Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Revision of Prior Period, Accounting Standards Update, Adjustment [Member]	Previously Reported [Member]	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member] Previously Reported [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member] Revision of Prior Period, Accounting Standards Update, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Previously Reported [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect, Period of Adoption, Adjustment [Member] Revision of Prior Period, Accounting Standards Update, Adjustment [Member]	Redeemable Noncontrolling Interests in Consolidated Entities/Temporary Stockholders' Equity [Member]
Balance, beginning of period at Dec. 31, 2020				$ 393		$ 1,682,939	$ 1,705,786	$ (22,847)	$ (1,380,916)	$ 129,706	$ (1,510,622)
Repurchases of common stock				(1)
Redemption of noncontrolling interest in consolidated entities					$ 25,817
Share-based compensation					31,043
Net issuance of common stock				2	(2)
Net Income (Loss)	$ 477,362	$ 104,005	$ 373,357			477,362
Dividends						(74,636)
Change in foreign currency translation adjustment, net of income taxes									6,969
Acquisition of noncontrolling interest												$ 8,438
Net loss attributable to noncontrolling interests	(1,377)		(1,377)									(1,377)
Changes in noncontrolling interests in consolidated entities, net												210
Change in net unrealized investment gains (losses)during the period, net of income taxes									(64,351)
Effect of change in discount rate assumptions on the liability for future policy benefits, net of income taxes									272,442
Balance, end of period at Dec. 31, 2021	$ 925,427			394	5,224	2,085,665	2,085,665		(1,165,856)	(1,165,856)		7,271
Dividends declared per share	$ 1.88
Repurchases of common stock				(28)	(41,079)	(320,333)
Redemption of noncontrolling interest in consolidated entities					2,233							(2,233)
Share-based compensation					33,624
Net issuance of common stock				2	(2)
Net Income (Loss)	$ 472,068	$ 99,056	373,012			472,068
Dividends						(83,783)
Change in foreign currency translation adjustment, net of income taxes									(20,826)
Net loss attributable to noncontrolling interests	$ (5,038)		(5,038)									$ (5,038)
Change in net unrealized investment gains (losses)during the period, net of income taxes									(304,645)
Accounting Standards Update [Extensible Enumeration]	us-gaap:AccountingStandardsUpdate201812Member	us-gaap:AccountingStandardsUpdate201812Member						us-gaap:AccountingStandardsUpdate201812Member			us-gaap:AccountingStandardsUpdate201812Member
Effect of change in discount rate assumptions on the liability for future policy benefits, net of income taxes									1,368,596
Balance, end of period at Dec. 31, 2022	$ 2,031,254	$ 309,755	1,721,499	368		2,153,617	$ 2,153,617		(122,731)	$ (122,731)
Dividends declared per share	$ 2.20
Cumulative effect from the adoption of new accounting standards, net at Dec. 31, 2022	$ 2,153,617	$ 180,214	$ 1,973,403
Repurchases of common stock				(21)	(32,127)	(359,557)
Share-based compensation					32,130
Net issuance of common stock				3	$ (3)
Net Income (Loss)	$ 576,601					576,601
Dividends						(93,715)
Change in foreign currency translation adjustment, net of income taxes									10,044
Change in net unrealized investment gains (losses)during the period, net of income taxes									70,860
Accounting Standards Update [Extensible Enumeration]	us-gaap:AccountingStandardsUpdate201812Member
Effect of change in discount rate assumptions on the liability for future policy benefits, net of income taxes									(169,502)
Balance, end of period at Dec. 31, 2023	$ 2,065,967			$ 350		$ 2,276,946			$ 211,329
Dividends declared per share	$ 2.60