Earnings Per Share (Calculation of Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Income (loss) from continuing operations	$ 8,505	$ 40	$ (78)	$ (412)	$ 2,236	$ 1,775	$ 2,089	$ (560)	$ 8,055	$ 5,540	$ (10,402)
Basic weighted-average common shares outstanding									60,171	58,521	56,954
Assumed exercise of dilutive stock options, warrants and restricted stock									3,727	726	0
Diluted weighted-average common shares outstanding									63,898	59,247	56,954
Income (loss) from continuing operations:
Basic income (loss) per share									$ 0.13	$ 0.09	$ (0.18)
Diluted earnings (loss) per share (usd per share)									$ 0.13	$ 0.09	$ (0.18)