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Derivatives - Fair Value Interest Rate Swaps (Details) - USD ($)
12 Months Ended
Jul. 07, 2016
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2021
Derivative [Line Items]          
Total notional amount         $ 36,050,000
Effective date   Oct. 31, 2019      
Maturity date   Oct. 31, 2024      
Reported Value Measurement | Interest Rate Swaps          
Derivative [Line Items]          
Liability balance at December 31, 2021 (included in Accrued expenses and other liabilities)     $ 0   $ 452,000
Unsecured Term Loan Due June 2023 | LIBOR          
Derivative [Line Items]          
Reference rate (as a percent)   0.85%      
Unsecured Debt | Interest Rate Swaps          
Derivative [Line Items]          
Effective fixed interest rate   3.33% 1.07% 2.07%  
Unsecured Debt | LIBOR | Interest Rate Swaps          
Derivative [Line Items]          
Effective fixed interest rate 1.07% 1.43%      
Unsecured Debt | Unsecured Term Loan Due June 2023 | LIBOR          
Derivative [Line Items]          
Reference rate (as a percent) 1.00% 1.90% 1.00%