Quarterly report pursuant to Section 13 or 15(d)

Supplemental Statement of Comprehensive Income (Loss) (Details)

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Supplemental Statement of Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Condensed Financial Statements, Captions [Line Items]        
Net Income (Loss) $ 4,950 $ 3,649 $ 11,539 $ (984)
Other Comprehensive Income (Loss):        
Foreign currency translation adjustments 64 (294) (98) 686
Income tax expense (23) 103 34 (240)
Other Comprehensive Income (Loss), Net of Tax 41 (191) (64) 446
Comprehensive Income (Loss) 4,991 3,458 11,475 (538)
Comprehensive Loss attributable to Noncontrolling Interest in Subsidiary 105 0 210 0
Comprehensive Income (Loss) attributable to Era Group Inc. 5,096 3,458 11,685 (538)
Parent Company Only [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income (Loss) 4,950 3,649 11,539 (984)
Other Comprehensive Income (Loss):        
Foreign currency translation adjustments 64 (294) (98) 686
Income tax expense (23) 103 34 (240)
Other Comprehensive Income (Loss), Net of Tax 41 (191) (64) 446
Comprehensive Income (Loss) 4,991   11,475  
Comprehensive Loss attributable to Noncontrolling Interest in Subsidiary 105   210  
Comprehensive Income (Loss) attributable to Era Group Inc. 5,096 3,458 11,685 (538)
Guarantor Subsidiaries [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income (Loss) 3,795 2,938 7,631 0
Other Comprehensive Income (Loss):        
Foreign currency translation adjustments 64 (294) (98) 686
Income tax expense (23) 103 34 (240)
Other Comprehensive Income (Loss), Net of Tax 41 (191) (64) 446
Comprehensive Income (Loss) 3,836   7,567  
Comprehensive Loss attributable to Noncontrolling Interest in Subsidiary 105   210  
Comprehensive Income (Loss) attributable to Era Group Inc. 3,941 2,747 7,777 446
Non-Guarantor Subsidiaries [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income (Loss) (208) 0 (420) 0
Other Comprehensive Income (Loss):        
Foreign currency translation adjustments 0 0 0 0
Income tax expense 0 0 0 0
Other Comprehensive Income (Loss), Net of Tax 0 0 0 0
Comprehensive Income (Loss) (208)   (420)  
Comprehensive Loss attributable to Noncontrolling Interest in Subsidiary 0   0  
Comprehensive Income (Loss) attributable to Era Group Inc. (208) 0 (420) 0
Eliminations [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income (Loss) (3,587) (2,938) (7,211) 0
Other Comprehensive Income (Loss):        
Foreign currency translation adjustments (64) 294 98 (686)
Income tax expense 23 (103) (34) 240
Other Comprehensive Income (Loss), Net of Tax (41) 191 64 (446)
Comprehensive Income (Loss) (3,628)   (7,147)  
Comprehensive Loss attributable to Noncontrolling Interest in Subsidiary (105)   (210)  
Comprehensive Income (Loss) attributable to Era Group Inc. $ (3,733) $ (2,747) $ (7,357) $ (446)