XML 62 R41.htm IDEA: XBRL DOCUMENT
v3.7.0.1

COMMITMENTS AND CONTINGENCIES (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2017
Commitments And Contingencies Disclosure [Abstract] |
Schedule of Vessel Commitments to Acquire and Construct New Vessels and ROVs, by Vessel Type | The table below summarizes the company’s various vessel commitments to acquire and construct new vessels, by vessel type, as of March 31, 2017:
(In thousands, except vessel count) |  | Number of Vessels |  |  | Total Cost |  |  | Invested Through 3/31/17 |  |  | Remaining Balance 3/31/17 |
Vessels under construction (A): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deepwater PSVs (B) |  |  | 2 |  |  | $ | 110,022 |  |  |  | 77,054 |  |  |  | 32,968 |
Total vessel commitments |  |  | 2 |  |  | $ | 110,022 |  |  |  | 77,054 |  |  |  | 32,968 |
| (A) | The two remaining option vessels, a vessel rejected at the time of delivery, and a fast supply boat are not included in the table above.
| (B) | In April 2017, the company entered into a novation agreement and assigned the construction contract related to one of the vessels under construction to a third party for net consideration of $5.3 million thus relieving the company of future payments of $27.2 million.

X
- Definition Tabular disclosure of arrangements in which the entity has agreed to acquire or construct assets. May include identification of assets to be acquired or constructed, pricing, effects on pricing, cancellation rights, and termination provisions. + References No definition available. + Details
Name: | tdw_VesselConstructionAndAcquisitionCommitmentTableTextBlock
Namespace Prefix: | tdw_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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