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, 2014	$ 2,137,513		$ 7,032	$ 777,664	$ 603,018	$ 749,799
Increase (Decrease) in Stockholder's Equity
Net income (loss)	91,598					91,598
Other comprehensive income (loss), net of income taxes	(193,647)	[1]			(193,647)
Dividends	(112,110)					(112,110)
Capital contribution - stock-based compensation	781			781
Income tax benefit on stock-based compensation	594			594
Ending balance at Jun. 30, 2015	1,924,729		7,032	779,039	409,371	729,287
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 (loss)	172,421					172,421
Other comprehensive income (loss), net of income taxes	406,149	[1]			406,149
Dividends	(104,831)					(104,831)
Capital contribution - stock-based compensation	1,059			1,059
Income tax benefit on stock-based compensation	405			405
Ending balance at Jun. 30, 2016	$ 2,357,469		$ 7,233	$ 842,338	$ 639,587	$ 868,311

[1] Other comprehensive income (loss) includes the non-credit component of impaired gains (losses), net, on fixed maturities available-for-sale in the amounts of $(2,472) and $1,314 for the three months ended June 30, 2016, and 2015, respectively, and $(4,367) and $(1,229) for the six months ended June 30, 2016, and 2015, respectively.