Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interests	$ 179,467	$ 237,678	$ 772,496	$ 469,394
Other comprehensive (loss) income:
Change in unrealized currency translation adjustments	(43,393)	2,537	12,879	6,587
Change in unrealized investment (losses) gains, net of taxes	(337,008)	23,272	(760,553)	(66,858)
Other comprehensive (loss) income	(380,401)	25,809	(747,674)	(60,271)
Comprehensive (loss) income	(200,934)	263,487	24,822	409,123
Noncontrolling interests	(145)	(439)	(2,535)	(2,630)
Comprehensive (loss) income to common stockholders	$ (201,079)	$ 263,048	$ 22,287	$ 406,493