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Derivatives - Summary of Terms of Derivative Financial Instrument (Details) - Cap Agreement - USD ($)
6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Derivative [Line Items]    
Notional Amount $ 7,500,000 $ 7,500,000
Effective Date Dec. 24, 2018  
Maturity Date Dec. 20, 2021  
Minimum    
Derivative [Line Items]    
Strike 3.50%  
Maximum    
Derivative [Line Items]    
Strike 4.00%