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Commitment and Contingencies (Nigeria Marketing Agent Litigation) - Additional Information (Detail) $ in Millions | Mar. 31, 2016 USD ($)
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Federal Government of Nigeria |
Commitments and Contingencies Disclosure [Line Items] |
Due to affiliates | $ 16

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- Definition Commitments and Contingencies Disclosure [Line Items] + References No definition available. + Details
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Namespace Prefix: | tdw_
Data Type: | xbrli:stringItemType
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- Definition Due to affiliates. + References No definition available. + Details
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Namespace Prefix: | tdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |