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Schedule of Unsecured Senior Notes (Details) - USD ($)
$ in Thousands

Dec. 31, 2025

Dec. 31, 2024

Debt Instrument [Line Items]

Debt Issuance Costs, Net

$ 18,000

Senior Notes

9,806,100

$ 10,645,077

Boston Properties Limited Partnership

Debt Instrument [Line Items]

Debt

9,850,000

Debt Issuance Costs, Net

18,000

Senior Notes

9,806,100

$ 10,645,077

Boston Properties Limited Partnership | Senior Notes

Debt Instrument [Line Items]

Debt Instrument, Unamortized Discount

8,371

Debt Issuance Costs, Net

$ 35,529

Boston Properties Limited Partnership | Senior Notes | 3.766% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

^[1]

3.65%

Debt Instrument, Interest Rate, Effective Percentage

^[1],[2]

3.766%

Debt

^[1]

$ 1,000,000

Long-term Debt, Maturity Date

^[1],[3]

Feb. 01, 2026

Boston Properties Limited Partnership | Senior Notes | 3.495% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

2.75%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

3.495%

Debt

$ 1,000,000

Long-term Debt, Maturity Date

^[3]

Oct. 01, 2026

Boston Properties Limited Partnership | Senior Notes | 6.924% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

6.75%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

6.924%

Debt

$ 750,000

Long-term Debt, Maturity Date

^[3]

Dec. 01, 2027

Boston Properties Limited Partnership | Senior Notes | 4.628% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

4.50%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

4.628%

Debt

$ 1,000,000

Long-term Debt, Maturity Date

^[3]

Dec. 01, 2028

Boston Properties Limited Partnership | Senior Notes | 3.505% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

3.40%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

3.505%

Debt

$ 850,000

Long-term Debt, Maturity Date

^[3]

Jun. 21, 2029

Boston Properties Limited Partnership | Senior Notes | 2.984% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

2.90%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

2.984%

Debt

$ 700,000

Long-term Debt, Maturity Date

^[3]

Mar. 15, 2030

Boston Properties Limited Partnership | Senior Notes | 3.343 % unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

3.25%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

3.343%

Debt

$ 1,250,000

Long-term Debt, Maturity Date

^[3]

Jan. 30, 2031

Boston Properties Limited Partnership | Senior Notes | 2.671% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

2.55%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

2.671%

Debt

$ 850,000

Long-term Debt, Maturity Date

^[3]

Apr. 01, 2032

Boston Properties Limited Partnership | Senior Notes | 2.524% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

2.45%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

2.524%

Debt

$ 850,000

Long-term Debt, Maturity Date

^[3]

Oct. 01, 2033

Boston Properties Limited Partnership | Senior Notes | 6.619% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

6.50%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

6.619%

Debt

$ 750,000

Long-term Debt, Maturity Date

^[3]

Jan. 15, 2034

Boston Properties Limited Partnership | Senior Notes | 5.842% unsecured senior notes

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

5.75%

Debt Instrument, Interest Rate, Effective Percentage

^[2]

5.842%

Debt

$ 850,000

Long-term Debt, Maturity Date

^[3]

Jan. 15, 2035

[1]	See Note 17.
[2]	Yield on issuance date including the effects of discounts on the notes, settlements of interest rate contracts and the amortization of financing costs.
[3]	No principal amounts are due prior to maturity.

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