Unaudited Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Loss	Ordinary Class A Common Stock	Ordinary Class B Common Stock	Common Class A	Common Class A Common Stock	Common Class C	Common Class C Common Stock
Beginning Balance (shares) at Dec. 31, 2017		995
Beginning Balance at Dec. 31, 2017	$ 212.3	$ 0.0	$ 291.4	$ (61.3)	$ (1.5)	$ (16.3)
Other comprehensive income/(loss):
Foreign currency translation	4.5					4.5
Net loss	(6.8)			(6.8)
Ending Balance (shares) at Mar. 31, 2018		995
Ending Balance at Mar. 31, 2018	210.0	$ 0.0	291.4	(68.1)	(1.5)	(11.8)
Beginning Balance (shares) at Dec. 31, 2017		995
Beginning Balance at Dec. 31, 2017	212.3	$ 0.0	291.4	(61.3)	(1.5)	(16.3)
Other comprehensive income/(loss):
Net loss	(4.9)
Ending Balance (shares) at Jun. 30, 2018		995
Ending Balance at Jun. 30, 2018	203.1	$ 0.0	291.4	(66.2)	(1.5)	(20.6)
Beginning Balance (shares) at Mar. 31, 2018		995
Beginning Balance at Mar. 31, 2018	210.0	$ 0.0	291.4	(68.1)	(1.5)	(11.8)
Other comprehensive income/(loss):
Foreign currency translation	(8.8)					(8.8)
Net loss	1.9
Ending Balance (shares) at Jun. 30, 2018		995
Ending Balance at Jun. 30, 2018	$ 203.1	$ 0.0	291.4	(66.2)	(1.5)	(20.6)
Beginning Balance (shares) at Dec. 31, 2018	995	995
Beginning Balance at Dec. 31, 2018	$ 196.4	$ 0.0	291.4	(69.9)	(1.5)	(23.6)
Other comprehensive income/(loss):
Foreign currency translation	(3.4)					(3.4)
Net loss	(3.2)			(3.2)
Ending Balance (shares) at Mar. 31, 2019		995
Ending Balance at Mar. 31, 2019	$ 189.8	$ 0.0	291.4	(73.1)	(1.5)	(27.0)
Beginning Balance (shares) at Dec. 31, 2018	995	995
Beginning Balance at Dec. 31, 2018	$ 196.4	$ 0.0	291.4	(69.9)	(1.5)	(23.6)
Other comprehensive income/(loss):
Net loss	(19.0)
Ending Balance (shares) at Jun. 02, 2019		0
Ending Balance at Jun. 02, 2019	0.0	$ 0.0	0.0	0.0	0.0	0.0
Beginning Balance (shares) at Mar. 31, 2019		995
Beginning Balance at Mar. 31, 2019	189.8	$ 0.0	291.4	(73.1)	(1.5)	(27.0)
Other comprehensive income/(loss):
Foreign currency translation	74.1					74.1
Net loss	(15.8)
Purchase of Ranpak Corp. (shares)		(995)
Purchase of Ranpak Corp.	(248.1)		(291.4)	88.9	1.5	(47.1)
Ending Balance (shares) at Jun. 02, 2019		0
Ending Balance at Jun. 02, 2019	0.0	$ 0.0	0.0	0.0	$ 0.0	0.0
Other comprehensive income/(loss):
Net loss	(10.5)
Ending Balance (shares) at Jun. 30, 2019							0	0	47,357,632	47,357,632	6,511,293	6,511,293
Ending Balance at Jun. 30, 2019	410.7		428.3	(22.4)		4.8	$ 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	256.1		256.1				$ 0.0			$ 0.0		$ 0.0
Shares Canceled (shares)								(3,854,664)
Shares Canceled	(31.7)		(31.7)					$ 0.0
Convert Class B (shares)								(7,395,336)		6,663,953		731,383
Convert Class B	60.8		60.8					$ 0.0		$ 0.0		$ 0.0
Convert Public Shares (shares)										14,581,346
Convert Public Shares	119.9		119.9							$ 0.0
Convert Private Placement Warrants (shares)										658,051		84,875
Convert Private Placement Warrants	6.1		6.1							$ 0.0		$ 0.0
Public Shares Redeemed (shares)							(2,770,967)
Public Shares Redeemed	0.0						$ 0.0
Issue restricted stock units	0.2		0.2
Other comprehensive income/(loss):
Foreign currency translation	4.8					4.8
Net loss	(10.5)			(10.5)
Ending Balance (shares) at Jun. 30, 2019							0	0	47,357,632	47,357,632	6,511,293	6,511,293
Ending Balance at Jun. 30, 2019	$ 410.7		$ 428.3	$ (22.4)		$ 4.8	$ 0.0	$ 0.0		$ 0.0		$ 0.0