| Document and Entity Information | Dec. 19, 2022 |
| Cover [Abstract] | |
| Amendment Flag | true |
| Entity Central Index Key | 0001631574 |
| Document Type | 8-K/A |
| Document Period End Date | Dec. 19, 2022 |
| Entity Registrant Name | WAVE LIFE SCIENCES LTD. |
| Entity Incorporation State Country Code | U0 |
| Entity File Number | 001-37627 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Address, Address Line One | 7 Straits View #12-00 |
| Entity Address, Address Line Two | Marina One |
| Entity Address, City or Town | East Tower |
| Entity Address, Country | SG |
| Entity Address, Postal Zip Code | 018936 |
| City Area Code | 65 |
| Local Phone Number | 6236 3388 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | $0 Par Value Ordinary Shares |
| Trading Symbol | WVE |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Amendment Description | This Amendment No. 1 on Form 8-K/A (the “Amended Current Report”) amends the Current Report on Form 8-K of Wave Life Sciences Ltd. (the “Company”), originally filed with the Securities and Exchange Commission on December 19, 2022 (the “Original Filing”). Its sole purpose is to make certain corrections to the version of the press release that was attached as Exhibit 99.1 to the Original Filing. The corrected version of the press release that was issued by the Company is attached as Exhibit 99.1 to this Amended Current Report. |
