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Derivative Instruments - Cash Flow Hedges of Interest Rate Swaps (Details) - Accrued and other liabilities - Cash Flow Hedging - Designated as Hedging Instrument - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Interest rate Swap Maturing 2029 |  |
Derivative [Line Items] |  |
Interest Rate | 3.14% |
Notional amount | $ 57.9 |
Fair value of interest rate swap liability | $ (4.8) | $ (0.2)
Interest Rate Swap Maturing 2023 |  |
Derivative [Line Items] |  |
Interest Rate | 3.35% |
Notional amount | $ 50.0 |
Fair value of interest rate swap liability | $ (1.3) |

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