Accounting Pronouncements (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred acquisition costs	$ 132,206		$ 132,206		$ 124,542
Deferred federal income taxes	17,545		17,545		13,940
Accumulated deficit	(17,025)		(17,025)		(21,851)
Capitalization of deferred policy acquisition costs	(7,547)	(6,531)	(20,530)	(20,536)
Amortization of deferred policy acquisition costs	4,134	4,171	12,693	12,480
Federal income tax expense	1,134	729	1,651	2,967
Net income	2,911	2,053	4,826	6,684
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred acquisition costs					136,300
Deferred federal income taxes					18,055
Accumulated deficit					(14,208)
Capitalization of deferred policy acquisition costs		(7,121)		(22,170)
Amortization of deferred policy acquisition costs		4,500		13,249
Federal income tax expense		820		3,270
Net income		2,223		7,246
Impact of Change in Accounting Principle [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred acquisition costs					(11,758)
Deferred federal income taxes					(4,115)
Accumulated deficit					(7,643)
Capitalization of deferred policy acquisition costs		590		1,634
Amortization of deferred policy acquisition costs		(329)		(769)
Federal income tax expense		(91)		(303)
Net income		$ (170)		$ (562)
Common Class A [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Basic earnings per share	$ 0.06	$ 0.04	$ 0.10	$ 0.13
Diluted earnings per share	$ 0.06	$ 0.04	$ 0.10	$ 0.13
Common Class A [Member] | Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Basic earnings per share		$ 0.05		$ 0.15
Diluted earnings per share		$ 0.05		$ 0.15
Common Class A [Member] | Impact of Change in Accounting Principle [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Basic earnings per share		$ (0.01)		$ (0.02)
Diluted earnings per share		$ (0.01)		$ (0.02)