Income Taxes - Narrative (Details) - USD ($)	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Jul. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Tax Cuts and Jobs Act of 2017, incomplete accounting, provisional income tax benefit			$ 17,000,000
Tax Cuts and Jobs Act of 2017, net benefit resulting from remeasurement of net deferred tax liabilities			17,500,000
Tax Cuts and Jobs Act of 2017, incomplete accounting, transaction tax for accumulated foreign earnings, provisional income tax expense (benefit)			500,000
Net deferred tax liabilities			22,932,000
Tax benefit from remeasurement of deferred income taxes, tax legislation	$ 0		(17,312,000)	$ 0
Increase in valuation allowance	(2,004,000)		18,452,000	28,466,000
U.S. valuation allowance release	0		15,388,000	0
Warrants	(4,557,000)		168,000	(1,722,000)
Goodwill impairment	0		0	21,831,000
Effect of foreign items	(411,000)		2,101,000	(788,000)
Foreign jurisdictions operating loss carryforwards			7,000,000
U.S. Federal operating loss carryforwards			42,400,000
State and local operating loss carryforwards			6,500,000
Operating loss carryforwards subject to expiration in years 2017 through 2019.			0
Operating loss carryforwards subject to expiration in years 2021 through 2027			900,000
Operating loss carryforwards subject to expiration in years 2030 through 2038			9,200,000
Operating loss carryforwards with indefinite expiration			1,300,000
Additions to tax positions of the prior years	0		2,884,000	0
Unrecognized tax benefits that would impact effective tax rate			2,900,000	0
Decrease in unrecognized tax benefits			200,000	0
Unrecognized Tax Benefits	0	$ 0	2,884,000	0
Loss and credit carryforwards			10,932,000	27,682,000
Income tax penalties and interest expense			500,000
Income tax penalties and interest accrued			500,000	0
Predecessor
Operating Loss Carryforwards [Line Items]
Tax benefit from remeasurement of deferred income taxes, tax legislation		0
Increase in valuation allowance		9,321,000
U.S. valuation allowance release		0
Warrants		0
Goodwill impairment		$ 0
Statutory rate (as a percent)		35.00%
Effect of foreign items		$ 2,315,000
Additions to tax positions of the prior years		0
Unrecognized Tax Benefits		0			$ 0
U.S. tax authority
Operating Loss Carryforwards [Line Items]
Net deferred tax liabilities			25,400,000
Increase in valuation allowance	$ (2,000,000)
Multiple revenue agencies | Predecessor
Operating Loss Carryforwards [Line Items]
Effect of foreign items		$ 2,300,000
Accounting Standards Update 2013-11
Operating Loss Carryforwards [Line Items]
Loss and credit carryforwards			1,100,000	$ 0
Research tax credit carryforward
Operating Loss Carryforwards [Line Items]
Tax credits for research and development expenditures			$ 200,000