CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest income:
Interest and fees on loans and leases	$ 582,754	$ 393,248	$ 460,394
Interest on mortgage-backed securities	106,606	55,802	48,377
Interest and dividends on investment securities:
Taxable	2,812	2,805	1,191
Tax-exempt	4,087	2,719	3,428
Other interest income	7,556	1,795	1,015
Total interest income	703,815	456,369	514,405
Interest expense:
Interest on deposits	28,181	14,923	39,262
Interest on Federal Home Loan Bank advances	538	5	1,950
Interest on senior and subordinated debt	8,246	6,497	4,998
Interest on trust preferred borrowings	3,482	1,274	1,751
Interest on federal funds purchased	443	0	471
Interest on other borrowings	35	21	18
Total interest expense	40,925	22,720	48,450
Net interest income	662,890	433,649	465,955
Provision for (recovery of) credit losses	48,089	(117,087)	153,180
Net interest income after provision for (recovery of) credit losses	614,801	550,736	312,775
Noninterest income:
Loan and lease fee income	6,275	7,533	4,518
Security gains, net	0	331	9,076
Unrealized gains on equity investments, net	5,980	5,141	761
Realized (loss) gain on sale of equity investment, net	0	(706)	22,052
Bank owned life insurance income	1,804	1,251	1,280
Total non interest income	260,134	185,480	201,025
Noninterest expense:
Salaries, benefits and other compensation	283,905	214,167	194,317
Occupancy expense	40,885	32,802	32,105
Equipment expense	40,994	29,040	23,793
Professional fees	18,497	15,614	18,757
Data processing and operations expenses	20,876	14,074	12,600
Marketing expense	7,230	5,413	5,677
FDIC expenses	6,098	4,081	2,148
Loan workout and other credit costs	702	663	6,899
Corporate development expense	42,749	11,676	4,328
Restructuring expense	22,473	1,346	510
Recovery of legal settlement	0	(15,000)	0
Loss on early extinguishment of debt	0	1,087	2,280
Other operating expense	89,917	63,553	65,430
Total non interest expenses	574,326	378,516	368,844
Income before taxes	300,609	357,700	144,956
Income tax provision	77,961	86,095	31,636
Net income	222,648	271,605	113,320
Less: Net income (loss) attributable to noncontrolling interest	273	163	(1,454)
Net income attributable to WSFS	$ 222,375	$ 271,442	$ 114,774
Basic earnings per share (in dollars per share)	$ 3.50	$ 5.71	$ 2.27
Diluted earnings per share (in dollars per share)	$ 3.49	$ 5.69	$ 2.27
Credit/debit card and ATM income
Noninterest income:
Noninterest income	$ 40,088	$ 29,479	$ 35,014
Investment management and fiduciary revenue
Noninterest income:
Noninterest income	121,608	62,348	48,979
Deposit service charges
Noninterest income:
Noninterest income	24,484	22,090	19,999
Mortgage banking activities, net
Noninterest income:
Noninterest income	7,271	23,216	30,201
Other income
Noninterest income:
Noninterest income	$ 52,624	$ 34,797	$ 29,145