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Equity Financing Transactions of the Daughter Companies - Additional Information (Detail) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jul. 31, 2015 vessel | Jun. 30, 2016 USD ($) $ / shares shares | Jul. 31, 2015 USD ($) | Aug. 31, 2014 USD ($) pool $ / shares shares | Nov. 30, 2013 vessel | Dec. 31, 2016 USD ($) shares | Dec. 31, 2015 USD ($) vessel shares | Dec. 31, 2014 USD ($)
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  |  |  | $ 327,419 | $ 575,368 | $ 452,061
Number of vessels | vessel |  |  |  |  | 5 |  |  |
Increase in carrying amount of non-controlling interest |  |  |  |  |  | 338,253 | 535,784 | 412,792
Increases (decreases) to retained earnings |  |  |  |  |  | 9,732 | (152,729) | 68,428
Retained Earnings [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Increase in carrying amount of non-controlling interest |  |  |  |  |  | (4,993) |  |
Increases (decreases) to retained earnings |  |  |  |  |  | $ 9,732 | (152,729) | $ 68,428
Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Proceeds from issuance of convertible preferred stock |  | $ 100,000 |  |  |  |  |  |
Proceeds from issuance of equity, net |  | $ 97,200 |  |  |  |  |  |
Teekay Offshore [Member] | Series D Preferred Stock [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Units issued | shares |  | 4,000,000 |  |  |  |  |  |
Preferred units dividend rate |  | 10.50% |  |  |  | 10.50% |  |
Net cash proceeds |  | $ 61,100 |  |  |  |  |  |
Teekay Offshore [Member] | Series D Preferred Stock [Member] | Affiliated Entity [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Units issued | shares |  | 1,040,000 |  |  |  |  |  |
Teekay Offshore [Member] | Common Units [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Payment in kind distributions, Units | shares |  |  |  |  |  | 4,700,000 |  |
Contributions |  |  |  |  |  | $ 500 |  |
Teekay Offshore [Member] | Common Units [Member] | Petrojarl Knarr FPSO [Member] | Fair Value Asset (Liability) [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Purchase of subsidiary common stock |  |  |  |  |  |  | $ 300,000 |
Number of common stock issued (in shares) | shares |  |  |  |  |  |  | 14,400,000 |
Teekay Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Increase in carrying amount of non-controlling interest |  |  |  |  |  |  | $ 168,100 |
Teekay Tankers [Member] | Ship-to-Ship Transfer Business (SPT) [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel | 6 |  |  |  |  |  |  |
Purchase price of acquisition |  |  | $ 47,300 |  |  |  |  |
Teekay Tankers [Member] | Suezmax Tankers [Member] | Principal Maritime Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  |  |  | 12 |
Teekay Tankers [Member] | Class A [Member] | Suezmax Tankers [Member] | Principal Maritime Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Purchase of subsidiary common stock |  |  |  |  |  |  | $ 30,000 |
Teekay Tankers [Member] | Class B [Member] | Ship-to-Ship Transfer Business (SPT) [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Purchase of subsidiary common stock |  |  |  |  |  |  | $ 45,500 |
Number of common stock issued (in shares) | shares |  |  |  | 6,500,000 |  |  | 6,500,000 |
Teekay Tankers [Member] | Retained Earnings [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Decrease in retained earnings |  |  |  |  |  |  | $ 168,100 |
Teekay Tankers [Member] | Teekay Tanker Operations Ltd [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Percentage of ownership acquired |  |  |  | 50.00% |  |  |  |
Commercially managed tanker pools | pool |  |  |  | 3 |  |  |  |
Value of the assets acquired, including working capital |  |  |  | $ 16,900 |  |  |  |
Purchase price of acquisition |  |  |  | $ 23,500 |  |  |  |
Teekay Tankers [Member] | Teekay Tanker Operations Ltd [Member] | Class B [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of common shares issued for acquisition | shares |  |  |  | 4,200,000 |  |  |  |
Teekay Parent [Member] | Class A [Member] | Suezmax Tankers [Member] | Principal Maritime Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of common stock issued (in shares) | shares |  |  |  |  |  |  | 4,500,000 |
Teekay Tanker Operations Ltd [Member] | Class B [Member] | Teekay Parent [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Value of common shares issued for acquisition |  |  |  | $ 17,000 |  |  |  |
Shares issued, price per share | $ / shares |  |  |  | $ 4.03 |  |  |  |
Teekay Tanker Operations Ltd [Member] | Class B [Member] | Teekay Parent [Member] | Fair Value Asset (Liability) [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Value of common shares issued for acquisition |  |  |  | $ 15,600 |  |  |  |
Shares issued, price per share | $ / shares |  |  |  | $ 3.70 |  |  |  |
General Partner [Member] | Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Interest of Company's general partner |  |  |  |  |  | 2.00% |  |
Payment in Kind [Member] | Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Value of common units |  |  |  |  |  | $ 24,900 |  |
Payment in Kind [Member] | Teekay Offshore [Member] | Common Units [Member] | Teekay Parent [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Payment in kind distributions, Units | shares |  |  |  |  |  | 2,500,000 |  |
Preferred D Offering [Member] | Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Teekay Corporation portion of purchase |  | $ 26,000 |  |  |  | $ 26,000 |  |
Net cash proceeds |  | $ 71,300 |  |  |  | 71,250 |  |
Value of common units |  |  |  |  |  | $ 100,000 |  |
The $4.55 Warrants [Member] | Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Units issued | shares |  | 4,500,000 |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  | 4,500,000 |  |  |  |  |  |
Fixed price of stock purchase warrants, per share | $ / shares |  | $ 4.55 |  |  |  |  |  |
Net cash proceeds |  | $ 7,000 |  |  |  |  |  |
The $4.55 Warrants [Member] | Teekay Offshore [Member] | Affiliated Entity [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  | 1,170,000 |  |  |  |  |  |
Fixed price of stock purchase warrants, per share | $ / shares |  | $ 4.55 |  |  |  |  |  |
The $6.05 Warrants [Member] | Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Units issued | shares |  | 2,250,000 |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  | 2,250,000 |  |  |  |  |  |
Fixed price of stock purchase warrants, per share | $ / shares |  | $ 6.05 |  |  |  |  |  |
Exercise premium percent |  | 33.00% |  |  |  |  |  |
Net cash proceeds |  | $ 3,100 |  |  |  |  |  |
The $6.05 Warrants [Member] | Teekay Offshore [Member] | Affiliated Entity [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  | 585,000 |  |  |  |  |  |
Fixed price of stock purchase warrants, per share | $ / shares |  | $ 6.05 |  |  |  |  |  |
The Warrants [Member] | Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Warrant term |  | 7 years |  |  |  |  |  |
Period after which warrants are exercisable |  | 6 months |  |  |  |  |  |

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- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition The increase (decrease) during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not arise in a deconsolidation of the subsidiary from the consolidated financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4M -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591554-111686 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Represents the purchase by the parent of an additional equity interest in a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The purchase of the additional equity interest represented by this element increases the parent's controlling interest in the subsidiary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4M -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591554-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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