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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 ($)
Mar. 31, 2021
Dec. 31, 2020
Derivatives, Fair Value [Line Items]    
Notional Amount $ 265,000,000  
Pay Rate 2.1485%  
Asset $ 0 $ 0
Liability $ (7,450,000) $ (8,849,000)