Variable Interest Entities - Schedule of Variable Interest Entities (Details) $ in Thousands	Sep. 30, 2025 USD ($)
LLC Investment and Other Equity Investments
Variable Interest Entity [Line Items]
Maximum Loss Exposure and Carrying Amount	$ 17,515
Needham Land Parcel JV and HQ Point Preferred Equity Investment
Variable Interest Entity [Line Items]
Maximum Loss Exposure and Carrying Amount	59,308
Loans Receivable Investments
Variable Interest Entity [Line Items]
Maximum Loss Exposure and Carrying Amount	$ 7,048