CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest income:
Interest and fees on loans and leases	$ 845,271	$ 582,754	$ 393,248
Interest on mortgage-backed securities	107,555	106,606	55,802
Interest and dividends on investment securities:
Taxable	2,803	2,812	2,805
Tax-exempt	5,980	4,087	2,719
Other interest income	14,913	7,556	1,795
Total interest income	976,522	703,815	456,369
Interest expense:
Interest on deposits	209,820	28,181	14,923
Interest on Federal Home Loan Bank advances	5,348	538	5
Interest on senior and subordinated debt	9,815	8,246	6,497
Interest on trust preferred borrowings	6,736	3,482	1,274
Interest on federal funds purchased	1,673	443	0
Interest on other borrowings	18,027	35	21
Total interest expense	251,419	40,925	22,720
Net interest income	725,103	662,890	433,649
Provision for (recovery of) credit losses	88,071	48,089	(117,087)
Net interest income after provision for (recovery of) credit losses	637,032	614,801	550,736
Noninterest income:
Loan and lease fee income	5,718	6,275	7,533
Security gains, net	0	0	331
Unrealized gains on equity investments, net	329	5,980	5,141
Realized gain (loss) on sale of equity investment, net	9,493	0	(706)
Bank owned life insurance income	4,642	1,804	1,251
Total non interest income	289,871	260,134	185,480
Noninterest expense:
Salaries, benefits and other compensation	289,193	283,905	214,167
Occupancy expense	42,184	40,885	32,802
Equipment expense	42,242	40,994	29,040
Professional fees	21,200	18,497	15,614
Data processing and operations expenses	19,054	20,876	14,074
Marketing expense	7,914	7,230	5,413
FDIC expenses	15,887	6,098	4,081
Loan workout and other credit costs	852	702	663
Corporate development expense	3,931	42,749	11,676
Restructuring expense	(230)	22,473	1,346
Recovery of legal settlement	0	0	(15,000)
Loss on early extinguishment of debt	0	0	1,087
Other operating expense	119,406	89,917	63,553
Total non interest expenses	561,633	574,326	378,516
Income before taxes	365,270	300,609	357,700
Income tax provision	96,245	77,961	86,095
Net income	269,025	222,648	271,605
Less: Net (loss) income attributable to noncontrolling interest	(131)	273	163
Net income attributable to WSFS	$ 269,156	$ 222,375	$ 271,442
Basic earnings per share (in dollars per share)	$ 4.40	$ 3.50	$ 5.71
Diluted earnings per share (in dollars per share)	$ 4.40	$ 3.49	$ 5.69
Credit/debit card and ATM income
Noninterest income:
Noninterest income	$ 59,718	$ 40,088	$ 29,479
Investment management and fiduciary revenue
Noninterest income:
Noninterest income	131,050	121,608	62,348
Deposit service charges
Noninterest income:
Noninterest income	25,393	24,484	22,090
Mortgage banking activities, net
Noninterest income:
Noninterest income	4,799	7,271	23,216
Other income
Noninterest income:
Noninterest income	$ 48,729	$ 52,624	$ 34,797