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Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Mar. 21, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Debt Instrument |  |  |
Long-term debt | $ 1,582,217 |  | $ 1,529,501
Senior Notes |  |  |
Debt Instrument |  |  |
Interest rate (as a percent) | 6.00% |  |
Senior Notes | Partnership’s 6.875% senior notes due April 2027 |  |  |
Debt Instrument |  |  |
Long term debt gross | $ 500,000 |  | 0
Less: Deferred financing costs, net of amortization | (9,111) |  | 0
Long-term debt | $ 490,889 |  | 0
Interest rate (as a percent) | 6.875% | 6.875% |
Senior Notes | Partnership’s 6% senior notes due April 2021 |  |  |
Debt Instrument |  |  |
Long term debt gross | $ 350,000 |  | 350,000
Less: Debt discount, net of amortization | (1,598) |  | (1,789)
Less: Deferred financing costs, net of amortization | (2,055) |  | (2,311)
Long-term debt | $ 346,347 |  | 345,900
Interest rate (as a percent) | 6.00% |  |
Senior Notes | Partnership’s 6% senior notes due October 2022 |  |  |
Debt Instrument |  |  |
Long term debt gross | $ 350,000 |  | 350,000
Less: Debt discount, net of amortization | (2,590) |  | (2,766)
Less: Deferred financing costs, net of amortization | (2,929) |  | (3,133)
Long-term debt | $ 344,481 |  | 344,101
Interest rate (as a percent) | 6.00% |  |
Revolving Credit Facility | Partnership Credit Facility |  |  |
Debt Instrument |  |  |
Long-term debt | $ 400,500 |  | $ 839,500

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