BASIS OF PRESENTATION (Details)	Mar. 31, 2023 subsidiary office
Basis Of Presentation [Line Items]
Number of unconsolidated subsidiary | subsidiary	3
Number of majority-owned subsidiary | subsidiary	1
Number of banking offices	119
Pennsylvania
Basis Of Presentation [Line Items]
Number of banking offices	61
Delaware
Basis Of Presentation [Line Items]
Number of banking offices	39
New Jersey
Basis Of Presentation [Line Items]
Number of banking offices	17
Virginia
Basis Of Presentation [Line Items]
Number of banking offices	1
Nevada
Basis Of Presentation [Line Items]
Number of banking offices	1
WSFS Financial Corporation
Basis Of Presentation [Line Items]
Number of wholly-owned subsidiaries | subsidiary	2