Accumulated Other Comprehensive (Loss) Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 1,894,615,000	$ 1,865,494,000	$ 1,892,611,000	$ 1,967,732,000
Ending balance	1,862,682,000	1,794,196,000	1,862,682,000	1,794,196,000
Other comprehensive loss reclassifications	0	0	0	0
Accumulated other comprehensive loss
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(81,336,000)	(59,431,000)	(85,373,000)	(57,222,000)
Other comprehensive income	1,755,000		5,792,000
Ending balance	(79,581,000)	$ (83,696,000)	(79,581,000)	$ (83,696,000)
Unrealized Gains (Losses) on Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	765,000		441,000
Other comprehensive income	(713,000)		(389,000)
Ending balance	52,000		52,000
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(82,101,000)		(85,814,000)
Other comprehensive income	2,468,000		6,181,000
Ending balance	$ (79,633,000)		$ (79,633,000)