Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Segment Reporting - Additional Information (Detail) $ in Thousands		3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)
Segment Reporting [Abstract]
Number of reportable segments \| segment				3
Number of lines of businesses, more than \| segment				1
Segment Reporting Information [Line Items]
Equity loss		$ (1,264)	$ (21,070)	$ 36,373	$ (73,706)
Asset impairment charges		243,659	$ 0	245,159	43,649
Teekay Offshore
Segment Reporting Information [Line Items]
Asset impairment charges	$ 316,700				$ 43,700
Teekay Offshore
Segment Reporting Information [Line Items]
Equity loss		$ 3,100		$ 3,100