Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Level 1 | Interest rate swap
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Liabilities	$ 0	$ 0
Level 1 | Real Estate Investment
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Assets		0
Level 2 | Interest rate swap
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Liabilities	28	12
Level 2 | Real Estate Investment
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Assets		0
Level 3 | Interest rate swap
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Liabilities	0	0
Level 3 | Real Estate Investment
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Assets		4,379
Carrying and Fair Value | Interest rate swap
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Liabilities	$ 28	12
Carrying and Fair Value | Real Estate Investment
Financial Instruments Measured at Fair Value: Available-for-sale securities - (Corporate equity securities)
Total Financial Assets		$ 4,379