Basis of Presentation Basis of Presentation (Policies)	3 Months Ended
Basis of Presentation Basis of Presentation (Policies)	Mar. 31, 2019
Revenue Recognition Policy [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-02, Leases (“ASU 2016-02”), which requires organizations that lease assets - referred to as “lessees” - to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. Under ASU 2016-02, a lessee will be required to recognize assets and liabilities for all lease agreements. Lessor accounting remains substantially similar to current GAAP. In addition, disclosures of leasing activities will be expanded to include qualitative and specific quantitative information. For publicly traded companies, ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Following the issuance of ASU 2016-02, the FASB issued ASU No. 2018-01, Land Easement Practical Expedient for Transition to Topic 842 (“ASU 2018-01”), ASU No. 2018-10, Codification Improvements to Topic 842, Leases (“ASU 2018-10”), ASU No. 2018-11, Leases (Topic 842): Targeted Improvements (“ASU 2018-11”), and ASU No. 2018-20, Leases (Topic 842): Narrow-Scope Improvements (“ASU 2018-20”). In March 2019, the FASB issued ASU No. 2019-01, Leases (Topic 842): Codification Improvements (“ASU 2019-01”) which clarifies how to apply certain aspects of the new lease standard as discussed in more detail below. These ASUs do not change the core principle of the guidance stated in ASU 2016-02, but are instead intended to clarify and improve the operability of certain topics addressed by ASU 2016-02 and provide practical expedients for certain aspects of the guidance to aid companies in transition. These additional ASUs have the same effective date and transition requirements as ASU 2016-02. We adopted ASU 2016-02 and the subsequently issued ASUs identified above on January 1, 2019 using the additional modified retrospective transition method in accordance with ASU 2018-11, which includes a cumulative catch-up in retained earnings on the initial date of adoption (i.e., the initial date of adoption method). The adoption of the new lease standard did not have any impact on our retained earnings. At January 1, 2019, we recognized Operating Right-of-Use (“ROU”) Assets and Operating Lease Liabilities of $20.9 million on our Unaudited Condensed Consolidated Balance Sheets. As a result of adopting the standard, we added certain internal controls to our control framework and ensured that these controls were designed and operating as part of the implementation process. See Note 15 to the Company’s financial statements for the additional expanded disclosures required by the new standard.
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Impact of New Accounting Standards In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). ASU 2018-13 modifies the disclosure requirements for fair value measurements and removes the requirement to disclose (1) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy, (2) the policy for timing of transfers between levels, and (3) the valuation processes for Level 3 fair value measurements. ASU 2018-13 requires disclosure of changes in unrealized gains and losses for the period included in other comprehensive income (loss) for recurring Level 3 fair value measurements held at the end of the reporting period and the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. For all entities, ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. We are currently evaluating the effect that this guidance will have on our consolidated financial statements and disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force) (“ASU 2018-15”). ASU 2018-15 requires entities that are customers in cloud computing arrangements to defer implementation costs if they would be capitalized by the entity in software licensing arrangements under the internal-use software guidance. The guidance may be applied retrospectively or prospectively to implementation costs incurred after the date of adoption. For publicly traded companies, ASU 2018-15 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. We are currently evaluating the effect that this guidance will have on our consolidated financial statements and disclosures. In March 2019, the FASB issued ASU 2019-01, Leases (Topic 842): Codification Improvements (“ASU 2019-01”), which provides clarification on implementation issues associated with adopting ASU 2016-02. The implementation issues noted in ASU 2019-01 include determining the fair value of the underlying asset by lessors that are not manufacturers or dealers, presentation on the statement of cash flows for sales-type and direct financing leases, and transition disclosures related to Topic 250, Accounting Changes and Error Corrections. We applied the guidance on January 1, 2019, the date we adopted ASU 2016-02. The adoption of this ASU did not have a material impact on our financial position, results of operations, cash flows, or presentation thereof. Significant Accounting Policies We believe that there have been no significant changes to our significant accounting policies during the quarter ended March 31, 2019 as compared to those disclosed in our 2018 Form 10-K, other than the changes described below. Leases The Company leases certain office space and model homes under operating leases with remaining terms of one to six years. The Company sells model homes to investors with the express purpose of leasing the homes back as sales models for a specified period of time. Under ASC 842, the Company records the sale of the model home and the profit on the sale at the time of the home delivery. The Company determines if an arrangement is a lease at inception when the arrangement transfers the right to control the use of an identified asset to the Company. ROU assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make payments arising from the lease agreement. The Company has operating leases, but does not have any financing leases. Operating lease ROU assets and operating lease liabilities are recognized at the lease commencement date based on the present value of the lease payments over the lease term. The lease term may include an option to extend or terminate a lease when it is reasonably certain that the option will be exercised. The exercise of these lease renewal options is generally at our discretion. The operating lease ROU assets include any lease payments made in advance and exclude any lease incentives. Lease payments include both lease and non-lease components as a single lease component. Lease expense is recognized on a straight-line basis over the lease term. The expense recognition pattern for our leases remained substantially unchanged as a result of the adoption of ASC 842. Variable lease payments consist of non-lease services related to the lease. Variable lease payments are excluded from the ROU assets and lease liabilities and are expensed as incurred. Short-term leases include leases with terms of less than one year without renewal options that are reasonably certain to be exercised and are recognized on a straight-line basis over the lease term. Due to our election of the practical expedient, leases with an initial term of twelve months or less are not recorded on the balance sheet. As the rate implicit in our leases is not readily determinable, the Company uses its estimated incremental borrowing rate at the commencement date in determining the present value of the lease payments. We give consideration to our recent debt issuances as well as to the current rate available under our Credit Facility (defined below) when calculating our incremental borrowing rate. Our lease agreements do not contain any residual value guarantees or material restrictive covenants. See Note 15 to our financial statements for further discussion.
Lessee, Leases [Policy Text Block]	Leases The Company leases certain office space and model homes under operating leases with remaining terms of one to six years. The Company sells model homes to investors with the express purpose of leasing the homes back as sales models for a specified period of time. Under ASC 842, the Company records the sale of the model home and the profit on the sale at the time of the home delivery. The Company determines if an arrangement is a lease at inception when the arrangement transfers the right to control the use of an identified asset to the Company. ROU assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make payments arising from the lease agreement. The Company has operating leases, but does not have any financing leases. Operating lease ROU assets and operating lease liabilities are recognized at the lease commencement date based on the present value of the lease payments over the lease term. The lease term may include an option to extend or terminate a lease when it is reasonably certain that the option will be exercised. The exercise of these lease renewal options is generally at our discretion. The operating lease ROU assets include any lease payments made in advance and exclude any lease incentives. Lease payments include both lease and non-lease components as a single lease component. Lease expense is recognized on a straight-line basis over the lease term. The expense recognition pattern for our leases remained substantially unchanged as a result of the adoption of ASC 842. Variable lease payments consist of non-lease services related to the lease. Variable lease payments are excluded from the ROU assets and lease liabilities and are expensed as incurred. Short-term leases include leases with terms of less than one year without renewal options that are reasonably certain to be exercised and are recognized on a straight-line basis over the lease term. Due to our election of the practical expedient, leases with an initial term of twelve months or less are not recorded on the balance sheet. As the rate implicit in our leases is not readily determinable, the Company uses its estimated incremental borrowing rate at the commencement date in determining the present value of the lease payments. We give consideration to our recent debt issuances as well as to the current rate available under our Credit Facility (defined below) when calculating our incremental borrowing rate. Our lease agreements do not contain any residual value guarantees or material restrictive covenants. See Note 15 to our financial statements for further discussion.