Supplemental Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands |
3 Months Ended |
12 Months Ended |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Condensed Income Statements, Captions [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
Operating revenues |
$ 73,943
|
$ 69,741
|
$ 70,738
|
$ 67,415
|
$ 74,689
|
$ 90,510
|
$ 86,580
|
$ 79,443
|
$ 281,837
|
$ 331,222
|
$ 298,959
|
Costs and expenses: |
|
|
|
|
|
|
|
|
|
|
|
Operating |
|
|
|
|
|
|
|
|
171,481
|
204,373
|
186,612
|
Administrative and general |
|
|
|
|
|
|
|
|
42,812
|
43,987
|
38,924
|
Depreciation |
|
|
|
|
|
|
|
|
47,337
|
46,312
|
45,561
|
Total costs and expenses |
|
|
|
|
|
|
|
|
261,630
|
294,672
|
271,097
|
Gains on asset dispositions, net |
|
|
|
|
|
|
|
|
5,953
|
6,101
|
18,301
|
Goodwill impairment |
|
|
|
|
|
|
|
|
(1,866)
|
0
|
0
|
Operating income |
4,783
|
5,123
|
8,535
|
5,853
|
7,445
|
11,583
|
13,550
|
10,073
|
24,294
|
42,651
|
46,163
|
Other income (expense): |
|
|
|
|
|
|
|
|
|
|
|
Interest income |
|
|
|
|
|
|
|
|
1,191
|
540
|
591
|
Interest expense |
|
|
|
|
|
|
|
|
(13,526)
|
(14,778)
|
(18,050)
|
SEACOR management fees |
|
|
|
|
|
|
|
|
0
|
0
|
(168)
|
Derivative losses, net |
|
|
|
|
|
|
|
|
(18)
|
(944)
|
(104)
|
Note receivable impairment |
|
|
|
|
|
|
|
|
0
|
(2,457)
|
0
|
Foreign currency gains, net |
|
|
|
|
|
|
|
|
(2,590)
|
(2,377)
|
698
|
Gains on debt extinguishment |
|
|
|
|
|
|
|
|
(1,617)
|
0
|
0
|
Gain on sale of FBO |
|
|
|
|
|
|
|
|
12,946
|
0
|
0
|
Other, net |
|
|
|
|
|
|
|
|
45
|
(4)
|
19
|
Total other income (expense) |
|
|
|
|
|
|
|
|
(335)
|
(20,020)
|
(17,014)
|
Income before income tax expense and equity earnings (losses) |
|
|
|
|
|
|
|
|
23,959
|
22,631
|
29,149
|
Income tax expense (benefit) |
|
|
|
|
|
|
|
|
14,117
|
8,285
|
11,727
|
Income before equity earnings (losses) |
|
|
|
|
|
|
|
|
9,842
|
14,346
|
17,422
|
Equity losses, net of tax |
|
|
|
|
|
|
|
|
(1,943)
|
2,675
|
882
|
Equity in earnings (losses) of subsidiaries |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Net income |
(3,620)
|
653
|
11,105
|
(239)
|
3,140
|
4,311
|
5,196
|
4,374
|
7,899
|
17,021
|
18,304
|
Net loss attributable to noncontrolling interest in subsidiaries |
|
|
|
|
|
|
|
|
806
|
96
|
401
|
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest |
|
|
|
|
|
|
|
|
(806)
|
(96)
|
(401)
|
Net income attributable to Era Group Inc. |
|
|
|
|
|
|
|
|
8,705
|
17,117
|
18,705
|
Accretion of redemption value on Series A Preferred Stock |
|
|
|
|
|
|
|
|
0
|
0
|
721
|
Net income attributable to common shares |
$ (3,447)
|
$ 861
|
$ 11,333
|
$ (42)
|
$ 3,185
|
$ 4,266
|
$ 5,221
|
$ 4,445
|
8,705
|
17,117
|
17,984
|
Parent |
|
|
|
|
|
|
|
|
|
|
|
Condensed Income Statements, Captions [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
Operating revenues |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Costs and expenses: |
|
|
|
|
|
|
|
|
|
|
|
Operating |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Administrative and general |
|
|
|
|
|
|
|
|
6,484
|
7,132
|
4,329
|
Depreciation |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Total costs and expenses |
|
|
|
|
|
|
|
|
6,484
|
7,132
|
4,329
|
Gains on asset dispositions, net |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Goodwill impairment |
|
|
|
|
|
|
|
|
0
|
|
|
Operating income |
|
|
|
|
|
|
|
|
(6,484)
|
(7,132)
|
(4,329)
|
Other income (expense): |
|
|
|
|
|
|
|
|
|
|
|
Interest income |
|
|
|
|
|
|
|
|
16
|
75
|
80
|
Interest expense |
|
|
|
|
|
|
|
|
(12,479)
|
(13,957)
|
(16,972)
|
SEACOR management fees |
|
|
|
|
|
|
|
|
|
|
(168)
|
Derivative losses, net |
|
|
|
|
|
|
|
|
0
|
(785)
|
0
|
Note receivable impairment |
|
|
|
|
|
|
|
|
|
(2,457)
|
|
Foreign currency gains, net |
|
|
|
|
|
|
|
|
569
|
2,163
|
0
|
Gains on debt extinguishment |
|
|
|
|
|
|
|
|
(1,617)
|
|
|
Gain on sale of FBO |
|
|
|
|
|
|
|
|
12,946
|
|
|
Other, net |
|
|
|
|
|
|
|
|
(3)
|
10
|
13
|
Total other income (expense) |
|
|
|
|
|
|
|
|
2,666
|
(14,951)
|
(17,047)
|
Income before income tax expense and equity earnings (losses) |
|
|
|
|
|
|
|
|
(3,818)
|
(22,083)
|
(21,376)
|
Income tax expense (benefit) |
|
|
|
|
|
|
|
|
(3,368)
|
(8,081)
|
(8,589)
|
Income before equity earnings (losses) |
|
|
|
|
|
|
|
|
(450)
|
(14,002)
|
(12,787)
|
Equity losses, net of tax |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Equity in earnings (losses) of subsidiaries |
|
|
|
|
|
|
|
|
9,155
|
31,119
|
31,492
|
Net income |
|
|
|
|
|
|
|
|
8,705
|
17,117
|
18,705
|
Net loss attributable to noncontrolling interest in subsidiaries |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Net income attributable to Era Group Inc. |
|
|
|
|
|
|
|
|
8,705
|
17,117
|
18,705
|
Accretion of redemption value on Series A Preferred Stock |
|
|
|
|
|
|
|
|
|
|
721
|
Net income attributable to common shares |
|
|
|
|
|
|
|
|
|
|
17,984
|
Guarantors |
|
|
|
|
|
|
|
|
|
|
|
Condensed Income Statements, Captions [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
Operating revenues |
|
|
|
|
|
|
|
|
262,898
|
330,393
|
298,269
|
Costs and expenses: |
|
|
|
|
|
|
|
|
|
|
|
Operating |
|
|
|
|
|
|
|
|
149,702
|
204,271
|
186,041
|
Administrative and general |
|
|
|
|
|
|
|
|
33,326
|
37,139
|
34,856
|
Depreciation |
|
|
|
|
|
|
|
|
46,722
|
45,772
|
45,005
|
Total costs and expenses |
|
|
|
|
|
|
|
|
229,750
|
287,182
|
265,902
|
Gains on asset dispositions, net |
|
|
|
|
|
|
|
|
8,582
|
6,101
|
18,301
|
Goodwill impairment |
|
|
|
|
|
|
|
|
(352)
|
|
|
Operating income |
|
|
|
|
|
|
|
|
41,378
|
49,312
|
50,668
|
Other income (expense): |
|
|
|
|
|
|
|
|
|
|
|
Interest income |
|
|
|
|
|
|
|
|
900
|
460
|
508
|
Interest expense |
|
|
|
|
|
|
|
|
(773)
|
(821)
|
(1,078)
|
SEACOR management fees |
|
|
|
|
|
|
|
|
|
|
0
|
Derivative losses, net |
|
|
|
|
|
|
|
|
(18)
|
(159)
|
(104)
|
Note receivable impairment |
|
|
|
|
|
|
|
|
|
0
|
|
Foreign currency gains, net |
|
|
|
|
|
|
|
|
(3,119)
|
(4,540)
|
698
|
Gains on debt extinguishment |
|
|
|
|
|
|
|
|
0
|
|
|
Gain on sale of FBO |
|
|
|
|
|
|
|
|
0
|
|
|
Other, net |
|
|
|
|
|
|
|
|
63
|
(14)
|
6
|
Total other income (expense) |
|
|
|
|
|
|
|
|
(2,947)
|
(5,074)
|
30
|
Income before income tax expense and equity earnings (losses) |
|
|
|
|
|
|
|
|
38,431
|
44,238
|
50,698
|
Income tax expense (benefit) |
|
|
|
|
|
|
|
|
17,625
|
16,192
|
20,386
|
Income before equity earnings (losses) |
|
|
|
|
|
|
|
|
20,806
|
28,046
|
30,312
|
Equity losses, net of tax |
|
|
|
|
|
|
|
|
(1,943)
|
2,675
|
882
|
Equity in earnings (losses) of subsidiaries |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Net income |
|
|
|
|
|
|
|
|
18,863
|
30,721
|
31,194
|
Net loss attributable to noncontrolling interest in subsidiaries |
|
|
|
|
|
|
|
|
376
|
96
|
401
|
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest |
|
|
|
|
|
|
|
|
376
|
96
|
401
|
Net income attributable to Era Group Inc. |
|
|
|
|
|
|
|
|
19,239
|
30,817
|
31,595
|
Accretion of redemption value on Series A Preferred Stock |
|
|
|
|
|
|
|
|
|
|
0
|
Net income attributable to common shares |
|
|
|
|
|
|
|
|
|
|
31,595
|
Non-guarantors |
|
|
|
|
|
|
|
|
|
|
|
Condensed Income Statements, Captions [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
Operating revenues |
|
|
|
|
|
|
|
|
18,952
|
1,227
|
1,109
|
Costs and expenses: |
|
|
|
|
|
|
|
|
|
|
|
Operating |
|
|
|
|
|
|
|
|
21,792
|
213
|
726
|
Administrative and general |
|
|
|
|
|
|
|
|
3,002
|
3
|
3
|
Depreciation |
|
|
|
|
|
|
|
|
615
|
540
|
556
|
Total costs and expenses |
|
|
|
|
|
|
|
|
25,409
|
756
|
1,285
|
Gains on asset dispositions, net |
|
|
|
|
|
|
|
|
(2,629)
|
0
|
0
|
Goodwill impairment |
|
|
|
|
|
|
|
|
(1,514)
|
|
|
Operating income |
|
|
|
|
|
|
|
|
(10,600)
|
471
|
(176)
|
Other income (expense): |
|
|
|
|
|
|
|
|
|
|
|
Interest income |
|
|
|
|
|
|
|
|
275
|
5
|
3
|
Interest expense |
|
|
|
|
|
|
|
|
(274)
|
0
|
0
|
SEACOR management fees |
|
|
|
|
|
|
|
|
|
|
0
|
Derivative losses, net |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Note receivable impairment |
|
|
|
|
|
|
|
|
|
0
|
|
Foreign currency gains, net |
|
|
|
|
|
|
|
|
(40)
|
0
|
0
|
Gains on debt extinguishment |
|
|
|
|
|
|
|
|
0
|
|
|
Gain on sale of FBO |
|
|
|
|
|
|
|
|
0
|
|
|
Other, net |
|
|
|
|
|
|
|
|
(15)
|
0
|
0
|
Total other income (expense) |
|
|
|
|
|
|
|
|
(54)
|
5
|
3
|
Income before income tax expense and equity earnings (losses) |
|
|
|
|
|
|
|
|
(10,654)
|
476
|
(173)
|
Income tax expense (benefit) |
|
|
|
|
|
|
|
|
(140)
|
174
|
(70)
|
Income before equity earnings (losses) |
|
|
|
|
|
|
|
|
(10,514)
|
302
|
(103)
|
Equity losses, net of tax |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Equity in earnings (losses) of subsidiaries |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Net income |
|
|
|
|
|
|
|
|
(10,514)
|
302
|
(103)
|
Net loss attributable to noncontrolling interest in subsidiaries |
|
|
|
|
|
|
|
|
430
|
0
|
0
|
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest |
|
|
|
|
|
|
|
|
430
|
0
|
0
|
Net income attributable to Era Group Inc. |
|
|
|
|
|
|
|
|
(10,084)
|
302
|
(103)
|
Accretion of redemption value on Series A Preferred Stock |
|
|
|
|
|
|
|
|
|
|
0
|
Net income attributable to common shares |
|
|
|
|
|
|
|
|
|
|
(103)
|
Eliminations |
|
|
|
|
|
|
|
|
|
|
|
Condensed Income Statements, Captions [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
Operating revenues |
|
|
|
|
|
|
|
|
(13)
|
(398)
|
(419)
|
Costs and expenses: |
|
|
|
|
|
|
|
|
|
|
|
Operating |
|
|
|
|
|
|
|
|
(13)
|
(111)
|
(155)
|
Administrative and general |
|
|
|
|
|
|
|
|
0
|
(287)
|
(264)
|
Depreciation |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Total costs and expenses |
|
|
|
|
|
|
|
|
(13)
|
(398)
|
(419)
|
Gains on asset dispositions, net |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Goodwill impairment |
|
|
|
|
|
|
|
|
0
|
|
|
Operating income |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Other income (expense): |
|
|
|
|
|
|
|
|
|
|
|
Interest income |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Interest expense |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
SEACOR management fees |
|
|
|
|
|
|
|
|
|
|
0
|
Derivative losses, net |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Note receivable impairment |
|
|
|
|
|
|
|
|
|
0
|
|
Foreign currency gains, net |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Gains on debt extinguishment |
|
|
|
|
|
|
|
|
0
|
|
|
Gain on sale of FBO |
|
|
|
|
|
|
|
|
0
|
|
|
Other, net |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Total other income (expense) |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Income before income tax expense and equity earnings (losses) |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Income tax expense (benefit) |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Income before equity earnings (losses) |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Equity losses, net of tax |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Equity in earnings (losses) of subsidiaries |
|
|
|
|
|
|
|
|
(9,155)
|
(31,119)
|
(31,492)
|
Net income |
|
|
|
|
|
|
|
|
(9,155)
|
(31,119)
|
(31,492)
|
Net loss attributable to noncontrolling interest in subsidiaries |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest |
|
|
|
|
|
|
|
|
0
|
0
|
0
|
Net income attributable to Era Group Inc. |
|
|
|
|
|
|
|
|
$ (9,155)
|
$ (31,119)
|
(31,492)
|
Accretion of redemption value on Series A Preferred Stock |
|
|
|
|
|
|
|
|
|
|
0
|
Net income attributable to common shares |
|
|
|
|
|
|
|
|
|
|
$ (31,492)
|