Summary of Significant Accounting Policies (Details 3) (USD $)	12 Months Ended						12 Months Ended								12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Drilling and Rig Services	Dec. 31, 2012 Drilling and Rig Services	Dec. 31, 2012 U.S.	Dec. 31, 2013 U.S.	Dec. 31, 2012 International	Dec. 31, 2013 Rig Services	Dec. 31, 2012 Rig Services	Dec. 31, 2013 Completion and Production Services	Dec. 31, 2011 Completion and Production Services	Dec. 31, 2013 Completion	Dec. 31, 2012 Completion	Dec. 31, 2011 Completion	Dec. 31, 2013 Production	Dec. 31, 2011 Production
Change in the carrying amount of goodwill for various contract drilling segments and other operating segments
Beginning Balance	$ 472,326,000	$ 501,258,000	$ 82,262,000	$ 111,194,000	$ 57,445,000	$ 50,149,000	$ 18,983,000	$ 32,113,000	$ 34,766,000	$ 390,064,000	$ 390,064,000	$ 334,992,000	$ 334,992,000	$ 334,992,000	$ 55,072,000	$ 55,072,000
Acquisitions and purchase price adjustment	51,318,000		15,828,000					15,828,000		35,490,000					35,490,000
Disposals and Impairments	(9,631,000)	(29,314,000)	(9,631,000)	(29,314,000)	(7,296,000)		(18,983,000)	(9,631,000)	(3,035,000)
Cumulative Translation Adjustment	(1,049,000)	382,000	(1,049,000)	382,000				(1,049,000)	382,000
Ending Balance	512,964,000	472,326,000	87,410,000	82,262,000	50,149,000	50,149,000		37,261,000	32,113,000	425,554,000	390,064,000	334,992,000	334,992,000	334,992,000	90,562,000	55,072,000
Discontinued Operation, additional disclosures
Goodwill for the consolidated company, expected to be deductible for tax purposes	$ 76,700,000