Maximum term of the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
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-Section 55
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-URI http://asc.fasb.org/extlink&oid=6409961&loc=d3e20487-108367

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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.

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Gross number of share options (or share units) granted during the period.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Value, before forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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Gross number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Capital Stock - Additional Information, Stock-based compensation of Subsidiaries (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended				12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares or units issued related to the exercise of share based compensation during the period					100,000	200,000	1,800,000
Stock option per share value (dollars per share)					$ 9.44	$ 43.99	$ 56.76
Non-management directors [Member] \| Teekay Offshore [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares or units issued related to the exercise of share based compensation during the period					76,084	14,603	9,482
Non-management directors [Member] \| Teekay LNG [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares or units issued related to the exercise of share based compensation during the period					32,723	10,447	9,521
Non-management directors [Member] \| Teekay Offshore Teekay Lng And Teekay Tankers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common units aggregate value, granted					$ 0.7	$ 1.0	$ 0.8
Phantom unit awards [Member] \| Teekay Offshore [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares or units granted equity based compensation awards	601,368	102,843		67,569
Phantom unit awards [Member] \| Teekay LNG [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares or units granted equity based compensation awards	132,582	32,054		31,961
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares or units granted equity based compensation awards					238,609	63,912	81,388
Vesting period					3 years
Restricted stock and phantom share units [Member] \| Teekay Offshore Teekay Lng And Teekay Tankers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common units aggregate value, granted	$ 4.9	$ 4.2		$ 5.7
Vesting period					3 years
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)					916,015	265,135	15,243
Stock option, term					10 years
Vesting period					3 years
Stock Option [Member] \| Officer [Member] \| Teekay Tankers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)	216,043	58,434	110,829
Stock option per share value (dollars per share)	$ 3.74	$ 5.39	$ 4.25
Stock option, term	10 years		10 years
Vesting period	3 years		3 years
Stock Option [Member] \| Non-management directors [Member] \| Teekay Tankers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)	284,693			152,346
Stock option per share value (dollars per share)	$ 3.74			$ 4.10
Stock option, term	10 years	10 years		10 years
Vesting period		3 years
Class A [Member] \| Non-management directors [Member] \| Teekay Tankers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares or units issued related to the exercise of share based compensation during the period					9,358	51,948	17,073
Class A [Member] \| Restricted stock units [Member] \| Teekay Tankers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares or units granted equity based compensation awards	279,980	192,387		586,014