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Real Estate and Intangible Assets - Carrying Value of Intangible Assets and Accumulated Amortization (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items] |  |  |
Below market leases, gross | $ (59,411) | $ (66,138) |
Below market leases, accumulated amortization | 30,087 | 26,141 |
Amortization of intangible assets | 16,700 | 19,100 | $ 20,700
Amortization related to below-market lease | 8,000 | 5,100 | 4,100
Lease Intangibles |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 246,644 | 259,018 |
Finite-lived intangible assets, accumulated amortization | (145,596) | (147,396) |
In-place Leases |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 98,615 | 104,394 |
Finite-lived intangible assets, accumulated amortization | (63,269) | (63,240) |
Leasing Costs |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 84,844 | 85,038 |
Finite-lived intangible assets, accumulated amortization | (46,096) | (45,501) |
Customer Relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 63,185 | 69,586 |
Finite-lived intangible assets, accumulated amortization | (36,231) | (38,655) |
Above Market Leases |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 13,431 | 15,371 |
Finite-lived intangible assets, accumulated amortization | (10,675) | (11,909) |
Amortization of intangible assets | $ 600 | $ 800 | $ 800

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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