Quarterly report pursuant to Section 13 or 15(d)

BUSINESS COMBINATIONS - Schedule of Pro Forma Consolidated Financial Information (Details)

v3.20.4
BUSINESS COMBINATIONS - Schedule of Pro Forma Consolidated Financial Information (Details) - USD ($)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 9 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2020
Era        
Business Acquisition [Line Items]        
Total revenues   $ 240,909 $ 309,897 $ 919,860
Net loss   (135,096) (55,059) (59,666)
Net loss attributable to Bristow Group Inc.   $ (134,968) $ (54,920) (59,301)
Lider        
Business Acquisition [Line Items]        
Impairment of investment in unconsolidated affiliates $ 18,700     $ 18,700