Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interests	$ 295,729	$ 593,030
Other comprehensive income (loss):
Change in unrealized currency translation adjustments	4,866	56,272
Change in unrealized investment gains (losses), net of taxes	180,799	(423,545)
Other comprehensive income (loss)	185,665	(367,273)
Comprehensive income	481,394	225,757
Noncontrolling interests	(1,602)	(2,391)
Comprehensive income to common stockholders	$ 479,792	$ 223,366