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Senior Notes - Summary of Senior Notes (Details) | Dec. 06, 2019 | May 08, 2018
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May 2018 Senior Notes |  |
Debt Instrument [Line Items] |  |
Interest rate |  | 5.25%
Maturity date |  | May 15, 2026
December 2019 Senior Notes |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.00% |
Maturity date | Jun. 15, 2028 |

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