Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2015

Comprehensive Income Net Of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table summarizes the activity within accumulated other comprehensive income (loss) for the years ended December 31, 2015, 2014 and 2013:

(In millions)	Unrealized Gains on Investment Securities, Available for Sale			Currency Translation			Pension Benefit Adjustment			Accumulated Other Comprehensive Income (Loss)
Balance, December 31, 2012	$	0.2		$	—		$	—		$	0.2
Unrealized gains		0.2			—			—			0.2
Amounts realized in earnings		(0.4	)		—			—			(0.4	)
Balance, December 31, 2013 and 2014		—			—			—			—
Currency translation adjustments		—			(6.0	)		—			(6.0	)
Pension benefit adjustments		—			—			7.1			7.1
Deferred tax expense on pension    benefit adjustments		—			—			(2.1	)		(2.1	)
Balance, December 31, 2015	$	—		$	(6.0	)	$	5.0		$	(1.0	)