XML 60 R47.htm IDEA: XBRL DOCUMENT
v3.20.1

Schedule of Amounts Due to Affiliate (Detail) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items] |  |
Beginning balance | $ 50,186 |
Ending balance | 50,013 |
Sonatide Marine, Ltd. |  |
Schedule of Equity Method Investments [Line Items] |  |
Beginning balance | 31,475 |
Plus additional commissions payable to Sonatide | 1,138 |
Plus amounts paid by Sonatide on behalf of the company | 2,336 |
Less amounts used to offset Due from Sonatide obligations | (4,864) | [1]
Other | 689 |
Ending balance | $ 30,774 |
[1] | We reduced the respective due from affiliates and due to affiliates balances each period through netting transactions based on agreement with the joint venture.

X
- Definition Amount paid by affiliate. + References No definition available. + Details
Name: | tdw_AmountPaidByAffiliate
Namespace Prefix: | tdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Due to affiliates commissions to be paid. + References No definition available. + Details
Name: | tdw_DueToAffiliatesCommissionsToBePaid
Namespace Prefix: | tdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Due to affiliates other adjustments. + References No definition available. + Details
Name: | tdw_DueToAffiliatesOtherAdjustments
Namespace Prefix: | tdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Due to related party amount used to offset obligations. + References No definition available. + Details
Name: | tdw_DueToRelatedPartyAmountUsedToOffsetObligations
Namespace Prefix: | tdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(k)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(12)(b)(3)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 + Details
Name: | us-gaap_DueToAffiliateCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=tdw_SonatideMarineLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |