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Other assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Acquired in-place leases | $ 461,613 | $ 615,638
Deferred compensation plan | 40,365 | 33,534
Deferred financing costs – unsecured senior line of credit | 30,897 | 31,747
Deposits | 25,863 | 20,805
Furniture, fixtures, and equipment | 26,560 | 23,186
Net investment in direct financing lease | 40,097 | 39,352
Notes receivable | 15,841 | 19,875
Operating lease right-of-use assets | 516,452 | 558,255
Other assets | 88,453 | 80,724
Prepaid expenses | 30,969 | 28,294
Property, plant, and equipment | 144,784 | 148,530
Other assets | $ 1,421,894 | $ 1,599,940

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