Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
12 Months Ended
Mar. 31, 2022
May 24, 2022
Sep. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Mar. 31, 2022    
Current Fiscal Year End Date --03-31    
Document Transition Report false    
Entity File Number 001-35701    
Entity Registrant Name Bristow Group Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 72-1455213    
Entity Address, Address Line One 3151 Briarpark Drive, Suite 700    
Entity Address, City or Town Houston,    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77042    
City Area Code 713    
Local Phone Number 267-7600    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol VTOL    
Security Exchange Name NYSE    
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     $ 739,571,514
Entity Common Stock, Shares Outstanding   28,299,453  
Entity Central Index Key 0001525221    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false