"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. 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<link:calculationArc order=\"3\" weight=\"-1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_90e94f22-1627-4971-b00d-04eebdeb074b\" xlink:to=\"loc_us-gaap_PaymentsOfDividendsMinorityInterest_fb44eb4c-792c-4f15-af0b-ee7506155dd3\" xlink:type=\"arc\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ProceedsFromMinorityShareholders_e391d4f8-c919-4b41-89b1-027cc2fe4565\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromMinorityShareholders\"/>\n    <link:calculationArc order=\"4\" weight=\"1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_90e94f22-1627-4971-b00d-04eebdeb074b\" xlink:to=\"loc_us-gaap_ProceedsFromMinorityShareholders_e391d4f8-c919-4b41-89b1-027cc2fe4565\" xlink:type=\"arc\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PaymentsForRepurchaseOfCommonStock_f0bf5ac1-d9fe-4868-83df-bc9f07b4039a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock\"/>\n    <link:calculationArc order=\"5\" weight=\"-1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_90e94f22-1627-4971-b00d-04eebdeb074b\" xlink:to=\"loc_us-gaap_PaymentsForRepurchaseOfCommonStock_f0bf5ac1-d9fe-4868-83df-bc9f07b4039a\" xlink:type=\"arc\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ProceedsFromIssuanceOfCommonStock_7a762cf3-8e22-480e-a4e8-08f1e06f9971\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock\"/>\n    <link:calculationArc order=\"6\" weight=\"1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" 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xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToMinorityShareholders\"/>\n    <link:calculationArc order=\"8\" weight=\"-1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_90e94f22-1627-4971-b00d-04eebdeb074b\" xlink:to=\"loc_us-gaap_PaymentsToMinorityShareholders_a8bce615-ce0a-4a20-bde1-62cbd0c394e6\" xlink:type=\"arc\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PaymentsOfDividendsCommonStock_f9aa47af-8226-427a-b19f-7240be83df69\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfDividendsCommonStock\"/>\n    <link:calculationArc order=\"9\" weight=\"-1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_90e94f22-1627-4971-b00d-04eebdeb074b\" 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<link:calculationArc order=\"1\" weight=\"1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_cedf6bb3-9be8-4447-b204-7af7c7c05546\" xlink:to=\"loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_8bde8881-3150-4192-8ff3-e546aa79d75d\" xlink:type=\"arc\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_535e080a-ba19-4f67-aa4c-3a4bfcbc6e3c\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities\"/>\n    <link:calculationArc order=\"2\" weight=\"1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_cedf6bb3-9be8-4447-b204-7af7c7c05546\" 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xlink:label=\"loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_c9dbc7dc-2c33-48b5-8007-33800e424ab9\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncreaseDecreaseInAccountsReceivable_a6202eca-85aa-437c-bc07-1fa97fddf37e\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable\"/>\n    <link:calculationArc order=\"1\" weight=\"-1.0\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/summation-item\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_c9dbc7dc-2c33-48b5-8007-33800e424ab9\" xlink:to=\"loc_us-gaap_IncreaseDecreaseInAccountsReceivable_a6202eca-85aa-437c-bc07-1fa97fddf37e\" xlink:type=\"arc\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_nni_IncreaseDecreaseInOperatingLeaseRightOfUseAsset_482ace9c-8133-4622-960f-f99a051cd038\" 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xlink:to=\"loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_65ba6ce6-e250-4fbf-b489-043f38794e95\" xlink:type=\"arc\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PaymentsToAcquir\n\n##Definition 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\" xmlns:xbrldt=\"http://xbrl.org/2005/xbrldt\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/all\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#all\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/dimension-default\" 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: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_IncreaseDecreaseInOperatingLeaseLiability\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability\" xlink:to=\"lab_us-gaap_IncreaseDecreaseInOperatingLeaseLiability\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_b9bfccba-5dd6-408c-8f69-3cec166a24c3_terseLabel_en-US\" xlink:label=\"lab_us-gaap_IncreaseDecreaseInOperatingLeaseLiability\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Decrease in the carrying amount of lease liability</link:label>\n    <link:label id=\"lab_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_label_en-US\" xlink:label=\"lab_us-gaap_IncreaseDecreaseInOperatingLeaseLiability\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Increase (Decrease) in Operating Lease Liability</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_89f34ca1-7283-4a48-b667-47dcc31fdc28_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 value</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_GainLossOnSalesOfLoansNet\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnSalesOfLoansNet\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_GainLossOnSalesOfLoansNet\" xlink:to=\"lab_us-gaap_GainLossOnSalesOfLoansNet\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_GainLossOnSalesOfLoansNet_6206ace9-a0f6-4ad3-9fd9-8009960685fa_negatedLabel_en-US\" xlink:label=\"lab_us-gaap_GainLossOnSalesOfLoansNet\" xlink:role=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Gain on sale of loans</link:label>\n    <link:label id=\"lab_us-gaap_GainLossOnSalesOfLoansNet_label_en-US\" xlink:label=\"lab_us-gaap_GainLossOnSalesOfLoansNet\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Gain (Loss) on Sales of Loans, Net</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_CounterpartyNameAxis\" xlink:href=\"https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_CounterpartyNameAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_CounterpartyNameAxis\" xlink:to=\"lab_srt_CounterpartyNameAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_CounterpartyNameAxis_0c090c92-61d6-4134-889f-8d4fae438ae8_terseLabel_en-US\" xlink:label=\"lab_srt_CounterpartyNameAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Counterparty Name [Axis]</link:label>\n    <link:label id=\"lab_srt_CounterpartyNameAxis_label_en-US\" xlink:label=\"lab_srt_CounterpartyNameAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Counterparty Name [Axis]</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_72951d92-0c90-4c99-a609-d1667355bb0d_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_d6747e7e-79e8-4b9d-9e52-dc178d51c2b7_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</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_NetCashProvidedByUsedInOperatingActivities\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInOperatingActivities\" xlink:to=\"lab_us-gaap_NetCashProvidedByUsedInOperatingActivities\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_b9bef69e-73f8-4863-a11a-b32ddf1a85a3_totalLabel_en-US\" xlink:label=\"lab_us-gaap_NetCashProvidedByUsedInOperatingActivities\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Net cash provided by operating activities</link:label>\n    <link:label id=\"lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_label_en-US\" xlink:label=\"lab_us-gaap_NetCashProvidedByUsedInOperatingActivities\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Net Cash Provided by (Used in) Operating Activities</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities\" xlink:to=\"lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_aa8db021-97c1-4119-865b-cdd06ad8419b_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Proceeds from sales of available-for-sale securities</link:label>\n    <link:label id=\"lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_label_en-US\" xlink:label=\"lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\" xlink:href=\"nni-20221231.xsd#nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\" xlink:to=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument_4f5dc2a9-40c9-4e6a-bff6-050fcbaae079_terseLabel_en-US\" xlink:label=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Proceeds from termination of derivative instruments, net</link:label>\n    <link:label id=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument_e4577d43-9d45-4a1e-9d49-63aeb85463f8_verboseLabel_en-US\" xlink:label=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Payments to terminate derivative instruments, net</link:label>\n    <link:label id=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument_label_en-US\" xlink:label=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Proceeds From (Payments For) Termination Of Derivative Instrument</link:label>\n    <link:label id=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument_documentation_en-US\" xlink:label=\"lab_nni_ProceedsFromPaymentsForTerminationOfDerivativeInstrument\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Proceeds From (Payments For) Termination Of Derivative Instrument</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PaymentsOfDividendsMinorityInterest\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfDividendsMinorityInterest\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_PaymentsOfDividendsMinorityInterest\" xlink:to=\"lab_us-gaap_PaymentsOfDividendsMinorityInterest\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_PaymentsOfDividendsMinorityInterest_4f2a9e58-141e-4a67-8b30-0abf8ff91567_negatedTerseLabel_en-US\" xlink:label=\"lab_us-gaap_PaymentsOfDividendsMinorityInterest\" xlink:role=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Distribution to noncontrolling interests</link:label>\n    <link:label id=\"lab_us-gaap_PaymentsOfDividendsMinorityInterest_label_en-US\" xlink:label=\"lab_us-gaap_PaymentsOfDividendsMinorityInterest\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Payments of Ordinary Dividends, Noncontrolling Interest</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi\" xlink:to=\"lab_us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi_c918e0c7-a585-4f5f-9ea4-856e4968ff51_negatedTerseLabel_en-US\" xlink:label=\"lab_us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi\" xlink:role=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Proceeds from sale (purchases) of equity securities, net</link:label>\n    <link:label id=\"lab_us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi_label_en-US\" xlink:label=\"lab_us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Increase (Decrease) in Equity Securities, FV-NI</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets\" xlink:to=\"lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_8462e26a-d38f-45ed-a2fa-ad403e163bbf_negatedTerseLabel_en-US\" xlink:label=\"lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets\" xlink:role=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">(Increase) decrease in other assets, net</link:label>\n    <link:label id=\"lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_a51938c7-c2eb-4c39-add3-a59c3e8c5b61_negatedLabel_en-US\" xlink:label=\"lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets\" xlink:role=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Decrease (increase) in other assets</link:label>\n    <link:label id=\"lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_label_en-US\" xlink:label=\"lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Increase (Decrease) in Other Operating Assets</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_ba17afd4-78b7-4a2d-9d28-a8e3c64e9082_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_us-gaap_PaymentsForRepurchaseOfCommonStock\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_PaymentsForRepurchaseOfCommonStock\" xlink:to=\"lab_us-gaap_PaymentsForRepurchaseOfCommonStock\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_PaymentsForRepurchaseOfCommonStock_232a4d9b-92de-402c-8d71-36300ecdde76_negatedLabel_en-US\" xlink:label=\"lab_us-gaap_PaymentsForRepurchaseOfCommonStock\" xlink:role=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Repurchases of common stock</link:label>\n    <link:label id=\"lab_us-gaap_PaymentsForRepurchaseOfCommonStock_label_en-US\" xlink:label=\"lab_us-gaap_PaymentsForRepurchaseOfCommonStock\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Payments for Repurchase of Common Stock</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:to=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0819b398-7d01-4226-80af-36b83556f07c_periodStartLabel_en-US\" xlink:label=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:role=\"http://www.xbrl.org/2003/role/periodStartLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash, cash equivalents, and restricted cash, beginning of period</link:label>\n    <link:label id=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_129102bd-38a0-4abd-aced-21459d1c8751_periodEndLabel_en-US\" xlink:label=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:role=\"http://www.xbrl.org/2003/role/periodEndLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash, cash equivalents, and restricted cash, end of period</link:label>\n    <link:label id=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_f753ae84-52e5-45ab-8f9f-68509b09ffbf_totalLabel_en-US\" xlink:label=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash, cash equivalents, and restricted cash</link:label>\n    <link:label id=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_label_en-US\" xlink:label=\"lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipAxis\" xlink:href=\"https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_OwnershipAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_OwnershipAxis\" xlink:to=\"lab_srt_OwnershipAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_OwnershipAxis_86b250b7-20e5-4f67-8db9-cbb0500fb74d_terseLabel_en-US\" xlink:label=\"lab_srt_OwnershipAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Ownership [Axis]</link:label>\n    <link:label id=\"lab_srt_OwnershipAxis_label_en-US\" xlink:label=\"lab_srt_OwnershipAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Ownership [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_nni_RestrictedCashDueToCustomers\" xlink:href=\"nni-20221231.xsd#nni_RestrictedCashDueToCustomers\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_nni_RestrictedCashDueToCustomers\" xlink:to=\"lab_nni_RestrictedCashDueToCustomers\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_nni_RestrictedCashDueToCustomers_2c4705aa-35f6-4372-b458-4dfa3dec907e_terseLabel_en-US\" xlink:label=\"lab_nni_RestrictedCashDueToCustomers\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Restricted cash - due to customers</link:label>\n    <link:label id=\"lab_nni_RestrictedCashDueToCustomers_label_en-US\" xlink:label=\"lab_nni_RestrictedCashDueToCustomers\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Restricted Cash Due To Customers</link:label>\n    <link:label id=\"lab_nni_RestrictedCashDueToCustomers_documentation_en-US\" xlink:label=\"lab_nni_RestrictedCashDueToCustomers\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Restricted Cash Due To Customers</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_GainOnSaleOfInvestments\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainOnSaleOfInvestments\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_GainOnSaleOfInvestments\" xlink:to=\"lab_us-gaap_GainOnSaleOfInvestments\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_GainOnSaleOfInvestments_7eaab0c2-f69f-45d3-9acb-4e8b22087094_negatedTerseLabel_en-US\" xlink:label=\"lab_us-gaap_GainOnSaleOfInvestments\" xlink:role=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Gain from deconsolidation of ALLO, including cash impact</link:label>\n    <link:label id=\"lab_us-gaap_GainOnSaleOfInvestments_label_en-US\" xlink:label=\"lab_us-gaap_GainOnSaleOfInvestments\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Gain on Sale of Investments</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember\" xlink:to=\"lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_9c44074b-58f6-49ab-b3e0-d9efe327fc0c_terseLabel_en-US\" xlink:label=\"lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Variable Interest Entity, Primary Beneficiary</link:label>\n    <link:label id=\"lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_label_en-US\" xlink:label=\"lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Variable Interest Entity, Primary Beneficiary [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract\" xlink:to=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_7b2ab6a0-905d-4d16-a009-1c9716c71629_terseLabel_en-US\" xlink:label=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash flows from investing activities, net of business acquisitions:</link:label>\n    <link:label id=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_label_en-US\" xlink:label=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Net Cash Provided by (Used in) Investing Activities [Abstract]</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_a7cda49b-08dc-47a3-951c-44209bcfbefd_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_2e87aa27-fcea-4f96-bf49-9e034467c5c0_verboseLabel_en-US\" xlink:label=\"lab_us-gaap_StatementBusinessSegmentsAxis\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Business 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_PaymentsOfDividendsCommonStock\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfDividendsCommonStock\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_PaymentsOfDividendsCommonStock\" xlink:to=\"lab_us-gaap_PaymentsOfDividendsCommonStock\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_PaymentsOfDividendsCommonStock_2abc6345-09ab-4533-8087-2cb58d110b7c_negatedLabel_en-US\" xlink:label=\"lab_us-gaap_PaymentsOfDividendsCommonStock\" xlink:role=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Dividends paid</link:label>\n    <link:label id=\"lab_us-gaap_PaymentsOfDividendsCommonStock_label_en-US\" xlink:label=\"lab_us-gaap_PaymentsOfDividendsCommonStock\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Payments of Ordinary Dividends, Common Stock</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetCashProvidedByUsedInInvestingActivities\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_NetCashProvidedByUsedInInvestingActivities\" xlink:to=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivities\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_de57a33a-9a7e-4f34-b949-de9b323e829d_totalLabel_en-US\" xlink:label=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivities\" xlink:role=\"http://www.xbrl.org/2003/role/totalLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Net cash provided by investing activities</link:label>\n    <link:label id=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_label_en-US\" xlink:label=\"lab_us-gaap_NetCashProvidedByUsedInInvestingActivities\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Net Cash Provided by (Used in) Investing Activities</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_nni_UnionBankAndTrustCompanyMember\" xlink:href=\"nni-20221231.xsd#nni_UnionBankAndTrustCompanyMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_nni_UnionBankAndTrustCompanyMember\" xlink:to=\"lab_nni_UnionBankAndTrustCompanyMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_nni_UnionBankAndTrustCompanyMember_22447d8e-ed91-4219-bad2-f9567aea1ce1_terseLabel_en-US\" xlink:label=\"lab_nni_UnionBankAndTrustCompanyMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Union Bank and Trust Company</link:label>\n    <link:label id=\"lab_nni_UnionBankAndTrustCompanyMember_label_en-US\" xlink:label=\"lab_nni_UnionBankAndTrustCompanyMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Union Bank and Trust Company [Member]</link:label>\n    <link:label id=\"lab_nni_UnionBankAndTrustCompanyMember_documentation_en-US\" xlink:label=\"lab_nni_UnionBankAndTrustCompanyMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Union Bank and Trust Company [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_nni_NelnetBankMember\" xlink:href=\"nni-20221231.xsd#nni_NelnetBankMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_nni_NelnetBankMember\" xlink:to=\"lab_nni_NelnetBankMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_nni_NelnetBankMember_12a55665-5621-4b33-8f70-17c2b104677a_terseLabel_en-US\" xlink:label=\"lab_nni_NelnetBankMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Nelnet Bank</link:label>\n    <link:label id=\"lab_nni_NelnetBankMember_label_en-US\" xlink:label=\"lab_nni_NelnetBankMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Nelnet Bank [Member]</link:label>\n    <link:label id=\"lab_nni_NelnetBankMember_documentation_en-US\" xlink:label=\"lab_nni_NelnetBankMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Nelnet Bank</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations\" xlink:to=\"lab_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations_f6305165-462e-457d-894e-ad961e27c0f7_negatedLabel_en-US\" xlink:label=\"lab_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations\" xlink:role=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Payments on bonds and notes payable</link:label>\n    <link:label id=\"lab_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations_5225981e-68d4-471e-b946-cccf702d00ed_negatedTerseLabel_en-US\" xlink:label=\"lab_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations\" xlink:role=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Payments on notes payable</link:label>\n    <link:label id=\"lab_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations_label_en-US\" xlink:label=\"lab_us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Repayments of Debt and Lease Obligation</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet\" xlink:to=\"lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_Der\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:nni=\"http://www.nelnet.com/20221231\" xmlns:srt=\"http://fasb.org/srt/2022\" 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from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivities (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivities (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivities (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffectAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract -> to=us-gaap:NetCashProvidedByUsedInFinancingActivities (role=http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable)\nProvenance: sheets include Definition-like sheets\n\nQuestion: What erroneous relationship type exists between us-gaap:IncreaseDecreaseInPayablesToCustomers and us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract, based on the provided XBRL filing and the US GAAP taxonomy?\nAnswer:\n\n    "

Answer: "Inappropriateness"