XML 23 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8

Summary of Net Properties and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014 Vessel		Mar. 31, 2013 Vessel
Property, Plant and Equipment [Line Items]
Number Of Vessels	272		309
Carrying Value	$ 3,621,608		$ 3,189,819
Vessels in Active Service
Property, Plant and Equipment [Line Items]
Number Of Vessels	257		256
Carrying Value	3,281,391		2,882,908
Stacked Vessels
Property, Plant and Equipment [Line Items]
Number Of Vessels	15		51
Carrying Value	9,743		30,084
Vessels Withdrawn
Property, Plant and Equipment [Line Items]
Number Of Vessels	0		2
Carrying Value			633
Marine Equipment and Other Assets Under Construction
Property, Plant and Equipment [Line Items]
Carrying Value	268,189		239,287
Other Property Plant and Equipment
Property, Plant and Equipment [Line Items]
Carrying Value	$ 62,285	[1]	$ 36,907	[1]
[1] Other property and equipment includes six remotely operated vehicles the company took delivery of in fiscal 2014.

X

- Definition

Number of Vessels

+ References

No definition available.

+ Details

Name:	tdw_NumberOfVessel
Namespace Prefix:	tdw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 13

-Subparagraph a

-Article 5



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 8

-Article 7

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant