Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 78,764	$ 97,872
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Change in future policy benefits and other policy liabilities	75,770	122,881
Deferral of policy acquisition costs	(130,881)	(142,297)
Amortization of deferred policy acquisition costs	86,063	66,105
Change in income taxes	4,725	25,497
Investment (gains) losses	(751)	(1,766)
Accretion and amortization of investments	1,356	1,112
Depreciation and amortization	8,688	5,408
Change in reinsurance recoverables	31,582	(67,301)
Change in agent balances, due premiums and other receivables	2,245	(3,725)
Change in renewal commissions receivable	18,576	(859)
Trading securities sold, matured, or called (acquired), net	11,273	(18,923)
Share-based compensation	12,437	11,653
Change in other operating assets and liabilities, net	14,452	23,801
Net cash provided by (used in) operating activities	214,299	119,458
Available-for-sale investments sold, matured or called:
Fixed-maturity securities — sold	1,227	10,810
Fixed-maturity securities — matured or called	96,336	94,576
Short-term investments — matured or called	41,550
Equity securities — matured or called	3,000
Available-for-sale investments acquired:
Fixed-maturity securities	(250,932)	(247,253)
Short-term investments		(50,902)
Equity securities — acquired	(44)	(291)
Purchases of property and equipment and other investing activities, net	(7,676)	(10,182)
Cash collateral received (returned) on loaned securities, net	(1,358)	15,036
Sales (purchases) of short-term investments using securities lending collateral, net	1,358	(15,036)
Purchase of business, net of cash acquired	3,867
Net cash provided by (used in) investing activities	(112,672)	(203,242)
Cash flows from financing activities:
Dividends paid	(21,645)	(18,620)
Common stock repurchased	(99,010)
Payment on note issued to seller of business	(9,000)
Tax withholdings on share-based compensation	(4,852)	(5,966)
Finance leases	(64)	(66)
Net cash provided by (used in) financing activities	(134,571)	(24,652)
Effect of foreign exchange rate changes on cash	222	811
Change in cash and cash equivalents	(32,722)	(107,625)
Cash and cash equivalents, beginning of period	392,501	547,569
Cash and cash equivalents, end of period	$ 359,779	$ 439,944