XML 46 R35.htm IDEA: XBRL DOCUMENT v3.22.1

Note 5 - Stockholders' Equity and Dilutive Equity Instruments - Dilutive Equity Instruments (Details) - shares	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Common stock, shares outstanding (in shares)	41,716,885	41,307,617	40,731,777
Total (in shares)	44,348,132		43,903,274
Restricted Stock Units and Stock Options [Member]
Common stock shares reserved (in shares)	1,736,037		1,698,719
New Creditor Warrants [Member]
Common stock shares reserved (in shares)	465,398		657,203
GulfMark Creditor Warrants [Member]
Common stock shares reserved (in shares)	429,812		815,575

X

- Definition

The number of shares outstanding and the aggregate number of common shares reserved for future issuance.

+ References

No definition available.

+ Details

Name:	tdw_CommonStockSharesOutstandingAndReservedForFutureIssuance
Namespace Prefix:	tdw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644

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(29))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_CommonStockSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_AwardTypeAxis=tdw_RestrictedStockUnitsAndStockOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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: