Business Segment Information - Schedule of Reportable Segments Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Operating revenues	$ 120,004	$ 193,596	$ 250,361	$ 455,317
Direct operating costs	(104,694)	(156,574)	(216,681)	(351,884)
Segment profits	15,310	37,022	33,680	103,433
Depreciation and amortization	54,847	60,231	110,999	121,160
Capital expenditures (excluding acquisitions)	7,795	9,943	13,762	44,081
Identifiable assets	1,078,358	1,402,074	1,078,358	1,402,074	$ 1,138,181
Operating Segments | Completion and Remedial Services
Segment Reporting Information [Line Items]
Operating revenues	36,228	69,056	75,924	181,831
Direct operating costs	(32,860)	(57,670)	(67,648)	(138,921)
Segment profits	3,368	11,386	8,276	42,910
Depreciation and amortization	18,954	21,056	38,359	42,356
Capital expenditures (excluding acquisitions)	935	2,274	1,511	16,446
Identifiable assets	324,114	477,316	324,114	477,316
Operating Segments | Fluid Services
Segment Reporting Information [Line Items]
Operating revenues	45,491	63,704	95,741	137,506
Direct operating costs	(38,619)	(48,381)	(79,786)	(102,512)
Segment profits	6,872	15,323	15,955	34,994
Depreciation and amortization	16,145	17,515	32,673	35,233
Capital expenditures (excluding acquisitions)	3,031	2,710	6,178	8,936
Identifiable assets	227,006	277,739	227,006	277,739
Operating Segments | Well Servicing
Segment Reporting Information [Line Items]
Operating revenues	36,824	56,500	75,731	120,168
Direct operating costs	(31,847)	(47,035)	(66,318)	(99,437)
Segment profits	4,977	9,465	9,413	20,731
Depreciation and amortization	13,886	15,284	28,102	30,745
Capital expenditures (excluding acquisitions)	2,303	2,892	3,454	13,243
Identifiable assets	209,498	257,778	209,498	257,778
Operating Segments | Contract Drilling
Segment Reporting Information [Line Items]
Operating revenues	1,461	4,336	2,965	15,812
Direct operating costs	(1,368)	(3,488)	(2,929)	(11,014)
Segment profits	93	848	36	4,798
Depreciation and amortization	3,201	3,512	6,479	7,064
Capital expenditures (excluding acquisitions)	0	236	113	1,110
Identifiable assets	45,976	56,230	45,976	56,230
Corporate and Other
Segment Reporting Information [Line Items]
Operating revenues	0	0	0	0
Direct operating costs	0	0	0	0
Segment profits	0	0	0	0
Depreciation and amortization	2,661	2,864	5,386	5,762
Capital expenditures (excluding acquisitions)	1,526	1,831	2,506	4,346
Identifiable assets	$ 271,764	$ 333,011	$ 271,764	$ 333,011