Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
OPERATING ACTIVITIES
Net income	$ 58,016	$ 57,731
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	83,404	78,637
Gain on sale of real estate	0	(1,702)
Income from partnerships	(32)	(516)
Straight-line rent	(5,207)	(2,478)
Share-based compensation expense	4,160	4,097
Other, net	(1,001)	(1,277)
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Increase in accounts receivable, net	(500)	(466)
Decrease in prepaid expenses and other assets	3,624	3,563
Increase in accounts payable and accrued expenses	7,194	1,941
(Decrease) increase in security deposits and other liabilities	(8,498)	3,477
Net cash provided by operating activities	141,160	143,007
INVESTING ACTIVITIES
Acquisition of real estate	0	(35,340)
Capital expenditures - development and redevelopment	(35,993)	(50,780)
Capital expenditures - other	(27,754)	(25,737)
Proceeds from sale of real estate	0	12,626
Distribution from partnerships in excess of earnings	1,454	2,174
Leasing costs	(4,649)	(3,754)
Net cash used in investing activities	(66,942)	(100,811)
FINANCING ACTIVITIES
Net borrowings under revolving credit facility	12,500	60,000
Issuance of senior notes, net of costs	471,576	0
Repayment of senior notes	(600,000)	0
Costs to extend and issue notes and mortgages payable	(902)	0
Repayment of mortgages, finance leases, and notes payable	(819)	(819)
Purchase of capped calls	(19,448)	0
Issuance of common shares, net of costs	6,312	6,245
Dividends paid to common and preferred shareholders	(91,883)	(89,431)
Shares withheld for employee taxes	(4,614)	(4,645)
Contributions from noncontrolling interests	725	0
Distributions to and redemptions of redeemable noncontrolling interests	(2,848)	(2,616)
Net cash used in financing activities	(229,401)	(31,266)
(Decrease) increase in cash, cash equivalents and restricted cash	(155,183)	10,930
Cash, cash equivalents, and restricted cash at beginning of year	260,004	96,348
Cash, cash equivalents, and restricted cash at end of period	104,821	107,278
Federal Realty OP LP
OPERATING ACTIVITIES
Net income	58,016	57,731
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	83,404	78,637
Gain on sale of real estate	0	(1,702)
Income from partnerships	(32)	(516)
Straight-line rent	(5,207)	(2,478)
Share-based compensation expense	4,160	4,097
Other, net	(1,001)	(1,277)
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Increase in accounts receivable, net	(500)	(466)
Decrease in prepaid expenses and other assets	3,624	3,563
Increase in accounts payable and accrued expenses	7,194	1,941
(Decrease) increase in security deposits and other liabilities	(8,498)	3,477
Net cash provided by operating activities	141,160	143,007
INVESTING ACTIVITIES
Acquisition of real estate	0	(35,340)
Capital expenditures - development and redevelopment	(35,993)	(50,780)
Capital expenditures - other	(27,754)	(25,737)
Proceeds from sale of real estate	0	12,626
Distribution from partnerships in excess of earnings	1,454	2,174
Leasing costs	(4,649)	(3,754)
Net cash used in investing activities	(66,942)	(100,811)
FINANCING ACTIVITIES
Net borrowings under revolving credit facility	12,500	60,000
Issuance of senior notes, net of costs	471,576	0
Repayment of senior notes	(600,000)	0
Costs to extend and issue notes and mortgages payable	(902)	0
Repayment of mortgages, finance leases, and notes payable	(819)	(819)
Purchase of capped calls	(19,448)	0
Issuance of common units, net of costs	6,312	6,245
Dividends paid to common and preferred unit holders	(91,883)	(89,431)
Shares withheld for employee taxes	(4,614)	(4,645)
Contributions from noncontrolling interests	725	0
Distributions to and redemptions of redeemable noncontrolling interests	(2,848)	(2,616)
Net cash used in financing activities	(229,401)	(31,266)
(Decrease) increase in cash, cash equivalents and restricted cash	(155,183)	10,930
Cash, cash equivalents, and restricted cash at beginning of year	260,004	96,348
Cash, cash equivalents, and restricted cash at end of period	$ 104,821	$ 107,278