v3.19.3
Cover
Nov. 05, 2019
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Nov. 05, 2019
Entity File Number 001-37359
Entity Registrant Name Blueprint Medicines Corporation
Entity Central Index Key 0001597264
Entity Tax Identification Number 26-3632015
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 45 Sidney Street
Entity Address, City or Town Cambridge
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02139
City Area Code 617
Local Phone Number 374-7580
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common stock, par value $0.001 per share
Trading Symbol BPMC
Security Exchange Name NASDAQ
Entity Emerging Growth Company false