Investments (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of Unrealized Gains On Investments



($ in thousands)	2016			2015		2014
AFS securities:
Fixed income securities	$	38,781		55,689		90,336
Equity securities	25,864			13,235		32,389
Total AFS securities	64,645			68,924		122,725

HTM securities:
Fixed income securities	159			300		958
Total HTM securities	159			300		958

Total net unrealized gains	64,804			69,224		123,683
Deferred income tax expense	(22,681		)	(24,228	)	(43,289	)
Net unrealized gains, net of deferred income tax	42,123			44,996		80,394

(Decrease) increase in net unrealized gains in OCI, net of deferred income tax	$	(2,873	)	(35,398	)	28,890

Schedule of Held-to-maturity Securities



December 31, 2016			Net
			Unrealized			Unrecognized	Unrecognized
	Amortized		Gains		Carrying	Holding	Holding		Fair
($ in thousands)	Cost		(Losses)		Value	Gains	Losses		Value
Obligations of state and political subdivisions	$	77,466	317		77,783	2,133	—		79,916
Corporate securities	22,711		(143	)	22,568	1,665	(158	)	24,075
CMBS	1,220		(15	)	1,205	15	—		1,220
Total HTM fixed income securities	$	101,397	159		101,556	3,813	(158	)	105,211



December 31, 2015			Net
			Unrealized			Unrecognized	Unrecognized
	Amortized		Gains		Carrying	Holding	Holding	Fair
($ in thousands)	Cost		(Losses)		Value	Gains	Losses	Value
Obligations of state and political subdivisions	175,269		848		176,117	5,763	—	181,880
Corporate securities	20,228		(185	)	20,043	1,972	—	22,015
CLO and other ABS	1,030		(120	)	910	118	—	1,028
CMBS	4,527		(243	)	4,284	337	—	4,621
Total HTM fixed income securities	$	201,054	300		201,354	8,190	—	209,544

Schedule of Available For Sale Securities



December 31, 2016
	Cost/
	Amortized		Unrealized	Unrealized		Fair
($ in thousands)	Cost		Gains	Losses		Value
AFS fixed income securities:
U.S. government and government agencies	$	75,139	2,230	(36	)	77,333
Foreign government	26,559		322	(16	)	26,865
Obligations of states and political subdivisions	1,366,287		18,610	(5,304	)	1,379,593
Corporate securities	1,976,556		27,057	(5,860	)	1,997,753
CLO and other ABS	527,876		1,439	(355	)	528,960
CMBS	256,356		1,514	(1,028	)	256,842
RMBS	524,986		3,006	(2,798	)	525,194
Total AFS fixed income securities	4,753,759		54,178	(15,397	)	4,792,540
AFS equity securities:
Common stock	104,663		26,250	(305	)	130,608
Preferred stock	16,226		274	(355	)	16,145
Total AFS equity securities	120,889		26,524	(660	)	146,753
Total AFS securities	$	4,874,648	80,702	(16,057	)	4,939,293



December 31, 2015
	Cost/
	Amortized		Unrealized	Unrealized		Fair
($ in thousands)	Cost		Gains	Losses		Value
AFS fixed income securities:
U.S. government and government agencies	$	99,485	4,721	(91	)	104,115
Foreign government	14,885		298	(2	)	15,181
Obligations of states and political subdivisions	1,314,779		44,523	(160	)	1,359,142
Corporate securities	1,892,296		23,407	(15,521	)	1,900,182
CLO and other ABS	244,541		531	(918	)	244,154
CMBS	245,252		750	(2,410	)	243,592
RMBS	541,276		4,274	(3,713	)	541,837
Total AFS fixed income securities	4,352,514		78,504	(22,815	)	4,408,203
AFS equity securities:
Common stock	181,991		14,796	(1,998	)	194,789
Preferred stock	11,825		477	(40	)	12,262
Total AFS equity securities	193,816		15,273	(2,038	)	207,051
Total AFS securities	$	4,546,330	93,777	(24,853	)	4,615,254

Schedule of Fair Value and Gross Pre-Tax Net Unrealized/Unrecognized Loss of Securities by Length of Time



December 31, 2016	Less than 12 months				12 months or longer			Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
AFS fixed income securities:
U.S. government and government agencies	$	6,419	(36	)	—	—		6,419	(36	)
Foreign government	13,075		(16	)	—	—		13,075	(16	)
Obligations of states and political subdivisions	306,509		(5,304	)	—	—		306,509	(5,304	)
Corporate securities	462,902		(5,771	)	4,913	(89	)	467,815	(5,860	)
CLO and other ABS	189,795		(354	)	319	(1	)	190,114	(355	)
CMBS	82,492		(1,021	)	1,645	(7	)	84,137	(1,028	)
RMBS	279,480		(2,489	)	8,749	(309	)	288,229	(2,798	)
Total AFS fixed income securities	1,340,672		(14,991	)	15,626	(406	)	1,356,298	(15,397	)
AFS equity securities:
Common stock	11,271		(305	)	—	—		11,271	(305	)
Preferred stock	6,168		(355	)	—	—		6,168	(355	)
Total AFS equity securities	17,439		(660	)	—	—		17,439	(660	)
Total AFS securities	$	1,358,111	(15,651	)	15,626	(406	)	1,373,737	(16,057	)



December 31, 2015	Less than 12 months				12 months or longer			Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value	Unrealized Losses		Fair Value		Unrealized Losses
AFS fixed income securities:
U.S. government and government agencies	$	16,006	(87	)	396	(4	)	$	16,402	$	(91	)
Foreign government	1,067		(2	)	—	—		1,067		(2		)
Obligations of states and political subdivisions	28,617		(160	)	—	—		28,617		(160		)
Corporate securities	761,479		(12,671	)	50,382	(2,850	)	811,861		(15,521		)
CLO and other ABS	197,477		(807	)	12,022	(111	)	209,499		(918		)
CMBS	146,944		(2,196	)	15,385	(214	)	162,329		(2,410		)
RMBS	264,914		(1,992	)	63,395	(1,721	)	328,309		(3,713		)
Total AFS fixed income securities	1,416,504		(17,915	)	141,580	(4,900	)	1,558,084		(22,815		)
AFS equity securities:
Common stock	31,148		(1,998	)	—	—		31,148		(1,998		)
Preferred stock	1,531		(40	)	—	—		1,531		(40		)
Total AFS equity securities	32,679		(2,038	)	—	—		32,679		(2,038		)
Total AFS securities	$	1,449,183	(19,953	)	141,580	(4,900	)	$	1,590,763	$	(24,853	)

Schedule of Other Investment Portfolio by Strategy and the Remaining Commitment Amount Associated With Each Strategy



Other Investments	December 31, 2016				December 31, 2015
($ in thousands)	Carrying Value		Remaining Commitment	Maximum Exposure to Loss¹	Carrying Value	Remaining Commitment	Maximum Exposure to Loss¹
Alternative Investments
Private equity	$	41,135	76,774	117,909	35,088	30,204	65,292
Private credit	28,193		40,613	68,806	13,246	15,129	28,375
Real assets	14,486		22,899	37,385	19,500	25,820	45,320
Total alternative investments	83,814		140,286	224,100	67,834	71,153	138,987
Other securities	18,583		3,400	21,983	10,008	3,200	13,208
Total other investments	$	102,397	143,686	246,083	77,842	74,353	152,195

Schedule of Aggregated Summarized Balance Sheet Financial Information For Partnerhips In Our Alternative Investment Portfolio



Balance Sheet Information
September 30,
($ in millions)	2016		2015
Investments	$	11,244	7,527
Total assets	12,075		8,515
Total liabilities	1,802		316
Total partners’ capital	10,273		8,199

Schedule of Aggregated Summarized Income Statement Financial Information For Partnerhips In Our Alternative Investment Portfolio



Income Statement Information
12 months ended September 30,
($ in millions)	2016			2015		2014
Net investment income	$	(44	)	129		226
Realized gains	1,374			1,187		581
Net change in unrealized (depreciation) appreciation	(719		)	(1,364	)	1,098
Net income	$	611		(48	)	1,905

Insurance Subsidiaries' alternative investments income	3.1			(1.9	)	13.6

Schedule Of Securities Pledged As Collateral

The following table summarizes the market value of these securities at December 31, 2016:



($ in millions)	FHLBI Collateral		FHLBNY Collateral	State and Regulatory Deposits	Total
U.S. government and government agencies	$	7.4	—	24.8	32.2
CMBS	0.5		—	—	0.5
RMBS	59.6		58.2	—	117.8
Total pledged as collateral	$	67.5	58.2	24.8	150.5

Schedule of Components of Net Investment Income Earned



($ in thousands)	2016			2015		2014
Fixed income securities	$	129,306		123,230		126,489
Equity securities	7,368			9,161		7,449
Short-term investments	686			112		66
Other investments	2,940			(1,890	)	13,580
Investment expenses	(9,546		)	(9,297	)	(8,876	)
Net investment income earned	$	130,754		121,316		138,708

Schedule of OTTI by Asset Type



2016				Recognized in Earnings
($ in thousands)	Gross		Included in OCI	Recognized in Earnings
AFS fixed income securities:
Obligations of states and political subdivisions	$	2,797	—	2,797
Corporate securities	1,880		—	1,880
CLO and other ABS	19		—	19
CMBS	220		—	220
RMBS	275		10	265
Total AFS fixed income securities	5,191		10	5,181
AFS equity securities:
Common stock	3,316		—	3,316
Preferred stock	2		—	2
Total AFS equity securities	3,318		—	3,318
Total OTTI losses	$	8,509	10	8,499



2015				Recognized in Earnings
($ in thousands)	Gross		Included in OCI	Recognized in Earnings
AFS fixed income securities:
Corporate securities	$	2,188	—	2,188
RMBS	1		—	1
Total AFS fixed income securities	2,189		—	2,189
AFS equity securities:
Common stock	15,996		—	15,996
Preferred stock	181		—	181
Total AFS equity securities	16,177		—	16,177
Total OTTI losses	$	18,366	—	18,366



2014				Recognized in Earnings
($ in thousands)	Gross		Included in OCI	Recognized in Earnings
AFS fixed income securities:
RMBS	$	7	—	7
Total AFS fixed income securities	7		—	7
AFS equity securities:
Common stock	10,517		—	10,517
Total AFS equity securities	10,517		—	10,517
Other investments	580		—	580
Total OTTI losses	$	11,104	—	11,104

Schedule of Components of Net Realized Gains Excluding OTTI Charges



($ in thousands)	2016			2015		2014
HTM fixed income securities
Gains	$	3		5		2
Losses	(1		)	(1	)	(20	)
AFS fixed income securities
Gains	7,741			4,515		1,945
Losses	(11,411		)	(312	)	(392	)
AFS equity securities
Gains	8,108			29,168		36,871
Losses	(864		)	(1,347	)	(704	)
Short-term investments
Gains	—			—		—
Losses	(13		)	—		—
Other investments
Gains	3			162		1
Losses	(4		)	(653	)	—
Total net realized investment gains	$	3,562		31,537		37,703

Held-to-maturity Securities [Member]

Investment [Line Items]

Investments Classified by Contractual Maturity Date [Table Text Block]



($ in thousands)	Carrying Value		Fair Value
Due in one year or less	$	55,505	56,249
Due after one year through five years	37,536		39,853
Due after five years through 10 years	8,515		9,109
Total HTM fixed income securities	$	101,556	105,211

AFS Fixed Income Securities [Member]

Investment [Line Items]

Investments Classified by Contractual Maturity Date [Table Text Block]



($ in thousands)	Fair Value
Due in one year or less	$	374,080
Due after one year through five years	2,141,596
Due after five years through 10 years	2,090,677
Due after 10 years	186,187
Total AFS fixed income securities	$	4,792,540