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Leases - Summary of Residential and Non-Residential Accounts Receivable and Straight-Line Receivable Balances (Details) - Other Assets [Member] - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Residential Leases [Member]    
Operating Leased Assets [Line Items]    
Resident/tenant accounts receivable balances $ 24,298 $ 4,040
Allowance for doubtful accounts (16,286) (1,190)
Net receivable balances 8,012 2,850
Straight-line receivable balances 11,618 1,841
Non-Residential Leases [Member]    
Operating Leased Assets [Line Items]    
Resident/tenant accounts receivable balances 7,839 1,766
Allowance for doubtful accounts (6,595) (1,412)
Net receivable balances 1,244 354
Straight-line receivable balances $ 13,816 $ 26,450