Investments (Net Unrealized Investment Gains and Losses on Fixed Maturity Securities on which an OTTI loss) (Details) (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Accumulated Net Unrealized Investment Gain (Loss) Pre Tax [Member] Securities Related to Other Than Temporary Impairments [Member]		Sep. 30, 2013 Deferred Costs Policy Acquisition And Sales Inducements And Valuation Of Business Acquired, Pre Tax [Member] Securities Related to Other Than Temporary Impairments [Member]		Sep. 30, 2013 Policyholders Account Balances Pre Tax [Member] Securities Related to Other Than Temporary Impairments [Member]		Sep. 30, 2013 Deferred Income Tax Liability Benefit [Member] Securities Related to Other Than Temporary Impairments [Member]		Sep. 30, 2013 Accumulated Net Unrealized Investment Gain (Loss) [Member] Securities Related to Other Than Temporary Impairments [Member]
Balance	$ 78,009	$ 267,461	$ (618)		$ 295		$ 563		$ (115)		$ 125
Net investment gains (losses) on investments arising during the period			337		0		0		(118)		219
Reclassification adjustment for (gains) losses included in net income			3,784		0		0		(1,325)		2,459
Reclassification adjustment for OTTI losses excluded from net income			(51)	[1]	0	[1]	0	[1]	18	[1]	(33)	[1]
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs			0		(2,131)		0		746		(1,385)
Impact of net unrealized investment (gains) losses on policyholders' account balance			0		0		160		(56)		104
Balance	$ 78,009	$ 267,461	$ 3,452		$ (1,836)		$ 723		$ (850)		$ 1,489

[1] _____________ Represents “transfers in” related to the portion of OTTI losses recognized during the period that were not recognized in earnings for securities with no prior OTTI loss.