Equity (Tables)

3 Months Ended

Mar. 31, 2015

Equity

Summary of the status of the Company's unvested restricted stock and restricted stock units and changes during the period

			Weighted
			Average
			Grant Date
Unvested Shares	Shares		Fair Value
Unvested at January 1, 2015	846,760		$	65.10
Granted	557,760		59.27
Vested	(63,000	)	57.42
Canceled	(82,850	)	58.66
Unvested at March 31, 2015	1,258,670		$	63.33
Shares reserved for future grants (all plans)	2,356,894

Schedule of accumulated other comprehensive loss

				Unrealized		Pension and			Accumulated
	Foreign Currency			Gain on		Postretirement			Other
	Translation			Investments,		Benefit Adjustments,			Comprehensive
	Loss			Net of Tax		Net of Tax			Loss
	(in millions)
Balance as of January 1, 2015	$	(23.2	)	$	0.4	$	(26.1	)	$	(48.9	)
Current-period change	(24.9		)	0.1		—			(24.8		)
Balance as of March 31, 2015	$	(48.1	)	$	0.5	$	(26.1	)	$	(73.7	)