| Document and Entity Information - USD ($) $ in Thousands | 12 Months Ended | ||
| Dec. 31, 2022 | Mar. 28, 2024 | Jun. 30, 2022 | |
| Cover [Abstract] | |||
| Entity Registrant Name | Party City Holdco Inc. | ||
| Document Type | 10-K/A | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Public Float | $ 149,147,731 | ||
| Entity Common Stock, Shares Outstanding | 0 | ||
| Amendment Flag | true | ||
| Entity Central Index Key | 0001592058 | ||
| Entity Filer Category | Accelerated Filer | ||
| Document Period End Date | Dec. 31, 2022 | ||
| Document Fiscal Year Focus | 2022 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | No | ||
| Entity Interactive Data Current | Yes | ||
| Entity Shell Company | false | ||
| Entity Small Business | false | ||
| Entity Emerging Growth Company | false | ||
| Entity File Number | 001-37344 | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Tax Identification Number | 46-0539758 | ||
| Entity Address, Address Line One | 100 Tice Blvd. | ||
| Entity Address, City or Town | Woodcliff Lake | ||
| Entity Address, State or Province | NJ | ||
| Entity Address, Postal Zip Code | 07677 | ||
| City Area Code | 973 | ||
| Local Phone Number | 453-8601 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| ICFR Auditor Attestation Flag | true | ||
| Auditor Name | BDO USA, P.C. | ||
| Auditor Location | New York, NY | ||
| Auditor Firm Id | 243 | ||
| Amendment Description | EXPLANATORY NOTEThis Amendment No. 1 to Form 10-K (this “Amendment”) amends the Annual Report on Form 10-K of Party City Holdco Inc. (the “Company”) for the year ended December 31, 2022, originally filed with the Securities and Exchange Commission (the “SEC”) on March 28, 2024 (the “Original 2022 Form 10-K”). We are filing this Amendment to remove the consent of Ernst & Young LLP previously filed as Exhibit 23.1 to the Original 2022 Form 10-K.As required by Rule 12b-15 of the Securities Exchange Act of 1934, as amended, updated certifications by the Company’s Principal Executive Officer and Principal Financial Officer are filed as exhibits 31.1 and 31.2 to this Amendment in Part IV, Item 15.Except as set forth in this Amendment, no other changes have been made to the Original 2022 Form 10-K. The Original 2022 Form 10-K has not been amended or updated to reflect events occurring after March 28, 2024, except as specifically set forth in this Amendment. |
