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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Nonvested Share Activity [Table Text Block]

The following summarizes the activity of our PSUs and RSUs awarded under the 2013 Incentive Plan for the year ended December 31, 2014:

		PSUs							RSUs
		Number of shares			Weighted Average Grant-Date Fair Value				Number of shares				Weighted Average Grant-Date Fair Value
Outstanding, December 31, 2013		90,124			$	26.65			14,161				$	26.65
Granted		100,692			30.32				128,497				30.41
Performance true-up		10,767			26.65				—				—
Vested		(77,056	)		26.65				(64,807		)		29.57
Forfeited		(7,968	)		28.93				(12,987		)		30.32
Outstanding, December 31, 2014		116,559			$	29.66			$	64,864			$	30.45

Stock options activity [Table Text Block]

The following is a summary of our stock option activity:

		Number of Options			Weighted Average Exercise Price Per Option				Weighted Average Remaining Contractual Life		Aggregate Intrinsic Value
									(years)		(thousands)
Outstanding, December 31, 2013		161,257			$	27.19
Exercised		(7,850	)		27.19
Cancelled/Forfeited		(12,175	)		27.19
Outstanding, December 31, 2014		141,232			$	27.19			8.2		$	1,407
Vested and expected to vest, December 31, 2014		131,140			$	27.19			8.2		$	1,306
Exercisable, December 31, 2014		45,276			$	27.19			8.2		$	451

Assumptions used to calculate fair value of stock options [Table Text Block]

The fair value for stock option awards was estimated at the grant date using the Black-Scholes option valuation model with the following weighted average assumptions:

	Year Ended December 31, 2013
Expected volatility	60.9		%
Expected life (in years)	6.0
Risk-free interest rate	1.0		%
Expected dividends	—
Weighted average fair value per option granted	$	14.87

Stock-based compensation expense recognized [Table Text Block]

Total stock-based compensation recognized from PSUs, RSUs, and stock options net of estimated forfeitures, was as follows:

		Year Ended December 31
		2014				2013
		(thousands)
PSUs		$	3,169			$	1,932
RSUs		2,018				274
Stock options		729				663
Total		$	5,916			$	2,869

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Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

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-Name Accounting Standards Codification

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Tabular disclosure of the changes in outstanding nonvested shares.

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