XML 38 R25.htm IDEA: XBRL DOCUMENT v3.21.1

Note 5 - Stockholders' Equity and Dilutive Equity Instruments (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		Three Months Ended
		March 31,				March 31,
(In thousands)		2021				2020
Balance at December 31, 2020 and 2019		$	(804	)		$	(236	)
Pension benefits recognized in OCI			(71	)			369
Balance at March 31, 2021 and 2020		$	(875	)		$	133

Schedule of Total Shares Outstanding Including Warrants and Restricted Stock Units [Table Text Block]

Total shares outstanding including warrants and restricted stock units		March 31, 2021				March 31, 2020
Common shares outstanding			40,731,777				40,259,917
New creditor warrants (strike price $0.001 per common share)			657,203				821,308
GulfMark creditor warrants (strike price $0.01 per common share)			815,575				952,154
Restricted stock units and stock options			1,698,719				359,977
Total			43,903,274				42,393,356

X

- Definition

The tabular disclosure of total shares outstanding including warrants and restricted stock units.

+ References

No definition available.

+ Details

Name:	tdw_ScheduleOfTotalSharesOutstandingIncludingWarrantsAndRestrictedStockUnitsTableTextBlock
Namespace Prefix:	tdw_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

+ Details

Name:	us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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