Net (Loss) Income Per Share Calculations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Net income available to common stockholders	$ (798)	$ 1,575
Weighted average common shares outstanding, basic (in shares)	47,905,000	47,825,000
Dilutive SARs (treasury method) (in shares)	0	29,000
Weighed average common shares outstanding, dilutive (in shares)	47,905,000	47,854,000
Net (loss) income per share - basic (in dollars per share)	$ (0.02)	$ 0.03
Net (loss) income per share - diluted (in dollars per share)	$ (0.02)	$ 0.03
Net Income Per Share Calculations
Dilutive SARs (treasury method) (in shares)	0	29,000
Stock Appreciation Rights (SARs)
Earnings Per Share [Abstract]
Dilutive SARs (treasury method) (in shares)	0	65,436
Net Income Per Share Calculations
Dilutive SARs (treasury method) (in shares)	0	65,436