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Segment Reporting - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Segment reporting
Total assets	$ 7,066,048	$ 6,476,424
Operating Segments | Office Portfolio
Segment reporting
Total assets	2,990,711	3,092,289
Operating Segments | SHOP
Segment reporting
Total assets	2,948,995	2,912,570
Non-Segment
Segment reporting
Total assets	$ 1,126,342	$ 471,565

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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