SUBSEQUENT EVENTS (Details) - Subsequent Event - Schuylkill Yards West ft² in Thousands, $ in Millions	Feb. 02, 2021 USD ($) ft²
Subsequent Event [Line Items]
Area of building to be constructed \| ft²	570
Estimated project cost	$ 287
Funding committed by other party	$ 58
Ownership interest held by partner	45.00%

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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