Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Quantitative information about Level 3 assets and liabilities fair value measurements

The following table presents quantitative information about Level 3 Fair Value Measurements (dollars in millions):



	Fair Value as of December 31, 2012		Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
Embedded contractual derivative asset	$	11.2	Monte Carlo Simulation Approach	Health Net Health Care Expenditures	-1.7	%	—	0.8%	-(0.4%)
Embedded contractual derivative asset	$	11.2	Monte Carlo Simulation Approach	National Health Care Expenditures	3.7	%	—	3.7%	(3.7%)
Embedded contractual derivative liability	$	3.2	Monte Carlo Simulation Approach	Health Net Health Care Expenditures	-0.3	%	—	10.1%	(4.9%)
Embedded contractual derivative liability	$	3.2	Monte Carlo Simulation Approach	National Health Care Expenditures	-0.1	%	—	7.3%	(3.3%)
Goodwill - Western Region reporting unit	$	565.9
Goodwill - Western Region reporting unit	$	565.9	Income Approach	Discount Rate	9	%	—	9%	(9%)
Lease impairment obligation	$	7.4	Income Approach	Discount Rate	3.26	%	—	3.26%	(3.26%)

Schedule of Assets and Liabilities Measured on Recurring Basis

The following tables present information about our assets and liabilities measured at fair value on a recurring basis at December 31, 2012 and 2011, and indicate the fair value hierarchy of the valuation techniques utilized by us to determine such fair value (dollars in millions):



	Level 1		Level 2- current		Level 2- noncurrent		Level 3		Total
As of December 31, 2012
Assets:
Cash and cash equivalents	$	340.1	$	—	$	—	$	—	$	340.1
Investments—available-for-sale
Asset-backed debt securities:
Residential mortgage-backed securities	$	—	$	272.4	$	—	$	—	$	272.4
Commercial mortgage-backed securities	—		223.1		—		—		223.1
Other asset-backed securities	—		23.6		—		—		23.6
U.S. government and agencies:
U.S. Treasury securities	25.9		—		—		—		25.9
U.S. Agency securities	—		—		—		—		—
Obligations of states and other political subdivisions	—		841.9		—		0.2		842.1
Corporate debt securities	—		425.4		—		—		425.4
Total investments at fair value	$	25.9	$	1,786.4	$	—	$	0.2	$	1,812.5
Embedded contractual derivative	—		—		—		11.2		11.2
Total assets at fair value	$	366.0	$	1,786.4	$	—	$	11.4	$	2,163.8



	Level 3
As of December 31, 2012
Liability:
Embedded contractual derivative	$	3.2
Total liability at fair value	$	3.2



	Level 1		Level 2- current		Level 2- noncurrent		Level 3		Total
As of December 31, 2011
Assets:
Cash and cash equivalents	$	230.3	$	—	$	—	$	—	$	230.3
Investments—available-for-sale
Asset-backed debt securities:
Residential mortgage-backed securities	$	—	$	495.3	$	—	$	—	$	495.3
Commercial mortgage-backed securities	—		94.4		—		—		94.4
Other asset-backed securities	—		32.6		—		—		32.6
U.S. government and agencies:
U.S. Treasury securities	25.5		—		—		—		25.5
U.S. Agency securities	—		7.0		—		—		7.0
Obligations of states and other political subdivisions	—		517.9		—		0.2		518.1
Corporate debt securities	—		385.1		2.1		—		387.2
Total investments at fair value	$	25.5	$	1,532.3	$	2.1	$	0.2	$	1,560.1
Embedded contractual derivative	—		—		—		5.3		5.3
Total assets at fair value	$	255.8	$	1,532.3	$	2.1	$	5.5	$	1,795.7

Changes in the Balances of Level 3 Financial Assets on Recurring Basis

The changes in the balances of Level 3 financial assets for the years ended December 31, 2012 and 2011 were as follows (dollars in millions):



	Year Ended December 31,
	2012						2011
	Available-For-Sale Investments		Embedded Contractual Derivative		Total		Available-For-Sale Investments			Embedded Contractual Derivative		Total
Opening balance	$	0.2	$	5.3	$	5.5	$	9.9		$	—	$	9.9
Transfers into Level 3	—		—		—		—			—		—
Transfers out of Level 3	—		—		—		—			—		—
Total gains or losses for the period:
Realized in net income	—		5.9		5.9		(2.4		)	5.3		2.9
Unrealized in accumulated other comprehensive income	—		—		—		—			—		—
Purchases, issues, sales and settlements:
Purchases	—		—		—		—			—		—
Issues	—		—		—		—			—		—
Sales	—		—		—		(7.3		)	—		(7.3		)
Settlements	—		—		—		—			—		—
Closing balance	$	0.2	$	11.2	$	11.4	$	0.2		$	5.3	$	5.5
Change in unrealized gains (losses) included in net income for assets held at the end of the reporting period	$	—	$	—	$	—	$	—		$	—	$	—

Changes in the balances of level 3 financial liabilities on recurring basis

The changes in the balance of the Level 3 financial liability for the year ended December 31, 2012 were as follows (dollars in millions):



	Year Ended December 31,
	2012
	Embedded Contractual Derivative
Opening balance	$	—
Transfers into Level 3	—
Transfers out of Level 3	—
Total gains or losses for the period:
Loss realized in net income	3.2
Unrealized in accumulated other comprehensive income	—
Purchases, issues, sales and settlements:
Purchases	—
Issues	—
Sales	—
Settlements	—
Closing balance	$	3.2

Financial Assets and liabilities Measured at Fair Value on a Nonrecurring Basis

The following table presents information about financial assets and liabilities measured at fair value on a non-recurring basis as of December 31, 2012 and indicates the fair value hierarchy of the valuation techniques utilized by us to determine such fair value (dollars in millions):




	Level 1		Level 2		Level 3		Total
Lease impairment obligation	$	—	$	—	$	7.4	$	7.4

Schedule of Assets and Liabilities Measured on Nonrecurring Basis, Unobservable Inputs Reconciliation

The changes in the balances of Level 3 financial assets and liabilities that are fair valued on a non-recurring basis for the year ended December 31, 2012 were as follows (dollars in millions):



	Goodwill allocated to Medicare PDP business sold			Deferred revenue related to transition-related services provided in connection with Medicare PDP business sale			Lease impairment obligation
Beginning balance	$	—		$	—		$	—
Additions: Goodwill allocated to Medicare PDP business sold, deferred revenues and lease impairment obligation	40.0			12.0			7.4
Goodwill allocated to Medicare PDP business sold and deferred revenue, realized in net income	(40.0		)	(12.0		)	—
Ending balance	$	—		$	—		$	7.4

- Definition

Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).

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- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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