Organization, Formation and Structure (Details)	6 Months Ended
	Jun. 30, 2022 subsidiary store property
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Percentage of taxable income distribution of shareholders	90.00%
Number of subsidiaries | subsidiary	2
Number of shopping centers | store	33
Saul Holdings Limited Partnership
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Percentage of ownership in operating partnership (as a percent)	72.00%
Giant Food
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of shopping centers | store	11
Giant Food | Revenue | Customer Concentration Risk
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Percentage of total revenue (as a percent)	5.20%
No Individual Tenant | Revenue | Customer Concentration Risk
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Percentage of total revenue (as a percent)	2.50%
Shopping Centers
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of real estate properties	50
Mixed-Use Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of real estate properties	7
Non-operating Development Properties
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of real estate properties	4