Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interests	$ 400,708	$ 371,885	$ 818,058	$ 813,920
Other comprehensive income (loss):
Change in unrealized currency translation adjustments	69,418	3,227	93,348	(24,343)
Change in unrealized investment gains (losses), net of taxes	120,265	(13,338)	268,538	(83,460)
Other comprehensive income (loss)	189,683	(10,111)	361,886	(107,803)
Comprehensive income	590,391	361,774	1,179,944	706,117
Noncontrolling interests	580	23	803	459
Comprehensive income to common stockholders	$ 590,971	$ 361,797	$ 1,180,747	$ 706,576