Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
OPERATING ACTIVITIES
Net income	$ 66,578	$ 58,016
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	86,946	83,404
Gain on sale of real estate	(1,171)	0
Income from partnerships	(177)	(32)
Straight-line rent	(7,463)	(5,207)
Share-based compensation expense	3,881	4,160
Other, net	(368)	(1,001)
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease (increase) in accounts receivable, net	16,799	(500)
Decrease in prepaid expense and other assets	(4,422)	(3,624)
Increase in accounts payable and accrued expenses	7,185	7,194
Increase (decrease) in security deposits and other liabilities	2,412	(8,498)
Net cash provided by operating activities	179,044	141,160
INVESTING ACTIVITIES
Acquisition of real estate	(120,413)	0
Capital expenditures - development and redevelopment	(31,222)	(35,993)
Capital expenditures - other	(27,807)	(27,754)
Proceeds from sale of real estate	3,860	0
Distribution from partnerships in excess of earnings	642	1,454
Leasing costs	(6,826)	(4,649)
Net cash used in investing activities	(181,766)	(66,942)
FINANCING ACTIVITIES
Net borrowings under revolving credit facility	44,550	12,500
Issuance of senior notes, net of costs	0	471,576
Repayment of senior notes	0	(600,000)
Costs to extend and issue notes and mortgages payable	(4,814)	(902)
Repayment of mortgages, finance leases and notes payable	(2,005)	(819)
Purchase of capped calls	0	(19,448)
Issuance of common shares, net of costs	54,542	6,312
Dividends paid to common and preferred shareholders	(95,964)	(91,883)
Shares withheld for employee taxes	(4,607)	(4,614)
Contributions from noncontrolling interests	1,413	725
Distributions to and redemptions of noncontrolling interests	(3,133)	(2,848)
Net cash used in financing activities	(10,018)	(229,401)
Decrease in cash, cash equivalents and restricted cash	(12,740)	(155,183)
Cash, cash equivalents, and restricted cash at beginning of year	135,443	260,004
Cash, cash equivalents, and restricted cash at end of period	122,703	104,821
Federal Realty OP LP
OPERATING ACTIVITIES
Net income	66,578	58,016
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	86,946	83,404
Gain on sale of real estate	(1,171)	0
Income from partnerships	(177)	(32)
Straight-line rent	(7,463)	(5,207)
Share-based compensation expense	3,881	4,160
Other, net	(368)	(1,001)
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease (increase) in accounts receivable, net	16,799	(500)
Decrease in prepaid expense and other assets	(4,422)	(3,624)
Increase in accounts payable and accrued expenses	7,185	7,194
Increase (decrease) in security deposits and other liabilities	2,412	(8,498)
Net cash provided by operating activities	179,044	141,160
INVESTING ACTIVITIES
Acquisition of real estate	(120,413)	0
Capital expenditures - development and redevelopment	(31,222)	(35,993)
Capital expenditures - other	(27,807)	(27,754)
Proceeds from sale of real estate	3,860	0
Distribution from partnerships in excess of earnings	642	1,454
Leasing costs	(6,826)	(4,649)
Net cash used in investing activities	(181,766)	(66,942)
FINANCING ACTIVITIES
Net borrowings under revolving credit facility	44,550	12,500
Issuance of senior notes, net of costs	0	471,576
Repayment of senior notes	0	(600,000)
Costs to extend and issue notes and mortgages payable	(4,814)	(902)
Repayment of mortgages, finance leases and notes payable	(2,005)	(819)
Purchase of capped calls	0	(19,448)
Issuance of common units, net of costs	54,542	6,312
Dividends paid to common and preferred unit holders	(95,964)	(91,883)
Shares withheld for employee taxes	(4,607)	(4,614)
Contributions from noncontrolling interests	1,413	725
Distributions to and redemptions of noncontrolling interests	(3,133)	(2,848)
Net cash used in financing activities	(10,018)	(229,401)
Decrease in cash, cash equivalents and restricted cash	(12,740)	(155,183)
Cash, cash equivalents, and restricted cash at beginning of year	135,443	260,004
Cash, cash equivalents, and restricted cash at end of period	$ 122,703	$ 104,821