Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2014

Business Segment Information [Abstract]

Schedule Of Reportable Segments Financial Information

	Completion
	And Remedial						Contract		Corporate and
	Services		Well Servicing		Fluid Services		Drilling		Other		Total
Three Months Ended March 31, 2014 (Unaudited)
Operating revenues	$	137,485	$	92,912	$	92,835	$	13,524	$	—	$	336,756
Direct operating costs		(86,480)		(69,759)		(66,782)		(9,166)		—		(232,187)
Segment profits	$	51,005	$	23,153	$	26,053	$	4,358	$	—	$	104,569
Depreciation and amortization	$	15,727	$	13,980	$	16,063	$	3,210	$	2,725	$	51,705
Capital expenditures (excluding acquisitions)	$	15,395	$	7,694	$	7,240	$	908	$	1,869	$	33,106
Identifiable assets	$	431,291	$	265,870	$	311,905	$	57,734	$	458,215	$	1,525,015
Three Months Ended March 31, 2013 (Unaudited)
Operating revenues	$	118,361	$	87,675	$	84,330	$	13,985	$	—	$	304,351
Direct operating costs		(79,008)		(65,002)		(57,874)		(9,164)		—		(211,048)
Segment profits	$	39,353	$	22,673	$	26,456	$	4,821	$	—	$	93,303
Depreciation and amortization	$	14,932	$	14,787	$	14,311	$	3,196	$	2,555	$	49,781
Capital expenditures (excluding acquisitions)	$	12,987	$	12,026	$	9,118	$	3,093	$	2,649	$	39,873
Identifiable assets	$	442,241	$	303,136	$	308,943	$	63,426	$	457,503	$	1,575,249

Schedule Of Reconciliation Of Operating Profit (Loss) From Segments

	Three months ended March 31,
	2014		2013
Segment profits	$	104,569	$	93,303
General and administrative expenses		(39,559)		(41,957)
Depreciation and amortization		(51,705)		(49,781)
Gain (loss) on disposal of assets		679		(1,089)
Operating income	$	13,984	$	476