Commitments and Contingencies (Schedule of Expected Land and Lot Purchase Payments Under Option Agreements) (Details) $ in Thousands	Sep. 30, 2019 USD ($) lot	Dec. 31, 2018 lot
Commitments and Contingencies Disclosure [Abstract]
Lots under option \| lot	2,855	1,843
Remainder of 2019	$ 52,978
2019	113,458
2020	49,861
2021	8,075
Total	$ 224,372

Land and Lots under Purchase Options, Expected Purchase Payments, Remainder of Fiscal Year

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Land and lots under Purchase Options, Expected Purchase Payments, Total

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Land and lots under Purchase Options, Expected Purchase Payments, Year Four

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Land and lots under Purchase Options, Expected Purchase Payments, Year Three

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Land and lots under Purchase Options, Expected Purchase Payments, Year Two

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Lots under Purchase Options, Number

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