Restricted Securities Available for Sale

6 Months Ended

Jun. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Restricted Securities Available for Sale

     RESTRICTED SECURITIES AVAILABLE FOR SALE

Restricted securities available for sale consist of amounts held in a trust for future vehicle service contract claims. We determine the appropriate classification of our investments in debt securities at the time of purchase and reevaluate such determinations at each balance sheet date. Debt securities for which we do not have the intent or ability to hold to maturity are classified as available for sale, and stated at fair value with unrealized gains and losses, net of income taxes included in the determination of comprehensive income and reported as a component of shareholders’ equity.

Restricted securities available for sale consist of the following:

(In millions)	As of June 30, 2016
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
U.S. Government and agency securities	$	20.7	$	0.3	$	—		$	21.0
Corporate bonds	15.7		0.3		—			16.0
Asset-backed securities	5.1		—		—			5.1
Mortgage-backed securities	3.8		—		—			3.8
Commercial paper	0.7		—		—			0.7
Total restricted securities available for sale	$	46.0	$	0.6	$	—		$	46.6
(In millions)	As of December 31, 2015
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
U.S. Government and agency securities	$	21.8	$	—	$	(0.1	)	$	21.7
Corporate bonds	17.1		—		(0.1		)	17.0
Asset-backed securities	5.5		—		—			5.5
Mortgage-backed securities	4.1		—		—			4.1
Total restricted securities available for sale	$	48.5	$	—	$	(0.2	)	$	48.3

The fair value and gross unrealized losses for restricted securities available for sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are as follows:

(In millions)	Securities Available for Sale with Gross Unrealized Losses as of June 30, 2016
	Less than 12 Months				12 Months or More
	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Total Estimated Fair Value		Total Gross Unrealized Losses
U.S. Government and agency securities	$	0.8	$	—	$	—	$	—	$	0.8	$	—
Asset-backed securities	0.3		—		—		—		0.3		—
Mortgage-backed securities	0.3		—		—		—		0.3		—
Total restricted securities available for sale	$	1.4	$	—	$	—	$	—	$	1.4	$	—

(In millions)	Securities Available for Sale with Gross Unrealized Losses as of December 31, 2015
	Less than 12 Months					12 Months or More
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses		Total Estimated Fair Value		Total Gross Unrealized Losses
U.S. Government and agency securities	$	16.0	$	(0.1	)	$	0.7	$	—	$	16.7	$	(0.1	)
Corporate bonds	12.6		(0.1		)	1.7		—		14.3		(0.1		)
Asset-backed securities	5.4		—			—		—		5.4		—
Mortgage-backed securities	3.1		—			—		—		3.1		—
Total restricted securities available for sale	$	37.1	$	(0.2	)	$	2.4	$	—	$	39.5	$	(0.2	)

The cost and estimated fair values of debt securities by contractual maturity were as follows (securities with multiple maturity dates are classified in the period of final maturity). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

(In millions)	As of
	June 30, 2016				December 31, 2015
Contractual Maturity	Cost		Estimated Fair Value		Cost		Estimated Fair Value
Within one year	$	1.6	$	1.6	$	2.6	$	2.6
Over one year to five years	41.1		41.7		42.5		42.4
Over five years to ten years	0.5		0.5		0.5		0.5
Over ten years	2.8		2.8		2.9		2.8
Total restricted securities available for sale	$	46.0	$	46.6	$	48.5	$	48.3