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Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 652,984	$ 355,766	$ 350,158
Foreign currency translation adjustments	(1,125)	1,134	726
Unrealized gain on available-for-sale securities, net of income taxes	0	0	147
Other comprehensive income (loss), net of income taxes	(1,125)	1,134	873
Comprehensive income	$ 651,859	$ 356,900	$ 351,031

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