Commercial Paper, Maximum Borrowing Capacity

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- Definition

Debt Instrument, Alternate Basis Spread on Variable Rate

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No definition available.

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- Definition

Extension Option (in months)

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No definition available.

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- Definition

Extension Option (in years)

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No definition available.

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- Definition

Fixed charge coverage - maximum

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No definition available.

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- Definition

Fixed charge coverage - minimum

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No definition available.

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- Definition

Interest Coverage - Minimum

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No definition available.

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- Definition

Leverage ratio

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No definition available.

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- Definition

Leverage ratio - maximum

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No definition available.

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- Definition

Number of extensions

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No definition available.

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- Definition

Secured debt leverage ratio - maximum

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No definition available.

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- Definition

Unsecured debt interest coverage ratio

+ References

No definition available.

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Balance Type:	na
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- Definition

Unsecured debt leverage ratio

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No definition available.

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- Definition

Unsecured debt leverage ratio - maximum

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No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

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

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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- Definition

Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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- Definition

Description of interest rate for borrowing under credit facility. Includes, but is not limited to, terms and method for determining interest rate.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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Amount of cash inflow from debt classified as other.

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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is uncollateralized (where debt is not backed by the pledge of collateral).

+ References

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The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

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Unsecured Credit Facility and Unsecured Term Loans (Details) $ in Thousands					12 Months Ended
	Dec. 31, 2025 USD ($) Rate	Apr. 22, 2025	Mar. 28, 2025 USD ($)	Sep. 27, 2024 USD ($) Rate	Dec. 31, 2025 USD ($) Rate	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Apr. 08, 2025 USD ($)	Mar. 27, 2025 USD ($)	Apr. 17, 2024 USD ($)	Jan. 04, 2023 USD ($)
Line of Credit Facility [Line Items]
Loss from early extinguishment of debt					$ 338	$ 0	$ 0
Line of Credit Facility, Interest Rate Description			At BPLP’s option, loans under the 2025 Credit Facility that are advanced in U.S. dollars will bear interest at a rate per annum equal to Term SOFR, Daily Simple SOFR or a Base Rate (each as defined in the Tenth Amended and Restated Credit Agreement, which governs the 2025 Credit Facility (the “Credit Agreement”)), in each case, plus a margin based on BPLP’s credit rating ranging from (i) for Term SOFR and Daily Simple SOFR loans, (a) under the Revolving Facility, 70.0 to 140.0 basis points, or (b) under the Term Loan Facility, 75.0 to 160.0 basis points (plus a SOFR conversion adjustment of 10 basis points), and (ii) for Base Rate loans, (a) under the Revolving Facility, 0 to 40.0 basis points, or (b) under the Term Loan Facility, 0 to 60.0 basis points.
Repayments of Unsecured Debt					850,000	700,000	500,000
Long-term Line of Credit	$ 0				0	0
Borrowings on unsecured term loans					$ 700,000	0	$ 1,200,000
Term Loan Facility
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 700,000
Debt Instrument, Maturity Date			Mar. 30, 2029
Number of extensions			2
Extension Option (in months)			6
Debt Instrument, Basis Spread on Variable Rate		0.10%
Debt Instrument, Alternate Basis Spread on Variable Rate	0.00%				0.00%
Proceeds from Unsecured Lines of Credit			$ 700,000
Debt	$ 700,000				$ 700,000
2023 Unsecured Term Loan
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity											$ 1,200,000
Repayments of Unsecured Debt			700,000
Debt						700,000
Payment for Debt Extinguishment or Debt Prepayment Cost			0
2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 100,000
Number of extensions				3
Line of Credit Facility, Interest Rate Description				At BPLP’s option, loans under the 2024 Unsecured Term Loan will bear interest at a rate per annum equal to (1) a base rate equal to the highest of (a) zero, (b) Prime Rate, (c) the Federal Funds effective rate plus 0.50%, and (d) Term SOFR for a one-month period plus 1.10%, in each case, plus a margin ranging from 0 to 60 basis points based on BPLP’s credit rating; or (2) a rate equal to adjusted Term SOFR or Daily Simple SOFR with a one-month period plus, a margin ranging from 75 to 160 basis points based on BPLP’s credit rating.
Debt Instrument, Covenant Description				Among other covenants, the 2024 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 to 1.00, (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 to 1.00 and (6) limitations on permitted investments.
Debt	$ 100,000				$ 100,000	$ 100,000		$ 100,000
Borrowings on unsecured term loans				$ 100,000
Extension Option (in years)				1
2024 Unsecured Term Loan \| Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative, Fixed Interest Rate \| Rate	3.6775%				3.6775%
2024 Unsecured Term Loan and 2023 Unsecured Term Loan
Line of Credit Facility [Line Items]
Leverage ratio				60.00%
Leverage ratio - maximum				65.00%
Secured debt leverage ratio - maximum				55.00%
Unsecured debt leverage ratio				60.00%
Unsecured debt leverage ratio - maximum				65.00%
Fixed charge coverage - maximum				1.40
Fixed charge coverage - minimum				1.00
Commercial Paper
Line of Credit Facility [Line Items]
Commercial Paper, Maximum Borrowing Capacity			$ 750,000							$ 500,000
Base Rate [Member] \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage \| Rate				0.00%
Secured Overnight Financing Rate (SOFR) \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate				1.10%
Fed Funds Effective Rate Overnight Index Swap Rate \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate				0.50%
Daily Simple Secured Overnight Financing Rate (SOFR) \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate	1.05%
Maximum [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage			0.30%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			1.40%
Maximum [Member] \| 2024 Unsecured Term Loan and 2023 Unsecured Term Loan
Line of Credit Facility [Line Items]
Unsecured debt interest coverage ratio				1.75
Maximum [Member] \| Commercial Paper
Line of Credit Facility [Line Items]
Commercial Paper, Maximum Borrowing Capacity			$ 750,000
Maximum [Member] \| Base Rate [Member] \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate				0.60%
Maximum [Member] \| Daily Simple Secured Overnight Financing Rate (SOFR) \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate				1.60%
Minimum [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage			0.10%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.70%
Minimum [Member] \| 2024 Unsecured Term Loan and 2023 Unsecured Term Loan
Line of Credit Facility [Line Items]
Unsecured debt interest coverage ratio				1.00
Minimum [Member] \| Base Rate [Member] \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate				0.00%
Minimum [Member] \| Daily Simple Secured Overnight Financing Rate (SOFR) \| 2024 Unsecured Term Loan
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate				0.75%
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity			$ 2,950,000
Line of Credit Facility, Maximum Borrowing Capacity			$ 3,500,000
Loss from early extinguishment of debt					$ 300
Debt Instrument, Covenant Description			Among other covenants, the 2025 Credit Facility requires that BPLP maintain: (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%
Interest Coverage - Minimum			1.40
Unsecured debt leverage ratio			60.00%
Unsecured debt leverage ratio - maximum			65.00%
Unsecured debt interest coverage ratio			1.75
Line of Credit Facility, Covenant Compliance					At December 31, 2025, BPLP was in compliance with each of these financial restrictions and requirements.
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity			$ 2,250,000
Line of Credit Facility, Maximum Borrowing Capacity									$ 2,000,000
Debt Instrument, Maturity Date			Mar. 29, 2030
Line of Credit Facility, Commitment Fee Percentage	0.20%
Debt Instrument, Basis Spread on Variable Rate	0.85%
Debt Instrument, Alternate Basis Spread on Variable Rate	0.00%				0.00%
Long-term Line of Credit	$ 0				$ 0
Term Loan Facility
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.95%