Stockholders' Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Accumulated other comprehensive income
Balance	$ 4,338,581	$ 4,476,232	$ 4,605,696	$ 4,830,869	$ 4,919,063	$ 1,466,919	$ 4,605,696	$ 1,466,919
Net-of-Tax Amount	(6,036)	(10,527)	(16,930)	(2,372)	(1,386)	(1,031)
Balance	4,223,576	4,338,581	4,476,232	4,706,889	4,830,869	4,919,063	4,223,576	4,706,889
AOCI attributable to parent
Accumulated other comprehensive income
Balance	(28,989)		$ (1,532)	34		$ 2,451	(1,532)	2,451
Balance	(35,025)	$ (28,989)		(2,338)	$ 34		(35,025)	(2,338)
Net unrealized loss on available-for-sale securities
Accumulated other comprehensive income
Total Pre-Tax Amount	(4,992)			(2,200)			(23,401)	(4,075)
Net-of-Tax Amount	(4,992)			(2,200)			(23,401)	(4,075)
Foreign currency translation loss
Accumulated other comprehensive income
Total Pre-Tax Amount	(1,044)			(172)			(10,092)	(714)
Net-of-Tax Amount	$ (1,044)			$ (172)			$ (10,092)	$ (714)