Reserves (Schedule Of Most Significant Claims And Benefits Payable) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross of reinsurance, beginning balance		$ 3,698,606
Paid losses related to:
Gross of reinsurance, ending balance		3,896,719		$ 3,698,606
Net retained credit life and disability claims and benefits payable		33,852		45,096		$ 54,483
Group Term Life
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross of reinsurance, beginning balance	[1]	194,383		199,771		203,757
Less: Reinsurance ceded and other	[2]	(2,750)		(3,409)		(2,463)
Gross of reinsurance, beginning balance, including reclassifications of assets held for sale	[1]			197,792
Less: Reinsurance ceded and other, including reclassifications of assets held for sale	[2]			(3,409)		(2,463)		$ (2,817)
Net of reinsurance, beginning balance		194,383		197,308		200,940
Incurred losses related to:
Incurred losses, current year		132,330		124,228		121,708
Incurred losses, prior year's interest		7,317		7,548		7,773
Incurred losses, prior year(s)		(17,513)		(16,560)		(14,300)
Total incurred losses		122,134		115,216		115,181
Paid losses related to:
Paid losses, current year		82,847		77,113		75,119
Paid losses, prior year(s)		38,643		41,028		43,694
Total paid losses		121,490		118,141		118,813
Net of reinsurance, ending balance before held for sale reclassification	[1]	195,027
Net of reinsurance, ending balance				194,383		197,308
Plus: Reinsurance ceded and other	[2]	2,750		3,409		2,463
Gross of reinsurance	[1]					197,308
Gross of reinsurance, ending balance	[1]	197,777		194,383		199,771
Group Disability
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross of reinsurance, beginning balance	[1]	1,193,415		1,271,851		1,309,087
Less: Reinsurance ceded and other	[2]	(41,658)		(41,614)		(38,990)
Gross of reinsurance, beginning balance, including reclassifications of assets held for sale	[1]			1,235,029
Less: Reinsurance ceded and other, including reclassifications of assets held for sale	[2]			(41,614)		(38,990)		(38,166)
Net of reinsurance, beginning balance		1,193,415		1,232,861		1,270,921
Incurred losses related to:
Incurred losses, current year		264,077		285,095		284,005
Incurred losses, prior year's interest		51,798		53,657		56,705
Incurred losses, prior year(s)		(18,540)		(36,003)		(29,975)
Total incurred losses		297,335		302,749		310,735
Paid losses related to:
Paid losses, current year		76,000		80,172		70,236
Paid losses, prior year(s)		263,412		262,023		278,559
Total paid losses		339,412		342,195		348,795
Net of reinsurance, ending balance before held for sale reclassification	[1]	1,151,338
Net of reinsurance, ending balance				1,193,415		1,232,861
Plus: Reinsurance ceded and other	[2]	41,658		41,614		38,990
Gross of reinsurance	[1]					1,232,861
Gross of reinsurance, ending balance	[1]	1,192,996		1,193,415		1,271,851
Short Duration Medical
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross of reinsurance, beginning balance	[1],[3]	362,997		222,182		247,758
Less: Reinsurance ceded and other	[2],[3]	(93,030)		(15,203)		(14,978)
Gross of reinsurance, beginning balance, including reclassifications of assets held for sale	[1],[3]			378,200
Less: Reinsurance ceded and other, including reclassifications of assets held for sale	[2],[3]			(15,203)		(14,978)		(16,447)
Net of reinsurance, beginning balance		362,997	[3]	207,204	[3]	231,311
Incurred losses related to:
Incurred losses, current year	[3]	2,404,632		1,782,891		1,097,313
Incurred losses, prior year's interest	[3]	0		0		0
Incurred losses, prior year(s)	[3]	(36,795)		(51,352)		(42,063)
Total incurred losses		2,367,837	[3]	1,731,539		1,055,250	[3]
Paid losses related to:
Paid losses, current year	[3]	2,016,726		1,424,448		894,533
Paid losses, prior year(s)	[3]	318,327		151,298		184,824
Total paid losses		2,335,053	[3]	1,575,746		1,079,357	[3]
Net of reinsurance, ending balance before held for sale reclassification	[1],[3]	395,781
Net of reinsurance, ending balance	[3]			362,997		207,204
Plus: Reinsurance ceded and other	[2],[3]	93,030		15,203		14,978
Gross of reinsurance	[1],[3]					207,204
Gross of reinsurance, ending balance	[1],[3]	488,811		362,997		222,182
Long Duration Medical
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross of reinsurance, beginning balance	[1],[3]	9,399		13,639		16,847
Less: Reinsurance ceded and other	[2],[3]	(161)		(446)		(618)
Gross of reinsurance, beginning balance, including reclassifications of assets held for sale	[1],[3]			9,845
Less: Reinsurance ceded and other, including reclassifications of assets held for sale	[2],[3]			(446)		(618)		(736)
Net of reinsurance, beginning balance		9,399	[3]	13,021	[3]	16,111
Incurred losses related to:
Incurred losses, current year	[3]	80,845		128,093		110,933
Incurred losses, prior year's interest	[3]	0		0		0
Incurred losses, prior year(s)	[3]	(2,483)		(4,044)		(3,971)
Total incurred losses		78,362	[3]	124,049		106,962	[3]
Paid losses related to:
Paid losses, current year	[3]	77,427		118,842		98,183
Paid losses, prior year(s)	[3]	6,709		8,829		11,869
Total paid losses		84,136	[3]	127,671		110,052	[3]
Net of reinsurance, ending balance before held for sale reclassification	[1],[3]	3,625
Net of reinsurance, ending balance	[3]			9,399		13,021
Plus: Reinsurance ceded and other	[2],[3]	161		446		618
Gross of reinsurance	[1],[3]					13,021
Gross of reinsurance, ending balance	[1],[3]	3,786		9,399		13,639
Property and Warranty
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross of reinsurance, beginning balance	[1]	496,655		639,224		1,167,058
Less: Reinsurance ceded and other	[2]	(200,719)		(180,841)		(183,315)
Gross of reinsurance, beginning balance, including reclassifications of assets held for sale	[1]			677,496
Less: Reinsurance ceded and other, including reclassifications of assets held for sale	[2]			(180,841)		(229,038)		$ (715,058)
Net of reinsurance, beginning balance		496,655		410,186		452,000
Incurred losses related to:
Incurred losses, current year		1,105,991		1,401,187		1,140,500
Incurred losses, prior year's interest		0		0		0
Incurred losses, prior year(s)		(43,619)		(2,848)		(23,801)
Total incurred losses		1,062,372		1,398,339		1,116,699
Paid losses related to:
Paid losses, current year		752,752		988,075		802,130
Paid losses, prior year(s)		317,589		323,795		310,660
Total paid losses		1,070,341		1,311,870		1,112,790
Net of reinsurance, ending balance before held for sale reclassification	[1]	488,686
Net of reinsurance, ending balance				496,655		410,186
Plus: Reinsurance ceded and other	[2]	200,719		180,841		183,315
Gross of reinsurance	[1]					455,909
Gross of reinsurance, ending balance	[1]	$ 689,405		$ 496,655		$ 639,224

[1] The Company’s net retained credit life and disability claims and benefits payable were $33,852, $45,096 and $54,483 at December 31, 2015, 2014 and 2013.

[2] Reinsurance ceded and other includes claims and benefits payable balances that have either been (a) reinsured to third parties, (b) established for claims related expenses whose subsequent payment is not recorded as a paid claim, or (c) reserves established for obligations that would persist even if contracts were cancelled (such as extension of benefits), which cannot be analyzed appropriately under a roll-forward approach.

[3] Short duration and long duration medical methodologies used for settling claims and benefits payable are similar.