Indebtedness (Details)						9 Months Ended
	Sep. 27, 2024 USD ($)	Jun. 10, 2024 USD ($)	May 19, 2023 USD ($)	Dec. 06, 2022 USD ($)	Aug. 23, 2022 USD ($) extension_option	Sep. 30, 2024 USD ($)	Jun. 21, 2024 USD ($)	Jun. 14, 2024 USD ($)	Dec. 31, 2023 USD ($)	Aug. 29, 2023 USD ($)	Jun. 29, 2023 USD ($)
Line of Credit | Amended And Restated Credit Agreement
Indebtedness
Aggregate capacity under the credit facility					$ 550,000,000.0
Accordion feature maximum borrowing capacity					1,000,000,000.0
Line of Credit | M&T Term Loan Agreement
Indebtedness
Aggregate capacity under the credit facility				$ 100,000,000
Accordion feature maximum borrowing capacity				$ 200,000,000
Line of Credit | TD Term Loan Facility
Indebtedness
Aggregate capacity under the credit facility			$ 75,000,000
Accordion feature maximum borrowing capacity			$ 150,000,000
Line of Credit | Revolving credit facility | Amended And Restated Credit Agreement
Indebtedness
Aggregate capacity under the credit facility					$ 250,000,000.0					$ 355,000,000.0
Number of extension options | extension_option					2
Duration of extension option					6 months
Extension fee percentage					0.075%
Increased the capacity of the revolving credit facility								$ 50,000,000		105,000,000
Credit spread adjustment					0.10%
Line of credit, amount outstanding						$ 164,000,000.0			$ 267,000,000.0
Interest rate on credit facility as of end of period						6.42%
Interest rate on credit facility as of end of period after giving effect to interest rate swaps						4.73%
Line of Credit | Revolving credit facility | M&T Term Loan Agreement
Indebtedness
Duration of extension option				1 year
Extension fee percentage				0.075%
Increased the capacity of the revolving credit facility							$ 35,000,000
Credit spread adjustment				0.10%
Line of credit, amount outstanding						$ 135,000,000	$ 135,000,000		100,000,000
Interest rate on credit facility as of end of period						4.95%
Interest rate on credit facility as of end of period after giving effect to interest rate swaps						6.37%
Line of Credit | Revolving credit facility | TD Term Loan Facility
Indebtedness
Aggregate capacity under the credit facility											$ 95,000,000
Duration of extension option			1 year
Extension fee percentage			0.15%
Credit spread adjustment			0.10%
Line of credit, amount outstanding						$ 95,000,000			95,000,000
Interest rate on credit facility as of end of period						6.47%
Interest rate on credit facility as of end of period after giving effect to interest rate swaps						4.85%
Line of Credit | Revolving credit facility | Chronicle Mill
Indebtedness
Duration of extension option						1 year
Line of Credit | Revolving credit facility | Secured Overnight Financing Rate (SOFR) | M&T Term Loan Agreement
Indebtedness
Stated interest rate, basis spread on variable rate				1.00%
Line of Credit | Revolving credit facility | Secured Overnight Financing Rate (SOFR) | TD Term Loan Facility
Indebtedness
Stated interest rate, basis spread on variable rate			1.00%
Line of Credit | Revolving credit facility | Federal Funds Rate | M&T Term Loan Agreement
Indebtedness
Stated interest rate, basis spread on variable rate				0.50%
Line of Credit | Revolving credit facility | Federal Funds Rate | TD Term Loan Facility
Indebtedness
Stated interest rate, basis spread on variable rate			0.50%
Line of Credit | Revolving credit facility | Base Rate | TD Term Loan Facility
Indebtedness
Stated interest rate, basis spread on variable rate			1.00%
Line of Credit | Revolving credit facility | Minimum | Amended And Restated Credit Agreement
Indebtedness
Basis points on unused commitment fee					0.15%
Line of Credit | Revolving credit facility | Minimum | Secured Overnight Financing Rate (SOFR) | Amended And Restated Credit Agreement
Indebtedness
Stated interest rate, basis spread on variable rate					1.30%
Line of Credit | Revolving credit facility | Maximum | Amended And Restated Credit Agreement
Indebtedness
Basis points on unused commitment fee					0.25%
Line of Credit | Revolving credit facility | Maximum | Secured Overnight Financing Rate (SOFR) | Amended And Restated Credit Agreement
Indebtedness
Stated interest rate, basis spread on variable rate					1.85%
Line of Credit | Term Loan Facility | Amended And Restated Credit Agreement
Indebtedness
Aggregate capacity under the credit facility					$ 300,000,000.0			$ 350,000,000		$ 655,000,000.0
Credit spread adjustment					0.10%
Line of credit, amount outstanding						$ 350,000,000.0			$ 300,000,000
Interest rate on credit facility as of end of period						6.37%
Interest rate on credit facility as of end of period after giving effect to interest rate swaps						4.75%
Line of Credit | Term Loan Facility | Minimum | Secured Overnight Financing Rate (SOFR) | Amended And Restated Credit Agreement
Indebtedness
Stated interest rate, basis spread on variable rate					1.25%
Line of Credit | Term Loan Facility | Maximum | Secured Overnight Financing Rate (SOFR) | Amended And Restated Credit Agreement
Indebtedness
Stated interest rate, basis spread on variable rate					1.80%
Construction loans
Indebtedness
Borrowings under construction loans						$ 25,700,000
Secured debt | Red Mill Commons
Indebtedness
Extinguishment of debt		$ 1,760,000
Secured debt | Chronicle Mill Mixed Use Multifamily
Indebtedness
Extinguishment of debt	$ 35,000,000
Secured debt | Premier Mixed Use Multifamily
Indebtedness
Extinguishment of debt	23,700,000
Secured debt | Market at Mill Creek Retail Property
Indebtedness
Extinguishment of debt	$ 10,900,000