PARENT COMPANY FINANCIAL INFORMATION - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income:
Realized gain (loss) on sale of equity investment	$ 9,493	$ 0	$ (706)
Unrealized gains on equity investments, net	0	0	331
Other noninterest income	289,871	260,134	185,480
Expense:
Interest expense	251,419	40,925	22,720
Other operating expense	(976,522)	(703,815)	(456,369)
Net expenses	(725,103)	(662,890)	(433,649)
Income before taxes	365,270	300,609	357,700
Income tax expense (benefit)	96,245	77,961	86,095
Net income attributable to WSFS	269,156	222,375	271,442
WSFS Financial Corporation
Income:
Interest income	817	374	357
Realized gain (loss) on sale of equity investment	9,493	0	(706)
Unrealized gains on equity investments, net	2,489	5,379	5,389
Other noninterest income	98,067	251,382	4,759
Total revenue	110,866	257,135	9,799
Expense:
Interest expense	16,610	11,763	7,771
Other operating expense	6,965	11,489	7,508
Net expenses	23,575	23,252	15,279
Income (loss) before equity in undistributed income of subsidiaries	87,291	233,883	(5,480)
Equity in undistributed income (loss) of subsidiaries	182,396	(12,672)	276,208
Income before taxes	269,687	221,211	270,728
Income tax expense (benefit)	531	(1,164)	(714)
Net income attributable to WSFS	$ 269,156	$ 222,375	$ 271,442