XML 15 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2020
Feb. 12, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2020    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 000-26727    
Entity Registrant Name BioMarin Pharmaceutical Inc    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 68-0397820    
Entity Address, Address Line One 770 Lindaro Street    
Entity Address, City or Town San Rafael    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94901    
City Area Code 415    
Local Phone Number 506-6700    
Title of 12(b) Security Common Stock, par value $.001    
Trading Symbol BMRN    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 13.9
Entity Common Stock, Shares Outstanding   181,829,680  
Documents Incorporated by Reference Specified portions of the registrant's definitive proxy statement for the registrant's 2021 annual meeting of stockholders, which will be filed with the Commission no later than 120 days after the end of the registrant's fiscal year ended December 31, 2020, are incorporated by reference under Part III of this Annual Report on Form 10-K.    
Amendment Flag false    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001048477