Earnings Per Share - (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Stock Options Antidilutive securities excluded from computation			78
Restricted Stock Unit Antidilutive excluded from computation			0
Stock Options Excluded from Computation of diluted loss per share				260
Restricted stock units excluded from Computation of diluted loss per share				0
Net Income (Loss) Attributable to Parent	$ 7,601	$ 6,027	$ 21,540	$ 7,875
Weighted Average Number of Shares Outstanding, Basic	30,779	31,663	30,869	31,724
Weighted Average Number Diluted Shares Outstanding Adjustment	563	676	630	649
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities	$ 412	$ 0	$ 206	$ 0
Weighted Average Number of Shares Outstanding, Diluted	31,754	32,339	31,705	32,373
Earnings (Loss) Per Share, Basic	$ 0.25	$ 0.19	$ 0.70	$ 0.25
Earnings (Loss) Per Share, Diluted	$ 0.24	$ 0.19	$ 0.68	$ 0.24