Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash provided from (used for) operating activities:
Cash provided from (used for) operating activities	$ 686,637	$ 616,520
Cash provided from (used for) investing activities:
Fixed maturities available for sale—sold	34,997	0
Fixed maturities available for sale—matured or other redemptions	440,796	179,793
Other long-term investments	0	23
Total investments sold or matured	475,793	179,816
Acquisition of investments:
Fixed maturities—available for sale	(703,406)	(540,442)
Other long term investments	(80,979)	(64,444)
Total investments acquired	(784,385)	(604,886)
Net increase (decrease) in policy loans	(10,403)	(8,279)
Net increase (decrease) in short-term investments	(1,806)	58,527
Additions to properties	(21,654)	(18,735)
Dispositions of properties	15	17
Investment in low-income housing interests	(13,916)	(15,701)
Cash provided from (used for) investing activities	(356,356)	(409,241)
Cash provided from (used for) financing activities:
Issuance of common stock	39,598	21,352
Cash dividends paid to shareholders	(36,652)	(35,406)
Repayment of debt	(3,125)	(21,875)
Net borrowing (repayment) of commercial paper	(51,645)	50,213
Acquisition of treasury stock	(230,097)	(206,589)
Net receipts (payments) from deposit product	(74,217)	(58,662)
Cash provided from (used for) financing activities	(356,138)	(250,967)
Effect of foreign exchange rate changes on cash	(5,850)	7,355
Net increase (decrease) in cash	(31,707)	(36,333)
Cash at beginning of year	121,026	118,563
Cash at end of period	$ 89,319	$ 82,230