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Real Estate (Schedule of Fixed and Variable Lease Payments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Operating Leases, Income Statement, Lease Revenue | $ 77,821 | $ 75,247 | $ 232,266 | $ 218,777
Fixed Lease Escalation [Member] |  |  |  |
Operating Leases, Income Statement, Lease Revenue | 67,342 | 66,671 | 205,444 | 194,706
Variable Lease Escalation [Member] |  |  |  |
Operating Leases, Income Statement, Lease Revenue | 1,386 | 1,248 | 4,151 | 3,611
Straight Line Rent Income [Member] |  |  |  |
Operating Leases, Income Statement, Lease Revenue | 5,086 | 5,720 | 15,481 | 16,255
Escrow Funds Received From Tenants [Member] |  |  |  |
Operating Leases, Income Statement, Lease Revenue | $ 4,007 | $ 1,608 | $ 7,190 | $ 4,205

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- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121549951&loc=d3e39896-112707 + Details
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