Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

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 nine months ended September 30, 2015:

	PSUs				RSUs
	Number of shares		Weighted Average Grant-Date Fair Value		Number of shares		Weighted Average Grant-Date Fair Value
Outstanding, December 31, 2014	116,559		$	29.66	64,864		$	30.45
Granted	116,636		36.17		139,846		36.18
Performance condition adjustment	27,438		30.32		—		—
Vested	(69,066	)	30.25		(20,166	)	30.52
Forfeited	(10,857	)	32.81		(8,758	)	33.97
Outstanding, September 30, 2015	180,710		$	33.55	175,786		$	34.83

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:

	Three Months Ended September 30				Nine Months Ended September 30
	2015		2014		2015		2014
	(thousands)
PSUs	$	505	$	1,152	$	1,719	$	2,202
RSUs	800		550		2,203		1,434
Stock options	127		174		408		550
Total	$	1,432	$	1,876	$	4,330	$	4,186