Other Assets and Accrued and Other Liabilities (Other Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Assets and Accrued and Other Liabilities [Abstract]
Self-insurance liabilities	$ 641,779	$ 709,798	$ 737,013	$ 758,812
Compensation-related	218,013	180,305
Operating Lease, Liability	91,365	91,408
Warranty	82,744	91,389	79,154	72,709
Accrued interest	50,950	48,483
Loan origination liabilities	11,969	25,159	$ 50,282	$ 34,641
Other	310,223	288,919
Accrued and other liabilities	$ 1,407,043	$ 1,435,461