Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 349,480	$ 287,950
Other comprehensive loss, net of tax:
Foreign currency translation adjustments, net of income tax benefit of $1,500 and $3,393 for the three months ended March 31, 2022 and 2021	(8,012)	(16,197)
Other comprehensive loss	(8,012)	(16,197)
Comprehensive income	341,468	271,753
Less comprehensive income attributable to the noncontrolling interest	2,374	266
Comprehensive income attributable to shareholders	$ 339,094	$ 271,487