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Inventory (Summary of Interests in Land Option Agreements) (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Deposits and Pre-acquisition Costs | $ 201,820 | $ 195,436
Remaining Purchase Price | 2,267,665 | 2,102,563
Land options with VIEs |  |
Variable Interest Entity [Line Items] |  |
Deposits and Pre-acquisition Costs | 73,652 | 68,527
Remaining Purchase Price | 792,407 | 849,901
Other land options |  |
Variable Interest Entity [Line Items] |  |
Deposits and Pre-acquisition Costs | 128,168 | 126,909
Remaining Purchase Price | $ 1,475,258 | $ 1,252,662

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- Definition Carrying amount of an option or options to acquire real property. + References No definition available. + Details
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Balance Type: | debit
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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