Summary of Significant Accounting Policies (Estimated Useful Lives of Property and Equipment) (Details)	12 Months Ended
	Dec. 31, 2014
Buildings and improvements | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	20 years
Buildings and improvements | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	30 years
Well service units and equipment | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	3 years
Well service units and equipment | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	15 years
Fluid Services Equipment | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	5 years
Fluid Services Equipment | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	10 years
Brine and fresh water stations
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	15 years
Frac/Test Tanks
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	10 years
Pumping equipment | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	5 years
Pumping equipment | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	10 years
Construction equipment | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	3 years
Construction equipment | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	10 years
Contract drilling equipment | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	3 years
Contract drilling equipment | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	10 years
Disposal facilities | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	10 years
Disposal facilities | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	15 years
Vehicles | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	3 years
Vehicles | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	7 years
Rental equipment | Minimum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	2 years
Rental equipment | Maximum
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	15 years
Aircraft
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	10 years
Software And Computers
Property, Plant And Equipment [Line Items]
Estimated useful lives, maximum, years	3 years