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Debt - Term Loan B Facility (Details) - USD ($) |  | 9 Months Ended
--- | --- | ---
Jan. 11, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Debt Instrument [Line Items] |  |  |
Proceeds from borrowings |  | $ 205,950,000 | $ 470,505,000
London Interbank Offered Rate (LIBOR) |  |  |
Debt Instrument [Line Items] |  |  |
Margin on LIBOR rate | 3.25% |  |
Term Loan | Term Loan B |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, face amount | $ 250,000,000.0 |  |
Proceeds from borrowings | 232,000,000.0 |  |
Periodic payment, principal | $ 3,100,000 |  |
Term Loan | Term Loan B | London Interbank Offered Rate (LIBOR) |  |  |
Debt Instrument [Line Items] |  |  |
Margin on LIBOR rate | 6.75% |  |
Term Loan | Term Loan B | Base Rate |  |  |
Debt Instrument [Line Items] |  |  |
Margin on LIBOR rate | 5.75% |  |

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