Debt Instrument, Convertible, Exchange Premium Percentage

No definition available.

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- Definition

Proceeds From Convertible Debt, Net of Issuance and Hedging Costs

+ References

No definition available.

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- Definition

Amount of amortization expense attributable to debt issuance costs.

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- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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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

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Earliest date when the debt instrument can be converted into equity, in YYYY-MM-DD format.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

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

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

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

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Amount of interest expense classified as nonoperating.

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The cash outflow for derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

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Exchangeable Senior Notes (Details)		3 Months Ended	12 Months Ended
Exchangeable Senior Notes (Details)	Sep. 29, 2025 USD ($) $ / shares $ / Unit	Dec. 31, 2025 USD ($) $ / shares	Dec. 31, 2025 USD ($) $ / shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 24, 2025 $ / shares
Debt Instrument [Line Items]
Debt Conversion, Converted Instrument, Amount			$ 0	$ 100,000,000	$ 0
Closing price of common stock (in dollars per share) \| $ / shares		$ 67.48	$ 67.48
Capped call transactions premium			$ 35,000,000	0	0
Boston Properties Limited Partnership
Debt Instrument [Line Items]
Debt		$ 9,850,000,000	9,850,000,000
Debt Conversion, Converted Instrument, Amount			0	100,000,000	0
Capped call transactions premium			35,000,000	$ 0	$ 0
2.00% unsecured exchangeable senior notes \| Convertible Debt
Debt Instrument [Line Items]
Debt	$ 1,000,000,000.0
Debt Instrument, Interest Rate, Stated Percentage	2.00%
Debt Instrument, Maturity Date	Oct. 01, 2030
Proceeds From Convertible Debt, Net of Issuance and Hedging Costs	$ 975,100,000
Interest Expense, Nonoperating		5,100,000
Amortization of Debt Issuance Costs		1,300,000
Debt Instrument, Interest Rate, Effective Percentage	2.498%
Unamortized Debt Issuance Expense		$ 23,700,000	$ 23,700,000
Debt Instrument, Convertible, Earliest Date	Jul. 01, 2030
Debt Conversion, Converted Instrument, Amount	$ 1,000
Debt Instrument, Convertible, Conversion Price \| $ / shares	$ 92.44
Debt Instrument, Convertible, Exchange Premium Percentage	22.50%
Closing price of common stock (in dollars per share) \| $ / shares						$ 75.46
Debt Instrument, Redemption Price, Percentage	130.00%
2.00% unsecured exchangeable senior notes \| Convertible Debt \| Call Option
Debt Instrument [Line Items]
Derivative, Cap Price \| $ / Unit	105.64
Capped call transactions premium	$ 35,000,000.0
2.00% unsecured exchangeable senior notes \| Convertible Debt \| Per $1,000 principal amount
Debt Instrument [Line Items]
Debt Instrument, Convertible, Conversion Ratio	10.8180
2.00% unsecured exchangeable senior notes \| Convertible Debt \| Boston Properties Limited Partnership
Debt Instrument [Line Items]
Debt	$ 1,000,000,000.0
Debt Instrument, Interest Rate, Stated Percentage	2.00%