Condensed 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
Beginning balance at Dec. 31, 2012	$ 2,136,297		$ 7,032	$ 771,041	$ 635,699	$ 722,525
Increase (Decrease) in Stockholder's Equity
Net income	134,753					134,753
Other comprehensive income (loss), net of income taxes	(361,381)	[1]			(361,381)
Dividends	(90,936)					(90,936)
Capital contribution - stock-based compensation	1,928			1,928
Income tax benefit on stock-based compensation	110			110
Ending balance at Sep. 30, 2013	1,820,771		7,032	773,079	274,318	766,342
Beginning balance at Dec. 31, 2013	1,875,732		7,032	774,115	345,754	748,831
Increase (Decrease) in Stockholder's Equity
Net income	230,205					230,205
Other comprehensive income (loss), net of income taxes	235,152	[1]			235,152
Dividends	(178,401)					(178,401)
Capital contribution - stock-based compensation	2,812			2,812
Income tax benefit on stock-based compensation	47			47
Ending balance at Sep. 30, 2014	$ 2,165,547		$ 7,032	$ 776,974	$ 580,906	$ 800,635

[1] Other comprehensive income (loss) includes the non-credit component of impaired gains (losses) on fixed maturities available-for-sale in the amounts of $(996) and $3,173 for the three months ended September 30, 2014 and 2013, respectively, and $(3,812) and $9,818 for the nine months ended September 30, 2014 and 2013, respectively.