CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 72,221	$ 69,208	$ 138,088	$ 134,931
Less: Net loss attributable to noncontrolling interest	(105)	(65)	(134)	(103)
Net income attributable to WSFS	72,326	69,273	138,222	135,034
Net change in unrealized gains (losses) on investment securities available-for-sale
Net unrealized gains (losses) arising during the period, net of tax expense (benefit) of $7,165, $(2,874), $29,282, and $(15,507), respectively	22,688	(9,100)	92,725	(49,107)
Net change in securities held-to-maturity
Amortization of net unrealized losses on available-for-sale securities reclassified to held-to-maturity, net of tax expense of $1,032, $1,203, $2,038, and $2,361, respectively	3,267	3,808	6,455	7,477
Net change in unfunded pension liability
Change in unfunded pension liability related to unrealized gain and prior service cost, net of tax benefit of $19 and $16, $39, and $56, respectively	(61)	(52)	(122)	(176)
Net change in cash flow hedge
Net unrealized gain (loss) arising during the period, net of tax expense (benefit) of $455, $(185), $1,363, and $(2,217), respectively	1,440	(587)	4,315	(7,020)
Net change in equity method investments
Net change in other comprehensive income of equity method investments, net of tax benefit of $5, $13, $206, and $19, respectively	(16)	(40)	(652)	(61)
Total other comprehensive income (loss)	27,318	(5,971)	102,721	(48,887)
Total comprehensive income	$ 99,644	$ 63,302	$ 240,943	$ 86,147