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Valuation and Qualifying Accounts | 12 Months Ended
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Mar. 31, 2015
Valuation and Qualifying Accounts | SCHEDULE II TIDEWATER INC. AND SUBSIDIARIES Valuation and Qualifying Accounts Years Ended March 31, 2015, 2014 and 2013 (In thousands)
Description |  | Balance at Beginning of period |  |  | Additions at Cost |  |  | Deductions |  |  | Balance at End of Period |  |  |
Fiscal 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deducted in balance sheet from Trade accounts receivables: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 35,737 |  |  |  | 2,405 |  |  |  | 508 |  |  |  | 37,634 |  |  |
Fiscal 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deducted in balance sheet from Trade accounts receivables: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 46,332 |  |  |  | 1,399 |  |  |  | 11,994 | (A) |  |  | 35,737 |  |  |
Fiscal 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deducted in balance sheet from Trade accounts receivables: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 49,921 |  |  |  | 900 |  |  |  | 4,489 | (B) |  |  | 46,332 |  |  |
(A) | Of this amount, $3,151 represents the collections from one customer located in Mexico and $8,843 represents accounts receivable amounts considered uncollectible and removed from accounts receivable with an offsetting reduction to the allowance for doubtful accounts.
(B) | Of this amount, $3,852 is related to the revaluation of the allowance for doubtful accounts related to Venezuelan receivables and $637 related to receivables considered uncollectible and removed from accounts receivable by reducing the allowance for doubtful accounts.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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