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Financial Instruments and Fair Values - Summary of the Terms of Agreements and the Fair Value of Derivative Financial Instruments (Details) - LIBOR - Cash flow hedging - Designated as hedging instrument - Interest Rate Swap, One Month LIBOR, 2.1485% - USD ($) | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Notional Amount | $ 265,000,000 |
Pay Rate | 2.1485% |
Asset | $ 0 | $ 0
Liability | $ (6,176,000) | $ (8,849,000)

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