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 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Condensed Financial Statements, Captions [Line Items]        
Net Income $ 5,088 $ 5,200 $ 16,627 $ 4,216
Other Comprehensive Income:        
Foreign currency translation adjustments 234 112 135 798
Income tax expense (82) (39) (47) (279)
Other Comprehensive Income (Loss), Net of Tax 152 73 88 519
Comprehensive Income 5,240 5,273 16,715 4,735
Comprehensive Loss Attributable to Noncontrolling Interest in Subsidiary 116 0 326 0
Comprehensive Income Attributable to Era Group Inc. 5,356 5,273 17,041 4,735
Parent Company Only [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income 5,088 5,200 16,627 4,216
Other Comprehensive Income:        
Foreign currency translation adjustments 234 112 135 798
Income tax expense (82) (39) (47) (279)
Other Comprehensive Income (Loss), Net of Tax 152 73 88 519
Comprehensive Income 5,240   16,715  
Comprehensive Loss Attributable to Noncontrolling Interest in Subsidiary 116   326  
Comprehensive Income Attributable to Era Group Inc. 5,356 5,273 17,041 4,735
Guarantor Subsidiaries [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income 3,745 3,856 11,376 2,829
Other Comprehensive Income:        
Foreign currency translation adjustments 234 112 135 798
Income tax expense (82) (39) (47) (279)
Other Comprehensive Income (Loss), Net of Tax 152 73 88 519
Comprehensive Income 3,897   11,464  
Comprehensive Loss Attributable to Noncontrolling Interest in Subsidiary 116   326  
Comprehensive Income Attributable to Era Group Inc. 4,013 3,929 11,790 3,348
Non-Guarantor Subsidiaries [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income (231) 0 (652) (1)
Other Comprehensive Income:        
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 (231)   (652)  
Comprehensive Loss Attributable to Noncontrolling Interest in Subsidiary 0   0  
Comprehensive Income Attributable to Era Group Inc. (231) 0 (652) (1)
Eliminations [Member]
        
Condensed Financial Statements, Captions [Line Items]        
Net Income (3,514) (3,856) (10,724) (2,828)
Other Comprehensive Income:        
Foreign currency translation adjustments (234) (112) (135) (798)
Income tax expense 82 39 47 279
Other Comprehensive Income (Loss), Net of Tax (152) (73) (88) (519)
Comprehensive Income (3,666)   (10,812)  
Comprehensive Loss Attributable to Noncontrolling Interest in Subsidiary (116)   (326)  
Comprehensive Income Attributable to Era Group Inc. $ (3,782) $ (3,929) $ (11,138) $ (3,347)