| **Commitments and Contingencies**                       | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|---------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Commitments and Contingencies Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| Commitments and Contingencies                           | Commitments and ContingenciesMetropolitan DistrictsThe Company credit-enhances $8.0 million of bonds issued by Holland Creek Metropolitan District (“HCMD”) through an $8.1 million letter of credit issued under the Company’s Credit Agreement. HCMD’s bonds were issued and used to build infrastructure associated with the Company’s Red Sky Ranch residential development. The Company has agreed to pay capital improvement fees to Red Sky Ranch Metropolitan District (“RSRMD”) until RSRMD’s revenue streams from property taxes are sufficient to meet debt service requirements under HCMD’s bonds, and the Company has recorded a liability of $1.8 million primarily within “other long-term liabilities” in the accompanying Consolidated Condensed Balance Sheets, as of April 30, 2013, July 31, 2012 and April 30, 2012, respectively, with respect to the estimated present value of future RSRMD capital improvement fees. The Company estimates that it will make capital improvement fee payments under this arrangement through the year ending July 31, 2028.Guarantees/IndemnificationsAs of April 30, 2013, the Company had various other letters of credit in the amount of $58.4 million, consisting primarily of $53.4 million in support of the Employee Housing Bonds and $3.4 million for workers’ compensation and general liability deductibles related to construction and development activities.In addition to the guarantees noted above, the Company has entered into contracts in the normal course of business which include certain indemnifications under which it could be required to make payments to third parties upon the occurrence or non-occurrence of certain future events. These indemnities include indemnities to licensees in connection with the licensees’ use of the Company’s trademarks and logos, indemnities for liabilities associated with the infringement of other parties’ technology and software products, indemnities related to liabilities associated with the use of easements, indemnities related to employment of contract workers, the Company’s use of trustees, indemnities related to the Company’s use of public lands and environmental indemnifications. The duration of these indemnities generally is indefinite and generally do not limit the future payments the Company could be obligated to make.As permitted under applicable law, the Company and certain of its subsidiaries indemnify their directors and officers over their lifetimes for certain events or occurrences while the officer or director is, or was, serving the Company or its subsidiaries in such a capacity. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has a director and officer insurance policy that should enable the Company to recover a portion of any future amounts paid.Unless otherwise noted, the Company has not recorded any significant liabilities for the letters of credit, indemnities and other guarantees noted above in the accompanying Consolidated Condensed Financial Statements, either because the Company has recorded on its Consolidated Condensed Balance Sheets the underlying liability associated with the guarantee, the guarantee is with respect to the Company’s own performance and is therefore not subject to the measurement requirements as prescribed by GAAP, or because the Company has calculated the fair value of the indemnification or guarantee to be immaterial based upon the current facts and circumstances that would trigger a payment under the indemnification clause. In addition, with respect to certain indemnifications it is not possible to determine the maximum potential amount of liability under these guarantees due to the unique set of facts and circumstances that are likely to be involved in each particular claim and indemnification provision. Historically, payments made by the Company under these obligations have not been material.As noted above, the Company makes certain indemnifications to licensees in connection with their use of the Company’s trademarks and logos. The Company does not record any liabilities with respect to these indemnifications.Self InsuranceThe Company is self-insured for claims under its health benefit plans and for the majority of workers’ compensation claims, subject to a stop loss policy. The self-insurance liability related to workers’ compensation is determined actuarially based on claims filed. The self-insurance liability related to claims under the Company’s health benefit plans is determined based on analysis of actual claims. The amounts related to these claims are included as a component of accrued benefits in accounts payable and accrued liabilities (see Note 6, Supplementary Balance Sheet Information).LegalThe Company is a party to various lawsuits arising in the ordinary course of business. Management believes the Company has adequate insurance coverage and/or has accrued for loss contingencies for all known matters that are deemed to be probable losses and estimable. As of April 30, 2013, July 31, 2012 and April 30, 2012, the accrual for the above loss contingencies was not material individually and in the aggregate. |

| X                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_CommitmentsAndContingenciesDisclosureAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The entire disclosure for commitments and contingencies.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 14 -Paragraph 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
+ Details**Name:**us-gaap_CommitmentsAndContingenciesDisclosureTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |