Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Noncontrolling Interest [Member]	Accumulated Other Comprehensive Loss
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 408,971
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	$ 0		$ 0
Beginning Balance, Issued Shares at Dec. 31, 2015	33,416,110	33,416,110
Beginning Balance, Value at Dec. 31, 2015	$ 408,971	$ 3,342	57,120	$ 378,787	$ 0	$ (30,278)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent	22,159			22,159	0
Net Income (Loss) Attributable to Noncontrolling Interest	192				192
Cumulative translation adjustment	1,657					1,657
Repurchase and retirement of common stock, Shares		(465,560)
Repurchase and retirement of common stock, Value	(13,968)	$ (47)	(13,921)
Vesting of restricted stock, Shares		15,478
Vesting of restricted stock, Value	0	$ 2	(2)
Exercise of stock options, Shares		13,500
Exercise of stock options, Value	29	$ 1	28
Share based compensation	647		647
Forfeiture of certain shares to satisfy exercise costs and the recipients income tax obligations related to stock options exercised and restricted stock vested, Shares		(1,815)
Forfeiture of certain shares to satisfy exercise costs and the recipients income tax obligations related to stock options exercised and restricted stock vested	(66)	$ 0	(66)
Dividends paid	$ 2,422			2,422
Ending Balance, Issued Shares at Mar. 31, 2016	32,977,713	32,977,713
Ending Balance, Value at Mar. 31, 2016	$ 417,007	$ 3,298	$ 43,806	$ 398,524	$ 192	$ (28,621)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 417,199