Business Segment Information (Tables)

6 Months Ended

Jun. 30, 2015

Business Segment Information [Abstract]

Schedule Of Reportable Segments Financial Information

	Completion
	And Remedial						Contract		Corporate and
	Services		Fluid Services		Well Servicing		Drilling		Other		Total
Three Months Ended June 30, 2015 (Unaudited)
Operating revenues	$	69,056	$	63,704	$	56,500	$	4,336	$	—	$	193,596
Direct operating costs		(57,670)		(48,381)		(47,035)		(3,488)		—		(156,574)
Segment profits	$	11,386	$	15,323	$	9,465	$	848	$	—	$	37,022
Depreciation and amortization	$	21,056	$	17,515	$	15,284	$	3,512	$	2,864	$	60,231
Capital expenditures (excluding acquisitions)	$	2,274	$	2,710	$	2,892	$	236	$	1,831	$	9,943
Three Months Ended June 30, 2014 (Unaudited)
Operating revenues	$	164,366	$	90,314	$	89,629	$	15,353	$	—	$	359,662
Direct operating costs		(102,617)		(65,055)		(64,748)		(10,510)		—		(242,930)
Segment profits	$	61,749	$	25,259	$	24,881	$	4,843	$	—	$	116,732
Depreciation and amortization	$	16,040	$	15,926	$	13,939	$	3,214	$	2,666	$	51,785
Capital expenditures (excluding acquisitions)	$	52,816	$	11,412	$	15,199	$	2,700	$	1,982	$	84,109
Six Months Ended June 30, 2015 (Unaudited)
Operating revenues	$	181,831	$	137,506	$	120,168	$	15,812	$	—	$	455,317
Direct operating costs		(138,921)		(102,512)		(99,437)		(11,014)		—		(351,884)
Segment profits	$	42,910	$	34,994	$	20,731	$	4,798	$	—	$	103,433
Depreciation and amortization	$	42,356	$	35,233	$	30,745	$	7,064	$	5,762	$	121,160
Capital expenditures (excluding acquisitions)	$	16,446	$	8,936	$	13,243	$	1,110	$	4,346	$	44,081
Identifiable assets	$	477,316	$	277,739	$	257,778	$	56,230	$	333,011	$	1,402,074
Six Months Ended June 30, 2014 (Unaudited)
Operating revenues	$	301,851	$	183,149	$	182,541	$	28,877	$	—	$	696,418
Direct operating costs		(189,097)		(131,837)		(134,508)		(19,675)		—		(475,117)
Segment profits	$	112,754	$	51,312	$	48,033	$	9,202	$	—	$	221,301
Depreciation and amortization	$	32,044	$	31,851	$	27,848	$	6,420	$	5,327	$	103,490
Capital expenditures (excluding acquisitions)	$	69,383	$	21,040	$	23,262	$	3,608	$	3,850	$	121,143
Identifiable assets	$	466,636	$	310,185	$	267,909	$	57,617	$	456,509	$	1,558,856

Schedule Of Reconciliation Of Operating Profit (Loss) From Segments

	Three months ended June 30,				Six months ended June 30,
	2015		2014		2015		2014
Segment profits	$	37,022	$	116,732	$	103,433	$	221,301
General and administrative expenses		(35,673)		(42,953)		(74,877)		(82,512)
Depreciation and amortization		(60,231)		(51,785)		(121,160)		(103,490)
Gain (loss) on disposal of assets		57		(916)		9		(237)
Operating income (loss)	$	(58,825)	$	21,078	$	(92,595)	$	35,062