Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Millions	1 Months Ended	2 Months Ended	3 Months Ended	5 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 02, 2019	Jun. 30, 2018	Jun. 02, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 16.3	$ 40.3	$ 65.2	$ 106.4	$ 126.8
Cost of sales	13.0	23.2	37.1	61.2	71.9
Selling, general and administrative	4.9	10.0	12.1	23.8	25.3
Transaction costs	0.3	7.0	0.2	7.4	0.2
Depreciation and amortization	3.0	7.1	10.6	17.7	21.6
Other operating expense, net	0.2	1.2	0.8	2.2	1.5
(Loss) income from operations	(5.1)	(8.2)	4.4	(5.9)	6.3
Interest expense	8.0	12.1	7.8	20.2	14.9
Foreign currency gain	(0.8)	(0.2)	(6.2)	(2.2)	(3.3)
(Loss) income before income taxes	(12.3)	(20.1)	2.8	(23.9)	(5.3)
Income tax (benefit) expense	(1.8)	(4.3)	0.9	(4.9)	(0.4)
Net (loss) income	(10.5)	(15.8)	1.9	(19.0)	(4.9)
Other comprehensive (loss) income:
Foreign currency translation adjustments	4.8	27.0	(8.8)	23.6	(4.4)
Comprehensive (loss) income	$ (5.7)	$ 11.2	$ (6.9)	$ 4.6	$ (9.3)
Net (loss) income per share—basic and diluted
Net (loss) income per share (in usd per share)	$ (0.19)	$ (15,807.96)	$ 1,859.17	$ (19,195.40)	$ (4,947.32)
Weighted-average shares outstanding (in shares)	53,868,925	995	995	995	995