XML 53 R40.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Note 6 - Stockholders' Equity and Dilutive Equity Instruments - Dilutive Equity Instruments (Details) (Parentheticals) - $ / shares | Sep. 30, 2022 | Sep. 30, 2021
--- | --- | ---
New Creditor Warrants [Member] |  |
Strike price per common share (in dollars per share) | $ 0.001 | $ 0.001
GulfMark Creditor Warrants [Member] |  |
Strike price per common share (in dollars per share) | 0.01 | 0.01
SPO Acquisition Warrants [Member] |  |
Strike price per common share (in dollars per share) | $ 0.001 | $ 0.001

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tdw_NewCreditorWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tdw_GulfmarkCreditorWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=tdw_SpoAcquisitionWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |