| Cover | May 26, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | May 26, 2021 |
| Entity File Number | 001-38348 |
| Entity Registrant Name | RANPAK HOLDINGS CORP. |
| Entity Central Index Key | 0001712463 |
| Entity Tax Identification Number | 98-1377160 |
| Entity Incorporation, State or Country Code | DE |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A Ordinary Shares, par value $0.0001 per share |
| Trading Symbol | PACK |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Entity Information, Former Legal or Registered Name | Not Applicable |
