Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Jul. 27, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-38348
Entity Registrant Name	RANPAK HOLDINGS CORP.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	98-1377160
Entity Address, Address Line One	7990 Auburn Road
Entity Address, City or Town	Concord Township
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44077
City Area Code	440
Local Phone Number	354-4445
Title of 12(b) Security	Class A Ordinary Shares, par value $0.0001 per share
Trading Symbol	PACK
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Central Index Key	0001712463
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Class A Ordinary Shares, par value $0.0001 per share
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		78,473,776
Class C
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		2,921,099