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Inventory (Summary of Interests in Land Option Agreements) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Deposits and Pre-acquisition Costs | $ 255,430 | $ 218,568
Remaining Purchase Price | 2,803,409 | 2,602,410
Land options with VIEs |  |
Variable Interest Entity [Line Items] |  |
Deposits and Pre-acquisition Costs | 100,523 | 90,717
Remaining Purchase Price | 1,109,963 | 1,079,507
Other land options |  |
Variable Interest Entity [Line Items] |  |
Deposits and Pre-acquisition Costs | 154,907 | 127,851
Remaining Purchase Price | $ 1,693,446 | $ 1,522,903

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- Details
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- Details
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