Consolidated Statements of Stockholder's Equity (USD $) In Thousands, unless otherwise specified	Total		Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Retained earnings
Balances at Dec. 31, 2011	$ 1,914,073		$ 7,032	$ 768,247	$ 469,982	$ 668,812
Increase (Decrease) in Stockholder's Equity
Net income	238,114					238,114
Other comprehensive income, net of income taxes	165,717	[1]			165,717
Dividends	(184,401)					(184,401)
Capital contribution - stock-based compensation	2,314			2,314
Income tax benefit on stock-based compensation	480			480
Balances at Dec. 31, 2012	2,136,297		7,032	771,041	635,699	722,525
Increase (Decrease) in Stockholder's Equity
Net income	128,742					128,742
Other comprehensive income, net of income taxes	(289,945)	[1]			(289,945)
Dividends	(102,436)					(102,436)
Capital contribution - stock-based compensation	2,578			2,578
Income tax benefit on stock-based compensation	496			496
Balances at Dec. 31, 2013	1,875,732		7,032	774,115	345,754	748,831
Increase (Decrease) in Stockholder's Equity
Net income	317,369					317,369
Other comprehensive income, net of income taxes	257,264	[1]			257,264
Dividends	(316,401)					(316,401)
Capital contribution - stock-based compensation	3,384			3,384
Income tax benefit on stock-based compensation	165			165
Balances at Dec. 31, 2014	$ 2,137,513		$ 7,032	$ 777,664	$ 603,018	$ 749,799

[1] Other comprehensive income (loss) includes the non-credit component of impaired losses on fixed maturities available-for-sale, net of future policy benefits, DAC and VOBA adjustments and income taxes, in the amounts of $177, $18,388 and $26,583 for the years ended December 31, 2014, 2013 and 2012, respectively.