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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Long-Term Debt - Other - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) credit_facility term_loan	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2020 USD ($)	Mar. 24, 2020 USD ($)
Debt Instrument [Line Items]
Long-term debt	$ 1,438,331	$ 1,833,875
Aggregate principal amount	$ 1,842,546	$ 1,987,558
Weighted-average interest rate for the Partnership's long-term debt outstanding	4.12%	4.44%
Foreign exchange (losses) gains	$ (9,640)	$ 1,371	$ (26,933)
Aggregate annual long-term debt principal repayments, 2020	393,800
Aggregate annual long-term debt principal repayments, 2021	412,000
Aggregate annual long-term debt principal repayments, 2022	298,500
Aggregate annual long-term debt principal repayments, 2023	210,300
Aggregate annual long-term debt principal repayments, 2024	102,100
Aggregate annual long-term debt principal repayments, thereafter	$ 425,800
Number of term loans \| term_loan	7
Long-term debt	$ 1,831,396	1,969,776
Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.30%
Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.25%
Other U.S. Dollar-denominated Loans
Debt Instrument [Line Items]
Aggregate principal amount	$ 3,300	3,300
Long-term Debt
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,114,707	$ 1,212,504
Long-term Debt \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.30%
Long-term Debt \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.25%
Require minimum vessel value to outstanding loan principal balance ratios
Debt Instrument [Line Items]
Number of term loans \| credit_facility	3
Long-term debt	$ 400,800
Teekay Nakilat Joint Venture Loan \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings provided under revolving credit facilities	$ 225,000
Long-term debt	207,000
Aggregate annual long-term debt principal repayments, 2020	23,400
Aggregate annual long-term debt principal repayments, 2021	24,400
Aggregate annual long-term debt principal repayments, 2022	$ 330,400
Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings provided under revolving credit facilities				$ 225,000	$ 225,000
Long Term Debt1 \| Require minimum vessel value to outstanding loan principal balance ratios
Debt Instrument [Line Items]
Percentage of vessel value to outstanding loan principal balance	115.00%
Long Term Debt2 \| Require minimum vessel value to outstanding loan principal balance ratios
Debt Instrument [Line Items]
Percentage of vessel value to outstanding loan principal balance	120.00%
Long Term Debt3 \| Require minimum vessel value to outstanding loan principal balance ratios
Debt Instrument [Line Items]
Percentage of vessel value to outstanding loan principal balance	135.00%
Transportation equipment \| Long Term Debt1
Debt Instrument [Line Items]
Percentage of vessel value to outstanding loan principal balance	210.00%
Transportation equipment \| Long Term Debt2
Debt Instrument [Line Items]
Percentage of vessel value to outstanding loan principal balance	138.00%
Transportation equipment \| Long Term Debt3
Debt Instrument [Line Items]
Percentage of vessel value to outstanding loan principal balance	194.00%
Teekay Nakilat Joint Venture \| RasGas II joint venture
Debt Instrument [Line Items]
Noncontrolling ownership percentage	30.00%