Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Share-Based Compensation Expense

The following table summarizes share-based compensation expense:

	Three months ended September 30,						Nine months ended September 30,
	2013			2012			2013			2012
	(in thousands)
Restricted stock	$	802		$	890		$	2,522		$	2,610
Performance unit incentive plan (“PUP”)		347			548			871			1,220
Stock options		3			148			104			450
Restricted stock units		50			84			72			244
Total share-based compensation before income tax benefit		1,202			1,670			3,569			4,524
Income tax benefit		(445	)		(571	)		(1,326	)		(1,606	)
Total share-based compensation, net of income tax benefit	$	757		$	1,099		$	2,243		$	2,918

Summary of Activity of the Outstanding Share-Based Compensation Awards

The following table summarizes the activity of the outstanding share-based compensation awards:

	Restricted Stock					Restricted Stock Units					PUP Awards
				Weighted-					Weighted-					Weighted-
				Average					Average					Average
				Grant Date					Grant Date					Grant Date
	Shares			Fair Value		Units			Fair Value		Units			Fair Value
Balance at January 1, 2013		516,351		$	21.25		40,500		$	20.82		210,600		$	21.70
Granted		101,300			27.28		8,600			27.35		93,100			27.35
Vested		(161,186	)		20.74		(11,300	)		19.10		—			—
Forfeited		(5,966	)		23.07		(8,840	)		22.33		(432	)		20.60
Balance at September 30, 2013		450,499			22.76		28,960			22.98		303,268			23.43

Summary of Stock Option Activity

The following table summarizes stock option activity:

				Weighted-
				Average		Options
	Shares			Exercise Price		Exercisable
Options outstanding at January 1, 2013		363,896		$	22.03		276,009
Exercised		(47,343	)		19.48
Forfeited or expired		(27,419	)		28.22
Options outstanding at September 30, 2013		289,134			21.87		287,134