Segment Information (Tables)

3 Months Ended

Mar. 31, 2015

Segment Information [Abstract]

Identifiable Assets

Identifiable Assets
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
March 31, 2015	$	1,358,218	$	2,924,085	$	1,992,701	$	948,154	$	-	$	7,223,158
December 31, 2014	$	1,304,110	$	3,010,295	$	2,116,171	$	946,813	$	-	$	7,377,389

Company's information by geographic area

Revenues
	Three Months Ended March 31,
	2015		2014
United States	$	760,443	$	892,319
Other Countries		156,792		169,099
Total	$	917,235	$	1,061,418
Long-Lived Assets
	March 31, 2015		December 31, 2014
United States	$	2,311,191	$	2,416,306
Other Countries		379,300		317,533
Total, net	$	2,690,491	$	2,733,839

Schedule Of Segment Reporting Information By Segment

Three Months Ended March 31, 2015
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	199,459	$	350,992	$	251,469	$	115,315	$	-	$	917,235
Cost of services and rentals
(exclusive of items shown separately below)		63,251		254,115		191,314		73,566		-		582,246
Depreciation, depletion, amortization     and accretion		49,084		59,811		39,160		14,165		-		162,220
General and administrative expenses		39,960		38,292		43,682		29,028		-		150,962
Income (loss) from operations		47,164		(1,226)		(22,687)		(1,444)		-		21,807
Interest expense, net		-		-		-		417		(23,626)		(23,209)
Other expense		-		-		-		-		(971)		(971)
Income (loss) from continuing operations     before income taxes	$	47,164	$	(1,226)	$	(22,687)	$	(1,027)	$	(24,597)	$	(2,373)

Three Months Ended March 31, 2014
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	220,210	$	389,877	$	321,235	$	130,096	$	-	$	1,061,418
Cost of services and rentals
(exclusive of items shown separately below)		67,152		284,235		227,225		72,993		-		651,605
Depreciation, depletion, amortization     and accretion		45,017		60,604		41,808		14,889		-		162,318
General and administrative expenses		41,160		38,968		47,188		28,603		-		155,919
Income from operations		66,881		6,070		5,014		13,611		-		91,576
Interest expense, net		-		-		-		365		(24,246)		(23,881)
Other expense		-		-		-		-		(35)		(35)
Income (loss) from continuing operations     before income taxes	$	66,881	$	6,070	$	5,014	$	13,976	$	(24,281)	$	67,660