2021 Credit Facility and 2023 Unsecured Term Loan Compliance (Details) - 2021 Credit Facility and 2023 Unsecured Term Loan [Member]	6 Months Ended
	Jun. 30, 2023
Debt Instrument [Line Items]
Debt Instrument, Covenant Description	Among other covenants, the 2021 Credit Facility and the 2023 Unsecured Term Loan require that BPLP maintain on an ongoing basis: (1) a leverage ratio not to exceed 60%, however, the leverage ratio may increase to no greater than 65% provided that it is reduced back to 60% within one year, (2) a secured debt leverage ratio not to exceed 55%, (3) a fixed charge coverage ratio of at least 1.40, (4) an unsecured debt leverage ratio not to exceed 60%, however, the unsecured debt leverage ratio may increase to no greater than 65% provided that it is reduced to 60% within one year, (5) an unsecured debt interest coverage ratio of at least 1.75 and (6) limitations on permitted investments.
Leverage ratio	60.00%
Leverage ratio - maximum	65.00%
Secured debt leverage ratio - maximum	55.00%
Fixed charge coverage - minimum	1.40
Unsecured debt leverage ratio	60.00%
Unsecured debt leverage ratio - maximum	65.00%
Unsecured debt interest coverage ratio	1.75
Debt Instrument, Covenant Compliance	At June 30, 2023, BPLP was in compliance with each of these financial and other covenant requirements.