Condensed Consolidated Statements of Stockholder's Equity - USD ($) $ in Thousands	Total		Common stock	Additional paid-in capital	Accumulated other comprehensive income	Retained earnings
Beginning balance at Dec. 31, 2015	$ 1,882,266		$ 7,233	$ 840,874	$ 233,438	$ 800,721
Increase (Decrease) in Stockholder's Equity
Net income	98,626					98,626
Other comprehensive income, net of income taxes	226,553	[1]			226,553
Dividends	(73,401)					(73,401)
Capital contribution - stock-based compensation	534			534
Income tax benefit on stock-based compensation	141			141
Ending balance at Mar. 31, 2016	2,134,719		7,233	841,549	459,991	825,946
Beginning balance at Dec. 31, 2016	2,012,321		7,293	863,031	235,875	906,122
Increase (Decrease) in Stockholder's Equity
Net income	34,830					34,830
Other comprehensive income, net of income taxes	63,979	[1]			63,979
Dividends	(77,000)					(77,000)
Capital contribution - stock-based compensation	420			420
Ending balance at Mar. 31, 2017	$ 2,034,550		$ 7,293	$ 863,451	$ 299,854	$ 863,952

[1] Other comprehensive income includes the non-credit component of impaired gains (losses), net, on fixed maturities available-for-sale in the amounts of $(1,089) and $(1,895) for the three months ended March 31, 2017, and 2016, respectively