CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands		Total	Total Stockholders' Equity of WSFS	Common Stock	Capital in Excess of Par Value	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock	Non-controlling Interest
Beginning balance (in shares) at Dec. 31, 2020				57,575,783
Beginning balance at Dec. 31, 2020		$ 1,789,480	$ 1,791,726	$ 576	$ 1,053,022	$ 56,007	$ 977,414	$ (295,293)	$ (2,246)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		160,752	160,749				160,749		3
Other comprehensive (loss) income		(45,769)	(45,769)			(45,769)
Cash dividend		(11,879)	(11,879)				(11,879)
Issuance of common stock including proceeds from exercise of common stock options (in shares)				46,368
Issuance of common stock including proceeds from exercise of common stock options		176	176	$ 1	175
Stock-based compensation expense		2,262	2,262		2,262
Repurchases of common stock	[1]	(13,211)	(13,211)		(1,183)			(12,028)
Ending balance (in shares) at Jun. 30, 2021				57,622,151
Ending balance at Jun. 30, 2021		1,881,811	1,884,054	$ 577	1,054,276	10,238	1,126,284	(307,321)	(2,243)
Beginning balance (in shares) at Mar. 31, 2021				57,589,330
Beginning balance at Mar. 31, 2021		1,768,454	1,770,641	$ 576	1,054,291	(13,702)	1,036,797	(307,321)	(2,187)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		95,611	95,667				95,667		(56)
Other comprehensive (loss) income		23,940	23,940			23,940
Cash dividend		(6,180)	(6,180)				(6,180)
Issuance of common stock including proceeds from exercise of common stock options (in shares)				32,821
Issuance of common stock including proceeds from exercise of common stock options		61	61	$ 1	60
Stock-based compensation expense		1,107	1,107		1,107
Repurchases of common stock	[1]	(1,182)	(1,182)		(1,182)
Ending balance (in shares) at Jun. 30, 2021				57,622,151
Ending balance at Jun. 30, 2021		1,881,811	1,884,054	$ 577	1,054,276	10,238	1,126,284	(307,321)	(2,243)
Beginning balance (in shares) at Dec. 31, 2021				57,695,676
Beginning balance at Dec. 31, 2021		1,937,016	1,939,099	$ 577	1,058,997	(37,768)	1,224,614	(307,321)	(2,083)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		64,869	64,544				64,544		325
Other comprehensive (loss) income		(481,110)	(481,110)			(481,110)
Cash dividend		(16,966)	(16,966)				(16,966)
Contributions from noncontrolling shareholders		187							187
Issuance of common stock including proceeds from exercise of common stock options (in shares)				57,776
Issuance of common stock including proceeds from exercise of common stock options		432	432	$ 1	431
Issuance of common stock in acquisition of BMT (in shares)				18,116,848
Issuance of common stock in acquisition of BMT		908,016	908,016	$ 181	907,835
Noncontrolling interest assumed in acquisition		(913)							(913)
Stock-based compensation expense		3,061	3,061		3,061
Repurchases of common stock	[2]	(101,716)	(101,716)		(2,149)			(99,567)
Ending balance (in shares) at Jun. 30, 2022				75,870,300
Ending balance at Jun. 30, 2022		2,312,876	2,315,360	$ 759	1,968,175	(518,878)	1,272,192	(406,888)	(2,484)
Beginning balance (in shares) at Mar. 31, 2022				75,832,292
Beginning balance at Mar. 31, 2022		2,517,817	2,520,463	$ 758	1,967,972	(313,780)	1,219,882	(354,369)	(2,646)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		60,902	60,740				60,740		162
Other comprehensive (loss) income		(205,098)	(205,098)			(205,098)
Cash dividend		(8,430)	(8,430)				(8,430)
Issuance of common stock including proceeds from exercise of common stock options (in shares)				38,008
Issuance of common stock including proceeds from exercise of common stock options		3	3	$ 1	2
Stock-based compensation expense		1,728	1,728		1,728
Repurchases of common stock	[3]	(54,046)	(54,046)		(1,527)			(52,519)
Ending balance (in shares) at Jun. 30, 2022				75,870,300
Ending balance at Jun. 30, 2022		$ 2,312,876	$ 2,315,360	$ 759	$ 1,968,175	$ (518,878)	$ 1,272,192	$ (406,888)	$ (2,484)

[1] Repurchase of common stock includes 267,309 shares repurchased in connection with the Company's share repurchase program approved by the Board of Directors and 17,732 shares withheld to cover tax liabilities.

[2] Repurchase of common stock includes 2,124,587 shares repurchased in connection with the Company's share repurchase program approved by the Board of Directors, and 100,093 shares withheld to cover tax liabilities.

[3] Repurchase of common stock includes 1,185,602 shares repurchased in connection with the Company's share repurchase program approved by the Board of Directors, and 96,663 shares withheld to cover tax liabilities.