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Real Estate and Intangible Assets - Carrying Value of Intangible Assets and Accumulated Amortization (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Finite-Lived Intangible Assets [Line Items] |  |
Below market leases and deferred revenue, lease intangibles | $ (64,907) | $ (48,241)
Below market leases and deferred revenue, accumulated amortization | 24,206 | 21,471
Lease Intangibles |  |
Finite-Lived Intangible Assets [Line Items] |  |
Lease Intangibles | 261,719 | 259,300
Accumulated Amortization | (148,726) | (144,806)
In-place leases |  |
Finite-Lived Intangible Assets [Line Items] |  |
Lease Intangibles | 105,827 | 105,891
Accumulated Amortization | (63,850) | (62,604)
Leasing costs |  |
Finite-Lived Intangible Assets [Line Items] |  |
Lease Intangibles | 84,802 | 81,487
Accumulated Amortization | (45,430) | (43,982)
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Lease Intangibles | 71,090 | 71,922
Accumulated Amortization | (39,446) | (38,220)
Above market leases |  |
Finite-Lived Intangible Assets [Line Items] |  |
Lease Intangibles | 15,371 | 15,538
Accumulated Amortization | $ (11,707) | $ (11,520)

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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