Property And Equipment - Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Property, Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,061,201	$ 2,067,485
Less accumulated depreciation and amortization	1,347,384	1,221,195
Property and equipment, net	713,817	846,290
Land
Property, Plant And Equipment [Line Items]
Property and equipment, gross	21,432	19,893
Buildings and improvements
Property, Plant And Equipment [Line Items]
Property and equipment, gross	74,424	73,599
Well service units and equipment
Property, Plant And Equipment [Line Items]
Property and equipment, gross	491,956	488,003
Frac equipment/test tanks
Property, Plant And Equipment [Line Items]
Property and equipment, gross	354,740	363,346
Pumping equipment
Property, Plant And Equipment [Line Items]
Property and equipment, gross	345,729	345,938
Fluid services equipment
Property, Plant And Equipment [Line Items]
Property and equipment, gross	268,187	268,249
Disposal facilities
Property, Plant And Equipment [Line Items]
Property and equipment, gross	161,598	166,371
Contract drilling equipment
Property, Plant And Equipment [Line Items]
Property and equipment, gross	112,628	112,068
Rental equipment
Property, Plant And Equipment [Line Items]
Property and equipment, gross	96,244	94,970
Light vehicles
Property, Plant And Equipment [Line Items]
Property and equipment, gross	65,369	67,521
Software
Property, Plant And Equipment [Line Items]
Property and equipment, gross	21,920	21,920
Other
Property, Plant And Equipment [Line Items]
Property and equipment, gross	16,006	16,672
Construction equipment
Property, Plant And Equipment [Line Items]
Property and equipment, gross	15,132	15,174
Brine and fresh water stations
Property, Plant And Equipment [Line Items]
Property and equipment, gross	$ 15,836	$ 13,761