The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Commitments and Contingencies - Additional Information - Legal Proceedings and Claims - Petrojarl Knarr FPSO and Towage of the Ocean Winner (Details) - Teekay Offshore $ in Millions	1 Months Ended
	Oct. 31, 2016 USD ($)	Feb. 28, 2017 vessel
Transocean Offshore International Ventures Limited \| Towage Vessels
Loss Contingencies [Line Items]
Number of vessels \| vessel		1
Royal Dutch Shell Plc
Loss Contingencies [Line Items]
Percentage of rate reduction claim	20.00%
Royal Dutch Shell Plc
Loss Contingencies [Line Items]
Estimated claim \| $	$ 23.6