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Long-Term Debt - Credit Facilities And Senior Notes (Details) - USD ($) $ in Thousands | 9 Months Ended | 10 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 25, 2019 | Oct. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Sep. 18, 2019 | May 18, 2017 | Sep. 15, 2014
Debt Instruments |  |  |  |  |  |  |  |
Restricted cash |  |  | $ 50,000 | $ 0 |  |  |  |
Weighted average interest rate |  |  | 6.30% | 6.40% | 5.40% |  |  |
Total interest incurred on long-term debt |  |  | $ 46,638 | $ 46,884 | $ 39,775 |  |  |
Line of credit facility, commitment fee amount |  |  | $ 791 | $ 0 | $ 0 |  |  |
$250 Million Senior Unsecured Notes due 2019 (2019 Notes) |  |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  | $ 250,000
Debt Instrument, Maturity Date |  |  | Oct. 30, 2019 |  |  |  |  |
Amount repaid |  | $ 204,600 |  |  |  |  |  |
Senior notes, terms |  |  | The 2019 Notes bore interest from the date of the original issue until maturity at a rate of 6.25% per year, payable quarterly in arrears on January 30, April 30, July 30 and October 30 of each year. |  |  |  |  |
Senior notes interest rate |  |  | 6.25% |  |  |  |  |
Debt Instrument, frequency of payments |  |  | quarterly |  |  |  |  |
$675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) |  |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  | $ 675,000 |  |
Credit facility amount drawn down | $ 675,000 |  |  |  |  |  |  |
Line of credit facility, repayment installments |  |  | 20 |  |  |  |  |
Debt instrument, description of variable rate basis |  |  | LIBOR |  |  |  |  |
Maturity Profile |  |  | 5 years |  |  |  |  |
Loan Margin Percentage |  |  | 3.00% |  |  |  |  |
Vessels provided as collateral |  |  | The $675 Million credit facility is secured by, among other things, first priority mortgages on the six LNG vessels in the Partnership's fleet. |  |  |  |  |
Debt Instrument, frequency of payments |  |  | quarterly |  |  |  |  |
$675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) | Minimum |  |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |  |
Restricted cash |  |  | $ 50,000 |  |  |  |  |
$480 Million Senior Secured Term Loan Facility (Term Loan B) |  |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  | $ 480,000 |
Debt Instrument, Maturity Date |  |  | May 18, 2023 |  |  |  |  |
Amount repaid | $ 470,400 |  |  |  |  |  |  |
Debt instrument, description of variable rate basis |  |  | LIBOR |  |  |  |  |
Debt instrument, payment percentage |  |  | 0.25% |  |  |  |  |
Debt Instrument, frequency of payments |  |  | quarterly |  |  |  |  |

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