Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

The following tables present the financial instruments carried at fair value on a recurring basis by ASC 820-10 valuation hierarchy (as described above). There were no financial instruments carried at fair value on a non-recurring basis as of December 31, 2014 and 2013, respectively.

Fair Values of Financial Instruments by Level:	As of December 31, 2014
($ in millions)	Level 1		Level 2		Level 3		Total
Assets
Available-for-sale debt securities
U.S. government and agency [1]	$	—	$	9.1	$	80.2	$	89.3
State and political subdivision	—		35.9		193.3		229.2
Foreign government	—		57.7		16.1		73.8
Corporate	—		1,414.7		1,417.2		2,831.9
CMBS	—		191.0		64.6		255.6
RMBS	—		424.8		151.6		576.4
CDO/CLO	—		—		83.5		83.5
Other ABS	—		4.2		77.9		82.1
Total available-for-sale debt securities	—		2,137.4		2,084.4		4,221.8
Available-for-sale equity securities	—		—		28.7		28.7
Short-term investments	79.8		—		—		79.8
Derivative assets	—		157.5		—		157.5
Fair value investments	—		13.0		33.7		46.7
Separate account assets	1,757.5		—		—		1,757.5
Total assets	$	1,837.3	$	2,307.9	$	2,146.8	$	6,292.0
Liabilities
Derivative liabilities	$	0.5	$	85.1	$	—	$	85.6
Embedded derivatives	—		—		160.3		160.3
Total liabilities	$	0.5	$	85.1	$	160.3	$	245.9

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[1] Level 3 includes securities whose underlying collateral is an obligation of a U.S. government entity.

There were no transfers of assets between Level 1 and Level 2 during the year ended December 31, 2014.

Fair Values of Financial Instruments by Level:	As of December 31, 2013
($ in millions)	Level 1		Level 2		Level 3		Total
Assets
Available-for-sale debt securities
U.S. government and agency [1]	$	—	$	9.8	$	58.8	$	68.6
State and political subdivision	—		20.8		133.8		154.6
Foreign government	—		62.2		3.3		65.5
Corporate	—		1,105.0		1,091.9		2,196.9
CMBS	—		221.8		31.9		253.7
RMBS	—		333.9		176.1		510.0
CDO/CLO	—		—		70.9		70.9
Other ABS	—		13.6		82.3		95.9
Total available-for-sale debt securities	—		1,767.1		1,649.0		3,416.1
Available-for-sale equity securities	—		—		11.2		11.2
Short-term investments	80.0		1.0		—		81.0
Derivative assets	—		225.3		—		225.3
Fair value investments	—		13.0		35.6		48.6
Separate account assets	2,052.7		—		—		2,052.7
Total assets	$	2,132.7	$	2,006.4	$	1,695.8	$	5,834.9
Liabilities
Derivative liabilities	$	5.3	$	110.8	$	—	$	116.1
Embedded derivatives	—		—		87.8		87.8
Total liabilities	$	5.3	$	110.8	$	87.8	$	203.9

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[1] Level 3 includes securities whose underlying collateral is an obligation of a U.S. government entity.

Fair Value, Assets Measured on Recurring Basis

The following tables present corporates carried at fair value and on a recurring basis by sector.

Fair Values of Corporates by Level and Sector:	As of December 31, 2014
($ in millions)	Level 1		Level 2		Level 3		Total
Corporates
Consumer	$	—	$	219.9	$	362.6	$	582.5
Energy	—		181.6		163.1		344.7
Financial services	—		574.6		321.5		896.1
Capital goods	—		142.0		125.3		267.3
Transportation	—		30.5		114.9		145.4
Utilities	—		117.9		219.3		337.2
Other	—		148.2		110.5		258.7
Total corporates	$	—	$	1,414.7	$	1,417.2	$	2,831.9

Fair Values of Corporates by Level and Sector:	As of December 31, 2013
($ in millions)	Level 1		Level 2		Level 3		Total
Corporates
Consumer	$	—	$	288.9	$	367.9	$	656.8
Energy	—		137.7		135.3		273.0
Financial services	—		440.3		238.0		678.3
Capital goods	—		62.6		55.6		118.2
Transportation	—		25.0		85.1		110.1
Utilities	—		83.6		154.3		237.9
Other	—		66.9		55.7		122.6
Total corporates	$	—	$	1,105.0	$	1,091.9	$	2,196.9

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following tables set forth a summary of changes in the fair value of our Level 3 financial assets and liabilities. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Transfers in and out of Level 3 occur at the beginning of each period. The securities which were transferred into Level 3 were due to decreased market observability of similar assets and/or changes to significant inputs, such as downgrades or price declines. Transfers out of Level 3 were due to increased market activity on comparable assets or observability of inputs.

Level 3 Financial Assets:	As of December 31, 2014
($ in millions)	Balance, beginning of period		Purchases		Sales			Transfers into Level 3		Transfers out of Level 3			Realized and unrealized gains (losses) included in income [1]			Unrealized gains (losses) included in OCI			Total
Assets
Available-for-sale debt securities
U.S. government and agency [2]	$	58.8	$	24.2	$	(7.5	)	$	—	$	—		$	—		$	4.7		$	80.2
State and political subdivision	133.8		51.2		(2.2		)	—		—			—			10.5			193.3
Foreign government	3.3		2.2		—			10.7		—			—			(0.1		)	16.1
Corporate	1,091.9		335.0		(64.6		)	68.5		(44.3		)	(0.9		)	31.6			1,417.2
CMBS	31.9		8.1		(6.5		)	33.8		(6.9		)	0.3			3.9			64.6
RMBS	176.1		2.3		(20.2		)	—		(4.3		)	0.3			(2.6		)	151.6
CDO/CLO	70.9		35.2		(20.1		)	—		—			0.6			(3.1		)	83.5
Other ABS	82.3		13.7		(17.3		)	1.0		—			0.1			(1.9		)	77.9
Total available-for-sale   debt securities	1,649.0		471.9		(138.4		)	114.0		(55.5		)	0.4			43.0			2,084.4
Available-for-sale equity securities	11.2		17.2		—			—		—			—			0.3			28.7
Fair value investments	35.6		1.0		(2.3		)	—		—			(0.6		)	—			33.7
Total assets	$	1,695.8	$	490.1	$	(140.7	)	$	114.0	$	(55.5	)	$	(0.2	)	$	43.3		$	2,146.8

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[1] Reflected in realized investment gains and losses for all assets except fair value investments which are included in net investment income.

[2] Includes securities whose underlying collateral is an obligation of a U.S. government entity.

Level 3 Financial Assets:	As of December 31, 2013
($ in millions)	Balance, beginning of period		Purchases		Sales			Transfers into Level 3		Transfers out of Level 3			Realized and unrealized gains (losses) included in income [1]			Unrealized gains (losses) included in OCI			Total
Assets
Available-for-sale debt securities
U.S. government and agency [2]	$	25.9	$	44.3	$	(9.1	)	$	—	$	—		$	—		$	(2.3	)	$	58.8
State and political subdivision	116.1		47.8		(1.5		)	—		—			—			(28.6		)	133.8
Foreign government	8.0		—		—			1.6		(6.1		)	—			(0.2		)	3.3
Corporate	797.9		356.4		(57.0		)	41.6		(10.9		)	0.7			(36.8		)	1,091.9
CMBS	19.3		19.3		(1.7		)	—		(1.5		)	(0.2		)	(3.3		)	31.9
RMBS	223.3		1.3		(36.4		)	5.1		—			(0.5		)	(16.7		)	176.1
CDO/CLO	56.8		36.6		(10.6		)	—		—			(0.3		)	(11.6		)	70.9
Other ABS	80.1		13.4		(10.2		)	—		—			—			(1.0		)	82.3
Total available-for-sale   debt securities	1,327.4		519.1		(126.5		)	48.3		(18.5		)	(0.3		)	(100.5		)	1,649.0
Available-for-sale equity securities	3.6		8.4		—			—		—			—			(0.8		)	11.2
Fair value investments	22.7		21.1		(8.3		)	—		—			0.1			—			35.6
Total assets	$	1,353.7	$	548.6	$	(134.8	)	$	48.3	$	(18.5	)	$	(0.2	)	$	(101.3	)	$	1,695.8

———————

[1] Reflected in realized investment gains and losses for all assets except fair value investments which are included in net investment income.

[2] Includes securities whose underlying collateral is an obligation of a U.S. government entity.

Level 3 Financial Liabilities:	Embedded Derivatives
($ in millions)	For the years ended December 31,
	2014		2013
Balance, beginning of period	$	87.8	$	86.8
Net purchases/(sales)	27.1		12.0
Transfers into Level 3	—		—
Transfers out of Level 3	—		—
Realized (gains) losses [1]	45.4		(11.0		)
Balance, end of period	$	160.3	$	87.8

———————

[1] Realized gains and losses are included in net realized investment gains on the statements of income and comprehensive income.

Fair Value Inputs, Liabilities, Quantitative Information

The following tables present quantitative estimates about unobservable inputs used in the fair value measurement of significant categories of internally priced assets.

Level 3 Assets: [1]	As of December 31, 2014
($ in millions)	Fair Value		Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
U.S. government and agency	$	80.2	Discounted cash flow	Yield	1.02% - 3.64% (2.75%)
State and political subdivision	$	65.9	Discounted cash flow	Yield	2.34% - 4.50% (3.33%)
Corporate	$	1,053.3	Discounted cash flow	Yield	0.93% - 6.88% (3.35%)
Other ABS	$	9.8	Discounted cash flow	Yield	1.83% - 3.01% (2.01%)
Fair value investments	$	1.0	Discounted cash flow	Default rate	0.17%
				Recovery rate	44.00%

———————

[1] Excludes Level 3 assets which are valued based upon non-binding independent third-party valuations or third-party price information for which unobservable inputs are not reasonably available to us.

Level 3 Assets: [1]	As of December 31, 2013
($ in millions)	Fair Value		Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
U.S. government and agency	$	58.8	Discounted cash flow	Yield	1.07% - 5.00% (3.18%)
State and political subdivision	$	45.4	Discounted cash flow	Yield	2.44% - 5.79% (3.88%)
Corporate	$	874.8	Discounted cash flow	Yield	1.06% - 6.75% (3.82%)
Other ABS	$	11.3	Discounted cash flow	Yield	2.10% - 3.41% (2.30%)
				Prepayment rate	2.00%
				Default rate	2.53% for 48 mos then 0.37% thereafter
				Recovery rate	10.00% (TRUPS)
Fair value investments	$	0.8	Discounted cash flow	Default rate	0.25%
				Recovery rate	45.00%

———————

[1] Excludes Level 3 assets which are valued based upon non-binding independent third-party valuations or third-party price information for which unobservable inputs are not reasonably available to us.

The following tables present quantitative estimates about unobservable inputs used in the fair value measurement of internally priced liabilities.

Level 3 Liabilities:	As of December 31, 2014
($ in millions)	Fair Value		Valuation Technique(s)	Unobservable Input	Range
Embedded derivatives (FIA)	$	153.9	Budget method	Swap curve	0.24% -2.55%
				Mortality rate	105% or 97% 2012 IAM basic table with scale G2
				Lapse rate	0.04% - 46.44%
				CSA	3.08%
Embedded derivatives (GMAB / GMWB / COMBO)	$	6.4	Risk neutral stochastic   valuation methodology	Volatility surface	9.89% - 67.34%
				Swap curve	0.21% - 2.76%
				Mortality rate	105% 2012 IAM basic table with scale G2
				Lapse rate	0.00% - 40.00%
				CSA	3.08%

Level 3 Liabilities:	As of December 31, 2013
($ in millions)	Fair Value			Valuation Technique(s)	Unobservable Input	Range
Embedded derivatives (FIA)	$	91.9		Budget method	Swap curve	0.19% - 3.79%
					Mortality rate	103% or 97% 2012 IAM basic table with scale G2
					Lapse rate	0.02% - 47.15%
					CSA	3.23%
Embedded derivatives (GMAB / GMWB / COMBO)	$	(4.1	)	Risk neutral stochastic   valuation methodology	Volatility surface	10.85% - 46.33%
					Swap curve	0.15% - 4.15%
					Mortality rate	105% 2012 IAM basic table with scale G2
					Lapse rate	0.00% - 40.00%
					CSA	3.23%

Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation

Level 3 Assets and Liabilities by Pricing Source:	As of December 31, 2014
($ in millions)	Internal [1]		External [2]		Total
Assets
Available-for-sale debt securities
U.S. government and agency [3]	$	80.2	$	—	$	80.2
State and political subdivision	65.9		127.4		193.3
Foreign government	—		16.1		16.1
Corporate	1,053.3		363.9		1,417.2
CMBS	—		64.6		64.6
RMBS	—		151.6		151.6
CDO/CLO	—		83.5		83.5
Other ABS	9.8		68.1		77.9
Total available-for-sale debt securities	1,209.2		875.2		2,084.4
Available-for-sale equity securities	—		28.7		28.7
Fair value investments	1.0		32.7		33.7
Total assets	$	1,210.2	$	936.6	$	2,146.8
Liabilities
Embedded derivatives	$	160.3	$	—	$	160.3
Total liabilities	$	160.3	$	—	$	160.3

———————

[1] Represents valuations reflecting both internally-derived and market inputs, as well as third-party information or quotes.

[2] Represents unadjusted prices from independent pricing services, third-party financial statements and independent indicative broker quotes where pricing inputs are not readily available.

[3] Includes securities whose underlying collateral is an obligation of a U.S. government entity.

Level 3 Assets and Liabilities by Pricing Source:	As of December 31, 2013
($ in millions)	Internal [1]		External [2]		Total
Assets
Available-for-sale debt securities
U.S. government and agency [3]	$	58.8	$	—	$	58.8
State and political subdivision	45.4		88.4		133.8
Foreign government	—		3.3		3.3
Corporate	874.8		217.1		1,091.9
CMBS	—		31.9		31.9
RMBS	—		176.1		176.1
CDO/CLO	—		70.9		70.9
Other ABS	11.3		71.0		82.3
Total available-for-sale debt securities	990.3		658.7		1,649.0
Available-for-sale equity securities	—		11.2		11.2
Fair value investments	0.8		34.8		35.6
Total assets	$	991.1	$	704.7	$	1,695.8
Liabilities
Embedded derivatives	$	87.8	$	—	$	87.8
Total liabilities	$	87.8	$	—	$	87.8

———————

[1] Represents valuations reflecting both internally-derived and market inputs, as well as third-party information or quotes.

[2] Represents unadjusted prices from independent pricing services, third-party financial statements and independent indicative broker quotes where pricing inputs are not readily available.

[3] Includes securities whose underlying collateral is an obligation of a U.S. government entity.

Fair Value, by Balance Sheet Grouping

The following table discloses the Company’s financial instruments where the carrying amounts and fair values differ:

Carrying Amounts and Fair Values of Financial Instruments:		As of December 31,
($ in millions)		2014				2013
	Fair Value Hierarchy Level	Carrying Value		Fair Value		Carrying Value		Fair Value
Financial assets:
Policy loans	Level 3	$	68.1	$	67.6	$	66.1	$	65.6
Cash and cash equivalents	Level 1	$	162.3	$	162.3	$	181.0	$	181.0
Financial liabilities:
Investment contracts	Level 3	$	3,306.9	$	3,308.6	$	2,775.2	$	2,776.2
Surplus notes	Level 3	$	30.0	$	30.0	$	30.0	$	30.0