CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Total Stockholders' Equity of WSFS	Common Stock	Capital in Excess of Par Value	Accumulated Other Comprehensive Loss	Retained Earnings	Treasury Stock	Non-controlling Interest
Beginning balance (in shares) at Dec. 31, 2022				75,921,997
Beginning balance at Dec. 31, 2022		$ 2,201,886	$ 2,205,113	$ 759	$ 1,974,210	$ (675,844)	$ 1,411,243	$ (505,255)	$ (3,227)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		205,520	205,248				205,248		272
Other comprehensive (loss) income		(104,867)	(104,867)			(104,867)
Cash dividend		(27,633)	(27,633)				(27,633)
Distributions to noncontrolling shareholders		(4,462)							(4,462)
Issuance of common stock including proceeds from exercise of common stock options (in shares)				121,905
Issuance of common stock including proceeds from exercise of common stock options		2,420	2,420	$ 2	2,418
Stock-based compensation expense		7,211	7,211		7,211
Repurchases of common shares	[1]	(44,697)	(44,697)		(2,365)			(42,332)
Ending balance (in shares) at Sep. 30, 2023				76,043,902
Ending balance at Sep. 30, 2023		2,235,378	2,242,795	$ 761	1,981,474	(780,711)	1,588,858	(547,587)	(7,417)
Beginning balance (in shares) at Jun. 30, 2023				76,021,963
Beginning balance at Jun. 30, 2023		2,307,384	2,314,659	$ 760	1,977,945	(656,059)	1,523,849	(531,836)	(7,275)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		74,263	74,166				74,166		97
Other comprehensive (loss) income		(124,652)	(124,652)			(124,652)
Cash dividend		(9,157)	(9,157)				(9,157)
Distributions to noncontrolling shareholders		(239)							(239)
Issuance of common stock including proceeds from exercise of common stock options (in shares)				21,939
Issuance of common stock including proceeds from exercise of common stock options		2,058	2,058	$ 1	2,057
Stock-based compensation expense		1,472	1,472		1,472
Repurchases of common shares	[2]	(15,751)	(15,751)		0			(15,751)
Ending balance (in shares) at Sep. 30, 2023				76,043,902
Ending balance at Sep. 30, 2023		2,235,378	2,242,795	$ 761	1,981,474	(780,711)	1,588,858	(547,587)	(7,417)
Beginning balance (in shares) at Dec. 31, 2023				76,095,094
Beginning balance at Dec. 31, 2023		2,469,815	2,477,636	$ 761	1,984,746	(593,991)	1,643,657	(557,537)	(7,821)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		199,340	199,469				199,469		(129)
Other comprehensive (loss) income		93,974	93,974			93,974
Cash dividend		(26,983)	(26,983)				(26,983)
Distributions to noncontrolling shareholders		(3,299)							(3,299)
Issuance of common stock including proceeds from exercise of common stock options (in shares)	[3]			151,677
Issuance of common stock including proceeds from exercise of common stock options	[3]	337	337	$ 1	336
Stock-based compensation expense		8,990	8,990		8,990
Repurchases of common shares	[4]	(75,159)	(75,159)					(75,159)
Ending balance (in shares) at Sep. 30, 2024				76,246,771
Ending balance at Sep. 30, 2024		2,667,015	2,678,264	$ 762	1,994,072	(500,017)	1,816,143	(632,696)	(11,249)
Beginning balance (in shares) at Jun. 30, 2024				76,208,354
Beginning balance at Jun. 30, 2024		2,478,357	2,489,580	$ 762	1,989,289	(642,878)	1,760,598	(618,191)	(11,223)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		64,409	64,435				64,435		(26)
Other comprehensive (loss) income		142,861	142,861			142,861
Cash dividend		(8,890)	(8,890)				(8,890)
Issuance of common stock including proceeds from exercise of common stock options (in shares)	[5]			38,417
Issuance of common stock including proceeds from exercise of common stock options	[5]	1,436	1,436		1,436
Stock-based compensation expense		2,813	2,813		2,813
Repurchases of common shares	[6]	(13,971)	(13,971)		534			(14,505)
Ending balance (in shares) at Sep. 30, 2024				76,246,771
Ending balance at Sep. 30, 2024		$ 2,667,015	$ 2,678,264	$ 762	$ 1,994,072	$ (500,017)	$ 1,816,143	$ (632,696)	$ (11,249)

[1] Repurchase of common stock includes 1,006,178 shares repurchased in connection with the Company's share repurchase program approved by the Board of Directors, and 45,489 shares withheld to cover tax liabilities.

[2] Repurchase of common stock includes 386,900 shares repurchased in connection with the Company's share repurchase program approved by the Board of Directors.

[3] Issuance of common stock includes 51,714 shares withheld to cover tax liabilities.

[4] Repurchase of common stock includes 1,656,501 shares repurchased in connection with the Company's share repurchase program approved by the Board of Directors.

[5] Issuance of common stock includes 1,610 shares withheld to cover tax liabilities.

[6] Repurchase of common stock includes 266,672 shares repurchased in connection with the Company's share repurchase program approved by the Board of Directors.