Investment in Unconsolidated Joint Ventures (Notes)	9 Months Ended
Sep. 30, 2017
Schedule of Equity Method Investments [Line Items]
Equity Method Investments and Joint Ventures Disclosure [Text Block]	NOTE 3. Investment in Joint Venture Arrangements Investment in Joint Venture Arrangements In order to minimize our investment and risk of land exposure in a single location, we have periodically partnered with other land developers or homebuilders to share in the land investment and development of a property through joint ownership and development agreements, joint ventures, and other similar arrangements. During the nine-month period ended September 30, 2017, we decreased our total investment in such joint venture arrangements by $5.0 million from $28.0 million at December 31, 2016 to $23.0 million at September 30, 2017, which was driven primarily by our increased lot distributions from unconsolidated joint ventures of $11.8 million, offset, in part, by our cash contributions to our unconsolidated joint ventures during the first nine months of 2017 of $8.4 million. We believe that the Company’s maximum exposure related to its investment in these joint venture arrangements as of September 30, 2017 is the amount invested of $23.0 million, which is reported as Investment in Joint Venture Arrangements on our Unaudited Condensed Consolidated Balance Sheets, although we expect to invest further amounts in these joint venture arrangements as development of the properties progresses. We use the equity method of accounting for investments in unconsolidated joint ventures over which we exercise significant influence but do not have a controlling interest. Under the equity method, our share of the unconsolidated joint ventures’ earnings or loss, if any, is included in our consolidated statement of income. The Company assesses its investments in unconsolidated joint ventures for recoverability on a quarterly basis. Refer to Note 4 for additional details relating to our procedures for evaluating our investments for impairment. For joint venture arrangements where a special purpose entity is established to own the property, we generally enter into limited liability company or similar arrangements (“LLCs”) with the other partners. The Company’s ownership in these LLCs as of September 30, 2017 ranged from 25% to 97% and at December 31, 2016 ranged from 25% to 74%. These entities typically engage in land development activities for the purpose of distributing or selling developed lots to the Company and its partners in the LLC. Variable Interest Entities With respect to our investments in these LLCs, we are required, under ASC 810-10, Consolidation (“ASC 810”), to evaluate whether or not such entities should be consolidated into our consolidated financial statements. We initially perform these evaluations when each new entity is created and upon any events that require reconsideration of the entity. See Note 1, “Summary of Significant Accounting Policies - Variable Interest Entities” in the Company’s 2016 Form 10-K for additional information regarding the Company’s methodology for evaluating entities for consolidation. Land Option Agreements In the ordinary course of business, the Company enters into land option or purchase agreements for which we generally pay non-refundable deposits. Pursuant to these land option agreements, the Company provides a deposit to the seller as consideration for the right to purchase land at different times in the future, usually at predetermined prices. In accordance with ASC 810, we analyze our land option or purchase agreements to determine whether the corresponding land sellers are VIEs and, if so, whether we are the primary beneficiary, as further described in Note 1, “Summary of Significant Accounting Policies - Land Option Agreements” in the Company’s 2016 Form 10-K. If we are deemed to be the primary beneficiary of the VIE, we will consolidate the VIE in our consolidated financial statements and reflect such assets and liabilities in our Consolidated Inventory not Owned in our Unaudited Condensed Consolidated Balance Sheets. At both September 30, 2017 and December 31, 2016, we concluded that we were not the primary beneficiary of any VIEs from which we are purchasing land under option or purchase agreements.

NOTE 3. Investment in Joint Venture Arrangements

Investment in Joint Venture Arrangements

In order to minimize our investment and risk of land exposure in a single location, we have periodically partnered with other land developers or homebuilders to share in the land investment and development of a property through joint ownership and development agreements, joint ventures, and other similar arrangements. During the nine-month period ended September 30, 2017, we decreased our total investment in such joint venture arrangements by $5.0 million from $28.0 million at December 31, 2016 to $23.0 million at September 30, 2017, which was driven primarily by our increased lot distributions from unconsolidated joint ventures of $11.8 million, offset, in part, by our cash contributions to our unconsolidated joint ventures during the first nine months of 2017 of $8.4 million.

We believe that the Company’s maximum exposure related to its investment in these joint venture arrangements as of September 30, 2017 is the amount invested of $23.0 million, which is reported as Investment in Joint Venture Arrangements on our Unaudited Condensed Consolidated Balance Sheets, although we expect to invest further amounts in these joint venture arrangements as development of the properties progresses.

We use the equity method of accounting for investments in unconsolidated joint ventures over which we exercise significant influence but do not have a controlling interest. Under the equity method, our share of the unconsolidated joint ventures’ earnings or loss, if any, is included in our consolidated statement of income. The Company assesses its investments in unconsolidated joint ventures for recoverability on a quarterly basis. Refer to Note 4 for additional details relating to our procedures for evaluating our investments for impairment.

For joint venture arrangements where a special purpose entity is established to own the property, we generally enter into limited liability company or similar arrangements (“LLCs”) with the other partners. The Company’s ownership in these LLCs as of September 30, 2017 ranged from 25% to 97% and at December 31, 2016 ranged from 25% to 74%. These entities typically engage in land development activities for the purpose of distributing or selling developed lots to the Company and its partners in the LLC.

Variable Interest Entities

With respect to our investments in these LLCs, we are required, under ASC 810-10, Consolidation (“ASC 810”), to evaluate whether or not such entities should be consolidated into our consolidated financial statements. We initially perform these evaluations when each new entity is created and upon any events that require reconsideration of the entity. See Note 1, “Summary of Significant Accounting Policies - Variable Interest Entities” in the Company’s 2016 Form 10-K for additional information regarding the Company’s methodology for evaluating entities for consolidation.

Land Option Agreements

In the ordinary course of business, the Company enters into land option or purchase agreements for which we generally pay non-refundable deposits. Pursuant to these land option agreements, the Company provides a deposit to the seller as consideration for the right to purchase land at different times in the future, usually at predetermined prices. In accordance with ASC 810, we analyze our land option or purchase agreements to determine whether the corresponding land sellers are VIEs and, if so, whether we are the primary beneficiary, as further described in Note 1, “Summary of Significant Accounting Policies - Land Option Agreements” in the Company’s 2016 Form 10-K. If we are deemed to be the primary beneficiary of the VIE, we will consolidate the VIE in our consolidated financial statements and reflect such assets and liabilities in our Consolidated Inventory not Owned in our Unaudited Condensed Consolidated Balance Sheets. At both September 30, 2017 and December 31, 2016, we concluded that we were not the primary beneficiary of any VIEs from which we are purchasing land under option or purchase agreements.