CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net income	$ 102,494	$ 105,025
Less: Net loss attributable to noncontrolling interest	(611)	0
Net income attributable to WSFS	103,105	105,025
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	23,970	9,864
Depreciation of premises and equipment, net	11,139	6,347
Amortization of fees and discounts, net	(32,308)	11,952
Amortization of intangible assets	8,348	2,223
Amortization of right of use lease asset	19,842
Decrease in operating lease liability	(9,999)
Income from mortgage banking activities, net	(8,090)	(4,938)
Gain on sale of securities, net	(78)	(21)
Loss on sale of other real estate owned and valuation adjustments, net	63	83
Stock-based compensation expense	1,994	1,857
Unrealized gain on equity investments	(26,175)	(18,595)
Deferred income tax expense	6,106	3,330
Decrease (increase) in accrued interest receivable	729	(1,926)
Decrease in other assets	8,582	3,171
Origination of loans held for sale	(325,103)	(265,674)
Proceeds from sales of loans held for sale	271,679	257,026
Increase in accrued interest payable	7,581	6,083
Increase (decrease) in other liabilities	17,938	(5,273)
Increase in value of bank owned life insurance	(1,590)	(311)
Increase in capitalized interest, net	(2,698)	(2,795)
Net cash provided by operating activities	75,035	107,428
Investing activities:
Repayments, maturities and calls of investment securities held to maturity	15,130	7,055
Sale of investment securities available for sale	602,467	7,012
Purchases of investment securities available for sale	(800,020)	(280,401)
Repayments of investment securities available for sale	170,646	82,501
Proceeds from bank-owned life insurance surrender	59,710	96,429
Net decrease (increase) in loans	125,511	(119,641)
Net cash from business combinations	(76,072)	0
Purchases of stock of Federal Home Loan Bank of Pittsburgh	(176,966)	(137,199)
Redemptions of stock of Federal Home Loan Bank of Pittsburgh	196,777	151,943
Sales of other real estate owned	1,866	2,323
Investment in premises and equipment	(10,701)	(4,910)
Sales of premises and equipment	71	201
Net cash provided by (used in) investing activities	260,563	(194,687)
Financing activities:
Net increase in demand and saving deposits	55,527	341,411
(Decrease) increase in time deposits	(81,783)	83,788
(Decrease) increase in brokered deposits	(161,892)	57,638
Receipts from FHLB advances	27,146,456	85,335,984
Repayments of FHLB advances	(27,109,246)	(85,707,520)
Receipts from federal funds purchased	21,475,000	18,821,100
Repayments of federal funds purchased	(21,632,975)	(18,849,100)
Dividends paid	(16,208)	(9,797)
Issuance of common stock and exercise of common stock options	7,340	9,776
Change in noncontrolling interest	(535)	0
Purchase of common stock	(57,740)	(8,515)
Net cash (used in) provided by financing activities	(376,056)	74,765
Decrease in cash and cash equivalents	(40,458)	(12,494)
Cash and cash equivalents at beginning of period	620,757	723,866
Cash and cash equivalents at end of period	580,299	711,372
Supplemental disclosure of cash flow information:
Interest	48,782	27,297
Income taxes	24,579	21,754
Non-cash information:
Loans transferred to other real estate owned	2,344	1,907
Loans transferred to portfolio from held-for-sale at fair value	19,278	7,261
Fair value of assets acquired, net of cash received	5,032,299	0
Fair value of liabilities assumed	5,108,371	0
Right of use asset	121,288	0
Lease liability	$ (132,346)	$ 0