Organization and Summary of Significant Accounting Policies (Narrative) (Details) (USD $)	3 Months Ended			9 Months Ended				3 Months Ended	1 Months Ended	9 Months Ended	3 Months Ended		3 Months Ended		9 Months Ended					1 Months Ended	3 Months Ended			9 Months Ended															9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2011	Jun. 30, 2013 Drilling Rigs [Member]	Feb. 28, 2014 Trucks [Member]	Sep. 30, 2014 Trucks [Member]	Sep. 30, 2013 Production Services Segment [Member]	Sep. 30, 2013 Drilling Rigs [Member] drilling_rigs	Sep. 30, 2014 Production Services Segment [Member] well_service_rigs wireline_tubing_units coiled_tubing_units	Sep. 30, 2013 Production Services Segment [Member]	Sep. 30, 2014 Production Services Segment [Member] well_service_rigs wireline_tubing_units coiled_tubing_units	Sep. 30, 2013 Production Services Segment [Member]	Jun. 30, 2013 Production Services Segment [Member] coiled_tubing_units	Sep. 30, 2014 Production Services Segment [Member] 550 Horsepower [Member] well_service_rigs	Sep. 30, 2014 Production Services Segment [Member] 600 Horsepower [Member] well_service_rigs	Oct. 31, 2013 Drilling Services Segment [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] drilling_rigs	Sep. 30, 2013 Drilling Services Segment [Member]	Jun. 30, 2013 Drilling Services Segment [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] drilling_rigs	Sep. 30, 2013 Drilling Services Segment [Member]	Sep. 30, 2014 Drilling Services Segment [Member] Colombia [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] Colombia [Member] Drilling Rigs [Member] drilling_rigs	Dec. 31, 2013 Drilling Services Segment [Member] Colombia [Member] Drilling Rigs [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] Active [Member] Currently Under Drilling Contract [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] Estimated to Become Active in 6 Months [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] Estimated to Become Active Between 6 and 9 Months [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] Estimated to Become Active Between 9 and 12 Months [Member] drilling_rigs	Sep. 30, 2014 Drilling Services Segment [Member] Estimated to Become Active Between 12 and 15 Months [Member] drilling_rigs	Sep. 30, 2014 Term Contract [Member] Drilling Services Segment [Member] Currently Under Drilling Contract [Member] drilling_rigs	Sep. 30, 2014 Term Contract [Member] Drilling Services Segment [Member] Currently Under Drilling Contract [Member] Colombia [Member] drilling_rigs	Sep. 30, 2014 Term Contract [Member] Drilling Services Segment [Member] Active [Member] Currently Under Drilling Contract [Member] drilling_rigs	Sep. 30, 2014 Term Contract [Member] Drilling Services Segment [Member] Active [Member] Currently Under Drilling Contract [Member] Colombia [Member] drilling_rigs	Sep. 30, 2014 Turnkey Drilling Contract [Member] Drilling Services Segment [Member]	Sep. 30, 2014 Daywork Drilling Contract [Member]	Sep. 30, 2014 Daywork Drilling Contract [Member] Drilling Services Segment [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 3 [Member] Income Approach Valuation Technique [Member] Finite-Lived Intangible Assets [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 3 [Member] Income Approach Valuation Technique [Member] Goodwill [Member]
Business
Drilling Rigs Under Term Contract To Be Built																														5	2	2	1
Segment Reporting Information, Disposed Drililng Rigs																				8			2
Segment Reporting Information, Drilling Rigs Held for Sale												8
Impairment charges	$ 678,000	$ 9,504,000		$ 678,000	$ 54,292,000						$ 300,000											$ 9,200,000
Assets Held-for-sale, Long Lived, Fair Value Disclosure	500,000			500,000
Drilling Rigs																					62			62		8	5	5	57					43	8	43	8
Well Servicing Rigs													112		112			102	10
Wireline Units													123		123
Coiled Tubing Units													16		16		13
Revenue Recognition
Deferred revenues	3,244,000			3,244,000		699,000
Unbilled Accounts Receivable
Billing Invoice Interval, Period																																							15 days
Unbilled receivables	44,830,000			44,830,000		49,535,000							6,000,000		6,000,000																							200,000		38,600,000
Property and Equipment [Abstract]
Payments to Acquire Property, Plant, and Equipment				120,738,000	137,945,000
Capital Expenditures	52,665,000	27,435,000		130,578,000	102,145,000								16,265,000	9,661,000	53,094,000	35,895,000					36,249,000	17,417,000		76,888,000	64,761,000
Interest Costs Capitalized				300,000	900,000
Gain (Loss) on Disposition of Property Plant Equipment				1,600,000	900,000			800,000		1,100,000
Proceeds from sale of property and equipment				7,197,000	6,898,000				4,500,000
Trucks, number in fleet									40
Net property and equipment	926,391,000			926,391,000		937,657,000			3,400,000
Construction in Progress, Gross	67,500,000			67,500,000		19,400,000
Intangible Assets
Sensitivity Analysis of Fair Value, Change in Impairment Due to Change in Assumption, Impact of One Percent Increase of Pricing Assumption																																									1,000,000	3,000,000
Impairment of Intangible Assets, Finite-lived			3,100,000
Goodwill, Impairment Loss			41,700,000
Sensitivity Analysis of Fair Value, Change in Impairment Due to Change in Assumption, Impact of One Percent Decrease of Pricing Assumption																																									1,000,000
Sensitivity Analysis of Fair Value, Change in Impairment De to Change in Assumption, Impact of One Percent Increase of Utilization Assumption																																									1,000,000	2,000,000
Sensitivity Analysis of Fair Value, Change in Impairment Due to Change in Assumption Impact of One Percent Decrease of Utilization Assumption																																									1,000,000
Sensitivity Analysis of Fair Value, Change in Impairment Due to Change in Assumption, Impact of Five Percent Decrease of Discount Rate Assumption																																										3,500,000
Fair Value Inputs, Discount Rate																																										13.00%
Goodwill			$ 0				$ 41,700,000