Net Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income from continuing operations	$ 6,493	$ 5,537
Loss from discontinued operations	0	(28)
Net income	$ 6,493	$ 5,509
Weighted average shares outstanding	31,423,000	31,191,000
Common stock options and restricted stock (in shares)	367,000	195,000
Weighted average shares outstanding – Diluted	31,790,000	31,386,000
Common shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share calculation (in shares)	723,000	453,000