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Discontinued Operations - Income (Loss) from Discontinued Operations, Net of Tax (Details) - Remote accommodations - Discontinued Operations
$ in Thousands
 3 Months Ended
Mar. 31, 2017
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Remote accommodations revenue $ 27,078
Remote accommodations costs of leasing and services 11,575
Depreciation of rental equipment 6,423
Gross profit 9,080
Selling, general and administrative expenses 3,032
Other depreciation and amortization 1,251
Restructuring costs 390
Other income, net (3)
Operating profit 4,410
Interest expense 681
Income from discontinued operations, before income tax 3,729
Income tax expense 1,524
Income from discontinued operations, net of tax $ 2,205