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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	Mar. 31, 2021	Dec. 31, 2020
Residential Leases [Member]
Operating Leased Assets [Line Items]
Resident/tenant accounts receivable balances	$ 37,248	$ 30,856
Allowance for doubtful accounts	(31,799)	(24,021)
Net receivable balances	5,449	6,835
Straight-line receivable balances	25,360	19,992
Non-Residential Leases [Member]
Operating Leased Assets [Line Items]
Resident/tenant accounts receivable balances	6,847	7,598
Allowance for doubtful accounts	(5,724)	(6,527)
Net receivable balances	1,123	1,071
Straight-line receivable balances	$ 13,409	$ 13,413

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- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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