Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment - gross	$ 185,829		$ 185,829		$ 203,531
Less accumulated depreciation and amortization, including accumulated amortization of capitalized leases	77,204		77,204		76,786
Total property, plant and equipment, net	108,625		108,625		126,745
Asset Impairment	128,938	$ 0	128,938	$ 0
Tubular and Energy Services [Member]
Property, Plant and Equipment [Line Items]
Asset Impairment			14,956
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - gross	14,592		14,592		17,054
Improvements To Land And LeaseHolds [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - gross	16,598		16,598		16,590
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - gross	33,252		33,252		39,366
Machinery And Equipment, Including Equipment Under Capitalized Leases [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - gross	116,470		116,470		118,677
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - gross	$ 4,917		$ 4,917		$ 11,844