Inventory (Summary of Interests in Land Option Agreements) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Deposits and Pre-acquisition Costs	$ 469,228	$ 404,922
Remaining Purchase Price	6,498,867	5,457,878
Land options with VIEs
Variable Interest Entity [Line Items]
Deposits and Pre-acquisition Costs	209,767	179,604
Remaining Purchase Price	2,824,818	2,329,187
Other land options
Variable Interest Entity [Line Items]
Deposits and Pre-acquisition Costs	259,461	225,318
Remaining Purchase Price	$ 3,674,049	$ 3,128,691