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No definition available.

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States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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No definition available.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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Unsecured Term Loan (Details) - USD ($) $ in Thousands			9 Months Ended
Unsecured Term Loan (Details) - USD ($) $ in Thousands	Sep. 30, 2022	May 17, 2022	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Unsecured term loan	$ 730,000	$ 730,000	$ 730,000	$ 0
Unsecured Term Loan
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 730,000
Debt Instrument, Interest Rate Terms		At BPLP’s option, the Unsecured Term Loan will bear interest at a rate per annum equal to (A) (1) a base rate per annum equal to the greater of (a) the federal funds rate plus 0.5%, (b) the administrative agent’s prime rate, (c) term SOFR plus 1.00% and (d) 1.00%, or (2) a term SOFR rate per annum equal to the forward-looking SOFR term rate administered by CME Group Benchmark Administration (“CME”) two business days prior to the commencement of such interest period; or if the rate is unavailable, then the forward-looking SOFR term rate administered by CME on the first business day immediately prior thereto, in each case, plus 0.10%, and (B) a margin ranging from zero to 160 basis points based on BPLP’s credit rating.
Unsecured term loan	$ 730,000	$ 730,000	$ 730,000
Debt Instrument, Covenant Description		The Unsecured Term Loan contains customary representations and warranties, affirmative and negative covenants and events of default provisions, including the failure to pay indebtedness, breaches of covenants and bankruptcy and other insolvency events, which could result in the acceleration of the obligation to repay any outstanding amount under the Unsecured Term Loan. Among other covenants, the Unsecured Term Loan requires 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.
Debt Instrument, Covenant Compliance			At September 30, 2022, BPLP was in compliance with each of these financial and other covenant requirements.
Debt Instrument, Basis Spread on Variable Rate		1.00%
Debt Instrument, Maturity Date		May 16, 2023
Debt Instrument, Interest Rate, Increase (Decrease)		0.10%
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
Unsecured Term Loan \| Fed Funds Effective Rate Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Unsecured Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.95%	1.00%
Unsecured Term Loan \| Margin based on borrower's credit rating \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Increase (Decrease)		1.60%
Unsecured Term Loan \| Margin based on borrower's credit rating \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Increase (Decrease)		0.00%