GUARANTORS OF SECURITIES (Condensed Income Statement) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
| Condensed Income Statements, Captions [Line Items] |
|
|
|
|
| Revenues |
$ 54,610
|
$ 61,385
|
$ 169,660
|
$ 173,790
|
| Costs and expenses: |
|
|
|
|
| Operating |
36,513
|
43,987
|
114,505
|
123,079
|
| Administrative and general |
8,837
|
10,928
|
35,714
|
31,211
|
| Depreciation |
9,541
|
12,103
|
30,011
|
35,635
|
| Total costs and expenses |
54,891
|
67,018
|
180,230
|
189,925
|
| Gains on asset dispositions, net |
(148)
|
(122)
|
2,269
|
5,048
|
| Loss on impairment |
0
|
(117,018)
|
0
|
(117,018)
|
| Litigation settlement proceeds |
42,000
|
0
|
42,000
|
0
|
| Operating income (loss) |
41,571
|
(122,773)
|
33,699
|
(128,105)
|
| Other income (expense): |
|
|
|
|
| Interest income |
732
|
206
|
1,224
|
641
|
| Interest expense |
(3,549)
|
(4,097)
|
(11,646)
|
(11,620)
|
| Foreign currency gains (losses), net |
(94)
|
12
|
(1,095)
|
(96)
|
| Gain on debt extinguishment |
0
|
0
|
175
|
0
|
| Other, net |
15
|
(33)
|
21
|
(29)
|
| Total other income (expense) |
(2,896)
|
(3,912)
|
(11,321)
|
(11,104)
|
| Income (loss) before income taxes and equity earnings |
38,675
|
(126,685)
|
22,378
|
(139,209)
|
| Income tax expense |
7,861
|
(45,237)
|
4,549
|
(48,066)
|
| Income (loss) before equity earnings |
30,814
|
(81,448)
|
17,829
|
(91,143)
|
| Equity earnings, net of tax |
465
|
233
|
1,577
|
1,069
|
| Equity in earnings (losses) of subsidiaries |
465
|
0
|
1,577
|
0
|
| Net income (loss) |
31,279
|
(81,215)
|
19,406
|
(90,074)
|
| Net loss (income) attributable to non-controlling interest in subsidiary |
10
|
(233)
|
310
|
219
|
| Net income (loss) attributable to Era Group Inc. |
31,289
|
(81,448)
|
19,716
|
(89,855)
|
| Reportable Legal Entities | Parent |
|
|
|
|
| Condensed Income Statements, Captions [Line Items] |
|
|
|
|
| Revenues |
0
|
0
|
0
|
0
|
| Costs and expenses: |
|
|
|
|
| Operating |
0
|
0
|
0
|
0
|
| Administrative and general |
901
|
2,305
|
14,087
|
5,280
|
| Depreciation |
0
|
0
|
0
|
0
|
| Total costs and expenses |
901
|
2,305
|
14,087
|
5,280
|
| Gains on asset dispositions, net |
0
|
0
|
0
|
0
|
| Loss on impairment |
|
0
|
|
0
|
| Litigation settlement proceeds |
42,000
|
|
42,000
|
|
| Operating income (loss) |
41,099
|
(2,305)
|
27,913
|
(5,280)
|
| Other income (expense): |
|
|
|
|
| Interest income |
171
|
47
|
180
|
96
|
| Interest expense |
(3,330)
|
(3,838)
|
(10,925)
|
(10,800)
|
| Foreign currency gains (losses), net |
(10)
|
66
|
(66)
|
220
|
| Gain on debt extinguishment |
|
|
0
|
|
| Other, net |
0
|
0
|
0
|
0
|
| Total other income (expense) |
(3,169)
|
(3,725)
|
(10,811)
|
(10,484)
|
| Income (loss) before income taxes and equity earnings |
37,930
|
(6,030)
|
17,102
|
(15,764)
|
| Income tax expense |
3,928
|
(2,114)
|
1,075
|
(5,297)
|
| Income (loss) before equity earnings |
34,002
|
(3,916)
|
16,027
|
(10,467)
|
| Equity earnings, net of tax |
|
0
|
|
0
|
| Equity in earnings (losses) of subsidiaries |
(2,747)
|
(77,532)
|
3,655
|
(79,388)
|
| Net income (loss) |
31,255
|
(81,448)
|
19,682
|
(89,855)
|
| Net loss (income) attributable to non-controlling interest in subsidiary |
0
|
0
|
0
|
0
|
| Net income (loss) attributable to Era Group Inc. |
31,255
|
(81,448)
|
19,682
|
(89,855)
|
| Reportable Legal Entities | Guarantors |
|
|
|
|
| Condensed Income Statements, Captions [Line Items] |
|
|
|
|
| Revenues |
48,631
|
51,919
|
148,512
|
151,550
|
| Costs and expenses: |
|
|
|
|
| Operating |
29,888
|
35,826
|
92,317
|
98,117
|
| Administrative and general |
6,957
|
7,306
|
18,182
|
21,648
|
| Depreciation |
9,316
|
11,851
|
29,283
|
34,898
|
| Total costs and expenses |
46,161
|
54,983
|
139,782
|
154,663
|
| Gains on asset dispositions, net |
(148)
|
(122)
|
2,269
|
5,048
|
| Loss on impairment |
|
(116,586)
|
|
(116,586)
|
| Litigation settlement proceeds |
0
|
|
0
|
|
| Operating income (loss) |
2,322
|
(119,772)
|
10,999
|
(114,651)
|
| Other income (expense): |
|
|
|
|
| Interest income |
448
|
102
|
878
|
320
|
| Interest expense |
(204)
|
(170)
|
(595)
|
(627)
|
| Foreign currency gains (losses), net |
(16)
|
85
|
(141)
|
253
|
| Gain on debt extinguishment |
|
|
0
|
|
| Other, net |
21
|
(1)
|
31
|
0
|
| Total other income (expense) |
249
|
16
|
173
|
(54)
|
| Income (loss) before income taxes and equity earnings |
2,571
|
(119,756)
|
11,172
|
(114,705)
|
| Income tax expense |
3,933
|
(43,276)
|
3,474
|
(43,282)
|
| Income (loss) before equity earnings |
(1,362)
|
(76,480)
|
7,698
|
(71,423)
|
| Equity earnings, net of tax |
|
233
|
|
1,069
|
| Equity in earnings (losses) of subsidiaries |
465
|
0
|
1,577
|
0
|
| Net income (loss) |
(897)
|
(76,247)
|
9,275
|
(70,354)
|
| Net loss (income) attributable to non-controlling interest in subsidiary |
0
|
0
|
0
|
0
|
| Net income (loss) attributable to Era Group Inc. |
(897)
|
(76,247)
|
9,275
|
(70,354)
|
| Reportable Legal Entities | Non-guarantors |
|
|
|
|
| Condensed Income Statements, Captions [Line Items] |
|
|
|
|
| Revenues |
13,623
|
16,729
|
42,252
|
46,132
|
| Costs and expenses: |
|
|
|
|
| Operating |
14,302
|
15,424
|
43,325
|
48,854
|
| Administrative and general |
979
|
1,317
|
3,445
|
4,283
|
| Depreciation |
225
|
252
|
728
|
737
|
| Total costs and expenses |
15,506
|
16,993
|
47,498
|
53,874
|
| Gains on asset dispositions, net |
0
|
0
|
0
|
0
|
| Loss on impairment |
|
(432)
|
|
(432)
|
| Litigation settlement proceeds |
0
|
|
0
|
|
| Operating income (loss) |
(1,883)
|
(696)
|
(5,246)
|
(8,174)
|
| Other income (expense): |
|
|
|
|
| Interest income |
113
|
57
|
166
|
225
|
| Interest expense |
(15)
|
(89)
|
(126)
|
(193)
|
| Foreign currency gains (losses), net |
(68)
|
(139)
|
(888)
|
(569)
|
| Gain on debt extinguishment |
|
|
175
|
|
| Other, net |
(6)
|
(32)
|
(10)
|
(29)
|
| Total other income (expense) |
24
|
(203)
|
(683)
|
(566)
|
| Income (loss) before income taxes and equity earnings |
(1,859)
|
(899)
|
(5,929)
|
(8,740)
|
| Income tax expense |
0
|
153
|
0
|
513
|
| Income (loss) before equity earnings |
(1,859)
|
(1,052)
|
(5,929)
|
(9,253)
|
| Equity earnings, net of tax |
|
0
|
|
0
|
| Equity in earnings (losses) of subsidiaries |
0
|
0
|
0
|
0
|
| Net income (loss) |
(1,859)
|
(1,052)
|
(5,929)
|
(9,253)
|
| Net loss (income) attributable to non-controlling interest in subsidiary |
10
|
(233)
|
310
|
219
|
| Net income (loss) attributable to Era Group Inc. |
(1,849)
|
(1,285)
|
(5,619)
|
(9,034)
|
| Eliminations |
|
|
|
|
| Condensed Income Statements, Captions [Line Items] |
|
|
|
|
| Revenues |
(7,644)
|
(7,263)
|
(21,104)
|
(23,892)
|
| Costs and expenses: |
|
|
|
|
| Operating |
(7,677)
|
(7,263)
|
(21,137)
|
(23,892)
|
| Administrative and general |
0
|
0
|
0
|
0
|
| Depreciation |
0
|
0
|
0
|
0
|
| Total costs and expenses |
(7,677)
|
(7,263)
|
(21,137)
|
(23,892)
|
| Gains on asset dispositions, net |
0
|
0
|
0
|
0
|
| Loss on impairment |
|
0
|
|
|
| Litigation settlement proceeds |
0
|
|
0
|
|
| Operating income (loss) |
33
|
0
|
33
|
0
|
| Other income (expense): |
|
|
|
|
| Interest income |
0
|
0
|
0
|
0
|
| Interest expense |
0
|
0
|
0
|
0
|
| Foreign currency gains (losses), net |
0
|
0
|
0
|
0
|
| Gain on debt extinguishment |
|
|
0
|
|
| Other, net |
0
|
0
|
0
|
0
|
| Total other income (expense) |
0
|
0
|
0
|
0
|
| Income (loss) before income taxes and equity earnings |
33
|
0
|
33
|
0
|
| Income tax expense |
0
|
0
|
0
|
0
|
| Income (loss) before equity earnings |
33
|
0
|
33
|
0
|
| Equity earnings, net of tax |
|
0
|
|
0
|
| Equity in earnings (losses) of subsidiaries |
2,747
|
77,532
|
(3,655)
|
79,388
|
| Net income (loss) |
2,780
|
77,532
|
(3,622)
|
79,388
|
| Net loss (income) attributable to non-controlling interest in subsidiary |
0
|
0
|
0
|
0
|
| Net income (loss) attributable to Era Group Inc. |
$ 2,780
|
$ 77,532
|
$ (3,622)
|
$ 79,388
|