Segment Data (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue, Major Customer [Line Items]
Revenues	$ 104,554	$ 154,170	$ 334,413	$ 526,278
Operating Income (Loss)	(15,055)	(9,263)	(49,015)	(4,817)
Employee termination costs	280	2,262	4,572	5,915
Fluids systems
Revenue, Major Customer [Line Items]
Revenues	89,097	138,765	283,901	451,011
Operating Income (Loss)	(8,995)	(1,246)	(36,126)	(3,171)
Employee termination costs	206	1,940	4,125	5,277
Mats and integrated services
Revenue, Major Customer [Line Items]
Revenues	15,457	15,405	50,512	75,267
Operating Income (Loss)	882	(128)	8,607	22,074
Employee termination costs	35	244	285	461
Corporate office
Revenue, Major Customer [Line Items]
Operating Income (Loss)	(6,942)	(7,889)	(21,496)	(23,720)
Employee termination costs	39	78	162	177
Cost of revenues
Revenue, Major Customer [Line Items]
Employee termination costs	222	1,368	3,647	3,886
Selling, general and administrative expenses
Revenue, Major Customer [Line Items]
Employee termination costs	$ 58	$ 894	$ 925	$ 2,029