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CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (LOSS) (Unaudited) - USD ($) $ in Thousands | 1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 31, 2017 | Sep. 30, 2017 | Sep. 30, 2016 | Jul. 31, 2017 | Sep. 30, 2016
Revenues: |  |  |  |  |  |
Vessel revenues |  |  | $ 70,571 |  |  |
Other operating revenues |  |  | 3,729 |  |  |
Total revenues |  |  | 74,300 |  |  |
Costs and expenses: |  |  |  |  |  |
Vessel operating costs |  |  | 52,301 |  |  |
Costs of other operating revenues |  |  | 2,273 |  |  |
General and administrative |  |  | 16,246 |  |  |
Vessel operating leases |  |  | 1,124 |  |  |
Depreciation and amortization |  |  | 8,142 |  |  |
Gain on asset dispositions, net |  |  | (4) |  |  |
Total costs and expenses |  |  | 80,082 |  |  |
Operating loss |  |  | (5,782) |  |  |
Other income (expenses): |  |  |  |  |  |
Foreign exchange loss |  |  | (58) |  |  |
Equity in net earnings of unconsolidated companies |  |  | 1,305 |  |  |
Interest income and other |  |  | 873 |  |  |
Reorganization items | [1] |  | (1,880) |  |  |
Interest and other debt costs |  |  | (5,240) |  |  |
Total other income (expenses) |  |  | (5,000) |  |  |
Loss before income taxes |  |  | (10,782) |  |  |
Income tax (benefit) expense |  |  | 4,745 |  |  |
Net loss |  |  | (15,527) |  |  |
Less: Net income (loss) attributable to noncontrolling interests |  |  | 166 |  |  |
Net loss attributable to Tidewater Inc. |  |  | $ (15,693) |  |  |
Basic loss per common share | [2] |  | $ (0.81) |  |  |
Diluted loss per common share | [3] |  | $ (0.81) |  |  |
Weighted average common shares outstanding | [4] |  | 19,389,031 |  |  |
Adjusted weighted average common shares |  |  | 19,389,031 |  |  |
Predecessor |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Vessel revenues |  | $ 34,340 |  | $ 139,361 | $ 146,597 | $ 301,791
Other operating revenues |  | 1,923 |  | 4,361 | 4,772 | 9,856
Total revenues |  | 36,263 |  | 143,722 | 151,369 | 311,647
Costs and expenses: |  |  |  |  |  |
Vessel operating costs |  | 32,665 |  | 87,094 | 116,438 | 195,968
Costs of other operating revenues |  | 763 |  | 3,423 | 2,348 | 7,326
General and administrative |  | 8,773 |  | 32,954 | 41,832 | 70,001
Vessel operating leases |  | 623 |  | 8,441 | 6,165 | 16,882
Depreciation and amortization |  | 11,160 |  | 43,845 | 47,447 | 88,397
Gain on asset dispositions, net |  | (372) |  | (6,253) | (3,561) | (11,896)
Asset impairments | [5] | 21,325 |  | 129,562 | 184,748 | 166,448
Total costs and expenses |  | 74,937 |  | 299,066 | 395,417 | 533,126
Operating loss |  | (38,674) |  | (155,344) | (244,048) | (221,479)
Other income (expenses): |  |  |  |  |  |
Foreign exchange loss |  | (2,024) |  | (2,539) | (3,181) | (5,272)
Equity in net earnings of unconsolidated companies |  | 269 |  | 1,313 | 4,786 | 1,312
Interest income and other |  | 704 |  | 992 | 2,384 | 2,168
Reorganization items | [1] | (1,083,729) |  |  | (1,396,905) |
Interest and other debt costs |  | (574) |  | (18,477) | (11,179) | (35,431)
Total other income (expenses) |  | (1,085,354) |  | (18,711) | (1,404,095) | (37,223)
Loss before income taxes |  | (1,124,028) |  | (174,055) | (1,648,143) | (258,702)
Income tax (benefit) expense |  | (1,529) |  | 3,568 | (1,234) | 7,564
Net loss |  | (1,122,499) |  | (177,623) | (1,646,909) | (266,266)
Less: Net income (loss) attributable to noncontrolling interests |  | (24) |  | 867 |  | 1,321
Net loss attributable to Tidewater Inc. |  | $ (1,122,475) |  | $ (178,490) | $ (1,646,909) | $ (267,587)
Basic loss per common share | [2] | $ (23.82) |  | $ (3.79) | $ (34.95) | $ (5.69)
Diluted loss per common share | [3] | $ (23.82) |  | $ (3.79) | $ (34.95) | $ (5.69)
Weighted average common shares outstanding | [4] | 47,121,407 |  | 47,067,864 | 47,121,330 | 47,067,790
Adjusted weighted average common shares |  | 47,121,407 |  | 47,067,864 | 47,121,330 | 47,067,790
[1] | Refer to Note (4) for additional information regarding reorganization items.
[2] | The company calculates “Loss per share, basic” by dividing “Net loss available to common shareholders” by “Weighted average outstanding shares of common stock, basic”.
[3] | The company calculates “Loss per share, diluted” by dividing “Net loss available to common shareholders” by “Weighted average shares of common stock and equivalents”.
[4] | Basic weighted average shares outstanding includes 410,262 shares issuable upon the exercise of Creditor Warrants held by U.S citizens at September 30, 2017 (Successor).
[5] | Refer to Note (16) for additional information regarding asset impairment charges.

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