Segment Information (Schedule of Reconciliation of Revenue to Rental Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	$ 871,510	$ 859,227	$ 2,605,182	$ 2,549,148
Rental Revenue Total	858,372	848,808	2,564,820	2,517,782
Management Service [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Other revenue	9,317	6,770	27,938	19,276
Real Estate, Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Other revenue	$ 3,821	$ 3,649	$ 12,424	$ 12,090

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details

BXP, Inc. 10-Q