Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Ordinary Class A Common Stock	Ordinary Class B	Ordinary Class B Common Stock	Common Class A	Common Class A Common Stock	Common Class C	Common Class C Common Stock	Shares subject to a $15.00 earn-out	Shares subject to a $15.00 earn-out Common Class A	Shares subject to a $15.00 earn-out Common Class C	Shares subject to a $12.50 earn-out	Shares subject to a $12.50 earn-out Common Class A	Shares subject to a $12.50 earn-out Common Class C	Shares subject to a $12.25 earn-out	Shares subject to a $12.25 earn-out Common Class A	Shares subject to a $12.25 earn-out Common Class C
Beginning Balance (shares) at Dec. 31, 2016		1,000
Beginning Balance at Dec. 31, 2016	$ 164.6	$ 0.0	$ 291.4	$ (89.0)	$ 0.0	$ (37.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation	21.5					21.5
Interest rate swap hedge	0.0
Net income (loss)	27.7			27.7
Purchase of treasury stock, shares		(5)
Purchase of treasury stock	(1.5)				(1.5)
Ending Balance (shares) at Dec. 31, 2017		995
Ending Balance at Dec. 31, 2017	212.3	$ 0.0	291.4	(61.3)	(1.5)	(16.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation	(7.4)					(7.4)
Interest rate swap hedge	0.0
Net income (loss)	$ (8.6)			(8.6)
Ending Balance (shares) at Dec. 31, 2018	995	995												0			0			0
Ending Balance at Dec. 31, 2018	$ 196.4	$ 0.0	291.4	(69.9)	(1.5)	(23.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation	(4.0)					(4.0)
Interest rate swap hedge	0.0
Net income (loss)	(19.0)			(19.0)
Ending Balance (shares) at Jun. 02, 2019		995
Ending Balance at Jun. 02, 2019	173.4	$ 0.0	291.4	(88.9)	(1.5)	(27.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(12.4)
Beginning Balance (shares) at Jun. 02, 2019		995
Beginning Balance at Jun. 02, 2019	173.4	$ 0.0	291.4	(88.9)	(1.5)	(27.6)
Beginning Balance (shares) at Jun. 02, 2019		995
Beginning Balance at Jun. 02, 2019	173.4	$ 0.0	291.4	(88.9)	$ (1.5)	(27.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation	1.7
Interest rate swap hedge	1.7
Net income (loss)	$ (17.2)
Ending Balance (shares) at Dec. 31, 2019	70,805,034						0		0	64,293,741	64,293,741	6,511,293	6,511,293	2,940,336	2,940,336	0	3,750,000	3,018,617	731,383	157,500	157,500	0
Ending Balance at Dec. 31, 2019	$ 531.8		557.5	(29.1)		3.4	$ 0.0		$ 0.0		$ 0.0		$ 0.0
Beginning Balance (shares) at Jun. 03, 2019							2,770,967		11,250,000		0		0
Beginning Balance at Jun. 03, 2019	5.0		16.9	(11.9)		0.0	$ 0.0		$ 0.0		$ 0.0		$ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Forward Purchase Shares (shares)							15,000,000
Forward Purchase Shares	0.0						$ 0.0
Additional Shares Purchased (shares)							16,149,317
Additional Shares Purchased	0.0						$ 0.0
Conversion of Forward Purchase & Additional Shares (shares)							(31,149,317)				25,454,282		5,695,035
Conversion of Forward Purchase & Additional Shares	267.0		267.0				$ 0.0				$ 0.0		$ 0.0
Shares Canceled (shares)								(3,854,664)	(3,854,664)
Shares Canceled	(33.0)		(33.0)						$ 0.0
Convert Class B (shares)								7,395,336	(7,395,336)	6,663,953	6,663,953	731,383	731,383
Convert Class B	63.4		63.4						$ 0.0		$ 0.0
Convert Public Shares (shares)											14,581,346
Convert Public Shares	125.0		125.0								$ 0.0
Convert Private Placement Warrants (shares)											658,051		84,875
Convert Private Placement Warrants	6.4		6.4								$ 0.0		$ 0.0
Issue Director Shares (shares)											13,032
Issue Director Shares	0.1		0.1								$ 0.0
Public Shares Redeemed (shares)							(2,770,967)
Public Shares Redeemed	0.0						$ 0.0
Issue restricted stock units	1.7		1.7
Stock offering (shares)											16,923,077
Stock offering	110.0		110.0								$ 0.0
Foreign currency translation	1.7					1.7
Interest rate swap hedge	1.7					1.7
Net income (loss)	$ (17.2)			(17.2)
Ending Balance (shares) at Dec. 31, 2019	70,805,034						0		0	64,293,741	64,293,741	6,511,293	6,511,293	2,940,336	2,940,336	0	3,750,000	3,018,617	731,383	157,500	157,500	0
Ending Balance at Dec. 31, 2019	$ 531.8		557.5	(29.1)		3.4	$ 0.0		$ 0.0		$ 0.0		$ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1.6)
Net income (loss)	$ (3.2)
Ending Balance (shares) at Dec. 31, 2019	70,805,034						0		0	64,293,741	64,293,741	6,511,293	6,511,293	2,940,336	2,940,336	0	3,750,000	3,018,617	731,383	157,500	157,500	0
Ending Balance at Dec. 31, 2019	$ 531.8		$ 557.5	$ (29.1)		$ 3.4	$ 0.0		$ 0.0		$ 0.0		$ 0.0