Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Letters of credit outstanding	$ 307,700		$ 321,100
Surety bonds outstanding	$ 3,000,000		2,900,000
Comprehensive warranty against building defects	1 year
Maximum product warranty in years	10 years
Self-insurance liabilities	$ 276,294	$ 547,621	$ 267,474	$ 563,103
Incurred but not reported percentage of liability reserves	71.00%		68.00%
ROU assets	$ 105,800		$ 93,900
Operating lease liabilities	121,062		$ 109,000
Additional ROU assets under operating leases	19,600	3,700
Payments on lease liabilities	5,800	5,900
Total lease expense	15,700	15,000
Variable lease costs	5,300	3,600
Short-term lease costs	$ 3,800	$ 4,800