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Equity-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation [Abstract]

Schedule of Number of Awards and Weighted Average Grant Date Fair Value

The following table provides the number of restricted stock units (that will convert to shares upon vesting) and shares of restricted stock that were issued during the years ended December 31 along with the weighted-average grant-date fair value of each award:

	2014							2013							2012
Awards	Number of Awards			Weighted Average Grant Date Fair Value				Number of Awards			Weighted Average Grant Date Fair Value				Number of Awards			Weighted Average Grant Date Fair Value
Restricted stock units	218,857			$	16.96			150,570			$	14.60			151,452			$	13.58
Restricted shares	21,721			$	16.76			13,188			$	16.83			11,130			$	11.86

Summary of Compensation Expense Connection with Awards

The Company recognized the following compensation expense in connection with awards that vested under the 2005 Equity Incentive Plan and previously terminated plans along with the related tax benefits recognized during the years ended December 31 (in thousands):

	2014				2013				2012
Expense recognized under terminated plans	$	—			$	—			$	18
Expense recognized under the Plan	3,150				2,564				3,130
Total stock compensation expense	$	3,150			$	2,564			$	3,148
Tax benefits recognized related to stock compensation expense	$	1,229			$	1,000			$	1,228

Summary of Ranges of Outstanding and Exercisable Options

The following table summarizes the ranges of outstanding and exercisable options at December 31, 2014:

Range of Exercise Prices	Options Outstanding			Weighted Average Remaining Contractual Life (in years)		Weighted Average Exercise Price				Options Exercisable			Weighted Average Exercise Price
$8.90 – $8.90	59,175			5.70		$	8.90			59,175			$	8.90
$9.74 – $9.74	157,264			6.70		$	9.74			113,514			$	9.74
$11.89 – $18.78	148,781			3.54		$	15.98			148,781			$	15.98
$20.52 – $23.78	204,099			2.35		$	22.56			204,099			$	22.56
	569,319									525,569

Summary of Stock Options Transactions

The following table summarizes information about stock option transactions:

	Options			Weighted Average Exercise Price				Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value
Balance at January 1, 2012	770,499			$	14.74
Exercised	(27,500	)		9.70
Forfeited	(31,375	)		13.76
Balance at December 31, 2012	711,624			$	14.97
Exercised	(59,750	)		11.00
Forfeited	(29,750	)		12.38
Balance at December 31, 2013	622,124			$	15.48
Exercised	(52,805	)		11.18
Balance at December 31, 2014	569,319			$	15.88			4.00		$	1,393,000

Aggregate Intrinsic Value of Options Exercised and Aggregate Fair Value of Restricted Stock Units and Restricted Shares that Vested

The following table sets forth the aggregate intrinsic value of options exercised and aggregate fair value of restricted stock units and restricted shares that vested during the years ended December 31 (in thousands):

	2014				2013				2012
Aggregate intrinsic value of options exercised	$	326			$	398			$	115
Aggregate fair value of vested restricted stock units	$	2,416			$	1,900			$	2,760
Aggregate fair value of vested restricted shares	$	364			$	222			$	193

Summary of Information About Restricted Stock Units and Weighted Average Grant Date Fair Value

The following table summarizes information about non-vested restricted stock units (that will convert to shares upon vesting) and restricted shares:

	Restricted Stock Units			Weighted Average Grant Date Fair Value				Restricted Shares			Weighted Average Grant Date Fair Value
Balance at December 31, 2013	576,724			$	14.77			5,053			$	14.37
Granted	218,857			16.96				21,721			16.76
Vested	(136,110	)		16.13				(16,515	)		16.57
Forfeited	(11,979	)		13.21				—			—
Balance at December 31, 2014	647,492			15.26				10,259			15.89

Schedule of Compensation Expense Recognized from Change in Fair Value and Vesting of Performance Stock Units

The following table summarizes the compensation expense recognized from the change in fair value and vesting of performance stock units awarded for the years ended December 31 (in thousands):

	2014				2013				2012
Performance stock unit compensation expense	$	31			$	2,214			$	1,639

Cash Paid to Settle Liability Awards

The MSPP is a share-based liability settled in cash. The following table sets forth the cash paid to settle these liability awards and expense recognized for the years ended December 31 (in thousands):

	2014				2013				2012
Share-based liabilities paid	$	2,120			$	531			$	542
MSPP expense	$	329			$	3,857			$	1,180

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