v3.10.0.1
Document and Entity Information
12 Months Ended
Dec. 31, 2017
Document and Entity Information  
Entity Registrant Name RHYTHM PHARMACEUTICALS, INC.
Entity Central Index Key 0001649904
Document Type 8-K
Document Period End Date Dec. 31, 2017
Amendment Flag true
Amendment Description The Company is required in this Form 8-K to recast certain financial information included in its Annual Report on Form 10-K for the year ended December 31, 2017 (the "Form 10-K"), which predominately relates to the Company's adoption of ASU 2016-18. Other than for these updates, no other substantive changes have been made to the Form 10-K, which should be read in conjunction with this Form 8-K.
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2017
Document Fiscal Period Focus FY