Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

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, 2016	$	1,288,642	$	1,854,210	$	870,763	$	732,483	$	-	$	4,746,098
December 31, 2015	$	1,223,191	$	1,929,185	$	967,719	$	794,149	$	-	$	4,914,244

Company's information by geographic area

Revenues
	Three Months Ended March 31,
	2016		2015
United States	$	303,576	$	760,443
Other Countries		109,557		156,792
Total	$	413,133	$	917,235
Long-Lived Assets
	March 31, 2016		December 31, 2015
United States	$	1,726,577	$	1,799,418
Other Countries		338,951		323,873
Total, net	$	2,065,528	$	2,123,291

Schedule Of Segment Reporting Information By Segment

Three Months Ended March 31, 2016
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	96,570	$	132,472	$	96,746	$	87,345	$	-	$	413,133
Cost of services and rentals
(exclusive of items shown separately below)		37,534		123,330		73,874		50,601		-		285,339
Depreciation, depletion, amortization     and accretion		46,784		54,627		23,585		11,676		-		136,672
General and administrative expenses		28,547		25,050		24,431		25,127		-		103,155
Loss from operations		(16,295)		(70,535)		(25,144)		(59)		-		(112,033)
Interest income (expense), net		-		-		(793)		943		(23,956)		(23,806)
Other income		-		-		-		-		7,755		7,755
Income (loss) from continuing operations     before income taxes	$	(16,295)	$	(70,535)	$	(25,937)	$	884	$	(16,201)	$	(128,084)

Three Months Ended March 31, 2015
			Onshore
	Drilling		Completion
	Products and		and Workover		Production		Technical				Consolidated
	Services		Services		Services		Solutions		Unallocated		Total
Revenues	$	196,636	$	351,084	$	251,379	$	118,136	$	-	$	917,235
Cost of services and rentals
(exclusive of items shown separately below)		61,801		254,207		191,222		75,016		-		582,246
Depreciation, depletion, amortization     and accretion		48,767		59,805		39,046		14,602		-		162,220
General and administrative expenses		38,843		38,264		43,306		30,549		-		150,962
Income (loss) from operations		47,225		(1,192)		(22,195)		(2,031)		-		21,807
Interest income (expense), net		-		-		235		417		(23,861)		(23,209)
Other expense		-		-		-		-		(971)		(971)
Income (loss) from continuing operations     before income taxes	$	47,225	$	(1,192)	$	(21,960)	$	(1,614)	$	(24,832)	$	(2,373)