Antidilutive Securities Excluded from Computation of Net Income, Per Outstanding Unit, units

No definition available.

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- Definition

Incremental common units attributable to participating nonvested shares

+ References

No definition available.

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- Definition

Preferred unit distribution rate percentage

+ References

No definition available.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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- Definition

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

+ References

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- Definition

This element represents nonvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid). Basic and dilutive earnings per share are generally disclosed for such shares using the two-class method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 68B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482689/260-10-45-68B

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

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Earnings Per Share And Unit (Details) - shares	3 Months Ended		6 Months Ended		12 Months Ended
Earnings Per Share And Unit (Details) - shares	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Jan. 11, 2024
Weighted average unvested shares outstanding	300,000	300,000	300,000	300,000
Federal Realty OP LP
Weighted average unvested units outstanding	300,000	300,000	300,000	300,000
3.25% notes \| Exchangeable senior notes
Interest rate	3.25%	3.25%	3.25%	3.25%		3.25%
3.25% notes \| Exchangeable senior notes \| Federal Realty OP LP
Interest rate	3.25%	3.25%	3.25%	3.25%
5.417% Series 1 Cumulative Convertible Preferred shares
Preferred shares, percentage	5.417%		5.417%	5.417%	5.417%
5.417% Series 1 Cumulative Convertible Preferred Units
Preferred units, percentage	5.417%		5.417%	5.417%
Stock Options
Anti-dilutive issuable shares		3,019	1,190	1,190
Stock Options \| Federal Realty OP LP
Anti-dilutive issuable units		3,019	1,190	1,190
Forward Sales Contracts
Anti-dilutive issuable shares				500,000
Forward Sales Contracts \| Federal Realty OP LP
Anti-dilutive issuable units				500,000