Unaudited Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid in Capital	Non Controlling Interest	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at beginning of period (in shares) at Dec. 31, 2014		20,700,000
Treasury Stock, Balance at beginning of period (in shares) at Dec. 31, 2014			0
Balance, beginning of period at Dec. 31, 2014	$ 339,107	$ 6,211	$ 0	$ 109,700	$ 5,855	$ 225,747	$ (8,406)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	3,366					3,366
Foreign currency translation adjustment, net of tax	(6,138)						(6,138)
Foreign currency hedge, net of tax	982						982
Non-cash compensation	1,286			1,286
Comprehensive income attributable to non-controlling interest	43				43	(60)	17
Vesting of stock awards (in shares)		1,000
Vesting of stock awards	(15)			(15)
Tax benefit of exercise of stock options	$ 589			589
Exercise of stock options (in shares)	81,000	82,000
Exercise of stock options	$ 1,047	$ 25		1,022
Purchase of treasury stock (in shares)			(547,000)
Purchase of treasury stock	(21,138)		$ (21,138)
Balance at end of period (in shares) at Mar. 31, 2015		20,783,000
Treasury Stock, Balance at end of period (in shares) at Mar. 31, 2015			(547,000)
Balance, end of period at Mar. 31, 2015	$ 319,086	$ 6,236	$ (21,138)	112,582	5,898	229,053	(13,545)
Balance at beginning of period (in shares) at Dec. 31, 2015		21,837,000
Treasury Stock, Balance at beginning of period (in shares) at Dec. 31, 2015	(546,977)		(547,000)
Balance, beginning of period at Dec. 31, 2015	$ 338,146	$ 6,552	$ (21,138)	120,126	0	250,980	(18,374)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(6,434)					(6,434)
Foreign currency translation adjustment, net of tax	4,863						4,863
Foreign currency hedge, net of tax	(341)						(341)
Non-cash compensation	2,089			2,089
Tax benefit of exercise of stock options	107			107
Issuance of common stock in Furmanite acquisition and conversion of Furmanite share-based awards (in shares)		8,208,000
Issuance of common stock in Furmanite acquisition and conversion of Furmanite share-based awards	$ 211,530	$ 2,462		209,068
Exercise of stock options (in shares)	64,000	71,000
Exercise of stock options	$ 1,001	$ 20		981
Purchase of treasury stock (in shares)	(60,000)		(60,000)
Purchase of treasury stock	$ (1,720)		$ (1,720)
Other	$ (57)			(57)
Balance at end of period (in shares) at Mar. 31, 2016		30,116,000
Treasury Stock, Balance at end of period (in shares) at Mar. 31, 2016	(606,977)		(607,000)
Balance, end of period at Mar. 31, 2016	$ 549,184	$ 9,034	$ (22,858)	$ 332,314	$ 0	$ 244,546	$ (13,852)