Goodwill and Intangible Assets - Schedule of Allocation of Goodwill to Our Reportable Operating Segments for Purposes of Goodwill Impairment Testing (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Beginning Balance	$ 28,146	$ 28,146
Goodwill from business combinations	4,089
Changes in goodwill
Ending Balance	32,235	28,146
WSFS Bank [Member]
Goodwill [Line Items]
Beginning Balance	23,012	23,012
Goodwill from business combinations	4,089
Changes in goodwill
Ending Balance	27,101	23,012
Cash Connect [Member]
Goodwill [Line Items]
Beginning Balance
Goodwill from business combinations
Changes in goodwill
Ending Balance
Trust & Wealth Management [Member]
Goodwill [Line Items]
Beginning Balance	5,134	5,134
Goodwill from business combinations
Changes in goodwill
Ending Balance	$ 5,134	$ 5,134