Summary of Significant Accounting Policies (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Assumption Duration [Line Items]
Goodwill	$ 16,400	$ 0
Servicing Asset	$ 6,477	7,821
Number of Operating Segments	16
Restricted Cash and Cash Equivalents	$ 664	986
Outstanding Deposits On Land and Lots	54,954
Land purchase deposits	33,662	32,556
Prepaid Land Acquisition Costs	7,873	5,634
Outstanding Letters of Credit in Lieu of Cash Deposits under Certain Land Option Contracts	9,869
Short-term Non-bank Loans and Notes Payable	3,500
Consolidated inventory not owned	19,308	21,545
Obligation for consolidated inventory not owned	$ 19,308	$ 21,545
Number of loans we retain mortgage servicing rights on	2,282	3,094
Letters of Credit and Bonds	$ 214,987
Outstanding Performance Bonds	155,360
Performance letters of credit outstanding	42,374
Financial Letters of Credit	10,323
Financial Bonds	$ 6,931
Minimum [Member]
Assumption Duration [Line Items]
Discount Rate Used in Determining Fair Value of land/lots	13.00%	13.00%
Maximum [Member]
Assumption Duration [Line Items]
Discount Rate Used in Determining Fair Value of land/lots	16.00%	16.00%

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Consolidation of inventory relating to land and lot option purchases contracts in which the entity is deemed to be the primary beneficiary of the arrangements and a transaction that did not qualify as a sale of inventory under current accounting standards thus the inventory remained on the entity's balance sheet.

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Financial Bonds

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Amount of letters of credit and bonds outstanding as of the reporting date.

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Number of loans we retain mortgage servicing rights on

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Outstanding performance and surety bonds related to site improvements

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Performance letters of credit outstanding

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

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