Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended			3 Months Ended			3 Months Ended		3 Months Ended
	Feb. 15, 2011	Feb. 28, 2011	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011	Mar. 31, 2012 Well Service Units And Equipment [Member] Y	Mar. 31, 2012 Customer Relationships [Member]	Dec. 31, 2011 Customer Relationships [Member]	Mar. 31, 2012 Non-Compete Agreements [Member]	Dec. 31, 2011 Non-Compete Agreements [Member]	Mar. 31, 2012 Rig Engineering Plans [Member]	Mar. 31, 2012 Other Intangible Assets [Member]	Dec. 31, 2011 Other Intangible Assets [Member]	Mar. 31, 2012 7.125% Senior Notes Due 2016 [Member]	Apr. 12, 2006 7.125% Senior Notes Due 2016 [Member]	Mar. 31, 2012 7.75% Senior Notes Due 2019 [Member]	Mar. 31, 2012 11.625% Senior Secured Notes [Member]	Mar. 31, 2012 Completion And Remedial Services [Member]	Mar. 31, 2012 Fluid Services [Member]	Mar. 31, 2012 Well Servicing [Member]	Mar. 31, 2012 Contract Drilling Services [Member]	Mar. 31, 2011 Revolving Credit Facility [Member]	Feb. 15, 2011 Revolving Credit Facility [Member]
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, interest rate			11.625%	11.625%										7.125%	7.125%	7.75%	11.625%
Estimated useful lives, minimum, years						3
Estimated useful lives, maximum, years						15
Deferred debt costs, net of accumulated amortization			$ 20,800,000		$ 20,800,000											$ 12,400,000							$ 3,200,000
Amount of the credit facility available for withdrawal	165,000,000
Accumulated amortization of deferred debt costs			5,300,000		4,600,000
Amortization of deferred debt costs			693,000	432,000
Wrote-off of debt costs		3,900,000		3,900,000
Revolving credit facility																						30,000,000
Payoff of senior secured notes	224,700,000
Trade names value			1,900,000		1,900,000
Intangible assets subject to amortization							76,600,000	78,200,000	7,400,000	7,600,000		1,100,000	1,100,000
Intangible assets accumulated amortization			15,300,000		14,100,000
Amortization expense of intangible assets			1,700,000	1,100,000
Amortization period of intangible assets, in years							15		5		15
Other intangibles net of accumulated amortization																		$ 56,900,000	$ 3,600,000	$ 4,800,000	$ 4,500,000
Percentage revenue from a single customer that is not exceeded			10.00%	10.00%