Income Taxes - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Income Tax Contingency [Line Items]
Income tax expense (benefit)		$ (521)
Pre-tax loss from continuing operations		$ (5,662)
Effective tax rate (as a percent)		9.20%
Predecessor
Income Tax Contingency [Line Items]
Income tax expense (benefit)	[1]		$ (63)
Pre-tax loss from continuing operations	[1]		$ (13,555)
Effective tax rate (as a percent)			0.50%

[1] * Adjusted due to the adoption of ASU No. 2017-07, "Compensation – Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost." See Note 3 - New Accounting Standards, for additional information.