Organization (Details)	Jun. 30, 2023 ft² property	Jul. 29, 2021
Real Estate Properties
Number of properties | property	62
Square feet | ft²	20,520,317
Consolidated portfolio
Real Estate Properties
Number of properties | property	58
Square feet | ft²	17,147,793
Consolidated portfolio | Office
Real Estate Properties
Number of properties | property	49
Square feet | ft²	13,925,310
Consolidated portfolio | Studio
Real Estate Properties
Number of properties | property	3
Square feet | ft²	1,256,241
Consolidated portfolio | Future development
Real Estate Properties
Number of properties | property	6
Square feet | ft²	1,966,242
Unconsolidated portfolio
Real Estate Properties
Number of properties | property	4
Square feet | ft²	3,372,524
Unconsolidated portfolio | Bentall Centre
Real Estate Properties
Joint venture, ownership percentage	20.00%
Unconsolidated portfolio | Joint Venture Sunset Glenoaks Studios Property
Real Estate Properties
Joint venture, ownership percentage	50.00%
Unconsolidated portfolio | Sunset Waltham Cross Studios
Real Estate Properties
Joint venture, ownership percentage	35.00%	35.00%
Unconsolidated portfolio | Office
Real Estate Properties
Number of properties | property	1
Square feet | ft²	1,514,177
Unconsolidated portfolio | Studio
Real Estate Properties
Number of properties | property	1
Square feet | ft²	241,000
Unconsolidated portfolio | Future development
Real Estate Properties
Number of properties | property	2
Square feet | ft²	1,617,347