XML 145 R92.htm IDEA: XBRL DOCUMENT v2.4.0.8

Number of Shares of Tidewater Common Stock Held by Plan (Detail) (Defined Contribution Pension Plan 401k)	Mar. 31, 2014	Mar. 31, 2013
Defined Contribution Pension Plan 401k
Defined Contribution Plan [Line Items]
Number of shares of Tidewater common stock held by 401(k) plan	273,662	271,237

X

- Details

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Namespace Prefix:	tdw_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Number of common stock held in a trust that has been set up specifically to accumulate stock for the sole purpose of distribution to participating employees but not yet earned.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 25

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6418455&loc=d3e16701-113920

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant