Stock Plans (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Stock Compensation Expense

Stock compensation expense was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2013		2012		2013		2012
Stock compensation expense	$	2,754	$	2,377	$	7,949	$	5,295
Income tax benefit		1,026		886		2,948		1,934
Stock compensation expense, net of income tax benefit		1,728		1,491		5,001		3,361

Summary of Stock Option Activity

A summary of stock option activity for the six months ended June 30, 2013 follows:

	Shares			Weighted Average Exercise Price
Outstanding at January 1		1,784,660		$	33.05
Granted		188,407			49.03
Exercised		(240,219	)		34.79
Outstanding at June 30		1,732,848			34.54
Exercisable at June 30		1,187,815			31.85

Summary of Restricted Stock Activity

A summary of restricted stock activity for the six months ended June 30, 2013 follows:

	Shares			Weighted Average Grant Date Fair Value
Unvested at January 1		417,843		$	31.92
Granted		86,177			48.80
Vested		(166,739	)		26.80
Forfeited		(8,371	)		40.06
Unvested at June 30		328,910			38.73

Summary of Performance Stock Unit Activity

A summary of performance stock unit activity for the six months ended June 30, 2013 follows:

	Shares			Weighted Average Grant Date Fair Value
Unvested at January 1		137,672		$	35.85
Granted		53,357			57.58
Performance adjustments		3,317			24.63
Vested		(42,413	)		24.84
Unvested at June 30		151,933			46.31