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Minimum threshold per share for payment of performance fee.

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Amount of revenue earned by the entity based on the investment results achieved. Excludes fees based upon a percentage of the assets under management not performance-related.

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Pool receivables from affiliates, net.

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The manager performance fee as a percentage of a selected base as determined by the company.

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle).

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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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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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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Related Party Transactions - Additional Information (Detail) - USD ($)		1 Months Ended		12 Months Ended
	Nov. 27, 2017	Nov. 30, 2017	Jan. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 31, 2017	Aug. 31, 2014
Related Party Transaction [Line Items]
Proceeds from issuance of common stock, net of offering costs (in shares)			269,397
Percentage of voting interests acquired						50.00%
Shares issued, price per share (in dollars per share)			$ 18.56
Proceeds from equity offerings, net of offering costs				$ 0	$ 0	$ 8,521,000
Reimbursement of manager's crewing and manning costs				2,139,000	18,570,000
Working capital advanced to pool managers				$ 697,000	39,663,000
Minimum threshold for payment of performance fee to manager (in dollars per share)				$ 25.60
Percentage of performance fee payable on gross cash available for distribution				20.00%
Performance Fee				$ 0	0	0
Pool Receivables From Affiliates Net				0	56,549,000
RSA Participants [Member]
Related Party Transaction [Line Items]
Pool Receivables From Affiliates Net				0	56,500,000
Lay-up Services
Related Party Transaction [Line Items]
Revenue from Related Parties				0	0	33,000
Other Income
Related Party Transaction [Line Items]
Revenue from Related Parties				320,000	1,019,000	1,939,000
Other Income \| Entities Under Common Control
Related Party Transaction [Line Items]
Revenue from Related Parties				0	0	1,772,000
Technical management fee revenue
Related Party Transaction [Line Items]
Revenue from Related Parties				765,000	13,811,000	7,666,000
Payable to Manager
Related Party Transaction [Line Items]
Reimbursement of manager's crewing and manning costs				7,900,000	7,600,000
Vessels Hire \| RSA Participants [Member] \| Aframax Tanker
Related Party Transaction [Line Items]
Expenses due to hiring vessels				$ 8,800,000	$ 28,400,000	$ 14,100,000
TIL
Related Party Transaction [Line Items]
Business acquisition, share price per share agreed (in dollars per share)	$ 13.60
Percentage of voting interests acquired		88.70%
Shares issued, price per share (in dollars per share)		$ 13.6
TIL \| Class A
Related Party Transaction [Line Items]
Proceeds from issuance of common stock, net of offering costs (in shares)	11,122,193	11,122,193
Purchase price consideration	$ 151,300,000	$ 151,300,000
Business acquisition, share price per share agreed (in dollars per share)	$ 13.6	$ 13.6
TIL \| Class A \| Teekay Corporation
Related Party Transaction [Line Items]
Proceeds from issuance of common stock, net of offering costs (in shares)	1,031,250
Teekay Tanker Operations Ltd
Related Party Transaction [Line Items]
Shares issued, price per share (in dollars per share)							$ 15.04
Private Placement \| Class A \| Teekay Corporation
Related Party Transaction [Line Items]
Proceeds from issuance of common stock, net of offering costs (in shares)			269,397
Shares issued, price per share (in dollars per share)			$ 18.6
Proceeds from equity offerings, net of offering costs			$ 5,000,000
Entities Under Common Control \| Teekay Tanker Operations Ltd
Related Party Transaction [Line Items]
Percentage of voting interests acquired								50.00%
Entities Under Common Control \| Teekay Tanker Operations Ltd
Related Party Transaction [Line Items]
Percentage of voting interests acquired							50.00%
Entities Under Common Control \| Teekay Tanker Operations Ltd \| Teekay Corporation
Related Party Transaction [Line Items]
Percentage of voting interests acquired								50.00%