Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' INVESTMENT, EARNINGS PER SHARE AND ACCUMULATED OTHER COMPREHENSIVE INCOME - Computation of Basic and Diluted EPS (Details)

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STOCKHOLDERS' INVESTMENT, EARNINGS PER SHARE AND ACCUMULATED OTHER COMPREHENSIVE INCOME - Computation of Basic and Diluted EPS (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Debt Instrument [Line Items]    
Net loss attributable to Bristow Group $ 71,477 $ (169,246)
Less: PIK dividends (12,039)  
Plus: Deemed contribution from conversion of preferred stock 144,986  
Loss available to common stockholders – basic 204,424 (169,246)
Less: Preferred stock adjustments (3,377)  
Loss available to common stockholders – diluted $ 201,047 $ (169,246)
Weighted average number of common shares outstanding – basic (in shares) [1] 11,102,611 35,918,916
Net effect of dilutive preferred stock (in shares) 27,885,917  
Net effect of dilutive stock options and restricted stock awards based on the treasury stock method (in shares)   0
Weighted average number of common shares outstanding – diluted (in shares) [1] 38,988,528 35,918,916
Basic earnings per common share (in dollars per share) $ 18.41 $ (4.71)
Diluted earnings per common share (in dollars per share) $ 5.16 $ (4.71)
4½% Convertible Senior Notes due 2023 | Convertible Debt    
Debt Instrument [Line Items]    
Stated interest rate 4.50%  
Stock Options and Restricted Stock    
Debt Instrument [Line Items]    
Weighted average common shares excluded from computation (in shares) 1,676,354 3,881,347
[1] See Note 13 to the condensed consolidated financial statements for details on Weighted average common shares outstanding.