XML 23 R55.htm IDEA: XBRL DOCUMENT v2.4.0.8

Commitments and Contingencies (Merchant Navy Officers Pension Fund) - Additional Information (Detail) (Merchant Navy Officers Pension Fund)	1 Months Ended
	Jul. 15, 2013 Vessel
Merchant Navy Officers Pension Fund
Commitments and Contingencies Disclosure [Line Items]
Number of Vessels to be purchased	7

X

- Details

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

X

- Definition

Significant purchase commitment, vessels to acquire

+ References

No definition available.

+ Details

Name:	tdw_SignificantPurchaseCommitmentVesselsToAcquire
Namespace Prefix:	tdw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration