Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net earnings	$ 206,129	$ 172,252
Foreign currency translation adjustment and other (net of tax benefit of $237 and $679, respectively)	(3,424)	(8,991)
Unrealized gain (loss) on cash flow hedge (net of taxes of $3,906 and $1,509, respectively)	12,060	4,588
Unrealized holding gain (loss) on available-for-sale investments (net of tax benefit of $125 and $71, respectively)	(378)	(217)
Comprehensive income	$ 214,387	$ 167,632