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v3.20.1

Long-Term Debt - Narrative (Details) - USD ($) |  | 3 Months Ended
--- | --- | ---
Dec. 18, 2015 | Mar. 31, 2020 | Mar. 31, 2019
Debt Instrument [Line Items] |  |  |
Cash payments for interest |  | $ 5,800,000 | $ 7,200,000
Revolving Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Maximum borrowing capacity | $ 75,000,000 |  |
Term of credit facility | 5 years |  |
Term loan A-1 | London Interbank Offered Rate (LIBOR) |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate |  | 1.50% |
Term loan A-2 | London Interbank Offered Rate (LIBOR) |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate |  | 1.75% |

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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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