Fair Value of Assets and Liabilities (Changes in Level 3 Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Equity Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	$ 0				$ 0
Included In Earnings
Realized investment gains (losses), net	0				0
Asset management fees and other income - Assets1	0				0
Included in other comprehensive income (loss)	0				0
Net investment income1	0				1
Purchases	192				0
Sales	0				(747)
Issuances	0				0
Settlements	0				0
Other	0	[1]			(230)	[1]
Transfers into Level 3	0	[2]			976	[2]
Transfers out of Level 3	0	[2]			0	[2]
Fair Value, end of period (Assets)	192				0
Included In Earnings
Realized investment gains (losses), net	0	[3]			0	[3]
Asset management fees and other income	0	[3]			0	[3]
Debt Securities [Member] | Corporate Debt Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	95,555		89,658		74,255
Included In Earnings
Realized investment gains (losses), net	49		1,606		46
Asset management fees and other income - Assets1	0		0		0
Included in other comprehensive income (loss)	(4,179)		2,271		5,472
Net investment income1	4,729		4,634		4,579
Purchases	4,817		5,400		8,702
Sales	0		(29)		0
Issuances	0		0		0
Settlements	(4,629)		(8,286)		(5,356)
Other	0	[1]			0	[1]
Transfers into Level 3	4,976	[2]	11,992	[2]	51,135	[2]
Transfers out of Level 3	(4,522)	[2]	(11,691)	[2]	(49,175)	[2]
Fair Value, end of period (Assets)	96,796		95,555		89,658
Included In Earnings
Realized investment gains (losses), net	0	[3]	0	[3]	0	[3]
Asset management fees and other income	0	[3]	0	[3]	0	[3]
Debt Securities [Member] | Asset-backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	69,298		48,563		53,857
Included In Earnings
Realized investment gains (losses), net	0		0		0
Asset management fees and other income - Assets1	0		0		0
Included in other comprehensive income (loss)	(470)		1,109		206
Net investment income1	454		649		430
Purchases	40,868		30,311		0
Sales	0		0		0
Issuances	0		0		0
Settlements	(13,924)		(11,334)		(5,930)
Other	(2,996)	[1]			0	[1]
Transfers into Level 3	0	[2]	0	[2]	0	[2]
Transfers out of Level 3	(29,441)	[2]	0	[2]	0	[2]
Fair Value, end of period (Assets)	63,789		69,298		48,563
Included In Earnings
Realized investment gains (losses), net	0	[3]	0	[3]	0	[3]
Asset management fees and other income	0	[3]	0	[3]	0	[3]
Debt Securities [Member] | Commercial Mortgage Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	0
Included In Earnings
Realized investment gains (losses), net	0
Asset management fees and other income - Assets1	0
Included in other comprehensive income (loss)	18
Net investment income1	0
Purchases	17,169
Sales	0
Issuances	0
Settlements	0
Other	0	[1]
Transfers into Level 3	0	[2]
Transfers out of Level 3	(17,187)	[2]
Fair Value, end of period (Assets)	0
Included In Earnings
Realized investment gains (losses), net	0	[3]
Asset management fees and other income	0	[3]
Other Long-term Investments [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	1,054		1,213		0
Included In Earnings
Realized investment gains (losses), net	(739)		(2,326)		(1,285)
Asset management fees and other income - Assets1	60		(3)		(19)
Included in other comprehensive income (loss)	0		0		0
Net investment income1	0		0		0
Purchases	111		2,166		262
Sales	0		0		0
Issuances	0		0		0
Settlements	0		4		0
Other	0	[1]			0	[1]
Transfers into Level 3	0	[2]	0	[2]	2,255	[2]
Transfers out of Level 3	0	[2]	0	[2]	0	[2]
Fair Value, end of period (Assets)	486		1,054		1,213
Included In Earnings
Realized investment gains (losses), net	0	[3]	(1,349)	[3]	(1,311)	[3]
Asset management fees and other income	51	[3]	(3)	[3]	(19)	[3]
Trading Asset [Member] | Equity Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	207		203		0
Included In Earnings
Realized investment gains (losses), net	0		0		0
Asset management fees and other income - Liabilities					(27)
Asset management fees and other income - Assets1	106		4
Included in other comprehensive income (loss)	0		0		0
Net investment income1	0		0		0
Purchases	0		0		0
Sales	0		0		0
Issuances	0		0		0
Settlements	0		0		0
Other	0	[1]			230	[1]
Transfers into Level 3	0	[2]	0	[2]	0	[2]
Transfers out of Level 3	0	[2]	0	[2]	0	[2]
Fair Value, end of period (Assets)	313		207		203
Included In Earnings
Realized investment gains (losses), net	0	[3]	0	[3]	0	[3]
Asset management fees and other income	107	[3]	4	[3]	(27)	[3]
Future Policy Benefits [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, Beginning of period (Liabilities)	1,793,137		1,783,595		164,283
Included In Earnings
Realized investment gains (losses), net	1,262,310		230,349		(1,396,276)
Asset management fees and other income - Liabilities	0		0
Asset management fees and other income - Assets1					0
Included in other comprehensive income (loss)	0		0		0
Net investment income1	0		0		0
Purchases	0		0		0
Sales	0		0		(223,036)
Issuances	(247,399)		(239,891)		0
Settlements	0		0		0
Other	0	[1]
Transfers into Level 3	0	[2]	0	[2]	0	[2]
Transfers out of Level 3	0	[2]	0	[2]	0	[2]
Fair Value, End of Period (Liabilities)	778,226		1,793,137		1,783,595
Included In Earnings
Realized investment gains (losses), net	1,207,600	[3]	179,477	[3]	(1,403,609)	[3]
Asset management fees and other income	0	[3]	0	[3]	0	[3]
Reinsurance Recoverable [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	1,732,094		1,747,757		186,735
Included In Earnings
Realized investment gains (losses), net	(1,220,073)		(244,519)		1,348,271
Asset management fees and other income - Assets1	0		0		0
Included in other comprehensive income (loss)	0		0		0
Net investment income1	0		0		0
Purchases	235,984		228,856		212,751
Sales	0		0		0
Issuances	0		0		0
Settlements	0		0		0
Other	0	[1]			0	[1]
Transfers into Level 3	0	[2]	0	[2]	0	[2]
Transfers out of Level 3	0	[2]	0	[2]	0	[2]
Fair Value, end of period (Assets)	748,005		1,732,094		1,747,757
Included In Earnings
Realized investment gains (losses), net	(1,166,676)	[3]	(194,274)	[3]	1,356,358	[3]
Asset management fees and other income	0	[3]	0	[3]	0	[3]
Receivables From Parents And Affiliates [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair Value, beginning of period (Assets)	1,995		0
Included In Earnings
Realized investment gains (losses), net	0		0
Asset management fees and other income - Assets1	0		0
Included in other comprehensive income (loss)	99		(5)
Net investment income1	0		0
Purchases	6,250		2,000
Sales	(2,996)		0
Issuances	0		0
Settlements	0		0
Other	2,996	[1]
Transfers into Level 3	0	[2]	0	[2]
Transfers out of Level 3	(1,997)	[2]	0	[2]
Fair Value, end of period (Assets)	6,347		1,995
Included In Earnings
Realized investment gains (losses), net	0	[3]	0	[3]
Asset management fees and other income	$ 0	[3]	$ 0	[3]

[1]   (3) “Other” primarily represents reclasses of certain assets between reporting categories.

[2]   (1) Transfers into or out of Level 3 are generally reported as the value as of the beginning of the quarter in which the transfer occurs.

[3]   (2) Unrealized gains or losses related to assets still held at the end of the period do not include amortization or accretion of premiums and discounts. (3) “Other” primarily represents reclasses of certain assets between reporting categories.