Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended	5 Months Ended
	Jul. 11, 2017	Mar. 31, 2019	Dec. 31, 2017	Jun. 28, 2017
Minimum
Loss Contingencies [Line Items]
Income tax accrual not recorded		$ 1.0
Maximum
Loss Contingencies [Line Items]
Income tax accrual not recorded		1.5
Chapter 11 Bankruptcy
Loss Contingencies [Line Items]
Long-term contingent consideration				$ 8.5
Amount to be transferred upon emergence from Chapter 11	$ 0.5		$ 0.5
Amount to be transferred when required permits are delivered	$ 0.5	$ 0.5