CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss	Retained Earnings	Non controlling Interest	Geostream [Member]	Geostream [Member] Additional Paid-in Capital [Member]	Geostream [Member] Accumulated Other Comprehensive Loss	Geostream [Member] Non controlling Interest	AlMansoori Key Energy Services LLC	AlMansoori Key Energy Services LLC Additional Paid-in Capital [Member]	AlMansoori Key Energy Services LLC Accumulated Other Comprehensive Loss	AlMansoori Key Energy Services LLC Non controlling Interest
Beginning Balance at Dec. 31, 2010	$ 981,803	$ 14,166	$ 775,601	$ (51,334)	$ 210,653	$ 32,717
Beginning Balance (in shares) at Dec. 31, 2010		141,656
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation	(7,194)			(5,558)	0	(1,636)
Foreign currency impact on sale of Argentina (Note 3)	(2,400)	0	0	(2,400)	0	0
Common stock purchases (in shares)		(384)
Common stock purchases	(5,681)	(39)	(5,642)	0	0	0
Exercise of stock options and warrants (in shares)		728
Exercise of stock options and warrants	8,000	73	7,927	0	0	0
Stock Issued During Period, Shares, Acquisitions		7,549
Exercise of stock options (in shares)	647
Issuance of shares in acquisition	117,919	755	117,164	0	0	0
Share-based compensation (in shares)		1,184
Share-based compensation	15,609	118	15,491	0	0	0
Tax benefits from share-based compensation	4,859	0	4,859		0	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Sale of Equity Investment, Net of Tax	1,061			1,061	0	0
Net income (loss)	100,655	0	0	0	101,461	(806)
Ending Balance at Dec. 31, 2011	1,214,631	15,073	915,400	(58,231)	312,114	30,275
Ending Balance (in shares) at Dec. 31, 2011		150,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation	1,933	0	0	191	0	1,742
Foreign currency impact on sale of Argentina (Note 3)	51,892	0	0	51,892
Common stock purchases (in shares)		(483)
Common stock purchases	(7,519)	(48)	(7,471)	0	0	0
Exercise of stock options and warrants (in shares)		100
Exercise of stock options and warrants	901	10	891	0	0	0
Exercise of stock options (in shares)	114
Share-based compensation (in shares)		788
Share-based compensation	13,306	80	13,226	0	0	0
Tax benefits from share-based compensation	4,085	0	4,085	0	0	0
Shares surrendered (shares)		(68)
Shares surrendered	(1,006)	(7)	(999)	0	0	0
Net income (loss)	9,109	0	0	0	7,622	1,487
Ending Balance at Dec. 31, 2012	1,287,332	15,108	925,132	(6,148)	319,736	33,504
Ending Balance (in shares) at Dec. 31, 2012		151,070
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation	(5,607)	0	0	(4,916)	0	(691)
Common stock purchases (in shares)		(416)
Common stock purchases	(3,196)	(42)	(3,154)	0	0	0
Exercise of stock options (in shares)	4	4
Exercise of stock options	14	0	14	0	0	0
Share-based compensation (in shares)		1,673
Share-based compensation	13,785	167	13,618	0	0	0
Tax benefits from share-based compensation	(1,848)	0	(1,848)	0	0	0
Acquisition							(13,114)	22,432	(4,350)	(31,196)	(5,100)	(2,888)	0	(2,212)
Net income (loss)	(21,173)	0	0	0	(21,768)	595
Ending Balance at Dec. 31, 2013	$ 1,251,093	$ 15,233	$ 953,306	$ (15,414)	$ 297,968	$ 0
Ending Balance (in shares) at Dec. 31, 2013		152,331