SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION OPERATIONS (Details) - USD ($) $ in Thousands |
3 Months Ended |
6 Months Ended |
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2015 |
Sep. 30, 2014 |
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
$ 446,911
|
$ 475,636
|
$ 913,907
|
$ 948,174
|
| Operating expense: |
|
|
|
|
| Direct cost and reimbursable expense |
334,259
|
335,504
|
691,105
|
661,975
|
| Intercompany expenses |
0
|
0
|
0
|
0
|
| Depreciation and amortization |
37,387
|
28,205
|
74,533
|
53,539
|
| General and administrative |
53,457
|
61,724
|
114,789
|
122,156
|
| Operating expense |
425,103
|
425,433
|
880,427
|
837,670
|
| Loss on impairment |
(22,274)
|
(3,362)
|
(27,713)
|
(3,362)
|
| Gain (loss) on disposal of assets |
(14,007)
|
127
|
(21,702)
|
737
|
| Earnings from unconsolidated affiliates, net of losses |
(15,360)
|
(2,904)
|
(9,064)
|
1,377
|
| Operating income |
(29,833)
|
44,064
|
(24,999)
|
109,256
|
| Interest expense, net |
(7,179)
|
(7,572)
|
(14,848)
|
(14,699)
|
| Other income (expense), net |
(11,424)
|
(2,681)
|
(7,585)
|
(3,920)
|
| Income (loss) before provision for income taxes |
(48,436)
|
33,811
|
(47,432)
|
90,637
|
| Benefit (provision) for income taxes |
2,756
|
(5,986)
|
123
|
(17,809)
|
| Net income (loss) |
(45,680)
|
27,825
|
(47,309)
|
72,828
|
| Net income attributable to noncontrolling interests |
(1,452)
|
(1,743)
|
(3,080)
|
(2,637)
|
| Net income (loss) attributable to Bristow Group |
(47,132)
|
26,082
|
(50,389)
|
70,191
|
| Accretion of redeemable noncontrolling interests |
4,803
|
0
|
(1,498)
|
0
|
| Net income (loss) attributable to common stockholders |
(42,329)
|
26,082
|
(51,887)
|
70,191
|
| External Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
446,911
|
475,636
|
913,907
|
948,174
|
| Intercompany Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
0
|
0
|
0
|
0
|
| Parent Company |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
0
|
311
|
0
|
864
|
| Operating expense: |
|
|
|
|
| Direct cost and reimbursable expense |
(1,061)
|
0
|
(917)
|
0
|
| Intercompany expenses |
0
|
0
|
0
|
0
|
| Depreciation and amortization |
1,675
|
1,420
|
3,284
|
1,278
|
| General and administrative |
19,764
|
19,841
|
40,315
|
38,178
|
| Operating expense |
20,378
|
21,261
|
42,682
|
39,456
|
| Loss on impairment |
0
|
0
|
0
|
0
|
| Gain (loss) on disposal of assets |
0
|
0
|
0
|
0
|
| Earnings from unconsolidated affiliates, net of losses |
(73,993)
|
15,992
|
(89,427)
|
52,984
|
| Operating income |
(94,371)
|
(4,958)
|
(132,109)
|
14,392
|
| Interest expense, net |
30,967
|
28,492
|
58,451
|
56,010
|
| Other income (expense), net |
271
|
(916)
|
(45)
|
(1,844)
|
| Income (loss) before provision for income taxes |
(63,133)
|
22,618
|
(73,703)
|
68,558
|
| Benefit (provision) for income taxes |
16,015
|
3,473
|
23,342
|
1,660
|
| Net income (loss) |
(47,118)
|
26,091
|
(50,361)
|
70,218
|
| Net income attributable to noncontrolling interests |
(14)
|
(9)
|
(28)
|
(27)
|
| Net income (loss) attributable to Bristow Group |
(47,132)
|
26,082
|
(50,389)
|
70,191
|
| Accretion of redeemable noncontrolling interests |
0
|
|
0
|
|
| Net income (loss) attributable to common stockholders |
(47,132)
|
|
(50,389)
|
|
| Parent Company | External Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
0
|
0
|
0
|
0
|
| Parent Company | Intercompany Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
0
|
311
|
0
|
864
|
| Guarantor Subsidiaries |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
80,494
|
98,902
|
170,161
|
199,365
|
| Operating expense: |
|
|
|
|
| Direct cost and reimbursable expense |
50,731
|
56,888
|
104,957
|
109,953
|
| Intercompany expenses |
0
|
0
|
0
|
0
|
| Depreciation and amortization |
17,530
|
11,886
|
32,115
|
22,101
|
| General and administrative |
5,961
|
7,147
|
12,792
|
17,246
|
| Operating expense |
74,222
|
75,921
|
149,864
|
149,300
|
| Loss on impairment |
0
|
0
|
(2,508)
|
0
|
| Gain (loss) on disposal of assets |
(11,901)
|
1,200
|
(19,638)
|
2,538
|
| Earnings from unconsolidated affiliates, net of losses |
0
|
0
|
0
|
0
|
| Operating income |
(5,629)
|
24,181
|
(1,849)
|
52,603
|
| Interest expense, net |
(1,081)
|
(960)
|
(2,346)
|
(1,966)
|
| Other income (expense), net |
330
|
169
|
84
|
97
|
| Income (loss) before provision for income taxes |
(6,380)
|
23,390
|
(4,111)
|
50,734
|
| Benefit (provision) for income taxes |
(1,273)
|
(994)
|
(2,410)
|
(761)
|
| Net income (loss) |
(7,653)
|
22,396
|
(6,521)
|
49,973
|
| Net income attributable to noncontrolling interests |
0
|
0
|
0
|
0
|
| Net income (loss) attributable to Bristow Group |
(7,653)
|
22,396
|
(6,521)
|
49,973
|
| Accretion of redeemable noncontrolling interests |
0
|
|
0
|
|
| Net income (loss) attributable to common stockholders |
(7,653)
|
|
(6,521)
|
|
| Guarantor Subsidiaries | External Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
58,570
|
73,715
|
123,426
|
149,352
|
| Guarantor Subsidiaries | Intercompany Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
21,924
|
25,187
|
46,735
|
50,013
|
| Non-Guarantor Subsidiaries |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
388,341
|
401,921
|
790,481
|
798,822
|
| Operating expense: |
|
|
|
|
| Direct cost and reimbursable expense |
284,589
|
278,616
|
587,065
|
552,022
|
| Intercompany expenses |
21,924
|
25,498
|
46,735
|
50,877
|
| Depreciation and amortization |
18,182
|
14,899
|
39,134
|
30,160
|
| General and administrative |
27,732
|
34,736
|
61,682
|
66,732
|
| Operating expense |
352,427
|
353,749
|
734,616
|
699,791
|
| Loss on impairment |
(22,274)
|
(3,362)
|
(25,205)
|
(3,362)
|
| Gain (loss) on disposal of assets |
(2,106)
|
(1,073)
|
(2,064)
|
(1,801)
|
| Earnings from unconsolidated affiliates, net of losses |
(15,360)
|
(2,904)
|
(9,064)
|
1,377
|
| Operating income |
(3,826)
|
40,833
|
19,532
|
95,245
|
| Interest expense, net |
(37,065)
|
(35,104)
|
(70,953)
|
(68,743)
|
| Other income (expense), net |
(12,025)
|
(1,934)
|
(7,624)
|
(2,173)
|
| Income (loss) before provision for income taxes |
(52,916)
|
3,795
|
(59,045)
|
24,329
|
| Benefit (provision) for income taxes |
(11,986)
|
(8,465)
|
(20,809)
|
(18,708)
|
| Net income (loss) |
(64,902)
|
(4,670)
|
(79,854)
|
5,621
|
| Net income attributable to noncontrolling interests |
(1,438)
|
(1,734)
|
(3,052)
|
(2,610)
|
| Net income (loss) attributable to Bristow Group |
(66,340)
|
(6,404)
|
(82,906)
|
3,011
|
| Accretion of redeemable noncontrolling interests |
4,803
|
|
(1,498)
|
|
| Net income (loss) attributable to common stockholders |
(61,537)
|
|
(84,404)
|
|
| Non-Guarantor Subsidiaries | External Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
388,341
|
401,921
|
790,481
|
798,822
|
| Non-Guarantor Subsidiaries | Intercompany Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
0
|
0
|
0
|
0
|
| Consolidations, Eliminations |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
(21,924)
|
(25,498)
|
(46,735)
|
(50,877)
|
| Operating expense: |
|
|
|
|
| Direct cost and reimbursable expense |
0
|
0
|
0
|
0
|
| Intercompany expenses |
(21,924)
|
(25,498)
|
(46,735)
|
(50,877)
|
| Depreciation and amortization |
0
|
0
|
0
|
0
|
| General and administrative |
0
|
0
|
0
|
0
|
| Operating expense |
(21,924)
|
(25,498)
|
(46,735)
|
(50,877)
|
| Loss on impairment |
0
|
0
|
0
|
0
|
| Gain (loss) on disposal of assets |
0
|
0
|
0
|
0
|
| Earnings from unconsolidated affiliates, net of losses |
73,993
|
(15,992)
|
89,427
|
(52,984)
|
| Operating income |
73,993
|
(15,992)
|
89,427
|
(52,984)
|
| Interest expense, net |
0
|
0
|
0
|
0
|
| Other income (expense), net |
0
|
0
|
0
|
0
|
| Income (loss) before provision for income taxes |
73,993
|
(15,992)
|
89,427
|
(52,984)
|
| Benefit (provision) for income taxes |
0
|
0
|
0
|
0
|
| Net income (loss) |
73,993
|
(15,992)
|
89,427
|
(52,984)
|
| Net income attributable to noncontrolling interests |
0
|
0
|
0
|
0
|
| Net income (loss) attributable to Bristow Group |
73,993
|
(15,992)
|
89,427
|
(52,984)
|
| Accretion of redeemable noncontrolling interests |
0
|
|
0
|
|
| Net income (loss) attributable to common stockholders |
73,993
|
|
89,427
|
|
| Consolidations, Eliminations | External Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
0
|
0
|
0
|
0
|
| Consolidations, Eliminations | Intercompany Customer |
|
|
|
|
| Revenue: |
|
|
|
|
| Total consolidated gross revenue |
$ (21,924)
|
$ (25,498)
|
$ (46,735)
|
$ (50,877)
|