Investment in Unconsolidated Fund - Narrative (Details) ft² in Millions	Jun. 30, 2022 ft² property	Jun. 30, 2021 ft² property
Schedule of Equity Method Investments [Line Items]
Number of properties	84
Percentage of amounts related to the Fund	100.00%
Partnership X
Schedule of Equity Method Investments [Line Items]
Equity interest of the fund (percent)	33.50%	33.50%
Office Buildings
Schedule of Equity Method Investments [Line Items]
Number of properties	71
Office Buildings | Unconsolidated Fund properties
Schedule of Equity Method Investments [Line Items]
Number of properties	2	2
Area of real estate portfolio (sq ft) | ft²	0.4	0.4