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Segment Information, Geographical Data and Major Customers (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Vessel revenues |  | $ 125,120 | $ 212,908 |  | $ 426,911 | $ 775,352 |
Other operating revenues |  | 4,095 | 5,283 |  | 13,951 | 19,536 |
Total revenues |  | 129,215 | 218,191 |  | 440,862 | 794,888 |
Operating profit (loss) |  | (26,053) | 8,637 |  | (71,154) | 66,925 |
General and administrative expenses |  | (34,151) | (35,598) |  | (104,152) | (116,837) |
Depreciation and amortization |  | 41,302 | 45,422 |  | 129,699 | 137,058 |
Corporate expenses |  | (13,698) | (8,779) |  | (35,524) | (29,868) |
Gain on asset dispositions, net |  | 6,139 | 5,883 |  | 18,035 | 19,345 |
Asset impairments | [1] | (253,422) | (15,141) |  | (419,870) | (61,771) |
Restructuring charge |  |  |  | $ (7,600) |  | (7,586) | [2]
Operating loss |  | (287,034) | (9,400) |  | (508,513) | (12,955) |
Foreign exchange gain (loss) |  | 2,970 | (469) |  | (2,302) | (3,758) |
Equity in net earnings (losses) of unconsolidated companies |  | 1,557 | (1,710) |  | 2,869 | (7,070) |
Interest income and other, net |  | 1,437 | 609 |  | 3,605 | 1,754 |
Interest and other debt costs, net |  | (18,587) | (13,312) |  | (54,018) | (39,741) |
Loss before income taxes |  | (299,657) | (24,282) |  | (558,359) | (61,770) |
Additions to properties and equipment |  | 2,489 | 11,909 |  | 22,474 | 152,370 |
All Other Segments |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Operating profit (loss) |  | 116 | (626) |  | (1,323) | (3,120) |
Depreciation and amortization |  | 855 | 1,369 |  | 3,575 | 4,285 |
Additions to properties and equipment |  |  | 26 |  |  | 113 |
Operating Segments |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Operating profit (loss) |  | (26,169) | 9,263 |  | (69,831) | 70,045 |
Depreciation and amortization |  | 39,882 | 42,424 |  | 124,232 | 128,001 |
Additions to properties and equipment |  | 481 | 3,011 |  | 1,329 | 48,790 |
Operating Segments | Americas |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Vessel revenues |  | 45,577 | 75,963 |  | 159,310 | 279,345 |
Operating profit (loss) |  | (6,242) | 9,289 |  | (11,745) | 41,940 |
Depreciation and amortization |  | 12,039 | 12,029 |  | 37,517 | 36,311 |
Additions to properties and equipment |  | 18 | 2,064 |  | 93 | 44,118 |
Operating Segments | Asia/Pacific |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Vessel revenues |  | 5,586 | 19,144 |  | 19,617 | 79,254 |
Operating profit (loss) |  | (5,586) | (3,796) |  | (17,256) | 4,122 |
Depreciation and amortization |  | 5,266 | 5,803 |  | 16,586 | 16,503 |
Additions to properties and equipment |  |  | 360 |  |  | 2,069 |
Operating Segments | Middle East |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Vessel revenues |  | 20,647 | 26,256 |  | 68,323 | 87,193 |
Operating profit (loss) |  | (2,782) | 650 |  | (1,890) | 4,898 |
Depreciation and amortization |  | 5,411 | 4,780 |  | 15,764 | 14,381 |
Additions to properties and equipment |  | 273 | 127 |  | 587 | 776 |
Operating Segments | Africa/Europe |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Vessel revenues |  | 53,310 | 91,545 |  | 179,661 | 329,560 |
Operating profit (loss) |  | (11,559) | 3,120 |  | (38,940) | 19,085 |
Depreciation and amortization |  | 17,166 | 19,812 |  | 54,365 | 60,806 |
Additions to properties and equipment |  | 190 | 460 |  | 649 | 1,827 |
Corporate |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
General and administrative expenses |  | (13,133) | (7,150) |  | (33,632) | (25,096) |
Depreciation and amortization |  | 565 | 1,629 |  | 1,892 | 4,772 |
Additions to properties and equipment | [3] | $ 2,008 | $ 8,872 |  | $ 21,145 | $ 103,467 |
[1] | Refer to Note (15) for additional information regarding asset impairment charges.
[2] | Refer to Note (14) for additional information regarding the restructuring charge.
[3] | Included in Corporate are additions to properties and equipment relating to vessels currently under construction which have not yet been assigned to a non-corporate reporting segment as of the dates presented.

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