XML 63 R52.htm IDEA: XBRL DOCUMENT
v3.22.1

Note 14 - Asset Dispositions, Asset Held for Sale and Asset Impairments - Activity in Assets Held for Sale (Details) $ in Thousands | 3 Months Ended | 12 Months Ended | 39 Months Ended
--- | --- | --- | ---
Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Mar. 31, 2022 USD ($)
Number of Vessels, Held for Sale | 12 | 18 |  |  |  | 85
Sales | (5) |  |  |  |  | (67)
Transfers | (1) |  | 0 |  |  |
Transfers | $ (1,500) |  | $ 0 |  |  |
Ending balance | 12 | 18 |  |  |  | 85
Vessels Held for Sale [Member] |  |  |  |  |  |
Number of Vessels, Held for Sale | 12 |  | 20 | 18 | 23 |
Beginning balance | $ 14,421 |  | $ 34,396 | $ 34,396 |  |
Sales | (5) |  | (3) |  |  |
Sales | $ (4,330) |  | $ (3,182) |  |  |
Ending balance | 12 |  | 20 | 18 | 23 |
Ending balance | $ 8,591 | $ 14,421 | $ 31,214 | $ 14,421 | $ 34,396 | $ 8,591

X
- Definition The amount of sales of assets held for sale during the period. + References No definition available. + Details
Name: | tdw_AssetsHeldForSaleSales
Namespace Prefix: | tdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of increase (decrease) in assets held for sale from transfers. + References No definition available. + Details
Name: | tdw_AssetsHeldForSaleTransfers
Namespace Prefix: | tdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of vessels classified as held for sale. + References No definition available. + Details
Name: | tdw_NumberOfVesselsHeldForSale
Namespace Prefix: | tdw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of vessels classified as held for sale are sold during period. + References No definition available. + Details
Name: | tdw_NumberOfVesselsHeldForSaleSold
Namespace Prefix: | tdw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of increase (decrease) in vessels held for sale from transfers. + References No definition available. + Details
Name: | tdw_NumberOfVesselsHeldForSaleTransfers
Namespace Prefix: | tdw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of assets held-for-sale that are not part of a disposal group. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 15 -Paragraph 4 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=126982154&loc=d3e400-110220 + Details
Name: | us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=tdw_VesselsHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |