Share-based Compensation (Tables)

3 Months Ended

Mar. 31, 2016

Summary of Restricted Stock and Performance Unit Award Activity

The following table presents restricted stock and performance unit award activity for the three months ended March 31, 2016:



	Restricted Stock				Performance Units
	Shares		Weighted Average Grant- Date Fair Value		Shares		Weighted Average Grant- Date Fair Value
Outstanding at January 1, 2016	1,007,794		$	49.47	175,675		$	59.94
Granted	321		62.35		—		—
Vested (a)	(74,444	)	46.05		(20,604	)	57.58
Forfeitures	(9,152	)	59.46		—		—
Outstanding at March 31, 2016	924,519		$	49.66	155,071		$	60.25

Compensation Expense for Restricted Stock and Performance Units

Compensation expense for share-based awards recognized in the Consolidated Statements of Income, net of forfeitures, was as follows (dollars in millions):



	Three Months Ended March 31
	2016			2015
Restricted stock	$	4.9		$	3.6
Performance units	0.7			0.6
Total share-based compensation expense	5.6			4.2
Income tax benefit	(2.2		)	(1.6		)
Share-based compensation expense, net of tax benefit	$	3.4		$	2.6

Unrecognized Compensation For Restricted Stock and Performance Units

The unrecognized compensation expense for all share-based awards at March 31, 2016 was as follows (dollars in millions):



	March 31, 2016
	Unrecognized Compensation Expense		Remaining Weighted Average Recognition Period (in years)
Restricted stock	$	22.1	2.4
Performance units	5.4		2.6
Total unrecognized share-based compensation expense	$	27.5	2.4