Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income before noncontrolling interests	$ 417,349	$ 442,035
Other comprehensive income (loss):
Change in unrealized currency translation adjustments	23,930	(27,570)
Change in unrealized investment gains (losses), net of taxes	148,273	(70,122)
Other comprehensive income (loss)	172,203	(97,692)
Comprehensive income	589,552	344,343
Noncontrolling interests	223	436
Comprehensive income to common stockholders	$ 589,775	$ 344,779