Fair Value Measurements - Summary of Fair Values of Real Estate Investments Measured at Nonrecurring Basis (Details) - Fair Value Measurements, Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Net Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-financial long-lived assets	$ 4,754	$ 3,864
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-financial long-lived assets	4,754	3,864
Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-financial long-lived assets	0	0
Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-financial long-lived assets	0	0
Fair Value | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-financial long-lived assets	$ 4,754	$ 3,864