XML 45 R33.htm IDEA: XBRL DOCUMENT
v3.8.0.1

INDEBTEDNESS (Tables) | 6 Months Ended
--- | ---
Sep. 30, 2017
Debt Disclosure [Abstract] |
Summary of Debt Outstanding | The following is a summary of all debt outstanding at September 30, 2017 and March 31, 2017:
|  | Successor |  |  |  | Predecessor |
|  | September 30, |  |  |  | March 31, |
(In thousands) |  | 2017 |  |  |  | 2017 |
Term loan (A) |  | $ | — |  |  |  |  | 300,000 |
Revolving line of credit (A) (B) |  |  | — |  |  |  |  | 600,000 |
September 2013 senior unsecured notes (A) |  |  | — |  |  |  |  | 500,000 |
August 2011 senior unsecured notes (A) |  |  | — |  |  |  |  | 165,000 |
September 2010 senior unsecured notes (A) |  |  | — |  |  |  |  | 382,500 |
New secured notes (A) |  |  | 350,000 |  |  |  |  | — |
New secured notes - premium |  |  | 14,987 |  |  |  |  | — |
Troms Offshore borrowings: |  |  |  |  |  |  |  |  |
May 2015 notes (C) |  |  | 26,115 |  |  |  |  | 27,421 |
May 2015 notes - discount |  |  | (1,927 | ) |  |  |  | — |
March 2015 notes (C) |  |  | 23,345 |  |  |  |  | 24,573 |
March 2015 notes - discount |  |  | (1,755 | ) |  |  |  | — |
January 2014 notes (C) (D) |  |  | 26,687 |  |  |  |  | 26,167 |
January 2014 notes - discount |  |  | (1,707 | ) |  |  |  | — |
May 2012 notes (C) (D) |  |  | 14,980 |  |  |  |  | 14,864 |
May 2012 notes - premium |  |  | 126 |  |  |  |  | — |
|  |  | 450,851 |  |  |  |  | 2,040,525 |
Less: Deferred debt issue costs |  |  | — |  |  |  |  | 6,401 |
Less: Current portion of long-term debt |  |  | 5,174 |  |  |  |  | 2,034,124 |
Total long-term debt |  | $ | 445,677 |  |  |  |  | — |
(A) | As of September 30, 2017 the fair value (Level 2) of the New Secured Notes was $357.7 million. As of March 31, 2017 the aggregate fair value (Level 2) of the term loan, revolver and senior notes was $1.1 billion.
(B) | The revolver was fully drawn at March 31, 2017.
(C) | Notes require semi-annual principal and interest payments. As of September 30, 2017 and March 31, 2017, the aggregate fair value (Level 2) of the Troms Offshore borrowings was $90.9 million and $92.9 million, respectively.
(D) | Notes are denominated in Norwegian kroner (NOK)
Debt Costs | The following is a summary of interest and debt costs incurred, net of interest capitalized:
|  | Successor |  |  |  | Predecessor |
|  | Period from |  |  |  | Period from |  |  |  |  |
|  | August 1, 2017 |  |  |  | July 1, 2017 |  |  | Three Months |
|  | through |  |  |  | through |  |  | Ended |
(In thousands) |  | September 30, 2017 |  |  |  | July 31, 2017 |  |  | September 30, 2016 |
Interest and debt costs incurred, net of interest capitalized |  | $ | 5,240 |  |  |  |  | 574 |  |  |  | 18,477 |
Interest costs capitalized |  |  | — |  |  |  |  | — |  |  |  | 1,101 |
Total interest and debt costs |  | $ | 5,240 |  |  |  |  | 574 |  |  |  | 19,578 |
|  | Successor |  |  |  | Predecessor |
|  | Period from |  |  |  | Period from |  |  |  |  |
|  | August 1, 2017 |  |  |  | April 1, 2017 |  |  | Six Months |
|  | through |  |  |  | through |  |  | Ended |
(In thousands) |  | September 30, 2017 |  |  |  | July 31, 2017 |  |  | September 30, 2016 |
Interest and debt costs incurred, net of interest capitalized |  | $ | 5,240 |  |  |  |  | 11,179 |  |  |  | 35,431 |
Interest costs capitalized |  |  | — |  |  |  |  | — |  |  |  | 2,494 |
Total interest and debt costs |  | $ | 5,240 |  |  |  |  | 11,179 |  |  |  | 37,925 |

X
- Definition Interest And Debt Costs Incurred Net Of Interest Capitalized. + References No definition available. + Details
Name: | tdw_InterestAndDebtCostsIncurredNetOfInterestCapitalizedTableTextBlock
Namespace Prefix: | tdw_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21538-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644 + Details
Name: | us-gaap_ScheduleOfDebtInstrumentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration