Tenant Leases (Future Minimum Rentals To Be Received Under Non-Cancelable Operating Leases) (Details) - USD ($) |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2019 |
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| Property Subject to or Available for Operating Lease [Line Items] | ||
| Year one | $ 117,228,000 | $ 115,418,000 |
| Year two | 114,101,000 | 107,027,000 |
| Year three | 108,406,000 | 103,417,000 |
| Year four | 92,605,000 | 99,544,000 |
| Year Five | 88,309,000 | 88,082,000 |
| Thereafter | 462,920,000 | 488,305,000 |
| Total | $ 983,569,000 | $ 1,001,793,000 |
| Tenant Leases [Member] | ||
| Property Subject to or Available for Operating Lease [Line Items] | ||
| Operating leases with various expiration dates through year | 2041 | |
| Multi-Family Properties [Member] | ||
| Property Subject to or Available for Operating Lease [Line Items] | ||
| Lease period | 1 year |
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- Definition Lease Expiration Year No definition available.
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of lease payments to be received by lessor for operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lease payment to be received by lessor for operating lease in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lease payment to be received by lessor for operating lease in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lease payment to be received by lessor for operating lease in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lease payment to be received by lessor for operating lease after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lease payment to be received by lessor for operating lease in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lease payment to be received by lessor for operating lease in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. No definition available.
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