"You are an auditor for XBRL filings. \nGiven two concepts and the provided filing (schema, presentation, calculation, definition, label, instance, and US GAAP taxonomy),\ndetermine which one of the following erroneous relationship types best describes the relationship between the two concepts:\n\n(1) Reversal  \n    Definition: A relationship is flagged as Reversal when the filer\u2019s extension taxonomy redefines element hierarchy inconsistently with the US GAAP taxonomy. Specifically, this occurs when an element that should be a sibling in the US GAAP taxonomy is instead defined as a child of another element (or vice versa, a child element is incorrectly redefined as a sibling).\n\n(2) Inappropriateness  \n    Definition: A relationship is flagged as Inappropriateness when elements appear under an abstract category where they do not belong, contrary to the US GAAP taxonomy.\n\n(3) CombinationErr  \n    Definition: A relationship is flagged as CombinationErr when an axis in the filer\u2019s extension taxonomy is associated with inappropriate members not permitted by the US GAAP taxonomy.\n\nYou must reference the US GAAP taxonomy to retrieve and check the two concepts across the entire filing.\nOutput only one of the following labels exactly, chosen strictly from:\n[\"Reversal\", \"Inappropriateness\", \"CombinationErr\"].\n\nNo explanations. No extra text. Only the label.\n\n    \n##Schema document\nNone\n\n##Presentation linkbase document\n<?xml version='1.0' encoding='US-ASCII'?>\n<link:linkbase xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:roleRef roleURI=\"http://www.westernalliancebancorp.com/role/SegmentsOperatingSegmentInformationDetail\" xlink:type=\"simple\" xlink:href=\"wal-20221231.xsd#SegmentsOperatingSegmentInformationDetail\"/>\n  <link:presentationLink xlink:role=\"http://www.westernalliancebancorp.com/role/SegmentsOperatingSegmentInformationDetail\" xlink:type=\"extended\">\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SegmentReportingAbstract_19a2106a-7a7a-4805-9bd9-dcba46efa248\" 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xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_wal_CashCashEquivalentsandInvestmentSecurities_115c64f0-10d1-4e66-a141-79238242941f\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LoansReceivableHeldForSaleAmount_e6908e8d-c35b-4349-b65e-f0fa7b690067\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LoansReceivableHeldForSaleAmount\"/>\n    <link:presentationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_LoansReceivableHeldForSaleAmount_e6908e8d-c35b-4349-b65e-f0fa7b690067\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" 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xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_79040273-8742-43a0-9299-5b42539d5c05\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2009/role/negatedTerseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2f6ef1f8-329b-4690-aa7f-7ba6d39461be\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss\"/>\n    <link:presentationArc order=\"15\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2f6ef1f8-329b-4690-aa7f-7ba6d39461be\" xlink:type=\"arc\" 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xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_NoninterestExpense_3ef99705-6fd9-4920-a65d-f68b0c05267a\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2009/role/negatedTerseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5b6ee66d-5a5a-43e7-844c-1fd513721e3c\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\"/>\n    <link:presentationArc order=\"18\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5b6ee66d-5a5a-43e7-844c-1fd513721e3c\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_6bd23c55-1cc6-440a-af91-38b12e2e87d4\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments\"/>\n    <link:presentationArc order=\"19\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_6bd23c55-1cc6-440a-af91-38b12e2e87d4\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncomeTaxExpenseBenefit_82158184-fe4f-474b-9d63-386c07fdbf32\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxExpenseBenefit\"/>\n    <link:presentationArc order=\"20\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_IncomeTaxExpenseBenefit_82158184-fe4f-474b-9d63-386c07fdbf32\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_OtherForeclosedAssets_542623a4-60d2-4de5-9b4d-702b9d004c28\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherForeclosedAssets\"/>\n    <link:presentationArc order=\"21\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_OtherForeclosedAssets_542623a4-60d2-4de5-9b4d-702b9d004c28\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_OtherLiabilitiesSegment_d7097f09-92ca-4945-b4aa-15e716c36215\" xlink:href=\"wal-20221231.xsd#wal_OtherLiabilitiesSegment\"/>\n    <link:presentationArc order=\"22\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_wal_OtherLiabilitiesSegment_d7097f09-92ca-4945-b4aa-15e716c36215\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_Liabilities_abcd4428-19fc-4c42-b89a-0a4ea9040560\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities\"/>\n    <link:presentationArc order=\"23\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_Liabilities_abcd4428-19fc-4c42-b89a-0a4ea9040560\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LiabilitiesAndStockholdersEquity_9dfcfb33-b920-4f74-976d-a26c52f7411e\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquity\"/>\n    <link:presentationArc order=\"24\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_LiabilitiesAndStockholdersEquity_9dfcfb33-b920-4f74-976d-a26c52f7411e\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_ExcessFundsProvidedbyUsedinSegmentBasis_8cd2787a-f415-465f-abc5-518bf498b2e7\" xlink:href=\"wal-20221231.xsd#wal_ExcessFundsProvidedbyUsedinSegmentBasis\"/>\n    <link:presentationArc order=\"25\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_wal_ExcessFundsProvidedbyUsedinSegmentBasis_8cd2787a-f415-465f-abc5-518bf498b2e7\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2009/role/negatedTerseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_BorrowingsandQualifyingDebt_af9224fe-3c5f-44f7-a03d-0d4d264334a7\" xlink:href=\"wal-20221231.xsd#wal_BorrowingsandQualifyingDebt\"/>\n    <link:presentationArc order=\"26\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_wal_BorrowingsandQualifyingDebt_af9224fe-3c5f-44f7-a03d-0d4d264334a7\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetIncomeLoss_d724e6e0-118a-416b-b75b-65a16836fdcf\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss\"/>\n    <link:presentationArc order=\"27\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_NetIncomeLoss_d724e6e0-118a-416b-b75b-65a16836fdcf\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n  </link:presentationLink>\n  </link:linkbase>\n\n\n##Calculation linkbase document\n<?xml version='1.0' encoding='US-ASCII'?>\n<link:linkbase xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" 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xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member\"/>\n  <link:roleRef roleURI=\"http://www.westernalliancebancorp.com/role/SegmentsOperatingSegmentInformationDetail\" xlink:type=\"simple\" xlink:href=\"wal-20221231.xsd#SegmentsOperatingSegmentInformationDetail\"/>\n  <link:definitionLink xlink:role=\"http://www.westernalliancebancorp.com/role/SegmentsOperatingSegmentInformationDetail\" xlink:type=\"extended\" id=\"i05a92a3a139245e6b36ec7c2908d95fb_SegmentsOperatingSegmentInformationDetail\">\n    <link:loc xlink:type=\"locator\" 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xlink:label=\"loc_us-gaap_LoansReceivableHeldForSaleAmount_e6908e8d-c35b-4349-b65e-f0fa7b690067\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LoansReceivableHeldForSaleAmount\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_LoansReceivableHeldForSaleAmount_e6908e8d-c35b-4349-b65e-f0fa7b690067\" xlink:type=\"arc\" order=\"3\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_70d2f12e-c0ec-41e4-b7bb-f01f51eb4b87\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" 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<link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_LoansAndLeasesReceivableNetReportedAmount_cd0fb5c8-8f90-4b22-a6f8-d09bbcadeb6d\" xlink:type=\"arc\" order=\"6\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_LoansandLeasesReceivableIncludingHeldforSaleNet_af94c4f2-60da-482e-9430-eacdbdbb93b8\" xlink:href=\"wal-20221231.xsd#wal_LoansandLeasesReceivableIncludingHeldforSaleNet\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_wal_LoansandLeasesReceivableIncludingHeldforSaleNet_af94c4f2-60da-482e-9430-eacdbdbb93b8\" xlink:type=\"arc\" order=\"7\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_6721b688-5c36-43fc-a5ac-d6cc303c2488\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_6721b688-5c36-43fc-a5ac-d6cc303c2488\" xlink:type=\"arc\" order=\"8\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_OtherAssetsSegment_6414610f-5f17-45a3-80d6-97cb555e72fd\" xlink:href=\"wal-20221231.xsd#wal_OtherAssetsSegment\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_wal_OtherAssetsSegment_6414610f-5f17-45a3-80d6-97cb555e72fd\" 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xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_79040273-8742-43a0-9299-5b42539d5c05\" xlink:type=\"arc\" order=\"13\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2f6ef1f8-329b-4690-aa7f-7ba6d39461be\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2f6ef1f8-329b-4690-aa7f-7ba6d39461be\" xlink:type=\"arc\" order=\"14\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoninterestIncome_27bd5203-fd32-46ff-ae7a-1c32f3dc5491\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestIncome\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_NoninterestIncome_27bd5203-fd32-46ff-ae7a-1c32f3dc5491\" xlink:type=\"arc\" order=\"15\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoninterestExpense_3ef99705-6fd9-4920-a65d-f68b0c05267a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestExpense\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_NoninterestExpense_3ef99705-6fd9-4920-a65d-f68b0c05267a\" xlink:type=\"arc\" 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xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_IncomeTaxExpenseBenefit_82158184-fe4f-474b-9d63-386c07fdbf32\" xlink:type=\"arc\" order=\"19\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_OtherForeclosedAssets_542623a4-60d2-4de5-9b4d-702b9d004c28\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherForeclosedAssets\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_OtherForeclosedAssets_542623a4-60d2-4de5-9b4d-702b9d004c28\" xlink:type=\"arc\" order=\"20\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_OtherLiabilitiesSegment_d7097f09-92ca-4945-b4aa-15e716c36215\" xlink:href=\"wal-20221231.xsd#wal_OtherLiabilitiesSegment\"/>\n    <link:definitionArc 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xlink:type=\"locator\" xlink:label=\"loc_wal_BorrowingsandQualifyingDebt_af9224fe-3c5f-44f7-a03d-0d4d264334a7\" xlink:href=\"wal-20221231.xsd#wal_BorrowingsandQualifyingDebt\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_wal_BorrowingsandQualifyingDebt_af9224fe-3c5f-44f7-a03d-0d4d264334a7\" xlink:type=\"arc\" order=\"25\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetIncomeLoss_d724e6e0-118a-416b-b75b-65a16836fdcf\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_SegmentReportingInformationLineItems_ecf290d4-73d3-470e-b39f-2784b68678f9\" xlink:to=\"loc_us-gaap_NetIncomeLoss_d724e6e0-118a-416b-b75b-65a16836fdcf\" xlink:type=\"arc\" 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xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SegmentDomain_6762e48d-a0a0-4ef5-b371-9db1497c9d65_default\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-default\" xlink:from=\"loc_us-gaap_StatementBusinessSegmentsAxis_6762e48d-a0a0-4ef5-b371-9db1497c9d65\" xlink:to=\"loc_us-gaap_SegmentDomain_6762e48d-a0a0-4ef5-b371-9db1497c9d65_default\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SegmentDomain_730ffeaf-6094-4bec-a81e-b03f533ec9ba\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:from=\"loc_us-gaap_StatementBusinessSegmentsAxis_6762e48d-a0a0-4ef5-b371-9db1497c9d65\" xlink:to=\"loc_us-gaap_SegmentDomain_730ffeaf-6094-4bec-a81e-b03f533ec9ba\" 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xlink:to=\"loc_wal_ConsumerRelatedSegmentMember_daa69f46-17eb-4d37-b0a1-463248a521fc\" xlink:type=\"arc\" order=\"3\"/>\n  </link:definitionLink>\n  </link:linkbase>\n\n\n##Label linkbase document\n<?xml version='1.0' encoding='UTF-8'?>\n<link:linkbase xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedPeriodStartLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/netLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedNetLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedPeriodEndLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedTotalLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel\"/>\n  <link:labelLink xlink:role=\"http://www.xbrl.org/2003/role/link\" xlink:type=\"extended\"><link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_UsGovernmentAgencyInsuredLoansMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UsGovernmentAgencyInsuredLoansMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_UsGovernmentAgencyInsuredLoansMember\" xlink:to=\"lab_us-gaap_UsGovernmentAgencyInsuredLoansMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_UsGovernmentAgencyInsuredLoansMember_f21ef566-679d-47da-93a1-07e9986d9a36_terseLabel_en-US\" xlink:label=\"lab_us-gaap_UsGovernmentAgencyInsuredLoansMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">US Government Agency Insured Loans</link:label>\n    <link:label id=\"lab_us-gaap_UsGovernmentAgencyInsuredLoansMember_label_en-US\" xlink:label=\"lab_us-gaap_UsGovernmentAgencyInsuredLoansMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">US Government Agency Insured Loans [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember\" xlink:to=\"lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_f4f7b794-aad1-48a1-af3c-a91510da39ee_terseLabel_en-US\" xlink:label=\"lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Carrying Amount [Member]</link:label>\n    <link:label id=\"lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_label_en-US\" xlink:label=\"lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Reported Value Measurement [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoninterestExpense\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoninterestExpense\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_NoninterestExpense\" xlink:to=\"lab_us-gaap_NoninterestExpense\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_NoninterestExpense_17601f74-a08e-42f0-8223-d8e3d1f027bf_totalLabel_en-US\" xlink:label=\"lab_us-gaap_NoninterestExpense\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Total non-interest expense</link:label>\n    <link:label id=\"lab_us-gaap_NoninterestExpense_8fedbede-89cf-4806-9bea-c7dd4551abdd_terseLabel_en-US\" xlink:label=\"lab_us-gaap_NoninterestExpense\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Non-interest expense</link:label>\n    <link:label id=\"lab_us-gaap_NoninterestExpense_871a462f-c2ae-4f2b-81b3-7c6530bc68e1_negatedTerseLabel_en-US\" xlink:label=\"lab_us-gaap_NoninterestExpense\" xlink:role=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Non-interest expense</link:label>\n    <link:label id=\"lab_us-gaap_NoninterestExpense_label_en-US\" xlink:label=\"lab_us-gaap_NoninterestExpense\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Noninterest Expense</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_ExcessFundsProvidedbyUsedinSegmentBasis\" xlink:href=\"wal-20221231.xsd#wal_ExcessFundsProvidedbyUsedinSegmentBasis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_ExcessFundsProvidedbyUsedinSegmentBasis\" xlink:to=\"lab_wal_ExcessFundsProvidedbyUsedinSegmentBasis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_ExcessFundsProvidedbyUsedinSegmentBasis_552adaa2-13d5-4167-82a5-cbbe847ef098_negatedTerseLabel_en-US\" xlink:label=\"lab_wal_ExcessFundsProvidedbyUsedinSegmentBasis\" xlink:role=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Excess Funds Provided by (Used in) Segment Basis</link:label>\n    <link:label id=\"lab_wal_ExcessFundsProvidedbyUsedinSegmentBasis_label_en-US\" xlink:label=\"lab_wal_ExcessFundsProvidedbyUsedinSegmentBasis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Excess Funds Provided by (Used in) Segment Basis</link:label>\n    <link:label id=\"lab_wal_ExcessFundsProvidedbyUsedinSegmentBasis_documentation_en-US\" xlink:label=\"lab_wal_ExcessFundsProvidedbyUsedinSegmentBasis\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Excess Funds Provided by (Used in) Segment Basis</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PledgedStatusAxis\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PledgedStatusAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_PledgedStatusAxis\" xlink:to=\"lab_us-gaap_PledgedStatusAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_PledgedStatusAxis_9748380d-f612-43ac-b8a9-d84610593954_terseLabel_en-US\" xlink:label=\"lab_us-gaap_PledgedStatusAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Pledged Status [Axis]</link:label>\n    <link:label id=\"lab_us-gaap_PledgedStatusAxis_label_en-US\" xlink:label=\"lab_us-gaap_PledgedStatusAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Pledged Status [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_FairValueInputsLevel1Member\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueInputsLevel1Member\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_FairValueInputsLevel1Member\" xlink:to=\"lab_us-gaap_FairValueInputsLevel1Member\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_FairValueInputsLevel1Member_97550092-9ef1-4dcb-bd18-8f8a4c333b81_terseLabel_en-US\" xlink:label=\"lab_us-gaap_FairValueInputsLevel1Member\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Level 1 [Member]</link:label>\n    <link:label id=\"lab_us-gaap_FairValueInputsLevel1Member_label_en-US\" xlink:label=\"lab_us-gaap_FairValueInputsLevel1Member\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Fair Value, Inputs, Level 1 [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CommonStockMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_CommonStockMember\" xlink:to=\"lab_us-gaap_CommonStockMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_CommonStockMember_8233dd82-b666-467a-bb9d-4fb7412b08c3_terseLabel_en-US\" xlink:label=\"lab_us-gaap_CommonStockMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Common Stock [Member]</link:label>\n    <link:label id=\"lab_us-gaap_CommonStockMember_label_en-US\" xlink:label=\"lab_us-gaap_CommonStockMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Common Stock [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SpecialMentionMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SpecialMentionMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_SpecialMentionMember\" xlink:to=\"lab_us-gaap_SpecialMentionMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_SpecialMentionMember_e420efc9-aa10-4125-93bf-34eca33155df_terseLabel_en-US\" xlink:label=\"lab_us-gaap_SpecialMentionMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Special Mention [Member]</link:label>\n    <link:label id=\"lab_us-gaap_SpecialMentionMember_label_en-US\" xlink:label=\"lab_us-gaap_SpecialMentionMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Special Mention [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_InterestIncomeExpenseNet\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeExpenseNet\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_InterestIncomeExpenseNet\" xlink:to=\"lab_us-gaap_InterestIncomeExpenseNet\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_InterestIncomeExpenseNet_9f00d5e7-cd82-4120-be52-a1ca6470751e_totalLabel_en-US\" xlink:label=\"lab_us-gaap_InterestIncomeExpenseNet\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Net interest income</link:label>\n    <link:label id=\"lab_us-gaap_InterestIncomeExpenseNet_62db7044-cb2c-4796-950c-1b421af1d323_verboseLabel_en-US\" xlink:label=\"lab_us-gaap_InterestIncomeExpenseNet\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Net interest income</link:label>\n    <link:label id=\"lab_us-gaap_InterestIncomeExpenseNet_label_en-US\" xlink:label=\"lab_us-gaap_InterestIncomeExpenseNet\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Interest Income (Expense), Net</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SubstandardMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubstandardMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_SubstandardMember\" xlink:to=\"lab_us-gaap_SubstandardMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_SubstandardMember_cad61082-3ad1-46dd-b153-f1675c7f35b8_terseLabel_en-US\" xlink:label=\"lab_us-gaap_SubstandardMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Substandard [Member]</link:label>\n    <link:label id=\"lab_us-gaap_SubstandardMember_label_en-US\" xlink:label=\"lab_us-gaap_SubstandardMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Substandard [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_OtherCollateralMember\" xlink:href=\"wal-20221231.xsd#wal_OtherCollateralMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_OtherCollateralMember\" xlink:to=\"lab_wal_OtherCollateralMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_OtherCollateralMember_91cbc2ae-a2e0-4d0c-b0c7-f546633be763_terseLabel_en-US\" xlink:label=\"lab_wal_OtherCollateralMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Collateral [Member]</link:label>\n    <link:label id=\"lab_wal_OtherCollateralMember_label_en-US\" xlink:label=\"lab_wal_OtherCollateralMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Collateral [Member]</link:label>\n    <link:label id=\"lab_wal_OtherCollateralMember_documentation_en-US\" xlink:label=\"lab_wal_OtherCollateralMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Collateral [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_FeesAndCommissionsMortgageBankingAndServicing\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FeesAndCommissionsMortgageBankingAndServicing\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_FeesAndCommissionsMortgageBankingAndServicing\" xlink:to=\"lab_us-gaap_FeesAndCommissionsMortgageBankingAndServicing\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_FeesAndCommissionsMortgageBankingAndServicing_e5f6b98c-7b10-4f10-bdcc-089c3f1ca947_terseLabel_en-US\" xlink:label=\"lab_us-gaap_FeesAndCommissionsMortgageBankingAndServicing\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Service charges and fees</link:label>\n    <link:label id=\"lab_us-gaap_FeesAndCommissionsMortgageBankingAndServicing_label_en-US\" xlink:label=\"lab_us-gaap_FeesAndCommissionsMortgageBankingAndServicing\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Fees and Commissions, Mortgage Banking and Servicing</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_AssetPledgedAsCollateralMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetPledgedAsCollateralMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_AssetPledgedAsCollateralMember\" xlink:to=\"lab_us-gaap_AssetPledgedAsCollateralMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_AssetPledgedAsCollateralMember_5f7712ce-d579-4e78-9010-6b793ed90067_terseLabel_en-US\" xlink:label=\"lab_us-gaap_AssetPledgedAsCollateralMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Asset Pledged as Collateral</link:label>\n    <link:label id=\"lab_us-gaap_AssetPledgedAsCollateralMember_label_en-US\" xlink:label=\"lab_us-gaap_AssetPledgedAsCollateralMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Asset Pledged as Collateral [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_OtherCommercialRealEstateNonownerOccupiedMember\" xlink:href=\"wal-20221231.xsd#wal_OtherCommercialRealEstateNonownerOccupiedMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_OtherCommercialRealEstateNonownerOccupiedMember\" xlink:to=\"lab_wal_OtherCommercialRealEstateNonownerOccupiedMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_OtherCommercialRealEstateNonownerOccupiedMember_c46a7991-d34a-4a28-b846-2a4365460741_terseLabel_en-US\" xlink:label=\"lab_wal_OtherCommercialRealEstateNonownerOccupiedMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Commercial Real Estate Non owner Occupied [Member]</link:label>\n    <link:label id=\"lab_wal_OtherCommercialRealEstateNonownerOccupiedMember_label_en-US\" xlink:label=\"lab_wal_OtherCommercialRealEstateNonownerOccupiedMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Commercial Real Estate Non owner Occupied [Member]</link:label>\n    <link:label id=\"lab_wal_OtherCommercialRealEstateNonownerOccupiedMember_documentation_en-US\" xlink:label=\"lab_wal_OtherCommercialRealEstateNonownerOccupiedMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Commercial Real Estate Non owner Occupied [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_ResidentialEBOMember\" xlink:href=\"wal-20221231.xsd#wal_ResidentialEBOMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_ResidentialEBOMember\" xlink:to=\"lab_wal_ResidentialEBOMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_ResidentialEBOMember_c7cb47bd-8f35-4b1c-a7db-58cd94352ab2_terseLabel_en-US\" xlink:label=\"lab_wal_ResidentialEBOMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Residential - EBO</link:label>\n    <link:label id=\"lab_wal_ResidentialEBOMember_label_en-US\" xlink:label=\"lab_wal_ResidentialEBOMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Residential - EBO [Member]</link:label>\n    <link:label id=\"lab_wal_ResidentialEBOMember_documentation_en-US\" xlink:label=\"lab_wal_ResidentialEBOMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Residential - Early buy out</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IntangibleAssetsNetIncludingGoodwill\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_IntangibleAssetsNetIncludingGoodwill\" xlink:to=\"lab_us-gaap_IntangibleAssetsNetIncludingGoodwill\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_IntangibleAssetsNetIncludingGoodwill_0c4ea31f-fc88-447d-be3b-585ce2180814_terseLabel_en-US\" xlink:label=\"lab_us-gaap_IntangibleAssetsNetIncludingGoodwill\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Goodwill and intangible assets, net</link:label>\n    <link:label id=\"lab_us-gaap_IntangibleAssetsNetIncludingGoodwill_label_en-US\" xlink:label=\"lab_us-gaap_IntangibleAssetsNetIncludingGoodwill\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Intangible Assets, Net (Including Goodwill)</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CollateralAxis\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CollateralAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_CollateralAxis\" xlink:to=\"lab_us-gaap_CollateralAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_CollateralAxis_a340d3f8-5db5-4d04-b80e-12b4d20acf3d_terseLabel_en-US\" xlink:label=\"lab_us-gaap_CollateralAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Collateral [Axis]</link:label>\n    <link:label id=\"lab_us-gaap_CollateralAxis_label_en-US\" xlink:label=\"lab_us-gaap_CollateralAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Collateral Held [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_StatementBusinessSegmentsAxis\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementBusinessSegmentsAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_StatementBusinessSegmentsAxis\" xlink:to=\"lab_us-gaap_StatementBusinessSegmentsAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_StatementBusinessSegmentsAxis_d7e84bb8-5621-40f6-8afe-d9f5e0b38a85_terseLabel_en-US\" xlink:label=\"lab_us-gaap_StatementBusinessSegmentsAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Segments [Axis]</link:label>\n    <link:label id=\"lab_us-gaap_StatementBusinessSegmentsAxis_label_en-US\" xlink:label=\"lab_us-gaap_StatementBusinessSegmentsAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Segments [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_Liabilities\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_Liabilities\" xlink:to=\"lab_us-gaap_Liabilities\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_Liabilities_06b5361c-3b9c-4d53-829e-8b77a2ff6125_totalLabel_en-US\" xlink:label=\"lab_us-gaap_Liabilities\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Total liabilities</link:label>\n    <link:label id=\"lab_us-gaap_Liabilities_c23ee12a-5b40-4232-b134-ba2db8d8f689_terseLabel_en-US\" xlink:label=\"lab_us-gaap_Liabilities\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Total liabilities</link:label>\n    <link:label id=\"lab_us-gaap_Liabilities_label_en-US\" xlink:label=\"lab_us-gaap_Liabilities\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Liabilities</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_WarehouselendingMember\" xlink:href=\"wal-20221231.xsd#wal_WarehouselendingMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_WarehouselendingMember\" xlink:to=\"lab_wal_WarehouselendingMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_WarehouselendingMember_62eadc77-6cc9-4086-8303-2ae05a329992_terseLabel_en-US\" xlink:label=\"lab_wal_WarehouselendingMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Warehouse lending [Member]</link:label>\n    <link:label id=\"lab_wal_WarehouselendingMember_label_en-US\" xlink:label=\"lab_wal_WarehouselendingMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Warehouse lending [Member]</link:label>\n    <link:label id=\"lab_wal_WarehouselendingMember_documentation_en-US\" xlink:label=\"lab_wal_WarehouselendingMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Warehouse lending [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncomeTaxExpenseBenefit\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxExpenseBenefit\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_IncomeTaxExpenseBenefit\" xlink:to=\"lab_us-gaap_IncomeTaxExpenseBenefit\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_IncomeTaxExpenseBenefit_cc594649-0dcf-4103-ac8e-d2b06687a8a8_terseLabel_en-US\" xlink:label=\"lab_us-gaap_IncomeTaxExpenseBenefit\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Income tax expense</link:label>\n    <link:label id=\"lab_us-gaap_IncomeTaxExpenseBenefit_60fa4b08-82d1-4ff6-9747-346cb6c070d3_verboseLabel_en-US\" xlink:label=\"lab_us-gaap_IncomeTaxExpenseBenefit\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Income tax benefit</link:label>\n    <link:label id=\"lab_us-gaap_IncomeTaxExpenseBenefit_dae6c065-15ef-4aab-8740-6fcd2fdb11c2_negatedLabel_en-US\" xlink:label=\"lab_us-gaap_IncomeTaxExpenseBenefit\" xlink:role=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Income tax benefit</link:label>\n    <link:label id=\"lab_us-gaap_IncomeTaxExpenseBenefit_label_en-US\" xlink:label=\"lab_us-gaap_IncomeTaxExpenseBenefit\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Income Tax Expense (Benefit)</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\" xlink:to=\"lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_35f18146-c57b-47ed-a082-3a6d38287d44_totalLabel_en-US\" xlink:label=\"lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Income before provision for income taxes</link:label>\n    <link:label id=\"lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_e25a88b4-1690-4f35-974f-c8ae15ed340a_terseLabel_en-US\" xlink:label=\"lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest</link:label>\n    <link:label id=\"lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_label_en-US\" xlink:label=\"lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PassMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PassMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_PassMember\" xlink:to=\"lab_us-gaap_PassMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_PassMember_59faa1ac-0b13-46d1-a442-1b7d58a38c2a_terseLabel_en-US\" xlink:label=\"lab_us-gaap_PassMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Pass [Member]</link:label>\n    <link:label id=\"lab_us-gaap_PassMember_label_en-US\" xlink:label=\"lab_us-gaap_PassMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Pass [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_HotelfranchisefinanceMember\" xlink:href=\"wal-20221231.xsd#wal_HotelfranchisefinanceMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_HotelfranchisefinanceMember\" xlink:to=\"lab_wal_HotelfranchisefinanceMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_HotelfranchisefinanceMember_8f8a9c2d-5a43-4323-a136-689b1a6c0447_terseLabel_en-US\" xlink:label=\"lab_wal_HotelfranchisefinanceMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Hotel franchise finance [Member]</link:label>\n    <link:label id=\"lab_wal_HotelfranchisefinanceMember_label_en-US\" xlink:label=\"lab_wal_HotelfranchisefinanceMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Hotel franchise finance [Member]</link:label>\n    <link:label id=\"lab_wal_HotelfranchisefinanceMember_documentation_en-US\" xlink:label=\"lab_wal_HotelfranchisefinanceMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Hotel franchise finance [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_EquityFundResourcesMember\" xlink:href=\"wal-20221231.xsd#wal_EquityFundResourcesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_EquityFundResourcesMember\" xlink:to=\"lab_wal_EquityFundResourcesMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_EquityFundResourcesMember_04500d28-b3f5-4169-94df-4253d6eaec43_terseLabel_en-US\" xlink:label=\"lab_wal_EquityFundResourcesMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Equity fund resources</link:label>\n    <link:label id=\"lab_wal_EquityFundResourcesMember_label_en-US\" xlink:label=\"lab_wal_EquityFundResourcesMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Equity fund resources [Member]</link:label>\n    <link:label id=\"lab_wal_EquityFundResourcesMember_documentation_en-US\" xlink:label=\"lab_wal_EquityFundResourcesMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Equity fund resources</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_OtherLiabilitiesSegment\" xlink:href=\"wal-20221231.xsd#wal_OtherLiabilitiesSegment\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_OtherLiabilitiesSegment\" xlink:to=\"lab_wal_OtherLiabilitiesSegment\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_OtherLiabilitiesSegment_3595da97-6404-4c05-b883-4972110e1047_terseLabel_en-US\" xlink:label=\"lab_wal_OtherLiabilitiesSegment\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Other liabilities</link:label>\n    <link:label id=\"lab_wal_OtherLiabilitiesSegment_label_en-US\" xlink:label=\"lab_wal_OtherLiabilitiesSegment\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Liabilities Segment</link:label>\n    <link:label id=\"lab_wal_OtherLiabilitiesSegment_documentation_en-US\" xlink:label=\"lab_wal_OtherLiabilitiesSegment\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Liabilities Segment</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_ConstructionAndLandDevelopmentLandMember\" xlink:href=\"wal-20221231.xsd#wal_ConstructionAndLandDevelopmentLandMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_ConstructionAndLandDevelopmentLandMember\" xlink:to=\"lab_wal_ConstructionAndLandDevelopmentLandMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_ConstructionAndLandDevelopmentLandMember_876e0526-bd0e-400e-bb38-12e70587387c_terseLabel_en-US\" xlink:label=\"lab_wal_ConstructionAndLandDevelopmentLandMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Construction And Land Development Land [Member]</link:label>\n    <link:label id=\"lab_wal_ConstructionAndLandDevelopmentLandMember_label_en-US\" xlink:label=\"lab_wal_ConstructionAndLandDevelopmentLandMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Construction And Land Development Land [Member]</link:label>\n    <link:label id=\"lab_wal_ConstructionAndLandDevelopmentLandMember_documentation_en-US\" xlink:label=\"lab_wal_ConstructionAndLandDevelopmentLandMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Construction and land development land.</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_wal_BorrowingsandQualifyingDebt\" xlink:href=\"wal-20221231.xsd#wal_BorrowingsandQualifyingDebt\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_wal_BorrowingsandQualifyingDebt\" xlink:to=\"lab_wal_BorrowingsandQualifyingDebt\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_wal_BorrowingsandQualify\n\n##Instance document\n<?xml version='1.0' encoding='UTF-8'?>\n<xbrl xmlns=\"http://www.xbrl.org/2003/instance\" xmlns:dei=\"http://xbrl.sec.gov/dei/2022\" xmlns:iso4217=\"http://www.xbrl.org/2003/iso4217\" xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:srt=\"http://fasb.org/srt/2022\" xmlns:us-gaap=\"http://fasb.org/us-gaap/2022\" xmlns:wal=\"http://www.westernalliancebancorp.com/20221231\" xmlns:xbrldi=\"http://xbrl.org/2006/xbrldi\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xml:lang=\"en-US\"><link:schemaRef xlink:href=\"wal-20221231.xsd\" xlink:type=\"simple\"/>\n\t<context id=\"i4bc98c078f0b4d3496debec60f2b5e8d_D20220101-20221231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n        </entity>\n        <period>\n            <startDate>2022-01-01</startDate>\n            <endDate>2022-12-31</endDate>\n        </period>\n    </context>\n\t<context id=\"i71b7fbe4053c41e88369e6329703e67a_D20210101-20211231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n        </entity>\n        <period>\n            <startDate>2021-01-01</startDate>\n            <endDate>2021-12-31</endDate>\n        </period>\n    </context>\n\t<context id=\"i76842e84fe8a4a37b98f393b747ad280_D20200101-20201231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n       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id=\"i87db1d07dd81413881241788630cd156_I20221231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:FinancingReceivablePortfolioSegmentAxis\">wal:OtherLoanSegmentMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2022-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"i06b81cd76e4845e3bcf4eebf5fa407e8_I20211231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:FinancingReceivablePortfolioSegmentAxis\">wal:OtherLoanSegmentMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2021-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"icf72b727ea4f49e0ba0d1ca934bfd838_I20221231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:FinancingReceivablePortfolioSegmentAxis\">wal:ConstructionAndLandDevelopmentMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2022-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"i86b56b09f2114ce3b9ad44a11a3f771a_I20211231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:FinancingReceivablePortfolioSegmentAxis\">wal:ConstructionAndLandDevelopmentMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2021-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"i61568a3441454df8884362e0cbf28f89_I20221231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:FinancingReceivablePortfolioSegmentAxis\">wal:WarehouselendingMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:InternalCreditAssessmentAxis\">us-gaap:PassMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2022-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"i5301c15b12104a1589fc21ae363c1a97_I20221231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:FinancingReceivablePortfolioSegmentAxis\">wal:WarehouselendingMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:InternalCreditAssessmentAxis\">us-gaap:SpecialMentionMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2022-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"ib5d250203e25424886b308d9cd8b195c_I20221231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:FinancingReceivablePortfolioSegmentAxis\">wal:WarehouselendingMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:InternalCreditAssessmentAxis\">wal:ClassifiedMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2022-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"ieefce72806b846f1bf55ca0f75283bbe_I20221231\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001212545</identifier>\n            <segment>\n                <xbrldi:explicitMember dime\n\n##US GAAP Taxonomy\nNone\n\nQuestion: What erroneous relationship type exists between StatementBusinessSegmentsAxis and ParentCompanyMember, based on the provided XBRL filing and the US GAAP taxonomy?\nAnswer:\n\n    "

Answer: "CombinationErr"