Quarterly report pursuant to Section 13 or 15(d)

GUARANTORS OF SECURITIES (Condensed Statement of Comprehensive Income) (Details)

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GUARANTORS OF SECURITIES (Condensed Statement of Comprehensive Income) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Condensed Statement of Income Captions [Line Items]        
Net income (loss) $ (3,072) $ (4,510) $ (8,859) $ (8,460)
Other comprehensive loss:        
Foreign currency translation adjustments 0 0 (2) 0
Income tax benefit 0 0 0 0
Total other comprehensive loss 0 0 (2) 0
Comprehensive income (loss) (3,072) (4,510) (8,861) (8,460)
Comprehensive income (loss) attributable to non-controlling interest in subsidiary 285 6,448 452 6,580
Comprehensive income (loss) attributable to Era Group Inc. (2,787) 1,938 (8,409) (1,880)
Reportable Legal Entities | Parent        
Condensed Statement of Income Captions [Line Items]        
Net income (loss) (2,787) 1,938 (8,407) (1,880)
Other comprehensive loss:        
Foreign currency translation adjustments 0 0 0 0
Income tax benefit 0 0 0 0
Total other comprehensive loss 0 0 0 0
Comprehensive income (loss) (2,787) 1,938 (8,407) (1,880)
Comprehensive income (loss) attributable to non-controlling interest in subsidiary 0 0 0 0
Comprehensive income (loss) attributable to Era Group Inc. (2,787) 1,938 (8,407) (1,880)
Reportable Legal Entities | Guarantors        
Condensed Statement of Income Captions [Line Items]        
Net income (loss) 4,920 1,927 5,893 7,417
Other comprehensive loss:        
Foreign currency translation adjustments 0 0 (2) 0
Income tax benefit 0 0 0 0
Total other comprehensive loss 0 0 (2) 0
Comprehensive income (loss) 4,920 1,927 5,891 7,417
Comprehensive income (loss) attributable to non-controlling interest in subsidiary 0 6,349 0 6,349
Comprehensive income (loss) attributable to Era Group Inc. 4,920 8,276 5,891 13,766
Reportable Legal Entities | Non-guarantors        
Condensed Statement of Income Captions [Line Items]        
Net income (loss) (4,625) (2,690) (8,201) (8,041)
Other comprehensive loss:        
Foreign currency translation adjustments 0 0 0 0
Income tax benefit 0 0 0 0
Total other comprehensive loss 0 0 0 0
Comprehensive income (loss) (4,625) (2,690) (8,201) (8,041)
Comprehensive income (loss) attributable to non-controlling interest in subsidiary 285 99 452 231
Comprehensive income (loss) attributable to Era Group Inc. (4,340) (2,591) (7,749) (7,810)
Eliminations        
Condensed Statement of Income Captions [Line Items]        
Net income (loss) (580) (5,685) 1,856 (5,956)
Other comprehensive loss:        
Foreign currency translation adjustments 0 0 0 0
Income tax benefit 0 0 0 0
Total other comprehensive loss 0 0 0 0
Comprehensive income (loss) (580) (5,685) 1,856 (5,956)
Comprehensive income (loss) attributable to non-controlling interest in subsidiary 0 0 0 0
Comprehensive income (loss) attributable to Era Group Inc. $ (580) $ (5,685) $ 1,856 $ (5,956)