Fair Value Disclosures (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Disclosed at fair value:
Other notes payable	$ 40,889	$ 40,185
Level 2
Disclosed at fair value:
Financial Services debt	396,139	626,123
Senior notes payable	2,253,960	2,456,690
Level 1
Disclosed at fair value:
Cash, cash equivalents, and restricted cash	1,211,870	1,833,565
Fair Value, Measurements, Recurring | Residential mortgage loans available-for-sale | Level 2
Measured at fair value on a recurring basis:
Assets, fair value	510,275	947,139
Fair Value, Measurements, Recurring | Interest rate lock commitments | Level 2
Measured at fair value on a recurring basis:
Assets, fair value	8,378	8,549
Fair Value, Measurements, Recurring | Forward contracts | Level 2
Measured at fair value on a recurring basis:
Liabilities, fair value	26,229	(579)
Fair Value, Measurements, Recurring | Whole loan commitments | Level 2
Measured at fair value on a recurring basis:
Liabilities, fair value	$ 974	$ 380