WSFS Financial (WSFS) 10-K 29 Feb 16 2015 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Feb. 19, 2016	Jun. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Trading Symbol	WSFS
Entity Registrant Name	WSFS FINANCIAL CORP
Entity Central Index Key	828,944
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		29,686,400
Entity Public Float			$ 749,298,186

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest Income
Interest and fees on loans	$ 157,220	$ 137,048	$ 129,138
Interest on mortgage-backed securities	14,173	13,511	12,834
Interest and dividends on investment securities
Taxable	241	238	315
Tax-exempt	3,431	3,047	1,377
Interest on reverse mortgage related assets	5,299	5,129	2,867
Other interest income	2,212	1,364	391
Total interest income	182,576	160,337	146,922
Interest Expense
Interest on deposits	7,165	7,151	7,180
Interest on Federal Home Loan Bank advances	3,008	2,427	1,874
Interest on federal funds purchased and securities sold under agreements to repurchase	360	1,051	994
Interest on trust preferred borrowings	1,362	1,321	1,342
Interest on bonds payable		15	60
Interest on senior debt	3,766	3,766	3,771
Interest on other borrowings	115	99	113
Total interest expense	15,776	15,830	15,334
Net interest income	166,800	144,507	131,588
Provision for loan losses	7,790	3,580	7,172
Net interest income after provision for loan losses	159,010	140,927	124,416
Noninterest Income
Credit/debit card and ATM income	25,702	24,129	24,350
Deposit service charges	16,684	17,071	17,208
Wealth management income	21,884	17,364	15,528
Mortgage banking activities, net	5,896	3,994	3,980
Reverse mortgage consolidation gain			3,801
Security gains, net	1,478	1,037	3,516
Loan fee income	1,834	1,921	1,959
Bank owned life insurance income	776	700	270
Other income	14,001	12,062	9,539
Total non interest income	88,255	78,278	80,151
Noninterest Expense
Salaries, benefits and other compensation	83,908	76,387	70,866
Occupancy expense	15,121	14,192	13,486
Equipment expense	8,448	7,705	8,322
Data processing and operations expenses	5,949	6,105	5,924
Professional fees	7,737	6,797	4,016
FDIC expenses	2,853	2,653	3,492
Loan workout and OREO expenses	1,108	2,542	2,536
Marketing expense	3,002	2,403	2,428
Corporate development costs	7,620	4,031	717
Early extinguishment of debt costs	651
Other operating expense	27,062	23,830	19,968
Total non interest expenses	163,459	146,645	131,755
Income before taxes	83,806	72,560	72,812
Income tax provision	30,273	18,803	25,930
Net Income	53,533	53,757	46,882
Dividends on preferred stock and accretion of discount			1,633
Net income allocable to common stockholders	$ 53,533	$ 53,757	$ 45,249
Basic	$ 1.88	$ 1.98	$ 1.71
Diluted	$ 1.85	$ 1.93	$ 1.69

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net Income		$ 53,533	$ 53,757	$ 46,882
Net change in unrealized (losses) gains on investment securities available-for-sale
Net unrealized (losses) gains arising during the period, net of tax (benefit) expense of ($868), $14,781, and ($19,478), respectively	[1]	(1,417)	24,118	(32,057)
Less: reclassification adjustment for net gains on sales realized in net income, net of tax expense of $562, $393, and $1,336, respectively		(916)	(643)	(2,180)
Net change in unrealized (losses) gains on investment securities available-for-sale		(2,333)	23,475	(34,237)
Net change in securities held-to-maturity
Amortization of unrealized gain on securities reclassified to held-to-maturity, net of tax (benefit) of $234, $0, and $0, respectively		(412)
Net change in unfunded pension liability
Change in unfunded pension liability related to unrealized (loss) gain, prior service cost and transition obligation, net of tax (benefit) expense of ($37), $808, and $0, respectively		(59)	1,319
Total other comprehensive (loss) income		(2,804)	24,794	(34,237)
Total comprehensive income		$ 50,729	$ 78,551	$ 12,645
[1]	2014 includes $3.6 million (net of tax expense of $2.2 million) of other comprehensive income related to the transfer of available-for-sale securities to held-to-maturity.

Consolidated Statements of Com4

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net change in Unrealized (losses) gains, tax (benefit) expense	$ (868)	$ 14,781	$ (19,478)
Reclassification adjustment for gains, tax expense	562	393	1,336
Amortization of unrealized gain on securities reclassified to held-to-maturity, tax benefit	234	0	0
Change in unfunded pension liability related to unrealized (loss) gain, prior service cost and transition obligation, tax (benefit) expense	$ (37)	808	$ 0
Other comprehensive income related to the transfer of available-for-sale securities to held-to-maturity, tax expense		3,600
Other comprehensive income related to the transfer of available-for-sale securities to held-to-maturity, net of tax expense		$ 2,200

Consolidated Statements of Cond

Consolidated Statements of Condition - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets:
Cash and due from banks	$ 83,065	$ 93,717
Cash in non-owned ATMs	477,924	414,188
Interest-bearing deposits in other banks	190	134
Total cash and cash equivalents	561,179	508,039
Investment securities, available-for-sale (book value $724,072 and $739,404 for 2015 and 2014, respectively)	721,029	740,124
Investment securities, held-to-maturity (fair value $167,743 and $126,171 for 2015 and 2014, respectively)	165,862	126,168
Loans held-for-sale at fair value	41,807	28,508
Loans, net of allowance for loan losses of $37,089 at December 31, 2015 and $39,426 at December 31, 2014	3,729,050	3,156,652
Reverse mortgage related assets	24,284	29,298
Bank-owned life insurance	90,208	76,509
Stock in Federal Home Loan Bank of Pittsburgh, at cost	30,519	23,278
Assets acquired through foreclosure	5,080	5,734
Accrued interest receivable	14,040	11,782
Premises and equipment	39,569	35,074
Goodwill	85,212	48,651
Intangible assets	10,083	8,942
Other assets	68,040	54,561
Total assets	5,585,962	4,853,320
Deposits:
Noninterest-bearing demand	958,238	804,678
Interest-bearing demand	784,619	688,370
Money market	1,090,050	1,066,224
Savings	439,918	402,032
Time	333,000	253,302
Jumbo certificates of deposit - customer	254,011	247,671
Total customer deposits	3,859,836	3,462,277
Brokered deposits	156,730	186,958
Total deposits	4,016,566	3,649,235
Federal funds purchased and securities sold under agreements to repurchase	128,200	128,225
Federal Home Loan Bank advances	669,514	405,894
Trust preferred borrowings	67,011	67,011
Senior debt	55,000	55,000
Other borrowed funds	14,486	11,645
Accrued interest payable	801	1,004
Other liabilities	53,913	46,255
Total liabilities	5,005,491	4,364,269
Stockholders' equity:
Common stock $0.01 par value, 65,000,000 shares authorized; issued 55,945,245 at December 31, 2015 and 55,697,127 at December 31, 2014	560	557
Capital in excess of par value	256,435	201,130
Accumulated other comprehensive income	696	3,500
Retained earnings	570,630	523,099
Treasury stock at cost, 26,182,401 shares at December 31, 2015 and 27,489,288 shares at December 31, 2014	(247,850)	(239,235)
Total stockholders' equity	580,471	489,051
Total liabilities and stockholders' equity	$ 5,585,962	$ 4,853,320

Consolidated Statements of Con6

Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Investment securities, available-for-sale, book value	$ 724,072	$ 739,404
Investment securities, held-to-maturity, fair value	167,743	126,171
Allowance for loan losses	$ 37,089	$ 39,426
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	65,000,000	65,000,000
Common stock, issued	55,945,245	55,697,124
Treasury stock, shares	26,182,401	27,489,288

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands		Total	First Wyoming Financial Corporation [Member]	Alliance Bancorp, Inc. [Member]	Serial Preferred Stock [Member]	Common Stock [Member]	Capital in Excess of Par Value [Member]	Capital in Excess of Par Value [Member]First Wyoming Financial Corporation [Member]	Capital in Excess of Par Value [Member]Alliance Bancorp, Inc. [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Treasury Stock [Member]First Wyoming Financial Corporation [Member]	Treasury Stock [Member]Alliance Bancorp, Inc. [Member]
Beginning Balance at Dec. 31, 2012		$ 421,054			$ 1	$ 555	$ 222,607			$ 12,943	$ 433,228	$ (248,280)
Net Income		46,882									46,882
Other comprehensive income (loss)		(34,237)								(34,237)
Cash dividend, per share		(4,224)									(4,224)
Issuance of common stock including proceeds from exercise of common stock options		4,353				1	4,352
Stock-based compensation expense		2,938					2,938
Excess tax benefit from exercises of common stock options	[1]	683					683
Preferred stock cash dividends		(1,774)									(1,774)
Preferred stock discount accretion							150				(150)
Redemption of preferred stock		(52,625)			$ (1)		(52,624)
Ending Balance at Dec. 31, 2013		383,050				556	178,106			(21,294)	473,962	(248,280)
Net Income		53,757									53,757
Other comprehensive income (loss)		24,794								24,794
Cash dividend, per share		(4,620)									(4,620)
Issuance of common stock including proceeds from exercise of common stock options		3,613				1	3,612
Stock-based compensation expense		3,738					3,738
Excess tax benefit from exercises of common stock options	[1]	797					797
Repurchase of Warrant		(6,300)					(6,300)
Acquisition			$ 32,908					$ 21,177					$ 11,731
Repurchases of common stock		(2,686)										(2,686)
Ending Balance at Dec. 31, 2014		489,051				557	201,130			3,500	523,099	(239,235)
Net Income		53,533									53,533
Other comprehensive income (loss)		(2,804)								(2,804)
Cash dividend, per share		(6,002)									(6,002)
Issuance of common stock including proceeds from exercise of common stock options		3,160				3	3,157
Stock-based compensation expense		2,957					2,957
Excess tax benefit from exercises of common stock options	[1]	890					890
Acquisition				$ 71,345					$ 48,301					$ 23,044
Repurchases of common stock		(31,659)										(31,659)
Ending Balance at Dec. 31, 2015		$ 580,471				$ 560	$ 256,435			$ 696	$ 570,630	$ (247,850)
[1]	Net of deferred tax adjustments for expired options.

Consolidated Statement of Chan8

Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Stockholders' Equity [Abstract]
Cash dividend per share	$ 0.21	$ 0.17	$ 0.16
Repurchases of common stock, shares	1,152,233	105,564

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities:
Net Income	$ 53,533	$ 53,757	$ 46,882
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	7,790	3,580	7,172
Depreciation of premises and equipment	6,333	5,951	6,007
Amortization of fees and discounts, net	18,490	10,836	10,367
Amortization of intangible assets	1,847	1,263	962
Increase in accrued interest receivable	(1,334)	(984)	(1,146)
Increase (decrease) in other assets	(1,643)	(1,455)	5,470
Origination of loans held-for-sale	(573,703)	(230,841)	(250,083)
Proceeds from sales of loans held-for-sale	563,588	235,908	254,135
Gain on mortgage banking activity, net	(5,896)	(3,994)	(3,980)
Gain on mark to market adjustment on trading securities			125
Gain on sale of securities, net	(1,478)	(1,037)	(3,641)
Reverse mortgage consolidation gain			(3,801)
Stock-based compensation expense	4,095	4,535	3,621
Excess tax benefits from share based payment arrangements	(890)	(797)	(683)
Decrease in accrued interest payable	(203)	(65)	(261)
Increase (decrease) in other liabilities	6,502	2,054	(12,465)
Loss on sale of assets acquired through foreclosure and valuation adjustments, net	319	144	868
Increase in value of bank-owned life insurance	(776)	(700)	(270)
Deferred income tax expense (benefit)	2,231	(5,664)	755
Increase in capitalized interest, net	(5,518)	(5,435)	(2,653)
Net cash provided by operating activities	73,287	67,056	57,381
Investing activities:
Maturities and calls of investment securities	5,551	4,572	770
Sales of investment securities available for sale	192,933	229,515	274,070
Purchases of investment securities available for sale	(277,963)	(286,915)	(335,584)
Repayments of investment securities available for sale	100,485	79,006	90,041
Purchases of investment securities held-to-maturity	(48,184)	(1,295)
Repayments on reverse mortgages	11,393	14,677	4,929
Disbursements for reverse mortgages	(861)	(1,212)	(391)
Cash received in consolidation of reverse mortgage securitization trust			5,833
Investment in non-marketable securities	(3,589)
Net Cash for Business Combinations	40,863	8,660	(4,029)
Net increase in loans	(285,694)	(86,618)	(207,043)
Net (increase) decrease in stock of Federal Home Loan Bank of Pittsburgh	(7,241)	12,591	(4,704)
Sales of assets acquired through foreclosure, net	4,828	5,191	6,511
Investment in premises and equipment, net	(8,362)	(4,736)	(2,863)
Net cash used for investing activities	(275,841)	(26,564)	(172,460)
Financing Activities:
Net increase (decrease) in demand and savings deposits	159,587	226,400	63,498
(Decrease) in time deposits	(103,710)	(23,906)	(153,113)
(Decrease) increase in brokered deposits	(30,228)	18,231	(1,914)
Increase (decrease) in loan payable	61	(370)	(698)
Repayment of securities sold under agreement to repurchase	(25,000)
Repayment of reverse mortgage trust bonds payable		(21,990)	(4,349)
Receipts from federal funds purchased and securities sold under agreement to repurchase	31,887,100	25,741,826	21,291,625
Repayments of federal funds purchased and securities sold under agreement to repurchase	(31,862,125)	(25,710,601)	(21,304,625)
Receipts from FHLB advances	63,310,841	78,831,426	48,790,848
Repayments of FHLB advances	(63,047,221)	(79,068,675)	(48,529,067)
Dividends paid	(6,002)	(4,644)	(5,998)
Issuance of common stock and exercise of common stock options	3,160	3,613	4,353
Redemption of preferred stock			(52,625)
Repurchase of common stock warrants		(6,300)
Buy back of common stock	(31,659)	(2,686)
Excess tax benefits from share-based payment arrangements	890	797	683
Net cash provided (used for) by financing activities	255,694	(16,879)	98,618
Increase (decrease) in cash and cash equivalents	53,140	23,613	(16,461)
Cash and cash equivalents at beginning of year	508,039	484,426	500,887
Cash and cash equivalents at end of year	561,179	508,039	484,426
Supplemental Disclosure of Cash Flow Information:
Cash paid in interest during the year	15,978	15,664	15,696
Cash paid for income taxes, net	23,404	23,688	21,868
Loans transferred to assets acquired through foreclosure	3,725	4,896	7,289
Loans transferred to portfolio from held-for-sale at fair value	(1,499)	2,418	9,131
Net change in accumulated other comprehensive income (loss)	(2,804)	24,794	(34,237)
Fair value of assets acquired, net of cash received	340,238	244,836	12,817
Fair value of liabilities assumed	346,181	236,886	10,127
Fair value of assets consolidated			41,397
Fair value of liabilities consolidated			26,339
Reissuance of treasury stock for acquisitions, net	71,345	32,908
Investment securities transferred from available-for-sale to held-to-maturity		124,873
Non-cash goodwill adjustments, net	$ 136	$ 46	$ (160)

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The acronyms and abbreviations identified below are used in the Notes to Consolidated Financial Statements as well as in the Management’s Discussion and Analysis of Financial Condition and Results of Operations. You may find it helpful to refer back to this page as you read this report. Allowance or ALLL: Allowance for loan losses Federal Reserve: Board of Governors of the Federal Alliance: Alliance Bancorp, Inc. of Pennsylvania Reserve System ASC: Accounting standard codification Monarch: Monarch Entity Services, LLC Associate: Employee FHLB: Federal Home Loan Bank ASU: Accounting standard update FHLMC: Federal Home Loan Mortgage Corporation BCBS: Basel Committee on Banking Supervision GAAP: U.S. Generally Accepted Accounting Principles C&I: Commercial & Industrial (loans) GNMA: Government National Mortgage Association CMO: Collateralized mortgage obligation GSE: U.S. Government and government Cypress: Cypress Capital Management, LLC SEC: Securities and Exchange Commission Dodd-Frank Act: Dodd-Frank Wall Street Reform sponsored enterprises and Consumer Protection Act of 2010 NSFR: Net stable funding ratio DTA: Deferred tax asset MBS: Mortgage-backed securities EPS: Earnings per share OCC: Office of the Comptroller of the Currency Exchange Act: Securities Exchange Act of 1934 OREO: Other real estate owned FASB: Financial Accounting Standards Board OTTI: Other-than-temporary impairment FDIC: Federal Deposit Insurance Corporation TDR: Troubled debt restructuring FNMA: Federal National Mortgage Association Organization WSFS Financial Corporation (the Company or as a consolidated institution, we, our or us) is a savings and loan holding company organized under the laws of the State of Delaware. Our principal wholly-owned subsidiary, Wilmington Savings Fund Society, FSB (WSFS Bank or the Bank), is a federal savings bank organized under the laws of the United States which, at December 31, 2015, served customers primarily from our 63 offices located in Delaware (44), Pennsylvania (17), Virginia (1), and Nevada (1) and through our website at www.wsfsbank.com In preparing the Consolidated Financial Statements, we are required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Although our estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions in 2016 could be worse than anticipated in those estimates, which could materially affect our results of operations and financial condition. Amounts subject to significant estimates are items such as the allowance for loan losses and reserves for lending related commitments, goodwill, intangible assets, post-retirement benefit obligations, the fair value of financial instruments, reverse mortgage related assets, income taxes and OTTI. Among other effects, changes to such estimates could result in future impairments of investment securities, goodwill and intangible assets and establishment of the allowance and lending related commitments as well as increased post-retirement benefits expense. Basis of Presentation Our Consolidated Financial Statements include the accounts of the parent company and its wholly-owned subsidiaries, WSFS Bank and Cypress. We also have one unconsolidated affiliate, WSFS Capital Trust III (the Trust). WSFS Bank has three wholly-owned subsidiaries, WSFS Wealth Investments, 1832 Holdings, Inc. and Monarch. WSFS Wealth Investments markets various third-party insurance and securities products to Bank customers through the Bank’s retail banking system. 1832 Holdings, Inc. was formed to hold certain debt and equity investment securities. Monarch provides commercial domicile services which include providing employees, directors, subleases and registered agent services in Delaware and Nevada. Cypress was formed to provide asset management products and services. As a Wilmington-based investment advisory firm servicing high net worth individuals and institutions, it has approximately $638 million in assets under management at December 31, 2015, compared to approximately $661 million at December 31, 2014. WSFS Capital Trust III (the Trust) is our unconsolidated subsidiary, and was formed in 2005 to issue $67.0 million aggregate principal amount of Pooled Floating Rate Capital Securities. The proceeds from this issue were used to fund the redemption of $51.5 million of Floating Rate WSFS Capital Trust I Preferred Securities (formerly, WSFS Capital Trust I). WSFS Capital Trust I invested all of the proceeds from the sale of the Pooled Floating Rate Capital Securities in our Junior Subordinated Debentures. Whenever necessary, reclassifications have been made to the prior years’ Consolidated Financial Statements to conform to the current year’s presentation. All significant intercompany transactions were eliminated in consolidation. Common Stock Split In March 2015, the Company’s Board of Directors adopted an amendment to the Company’s Certificate of Incorporation, to increase the number of shares of common stock the Company is authorized to issue from 20,000,000, par value $0.01 to 65,000,000, par value $0.01. This amendment to the Company’s Certificate of Incorporation was approved by the Company’s stockholders at the 2015 Annual Meeting held on April 30, 2015. In May 2015, the Company effected a three-for-one stock split in the form of a stock dividend to shareholders of record as of May 4, 2015. All share and per share information has been retroactively adjusted to reflect the stock split. We retroactively adjusted stockholders’ equity to reflect the stock split by reclassifying an amount equal to the par value, $0.01, of the additional shares arising from the split from capital in excess of par value to common stock, resulting in no net impact to stockholders’ equity on our Consolidated Statements of Condition. Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash, cash in non-owned ATMs, amounts due from banks, federal funds sold and securities purchased under agreements to resell. Debt and Equity Securities Investments in equity securities that have a readily determinable fair value and investments in debt securities are classified into three categories and accounted for as follows: • Debt securities with the positive intention to hold to maturity are classified as “held-to-maturity” and reported at amortized cost. • Debt and equity securities purchased with the intention of selling them in the near future are classified as “trading securities” and reported at fair value, with unrealized gains and losses included in earnings. • Debt and equity securities not classified in either of the above are classified as “available-for-sale securities” and reported at fair value, with unrealized gains and losses excluded from earnings and reported, net of tax, as a separate component of stockholders’ equity. Debt and equity securities include MBS, municipal bonds, U.S. Government and agency securities and certain equity securities. Premiums and discounts on debt and equity securities, held-to-maturity and available-for-sale, are recognized in interest income using a level yield method over the period to expected maturity. The fair value of debt and equity securities is primarily obtained from third-party pricing services. Implicit in the valuation are estimated prepayments based on historical and current market conditions. We follow ASC 320-10-55 “ Investments—Debt and Equity Securities For additional detail regarding debt and equity securities, see Note 3 to the Consolidated Financial Statements. Reverse Mortgage Loans We account for our investment in reverse mortgages in accordance with the instructions provided by the staff of the SEC entitled “Accounting for Pools of Uninsured Residential Reverse Mortgage Contracts,” which requires grouping the individual reverse mortgages into “pools” based on similar characteristics and recognizing income based on the estimated effective yield of the pools. In computing the effective yield, we must project the cash inflows and outflows of the pool including actuarial projections of the life expectancy of the individual contract holder and changes in the collateral value of the residence. At each reporting date, a new economic forecast is made of the cash inflows and outflows of each pool of reverse mortgages. The effective yield of each pool is recomputed and income is adjusted to reflect the revised rate of return. Because of this highly specialized accounting, the recorded value of reverse mortgage assets can result in significant volatility associated with estimations. As a result, income recognition can vary significantly from reporting period to reporting period. For additional detail regarding reverse mortgages, see Note 7 to the Consolidated Financial Statements. Loans Loans are stated net of deferred fees and costs. Interest income on loans is recognized using the level yield method. Loan origination fees, commitment fees and direct loan origination costs are deferred and recognized over the life of the related loans using a level yield method over the period to maturity. A loan is impaired when, based on current information and events, it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement. Impaired loans are measured based on the present value of expected future discounted cash flows, the market price of the loan or the fair value of the underlying collateral if the loan is collateral dependent. In addition, all loans restructured in a troubled debt restructuring are considered to be impaired. Impaired loans include loans within our commercial (investor and owner-occupied), commercial mortgage, commercial construction, residential mortgages and consumer portfolios. Our policy for recognition of interest income on impaired loans, excluding accruing loans, is the same as for nonaccrual loans discussed below. In addition to originating loans, we occasionally acquire loans through mergers or loan purchase transactions. Some of these acquired loans may exhibit deteriorated credit quality that has occurred since origination and we may not expect to collect all contractual payments. Accounting for these purchased credit-impaired loans is done in accordance with ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality For additional detail regarding impaired loans, see Note 6 to the Consolidated Financial Statements and for additional detail regarding purchased credit impaired loans see Note 4 to the Consolidated Financial Statements. Past Due and Nonaccrual Loans Past due loans are defined as loans contractually past due 90 days or more as to principal or interest payments but which remain in accrual status because they are considered well secured and in the process of collection. Nonaccruing loans are those on which the accrual of interest has ceased. Loans are placed on nonaccrual status immediately if, in the opinion of management, collection is doubtful, or when principal or interest is past due 90 days or more and the loan is not well secured and in the process of collection. Interest accrued but not collected at the date a loan is placed on nonaccrual status is reversed and charged against interest income. In addition, the amortization of net deferred loan fees is suspended when a loan is placed on nonaccrual status. Subsequent cash receipts are applied either to the outstanding principal balance or recorded as interest income, depending on management’s assessment of the ultimate collectability of principal and interest. Loans are returned to an accrual status when we assess that the borrower has the ability to make all principal and interest payments in accordance with the terms of the loan (i.e. including a consistent repayment record, generally six consecutive payments, has been demonstrated). For additional detail regarding past due and nonaccrual loans, see Note 6 to the Consolidated Financial Statements. Allowance for Loan Losses We maintain an allowance for loan losses and charge losses to this allowance when such losses are realized. The determination of the allowance for loan losses requires significant judgment reflecting our best estimate of impairment related to specifically identified loans as well as probable loan losses in the remaining loan portfolio. Our evaluation is based upon a continuing review of these portfolios. We have established the loan loss allowance in accordance with guidance provided by the SEC’s Staff Accounting Bulletin 102 (SAB 102) and FASB ASC 450, Contingencies For additional detail regarding the allowance for loan losses and the provision for loan losses, see Note 6 to the Consolidated Financial Statements. Loans Held-for-Sale Loans held-for-sale are carried at their fair value on a loan level. Assets Acquired Through Foreclosure Assets acquired through foreclosure are recorded at the lower of the recorded investment in the loans or their fair value less estimated disposal costs. Costs subsequently incurred to improve the assets are included in the carrying value provided that the resultant carrying value does not exceed fair value less estimated disposal costs. Costs relating to holding or disposing of the assets are charged to expense in the current period. We write-down the value of the assets when declines in fair value below the carrying value are identified. Loan workout and OREO expenses include costs of holding and operating the assets, net gains or losses on sales of the assets and provisions for losses to reduce such assets to fair value less estimated disposal costs. During 2015, we recorded $276,000 in charges (including write-downs and net losses on sales of assets) related to assets acquired through foreclosure (REO). These charges were $672,000 and $592,000 for the years ended December 31, 2014 and 2013, respectively. As of December 31, 2015 we had $5.7 million in residential real estate in process of foreclosure. For additional detail regarding assets acquired through foreclosure, see Note 6 to the Consolidated Financial Statements. Premises and Equipment Premises and equipment is stated at cost less accumulated depreciation and amortization. Costs of major replacements, improvements and additions are capitalized. Depreciation expense is computed on a straight-line basis over the estimated useful lives of the assets or, for leasehold improvements, over the effective life of the related lease if less than the estimated useful life. In general, computer equipment, furniture and equipment and building renovations are depreciated over three, five and ten years, respectively. For additional detail regarding the provision for premises and equipment, see Note 8 to the Consolidated Financial Statements. Goodwill and Other Intangible Assets In accordance with FASB ASC 805, Business Combinations Intangibles-Goodwill and Other Simplifying the Accounting for Measurement-Period Accounting We consider our accounting policies related to goodwill and other intangible assets to be critical because the assumptions or judgment used in determining the fair value of assets and liabilities acquired in past acquisitions are subjective and complex. As a result, changes in these assumptions or judgment could have a significant impact on our financial condition or results of operations. For additional information regarding our goodwill and other intangible assets, see Notes 2 & 9 to the Consolidated Financial Statements. Federal Funds Purchased and Securities Sold Under Agreements to Repurchase We enter into sales of securities under agreements to repurchase. Securities sold under agreements to repurchase are treated as financings, with the obligation to repurchase securities sold reflected as a liability in the Consolidated Statement of Condition. The securities underlying the agreements are assets. Generally, federal funds are purchased for periods ranging up to 90 days. For additional detail regarding the Federal funds purchased and sold under agreements to repurchase, see Note 11 to the Consolidated Financial Statements. Loss Contingency for Unfunded Commitments We maintain a loss contingency accrual for probable losses related to unfunded commitments. The determination of the loss contingency for unfunded commitments requires significant judgment reflecting management’s best estimate of probable losses related to unfunded commitments. For additional detail regarding loss contingency and unfunded commitments, see Note 11 to the Consolidated Financial Statements. Income Taxes The provision for income taxes includes federal, state and local income taxes currently payable and those deferred because of temporary differences between the financial statement basis and tax basis of assets and liabilities. We account for income taxes in accordance with FASB ASC 740, Income Taxes For additional detail regarding income taxes, see Note 15 to the Consolidated Financial Statements. Stock-Based Compensation Stock-based compensation is accounted for in accordance with FASB ASC 718, Stock Compensation For additional detail regarding stock-based compensation, see Note 16 to the Consolidated Financial Statements. Earnings Per Share The following table shows the computation of basic and diluted earnings per share: (In Thousands, Except Per share Data) 2015 2014 2013 Numerator: Net income allocable to common shareholders $ 53,533 $ 53,757 $ 45,249 Denominator: Denominator for basic earnings per share - weighted average shares 28,435 27,218 26,453 Effect of dilutive employee stock options, restricted stock and warrants 508 690 377 Denominator for diluted earnings per share - adjusted weighted average shares and assumed exercised 28,943 27,908 26,830 Earnings per share: Basic: Net income allocable to common shareholders $ 1.88 $ 1.98 $ 1.71 Diluted: Net income allocable to common shareholders $ 1.85 $ 1.93 $ 1.69 Outstanding common stock equivalents having no dilutive effect 83 127 1,324 RECENT ACCOUNTING PRONOUNCEMENTS Accounting Guidance Adopted in 2015 In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments. In August 2014, the FASB issued ASU No. 2014-14 , Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure (a consensus of the FASB Emerging Issues Task Force). In June 2014, the FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures. In January 2014, the FASB issued ASU No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure . In January 2014, the FASB, issued ASU No. 2014-01, Investments — Equity Method and Joint Ventures (Topic 323) — Accounting for Investments in Qualified Affordable Housing Projects (a consensus of the FASB Emerging Issues Task Force). Income Taxes Management’s Discussion and Analysis of Financial Condition and Results of Operations Accounting Guidance Pending Adoption at December 31, 2015 In June 2014, the FASB issued ASU 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). Revenue Recognition. Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date. In April 2015, the FASB issued ASU No. 2015-03, Interest- Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs. In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842)

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2015
Business Combinations [Abstract]
Business Combinations	2. BUSINESS COMBINATIONS Penn Liberty Financial Corporation On November 23, 2015, we along with Penn Liberty Financial Corporation (Penn Liberty) announced the signing of a definitive agreement and plan of reorganization whereby we would acquire Penn Liberty. Upon the closing of the transaction, Penn Liberty will merge into the Company and Penn Liberty Bank will merge into WSFS Bank. Penn Liberty is a locally managed institution with eleven branch locations headquartered in Wayne, Pennsylvania. It reported $704 million in assets, $510 million in loans and $621 million in deposits as of December 31, 2015. We expect this acquisition to build our market share, expand our customer base and enhance our fee income. The total transaction is valued at approximately $101 million and is expected to close early in the third quarter of 2016, subject to approval by the shareholders of Penn Liberty, regulatory approvals and other customary closing conditions. Alliance Bancorp, Inc. of Pennsylvania On October 9, 2015 we completed the acquisition of Alliance and its wholly owned subsidiary, Alliance Bank, headquartered in Broomall, Pennsylvania. At that time Alliance merged into the Company and Alliance Bank merged into WSFS Bank. In accordance with the terms of the Agreement and Plan of Merger, dated March 2, 2015, holders of shares of Alliance common stock received, in aggregate, $26.6 million in cash and 2,459,120 shares of WSFS common stock. The transaction was valued at $97.9 million based on WSFS’ October 9, 2015 closing share price of $29.01 as quoted on NASDAQ. The results of the combined entity’s operations are included in our Consolidated Financial Statements since the date of the acquisition. The acquisition of Alliance was accounted for as a business combination using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration paid were recorded at their estimated fair values as of the acquisition date. The fair values are preliminary estimates and are subject to adjustment during the one year measurement period after the acquisition. The excess of consideration paid over the preliminary fair value of net assets acquired was recorded as goodwill in the amount of $36.4 million, which will not be amortizable and is not deductible for tax purposes. The Company allocated the total balance of goodwill to its WSFS Bank segment. The Company also recorded $2.6 million in core deposit intangibles which are being amortized over ten years using the straight-line depreciation method and $511,000 for non-compete covenants which are being amortized between six and eighteen months. In connection with the merger, the consideration paid and the fair value of identifiable assets acquired and liabilities assumed, as of the date of acquisition, are summarized in the following table: (In Thousands) Fair Value Consideration Paid: Common shares issued (2,459,120) $ 71,345 Cash paid to Alliance stockholders 26,576 Value of consideration 97,921 Assets acquired: Cash and due from banks 67,439 Investment securities 3,002 Loans 307,695 Premises and equipment 2,685 Deferred income taxes 7,544 Bank owned life insurance 12,923 Core deposit intangible 2,635 Other real estate owned 768 Other assets 2,986 Total assets 407,677 Liabilities assumed: Deposits 341,682 Other borrowings 2,826 Other liabilities 1,673 Total liabilities 346,181 Net assets acquired: 61,496 Goodwill resulting from acquisition of Alliance $ 36,425 In many cases, the fair values of assets acquired and liabilities assumed were determined by estimating the cash flows expected to result from those assets and liabilities and discounting them at appropriate market rates. Acquired loans were recorded at their fair value as of the acquisition date. The fair value was based on a discounted cash flow methodology that uses assumptions as to credit risk, default rates, collateral values, loss severity, along with estimated prepayment rates. Non-impaired acquired loans had a gross contractual balance of $294.1 million and a fair value of $284.9 million. Loans that had deteriorated in credit quality since their origination, and for which it was probable that all contractual cash flows would not be received, were accounted for in accordance with ASC 310-30 “ Loans and Debt Securities Acquired with Deteriorated Credit Quality” The Company acquired Alliance’s investment portfolio with a fair value of $3.0 million. The fair value of the investment portfolio was determined to be equal to book value as it consisted of only one security which matured in November 2015. The Company recorded a deferred income tax asset (DTA) of $7.5 million related to tax attributes of Alliance along with the effects of fair value adjustments resulting from acquisition accounting for the combination. The fair value of savings and transaction deposit accounts acquired was assumed to approximate their carrying value as these accounts have no stated maturity and are payable on demand. Certificates of deposit accounts were valued by comparing the contractual cost of the portfolio to an identical portfolio bearing current market rates. The portfolio was segregated into pools based on remaining maturity. For each pool, the projected cash flows from maturing certificates were then calculated based on contractual rates and prevailing market rates. The valuation adjustment for each pool is equal to the present value of the difference of these two cash flows, discounted at the assumed market rate for a certificate with a corresponding maturity. The valuation adjustment of $1.4 million will be accreted or amortized to interest expense over the remaining maturities of the respective pools. The other borrowings were sweep repos and their carrying amount at October 9, 2015 is a reasonable estimate of their fair value. Direct costs related to the acquisition were expensed as incurred. During the twelve months ended December 31, 2015, the Company incurred $6.9 million in integration expenses, including $3.4 million in salary and benefits, $1.9 million in professional fees, $792,000 in marketing expense and $458,000 in data processing expense. First Wyoming Financial Corporation On September 5, 2014, the Company completed the merger of First Wyoming Financial Corporation (FNBW) into the Company and the merger of FNBW’s wholly-owned subsidiary, The First National Bank of Wyoming into the Bank. In accordance with the terms of the Agreement and Plan of Merger, dated November 25, 2013, holders of shares of FNBW common stock received, in aggregate, $32.0 million in cash and 1,357,983 shares (adjusted for our 3-for-1 stock split) of WSFS common stock. The transaction was valued at $64.9 million based on WSFS’ September 5, 2014 closing share price of $24.23 (adjusted for our 3-for-1 stock split) as quoted on NASDAQ. The results of the combined entity’s operations are included in our Consolidated Financial Statements since the date of the acquisition. The acquisition of FNBW was accounted for as a business combination using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration paid were recorded at their estimated fair values as of the acquisition date. The excess of consideration paid over the preliminary fair value of net assets acquired was recorded as goodwill in the amount of $16.5 million, which will not be amortizable and is not deductible for tax purposes. The Company allocated the total balance of goodwill to its WSFS Bank segment. The Company also recorded $3.2 million in core deposit intangibles which are being amortized over ten years using an accelerated depreciation method. In connection with the merger, the consideration paid and the fair value of identifiable assets acquired and liabilities assumed, as of the date of acquisition, are summarized in the following table: (In Thousands) Fair Value Consideration Paid: Common shares issued (1,357,983) $ 32,908 Cash paid to FNBW stockholders 32,028 Value of consideration 64,936 Assets acquired: Cash and due from banks 40,605 Investment securities 41,822 Loans 175,895 Premises and equipment 1,611 Deferred income taxes 3,216 Bank owned life insurance 12,576 Core deposit intangible 3,240 Other Real Estate Owned 1,593 Other assets 4,659 Total assets 285,217 Liabilities assumed: Deposits 228,844 FHLB advances 5,052 Other liabilities 2,891 Total liabilities 236,787 Net assets acquired: 48,430 Goodwill resulting from acquisition of FNBW: $ 16,506 The following table details the changes to goodwill: Fair Value Goodwill resulting from the acquisition of FNBW reported as of September 30, 2014 $ 16,370 Effects of adjustments to: Assets 236 Liabilities (100 ) Final purchase price — Adjusted goodwill resulting from the acquisition of FNBW as of December 31, 2015 $ 16,506

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investment Securities	3. INVESTMENT SECURITIES The following tables detail the amortized cost and the estimated fair value of our available-for-sale and held-to-maturity investment securities: (In Thousands) Amortized Gross Gross Fair Value Available-for-sale securities: December 31, 2015 GSE $ 31,041 $ — $ 127 $ 30,914 CMO 253,189 713 2,414 251,488 FNMA MBS 320,105 1,081 2,715 318,471 FHLMC MBS 99,350 405 313 99,442 GNMA MBS 20,387 420 93 20,714 $ 724,072 $ 2,619 $ 5,662 $ 721,029 (In Thousands) Amortized Gross Gross Fair Value Available-for-sale securities: December 31, 2014 GSE $ 30,020 $ 14 $ 74 $ 29,960 CMO 193,672 874 1,614 192,932 FNMA MBS 291,606 2,053 1,106 292,553 FHLMC MBS 146,742 672 532 146,882 GNMA MBS 77,364 701 268 77,797 $ 739,404 $ 4,314 $ 3,594 $ 740,124 (In Thousands) Amortized Gross Gross Fair Value Held-to-Maturity Securities (a) December 31, 2015 State and political subdivisions $ 165,862 $ 1,943 $ 62 $ 167,743 (In Thousands) Amortized Gross Gross Fair Value Held-to-Maturity Securities (a) December 31, 2014 State and political subdivisions $ 126,168 $ 3 $ — $ 126,171 (a) Held-to-maturity securities transferred from available-for-sale are included in held-to-maturity at fair value at the time of transfer. The amortized cost of held-to-maturity securities included net unrealized gains of $2.9 million and $3.6 million at December 31, 2015 and December 31, 2014, respectively, related to securities transferred, which are offset in Accumulated Other Comprehensive Income, net of tax. The scheduled maturities of investment securities at December 31, 2015 and December 31, 2014 were as follows: Available-for-Sale (In Thousands) Amortized Cost Fair Value 2015 (1) Within one year $ 3,997 $ 3,995 After one year but within five years 30,009 29,840 After five years but within ten years 218,023 215,018 After ten years 472,043 472,176 $ 724,072 $ 721,029 2014 (1) Within one year $ 10,000 $ 10,014 After one year but within five years 20,020 19,946 After five years but within ten years 134,453 133,395 After ten years 574,931 576,769 $ 739,404 $ 740,124 Held-to-Maturity (In Thousands) Amortized Fair Value 2015 (1) Within one year $ 1,486 $ 1,488 After one year but within five years 3,465 3,456 After five years but within ten years 7,939 8,045 After ten years 152,972 154,754 $ 165,862 $ 167,743 2014 (1) Within one year $ 3,608 $ 3,608 After one year but within five years 6,217 6,217 After five years but within ten years 9,733 9,736 After ten years 106,610 106,610 $ 126,168 $ 126,171 (1) Actual maturities could differ from contractual maturities. MBS have expected maturities that differ from their contractual maturities. These differences arise because borrowers have the right to call or prepay obligations with or without a prepayment penalty. Investment securities with fair market values aggregating $457.0 million, $470.4 million and $447.7 million were pledged as collateral for retail customer repurchase agreements, municipal deposits, and other obligations as of December 31, 2015, 2014 and 2013, respectively. From time to time, investment securities are also pledged as collateral for FHLB borrowings. There were no FHLB pledged investment securities at December 31, 2015, 2014 or 2013. During 2015, we sold $192.8 million of investment securities categorized as available-for-sale for net gains of $1.5 million, of which $1.5 million was gain and $1,000 was losses. In 2014, we sold $227.7 million investment securities categorized as available-for-sale for net gains of $1.0 million, of which $1.1 million was gain and $60,000 was losses. The cost basis of all investment securities sales is based on the specific identification method. As of December 31, 2015, our investment securities portfolio had remaining unamortized premiums of $18.3 million and $306,000 of unaccreted discounts. For these investment securities with unrealized losses, the table below shows our gross unrealized losses and fair value by investment category and length of time that individual securities were in a continuous unrealized loss position at December 31, 2015. Duration of Unrealized Loss Position Less than 12 months 12 months or longer Total (In Thousands) Available-for-sale securities: Fair Value Unrealized Fair Unrealized Fair Value Unrealized GSE $ 30,914 $ 127 $ — $ — $ 30,914 $ 127 CMO 139,486 1,703 26,536 711 166,022 2,414 FNMA MBS 214,465 2,715 — — 214,465 2,715 FHLMC MBS 41,791 136 4,025 177 45,816 313 GNMA MBS 4,073 29 2,377 64 6,450 93 Total temporarily impaired investments $ 430,729 $ 4,710 $ 32,938 $ 952 $ 463,667 $ 5,662 Less than 12 months 12 months or longer Total (In Thousands) Held-to-maturity Fair Value Unrealized Fair Unrealized Fair Value Unrealized State and political subdivisions $ 9,845 $ 62 $ — $ — $ 9,845 $ 62 Total temporarily impaired investments $ 9,845 $ 62 $ — $ — $ 9,845 $ 62 For these investment securities with unrealized losses, the table below shows our gross unrealized losses and fair value by investment category and length of time that individual securities were in a continuous unrealized loss position at December 31, 2014. Less than 12 months 12 months or longer Total (In Thousands) Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale securities: Value Loss Value Loss Value Loss GSE $ 19,945 $ 74 $ — $ — $ 19,945 $ 74 CMO 15,492 108 61,630 1,506 77,122 1,614 FNMA MBS — — 103,207 1,106 103,207 1,106 FHLMC MBS 23,901 54 58,267 478 82,168 532 GNMA MBS — — 48,312 268 48,312 268 Total temporarily impaired investments $ 59,338 $ 236 $ 271,416 $ 3,358 $ 330,754 $ 3,594 There were no held-to-maturity securities in an unrealized loss position as of December 31, 2014. At December 31, 2015, we owned investment securities totaling $473.5 million in which the amortized cost basis exceeded fair value. Total unrealized losses on these securities were $5.7 million at December 31, 2015. The temporary impairment is the result of changes in market interest rates subsequent to the purchase of the securities. Our investment portfolio is reviewed each quarter for indications of other than temporary impairment. This review includes analyzing the length of time and the extent to which the fair value has been lower than the amortized cost, the financial condition and near-term prospects of the issuer, including any specific events which may influence the operations of the issuer and our intent and ability to hold the investment for a period of time sufficient to allow for full recovery of the unrealized loss. We evaluate our intent and ability to hold securities based upon our investment strategy for the particular type of security and our cash flow needs, liquidity position, capital adequacy and interest rate risk position. In addition, we do not have the intent to sell, nor is it more likely-than-not we will be required to sell these securities before we are able to recover the amortized cost basis. All securities, with the exception of one, were AA- rated or better at the time of purchase and remained investment grade at December 31, 2015. All securities were evaluated for OTTI at December 31, 2015 and 2014. The result of this evaluation showed no OTTI as of December 31, 2015 or 2014. The weighted average duration of MBS was 4.7 years at December 31, 2015.

Acquired Credit Impaired Loans

Acquired Credit Impaired Loans	12 Months Ended
	Dec. 31, 2015
Transfers and Servicing [Abstract]
Acquired Credit Impaired Loans	4. ACQUIRED CREDIT IMPAIRED LOANS On October 9, 2015, we acquired $24.6 million of credit impaired loans from an acquisition with Alliance. Loans that have deteriorated in credit quality since their origination, and for which it is probable that all contractual cash flows will not be received, are accounted for in accordance with FASB ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality Nonrefundable Fees and Other Costs The following table details the loans acquired through the Alliance merger on October 9, 2015 that are accounted for in accordance with FASB ASC 310-30. (In Thousands) October 9, 2015 Contractually required principal and interest at acquisition* $ 27,469 Contractual cash flows not expected to be collected (nonaccretable difference) 2,377 Expected cash flows at acquisition 25,092 Interest component of expected cash flows (accretable yield) 2,334 Fair value of acquired loans accounted for under FASB ASC 310-30 $ 22,758 * The difference between $27.4 and $24.6 in Note 2 is contractual interest to be received On September 5, 2014, $24.2 million of impaired loans were acquired from FNBW. At December 31, 2015, there were six FNBW acquired loans accounted for under ASC 310-20 classified as nonaccrual loans with a carrying value of $302,000. The following table details the loans acquired through the FNBW merger on September 5, 2014 that are accounted for in accordance with FASB ASC 310-30. (In Thousands) September 5, 2014 Contractually required principal and interest at acquisition* $ 27,086 Contractual cash flows not expected to be collected (nonaccretable difference) 7,956 Expected cash flows at acquisition 19,130 Interest component of expected cash flows (accretable yield) 1,790 Fair value of acquired loans accounted for under FASB ASC 310-30 $ 17,340 * The difference between $27.1 and $24.2 in Note 2 is contractual interest to be received The following is the outstanding principal balance and carrying amounts for all acquired credit impaired loans for which the company applies ASC 310-30 as of December 31, 2015 and 2014: (In Thousands) December 31, 2015 December 31, 2014 Outstanding principal balance $ 38,067 $ 22,752 Carrying amount 32,568 15,893 Allowance for loan losses 132 — The following table presents the changes in accretable yield on all acquired credit impaired loans for the years indicated: Accretable Balance as of September 5, 2014 $ 1,790 Accretion (250 ) Reclassification from nonaccretable difference — Additions/adjustments (42 ) Disposals — Ending balance as of December 31, 2014 $ 1,498 Addition from Alliance acquisition 2,334 Accretion (1,405 ) Reclassification from nonaccretable difference 3,054 Additions/adjustments (714 ) Disposals (3 ) Ending balance as of December 31, 2015 $ 4,764

Loans

Loans	12 Months Ended
	Dec. 31, 2015
Receivables [Abstract]
Loans	5. LOANS The following table details our loan portfolio by category: December 31, 2015 2014 (In Thousands) Commercial and industrial $ 1,061,597 $ 920,072 Owner-occupied commercial 880,643 788,598 Commercial mortgages 966,698 805,459 Construction 245,773 142,497 Residential 259,679 218,329 Consumer 360,249 327,543 3,774,639 3,202,498 Less: Deferred fees, net 8,500 6,420 Allowance for loan losses 37,089 39,426 Net loans $ 3,729,050 $ 3,156,652 Nonaccruing loans aggregated $21.2 million, $24.1 million and $31.0 million at December 31, 2015, 2014 and 2013, respectively. If interest on all such loans had been recorded in accordance with contractual terms, net interest income would have increased by $946,000 in 2015, $800,000 in 2014, and $1.0 million in 2013. The total amounts of loans serviced for others were $130.0 million, $153.3 million and $229.8 million at December 31, 2015, 2014 and 2013, respectively, which consisted of residential first mortgage loans and reverse mortgage loans. We received fees from the servicing of loans of $309,000, $285,000 and $342,000 during 2015, 2014 and 2013, respectively. We record mortgage-servicing rights on our mortgage loan-servicing portfolio. Mortgage servicing rights represent the present value of the future net servicing fees from servicing mortgage loans we acquire or originate. The value of these servicing rights was $481,000 and $321,000 at December 31, 2015 and 2014, respectively. Mortgage loans serviced for others are not included in loans in the accompanying Consolidated Statements of Condition. Changes in the value of these servicing rights resulted in net losses of $160,000 and $98,000 during 2015 and 2014, respectively. Revenues from originating, marketing and servicing mortgage loans as well as valuation adjustments related to capitalized mortgage servicing rights are included in mortgage banking activities, net in the Consolidated Statements of Operations. Accrued interest receivable on loans outstanding was $10.4 million and $8.5 million at December 31, 2015 and 2014, respectively.

Allowance for Loan Losses and C

Allowance for Loan Losses and Credit Quality Information	12 Months Ended
	Dec. 31, 2015
Text Block [Abstract]
Allowance for Loan Losses and Credit Quality Information	6. ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY INFORMATION We maintain an allowance for loan losses and charge losses to this allowance when such losses are realized. We established our allowance for loan losses in accordance with guidance provided in the SEC’s Staff Accounting Bulletin 102 (SAB 102) and FASB ASC 450, Contingencies • Specific reserves for impaired loans • An allowance for each pool of homogenous loans based on historical loss experience • Adjustments for qualitative and environmental factors allocated to pools of homogenous loans • Allowance for model estimation and complexity risk When it is probable that the Bank will be unable to collect all amounts due (interest and principal) in accordance with the contractual terms of the loan agreement, it assigns a specific reserve to that loan, if necessary. Unless loans are well-secured and collection is imminent, loans greater than 90 days past due are deemed impaired and their respective reserves are generally charged-off once the loss has been confirmed. Estimated specific reserves are based on collateral values, estimates of future cash flows or market valuations. We charge loans off when they are deemed to be uncollectible. During the twelve months ended December 31, 2015, net charge-offs totaled $10.1 million or 0.29% of average loans, compared to $5.4 million, or 0.18% of average loans annualized, during the twelve months ended December 31, 2014. A significant portion of the net charge-offs in 2015 was the result of one $9.1 million substandard C&I relationship previously classified as an accruing TDR that was placed in nonaccrual status during the second quarter of 2015. This relationship included net charge-offs of $5.7 million during the twelve months ending December 31, 2015. Allowances for pooled homogeneous loans, that are not deemed impaired, are based on historical net loss experience. Estimated losses for pooled portfolios are determined differently for commercial loan pools and retail loan pools. Commercial loans are pooled into the following segments: commercial, owner-occupied, commercial real estate and construction. Each pool is further segmented by internally assessed risk ratings. Loan losses for commercial loans are estimated by determining the probability of default and expected loss severity upon default. During the twelve months ended December 31, 2015, we increased the look-back period to 20 quarters from 16 quarters used at December 31, 2015 and prior periods. This change in the look-back period resulted in an increase of $1.3 million to the total allowance at December 31, 2015. Loss severity upon default is calculated as the actual loan losses (net of recoveries) on impaired loans in their respective pool during the same time frame. Retail loans are pooled into the following segments: residential mortgage, consumer secured and consumer unsecured loans. Pooled reserves for retail loans are calculated based solely on average net loss rates over the same 20 quarter look-back period. Qualitative adjustment factors consider various current internal and external conditions which are allocated among loan types and take into consideration the following: • Current underwriting policies, staff, and portfolio mix • Internal trends of delinquency, nonaccrual and criticized loans by segment • Risk rating accuracy, control and regulatory assessments/environment • General economic conditions — locally and nationally • Market trends impacting collateral values • A competitive environment as it could impact loan structure and underwriting The above factors are based on their relative standing compared to the period in which historic losses are used in core reserve estimates and current directional trends. Qualitative factors in our model can add or subtract to core reserves. Continued economic improvement and continued refinement of the quantitative model have driven an overall reduction in qualitative factors during the period. The allowance methodology uses a loss emergence period (LEP), which is the period of time between an event that triggers the probability of a loss and the confirmation of the loss. We estimate the commercial LEP to be eight quarters as of December 31, 2015. Further, our residential mortgage and consumer LEP remained at four quarters as of December 31, 2015. We evaluate LEP quarterly for reasonableness and complete a detailed historical analysis of our commercial LEP at least annually. The final component of the allowance for loan losses is a reserve for model estimation and complexity risk. The calculation of this reserve is generally quantitative; however, qualitative estimates of valuations and risk assessment, and methodology judgments are necessary in order to capture factors not already included in other components in our allowance for loan losses methodology. We review the qualitative estimates of valuation factors quarterly and management uses its judgment to make adjustments based on current trends. Our loan officers and risk managers meet at least quarterly to discuss and review the conditions and risks associated with individual problem loans. In addition, various regulatory agencies periodically review our loan ratings and allowance for loan losses and the Bank’s internal loan review department performs loan reviews. The following tables provide an analysis of the allowance for loan losses and loan balances as of and for the year ended December 31, 2015 and December 31, 2014: (In Thousands) Commercial Owner- Commercial Construction Residential Consumer Complexity (1) Total Twelve months ended December 31, 2015 Allowance for loan losses Beginning balance $ 12,837 $ 6,643 $ 7,266 $ 2,596 $ 2,523 $ 6,041 $ 1,520 $ 39,426 Charge-offs (6,303 ) (738 ) (1,135 ) (146 ) (548 ) (3,225 ) — (12,095 ) Recoveries 301 77 222 185 226 957 — 1,968 Provision (credit) for loan losses 4,241 665 (67 ) 852 76 2,183 (510 ) 7,440 Provision for acquired loans 80 23 201 34 4 8 — 350 Ending balance $ 11,156 $ 6,670 $ 6,487 $ 3,521 $ 2,281 $ 5,964 $ 1,010 $ 37,089 Period-end allowance allocated to: Loans individually evaluated for impairment $ 1,164 $ — $ — $ 211 $ 918 $ 199 $ — $ 2,492 Loans collectively evaluated for impairment 9,988 6,648 6,384 3,310 1,360 5,765 1,010 34,465 Acquired loans evaluated for impairment 4 22 103 — 3 — — 132 Ending balance $ 11,156 $ 6,670 $ 6,487 $ 3,521 $ 2,281 $ 5,964 $ 1,010 $ 37,089 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 5,680 $ 1,090 $ 3,411 $ 1,419 $ 15,548 $ 7,664 $ — $ 34,812 Loans collectively evaluated for impairment 930,346 820,911 869,359 213,801 166,252 335,323 — 3,335,992 Acquired nonimpaired loans 112,586 53,954 83,415 27,009 76,929 17,255 — 371,148 Acquired impaired loans 12,985 4,688 10,513 3,544 950 7 — 32,687 Ending balance $ 1,061,597 $ 880,643 $ 966,698 $ 245,773 $ 259,679 $ 360,249 $ — $ 3,774,639 (3) (In Thousands) Commercial Owner- Commercial Construction Residential Consumer Complexity (1) Total Twelve months ended December 31, 2014 Allowance for loan losses Beginning balance $ 12,751 $ 7,638 $ 6,932 $ 3,326 $ 3,078 $ 6,494 $ 1,025 $ 41,244 Charge-offs (3,587 ) (1,085 ) (425 ) (88 ) (811 ) (2,855 ) — (8,851 ) Recoveries 1,611 249 202 242 168 981 — 3,453 Provision (credit) for loan losses 2,062 (159 ) 557 (884 ) 88 1,421 495 3,580 Ending balance $ 12,837 $ 6,643 $ 7,266 $ 2,596 $ 2,523 $ 6,041 $ 1,520 $ 39,426 Period-end allowance allocated to: Loans individually evaluated for impairment $ 3,034 $ 609 $ 319 $ 334 $ 790 $ 231 $ — $ 5,317 Loans collectively evaluated for impairment 9,803 6,034 6,947 2,262 1,733 5,810 1,520 34,109 Ending balance $ 12,837 $ 6,643 $ 7,266 $ 2,596 $ 2,523 $ 6,041 $ 1,520 $ 39,426 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 12,381 $ 2,474 $ 8,335 $ 1,419 $ 15,666 $ 6,376 $ — $ 46,651 ( 2) Loans collectively evaluated for impairment 872,398 743,680 753,451 127,324 184,788 312,539 — 2,994,180 Acquired nonimpaired loans 32,024 40,180 37,697 9,891 17,363 8,619 145,774 Acquired impaired loans 3,269 2,264 5,976 3,863 512 9 15,893 Ending balance $ 920,072 $ 788,598 $ 805,459 $ 142,497 $ 218,329 $ 327,543 $ — $ 3,202,498 (3) (1) Represents the portion of the allowance for loan losses established to account for the inherent complexity and uncertainty of estimates. (2) The difference between this amount and nonaccruing loans represents accruing troubled debt restructured loans which are considered to be impaired loans of $13.6 million at December 31, 2015 and $22.6 million as of December 31, 2014. (3) Ending loan balances do not include deferred costs. Nonaccrual and Past Due Loans Nonaccruing loans are those loans on which the accrual of interest has ceased. We discontinue accrual of interest on originated loans after payments become more than 90 days past due or earlier if we do not expect the full collection of principal and interest in accordance with the terms of the loan agreement. Interest accrued but not collected at the date a loan is placed on nonaccrual status is reversed and charged against interest income. In addition, the accretion of net deferred loan fees is suspended when a loan is placed on nonaccrual status. Subsequent cash receipts are applied either to the outstanding principal balance or recorded as interest income, depending on our assessment of the ultimate collectability of principal and interest. Loans greater than 90 days past due and still accruing are defined as loans contractually past due 90 days or more as to principal or interest payments, but remain in accrual status because they are considered well secured and in process of collection. The following tables show our nonaccrual and past due loans at the dates indicated: At Dec. 31, 2015 30–59 Days 60–89 Days Greater Than Past Due and Total Past And Still Accruing Acquired Nonaccrual Total (In Thousands) Commercial $ 1,686 $ 270 $ 12,355 $ 14,311 $ 1,028,973 $ 12,985 $ 5,328 $ 1,061,597 Owner-occupied 713 217 4,886 5,816 869,048 4,688 1,091 880,643 Commercial mortgages 141 4 288 433 952,426 10,513 3,326 966,698 Construction — — — — 242,229 3,544 — 245,773 Residential 5,263 621 251 6,135 245,307 950 7,287 259,679 Consumer 1,222 36 252 1,510 354,599 7 4,133 360,249 Total (1) $ 9,025 $ 1,148 $ 18,032 $ 28,205 $ 3,692,582 $ 32,687 $ 21,165 $ 3,774,639 % of Total Loans 0.24 % 0.03 % 0.48 % 0.75 % 97.83 % 0.86 % 0.56 % 100.00 % (1) Balances in table above includes $371.1 million in acquired non-impaired loans. At Dec. 31, 2014 30–59 Days 60–89 Days Greater Than Past Due and Total Past And Still Accruing Acquired Nonaccrual Total Loans (In Thousands) Commercial $ 715 $ — $ — $ 715 $ 913,382 $ 3,269 $ 2,706 $ 920,072 Owner-occupied commercial 393 — — 393 783,466 2,264 2,475 788,598 Commercial mortgages 203 — — 203 791,035 5,976 8,245 805,459 Construction — — — — 138,634 3,863 — 142,497 Residential 3,879 604 — 4,483 206,266 512 7,068 218,329 Consumer 1,241 342 4 1,587 322,390 9 3,557 327,543 Total (1) $ 6,431 $ 946 $ 4 $ 7,381 $ 3,155,173 $ 15,893 $ 24,051 $ 3,202,498 % of Total Loans 0.20 % 0.03 % 0.00 % 0.23 % 98.52 % 0.50 % 0.75 % 100.00 % (1) Balances in table above includes $145.8 million in acquired non-impaired loans. Impaired Loans Loans for which it is probable we will not collect all principal and interest due according to contractual terms, which is assessed based on the credit characteristics of the loan and/or payment status, are measured for impairment in accordance with the provisions of SAB 102 and FASB ASC 310, Receivables The following tables provide an analysis of our impaired loans at December 31, 2015 and December 31, 2014: 2015 (In Thousands) Ending Loans with (1) Loan with Related Contractual Average Commercial $ 6,137 $ 951 $ 5,186 $ 1,168 $ 20,206 $ 9,391 Owner-occupied commercial 2,127 1,090 1,037 22 2,947 2,111 Commercial mortgages 4,652 3,410 1,242 103 11,826 7,540 Construction 1,419 — 1,419 211 1,419 1,448 Residential 15,710 9,034 6,676 920 18,655 15,264 Consumer 7,665 6,498 1,167 200 9,353 6,801 Total (2) $ 37,710 $ 20,983 $ 16,727 $ 2,624 $ 64,406 $ 42,555 2014 (In Thousands) Ending Loans with (1) Loan with Related Contractual Average Commercial $ 12,381 $ 580 $ 11,801 $ 3,034 $ 20,924 $ 5,952 Owner-occupied commercial 2,474 1,865 609 609 3,708 4,461 Commercial mortgages 8,335 4,732 3,603 319 14,383 11,005 Construction 1,419 — 1,419 334 1,419 1,013 Residential 15,666 7,068 8,598 790 18,967 17,296 Consumer 6,376 3,557 2,819 231 7,162 5,902 Total $ 46,651 $ 17,802 $ 28,849 $ 5,317 $ 66,563 $ 45,629 (1) Reflects loan balances at or written down to their remaining book balance. (2) The above includes acquired impaired loans totaling $2.9 million in the ending loan balance and $3.5 million in the contractual principal balance. Interest income of $1.6 million and $1.8 million was recognized on impaired loans during 2015 and 2014 respectively. As of December 31, 2015, there were 32 residential loans and 3 commercial loans in the process of foreclosure. The total outstanding balance on the loans was $5.0 million and $675,000, respectively. As of December 31, 2014, there were 36 residential loans and 12 commercial loans in the process of foreclosure. The total outstanding balance on the loans was $4.4 million and $1.1 million, respectively. Reserves On Acquired Nonimpaired Loans In accordance with FASB ASC 310 , Receivables Credit Quality Indicators Below is a description of each of our risk ratings for all commercial loans: Pass Special Mention. Substandard. Doubtful. Loss. Residential and Consumer Loans The residential and consumer loan portfolios are monitored on an ongoing basis using delinquency information and loan type as credit quality indicators. These credit quality indicators are assessed in the aggregate in these relatively homogeneous portfolios. Loans greater than 90 days past due are generally considered nonperforming and placed on nonaccrual status. The following tables provide an analysis of loans by portfolio segment based on the credit quality indicators used to determine the Allowance at December 31: Commercial Credit Exposure Total Commercial(1) Commercial Owner- Occupied Commercial Construction 2015 2014 (In Thousands) 2015 2014 2015 2014 2015 2014 2015 2014 Amount % Amount % Risk Rating: Special mention $ 5,620 $ 4,744 $ 9,535 $ 6,989 $ 12,323 $ 9,065 $ — $ — $ 27,478 $ 20,798 Substandard: Accrual 33,883 42,377 22,901 14,436 2,547 9,167 8,296 1,085 67,627 67,065 Nonaccrual 4,164 1,225 1,090 1,865 3,326 7,927 — — 8,580 11,017 Doubtful/nonaccrual 1,164 3,034 — 609 — 319 — 334 1,164 4,296 Total special mention and substandard 44,831 51,380 33,526 23,899 18,196 26,478 8,296 1,419 104,849 3 % 103,176 4 % Acquired impaired loans 12,985 3,269 4,688 2,264 10,513 5,976 3,544 3,863 31,730 1 % 15,372 1 % Pass 1,003,781 865,423 842,429 762,435 937,989 773,005 233,933 137,215 3,018,132 96 % 2,538,078 95 % Total $ 1,061,597 $ 920,072 $ 880,643 $ 788,598 $ 966,698 $ 805,459 $ 245,773 $ 142,497 $ 3,154,711 100 % $ 2,656,626 100 % (1) Table includes $ 277.0 million in acquired non-impaired loans at December 31, 2015 and $119.8 million at December 31, 2014. Consumer Credit Exposure Total Residential and Consumer(2) Residential Consumer 2015 2014 (In Thousands) 2015 2014 2015 2014 Amount Percent Amount Percent Nonperforming(1) $ 15,548 $ 15,666 $ 7,664 $ 6,376 $ 23,212 4 % $ 22,042 4 % Acquired impaired loans 950 512 7 9 957 — % 521 — % Performing 243,181 202,151 352,578 321,158 595,759 96 % 523,309 96 % Total $ 259,679 $ 218,329 $ 360,249 $ 327,543 $ 619,928 100 % $ 545,872 100 % (1) Includes $13.6 million as of December 31, 2015 and $11.4 million as of December 31, 2014 of troubled debt restructured mortgages and home equity installment loans that are performing in accordance with the loans modified terms and are accruing interest. (2) Total includes acquired non-impaired loans of $94.2 million at December 31, 2015 and $26.0 million at December 31, 2014. Troubled Debt Restructurings (TDR) The balance of TDRs at December 31, 2015 and December 31, 2014 was $24.6 million and $36.2 million, respectively. The balances at December 31, 2015 include approximately $11.0 million of TDRs in nonaccrual status and $13.6 million of TDRs in accrual status compared to $13.6 million of TDRs in nonaccrual status and $22.6 million of TDRs in accrual status at December 31, 2014. Approximately $2.1 million and $4.2 million in related reserves have been established for these loans at December 31, 2015 and December 31, 2014, respectively. A modification is classified as a TDR if both of the following exist: (1) the borrower is experiencing financial difficulty and (2) the Bank has granted a concession to the borrower. Many aspects of the borrower’s financial situation are assessed when determining whether they are experiencing financial difficulty. Concessions may include the reduction of an interest rate at a rate lower than current market rate for a new loan with similar risk, extension of the maturity date, reduction of accrued interest, or principal forgiveness. The assessments of whether a borrower is experiencing (or is likely to experience) financial difficulty and whether a concession has been granted is subjective in nature and management’s judgment is required when determining whether a modification is a TDR. During 2015, the terms of 33 loans were modified in TDRs. Twenty-two modifications were for consumer loans in which nine were discharged bankruptcies, seven were maturity date extensions, five were HELOC conversion, and one was a rate reduction. Ten were residential mortgages in which three were discharged bankruptcies, three were maturity date extensions, two were forbearance agreements, one was a rate reduction, and one was a credit exception for refinance. One commercial loan received a maturity date extension. Our concessions on restructured loans typically consist of forbearance agreements, reduction in interest rates or extensions of maturities. Principal balances are generally not forgiven by us when a loan is modified as a TDR. Nonaccruing restructured loans remain in nonaccrual status until there has been a period of sustained repayment performance, typically six months, and repayment is reasonably assured. The following table presents loans identified as TDRs during the twelve months ended December 31, 2015 and December 31, 2014: (In Thousands) Twelve Twelve Commercial $ — $ 9,356 Owner Occupied Commercial 577 — Commercial mortgages — 3,430 Construction — 1,419 Residential 895 2,062 Consumer 1,615 1,612 $ 3,087 $ 17,879 The TDRs set forth in the table above increased our allowance for loan losses by $18,000 through allocation of a related reserve, and resulted in charge-offs of $166,000 during the twelve months ended December 31, 2015. For the twelve months ended December 31, 2014, the TDRs set forth in the table above increased our allowance for loan losses by $2.2 million through allocation of a related reserve, and resulted in charge-offs of $54,000.

Reverse Mortgage Loans

Reverse Mortgage Loans	12 Months Ended
	Dec. 31, 2015
Mortgage Banking [Abstract]
Reverse Mortgage Loans	7. REVERSE MORTGAGE LOANS Reverse mortgage loans are contracts in which a homeowner borrows against the equity in his/her home and receives cash in one lump sum payment, a line of credit, fixed monthly payments for either a specific term or for as long as the homeowner lives in the home, or a combination of these options. Since reverse mortgages are nonrecourse obligations, the loan repayments are generally limited to the sale proceeds of the borrower’s residence and the mortgage balance consists of cash advanced, interest compounded over the life of the loan and some may include a premium which represents a portion of the shared appreciation in the home’s value, if any, or a percentage of the value of the residence. In July 2011, we purchased 100% of SASCO 2002-RM1’s Class “O” certificates, representing equity ownership of a reverse mortgage securitization trust, for $2.5 million. This securitization was created in 2002 through the purchase of reverse mortgage loans owned by us, as well as an additional lender. As part of this securitization we retained the BBB rated tranche of this securitization and held this instrument as a trading asset. During the third quarter of 2013, we obtained the right to execute a clean-up call on the underlying collateral. This event led us to consolidate the assets and liabilities of the securitization trust, SASCO 2002 RM-1, on our Consolidated Statement of Condition in accordance with ASC 810, Consolidation Our investment in reverse mortgages totaled $24.3 million at December 31, 2015. The portfolio consists of 93 loans with an average borrowers’ age of 94 years old and there is currently significant overcollateralization in the portfolio, as the realizable collateral value (the lower of collectible principal and interest, or appraised value and annual broker price opinion of the home) of $46.8 million exceeds the outstanding book balance at December 31, 2015. Broker price opinions are updated at least annually. Additional broker price opinions are obtained when our quarterly review indicates that a home’s value has increased or decreased by at least 50% during any given period. The carrying value of the reverse mortgages is calculated using a proprietary model that uses the income approach as described in FASB ASC 820-10, Fair Value Measurements and Disclosure To determine the carrying value of these reverse mortgages as of December 31, 2015, we used the proprietary model described above and actual cash flow information to estimate future cash flows. There are three main drivers of cash flows; 1) move-out rates, 2) house price appreciation (HPA) forecasts, and 3) internal rate of return. 1) Move-out rates – We used the actuarial estimates of contract termination provided in the United States Mortality Rates Period Life Table, 2010, published by the Office of the Actuary – Social Security in 2014, adjusted for expected prepayments and relocations which we adopted during 2014. 2) House Price Appreciation – We utilize house price forecasts from various market sources. Based on this information, we forecasted a 2.5% increase in housing prices during 2016 and a 2.0% increase in the following year and thereafter. We believe this forecast continues to be appropriate given the nature of reverse mortgage collateral and historical under-performance to the broad housing market. Annually, during the fourth quarter, current collateral values are updated through broker price opinions. 3) Internal Rate of Return — As of December 31, 2015, the internal rate of return (IRR) of 19.06% was the effective yield required on the life of the portfolio to reduce the net investment to zero at the time the final reverse mortgage contract is liquidated. As of December 31, 2015, the Company’s actuarially estimated cash payments to reverse mortgagors are as follows: Year Ending 2016 $ 594 2017 475 2018 376 2019 294 2020 228 Years 2021 — 2025 529 Years 2026 — 2030 106 Years 2031 — 2035 15 Thereafter 2 Total $ 2,619 This table does not take into consideration cash inflow including payments from mortgagors or payoffs based on contractual terms. The amount of the contract value that would be forfeited if we were not to make cash payments to reverse mortgagors in the future is $5.4 million. The future cash flows depend on the HPA assumptions. If the future changes in collateral value were assumed to be zero, income would decrease by $731,000 for the quarter ended December 31, 2015 with an IRR of 18.07%. If the future changes in collateral value were assumed to be reduced by 1%, income would decrease by $337,000 with an IRR of 18.60%. The net present value of the projected cash flows depends on the IRR used. If the IRR increased by 1%, the net present value would increase by $876,000. If the IRR decreased by 1%, the net present value would decrease by $855,000.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Premises and Equipment	8. PREMISES AND EQUIPMENT Land, office buildings, leasehold improvements and furniture and equipment, at cost, are summarized by major classifications: December 31, 2015 2014 (In Thousands) Land $ 2,325 $ 2,052 Buildings 6,878 4,791 Leasehold improvements 37,123 35,925 Furniture and equipment 31,824 24,644 78,150 67,412 Less: Accumulated depreciation 38,581 32,338 $ 39,569 $ 35,074 Depreciation expense is computed on a straight-line basis over the estimated useful life of the asset. Leasehold improvements are amortized over the term of the lease or the estimated useful life, whichever is shorter. In general, computer equipment, furniture and equipment and building renovations are expensed over three, five and ten years, respectively. We occupy certain premises including some with renewal options and operate certain equipment under noncancelable leases with terms ranging primarily from 1 to 25 years. These leases are accounted for as operating leases. Accordingly, lease costs are expensed as incurred in accordance with FASB ASC 840-20 Operating Leases. (In Thousands) 2016 $ 9,178 2017 8,971 2018 8,931 2019 8,923 2020 8,968 Thereafter 158,050 Total future minimum lease payments $ 203,021

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	9. GOODWILL AND INTANGIBLE ASSETS In accordance with FASB ASC 805, Business Combinations Intangibles—Goodwill and Other The fair value of acquired assets and liabilities, including the resulting goodwill, was based either on quoted market prices or provided by other third-party sources, when available. When third-party information was not available we made good-faith estimates primarily through the use of internal cash flow modeling techniques. The assumptions used in the cash flow modeling are subjective and susceptible to significant changes. Goodwill and other intangible assets with indefinite useful lives are tested for impairment at least annually and charged to results of operations in periods in which the recorded value is more than the estimated fair value. Intangible assets that have finite useful lives will continue to be amortized over their useful lives and are periodically evaluated for impairment. Goodwill totaled $85.2 million at December 31, 2015 and $48.7 million at December 31, 2014. The majority of this goodwill, or $80.1 million, is in the WSFS Bank segment and is the result of a branch acquisition in 2008, the acquisition of Christiana Bank and Trust (CB&T) during 2010, the purchase of Array and Arrow during 2013, the purchase of FNBW in 2014, and the purchase of Alliance Bank in 2015. The Trust and Wealth Management segment also recorded goodwill as a result of the acquisition of CB&T. ASC 350, Intangibles—Goodwill and Other When required, the goodwill impairment test involves a two-step process. The first test is done by comparing the reporting unit’s aggregate fair value to its carrying value. Absent other indicators of impairment, if the aggregate fair value exceeds the carrying value, goodwill is not considered impaired and no additional analysis is necessary. If the carrying value of the reporting unit were to exceed the aggregate fair value, a second test would be performed to measure the amount of impairment loss, if any. To measure any impairment loss, the implied fair value would be determined in the same manner as if the reporting unit were being acquired in a business combination. If the implied fair value of goodwill is less than the recorded goodwill, an impairment charge would be recorded for the difference. Fair value may be determined using market prices, comparison to similar assets, market multiples, discounted cash flow analyses and other variables. Estimated cash flows extend five years into the future and, by their nature, are difficult to estimate over such an extended period of time. Factors that may significantly affect estimates include, but are not limited to, balance sheet growth assumptions, credit losses in our investment and loan portfolios, competitive pressures in our market area, changes in customer base and customer product preferences, changes in revenue growth trends, cost structure, changes in discount rates, conditions in the banking sector, and general economic variables. In accordance with ASU 2015-16 we elected to change our measurement period from December 31 to October 31. As of October 31, 2015, we completed the step one test of the analysis to determine potential goodwill impairment of the WSFS Bank and Trust and Wealth Management segments. The valuation incorporated a market-based analysis and indicated the fair values of our WSFS Bank and Trust and Wealth Management segments were above their carrying amounts. Therefore, in accordance with FASB ASC 350-20-35-6, the second step of the analysis was not required. As of December 31, 2015, we had three operating segments, WSFS Bank, Cash Connect, and Trust & Wealth Management. Our operating segments may contain one or more reporting units depending on economic characteristics, products and customers. At the time we acquire a business, we allocate goodwill to the reporting unit where it will reside based on its relative fair value. Should we have significant business reorganization, we may reallocate the goodwill. For additional information on management reporting, see Note 20 to the Consolidated Financial Statements and Note 2 for additional information on the Goodwill that was recorded during 2015. The following table shows the allocation of goodwill to our reportable operating segments for purposes of goodwill impairment testing: (In Thousands) WSFS Cash Wealth Consolidated December 31, 2013 $ 27,101 $ — $ 5,134 $ 32,235 Changes in Goodwill 46 — — 46 Goodwill from business combinations 16,370 — — 16,370 December 31, 2014 43,517 — 5,134 48,651 Changes in Goodwill 136 — — 136 Goodwill from business combinations 36,425 — — 36,425 December 31, 2015 $ 80,078 $ — $ 5,134 $ 85,212 The adjustments made to goodwill during 2015, reflect a change in the fair value of the loans acquired, accrued expenses, bank-owned life insurance, computer equipment, deferred federal income taxes, and OREO properties during the measurement period for the FNBW acquisition. The fair value of acquired assets and liabilities from FNBW is now considered final. FASB ASC 350, also requires that an acquired intangible asset be separately recognized if the benefit of the intangible asset is obtained through contractual or other legal rights, or if the asset can be sold, transferred, licensed, rented or exchanged, regardless of the acquirer’s intent to do so. During 2015, we recorded intangible assets of $3.1 million due to the acquisition of Alliance Bank. During 2014, we recorded intangible assets of $3.2 million due to the acquisition of FNBW. See Note 2 to the Consolidated Financial Statements for additional information. The following table summarizes other intangible assets: (In Thousands) Gross Accumulated Net December 31, 2015 Core deposits $ 10,246 $ (4,512 ) $ 5,734 CB&T intangible 3,142 (1,181 ) 1,961 Array and Arrow intangibles 2,353 (847 ) 1,506 Mortgage servicing rights 1,430 (949 ) 481 Alliance intangible 511 (110 ) 401 Total other intangible assets $ 17,682 $ (7,599 ) $ 10,083 December 31, 2014 Core deposits $ 7,610 $ (3,321 ) $ 4,289 CB&T intangible 3,142 (985 ) 2,157 Array and Arrow intangibles 2,353 (497 ) 1,856 Mortgage servicing rights 1,455 (815 ) 640 Total other intangible assets $ 14,560 $ (5,618 ) $ 8,942 Core deposits are amortized over their expected lives using the present value of the benefit of the core deposits and either accelerated or straight-line methods of amortization. We recognized amortization expense on other intangible assets of $2.0 million, $1.3 million, and $1.0 million for the years ended December 31, 2015, 2014, and 2013, respectively. The following presents the estimated amortization expense of intangibles: (In Thousands) Amortization 2016 $ 2,010 2017 1,549 2018 1,400 2019 1,238 2020 992 Thereafter 2,894 Total $ 10,083 At December 31, 2015, goodwill and other intangible assets were not considered impaired. Changing economic conditions that may adversely affect our performance and stock price could result in impairment, which could adversely affect earnings in the future.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2015
Banking and Thrift [Abstract]
Deposits	10. DEPOSITS The following is a summary of deposits by category, including a summary of the remaining time to maturity for time deposits: December 31, 2015 2014 (In Thousands) Money market and demand: Noninterest-bearing demand $ 958,238 $ 804,678 Interest-bearing demand 784,619 688,370 Money market 1,090,050 1,066,224 Total money market and demand 2,832,907 2,559,272 Savings 439,918 402,032 Customer certificates of deposit by maturity: Less than one year 200,893 188,922 One year to two years 79,760 36,108 Two years to three years 25,256 16,741 Three years to four years 9,642 6,468 Over four years 17,449 5,063 Total customer time certificates 333,000 253,302 Jumbo certificates of deposit (greater than $100,000), by maturity: Less than one year 180,753 206,370 One year to two years 44,776 23,621 Two years to three years 15,256 10,117 Three years to four years 6,685 3,896 Over four years 6,541 3,667 Total jumbo certificates of deposit 254,011 247,671 Total customer deposits 3,859,836 3,462,277 Brokered deposits less than one year 156,730 186,958 Total deposits $ 4,016,566 $ 3,649,235 Interest expense on deposits by category follows: (In Thousands) Year Ended December 31, 2015 2014 2013 Interest-bearing demand $ 666 $ 611 $ 529 Money market 2,466 1,478 1,123 Savings 289 234 217 Time deposits 3,057 4,060 4,712 Total customer interest expense 6,478 6,383 6,581 Brokered deposits 687 768 599 Total interest expense on deposits $ 7,165 $ 7,151 $ 7,180

Borrowed Funds

Borrowed Funds	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Borrowed Funds	11. BORROWED FUNDS The following is a summary of borrowed funds by type: At or for the twelve months ended: Balance at Period Weighted Maximum Average Weighted December 31, 2015 (Dollars in Thousands) FHLB advances $ 669,514 0.50 % $ 740,681 $ 621,024 0.48 % Federal funds purchased and securities sold under agreements to repurchase 128,200 0.45 135,550 119,290 0.30 Trust preferred borrowings 67,011 2.15 67,011 67,011 2.03 Senior Debt 55,000 6.25 55,000 55,000 6.85 Other borrowed funds 14,486 0.09 16,808 15,227 0.09 December 31, 2014 FHLB advances $ 405,894 0.52 % $ 758,400 $ 600,172 0.40 % Federal funds purchased and securities sold under agreements to repurchase 128,225 0.29 134,875 128,319 0.29 Trust preferred borrowings 67,011 1.97 67,011 67,011 1.97 Senior Debt 55,000 6.25 55,000 55,000 6.85 Reverse mortgage trust bonds payable — — — 1,627 0.97 Other borrowed funds 11,645 0.08 27,088 20,228 0.09 Federal Home Loan Bank Advances Advances from the FHLB with rates ranging from 0.42% to 1.23% at December 31, 2015 are due as follows: (In Thousands) Amount Weighted 2016 $ 597,400 0.47 % 2017 33,315 0.96 2018 38,799 1.10 $ 669,514 0.50 Pursuant to collateral agreements with the FHLB, advances are secured by qualifying loan collateral, qualifying fixed-income securities, FHLB stock and an interest-bearing demand deposit account with the FHLB. As a member of the FHLB, we are required to purchase and hold shares of capital stock in the FHLB in an amount at least equal to 0.10% of our member asset value plus 4.00% of advances outstanding. We were in compliance with this requirement with a stock investment in FHLB of $30.5 million at December 31, 2015 and $23.3 million as of December 31, 2014. This stock is carried on the accompanying Consolidated Statements of Condition at cost, which approximates liquidation value. The increase in FHLB stock was due to the increase in FHLB Advances outstanding. We received dividends on our stock investment in FHLB of $2.2 million and $1.4 million for the years ended December 31, 2015 and 2014, respectively. For additional information regarding FHLB Stock, see Note 18 to the Consolidated Financial Statements. Federal Funds Purchased and Securities Sold Under Agreements to Repurchase During 2015 and 2014, we purchased federal funds as a short-term funding source. At December 31, 2015, we had purchased $128.2 million in federal funds at an average rate of 0.45%. At December 31, 2014, we had purchased $103.2 million in federal funds at an average rate of 0.29%. We had no securities sold under agreements to repurchase at December 31, 2015. Securities sold under agreements to repurchase with the corresponding carrying and fair values of the underlying securities at December 31, 2014 were due as follows: Borrowing Rate Collateral (In Thousands) Carrying Fair Accrued 2014 Over 90 days $ 25,000 2.98 % $ 35,886 $ 35,549 $ 64 Trust Preferred Borrowings In 2005, we issued $67.0 million of aggregate principal amount of Pooled Floating Rate Securities at a variable interest rate of 177 basis points over the three-month LIBOR rate. These securities are callable and have a maturity date of June 1, 2035. Senior Debt In 2012, we issued and sold $55.0 million in aggregate principal amount of 6.25% Senior Notes due 2019 (the Senior Debt). The Senior Debt is unsecured and ranks equally with all of our other present and future unsecured unsubordinated obligations. The senior debt is effectively subordinated to our secured indebtedness and structurally subordinated to the indebtedness of our subsidiaries. At our option, the Senior Debt is callable, in whole or in part, after five years. The Senior Debt matures on September 1, 2019. Other Borrowed Funds Included in other borrowed funds are collateralized borrowings of $14.5 million and $11.6 million at December 31, 2015 and 2014, respectively, consisting of outstanding retail repurchase agreements, contractual arrangements under which portions of certain securities are sold overnight to retail customers under agreements to repurchase. Such borrowings were collateralized by mortgage-backed securities. The average rates on these borrowings were 0.09% and 0.08% at December 31, 2015 and 2014, respectively. Borrower in custody As of December 31, 2015, the Bank had $204.1 million of loans pledged to the Federal Reserve of Philadelphia (FRB). The Bank did not borrow funds from the FRB during 2015.

Stock and Common Stock Warrants

Stock and Common Stock Warrants	12 Months Ended
	Dec. 31, 2015
Text Block [Abstract]
Stock and Common Stock Warrants	12. STOCK AND COMMON STOCK WARRANTS In 2009 we completed a private placement of stock to Peninsula Investment Partners, L.P. (Peninsula), pursuant to which the Company issued and sold 2,586,207 shares of common stock for a total purchase price of $25.0 million, and a 10-year warrant to purchase 387,930 shares of common stock at an exercise price of $9.67 per share. The warrant was immediately exercisable. Total proceeds of $25.0 million were allocated, based on the relative fair value of common stock and common stock warrants, to common stock for $23.5 million and common stock warrants for $1.5 million. During 2014, we entered into an agreement in which the Company repurchased the warrants for $6.3 million. During 2014, the Board of Directors approved a stock buyback program of up to 5% of total outstanding shares of common stock. Related to this authorization, during 2015 the Company repurchased 1,060,137 common shares at an average price of $26.88 per share. Additionally, in 2014 the Company repurchased 349,263 common shares and common share equivalents at an implied price of $25.73 per share. These buybacks included 243,699 common share equivalents related to the repurchase of the 387,930 warrants to purchase common stock issued in conjunction with the 2009 equity offering described in the preceding paragraph. The Company completed this stock buyback program during the fourth quarter of 2015. During 2015, the Board of Directors approved an additional stock buyback program of up to 5% of total outstanding shares of common stock. Related to this authorization, the Company repurchased 92,096 common shares at an average price of $33.74 per share. The Company has approximately 1.4 million shares (or just under 5% of its 29.8 million shares outstanding), remaining to repurchase under its current authorization as of December 31, 2015. All share and per share information has been retroactively adjusted to reflect the Company’s three-for-one stock split in May 2015. See Note 1 to the Consolidated Financial Statements for additional information.

Stockholders' Equity and Regula

Stockholders' Equity and Regulatory Capital	12 Months Ended
	Dec. 31, 2015
Other Liabilities Disclosure [Abstract]
Stockholders' Equity and Regulatory Capital	13. STOCKHOLDERS’ EQUITY AND REGULATORY CAPITAL Savings institutions such as the Bank are subject to regulatory capital requirements administered by various banking regulators. Failure to meet minimum capital requirements could result in certain actions by regulators that could have a material effect on the Company’s financial statements. In July 2013, the Federal Reserve Board approved final rules (the “U.S. Basel III Capital Rules”) establishing a new comprehensive capital framework for U.S. banking organizations. The U.S. Basel III Capital Rules substantially revise the risk-based capital requirements applicable to bank holding companies and depository institutions. The new minimum regulatory capital requirements became effective for the Bank and the Company on January 1, 2015 and include a new minimum common equity Tier 1 capital ratio of 4.50% of risk-weighted assets and raise the Tier 1 capital ratio from 4.00% to 6.00% of risk-weighted assets. The rules also require a current minimum Total capital ratio of 8.00% of risk-weighted assets and a minimum Tier 1 leverage capital ratio of 4.00% of average assets. As of December 31, 2015 and 2014, the Bank was in compliance with regulatory capital requirements and exceeded the amounts required to be considered “well capitalized” as defined in the regulations. The following table presents the capital position of the Bank and the Company as of December 31, 2015 and 2014: Consolidated Bank For Capital Adequacy To Be Well-Capitalized (In Thousands) Amount Percent Amount Percent Amount Percent As of December 31, 2015 Total Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB $ 618,454 13.11 % $ 377,332 8.00 % $ 471,666 10.00 % WSFS Financial Corporation 595,996 12.62 377,948 8.00 N/A N/A Tier 1 Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB 580,735 12.31 282,999 6.00 377,332 8.00 WSFS Financial Corporation 558,278 11.82 283,461 6.00 N/A N/A Common Equity Tier 1 Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB 580,735 12.31 212,249 4.50 306,583 6.50 WSFS Financial Corporation 494,571 10.47 212,596 4.50 N/A N/A Tier 1 Leverage Capital Wilmington Savings Fund Society, FSB 580,735 10.88 213,502 4.00 266,877 5.00 WSFS Financial Corporation 558,278 10.44 213,849 4.00 N/A N/A As of December 31, 2014 Total Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB $ 531,209 13.83 % $ 307,217 8.00 % $ 384,022 10.00 % WSFS Financial Corporation 533,300 13.86 307,739 8.00 N/A N/A Core Capital (to adjusted tangible assets) Wilmington Savings Fund Society, FSB 491,229 10.25 191,753 4.00 239,692 5.00 WSFS Financial Corporation 493,534 10.56 186,954 4.00 N/A N/A Tangible Capital (to tangible assets) Wilmington Savings Fund Society, FSB 491,229 10.25 71,907 1.50 N/A N/A WSFS Financial Corporation 493,534 10.56 70,108 1.50 N/A N/A Tier 1 Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB 491,229 12.79 153,609 4.00 230,413 6.00 WSFS Financial Corporation 493,534 12.83 153,869 4.00 N/A N/A The December 31, 2015 capital ratios presented above were determined in accordance with the Basel III Capital Rules while the December 31, 2014 capital ratios were calculated under the prior capital standards. The Holding Company As of December 31, 2015, our capital structure includes one class of stock, $0.01 par common stock outstanding with each share having equal voting rights. In 2005, WSFS Capital Trust III, our unconsolidated subsidiary, issued Pooled Floating Rate Securities at a variable interest rate of 177 basis points over the three-month LIBOR rate with a scheduled maturity of June 1, 2035. The par value of these securities is $2.0 million and the aggregate principal is $67.0 million. The proceeds from the issue were invested in Junior Subordinated Debentures the Company issued. These securities are treated as borrowings with interest included in interest expense on the Consolidated Statements of Operations. At December 31, 2015, the coupon rate of the WSFS Capital Trust III securities was 2.18%. The effective rate will vary due to fluctuations in interest rates. When infused into the Bank, the Trust Preferred Securities issued in 2005 qualify as Tier 1 capital. The Bank is prohibited from paying any dividend or making any other capital distribution if, after making the distribution, the Bank would be undercapitalized within the meaning of the Prompt Corrective Action regulations. At December 31, 2015, $26.4 million in cash remains at the holding company to support the parent company’s needs. Pursuant to federal laws and regulations, our ability to engage in transactions with affiliated corporations, including the loan of funds to, or guarantee of the indebtedness of, an affiliate, is limited.

Associate (Employee) Benefit Pl

Associate (Employee) Benefit Plans	12 Months Ended
	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Associate (Employee) Benefit Plans	14. ASSOCIATE (EMPLOYEE) BENEFIT PLANS Associate 401(k) Savings Plan Certain subsidiaries of ours maintain a qualified plan in which Associates may participate. Participants in the plan may elect to direct a portion of their wages into investment accounts that include professionally managed mutual and money market funds and our common stock. Generally, the principal and related earnings are tax deferred until withdrawn. We match a portion of the Associates’ contributions. As a result, our total cash contributions to the plan on behalf of our Associates resulted in an expense of $2.6 million, $2.2 million, and $2.6 million for 2015, 2014, and 2013, respectively. All contributions are invested in accordance with the Associates’ selection of investments. If Associates do not designate how discretionary contributions are to be invested, 100% will be invested in a balanced fund. Associates may generally make transfers to various other investment vehicles within the plan. The plan’s yearly activity includes net sales of 25,000 and 2,000 of our common stock in 2015 and 2014 respectively and net purchases of 19,000 shares of our common stock during 2013. Postretirement Benefits We share certain costs of providing health and life insurance benefits to eligible retired Associates and their eligible dependents. Previously, all Associates were eligible for these benefits if they reached normal retirement age while working for us. Effective March 31, 2014, we changed the eligibility of this plan to include only those Associates who have achieved ten years of service with us as of March 31, 2014. We account for our obligations under the provisions of FASB ASC 715, Compensation — Retirement Benefits ASC 715 requires that we recognize the funded status of our defined benefit postretirement plan in our statement of financial position, with a corresponding adjustment to accumulated other comprehensive income, net of tax. The adjustment to accumulated other comprehensive income at adoption represented the net unrecognized actuarial losses and unrecognized transition obligation remaining from the initial adoption of ASC 715, all of which were previously netted against the plan’s funded status in our statement of financial position pursuant to the provisions of ASC 715. These amounts will be subsequently recognized as net periodic pension costs pursuant to our historical accounting policy for amortizing such amounts. Further, actuarial gains and losses that arise in subsequent periods, and are not recognized as net periodic pension cost in the same periods, will be recognized as a component of other comprehensive income. Those amounts will be subsequently recognized as a component of net periodic pension cost on the same basis as the amounts recognized in accumulated other comprehensive income at adoption of ASC 715. In accordance with ASC 715, during 2016 we expect to recognize $64,000 of amortization related to the net actuarial gain, and $76,000 relating to the net transition obligation. The following disclosures relating to postretirement benefits were measured at December 31: (In Thousands) 2015 2014 2013 Change in benefit obligation: Benefit obligation at beginning of year $ 2,266 $ 4,560 $ 4,478 Service cost 59 195 343 Interest cost 89 195 176 Actuarial gain (502 ) (1,611 ) (288 ) Benefits paid (107 ) (125 ) (149 ) Plan change — (948 ) — Benefit obligation at end of year $ 1,805 $ 2,266 $ 4,560 Change in plan assets: Fair value of plan assets at beginning of year $ — $ — $ — Employer contributions 107 125 149 Benefits paid (107 ) (125 ) (149 ) Fair value of plan assets at end of year $ — $ — $ — Funded status: Unfunded status $ (1,805 ) $ (2,266 ) $ (4,560 ) Total (income) loss recognized in other comprehensive income (1,271 ) (1,367 ) 1,221 Net amount recognized $ (3,076 ) $ (3,633 ) $ (3,339 ) Components of net periodic benefit cost: Service cost $ 59 $ 195 $ 343 Interest cost 89 195 177 Amortization of transition obligation (76 ) (57 ) — Net (gain) loss recognition (20 ) 86 78 Net periodic benefit cost $ 52 $ 419 $ 598 Assumptions used to determine net periodic benefit cost: Discount rate 4.00 % 5.00 % 4.00 % Health care cost trend rate 5.00 % 5.00 % 5.00 % Sensitivity analysis of health care cost trends: Effect of +1% on service cost plus interest cost $ — $ — $ — Effect of –1% on service cost plus interest cost — — — Effect of +1% on APBO — — — Effect of –1% on APBO — — — Assumptions used to value the Accumulated Postretirement Benefit Obligation (APBO): Discount rate 4.25 % 4.00 % 5.00 % Health care cost trend rate 5.00 % 5.00 % 5.00 % Ultimate trend rate 5.00 % 5.00 % 5.00 % Year of ultimate trend rate 2016 2015 2014 Estimated future benefit payments: The following table shows the expected future payments for the next 10 years: (In Thousands) During 2016 $ 62 During 2017 64 During 2018 65 During 2019 67 During 2020 68 During 2021 through 2025 404 $ 730 We assume medical benefits will increase at an average rate of less than 10% per annum. The costs incurred for retirees’ health care are limited since certain current and all future retirees are restricted to an annual medical premium cap indexed (since 1995) by the lesser of 4% or the actual increase in medical premiums paid by us. For 2015, this annual premium cap amounted to $3,158 per retiree. We estimate that we will contribute approximately $3,285 per retiree to the plan during fiscal 2016. We have five additional plans which are no longer being provided to Associates: (1) a Supplemental Pension Plan with a corresponding liability of $810,000 and $856,000 for December 31, 2015 and December 31, 2014, respectively; (2) an Early Retirement Window Plan with a corresponding liability of $193,000 and $179,000 for December 31, 2015 and December 31, 2014, respectively; (3) a Director’s Plan with a corresponding liability of $43,000 and $60,000 for December 31, 2015 and December 31, 2014, respectively; (4) a Supplemental Executive Retirement Plan with a corresponding liability of $1.4 million and $1.5 million for December 31, 2015 and December 31, 2014, respectively, and; (5) a Post-Retirement Medical Plan with a corresponding liability of $130,000 and $147,000 for December 31, 2015 and December 31, 2014, respectively.

Taxes on Income

Taxes on Income	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Taxes on Income	15. TAXES ON INCOME The Company and its subsidiaries file a consolidated federal income tax return and separate state income tax returns. Our income tax provision consists of the following: Year Ended December 31, 2015 2014 2013 (In Thousands) Current income taxes: Federal taxes $ 24,237 $ 21,252 $ 22,416 State and local taxes 3,805 3,215 2,759 Deferred income taxes: Federal taxes 2,283 (5,575 ) 875 State and local taxes (52 ) (89 ) (120 ) Total $ 30,273 $ 18,803 $ 25,930 Current federal income taxes include taxes on income that cannot be offset by net operating loss carryforwards. Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The following is a summary of the significant components of our deferred tax assets and liabilities as of December 31, 2015 and 2014: (In Thousands) 2015 2014 Deferred tax assets: Unrealized losses on available-for-sale securities $ 57 $ — Allowance for loan losses 12,981 13,799 Purchase accounting adjustments—loans 4,597 3,016 Reserves and other accruals 14,147 10,091 Deferred gains 888 761 Net operating losses 785 1,104 Tax credits 1,664 309 Reverse mortgages 3,290 3,707 Total deferred tax assets before valuation allowance 38,409 32,787 Less: valuation allowance — — Total Deferred tax assets $ 38,409 $ 32,787 Deferred tax liabilities: Unrealized gains on available-for-sale securities $ — $ (1,626 ) Bad debt recapture (954 ) (1,233 ) Accelerated depreciation (1,806 ) (1,915 ) Other (344 ) (267 ) Prepaid expenses (371 ) (741 ) Deferred loan costs (1,209 ) (1,904 ) Intangibles (4,876 ) (3,349 ) Total deferred tax liabilities (9,560 ) (11,035 ) Net deferred tax asset $ 28,849 $ 21,752 Included in the table above is the effect of certain temporary differences for which no deferred tax expense or benefit was recognized. In 2015, such items consisted primarily of $57,000 of unrealized losses on certain investments in debt and equity securities accounted for under ASC 320 along with $223,000 of unrealized gains related to postretirement benefit obligations accounted for under ASC 715. In 2014, they consisted primarily of $1.6 million of unrealized gains on certain investments in debt and equity securities along with $258,000 related to postretirement benefit obligations. Based on our history of prior earnings and our expectations of the future, it is anticipated that operating income and the reversal pattern of our temporary differences will, more likely than not, be sufficient to realize a net deferred tax asset of $28.8 million at December 31, 2015. As a result of the acquisition of Alliance on October 9, 2015, we recorded a net deferred tax asset (DTA) of $7.6 million. Included in this DTA are $1.1 million of federal net operating losses (NOL) carryovers, $2.6 million of state NOL carryovers and $1.7 million of alternative minimum tax credit carryovers. Such federal NOL’s expire beginning in 2035 while the state NOLs expire in 2017. The tax credits have an indefinite life. Although there is a limitation on the amount of Alliance’s net operating loss deduction and tax credit utilization (and certain other deductions) that we can utilize each tax year, we expect to fully utilize these tax attributes and, therefore, no valuation allowance has been recorded against the DTA. Retained earnings at December 31, 2015 include approximately $7.1 million, representing prior Alliance bad debt deductions, for which no deferred income taxes have been provided. As a result of the acquisition of the First National Bank of Wyoming (FNBW) in 2014, we recorded a net DTA of $3.1 million. Included in this DTA are $1.9 million of NOL carryovers and $309,000 of alternative minimum tax credit carryovers. Such NOLs expire beginning in 2034, while the tax credits have an indefinite life. Although there is a limitation on the amount of FNBW’s net operating loss deduction (and certain other deductions) that we can utilize each tax year, we expect to fully utilize these tax attributes and, therefore, no valuation allowance has been recorded against the DTA. A reconciliation showing the differences between our effective tax rate and the U.S. Federal statutory tax rate is as follows: Year Ended December 31, 2015 2014 2013 Statutory federal income tax rate 35.0 % 35.0 % 35.0 % State tax, net of federal tax benefit 2.9 2.8 2.4 Nondeductible acquisition costs 0.7 0.2 — Tax-exempt interest (1.9 ) (2.0 ) (1.2 ) Bank-owned life insurance income (0.3 ) (0.3 ) (0.1 ) Incentive stock option and other nondeductible compensation — — 0.3 Tax benefits from previously unconsolidated subsidiary (SASCO) — (9.4 ) — Federal tax credits, net of amortization (0.5 ) (0.5 ) (0.7 ) Other 0.2 0.1 (0.1 ) Effective tax rate 36.1 % 25.9 % 35.6 % As a result of the consolidation for accounting purposes of the SASCO reverse mortgage securitization trust during 2013, a deferred tax asset of approximately $4.9 million was recorded. In addition we recorded a $1.8 million deferred tax liability associated with our investment in SASCO. However, because SASCO was not consolidated for income tax purposes, a full valuation allowance was also recorded on this DTA due to the uncertainty of its realization, as the realization was dependent on future taxable income. On January 27, 2014 the separate company SASCO tax structure was eliminated, which permits tax consolidation within the Bank’s tax return filings on a prospective basis. At this date, the uncertainty surrounding the realization of the DTA was eliminated. Accordingly, we removed the $4.9 million valuation allowance and eliminated the $1.8 million deferred tax liability, which resulted in an overall income tax benefit of $6.7 million in 2014. Finally, SASCO has $1.1 million of remaining Federal net operating losses that the Bank acquired upon SASCO’s liquidation. Such NOLs expire beginning in 2030 and, due to IRS limitations, $110,000 are being utilized each year. Accordingly, we fully expect to utilize all of these NOLs. As of December 31, 2015, we have federal and state NOLs of $1.7 million and $2.6 million, respectively. Such NOLs will begin to expire after 2033 and 2017, respectively if not utilized. In addition, we have federal alternative minimum tax credit carryovers of $1.7 million as of December 31, 2015 that have an indefinite life. We account for income taxes in accordance with FASB Accounting Standards Codification (ASC) 740, Income Taxes Accounting for Income Taxes Accounting for Uncertainty in Income Taxes an interpretation of FASB Statement 109 We record interest and penalties on potential income tax deficiencies as income tax expense. Federal tax years 2012 through 2015 remain subject to examination as of December 31, 2015, while tax years 2012 through 2015 remain subject to examination by state taxing jurisdictions. During 2013, the audit of our 2010 federal tax return was completed by the IRS. We recorded a $186,000 tax benefit as a result of settling this audit. No federal income tax return examinations are currently in process; however, Pennsylvania is currently examining our 2012 state tax return. We do not expect to record or realize any material unrecognized tax benefits during 2016. ASC 740 prescribes a minimum probability threshold that a tax position must meet before a financial statement benefit is recognized. We recognize, when applicable, interest and penalties related to unrecognized tax benefits in the provision for income taxes in the financial statements. Assessment of uncertain tax positions under ASC 740 requires careful consideration of the technical merits of a position based on our analysis of tax regulations and interpretations. There are no longer any unrecognized tax benefits related to ASC 740 as of December 31, 2015 nor has there been any unrecognized tax benefit activity since December 31, 2012. As a result of the adoption of ASU No. 2014-01, “ Investments-Equity Method and Joint Ventures: Accounting for Investments in Qualified Affordable Housing Projects The amount of affordable housing tax credits, amortization and tax benefits recorded as income tax expense for the year ended December 31, 2015 were $2.0 million, $1.9 million and $293,000, respectively. The carrying value of the investment in affordable housing credits is $12.0 million at December 31, 2015, compared to $13.0 million at December 31, 2014.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	16. STOCK-BASED COMPENSATION Our Stock Incentive Plans provide for the granting of stock options, stock appreciation rights, performance awards, restricted stock and restricted stock unit awards, deferred stock units, and other awards that are payable in or valued by reference to our common shares. The number of shares reserved for issuance under our 2013 Incentive Plan (2013 Plan) is 2,096,535. At December 31, 2015, there were 946,146 shares available for future grants under the 2013 Plan. Generally, all awards become exercisable immediately in the event of a change in control, as defined within the Stock Incentive Plans. Total stock-based compensation expense recognized was $3.2 million ($2.2 million after tax) for 2015, $3.7 million ($2.6 million after tax) for 2014, and $3.2 million ($2.5 million after tax) for 2013. Stock-based compensation expense related to awards granted to Associates is recorded in salaries, benefits and other compensation; expense related to awards granted to directors is recorded in other operating expense. Stock Options Stock options are granted with an exercise price not less than the fair market value of our common stock on the date of the grant. With the exception of certain Non-Plan Stock Options (as defined below), all stock options granted during 2015, 2014 and 2013 vest in 25% per annum increments, start to become exercisable one year from the grant date and expire between five and seven years from the grant date. We issue new shares upon the exercise of options. We determine the grant date fair value of stock options using the Black-Scholes option-pricing model. The model requires the use of numerous assumptions, many of which are subjective. We use the simplified method provided for in Staff Accounting Bulletin (SAB) Topic 14.D.2 to estimate the expected term of options as we believe our historical share option exercise experience is not sufficient to provide a reasonable basis upon which to estimate expected term. Other significant assumptions to determine 2015, 2014 and 2013 grant date fair value included volatility measured using the fluctuation in month end closing stock prices over a period which corresponds with the average expected option life; a weighted-average risk-free rate of return (zero coupon treasury yield); and a dividend yield indicative of our current dividend rate. The assumptions for options issued during 2015, 2014, and 2013 are presented below: 2015 2014 2013 Expected term (in years) 4.9 4.9 3.9 Volatility 25.0 % 29.0 % 30.7 % Weighted-average risk-free interest rate 1.54 % 0.97 % 0.50 % Dividend yield 0.76 % 0.67 % 1.01 % On April 25, 2013 stockholders approved a change in future compensation for Mark A. Turner, President and CEO. As a result, Mr. Turner was granted 750,000 non-statutory stock options (“Non-Plan Stock Options’) with a longer and slower vesting schedule than our standard options, 40% vesting after the second year and 20% vesting in each of the following three years. Additionally, these options were awarded at an exercise price of 20% over the December 2012 market value (the date on which framework of the plan was decided). Upon the grant, Mr. Turner is no longer eligible to receive grants under any of our other stock based award programs for a period of five years. The Black-Scholes option-pricing model was used to determine the grant date fair value of the options. Significant assumptions used in the model included a weighted-average risk-free rate of return (zero coupon treasury yield) of 0.76%; an expected option life of five years; an expected stock price volatility of 40.5%; and a dividend yield of 1.01%. Additionally, in 2013, 450,000 incentive stock options were issued to certain executive officers of the Company under the 2013 Plan. These options have the same vesting schedule and exercise price as the Non-Plan Stock Options granted to Mr. Turner. The Black-Scholes option-pricing model with the same assumptions as the Non-Plan Stock Options was used to determine the grant date fair value of the options. A summary of the status of our options (including Non-Plan Stock Options) as of December 31, 2015, and changes during the year, is presented below: 2015 Shares Weighted- Weighted- Aggregate Stock Options: Outstanding at beginning of year 1,984,035 $ 16.38 4.30 $ 18,444 Granted 73,728 26.24 Exercised (262,512 ) 15.42 Forfeited (147,373 ) 17.23 Outstanding at end of year 1,647,878 17.08 3.74 25,175 Nonvested at end of year 1,028,142 17.58 3.99 15,200 Exercisable at end of year 619,736 16.26 $ 3.33 9,975 The weighted-average fair value of options granted was $5.73 in 2015, $5.78 in 2014, and $4.65 in 2013. The aggregate intrinsic value of options exercised was $3.0 million in 2015, $2.4 million in 2014, and $2.7 million in 2013. The following table provides information about our nonvested stock options outstanding at December 31, 2015: 2015 Shares Weighted- Weighted- Stock Options: Nonvested at beginning of period 1,729,143 $ 16.67 $ 4.76 Granted 73,728 26.24 5.73 Vested (674,948 ) 16.44 4.75 Forfeited (99,781 ) 17.35 4.81 Nonvested at end of period 1,028,142 $ 17.58 $ 4.85 The total amount of unrecognized compensation cost related to nonvested stock options as of December 31, 2015 was $3.2 million. The weighted-average period over which the expense is expected to be recognized is 2.2 years. Restricted Stock and Restricted Stock Units Restricted stock awards (RSAs) and restricted stock units (RSUs) are granted at no cost to the recipient and generally vest over a four year period. RSA recipients are entitled to voting rights and generally entitled to dividends on the common stock during the vesting period. The fair value of RSAs and RSUs is equal to the fair value of the Company’s common stock on the date of grant. We recognize the expense related to RSAs and RSUs granted to Associates into salaries, benefits and other compensation expense and granted to directors into other operating expense on an accrual basis over the requisite service period for the entire award. When we award restricted stock to individuals from whom we may not receive services in the future, we recognize the expense of restricted stock grants when we make the award, instead of amortizing the expense over the vesting period of the award. Effective January 3, 2011, the Board approved a plan in which Marvin N. Schoenhals, Chairman of the Board, was granted 66,750 RSA’s with a five-year performance vesting schedule starting at the end of the second year following the grant date. These RSAs are subject to vesting in whole or in part based on the role that Mr. Schoenhals plays in establishing new business over a two year period of time that achieves over a two year period a result of at least a 50% return on investment of the cost of the restricted stock. We recognized compensation expense of $256,000 related to this award in 2015. The Long-Term Performance-Based Restricted Stock Unit program (Long-Term Program) provided for awards up to an aggregate of 233,400 RSUs to participants, only after the achievement of targeted levels of return on assets (ROA) in any year through 2013. During 2013, the company achieved the 1.00% ROA performance level. In accordance with the Long-Term Program, the Company issued 108,456 RSUs to the plan’s participants in 2014. The RSUs vest in 25% increments over four years and we recognize expense over the implicit service period associated with the performance condition. During 2015, we recognized $380,000 of compensation expense related to this program. The weighted-average fair value of RSUs and RSAs granted was $26.13 in 2015, $23.72 in 2014, and $15.83 in 2013. The total amount of compensation cost to be recognized relating to nonvested restricted stock, including performance awards, as of December 31, 2015, was $1.9 million. The weighted-average period over which the cost is expected to be recognized is 2.5 years. The following table summarizes the Company’s RSAs and RSUs, including performance awards, and changes during the year: Units (in whole) Weighted Average Grant-Date Fair Balance at December 31, 2014 252,615 $ 10.11 Granted 37,986 26.13 Vested (106,434 ) 12.17 Forfeited (12,333 ) 6.92 Balance at December 31, 2015 171,834 $ 12.60 The total fair value of RSUs and RSAs that vested was $1.3 million in 2015, $1.2 million in 2014, and $1.2 million in 2013.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	17. COMMITMENTS AND CONTINGENCIES Data Processing Operations We have entered into contracts to manage our network operations, data processing and other related services. The projected amounts of future minimum payments contractually due (in thousands) are as follows: Year Amount 2016 $ 4,962 2017 4,107 2018 3,367 2019 3,396 2020 3,462 The expenses for data processing and operations for the year ending December 31, 2015 were $5.9 million, compared to $6.1 million for the year ended December 31, 2014 and $5.9 million for the year ended December 31, 2013. Legal Proceedings In the ordinary course of business, we are subject to legal actions that involve claims for monetary relief. For additional information regarding legal proceedings, see Note 23 to the Consolidated Financial Statements. Financial Instruments With Off-Balance Sheet Risk We are a party to financial instruments with off-balance sheet risk in the normal course of business primarily to meet the financing needs of our customers. To varying degrees, these financial instruments involve elements of credit risk that are not recognized in the Consolidated Statement of Condition. Exposure to loss for commitments to extend credit and standby letters of credit written is represented by the contractual amount of those instruments. We generally require collateral to support such financial instruments in excess of the contractual amount of those instruments and use the same credit policies in making commitments as we do for on-balance sheet instruments. The following represents a summary of off-balance sheet financial instruments at year-end: December 31, 2015 2014 (In Thousands) Financial instruments with contract amounts which represent potential credit risk: Construction loan commitments $ 149,119 $ 99,917 Commercial mortgage loan commitments 22,393 16,110 Commercial loan commitments 506,615 393,028 Commercial owner-occupied commitments 40,052 33,302 Commercial standby letters of credit 49,832 47,667 Residential mortgage loan commitments 2,218 22,617 Consumer loan commitments 189,392 168,391 At December 31, 2015, we had total commitments to extend credit of $959.6 million. Commitments for consumer lines of credit were $189.4 million of which, $173.8 million were secured by real estate. Residential mortgage loan commitments generally have closing dates within a one-month period but can be extended to six months. Not reflected in the table above are commitments to sell residential mortgages of $90.3 million and $34.6 million at December 31, 2015 and 2014, respectively. Commitments provide for financing on predetermined terms as long as the customer continues to meet specific criteria. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being completely drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. We evaluate each customer’s creditworthiness and obtain collateral based on our credit evaluation of the counterparty. Indemnifications Secondary Market Loan Sales Derivatives and Hedging (ASC:815) We generally do not sell loans with recourse, except for standard loan sale contract provisions covering violations of representations and warranties and, under certain circumstances, early payment default by the borrower. These are customary repurchase provisions in the secondary market for residential mortgage loan sales. These provisions may include either an indemnification from loss or the repurchase of the loans. Repurchases and losses have been rare and no provision is made for losses at the time of sale. There was one repurchase totaling $385,000 for the year ended December 31, 2015 and two repurchases totaling $354,000 for the year ended December 31, 2014. Swap Guarantees. At December 31, 2015, there were 119 variable-rate to fixed-rate swap transactions between the third-party financial institutions and our customers. The initial notional aggregated amount was approximately $481.6 million, with maturities ranging from under one year to ten years. The aggregate fair value of these swaps to the customers was a liability of $18.1 million as of December 31, 2015, with all 119 swaps, in paying positions to a third party. We had no reserves for the swap guarantees as of December 31, 2015. At December 31, 2014, there were 101 variable-rate to fixed-rate swap transactions between the third-party financial institutions and our customers. The initial notional aggregated amount was approximately $417.9 million, with maturities ranging from three months to eleven years. The aggregate fair value of these swaps to the customers was a liability of $16.5 million as of December 31, 2014, of which 99 swaps, with a liability of $16.5 million, were in paying positions to a third party. We had no reserves for the swap guarantees as of December 31, 2014.

Fair Value Disclosures

Fair Value Disclosures	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Disclosures	18. FAIR VALUE DISCLOSURES Fair Value of Financial Assets and Liabilities ASC 820-10 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820-10 establishes a fair value hierarchy that prioritizes the use of inputs used in valuation methodologies into the following three levels: Level 1: Inputs to the valuation methodology are quoted prices, unadjusted, for identical assets or liabilities in active markets. A quoted price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available. Level 2: Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets; inputs to the valuation methodology include quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs to the valuation methodology that are derived principally from or can be corroborated by observable market data by correlation or other means. Level 3: Inputs to the valuation methodology are unobservable and significant to the fair value measurement. Level 3 assets and liabilities include financial instruments whose value is determined using discounted cash flow methodologies, as well as instruments for which the determination of fair value requires significant management judgment or estimation. The following tables present financial instruments carried at fair value as of December 31, 2015 and December 31, 2014 by valuation hierarchy (as described above): (In Thousands) Description Quoted Prices in Significant Significant Total Fair Value Assets measured at fair value on a recurring basis: Available-for-sale securities: CMO $ — $ 251,488 $ — $ 251,488 FNMA MBS — 318,471 — 318,471 FHLMC MBS — 99,442 — 99,442 GNMA MBS — 20,714 — 20,714 GSE — 30,914 30,914 Total assets measured at fair value on a recurring basis — 721,029 — 721,029 Assets measured at fair value on a nonrecurring basis: Other real estate owned $ — $ — $ 5,080 $ 5,080 Loans held-for-sale — 41,807 — 41,807 Impaired loans — — 35,086 35,086 Total assets measured at fair value on a nonrecurring basis $ — $ 41,807 $ 40,166 $ 81,973 Description Quoted Significant (Level 2) Significant Inputs (Level 3) Total Fair Value Assets measured at fair value on a recurring basis: Available-for-sale securities: CMO $ — $ 192,932 $ — $ 192,932 FNMA MBS — 292,553 — 292,553 FHLMC MBS — 146,882 — 146,882 GNMA MBS — 77,797 — 77,797 GSE — 29,960 — 29,960 Total assets measured at fair value on a recurring basis $ — $ 740,124 $ — $ 740,124 Assets measured at fair value on a nonrecurring basis: Other real estate owned $ — $ — $ 5,734 $ 5,734 Loans held-for-sale — 28,508 — 28,508 Impaired loans — — 41,334 41,334 Total assets measured at fair value on a nonrecurring basis $ — $ 28,508 $ 47,068 $ 75,576 There were no transfers between Level 1 and Level 2 of the fair value hierarchy during 2015 and no material liabilities measured at fair value as of December 31, 2015 and December 31, 2014. Fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon internally developed models or obtained from third parties that primarily use, as inputs, observable market-based parameters. Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments may include unobservable parameters. Our valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While we believe our valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Available-for-sale securities As of December 31, 2015 securities classified as available-for-sale are reported at fair value using Level 2 inputs. Included in the Level 2 total are approximately $30.9 million in U.S. Treasury Notes and Federal Agency debentures, and $690.1 million in Federal Agency MBS. We believe that this Level 2 designation is appropriate for these securities under ASC 820-10 as, with almost all fixed income securities, none are exchange traded, and all are priced by correlation to observed market data. For these securities we obtain fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, U.S. government and agency yield curves, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and the security’s terms and conditions, among other factors. Other real estate owned Other real estate owned consists of loan collateral which has been repossessed through foreclosure or other measures. Initially, foreclosed assets are recorded at the lower of the loan balance or fair value of the collateral less estimated selling costs. Subsequent to foreclosure, valuations are updated periodically and the assets may be marked down further, reflecting a new cost basis. The fair value of our real estate owned was estimated using Level 3 inputs based on appraisals obtained from third parties. Loans held-for-sale The fair value of our loans held-for-sale is based upon estimates using Level 2 inputs. These inputs are based upon pricing information obtained from secondary markets and brokers and applied to loans with similar interest rates and maturities. Impaired loans We evaluate and value impaired loans at the time the loan is identified as impaired, and the fair values of such loans are estimated using Level 3 inputs in the fair value hierarchy. Each loan’s collateral has a unique appraisal and management’s discount of the value is based on the factors unique to each impaired loan. The significant unobservable input in determining the fair value is management’s subjective discount on appraisals of the collateral securing the loan, which range from 10% — 50%. Collateral may consist of real estate and/or business assets including equipment, inventory and/or accounts receivable and the value of these assets is determined based on the appraisals by qualified licensed appraisers hired by us. Appraised and reported values may be discounted based on management’s historical knowledge, changes in market conditions from the time of valuation, estimated costs to sell, and/or management’s expertise and knowledge of the client and the client’s business. Impaired loans, which are measured for impairment by either calculating the expected future cash flows discounted at the loan’s effective interest rate or determining the fair value of the collateral for collateral dependent loans has a gross amount of $37.7 million and $46.7 million at December 31, 2015 and December 31, 2014, respectively. The valuation allowance on impaired loans was $2.6 million as of December 31, 2015 and $5.3 million as of December 31, 2014. Fair Value of Financial Instruments The reported fair values of financial instruments are based on a variety of factors. In certain cases, fair values represent quoted market prices for identical or comparable instruments. In other cases, fair values have been estimated based on assumptions regarding the amount and timing of estimated future cash flows that are discounted to reflect current market rates and varying degrees of risk. Accordingly, the fair values may not represent actual values of the financial instruments that could have been realized as of period-end or that will be realized in the future. The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: Cash and cash equivalents For cash and short-term investment securities, including due from banks, federal funds sold or purchased under agreements to resell and interest-bearing deposits with other banks, the carrying amount is a reasonable estimate of fair value. Investment securities Fair value is estimated using quoted prices for similar securities, which we obtain from a third party vendor. We utilize one of the largest providers of securities pricing to the industry and management periodically assesses the inputs used by this vendor to price the various types of securities owned by us to validate the vendor’s methodology. Loans held-for sale Loans held-for- sale are carried at their fair value (see discussion earlier in this note). Loans Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type: commercial, commercial mortgages, construction, residential mortgages and consumer. For loans that reprice frequently, the book value approximates fair value. The fair values of other types of loans are estimated by discounting expected cash flows using the current rates at which similar loans would be made to borrowers with comparable credit ratings and for similar remaining maturities. The fair value of nonperforming loans is based on recent external appraisals of the underlying collateral. Estimated cash flows, discounted using a rate commensurate with current rates and the risk associated with the estimated cash flows, are utilized if appraisals are not available. This technique does not contemplate an exit price. Reverse mortgage loans The fair value of our investment in reverse mortgages is based on the net present value of estimated cash flows, which have been updated to reflect recent external appraisals of the underlying collateral. For additional information on reverse mortgage loans, see Note 7, Reverse Mortgage Loans. Stock in the Federal Home Loan Bank (FHLB) of Pittsburgh The fair value of FHLB stock is assumed to be equal to its cost basis, since the stock is non-marketable but redeemable at its par value. Other assets Other assets includes other real estate owned (see discussion earlier in this note) and our investment in Visa Class B stock. Our ownership includes shares acquired at no cost from our prior participation in Visa’s network, while Visa operated as a cooperative. During 2015 we purchased additional shares which are accounted for as non-marketable equity securities and carried at cost. We evaluated the shares carried at cost for OTTI as of December 31, 2015, and the evaluation showed no OTTI as of December 31, 2015. Following resolution of Visa’s covered litigation, shares of Visa’s Class B stock will be converted to Visa Class A shares While only current owners of Class B shares are allowed to purchase other Class B shares, there have been several transactions between Class B shareholders. Based on these transactions we estimate the value of our Class B shares to be $13.3 million as of December 31, 2015. Deposits The fair value of deposits with no stated maturity, such as noninterest-bearing demand deposits, money market and interest-bearing demand deposits, is assumed to be equal to the amount payable on demand. The fair value of time deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using rates currently offered for deposits with comparable remaining maturities. Borrowed funds Rates currently available to us for debt with similar terms and remaining maturities are used to estimate fair value of existing debt. Off-balance sheet instruments The fair value of off-balance sheet instruments, including commitments to extend credit and standby letters of credit, approximates the recorded net deferred fee amounts, which are not significant. Because commitments to extend credit and letters of credit are generally not assignable by either us or the borrower, they only have value to us and the borrower. The book value and estimated fair value of our financial instruments are as follows: (In Thousands) Fair Value Measurement 2015 2014 At December 31, Book Value Fair Value Book Value Fair Value Financial assets: Cash and cash equivalents Level 1 $ 561,179 $ 561,179 $ 508,039 $ 508,039 Investment securities available-for-sale See previous table 721,029 721,029 740,124 740,124 Investment securities held-to-maturity Level 2 165,862 167,743 126,168 126,171 Loans, held-for-sale See previous table 41,807 41,807 28,508 28,508 Loans, net (1) Level 2 3,693,964 3,637,714 3,115,318 3,080,521 Impaired loans, net See previous table 35,086 35,086 41,334 41,334 Reverse Mortgages Level 3 24,284 24,284 29,298 29,298 Stock in Federal Home Loan Bank of Pittsburgh Level 2 30,519 30,519 23,278 23,278 Accrued interest receivable Level 2 14,040 14,040 11,782 11,782 Other assets Level 3 8,669 18,416 5,739 10,577 Financial liabilities: Deposits Level 2 $ 4,016,566 $ 3,791,606 $ 3,649,235 $ 3,461,218 Borrowed funds Level 2 934,211 935,230 667,775 672,850 Standby letters of credit Level 3 195 195 151 151 Accrued interest payable Level 2 801 801 1,004 1,004 (1) Excludes impaired loans, net. At December 31, 2015 and December 31, 2014 we had no commitments to extend credit measured at fair value.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	19. RELATED PARTY TRANSACTIONS We routinely entered into transactions with our directors and officers. These related party transactions were made in the ordinary course of business on substantially the same terms and conditions, including interest rates and collateral, as those prevailing at the same time for comparable transactions with other customers. They did not, in the opinion of management, involve more than the normal credit risk or present other unfavorable features. The outstanding balance of loans to related parties at December 31, 2015 and 2014 was $1.9 million and $2.9 million, respectively. Total deposits to related parties at December 31, 2015 and 2014 was $2.0 million and $4.2 million, respectively. During 2015, new loans and credit line advances to related parties amounted to $218,000 and repayments amounted to $886,000.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Segment Information	20. SEGMENT INFORMATION In accordance with FASB ASC 280, Segment Reporting The WSFS Bank segment provides financial products to commercial and retail customers. Retail and Commercial Banking, Commercial Real Estate Lending and other banking business units are operating departments of WSFS. These departments share the same regulator, the same market, many of the same customers and provide similar products and services through the general infrastructure of the Bank. Because of the following and other reasons, these departments are not considered discrete segments and are appropriately aggregated within the WSFS Bank segment in accordance with ASC 280. Cash Connect provides ATM vault cash and cash logistics services through strategic partnerships with several of the largest networks, manufacturers and service providers in the ATM industry. The balance sheet category “Cash in non-owned ATMs” includes cash from which fee income is earned through bailment arrangements with customers of Cash Connect. The Wealth Management segment provides a broad array of fiduciary, investment management, credit and deposit products to clients through four business lines. WSFS Wealth Investments provides insurance and brokerage products primarily to our retail banking clients. Cypress Capital Management, LLC is a registered investment advisor. Cypress’ primary market segment is high net worth individuals, offering a “balanced” investment style focused on preservation of capital and current income. Christiana Trust, provides fiduciary and investment services to personal trust clients, and trustee, agency, bankruptcy, custodial and commercial domicile services to corporate and institutional clients. WSFS Private Banking serves high net worth clients by delivering credit and deposit products and partnering with other business units to deliver investment management and fiduciary products and services. Segment information for the years ended December 31, 2015, 2014, and 2013 follows: For the Year Ended December 31, 2015: WSFS Bank Cash Connect Wealth Total (In Thousands) External customer revenues: Interest income $ 174,636 $ — $ 7,940 $ 182,576 Noninterest income 37,042 28,420 22,793 88,255 Total external customer revenues 211,678 28,420 30,733 270,831 Inter-segment revenues: Interest income 3,507 — 6,678 10,185 Noninterest income 7,988 873 96 8,957 Total inter-segment revenues 11,495 873 6,774 19,142 Total revenue 223,173 29,293 37,507 289,973 External customer expenses: Interest expense 15,155 — 621 15,776 Noninterest expenses 129,138 17,270 17,051 163,459 Provision for loan losses 7,476 — 314 7,790 Total external customer expenses 151,769 17,270 17,986 187,025 Inter-segment expenses Interest expense 6,678 1,547 1,960 10,185 Noninterest expenses 969 2,612 5,376 8,957 Total inter-segment expenses 7,647 4,159 7,336 19,142 Total expenses 159,416 21,429 25,322 206,167 Income before taxes $ 63,757 $ 7,864 $ 12,185 $ 83,806 Provision for income taxes 30,273 Consolidated net income $ 53,533 Cash and cash equivalents $ 65,663 $ 493,165 $ 2,351 $ 561,179 Goodwill 80,078 — 5,134 85,212 Other segment assets 4,746,995 192,576 4,939,571 Total segment assets at December 31, 2015 $ 4,892,736 $ 493,165 $ 200,061 $ 5,585,962 Capital expenditures $ 8,017 $ 1,729 $ 22 $ 9,768 For the Year Ended December 31, 2014: WSFS Bank Cash Wealth Total (In Thousands) External customer revenues: Interest income $ 152,545 $ — $ 7,792 $ 160,337 Noninterest income 34,461 25,698 18,119 78,278 Total external customer revenues 187,006 25,698 25,911 238,615 Inter-segment revenues: Interest income 3,405 — 5,558 8,963 Noninterest income 6,814 804 114 7,732 Total inter-segment revenues 10,219 804 5,672 16,695 Total revenue 197,225 26,502 31,583 255,310 External customer expenses: Interest expense 15,409 — 421 15,830 Noninterest expenses 118,853 15,449 12,343 146,645 Provision for loan losses 2,938 — 642 3,580 Total external customer expenses 137,200 15,449 13,406 166,055 Inter-segment expenses Interest expense 5,558 1,384 2,021 8,963 Noninterest expenses 918 2,291 4,523 7,732 Total inter-segment expenses 6,476 3,675 6,544 16,695 Total expenses 143,676 19,124 19,950 182,750 Income before taxes $ 53,549 $ 7,378 $ 11,633 $ 72,560 Provision for income taxes 18,803 Consolidated net income $ 53,757 Cash and cash equivalents $ 73,395 $ 431,527 $ 3,117 $ 508,039 Goodwill 43,517 — 5,134 48,651 Other segment assets 4,107,212 2,006 187,412 4,296,630 Total segment assets at December 31, 2014 $ 4,224,124 $ 433,533 $ 195,663 $ 4,853,320 Capital expenditures $ 3,192 $ 1,531 $ 9 $ 4,732 For the Year Ended December 31, 2013: WSFS Bank Cash Connect Wealth Total (In Thousands) External customer revenues: Interest income $ 139,082 $ — $ 7,840 $ 146,922 Noninterest income 40,479 23,746 15,926 80,151 Total external customer revenues 179,561 23,746 23,766 227,073 Inter-segment revenues: Interest income 3,603 — 5,749 9,352 Noninterest income 6,346 845 109 7,300 Total inter-segment revenues 9,949 845 5,858 16,652 Total revenue 189,510 24,591 29,624 243,725 External customer expenses: Interest expense 14,744 — 590 15,334 Noninterest expenses 106,021 12,950 12,784 131,755 Provision for loan losses 6,759 — 413 7,172 Total external customer expenses 127,524 12,950 13,787 154,261 Inter-segment expenses Interest expense 5,749 1,541 2,062 9,352 Noninterest expenses 954 2,237 4,109 7,300 Total inter-segment expenses 6,703 3,778 6,171 16,652 Total expenses 134,227 16,728 19,958 170,913 Income before taxes $ 55,283 $ 7,863 $ 9,666 $ 72,812 Provision for income taxes 25,930 Consolidated net income $ 46,882 Cash and cash equivalents $ 73,017 $ 408,096 $ 3,313 $ 484,426 Goodwill 27,101 — 5,134 32,235 Other segment assets 3,811,424 1,965 185,713 3,999,102 Total segment assets at December 31, 2013 $ 3,911,542 $ 410,061 $ 194,160 $ 4,515,763 Capital expenditures $ 2,232 $ 628 $ — $ 2,860

Parent Company Financial Inform

Parent Company Financial Information	12 Months Ended
	Dec. 31, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Parent Company Financial Information	21. PARENT COMPANY FINANCIAL INFORMATION Condensed Statements of Financial Condition December 31, 2015 2014 (In Thousands) Assets: Cash $ 26,456 $ 54,331 Investment in subsidiaries 667,587 551,784 Investment in Capital Trust III 2,011 2,011 Other assets 7,197 3,436 Total assets $ 703,251 $ 611,562 Liabilities: Trust preferred $ 67,011 $ 67,011 Senior debt 55,000 55,000 Interest payable 413 402 Other liabilities 356 98 Total liabilities 122,780 122,511 Stockholders’ equity: Common stock 560 557 Capital in excess of par value 256,435 201,130 Accumulated other comprehensive income 696 3,500 Retained earnings 570,630 523,099 Treasury stock (247,850 ) (239,235 ) Total stockholders’ equity 580,471 489,051 Total liabilities and stockholders’ equity $ 703,251 $ 611,562 Condensed Statements of Operations Year Ended December 31, 2015 2014 2013 (In Thousands) Income: Interest income $ 1,780 $ 785 $ 2,455 Noninterest income 30,180 74,125 9,983 Reverse mortgage consolidation gain — — 3,801 31,960 74,910 16,239 Expenses: Interest expense 5,124 5,087 5,113 Other operating expenses 233 140 197 5,357 5,227 5,310 Income before equity in undistributed income of subsidiaries 26,603 69,683 10,929 Equity in undistributed income of subsidiaries 25,765 (17,437 ) 35,019 Income before taxes 52,368 52,246 45,948 Income tax benefit 1,165 1,511 934 Dividends on preferred stock and accretion of discount — — (1,633 ) Net income allocable to common stockholders $ 53,533 $ 53,757 $ 45,249 Condensed Statements of Cash Flows Year Ended December 31, 2015 2014 2013 (In Thousands) Operating activities Net income $ 53,533 $ 53,757 $ 46,882 Adjustments to reconcile net income to net cash used for operating activities: Equity in undistributed income of subsidiaries (25,765 ) 17,437 (35,019 ) Reverse mortgage consolidation gain — — (3,801 ) Increase in capitalized interest — — (801 ) Decrease in other assets 3,925 4,217 3,831 Increase in other liabilities 405 203 245 Net cash provided by operating activities 32,098 75,614 11,337 Investing activities Payments for investment in and advances to subsidiaries — (2,225 ) — Sale or repayment of investments in and advances to subsidiaries 1,213 3,676 — Net cash from business combinations (23,096 ) (32,028 ) — Investment in non-marketable securities (3,589 ) — — Net cash used for investing activities (25,472 ) (30,577 ) — Financing activities Issuance of common stock 3,160 3,613 4,353 Redemption of preferred stock — — (52,625 ) Repurchase of common stock warrants — (6,300 ) Payments to repurchase common stock (31,659 ) (2,686 ) — Cash dividends paid (6,002 ) (4,644 ) (5,998 ) Net cash used for financing activities (34,501 ) (10,017 ) (54,270 ) (Decrease) increase in cash (27,875 ) 35,020 (42,933 ) Cash at beginning of period 54,331 19,311 62,244 Cash at end of period $ 26,456 $ 54,331 $ 19,311

Change in Accumulated Other Com

Change in Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Change in Accumulated Other Comprehensive Income	22. CHANGE IN ACCUMULATED OTHER COMPREHENSIVE INCOME Accumulated other comprehensive income (loss) includes unrealized gains and losses on available-for-sale investments as well as unrecognized prior service costs, transition costs and actuarial gains and losses on defined benefit pension plans which reflects changes made to the post retirement benefit obligation for retiree health and life insurance. These changes were effective March 31, 2014 (see Note 14 “Associate (Employee) Benefit Plans” for further information). Changes to other accumulated other comprehensive income (loss) are presented net of tax effect as a component of equity. Reclassification out of accumulated other comprehensive income is recorded on the Statements of Operations either as a gain or loss. Changes to accumulated other comprehensive income (loss) by component are shown net of taxes in the following tables for the period indicated: (In Thousands) Net change in investment available-for-sale Net change in securities held-to- maturity Net change in defined benefit plan Total Balance, December 31, 2012 $ 13,415 $ — $ (472 ) $ 12,943 Other comprehensive loss before reclassifications (32,057 ) — — (32,057 ) Less: Amounts reclassified from accumulated other comprehensive loss (2,180 ) — — (2,180 ) Net current-period other comprehensive loss (34,237 ) — — (34,237 ) Balance, December 31, 2013 $ (20,822 ) $ — $ (472 ) $ (21,294 ) Other comprehensive income before reclassifications 24,118 — 24,118 Less: Amounts reclassified from accumulated other comprehensive loss (643 ) — 1,319 676 Net current-period other comprehensive income 23,475 — 1,319 24,794 Balance, December 31, 2014 $ 2,653 $ — $ 847 $ 3,500 Other comprehensive loss before reclassifications (1,417 ) — (1,417 ) Less: Amounts reclassified from accumulated other comprehensive income (916 ) (412 ) (59 ) (1,387 ) Net current-period other comprehensive loss (2,333 ) (412 ) (59 ) (2,804 ) Balance, December 31, 2015 $ 320 $ (412 ) $ 788 $ 696 Components of other comprehensive income that impact the statement of operations are presented in the table below. Twelve Months Ended Affected line item in Statements of Operations (In Thousands) 2015 2014 2013 Securities available-for-sale: Realized gains on securities transactions $ (1,478 ) $ (1,036 ) $ (3,516 ) Securities gains, net Income taxes 562 393 1,336 Income tax provision Net of tax $ (916 ) $ (643 ) $ (2,180 ) Net unrealized holding gains on securities transferred between available-for-sale and held-to-maturity: Amortization of net unrealized gains to income during the period $ (646 ) $ — $ — Interest income on investment securities Income taxes 234 — — Income tax provision Net of tax $ (412 ) $ — $ — Amortization of Defined Benefit Pension Items: Prior service costs $ (76 ) $ 891 $ — Transition obligation — 246 — Actuarial losses (20 ) 991 — Total before tax $ (96 ) $ 2,128 $ — Salaries, benefits and other compensation Income taxes 37 (809 ) — Income tax provision Net of tax $ (59 ) $ 1,319 $ — Total reclassifications $ (1,387 ) $ 676 $ (2,180 )

Legal and Other Proceedings

Legal and Other Proceedings	12 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Legal and Other Proceedings	23. LEGAL AND OTHER PROCEEDINGS As initially disclosed in 2011, we were served with a complaint, filed in the U.S. Bankruptcy Court for the Eastern District of Pennsylvania, by a bankruptcy trustee relating to a former WSFS Bank customer. The complaint challenges the Bank’s actions relating to the repayment of an outstanding loan and also seeks to avoid and recover the pre-bankruptcy repayment of that loan, approximately $5.0 million. The matter has been captioned Goldstein v. Wilmington Savings Fund Society, FSB (In re: Universal Marketing, Inc.), Chapter 7, Case No. 09-15404 (ELF), Adv. Pro. No. 11-00512. We believe we acted appropriately and we are vigorously defending ourselves against the complaint. On November 24, 2015 the Court entered summary judgment in favor of WSFS Bank on all but one of the remaining counts, leaving one count for resolution at trial. Based upon available information we believe the estimate of the aggregate range of reasonably possible losses for this legal proceeding is from approximately $0 to approximately $5.0 million at December 31, 2015. Costs of litigation were initially covered by insurance; however, such costs have now exceeded the limits of insurance coverage for this case. Four purported shareholder derivative and class action complaints relating to the October 2015 merger with Alliance were filed during the quarter ended June 30, 2015. These actions were consolidated under the caption In re: Alliance Bancorp, Inc. of Pennsylvania Derivative and Class Action Litigation, Court of Common Pleas of Delaware County, Pennsylvania, Consol. Action Lead Case No. 2015-3606 (Civil Div.) (the Alliance Action). The complaint named as defendants Alliance Bancorp, Inc. of Pennsylvania, its directors and certain of its officers, and the Company (the Defendants). As previously disclosed, on June 11, 2015, solely to avoid the costs, risks and uncertainties inherent in litigation, Alliance, WSFS and the other Defendants entered into a Memorandum of Understanding (the MOU) with the plaintiffs ( the Plaintiffs) regarding the settlement of the Alliance Action. Pursuant to the MOU, Alliance filed with the SEC and made publicly available to Alliance shareholders supplemental disclosures, and the Plaintiffs agreed to release Alliance, WSFS and the other Defendants from all claims related to the Merger Agreement and the proposed merger, subject to approval of the Court of Common Pleas of Delaware County (the Court). In the MOU, the parties agreed to negotiate in good faith to prepare a stipulation of settlement to be filed with the Court and other documentation as may be required to effectuate the settlement. Management does not expect this settlement to have a material impact on the Company’s Consolidated Statements of Operations or Consolidated Statements of Condition. There can be no assurance that the parties ultimately will enter into a stipulation of settlement or that the Court will approve the settlement even if the parties were to enter into such stipulation. The proposed settlement contemplated by the MOU will become void in the event that the parties do not enter into such stipulation or the Court does not approve the settlement. Additionally, in 2013 a regulatory inquiry commenced into the registrar and transfer agent (“RTA”) activities of WSFS, as successor to Christiana Bank & Trust. As a result of issues arising from that inquiry, WSFS revamped Christiana Trust’s RTA policies and procedures and remediated all deficiencies. We have included the estimated financial liability from the expected resolution of this inquiry, which is not material, in our Consolidated Financial Statements as of December 31, 2015. From time-to-time we are brought into certain legal matters and/or disputes through our Wealth Management segment, as a result of sometimes highly complex documents and servicing requirements that are part of this business. While the outcomes carry some degree of uncertainty, management does not currently anticipate that the ultimate liability, if any, arising out of such other proceedings we are aware of, will have a material effect on the Consolidated Financial Statements. There were no material changes or additions to other significant pending legal or other proceedings involving us other than those arising out of routine operations.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	24. SUBSEQUENT EVENTS We reviewed subsequent events and determined that no further disclosures or measurements were required.

Quarterly Financial Summary

Quarterly Financial Summary	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Summary	QUARTERLY FINANCIAL SUMMARY (Unaudited) Three months ended 12/31/2015 9/30/2015 6/30/2015 3/31/2015 12/31/2014 9/30/2014 6/30/2014 3/31/2014 (In Thousands, Except Per Share Data) Interest income $ 51,813 $ 44,857 $ 43,055 $ 42,851 $ 42,340 $ 40,799 $ 39,413 $ 37,785 Interest expense 3,917 3,860 3,965 4,034 4,101 4,052 3,936 3,741 Net interest income 47,896 40,997 39,090 38,817 38,239 36,747 35,477 34,044 Provision for loan losses 1,778 1,453 3,773 786 567 333 50 2,630 Net interest income after provision for loan losses 46,118 39,544 35,317 38,031 37,672 36,414 35,427 31,414 Noninterest income 23,037 21,665 22,458 21,095 19,987 20,304 19,623 18,364 Noninterest expenses 47,187 38,705 38,654 38,913 38,374 39,163 35,224 33,884 Income before taxes 21,968 22,504 19,121 20,213 19,285 17,555 19,826 15,894 Income tax provision (benefit) 7,984 8,078 6,887 7,324 6,577 6,142 7,101 (1,017 ) Net Income $ 13,984 $ 14,426 $ 12,234 $ 12,889 $ 12,708 $ 11,413 $ 12,725 $ 16,911 Earnings per share: Basic $ 0.47 $ 0.52 $ 0.43 $ 0.46 $ 0.45 $ 0.42 $ 0.48 $ 0.63 Diluted 0.46 0.51 0.43 0.45 0.44 0.41 0.46 0.62

Summary of Significant Accoun35

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Organization	Organization WSFS Financial Corporation (the Company or as a consolidated institution, we, our or us) is a savings and loan holding company organized under the laws of the State of Delaware. Our principal wholly-owned subsidiary, Wilmington Savings Fund Society, FSB (WSFS Bank or the Bank), is a federal savings bank organized under the laws of the United States which, at December 31, 2015, served customers primarily from our 63 offices located in Delaware (44), Pennsylvania (17), Virginia (1), and Nevada (1) and through our website at www.wsfsbank.com In preparing the Consolidated Financial Statements, we are required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Although our estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions in 2016 could be worse than anticipated in those estimates, which could materially affect our results of operations and financial condition. Amounts subject to significant estimates are items such as the allowance for loan losses and reserves for lending related commitments, goodwill, intangible assets, post-retirement benefit obligations, the fair value of financial instruments, reverse mortgage related assets, income taxes and OTTI. Among other effects, changes to such estimates could result in future impairments of investment securities, goodwill and intangible assets and establishment of the allowance and lending related commitments as well as increased post-retirement benefits expense.
Basis of Presentation	Basis of Presentation Our Consolidated Financial Statements include the accounts of the parent company and its wholly-owned subsidiaries, WSFS Bank and Cypress. We also have one unconsolidated affiliate, WSFS Capital Trust III (the Trust). WSFS Bank has three wholly-owned subsidiaries, WSFS Wealth Investments, 1832 Holdings, Inc. and Monarch. WSFS Wealth Investments markets various third-party insurance and securities products to Bank customers through the Bank’s retail banking system. 1832 Holdings, Inc. was formed to hold certain debt and equity investment securities. Monarch provides commercial domicile services which include providing employees, directors, subleases and registered agent services in Delaware and Nevada. Cypress was formed to provide asset management products and services. As a Wilmington-based investment advisory firm servicing high net worth individuals and institutions, it has approximately $638 million in assets under management at December 31, 2015, compared to approximately $661 million at December 31, 2014. WSFS Capital Trust III (the Trust) is our unconsolidated subsidiary, and was formed in 2005 to issue $67.0 million aggregate principal amount of Pooled Floating Rate Capital Securities. The proceeds from this issue were used to fund the redemption of $51.5 million of Floating Rate WSFS Capital Trust I Preferred Securities (formerly, WSFS Capital Trust I). WSFS Capital Trust I invested all of the proceeds from the sale of the Pooled Floating Rate Capital Securities in our Junior Subordinated Debentures. Whenever necessary, reclassifications have been made to the prior years’ Consolidated Financial Statements to conform to the current year’s presentation. All significant intercompany transactions were eliminated in consolidation.
Common Stock Split	Common Stock Split In March 2015, the Company’s Board of Directors adopted an amendment to the Company’s Certificate of Incorporation, to increase the number of shares of common stock the Company is authorized to issue from 20,000,000, par value $0.01 to 65,000,000, par value $0.01. This amendment to the Company’s Certificate of Incorporation was approved by the Company’s stockholders at the 2015 Annual Meeting held on April 30, 2015. In May 2015, the Company effected a three-for-one stock split in the form of a stock dividend to shareholders of record as of May 4, 2015. All share and per share information has been retroactively adjusted to reflect the stock split. We retroactively adjusted stockholders’ equity to reflect the stock split by reclassifying an amount equal to the par value, $0.01, of the additional shares arising from the split from capital in excess of par value to common stock, resulting in no net impact to stockholders’ equity on our Consolidated Statements of Condition.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash, cash in non-owned ATMs, amounts due from banks, federal funds sold and securities purchased under agreements to resell.
Debt and Equity Securities	Debt and Equity Securities Investments in equity securities that have a readily determinable fair value and investments in debt securities are classified into three categories and accounted for as follows: • Debt securities with the positive intention to hold to maturity are classified as “held-to-maturity” and reported at amortized cost. • Debt and equity securities purchased with the intention of selling them in the near future are classified as “trading securities” and reported at fair value, with unrealized gains and losses included in earnings. • Debt and equity securities not classified in either of the above are classified as “available-for-sale securities” and reported at fair value, with unrealized gains and losses excluded from earnings and reported, net of tax, as a separate component of stockholders’ equity. Debt and equity securities include MBS, municipal bonds, U.S. Government and agency securities and certain equity securities. Premiums and discounts on debt and equity securities, held-to-maturity and available-for-sale, are recognized in interest income using a level yield method over the period to expected maturity. The fair value of debt and equity securities is primarily obtained from third-party pricing services. Implicit in the valuation are estimated prepayments based on historical and current market conditions. We follow ASC 320-10-55 “ Investments—Debt and Equity Securities For additional detail regarding debt and equity securities, see Note 3 to the Consolidated Financial Statements.
Reverse Mortgage Loans	Reverse Mortgage Loans We account for our investment in reverse mortgages in accordance with the instructions provided by the staff of the SEC entitled “Accounting for Pools of Uninsured Residential Reverse Mortgage Contracts,” which requires grouping the individual reverse mortgages into “pools” based on similar characteristics and recognizing income based on the estimated effective yield of the pools. In computing the effective yield, we must project the cash inflows and outflows of the pool including actuarial projections of the life expectancy of the individual contract holder and changes in the collateral value of the residence. At each reporting date, a new economic forecast is made of the cash inflows and outflows of each pool of reverse mortgages. The effective yield of each pool is recomputed and income is adjusted to reflect the revised rate of return. Because of this highly specialized accounting, the recorded value of reverse mortgage assets can result in significant volatility associated with estimations. As a result, income recognition can vary significantly from reporting period to reporting period. For additional detail regarding reverse mortgages, see Note 7 to the Consolidated Financial Statements.
Loans	Loans Loans are stated net of deferred fees and costs. Interest income on loans is recognized using the level yield method. Loan origination fees, commitment fees and direct loan origination costs are deferred and recognized over the life of the related loans using a level yield method over the period to maturity. A loan is impaired when, based on current information and events, it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement. Impaired loans are measured based on the present value of expected future discounted cash flows, the market price of the loan or the fair value of the underlying collateral if the loan is collateral dependent. In addition, all loans restructured in a troubled debt restructuring are considered to be impaired. Impaired loans include loans within our commercial (investor and owner-occupied), commercial mortgage, commercial construction, residential mortgages and consumer portfolios. Our policy for recognition of interest income on impaired loans, excluding accruing loans, is the same as for nonaccrual loans discussed below. In addition to originating loans, we occasionally acquire loans through mergers or loan purchase transactions. Some of these acquired loans may exhibit deteriorated credit quality that has occurred since origination and we may not expect to collect all contractual payments. Accounting for these purchased credit-impaired loans is done in accordance with ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality For additional detail regarding impaired loans, see Note 6 to the Consolidated Financial Statements and for additional detail regarding purchased credit impaired loans see Note 4 to the Consolidated Financial Statements.
Past Due and Nonaccrual Loans	Past Due and Nonaccrual Loans Past due loans are defined as loans contractually past due 90 days or more as to principal or interest payments but which remain in accrual status because they are considered well secured and in the process of collection. Nonaccruing loans are those on which the accrual of interest has ceased. Loans are placed on nonaccrual status immediately if, in the opinion of management, collection is doubtful, or when principal or interest is past due 90 days or more and the loan is not well secured and in the process of collection. Interest accrued but not collected at the date a loan is placed on nonaccrual status is reversed and charged against interest income. In addition, the amortization of net deferred loan fees is suspended when a loan is placed on nonaccrual status. Subsequent cash receipts are applied either to the outstanding principal balance or recorded as interest income, depending on management’s assessment of the ultimate collectability of principal and interest. Loans are returned to an accrual status when we assess that the borrower has the ability to make all principal and interest payments in accordance with the terms of the loan (i.e. including a consistent repayment record, generally six consecutive payments, has been demonstrated). For additional detail regarding past due and nonaccrual loans, see Note 6 to the Consolidated Financial Statements.
Allowance for Loan Losses	Allowance for Loan Losses We maintain an allowance for loan losses and charge losses to this allowance when such losses are realized. The determination of the allowance for loan losses requires significant judgment reflecting our best estimate of impairment related to specifically identified loans as well as probable loan losses in the remaining loan portfolio. Our evaluation is based upon a continuing review of these portfolios. We have established the loan loss allowance in accordance with guidance provided by the SEC’s Staff Accounting Bulletin 102 (SAB 102) and FASB ASC 450, Contingencies For additional detail regarding the allowance for loan losses and the provision for loan losses, see Note 6 to the Consolidated Financial Statements.
Loans Held-for-Sale	Loans Held-for-Sale Loans held-for-sale are carried at their fair value on a loan level.
Assets Acquired Through Foreclosure	Assets Acquired Through Foreclosure Assets acquired through foreclosure are recorded at the lower of the recorded investment in the loans or their fair value less estimated disposal costs. Costs subsequently incurred to improve the assets are included in the carrying value provided that the resultant carrying value does not exceed fair value less estimated disposal costs. Costs relating to holding or disposing of the assets are charged to expense in the current period. We write-down the value of the assets when declines in fair value below the carrying value are identified. Loan workout and OREO expenses include costs of holding and operating the assets, net gains or losses on sales of the assets and provisions for losses to reduce such assets to fair value less estimated disposal costs. During 2015, we recorded $276,000 in charges (including write-downs and net losses on sales of assets) related to assets acquired through foreclosure (REO). These charges were $672,000 and $592,000 for the years ended December 31, 2014 and 2013, respectively. As of December 31, 2015 we had $5.7 million in residential real estate in process of foreclosure. For additional detail regarding assets acquired through foreclosure, see Note 6 to the Consolidated Financial Statements.
Premises and Equipment	Premises and Equipment Premises and equipment is stated at cost less accumulated depreciation and amortization. Costs of major replacements, improvements and additions are capitalized. Depreciation expense is computed on a straight-line basis over the estimated useful lives of the assets or, for leasehold improvements, over the effective life of the related lease if less than the estimated useful life. In general, computer equipment, furniture and equipment and building renovations are depreciated over three, five and ten years, respectively. For additional detail regarding the provision for premises and equipment, see Note 8 to the Consolidated Financial Statements.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets In accordance with FASB ASC 805, Business Combinations Intangibles-Goodwill and Other Simplifying the Accounting for Measurement-Period Accounting We consider our accounting policies related to goodwill and other intangible assets to be critical because the assumptions or judgment used in determining the fair value of assets and liabilities acquired in past acquisitions are subjective and complex. As a result, changes in these assumptions or judgment could have a significant impact on our financial condition or results of operations. For additional information regarding our goodwill and other intangible assets, see Notes 2 & 9 to the Consolidated Financial Statements.
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	Federal Funds Purchased and Securities Sold Under Agreements to Repurchase We enter into sales of securities under agreements to repurchase. Securities sold under agreements to repurchase are treated as financings, with the obligation to repurchase securities sold reflected as a liability in the Consolidated Statement of Condition. The securities underlying the agreements are assets. Generally, federal funds are purchased for periods ranging up to 90 days. For additional detail regarding the Federal funds purchased and sold under agreements to repurchase, see Note 11 to the Consolidated Financial Statements.
Loss Contingency for Unfunded Commitments	Loss Contingency for Unfunded Commitments We maintain a loss contingency accrual for probable losses related to unfunded commitments. The determination of the loss contingency for unfunded commitments requires significant judgment reflecting management’s best estimate of probable losses related to unfunded commitments. For additional detail regarding loss contingency and unfunded commitments, see Note 11 to the Consolidated Financial Statements.
Income Taxes	Income Taxes The provision for income taxes includes federal, state and local income taxes currently payable and those deferred because of temporary differences between the financial statement basis and tax basis of assets and liabilities. We account for income taxes in accordance with FASB ASC 740, Income Taxes For additional detail regarding income taxes, see Note 15 to the Consolidated Financial Statements.
Stock-Based Compensation	Stock-Based Compensation Stock-based compensation is accounted for in accordance with FASB ASC 718, Stock Compensation For additional detail regarding stock-based compensation, see Note 16 to the Consolidated Financial Statements.
Earnings Per Share	Earnings Per Share The following table shows the computation of basic and diluted earnings per share: (In Thousands, Except Per share Data) 2015 2014 2013 Numerator: Net income allocable to common shareholders $ 53,533 $ 53,757 $ 45,249 Denominator: Denominator for basic earnings per share—weighted average shares 28,435 27,218 26,453 Effect of dilutive employee stock options, restricted stock and warrants 508 690 377 Denominator for diluted earnings per share—adjusted weighted average shares and assumed exercised 28,943 27,908 26,830 Earnings per share: Basic: Net income allocable to common shareholders $ 1.88 $ 1.98 $ 1.71 Diluted: Net income allocable to common shareholders $ 1.85 $ 1.93 $ 1.69 Outstanding common stock equivalents having no dilutive effect 83 127 1,324
Recent Accounting Pronouncements	RECENT ACCOUNTING PRONOUNCEMENTS Accounting Guidance Adopted in 2015 In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments. In August 2014, the FASB issued ASU No. 2014-14 , Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure (a consensus of the FASB Emerging Issues Task Force). In June 2014, the FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures. In January 2014, the FASB issued ASU No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure . In January 2014, the FASB, issued ASU No. 2014-01, Investments — Equity Method and Joint Ventures (Topic 323) — Accounting for Investments in Qualified Affordable Housing Projects (a consensus of the FASB Emerging Issues Task Force). Income Taxes Management’s Discussion and Analysis of Financial Condition and Results of Operations Accounting Guidance Pending Adoption at December 31, 2015 In June 2014, the FASB issued ASU 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). Revenue Recognition. Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date. In April 2015, the FASB issued ASU No. 2015-03, Interest- Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs. In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842)

Summary of Significant Accoun36

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table shows the computation of basic and diluted earnings per share: (In Thousands, Except Per share Data) 2015 2014 2013 Numerator: Net income allocable to common shareholders $ 53,533 $ 53,757 $ 45,249 Denominator: Denominator for basic earnings per share - weighted average shares 28,435 27,218 26,453 Effect of dilutive employee stock options, restricted stock and warrants 508 690 377 Denominator for diluted earnings per share - adjusted weighted average shares and assumed exercised 28,943 27,908 26,830 Earnings per share: Basic: Net income allocable to common shareholders $ 1.88 $ 1.98 $ 1.71 Diluted: Net income allocable to common shareholders $ 1.85 $ 1.93 $ 1.69 Outstanding common stock equivalents having no dilutive effect 83 127 1,324

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2015
Alliance Bancorp, Inc. [Member]
Summary of Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed	In connection with the merger, the consideration paid and the fair value of identifiable assets acquired and liabilities assumed, as of the date of acquisition, are summarized in the following table: (In Thousands) Fair Value Consideration Paid: Common shares issued (2,459,120) $ 71,345 Cash paid to Alliance stockholders 26,576 Value of consideration 97,921 Assets acquired: Cash and due from banks 67,439 Investment securities 3,002 Loans 307,695 Premises and equipment 2,685 Deferred income taxes 7,544 Bank owned life insurance 12,923 Core deposit intangible 2,635 Other real estate owned 768 Other assets 2,986 Total assets 407,677 Liabilities assumed: Deposits 341,682 Other borrowings 2,826 Other liabilities 1,673 Total liabilities 346,181 Net assets acquired: 61,496 Goodwill resulting from acquisition of Alliance $ 36,425
First Wyoming Financial Corporation [Member]
Summary of Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed	In connection with the merger, the consideration paid and the fair value of identifiable assets acquired and liabilities assumed, as of the date of acquisition, are summarized in the following table: (In Thousands) Fair Value Consideration Paid: Common shares issued (1,357,983) $ 32,908 Cash paid to FNBW stockholders 32,028 Value of consideration 64,936 Assets acquired: Cash and due from banks 40,605 Investment securities 41,822 Loans 175,895 Premises and equipment 1,611 Deferred income taxes 3,216 Bank owned life insurance 12,576 Core deposit intangible 3,240 Other Real Estate Owned 1,593 Other assets 4,659 Total assets 285,217 Liabilities assumed: Deposits 228,844 FHLB advances 5,052 Other liabilities 2,891 Total liabilities 236,787 Net assets acquired: 48,430 Goodwill resulting from acquisition of FNBW: $ 16,506
Schedule of Changes to Goodwill	The following table details the changes to goodwill: Fair Value Goodwill resulting from the acquisition of FNBW reported as of September 30, 2014 $ 16,370 Effects of adjustments to: Assets 236 Liabilities (100 ) Final purchase price — Adjusted goodwill resulting from the acquisition of FNBW as of December 31, 2015 $ 16,506

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Estimated Fair Value of Available-for-Sale and Held-to-Maturity Investment Securities	The following tables detail the amortized cost and the estimated fair value of our available-for-sale and held-to-maturity investment securities: (In Thousands) Amortized Gross Gross Fair Value Available-for-sale securities: December 31, 2015 GSE $ 31,041 $ — $ 127 $ 30,914 CMO 253,189 713 2,414 251,488 FNMA MBS 320,105 1,081 2,715 318,471 FHLMC MBS 99,350 405 313 99,442 GNMA MBS 20,387 420 93 20,714 $ 724,072 $ 2,619 $ 5,662 $ 721,029 (In Thousands) Amortized Gross Gross Fair Value Available-for-sale securities: December 31, 2014 GSE $ 30,020 $ 14 $ 74 $ 29,960 CMO 193,672 874 1,614 192,932 FNMA MBS 291,606 2,053 1,106 292,553 FHLMC MBS 146,742 672 532 146,882 GNMA MBS 77,364 701 268 77,797 $ 739,404 $ 4,314 $ 3,594 $ 740,124 (In Thousands) Amortized Gross Gross Fair Value Held-to-Maturity Securities (a) December 31, 2015 State and political subdivisions $ 165,862 $ 1,943 $ 62 $ 167,743 (In Thousands) Amortized Gross Gross Fair Value Held-to-Maturity Securities (a) December 31, 2014 State and political subdivisions $ 126,168 $ 3 $ — $ 126,171 (a) Held-to-maturity securities transferred from available-for-sale are included in held-to-maturity at fair value at the time of transfer. The amortized cost of held-to-maturity securities included net unrealized gains of $2.9 million and $3.6 million at December 31, 2015 and December 31, 2014, respectively, related to securities transferred, which are offset in Accumulated Other Comprehensive Income, net of tax.
Schedule of Maturities of Investment Securities Available-for-Sale and Held-to-Maturity	The scheduled maturities of investment securities at December 31, 2015 and December 31, 2014 were as follows: Available-for-Sale (In Thousands) Amortized Cost Fair Value 2015 (1) Within one year $ 3,997 $ 3,995 After one year but within five years 30,009 29,840 After five years but within ten years 218,023 215,018 After ten years 472,043 472,176 $ 724,072 $ 721,029 2014 (1) Within one year $ 10,000 $ 10,014 After one year but within five years 20,020 19,946 After five years but within ten years 134,453 133,395 After ten years 574,931 576,769 $ 739,404 $ 740,124 Held-to-Maturity (In Thousands) Amortized Fair Value 2015 (1) Within one year $ 1,486 $ 1,488 After one year but within five years 3,465 3,456 After five years but within ten years 7,939 8,045 After ten years 152,972 154,754 $ 165,862 $ 167,743 2014 (1) Within one year $ 3,608 $ 3,608 After one year but within five years 6,217 6,217 After five years but within ten years 9,733 9,736 After ten years 106,610 106,610 $ 126,168 $ 126,171 (1) Actual maturities could differ from contractual maturities.
Schedule of Investment Securities' Gross Unrealized Losses and Fair Value by Investment Category	For these investment securities with unrealized losses, the table below shows our gross unrealized losses and fair value by investment category and length of time that individual securities were in a continuous unrealized loss position at December 31, 2015. Duration of Unrealized Loss Position Less than 12 months 12 months or longer Total (In Thousands) Available-for-sale securities: Fair Value Unrealized Fair Unrealized Fair Value Unrealized GSE $ 30,914 $ 127 $ — $ — $ 30,914 $ 127 CMO 139,486 1,703 26,536 711 166,022 2,414 FNMA MBS 214,465 2,715 — — 214,465 2,715 FHLMC MBS 41,791 136 4,025 177 45,816 313 GNMA MBS 4,073 29 2,377 64 6,450 93 Total temporarily impaired investments $ 430,729 $ 4,710 $ 32,938 $ 952 $ 463,667 $ 5,662 Less than 12 months 12 months or longer Total (In Thousands) Held-to-maturity Fair Value Unrealized Fair Unrealized Fair Value Unrealized State and political subdivisions $ 9,845 $ 62 $ — $ — $ 9,845 $ 62 Total temporarily impaired investments $ 9,845 $ 62 $ — $ — $ 9,845 $ 62 For these investment securities with unrealized losses, the table below shows our gross unrealized losses and fair value by investment category and length of time that individual securities were in a continuous unrealized loss position at December 31, 2014. Less than 12 months 12 months or longer Total (In Thousands) Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale securities: Value Loss Value Loss Value Loss GSE $ 19,945 $ 74 $ — $ — $ 19,945 $ 74 CMO 15,492 108 61,630 1,506 77,122 1,614 FNMA MBS — — 103,207 1,106 103,207 1,106 FHLMC MBS 23,901 54 58,267 478 82,168 532 GNMA MBS — — 48,312 268 48,312 268 Total temporarily impaired investments $ 59,338 $ 236 $ 271,416 $ 3,358 $ 330,754 $ 3,594

Acquired Credit Impaired Loans

Acquired Credit Impaired Loans (Tables)	12 Months Ended
	Dec. 31, 2015
Schedule of Outstanding Principal Balance and Carrying Amounts for Acquired Credit-Impaired Loans	The following is the outstanding principal balance and carrying amounts for all acquired credit impaired loans for which the company applies ASC 310-30 as of December 31, 2015 and 2014: (In Thousands) December 31, 2015 December 31, 2014 Outstanding principal balance $ 38,067 $ 22,752 Carrying amount 32,568 15,893 Allowance for loan losses 132 —
Summary of Changes in Accretable Yield on Acquired Credit Impaired Loans	The following table presents the changes in accretable yield on all acquired credit impaired loans for the years indicated: Accretable Balance as of September 5, 2014 $ 1,790 Accretion (250 ) Reclassification from nonaccretable difference — Additions/adjustments (42 ) Disposals — Ending balance as of December 31, 2014 $ 1,498 Addition from Alliance acquisition 2,334 Accretion (1,405 ) Reclassification from nonaccretable difference 3,054 Additions/adjustments (714 ) Disposals (3 ) Ending balance as of December 31, 2015 $ 4,764
Alliance Bancorp, Inc. [Member]
Schedule of Loans Accounted in Accordance with ASC 310-	The following table details the loans acquired through the Alliance merger on October 9, 2015 that are accounted for in accordance with FASB ASC 310-30. (In Thousands) October 9, 2015 Contractually required principal and interest at acquisition* $ 27,469 Contractual cash flows not expected to be collected (nonaccretable difference) 2,377 Expected cash flows at acquisition 25,092 Interest component of expected cash flows (accretable yield) 2,334 Fair value of acquired loans accounted for under FASB ASC 310-30 $ 22,758 * The difference between $27.4 and $24.6 in Note 2 is contractual interest to be received
First Wyoming Financial Corporation [Member]
Schedule of Loans Accounted in Accordance with ASC 310-	The following table details the loans acquired through the FNBW merger on September 5, 2014 that are accounted for in accordance with FASB ASC 310-30. (In Thousands) September 5, 2014 Contractually required principal and interest at acquisition* $ 27,086 Contractual cash flows not expected to be collected (nonaccretable difference) 7,956 Expected cash flows at acquisition 19,130 Interest component of expected cash flows (accretable yield) 1,790 Fair value of acquired loans accounted for under FASB ASC 310-30 $ 17,340 * The difference between $27.1 and $24.2 in Note 2 is contractual interest to be received

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2015
Receivables [Abstract]
Summary of Loan Portfolio by Category	The following table details our loan portfolio by category: December 31, 2015 2014 (In Thousands) Commercial and industrial $ 1,061,597 $ 920,072 Owner-occupied commercial 880,643 788,598 Commercial mortgages 966,698 805,459 Construction 245,773 142,497 Residential 259,679 218,329 Consumer 360,249 327,543 3,774,639 3,202,498 Less: Deferred fees, net 8,500 6,420 Allowance for loan losses 37,089 39,426 Net loans $ 3,729,050 $ 3,156,652

Allowance for Loan Losses and41

Allowance for Loan Losses and Credit Quality Information (Tables)	12 Months Ended
	Dec. 31, 2015
Text Block [Abstract]
Schedule of Allowance for Loan Losses and Loan Balances	The following tables provide an analysis of the allowance for loan losses and loan balances as of and for the year ended December 31, 2015 and December 31, 2014: (In Thousands) Commercial Owner- Commercial Construction Residential Consumer Complexity (1) Total Twelve months ended December 31, 2015 Allowance for loan losses Beginning balance $ 12,837 $ 6,643 $ 7,266 $ 2,596 $ 2,523 $ 6,041 $ 1,520 $ 39,426 Charge-offs (6,303 ) (738 ) (1,135 ) (146 ) (548 ) (3,225 ) — (12,095 ) Recoveries 301 77 222 185 226 957 — 1,968 Provision (credit) for loan losses 4,241 665 (67 ) 852 76 2,183 (510 ) 7,440 Provision for acquired loans 80 23 201 34 4 8 — 350 Ending balance $ 11,156 $ 6,670 $ 6,487 $ 3,521 $ 2,281 $ 5,964 $ 1,010 $ 37,089 Period-end allowance allocated to: Loans individually evaluated for impairment $ 1,164 $ — $ — $ 211 $ 918 $ 199 $ — $ 2,492 Loans collectively evaluated for impairment 9,988 6,648 6,384 3,310 1,360 5,765 1,010 34,465 Acquired loans evaluated for impairment 4 22 103 — 3 — — 132 Ending balance $ 11,156 $ 6,670 $ 6,487 $ 3,521 $ 2,281 $ 5,964 $ 1,010 $ 37,089 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 5,680 $ 1,090 $ 3,411 $ 1,419 $ 15,548 $ 7,664 $ — $ 34,812 Loans collectively evaluated for impairment 930,346 820,911 869,359 213,801 166,252 335,323 — 3,335,992 Acquired nonimpaired loans 112,586 53,954 83,415 27,009 76,929 17,255 — 371,148 Acquired impaired loans 12,985 4,688 10,513 3,544 950 7 — 32,687 Ending balance $ 1,061,597 $ 880,643 $ 966,698 $ 245,773 $ 259,679 $ 360,249 $ — $ 3,774,639 (3) (In Thousands) Commercial Owner- Commercial Construction Residential Consumer Complexity (1) Total Twelve months ended December 31, 2014 Allowance for loan losses Beginning balance $ 12,751 $ 7,638 $ 6,932 $ 3,326 $ 3,078 $ 6,494 $ 1,025 $ 41,244 Charge-offs (3,587 ) (1,085 ) (425 ) (88 ) (811 ) (2,855 ) — (8,851 ) Recoveries 1,611 249 202 242 168 981 — 3,453 Provision (credit) for loan losses 2,062 (159 ) 557 (884 ) 88 1,421 495 3,580 Ending balance $ 12,837 $ 6,643 $ 7,266 $ 2,596 $ 2,523 $ 6,041 $ 1,520 $ 39,426 Period-end allowance allocated to: Loans individually evaluated for impairment $ 3,034 $ 609 $ 319 $ 334 $ 790 $ 231 $ — $ 5,317 Loans collectively evaluated for impairment 9,803 6,034 6,947 2,262 1,733 5,810 1,520 34,109 Ending balance $ 12,837 $ 6,643 $ 7,266 $ 2,596 $ 2,523 $ 6,041 $ 1,520 $ 39,426 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 12,381 $ 2,474 $ 8,335 $ 1,419 $ 15,666 $ 6,376 $ — $ 46,651 ( 2) Loans collectively evaluated for impairment 872,398 743,680 753,451 127,324 184,788 312,539 — 2,994,180 Acquired nonimpaired loans 32,024 40,180 37,697 9,891 17,363 8,619 145,774 Acquired impaired loans 3,269 2,264 5,976 3,863 512 9 15,893 Ending balance $ 920,072 $ 788,598 $ 805,459 $ 142,497 $ 218,329 $ 327,543 $ — $ 3,202,498 (3) (1) Represents the portion of the allowance for loan losses established to account for the inherent complexity and uncertainty of estimates. (2) The difference between this amount and nonaccruing loans represents accruing troubled debt restructured loans which are considered to be impaired loans of $13.6 million at December 31, 2015 and $22.6 million as of December 31, 2014. (3) Ending loan balances do not include deferred costs.
Summary of Nonaccrual and Past Due Loans	The following tables show our nonaccrual and past due loans at the dates indicated: At Dec. 31, 2015 30–59 Days 60–89 Days Greater Than Past Due and Total Past And Still Accruing Acquired Nonaccrual Total (In Thousands) Commercial $ 1,686 $ 270 $ 12,355 $ 14,311 $ 1,028,973 $ 12,985 $ 5,328 $ 1,061,597 Owner-occupied 713 217 4,886 5,816 869,048 4,688 1,091 880,643 Commercial mortgages 141 4 288 433 952,426 10,513 3,326 966,698 Construction — — — — 242,229 3,544 — 245,773 Residential 5,263 621 251 6,135 245,307 950 7,287 259,679 Consumer 1,222 36 252 1,510 354,599 7 4,133 360,249 Total (1) $ 9,025 $ 1,148 $ 18,032 $ 28,205 $ 3,692,582 $ 32,687 $ 21,165 $ 3,774,639 % of Total Loans 0.24 % 0.03 % 0.48 % 0.75 % 97.83 % 0.86 % 0.56 % 100.00 % (1) Balances in table above includes $371.1 million in acquired non-impaired loans. At Dec. 31, 2014 30–59 Days 60–89 Days Greater Than Past Due and Total Past And Still Accruing Acquired Nonaccrual Total Loans (In Thousands) Commercial $ 715 $ — $ — $ 715 $ 913,382 $ 3,269 $ 2,706 $ 920,072 Owner-occupied commercial 393 — — 393 783,466 2,264 2,475 788,598 Commercial mortgages 203 — — 203 791,035 5,976 8,245 805,459 Construction — — — — 138,634 3,863 — 142,497 Residential 3,879 604 — 4,483 206,266 512 7,068 218,329 Consumer 1,241 342 4 1,587 322,390 9 3,557 327,543 Total (1) $ 6,431 $ 946 $ 4 $ 7,381 $ 3,155,173 $ 15,893 $ 24,051 $ 3,202,498 % of Total Loans 0.20 % 0.03 % 0.00 % 0.23 % 98.52 % 0.50 % 0.75 % 100.00 % (1) Balances in table above includes $145.8 million in acquired non-impaired loans.
Analysis of Impaired Loans	The following tables provide an analysis of our impaired loans at December 31, 2015 and December 31, 2014: 2015 (In Thousands) Ending Loans with (1) Loan with Related Contractual Average Commercial $ 6,137 $ 951 $ 5,186 $ 1,168 $ 20,206 $ 9,391 Owner-occupied commercial 2,127 1,090 1,037 22 2,947 2,111 Commercial mortgages 4,652 3,410 1,242 103 11,826 7,540 Construction 1,419 — 1,419 211 1,419 1,448 Residential 15,710 9,034 6,676 920 18,655 15,264 Consumer 7,665 6,498 1,167 200 9,353 6,801 Total (2) $ 37,710 $ 20,983 $ 16,727 $ 2,624 $ 64,406 $ 42,555 2014 (In Thousands) Ending Loans with (1) Loan with Related Contractual Average Commercial $ 12,381 $ 580 $ 11,801 $ 3,034 $ 20,924 $ 5,952 Owner-occupied commercial 2,474 1,865 609 609 3,708 4,461 Commercial mortgages 8,335 4,732 3,603 319 14,383 11,005 Construction 1,419 — 1,419 334 1,419 1,013 Residential 15,666 7,068 8,598 790 18,967 17,296 Consumer 6,376 3,557 2,819 231 7,162 5,902 Total $ 46,651 $ 17,802 $ 28,849 $ 5,317 $ 66,563 $ 45,629 (1) Reflects loan balances at or written down to their remaining book balance. (2) The above includes acquired impaired loans totaling $2.9 million in the ending loan balance and $3.5 million in the contractual principal balance.
Schedule of Commercial Credit Exposure	The following tables provide an analysis of loans by portfolio segment based on the credit quality indicators used to determine the Allowance at December 31: Commercial Credit Exposure Total Commercial(1) Commercial Owner- Occupied Commercial Construction 2015 2014 (In Thousands) 2015 2014 2015 2014 2015 2014 2015 2014 Amount % Amount % Risk Rating: Special mention $ 5,620 $ 4,744 $ 9,535 $ 6,989 $ 12,323 $ 9,065 $ — $ — $ 27,478 $ 20,798 Substandard: Accrual 33,883 42,377 22,901 14,436 2,547 9,167 8,296 1,085 67,627 67,065 Nonaccrual 4,164 1,225 1,090 1,865 3,326 7,927 — — 8,580 11,017 Doubtful/nonaccrual 1,164 3,034 — 609 — 319 — 334 1,164 4,296 Total special mention and substandard 44,831 51,380 33,526 23,899 18,196 26,478 8,296 1,419 104,849 3 % 103,176 4 % Acquired impaired loans 12,985 3,269 4,688 2,264 10,513 5,976 3,544 3,863 31,730 1 % 15,372 1 % Pass 1,003,781 865,423 842,429 762,435 937,989 773,005 233,933 137,215 3,018,132 96 % 2,538,078 95 % Total $ 1,061,597 $ 920,072 $ 880,643 $ 788,598 $ 966,698 $ 805,459 $ 245,773 $ 142,497 $ 3,154,711 100 % $ 2,656,626 100 % (1) Table includes $ 277.0 million in acquired non-impaired loans at December 31, 2015 and $119.8 million at December 31, 2014.
Schedule of Consumer Credit Exposure	Consumer Credit Exposure Total Residential and Consumer(2) Residential Consumer 2015 2014 (In Thousands) 2015 2014 2015 2014 Amount Percent Amount Percent Nonperforming(1) $ 15,548 $ 15,666 $ 7,664 $ 6,376 $ 23,212 4 % $ 22,042 4 % Acquired impaired loans 950 512 7 9 957 — % 521 — % Performing 243,181 202,151 352,578 321,158 595,759 96 % 523,309 96 % Total $ 259,679 $ 218,329 $ 360,249 $ 327,543 $ 619,928 100 % $ 545,872 100 % (1) Includes $13.6 million as of December 31, 2015 and $11.4 million as of December 31, 2014 of troubled debt restructured mortgages and home equity installment loans that are performing in accordance with the loans modified terms and are accruing interest. (2) Total includes acquired non-impaired loans of $94.2 million at December 31, 2015 and $26.0 million at December 31, 2014.
Schedule of Loans Identified as Troubled Debt Restructurings During Periods Indicated	The following table presents loans identified as TDRs during the twelve months ended December 31, 2015 and December 31, 2014: (In Thousands) Twelve Twelve Commercial $ — $ 9,356 Owner Occupied Commercial 577 — Commercial mortgages — 3,430 Construction — 1,419 Residential 895 2,062 Consumer 1,615 1,612 $ 3,087 $ 17,879

Reverse Mortgage Loans (Tables)

Reverse Mortgage Loans (Tables)	12 Months Ended
	Dec. 31, 2015
Mortgage Banking [Abstract]
Summary of Estimated Cash Payments to Reverse Mortgagors	As of December 31, 2015, the Company’s actuarially estimated cash payments to reverse mortgagors are as follows: Year Ending 2016 $ 594 2017 475 2018 376 2019 294 2020 228 Years 2021 — 2025 529 Years 2026 — 2030 106 Years 2031 — 2035 15 Thereafter 2 Total $ 2,619

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Summary of Premises and Equipment	Land, office buildings, leasehold improvements and furniture and equipment, at cost, are summarized by major classifications: December 31, 2015 2014 (In Thousands) Land $ 2,325 $ 2,052 Buildings 6,878 4,791 Leasehold improvements 37,123 35,925 Furniture and equipment 31,824 24,644 78,150 67,412 Less: Accumulated depreciation 38,581 32,338 $ 39,569 $ 35,074
Summary of Future Minimum Cash Payments	Future minimum cash payments under these leases at December 31, 2015 are as follows: (In Thousands) 2016 $ 9,178 2017 8,971 2018 8,931 2019 8,923 2020 8,968 Thereafter 158,050 Total future minimum lease payments $ 203,021

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Allocation of Goodwill to Our Reportable Operating Segments for Purposes of Goodwill Impairment Testing	The following table shows the allocation of goodwill to our reportable operating segments for purposes of goodwill impairment testing: (In Thousands) WSFS Cash Wealth Consolidated December 31, 2013 $ 27,101 $ — $ 5,134 $ 32,235 Changes in Goodwill 46 — — 46 Goodwill from business combinations 16,370 — — 16,370 December 31, 2014 43,517 — 5,134 48,651 Changes in Goodwill 136 — — 136 Goodwill from business combinations 36,425 — — 36,425 December 31, 2015 $ 80,078 $ — $ 5,134 $ 85,212
Summary of Other Intangible Assets	The following table summarizes other intangible assets: (In Thousands) Gross Accumulated Net December 31, 2015 Core deposits $ 10,246 $ (4,512 ) $ 5,734 CB&T intangible 3,142 (1,181 ) 1,961 Array and Arrow intangibles 2,353 (847 ) 1,506 Mortgage servicing rights 1,430 (949 ) 481 Alliance intangible 511 (110 ) 401 Total other intangible assets $ 17,682 $ (7,599 ) $ 10,083 December 31, 2014 Core deposits $ 7,610 $ (3,321 ) $ 4,289 CB&T intangible 3,142 (985 ) 2,157 Array and Arrow intangibles 2,353 (497 ) 1,856 Mortgage servicing rights 1,455 (815 ) 640 Total other intangible assets $ 14,560 $ (5,618 ) $ 8,942
Schedule of Estimated Amortization Expense of Intangibles	The following presents the estimated amortization expense of intangibles: (In Thousands) Amortization 2016 $ 2,010 2017 1,549 2018 1,400 2019 1,238 2020 992 Thereafter 2,894 Total $ 10,083

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2015
Banking and Thrift [Abstract]
Deposits by Category, Including Summary of Remaining Time to Maturity for Time Deposits	The following is a summary of deposits by category, including a summary of the remaining time to maturity for time deposits: December 31, 2015 2014 (In Thousands) Money market and demand: Noninterest-bearing demand $ 958,238 $ 804,678 Interest-bearing demand 784,619 688,370 Money market 1,090,050 1,066,224 Total money market and demand 2,832,907 2,559,272 Savings 439,918 402,032 Customer certificates of deposit by maturity: Less than one year 200,893 188,922 One year to two years 79,760 36,108 Two years to three years 25,256 16,741 Three years to four years 9,642 6,468 Over four years 17,449 5,063 Total customer time certificates 333,000 253,302 Jumbo certificates of deposit (greater than $100,000), by maturity: Less than one year 180,753 206,370 One year to two years 44,776 23,621 Two years to three years 15,256 10,117 Three years to four years 6,685 3,896 Over four years 6,541 3,667 Total jumbo certificates of deposit 254,011 247,671 Total customer deposits 3,859,836 3,462,277 Brokered deposits less than one year 156,730 186,958 Total deposits $ 4,016,566 $ 3,649,235
Interest Expense on Deposits by Category, Followed on Deposits	Interest expense on deposits by category follows: (In Thousands) Year Ended December 31, 2015 2014 2013 Interest-bearing demand $ 666 $ 611 $ 529 Money market 2,466 1,478 1,123 Savings 289 234 217 Time deposits 3,057 4,060 4,712 Total customer interest expense 6,478 6,383 6,581 Brokered deposits 687 768 599 Total interest expense on deposits $ 7,165 $ 7,151 $ 7,180

Borrowed Funds (Tables)

Borrowed Funds (Tables)	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Summary of Borrowed Funds by Type	The following is a summary of borrowed funds by type: At or for the twelve months ended: Balance at Period Weighted Maximum Average Weighted December 31, 2015 (Dollars in Thousands) FHLB advances $ 669,514 0.50 % $ 740,681 $ 621,024 0.48 % Federal funds purchased and securities sold under agreements to repurchase 128,200 0.45 135,550 119,290 0.30 Trust preferred borrowings 67,011 2.15 67,011 67,011 2.03 Senior Debt 55,000 6.25 55,000 55,000 6.85 Other borrowed funds 14,486 0.09 16,808 15,227 0.09 December 31, 2014 FHLB advances $ 405,894 0.52 % $ 758,400 $ 600,172 0.40 % Federal funds purchased and securities sold under agreements to repurchase 128,225 0.29 134,875 128,319 0.29 Trust preferred borrowings 67,011 1.97 67,011 67,011 1.97 Senior Debt 55,000 6.25 55,000 55,000 6.85 Reverse mortgage trust bonds payable — — — 1,627 0.97 Other borrowed funds 11,645 0.08 27,088 20,228 0.09
Advances from FHLB with Rates	Advances from the FHLB with rates ranging from 0.42% to 1.23% at December 31, 2015 are due as follows: (In Thousands) Amount Weighted 2016 $ 597,400 0.47 % 2017 33,315 0.96 2018 38,799 1.10 $ 669,514 0.50
Securities Sold under Agreements to Repurchase with Corresponding Carrying and Fair Values of Underlying Securities	Securities sold under agreements to repurchase with the corresponding carrying and fair values of the underlying securities at December 31, 2014 were due as follows: Borrowing Rate Collateral (In Thousands) Carrying Fair Accrued 2014 Over 90 days $ 25,000 2.98 % $ 35,886 $ 35,549 $ 64

Stockholders' Equity and Regu47

Stockholders' Equity and Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2015
Other Liabilities Disclosure [Abstract]
Schedule of Capital Position	The following table presents the capital position of the Bank and the Company as of December 31, 2015 and 2014: Consolidated Bank For Capital Adequacy To Be Well-Capitalized (In Thousands) Amount Percent Amount Percent Amount Percent As of December 31, 2015 Total Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB $ 618,454 13.11 % $ 377,332 8.00 % $ 471,666 10.00 % WSFS Financial Corporation 595,996 12.62 377,948 8.00 N/A N/A Tier 1 Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB 580,735 12.31 282,999 6.00 377,332 8.00 WSFS Financial Corporation 558,278 11.82 283,461 6.00 N/A N/A Common Equity Tier 1 Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB 580,735 12.31 212,249 4.50 306,583 6.50 WSFS Financial Corporation 494,571 10.47 212,596 4.50 N/A N/A Tier 1 Leverage Capital Wilmington Savings Fund Society, FSB 580,735 10.88 213,502 4.00 266,877 5.00 WSFS Financial Corporation 558,278 10.44 213,849 4.00 N/A N/A As of December 31, 2014 Total Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB $ 531,209 13.83 % $ 307,217 8.00 % $ 384,022 10.00 % WSFS Financial Corporation 533,300 13.86 307,739 8.00 N/A N/A Core Capital (to adjusted tangible assets) Wilmington Savings Fund Society, FSB 491,229 10.25 191,753 4.00 239,692 5.00 WSFS Financial Corporation 493,534 10.56 186,954 4.00 N/A N/A Tangible Capital (to tangible assets) Wilmington Savings Fund Society, FSB 491,229 10.25 71,907 1.50 N/A N/A WSFS Financial Corporation 493,534 10.56 70,108 1.50 N/A N/A Tier 1 Capital (to risk-weighted assets) Wilmington Savings Fund Society, FSB 491,229 12.79 153,609 4.00 230,413 6.00 WSFS Financial Corporation 493,534 12.83 153,869 4.00 N/A N/A

Associate (Employee) Benefit 48

Associate (Employee) Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Periodic Benefit Cost Components of Postretirement Benefits	The following disclosures relating to postretirement benefits were measured at December 31: (In Thousands) 2015 2014 2013 Change in benefit obligation: Benefit obligation at beginning of year $ 2,266 $ 4,560 $ 4,478 Service cost 59 195 343 Interest cost 89 195 176 Actuarial gain (502 ) (1,611 ) (288 ) Benefits paid (107 ) (125 ) (149 ) Plan change — (948 ) — Benefit obligation at end of year $ 1,805 $ 2,266 $ 4,560 Change in plan assets: Fair value of plan assets at beginning of year $ — $ — $ — Employer contributions 107 125 149 Benefits paid (107 ) (125 ) (149 ) Fair value of plan assets at end of year $ — $ — $ — Funded status: Unfunded status $ (1,805 ) $ (2,266 ) $ (4,560 ) Total (income) loss recognized in other comprehensive income (1,271 ) (1,367 ) 1,221 Net amount recognized $ (3,076 ) $ (3,633 ) $ (3,339 ) Components of net periodic benefit cost: Service cost $ 59 $ 195 $ 343 Interest cost 89 195 177 Amortization of transition obligation (76 ) (57 ) — Net (gain) loss recognition (20 ) 86 78 Net periodic benefit cost $ 52 $ 419 $ 598 Assumptions used to determine net periodic benefit cost: Discount rate 4.00 % 5.00 % 4.00 % Health care cost trend rate 5.00 % 5.00 % 5.00 % Sensitivity analysis of health care cost trends: Effect of +1% on service cost plus interest cost $ — $ — $ — Effect of –1% on service cost plus interest cost — — — Effect of +1% on APBO — — — Effect of –1% on APBO — — — Assumptions used to value the Accumulated Postretirement Benefit Obligation (APBO): Discount rate 4.25 % 4.00 % 5.00 % Health care cost trend rate 5.00 % 5.00 % 5.00 % Ultimate trend rate 5.00 % 5.00 % 5.00 % Year of ultimate trend rate 2016 2015 2014
Estimated Future Benefit Payments	The following table shows the expected future payments for the next 10 years: (In Thousands) During 2016 $ 62 During 2017 64 During 2018 65 During 2019 67 During 2020 68 During 2021 through 2025 404 $ 730

Taxes on Income (Tables)

Taxes on Income (Tables)	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Our income tax provision consists of the following: Year Ended December 31, 2015 2014 2013 (In Thousands) Current income taxes: Federal taxes $ 24,237 $ 21,252 $ 22,416 State and local taxes 3,805 3,215 2,759 Deferred income taxes: Federal taxes 2,283 (5,575 ) 875 State and local taxes (52 ) (89 ) (120 ) Total $ 30,273 $ 18,803 $ 25,930
Schedule of Deferred Tax Assets and Liabilities	The following is a summary of the significant components of our deferred tax assets and liabilities as of December 31, 2015 and 2014: (In Thousands) 2015 2014 Deferred tax assets: Unrealized losses on available-for-sale securities $ 57 $ — Allowance for loan losses 12,981 13,799 Purchase accounting adjustments—loans 4,597 3,016 Reserves and other accruals 14,147 10,091 Deferred gains 888 761 Net operating losses 785 1,104 Tax credits 1,664 309 Reverse mortgages 3,290 3,707 Total deferred tax assets before valuation allowance 38,409 32,787 Less: valuation allowance — — Total Deferred tax assets $ 38,409 $ 32,787 Deferred tax liabilities: Unrealized gains on available-for-sale securities $ — $ (1,626 ) Bad debt recapture (954 ) (1,233 ) Accelerated depreciation (1,806 ) (1,915 ) Other (344 ) (267 ) Prepaid expenses (371 ) (741 ) Deferred loan costs (1,209 ) (1,904 ) Intangibles (4,876 ) (3,349 ) Total deferred tax liabilities (9,560 ) (11,035 ) Net deferred tax asset $ 28,849 $ 21,752
Schedule of Effective Income Tax Rate Reconciliation	A reconciliation showing the differences between our effective tax rate and the U.S. Federal statutory tax rate is as follows: Year Ended December 31, 2015 2014 2013 Statutory federal income tax rate 35.0 % 35.0 % 35.0 % State tax, net of federal tax benefit 2.9 2.8 2.4 Nondeductible acquisition costs 0.7 0.2 — Tax-exempt interest (1.9 ) (2.0 ) (1.2 ) Bank-owned life insurance income (0.3 ) (0.3 ) (0.1 ) Incentive stock option and other nondeductible compensation — — 0.3 Tax benefits from previously unconsolidated subsidiary (SASCO) — (9.4 ) — Federal tax credits, net of amortization (0.5 ) (0.5 ) (0.7 ) Other 0.2 0.1 (0.1 ) Effective tax rate 36.1 % 25.9 % 35.6 %

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Assumptions for Options Issued	The assumptions for options issued during 2015, 2014, and 2013 are presented below: 2015 2014 2013 Expected term (in years) 4.9 4.9 3.9 Volatility 25.0 % 29.0 % 30.7 % Weighted-average risk-free interest rate 1.54 % 0.97 % 0.50 % Dividend yield 0.76 % 0.67 % 1.01 %
Summary of Options Including Non-Plan Stock Options	A summary of the status of our options (including Non-Plan Stock Options) as of December 31, 2015, and changes during the year, is presented below: 2015 Shares Weighted- Weighted- Aggregate Stock Options: Outstanding at beginning of year 1,984,035 $ 16.38 4.30 $ 18,444 Granted 73,728 26.24 Exercised (262,512 ) 15.42 Forfeited (147,373 ) 17.23 Outstanding at end of year 1,647,878 17.08 3.74 25,175 Nonvested at end of year 1,028,142 17.58 3.99 15,200 Exercisable at end of year 619,736 16.26 $ 3.33 9,975
Schedule of Nonvested Stock Option Outstanding	The following table provides information about our nonvested stock options outstanding at December 31, 2015: 2015 Shares Weighted- Weighted- Stock Options: Nonvested at beginning of period 1,729,143 $ 16.67 $ 4.76 Granted 73,728 26.24 5.73 Vested (674,948 ) 16.44 4.75 Forfeited (99,781 ) 17.35 4.81 Nonvested at end of period 1,028,142 $ 17.58 $ 4.85
Schedule of RSAs and RSUs	The following table summarizes the Company’s RSAs and RSUs, including performance awards, and changes during the year: Units (in whole) Weighted Average Grant-Date Fair Balance at December 31, 2014 252,615 $ 10.11 Granted 37,986 26.13 Vested (106,434 ) 12.17 Forfeited (12,333 ) 6.92 Balance at December 31, 2015 171,834 $ 12.60

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Summary of Projected Amounts of Future Minimum Payments	The projected amounts of future minimum payments contractually due (in thousands) are as follows: Year Amount 2016 $ 4,962 2017 4,107 2018 3,367 2019 3,396 2020 3,462
Summary of Off-Balance Sheet Financial Instruments	The following represents a summary of off-balance sheet financial instruments at year-end: December 31, 2015 2014 (In Thousands) Financial instruments with contract amounts which represent potential credit risk: Construction loan commitments $ 149,119 $ 99,917 Commercial mortgage loan commitments 22,393 16,110 Commercial loan commitments 506,615 393,028 Commercial owner-occupied commitments 40,052 33,302 Commercial standby letters of credit 49,832 47,667 Residential mortgage loan commitments 2,218 22,617 Consumer loan commitments 189,392 168,391

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Financial Instruments Carried at Fair Value	The following tables present financial instruments carried at fair value as of December 31, 2015 and December 31, 2014 by valuation hierarchy (as described above): (In Thousands) Description Quoted Prices in Significant Significant Total Fair Value Assets measured at fair value on a recurring basis: Available-for-sale securities: CMO $ — $ 251,488 $ — $ 251,488 FNMA MBS — 318,471 — 318,471 FHLMC MBS — 99,442 — 99,442 GNMA MBS — 20,714 — 20,714 GSE — 30,914 30,914 Total assets measured at fair value on a recurring basis — 721,029 — 721,029 Assets measured at fair value on a nonrecurring basis: Other real estate owned $ — $ — $ 5,080 $ 5,080 Loans held-for-sale — 41,807 — 41,807 Impaired loans — — 35,086 35,086 Total assets measured at fair value on a nonrecurring basis $ — $ 41,807 $ 40,166 $ 81,973 Description Quoted Significant (Level 2) Significant Inputs (Level 3) Total Fair Value Assets measured at fair value on a recurring basis: Available-for-sale securities: CMO $ — $ 192,932 $ — $ 192,932 FNMA MBS — 292,553 — 292,553 FHLMC MBS — 146,882 — 146,882 GNMA MBS — 77,797 — 77,797 GSE — 29,960 — 29,960 Total assets measured at fair value on a recurring basis $ — $ 740,124 $ — $ 740,124 Assets measured at fair value on a nonrecurring basis: Other real estate owned $ — $ — $ 5,734 $ 5,734 Loans held-for-sale — 28,508 — 28,508 Impaired loans — — 41,334 41,334 Total assets measured at fair value on a nonrecurring basis $ — $ 28,508 $ 47,068 $ 75,576
Book Value and Estimated Fair Value of Financial Instruments	The book value and estimated fair value of our financial instruments are as follows: (In Thousands) Fair Value Measurement 2015 2014 At December 31, Book Value Fair Value Book Value Fair Value Financial assets: Cash and cash equivalents Level 1 $ 561,179 $ 561,179 $ 508,039 $ 508,039 Investment securities available-for-sale See previous table 721,029 721,029 740,124 740,124 Investment securities held-to-maturity Level 2 165,862 167,743 126,168 126,171 Loans, held-for-sale See previous table 41,807 41,807 28,508 28,508 Loans, net (1) Level 2 3,693,964 3,637,714 3,115,318 3,080,521 Impaired loans, net See previous table 35,086 35,086 41,334 41,334 Reverse Mortgages Level 3 24,284 24,284 29,298 29,298 Stock in Federal Home Loan Bank of Pittsburgh Level 2 30,519 30,519 23,278 23,278 Accrued interest receivable Level 2 14,040 14,040 11,782 11,782 Other assets Level 3 8,669 18,416 5,739 10,577 Financial liabilities: Deposits Level 2 $ 4,016,566 $ 3,791,606 $ 3,649,235 $ 3,461,218 Borrowed funds Level 2 934,211 935,230 667,775 672,850 Standby letters of credit Level 3 195 195 151 151 Accrued interest payable Level 2 801 801 1,004 1,004 (1) Excludes impaired loans, net.

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Details of Segment Information	For the Year Ended December 31, 2015: WSFS Bank Cash Connect Wealth Total (In Thousands) External customer revenues: Interest income $ 174,636 $ — $ 7,940 $ 182,576 Noninterest income 37,042 28,420 22,793 88,255 Total external customer revenues 211,678 28,420 30,733 270,831 Inter-segment revenues: Interest income 3,507 — 6,678 10,185 Noninterest income 7,988 873 96 8,957 Total inter-segment revenues 11,495 873 6,774 19,142 Total revenue 223,173 29,293 37,507 289,973 External customer expenses: Interest expense 15,155 — 621 15,776 Noninterest expenses 129,138 17,270 17,051 163,459 Provision for loan losses 7,476 — 314 7,790 Total external customer expenses 151,769 17,270 17,986 187,025 Inter-segment expenses Interest expense 6,678 1,547 1,960 10,185 Noninterest expenses 969 2,612 5,376 8,957 Total inter-segment expenses 7,647 4,159 7,336 19,142 Total expenses 159,416 21,429 25,322 206,167 Income before taxes $ 63,757 $ 7,864 $ 12,185 $ 83,806 Provision for income taxes 30,273 Consolidated net income $ 53,533 Cash and cash equivalents $ 65,663 $ 493,165 $ 2,351 $ 561,179 Goodwill 80,078 — 5,134 85,212 Other segment assets 4,746,995 192,576 4,939,571 Total segment assets at December 31, 2015 $ 4,892,736 $ 493,165 $ 200,061 $ 5,585,962 Capital expenditures $ 8,017 $ 1,729 $ 22 $ 9,768 For the Year Ended December 31, 2014: WSFS Bank Cash Wealth Total (In Thousands) External customer revenues: Interest income $ 152,545 $ — $ 7,792 $ 160,337 Noninterest income 34,461 25,698 18,119 78,278 Total external customer revenues 187,006 25,698 25,911 238,615 Inter-segment revenues: Interest income 3,405 — 5,558 8,963 Noninterest income 6,814 804 114 7,732 Total inter-segment revenues 10,219 804 5,672 16,695 Total revenue 197,225 26,502 31,583 255,310 External customer expenses: Interest expense 15,409 — 421 15,830 Noninterest expenses 118,853 15,449 12,343 146,645 Provision for loan losses 2,938 — 642 3,580 Total external customer expenses 137,200 15,449 13,406 166,055 Inter-segment expenses Interest expense 5,558 1,384 2,021 8,963 Noninterest expenses 918 2,291 4,523 7,732 Total inter-segment expenses 6,476 3,675 6,544 16,695 Total expenses 143,676 19,124 19,950 182,750 Income before taxes $ 53,549 $ 7,378 $ 11,633 $ 72,560 Provision for income taxes 18,803 Consolidated net income $ 53,757 Cash and cash equivalents $ 73,395 $ 431,527 $ 3,117 $ 508,039 Goodwill 43,517 — 5,134 48,651 Other segment assets 4,107,212 2,006 187,412 4,296,630 Total segment assets at December 31, 2014 $ 4,224,124 $ 433,533 $ 195,663 $ 4,853,320 Capital expenditures $ 3,192 $ 1,531 $ 9 $ 4,732 For the Year Ended December 31, 2013: WSFS Bank Cash Connect Wealth Total (In Thousands) External customer revenues: Interest income $ 139,082 $ — $ 7,840 $ 146,922 Noninterest income 40,479 23,746 15,926 80,151 Total external customer revenues 179,561 23,746 23,766 227,073 Inter-segment revenues: Interest income 3,603 — 5,749 9,352 Noninterest income 6,346 845 109 7,300 Total inter-segment revenues 9,949 845 5,858 16,652 Total revenue 189,510 24,591 29,624 243,725 External customer expenses: Interest expense 14,744 — 590 15,334 Noninterest expenses 106,021 12,950 12,784 131,755 Provision for loan losses 6,759 — 413 7,172 Total external customer expenses 127,524 12,950 13,787 154,261 Inter-segment expenses Interest expense 5,749 1,541 2,062 9,352 Noninterest expenses 954 2,237 4,109 7,300 Total inter-segment expenses 6,703 3,778 6,171 16,652 Total expenses 134,227 16,728 19,958 170,913 Income before taxes $ 55,283 $ 7,863 $ 9,666 $ 72,812 Provision for income taxes 25,930 Consolidated net income $ 46,882 Cash and cash equivalents $ 73,017 $ 408,096 $ 3,313 $ 484,426 Goodwill 27,101 — 5,134 32,235 Other segment assets 3,811,424 1,965 185,713 3,999,102 Total segment assets at December 31, 2013 $ 3,911,542 $ 410,061 $ 194,160 $ 4,515,763 Capital expenditures $ 2,232 $ 628 $ — $ 2,860

Parent Company Financial Info54

Parent Company Financial Information (Tables)	12 Months Ended
	Dec. 31, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Statements of Financial Condition	Condensed Statements of Financial Condition December 31, 2015 2014 (In Thousands) Assets: Cash $ 26,456 $ 54,331 Investment in subsidiaries 667,587 551,784 Investment in Capital Trust III 2,011 2,011 Other assets 7,197 3,436 Total assets $ 703,251 $ 611,562 Liabilities: Trust preferred $ 67,011 $ 67,011 Senior debt 55,000 55,000 Interest payable 413 402 Other liabilities 356 98 Total liabilities 122,780 122,511 Stockholders’ equity: Common stock 560 557 Capital in excess of par value 256,435 201,130 Accumulated other comprehensive income 696 3,500 Retained earnings 570,630 523,099 Treasury stock (247,850 ) (239,235 ) Total stockholders’ equity 580,471 489,051 Total liabilities and stockholders’ equity $ 703,251 $ 611,562
Condensed Statements of Operations	Condensed Statements of Operations Year Ended December 31, 2015 2014 2013 (In Thousands) Income: Interest income $ 1,780 $ 785 $ 2,455 Noninterest income 30,180 74,125 9,983 Reverse mortgage consolidation gain — — 3,801 31,960 74,910 16,239 Expenses: Interest expense 5,124 5,087 5,113 Other operating expenses 233 140 197 5,357 5,227 5,310 Income before equity in undistributed income of subsidiaries 26,603 69,683 10,929 Equity in undistributed income of subsidiaries 25,765 (17,437 ) 35,019 Income before taxes 52,368 52,246 45,948 Income tax benefit 1,165 1,511 934 Dividends on preferred stock and accretion of discount — — (1,633 ) Net income allocable to common stockholders $ 53,533 $ 53,757 $ 45,249
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows Year Ended December 31, 2015 2014 2013 (In Thousands) Operating activities Net income $ 53,533 $ 53,757 $ 46,882 Adjustments to reconcile net income to net cash used for operating activities: Equity in undistributed income of subsidiaries (25,765 ) 17,437 (35,019 ) Reverse mortgage consolidation gain — — (3,801 ) Increase in capitalized interest — — (801 ) Decrease in other assets 3,925 4,217 3,831 Increase in other liabilities 405 203 245 Net cash provided by operating activities 32,098 75,614 11,337 Investing activities Payments for investment in and advances to subsidiaries — (2,225 ) — Sale or repayment of investments in and advances to subsidiaries 1,213 3,676 — Net cash from business combinations (23,096 ) (32,028 ) — Investment in non-marketable securities (3,589 ) — — Net cash used for investing activities (25,472 ) (30,577 ) — Financing activities Issuance of common stock 3,160 3,613 4,353 Redemption of preferred stock — — (52,625 ) Repurchase of common stock warrants — (6,300 ) Payments to repurchase common stock (31,659 ) (2,686 ) — Cash dividends paid (6,002 ) (4,644 ) (5,998 ) Net cash used for financing activities (34,501 ) (10,017 ) (54,270 ) (Decrease) increase in cash (27,875 ) 35,020 (42,933 ) Cash at beginning of period 54,331 19,311 62,244 Cash at end of period $ 26,456 $ 54,331 $ 19,311

Change in Accumulated Other C55

Change in Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	Changes to accumulated other comprehensive income (loss) by component are shown net of taxes in the following tables for the period indicated: (In Thousands) Net change in investment available-for-sale Net change in securities held-to- maturity Net change in defined benefit plan Total Balance, December 31, 2012 $ 13,415 $ — $ (472 ) $ 12,943 Other comprehensive loss before reclassifications (32,057 ) — — (32,057 ) Less: Amounts reclassified from accumulated other comprehensive loss (2,180 ) — — (2,180 ) Net current-period other comprehensive loss (34,237 ) — — (34,237 ) Balance, December 31, 2013 $ (20,822 ) $ — $ (472 ) $ (21,294 ) Other comprehensive income before reclassifications 24,118 — 24,118 Less: Amounts reclassified from accumulated other comprehensive loss (643 ) — 1,319 676 Net current-period other comprehensive income 23,475 — 1,319 24,794 Balance, December 31, 2014 $ 2,653 $ — $ 847 $ 3,500 Other comprehensive loss before reclassifications (1,417 ) — (1,417 ) Less: Amounts reclassified from accumulated other comprehensive income (916 ) (412 ) (59 ) (1,387 ) Net current-period other comprehensive loss (2,333 ) (412 ) (59 ) (2,804 ) Balance, December 31, 2015 $ 320 $ (412 ) $ 788 $ 696
Components of Other Comprehensive Income	Components of other comprehensive income that impact the statement of operations are presented in the table below. Twelve Months Ended Affected line item in Statements of Operations (In Thousands) 2015 2014 2013 Securities available-for-sale: Realized gains on securities transactions $ (1,478 ) $ (1,036 ) $ (3,516 ) Securities gains, net Income taxes 562 393 1,336 Income tax provision Net of tax $ (916 ) $ (643 ) $ (2,180 ) Net unrealized holding gains on securities transferred between available-for-sale and held-to-maturity: Amortization of net unrealized gains to income during the period $ (646 ) $ — $ — Interest income on investment securities Income taxes 234 — — Income tax provision Net of tax $ (412 ) $ — $ — Amortization of Defined Benefit Pension Items: Prior service costs $ (76 ) $ 891 $ — Transition obligation — 246 — Actuarial losses (20 ) 991 — Total before tax $ (96 ) $ 2,128 $ — Salaries, benefits and other compensation Income taxes 37 (809 ) — Income tax provision Net of tax $ (59 ) $ 1,319 $ — Total reclassifications $ (1,387 ) $ 676 $ (2,180 )

Quarterly Financial Summary (Ta

Quarterly Financial Summary (Tables)	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Summary	QUARTERLY FINANCIAL SUMMARY (Unaudited) Three months ended 12/31/2015 9/30/2015 6/30/2015 3/31/2015 12/31/2014 9/30/2014 6/30/2014 3/31/2014 (In Thousands, Except Per Share Data) Interest income $ 51,813 $ 44,857 $ 43,055 $ 42,851 $ 42,340 $ 40,799 $ 39,413 $ 37,785 Interest expense 3,917 3,860 3,965 4,034 4,101 4,052 3,936 3,741 Net interest income 47,896 40,997 39,090 38,817 38,239 36,747 35,477 34,044 Provision for loan losses 1,778 1,453 3,773 786 567 333 50 2,630 Net interest income after provision for loan losses 46,118 39,544 35,317 38,031 37,672 36,414 35,427 31,414 Noninterest income 23,037 21,665 22,458 21,095 19,987 20,304 19,623 18,364 Noninterest expenses 47,187 38,705 38,654 38,913 38,374 39,163 35,224 33,884 Income before taxes 21,968 22,504 19,121 20,213 19,285 17,555 19,826 15,894 Income tax provision (benefit) 7,984 8,078 6,887 7,324 6,577 6,142 7,101 (1,017 ) Net Income $ 13,984 $ 14,426 $ 12,234 $ 12,889 $ 12,708 $ 11,413 $ 12,725 $ 16,911 Earnings per share: Basic $ 0.47 $ 0.52 $ 0.43 $ 0.46 $ 0.45 $ 0.42 $ 0.48 $ 0.63 Diluted 0.46 0.51 0.43 0.45 0.44 0.41 0.46 0.62

Summary of Significant Accoun57

Summary of Significant Accounting Policies - Additional Information (Detail)	1 Months Ended	12 Months Ended
	May. 31, 2015$ / shares	Dec. 31, 2015USD ($)OfficeSecuritiesSubsidiary$ / sharesPaymentsshares	Dec. 31, 2014USD ($)$ / sharesshares	Dec. 31, 2013USD ($)	Mar. 31, 2015$ / sharesshares
Accounting Policies [Line Items]
Number of banking offices		63
Number of unconsolidated affiliate		1
Common stock, shares authorized | shares		65,000,000	65,000,000		65,000,000
Common stock, par value | $ / shares	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Stock split description		Three-for-one stock split
Stock split conversion ratio	3
Stock dividend record date		May 4, 2015
Number of securities are classified | Securities		3
Minimum number of days principal or interest to be considered past due		90 days
Number of consecutive payments for borrower status to be normal, as per consistent repayment record | Payments		6
Charges related to assets acquired through foreclosure | $		$ 276,000	$ 672,000	$ 592,000
Maturity of federal funds purchased		90 days
Settlement of realized tax position		50.00%
Scenario, Previously Reported [Member]
Accounting Policies [Line Items]
Common stock, shares authorized | shares					20,000,000
Common stock, par value | $ / shares					$ 0.01
Computer Equipment [Member]
Accounting Policies [Line Items]
Estimated useful life		3 years
Furniture and Equipment [Member]
Accounting Policies [Line Items]
Estimated useful life		5 years
Building Renovations [Member]
Accounting Policies [Line Items]
Estimated useful life		10 years
Residential Real Estate [Member]
Accounting Policies [Line Items]
Charges related to assets acquired through foreclosure | $		$ 5,700,000
WSFS Capital Trust III [Member]
Accounting Policies [Line Items]
Amount of aggregate principal issued | $		67,000,000
Trust preferred securities redeemed | $		51,500,000
Cypress [Member]
Accounting Policies [Line Items]
Assets under management | $		$ 638,000,000	$ 661,000,000
WSFS Financial Corporation [Member]
Accounting Policies [Line Items]
Number of wholly-owned subsidiaries | Subsidiary		3
Delaware [Member]
Accounting Policies [Line Items]
Number of banking offices		44
Pennsylvania [Member]
Accounting Policies [Line Items]
Number of banking offices		17
Virginia [Member]
Accounting Policies [Line Items]
Number of banking offices		1
Nevada [Member]
Accounting Policies [Line Items]
Number of banking offices		1

Summary of Significant Accoun58

Summary of Significant Accounting Policies - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net income allocable to common shareholders									$ 53,533	$ 53,757	$ 45,249
Denominator:
Denominator for basic earnings per share-weighted average shares									28,435	27,218	26,453
Effect of dilutive employee stock options, restricted stock and warrants									508	690	377
Denominator for diluted earnings per share-adjusted weighted average shares and assumed exercised									28,943	27,908	26,830
Basic:
Net income allocable to common shareholders	$ 0.47	$ 0.52	$ 0.43	$ 0.46	$ 0.45	$ 0.42	$ 0.48	$ 0.63	$ 1.88	$ 1.98	$ 1.71
Diluted:
Net income allocable to common shareholders	$ 0.46	$ 0.51	$ 0.43	$ 0.45	$ 0.44	$ 0.41	$ 0.46	$ 0.62	$ 1.85	$ 1.93	$ 1.69
Outstanding common stock equivalents having no dilutive effect									83	127	1,324

Business Combinations - Additio

Business Combinations - Additional Information (Detail)	Oct. 09, 2015USD ($)$ / sharesshares	Mar. 02, 2015USD ($)shares	Sep. 05, 2014USD ($)$ / sharesshares	Nov. 25, 2013USD ($)shares	Sep. 30, 2016USD ($)	Dec. 31, 2015USD ($)Branch	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Business Acquisition [Line Items]
Assets						$ 5,585,962,000	$ 4,853,320,000	$ 4,515,763,000
Loans						3,729,050,000	3,156,652,000
Deposits						4,016,566,000	3,649,235,000
Goodwill resulting from acquisition of FNBW						85,212,000	48,651,000	32,235,000
Fair value on non-impaired acquired loans	$ 284,900,000
Fair value of acquired impaired loans	22,800,000
Salary and benefits						83,908,000	76,387,000	70,866,000
Professional fees						7,737,000	6,797,000	4,016,000
Marketing expense						3,002,000	2,403,000	2,428,000
Data processing expense						5,949,000	6,105,000	$ 5,924,000
Non Impaired Loans At Acquisition [Member]
Business Acquisition [Line Items]
Contractual balance on acquired loans	294,100,000
Impaired Loans At Acquisition [Member]
Business Acquisition [Line Items]
Gross contractual loans on impaired loans	24,600,000		$ 27,100,000
Alliance Bancorp, Inc. [Member]
Business Acquisition [Line Items]
Transaction value, cash and stock	97,921,000
Cash paid to Alliance stockholders	$ 26,576,000
Common stock shares issued | shares	2,459,120
Goodwill resulting from acquisition of FNBW	$ 36,425,000
Fair value of acquired impaired loans	22,758,000
Fair value of investment portfolio	3,002,000
Business combination, deferred tax asset fair market value adjustment	7,544,000
Valuation adjustment	1,400,000
Alliance Bancorp, Inc. [Member] | Core Deposits [Member]
Business Acquisition [Line Items]
Core deposit intangibles	$ 2,600,000
Amortized period	10 years
Alliance Bancorp, Inc. [Member] | Non-compete Covenants [Member]
Business Acquisition [Line Items]
Core deposit intangibles	$ 511,000
Alliance Bancorp, Inc. [Member] | Non-compete Covenants [Member] | Minimum [Member]
Business Acquisition [Line Items]
Amortized period	6 months
Alliance Bancorp, Inc. [Member] | Non-compete Covenants [Member] | Maximum [Member]
Business Acquisition [Line Items]
Amortized period	18 months
Alliance Bancorp, Inc. [Member] | Acquisition Related Costs [Member]
Business Acquisition [Line Items]
Integration expenses						6,900,000
Salary and benefits						3,400,000
Professional fees						1,900,000
Marketing expense						792,000
Data processing expense						458,000
Alliance Bancorp, Inc. [Member] | Pennsylvania [Member]
Business Acquisition [Line Items]
Transaction value, cash and stock	$ 97,900,000
Cash paid to Alliance stockholders		$ 26,600,000
Common stock shares issued | shares		2,459,120
Alliance Bancorp, Inc. [Member] | NASDAQ Stock Market [Member] | Pennsylvania [Member]
Business Acquisition [Line Items]
Closing share price | $ / shares	$ 29.01
First Wyoming Financial Corporation [Member]
Business Acquisition [Line Items]
Transaction value, cash and stock			64,936,000
Cash paid to Alliance stockholders			$ 32,028,000	$ 32,000,000
Common stock shares issued | shares			1,357,983	1,357,983
Goodwill resulting from acquisition of FNBW			$ 16,506,000			16,506,000	16,370,000
Fair value of acquired impaired loans			17,340,000
Fair value of investment portfolio			41,822,000
Business combination, deferred tax asset fair market value adjustment			3,216,000				$ 3,100,000
First Wyoming Financial Corporation [Member] | Core Deposits [Member]
Business Acquisition [Line Items]
Core deposit intangibles			$ 3,200,000
Amortized period			10 years
First Wyoming Financial Corporation [Member] | NASDAQ Stock Market [Member]
Business Acquisition [Line Items]
Closing share price | $ / shares			$ 24.23
Penn Liberty Financial Corporation [Member]
Business Acquisition [Line Items]
Assets						704,000,000
Loans						510,000,000
Deposits						$ 621,000,000
Number of branch locations | Branch						11
Penn Liberty Financial Corporation [Member] | Scenario, Forecast [Member]
Business Acquisition [Line Items]
Transaction value, cash and stock					$ 101,000,000

Business Combinations - Summary

Business Combinations - Summary of Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Oct. 09, 2015	Sep. 05, 2014	Nov. 25, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liabilities assumed:
Goodwill resulting from acquisition				$ 85,212	$ 48,651	$ 32,235
First Wyoming Financial Corporation [Member]
Consideration Paid:
Common shares issued (2,459,120)		$ 32,908
Cash paid to Alliance stockholders		32,028	$ 32,000
Value of consideration		64,936
Assets acquired:
Cash and due from banks		40,605
Investment securities		41,822
Loans		175,895
Premises and equipment		1,611
Deferred income taxes		3,216			3,100
Bank owned life insurance		12,576
Core deposit intangible		3,240			3,200
Other real estate owned		1,593
Other assets		4,659
Total assets		285,217
Liabilities assumed:
Deposits		228,844
FHLB advances		5,052
Other liabilities		2,891
Total liabilities		236,787
Net assets acquired		48,430
Goodwill resulting from acquisition		$ 16,506		16,506	$ 16,370
Alliance Bancorp, Inc. [Member]
Consideration Paid:
Common shares issued (2,459,120)	$ 71,345
Cash paid to Alliance stockholders	26,576
Value of consideration	97,921
Assets acquired:
Cash and due from banks	67,439
Investment securities	3,002
Loans	307,695
Premises and equipment	2,685
Deferred income taxes	7,544
Bank owned life insurance	12,923
Core deposit intangible	2,635			$ 3,100
Other real estate owned	768
Other assets	2,986
Total assets	407,677
Liabilities assumed:
Deposits	341,682
Other borrowings	2,826
Other liabilities	1,673
Total liabilities	346,181
Net assets acquired	61,496
Goodwill resulting from acquisition	$ 36,425

Business Combinations - Summa61

Business Combinations - Summary of Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed (Parenthetical) (Detail) - shares	Oct. 09, 2015	Sep. 05, 2014	Nov. 25, 2013
First Wyoming Financial Corporation [Member]
Business Acquisition [Line Items]
Common stock shares issued		1,357,983	1,357,983
Alliance Bancorp, Inc. [Member]
Business Acquisition [Line Items]
Common stock shares issued	2,459,120

Business Combinations - Schedul

Business Combinations - Schedule of Changes to Goodwill (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)
Business Acquisition [Line Items]
Goodwill, Beginning balance	$ 48,651
Goodwill, Ending balance	85,212
First Wyoming Financial Corporation [Member]
Business Acquisition [Line Items]
Goodwill, Beginning balance	16,370
Goodwill, Ending balance	16,506
First Wyoming Financial Corporation [Member] | Liability [Member]
Business Acquisition [Line Items]
Effect of adjustments	(100)
First Wyoming Financial Corporation [Member] | Assets [Member]
Business Acquisition [Line Items]
Effect of adjustments	$ 236

Investment Securities - Schedul

Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Available-for-Sale and Held-to-Maturity Investment Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 724,072	$ 739,404
Gross Unrealized Gains	2,619	4,314
Gross Unrealized Losses	5,662	3,594
Fair Value	721,029	740,124
Held-to-Maturity Securities, Amortized Cost	165,862	126,168
Held-to-Maturity Securities, Fair Value	167,743	126,171
CMO [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	253,189	193,672
Gross Unrealized Gains	713	874
Gross Unrealized Losses	2,414	1,614
Fair Value	251,488	192,932
FNMA MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	320,105	291,606
Gross Unrealized Gains	1,081	2,053
Gross Unrealized Losses	2,715	1,106
Fair Value	318,471	292,553
FHLMC MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	99,350	146,742
Gross Unrealized Gains	405	672
Gross Unrealized Losses	313	532
Fair Value	99,442	146,882
GNMA MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	20,387	77,364
Gross Unrealized Gains	420	701
Gross Unrealized Losses	93	268
Fair Value	20,714	77,797
State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-Maturity Securities, Amortized Cost	165,862	126,168
Held-to-Maturity Securities, Gross Unrealized Gains	1,943	3
Held-to-Maturity Securities, Gross Unrealized Losses	62
Held-to-Maturity Securities, Fair Value	167,743	126,171
GSE [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	31,041	30,020
Gross Unrealized Gains		14
Gross Unrealized Losses	127	74
Fair Value	$ 30,914	$ 29,960

Investment Securities - Sched64

Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Available-for-Sale and Held-to-Maturity Investment Securities (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities transferred from available-for-sale to held-to-maturity, net unrealized gain	$ 2.9	$ 3.6

Investment Securities - Sched65

Investment Securities - Schedule of Maturities of Investment Securities Available-for-Sale and Held-to-Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Available-for-sale securities, amortized cost within one year	$ 3,997	$ 10,000
Available-for-sale securities, amortized cost after one year but within five years	30,009	20,020
Available-for-sale securities, amortized cost after five years but within ten years	218,023	134,453
Available-for-sale securities, amortized cost after ten years	472,043	574,931
Available-for-sale securities, amortized cost total	724,072	739,404
Available-for-sale securities, fair value within one year	3,995	10,014
Available-for-sale securities, fair value after one year but within five years	29,840	19,946
Available-for-sale securities, fair value after five years but within ten years	215,018	133,395
Available-for-sale securities, fair value after ten years	472,176	576,769
Available-for-sale securities, fair value total	721,029	740,124
Held-to-maturity securities, amortized cost within one year	1,486	3,608
Held-to-maturity securities, amortized cost after one year but within five years	3,465	6,217
Held-to-maturity securities, amortized cost after five years but within ten years	7,939	9,733
Held-to-maturity securities, amortized cost after ten years	152,972	106,610
Held-to-Maturity Securities, Amortized Cost	165,862	126,168
Held-to-maturity securities, fair value within one year	1,488	3,608
Held-to-maturity securities, fair value after one year but within five years	3,456	6,217
Held-to-maturity securities, after five years but within ten years	8,045	9,736
Held-to-maturity securities, after ten years	154,754	106,610
Held-to-maturity securities, fair value total	$ 167,743	$ 126,171

Investment Securities - Additio

Investment Securities - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 457,000,000	$ 470,400,000	$ 447,700,000
FHLB pledged investment securities	0	0	$ 0
Proceeds from sale of investment securities	192,800,000	227,700,000
Net gains from sale of investment securities	1,500,000	1,000,000
Gains from sale of Available-for-sale securities	1,500,000	1,100,000
Losses from sale of Available-for-sale securities	1,000	60,000
Unamortized premiums	18,300,000
Unaccreted discounts	306,000
Held-to-maturity securities, unrealized loss	62,000	0
Owned investment securities	473,500,000
Total unrealized losses on securities	$ 5,662,000	3,594,000
Weighted average duration of MBS portfolio	4 years 8 months 12 days
Mortgage-Backed Securities ("MBS") [Member]
Schedule of Available-for-sale Securities [Line Items]
OTTI on evaluation of securities	$ 0	$ 0

Investment Securities - Sched67

Investment Securities - Schedule of Investment Securities' Gross Unrealized Losses and Fair Value by Investment Category (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	$ 430,729,000	$ 59,338,000
Available-for-sale securities, Less than 12 months, Unrealized Loss	4,710,000	236,000
Available-for-sale securities, 12 months or longer, Fair Value	32,938,000	271,416,000
Available-for-sale securities, 12 months or longer, Unrealized Loss	952,000	3,358,000
Available-for-sale securities, Total, Fair Value	463,667,000	330,754,000
Available-for-sale securities, Total, Unrealized Loss	5,662,000	3,594,000
Held-to-maturity, Less than 12 months, Fair Value	9,845,000
Held-to-maturity, Less than 12 months, Unrealized Loss	62,000
Held-to-maturity, 12 months or longer, Fair Value	0
Held-to-maturity, 12 months or longer, Unrealized Loss	0
Held-to-maturity, Total, Fair Value	9,845,000
Held-to-maturity, Total, Unrealized Loss	62,000	0
CMO [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	139,486,000	15,492,000
Available-for-sale securities, Less than 12 months, Unrealized Loss	1,703,000	108,000
Available-for-sale securities, 12 months or longer, Fair Value	26,536,000	61,630,000
Available-for-sale securities, 12 months or longer, Unrealized Loss	711,000	1,506,000
Available-for-sale securities, Total, Fair Value	166,022,000	77,122,000
Available-for-sale securities, Total, Unrealized Loss	2,414,000	1,614,000
FNMA MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	214,465,000
Available-for-sale securities, Less than 12 months, Unrealized Loss	2,715,000
Available-for-sale securities, 12 months or longer, Fair Value		103,207,000
Available-for-sale securities, 12 months or longer, Unrealized Loss		1,106,000
Available-for-sale securities, Total, Fair Value	214,465,000	103,207,000
Available-for-sale securities, Total, Unrealized Loss	2,715,000	1,106,000
FHLMC MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	41,791,000	23,901,000
Available-for-sale securities, Less than 12 months, Unrealized Loss	136,000	54,000
Available-for-sale securities, 12 months or longer, Fair Value	4,025,000	58,267,000
Available-for-sale securities, 12 months or longer, Unrealized Loss	177,000	478,000
Available-for-sale securities, Total, Fair Value	45,816,000	82,168,000
Available-for-sale securities, Total, Unrealized Loss	313,000	532,000
GNMA MBS [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	4,073,000
Available-for-sale securities, Less than 12 months, Unrealized Loss	29,000
Available-for-sale securities, 12 months or longer, Fair Value	2,377,000	48,312,000
Available-for-sale securities, 12 months or longer, Unrealized Loss	64,000	268,000
Available-for-sale securities, Total, Fair Value	6,450,000	48,312,000
Available-for-sale securities, Total, Unrealized Loss	93,000	268,000
GSE [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	30,914,000	19,945,000
Available-for-sale securities, Less than 12 months, Unrealized Loss	127,000	74,000
Available-for-sale securities, Total, Fair Value	30,914,000	19,945,000
Available-for-sale securities, Total, Unrealized Loss	127,000	$ 74,000
State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity, Less than 12 months, Fair Value	9,845,000
Held-to-maturity, Less than 12 months, Unrealized Loss	62,000
Held-to-maturity, 12 months or longer, Fair Value	0
Held-to-maturity, 12 months or longer, Unrealized Loss	0
Held-to-maturity, Total, Fair Value	9,845,000
Held-to-maturity, Total, Unrealized Loss	$ 62,000

Acquired Credit Impaired Loan68

Acquired Credit Impaired Loans - Additional Information (Detail)	3 Months Ended								12 Months Ended
	Dec. 31, 2015USD ($)SecurityLoan	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Sep. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Dec. 31, 2015USD ($)SecurityLoan	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Oct. 09, 2015USD ($)	Sep. 05, 2014USD ($)
Financing Receivable, Impaired [Line Items]
Acquired credit impaired loans	$ 2,900,000								$ 2,900,000
Provision for loan loss	$ 1,778,000	$ 1,453,000	$ 3,773,000	$ 786,000	$ 567,000	$ 333,000	$ 50,000	$ 2,630,000	$ 7,790,000	$ 3,580,000	$ 7,172,000
Alliance Bancorp, Inc. [Member]
Financing Receivable, Impaired [Line Items]
Acquired credit impaired loans												$ 24,600,000
Impaired loans acquired date									Oct. 9, 2015
Number of loans acquired | SecurityLoan	2								2
Allowance for loan losses, description									At December 31, 2015, there were two acquired loans from Alliance accounted for under FASB ASC 310-20, Nonrefundable Fees and Other Costs(ASC 310-20) classified as nonaccrual loans with a carrying value of $86,000. Credit deterioration evident in the loans was included in the determination of the fair value of the loans at the acquisition date.
Loans classified as non accrual loans carrying value	$ 86,000								$ 86,000
Provision for loan loss									132,000
First Wyoming Financial Corporation [Member]
Financing Receivable, Impaired [Line Items]
Acquired credit impaired loans													$ 24,200,000
Loans classified as non accrual loans carrying value	$ 302,000								$ 302,000

Acquired Credit Impaired Loan69

Acquired Credit Impaired Loans - Schedule of Loans Acquired Through Merger in Accordance with FASB ASC 310-30 (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Oct. 09, 2015	Sep. 05, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required principal and interest at acquisition	$ 3,500	$ 27,469	$ 24,200
Fair value of acquired loans accounted for under FASB ASC 310-30		22,800
Alliance Bancorp, Inc. [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required principal and interest at acquisition		27,469
Contractual cash flows not expected to be collected (nonaccretable difference)		2,377
Expected cash flows at acquisition		25,092
Interest component of expected cash flows (accretable yield)		2,334
Fair value of acquired loans accounted for under FASB ASC 310-30		22,758
Expected cash flows at acquisition		$ 25,092
First Wyoming Financial Corporation [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractually required principal and interest at acquisition			27,086
Contractual cash flows not expected to be collected (nonaccretable difference)			7,956
Expected cash flows at acquisition			19,130
Interest component of expected cash flows (accretable yield)			1,790
Fair value of acquired loans accounted for under FASB ASC 310-30			17,340
Expected cash flows at acquisition			$ 19,130

Acquired Credit Impaired Loan70

Acquired Credit Impaired Loans - Schedule of Loans Acquired Through Merger in Accordance with FASB ASC 310-30 (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Oct. 09, 2015	Sep. 05, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractual interest to be received	$ 3,500	$ 27,469	$ 24,200
Impaired Loans At Acquisition [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Contractual interest to be received on impaired loans		$ 24,600	$ 27,100

Acquired Credit Impaired Loan71

Acquired Credit Impaired Loans - Schedule of Outstanding Principal Balance and Carrying Amounts for Acquired Credit-Impaired Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Receivables [Abstract]
Outstanding principal balance	$ 38,067	$ 22,752
Carrying amount	32,568	$ 15,893
Allowance for loan losses	$ 132

Acquired Credit Impaired Loan72

Acquired Credit Impaired Loans - Summary of Changes in Accretable Yield on Acquired Credit Impaired Loans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 1,498	$ 1,790
Accretion	(1,405)	(250)
Reclassification from nonaccretable difference	3,054
Additions/adjustments	714	42
Disposals	(3)
Ending balance	4,764	$ 1,498
Alliance Bancorp, Inc. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Additions/adjustments	$ 2,334

Loans - Summary of Loan Portfol

Loans - Summary of Loan Portfolio by Category (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 3,774,639	$ 3,202,498
Deferred fees, net	8,500	6,420
Allowance for loan losses	37,089	39,426	$ 41,244
Net loans	3,729,050	3,156,652
Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	360,249	327,543
Allowance for loan losses	5,964	6,041	6,494
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,061,597	920,072
Owner- Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	880,643	788,598
Allowance for loan losses	6,670	6,643	7,638
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	966,698	805,459
Allowance for loan losses	6,487	7,266	6,932
Construction Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	245,773	142,497
Allowance for loan losses	3,521	2,596	$ 3,326
Residential (1-4 Family) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 259,679	$ 218,329

Loans - Additional Information

Loans - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loans [Line Items]
Nonaccruing loans	$ 21,200,000	$ 24,100,000	$ 31,000,000
Potential increase in net interest income	946,000	800,000	1,000,000
Accrued interest receivable	14,040,000	11,782,000
Loans Receivable [Member]
Loans [Line Items]
Accrued interest receivable	10,400,000	8,500,000
First Mortgage [Member]
Loans [Line Items]
Amounts of loans serviced	130,000,000	153,300,000	229,800,000
Fees from servicing of loans	309,000	285,000	$ 342,000
Value of mortgage servicing rights	481,000	321,000
First Mortgage [Member] | Servicing Rights [Member]
Loans [Line Items]
Net losses	$ 160,000	$ 98,000

Allowance for Loan Losses and75

Allowance for Loan Losses and Credit Quality Information - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Dec. 31, 2015USD ($)	Dec. 31, 2015USD ($)SecurityLoan	Dec. 31, 2014USD ($)SecurityLoan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net charge-offs | $		$ 10,100,000	$ 5,400,000
Percentage of average loans annualized, charged-offs		0.29%	0.18%
Troubled debt restructurings charged off | $	$ 166,000	$ 166,000	$ 54,000
Interest income on impaired loans | $		1,600,000	1,800,000
Balance of troubled debt restructurings | $	24,600,000	24,600,000	36,200,000
TDRs in nonaccrual status | $		11,000,000	13,600,000
TDRs in accrual status | $		13,600,000	22,600,000
Troubled debt restructuring related reserves | $	2,100,000	$ 2,100,000	4,200,000
Number of term loans modified in troubled debt restructurings		33
Usual sustained repayment performance period		6 months
Increase in allowance for loan losses | $		$ 18,000	$ 2,200,000
Commercial and Industrial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net charge-offs | $	9,100,000
Troubled debt restructurings charged off | $	5,700,000	5,700,000
Commercial Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of increase (decrease) on total allowance | $		$ 1,300,000
Number of commercial loans		3	12
Total loans outstanding,commercial loans | $	$ 675,000	$ 675,000	$ 1,100,000
Number of term loans modified in troubled debt restructurings		1
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of residential loans in the process of foreclosure		32	36
Total loans outstanding, residential loans | $		$ 5,000,000	$ 4,400,000
Number of term loans modified in troubled debt restructurings		10
Number of restructured loans extension of maturities		3
Number of term loans modified in troubled debt restructurings, discharged bankruptcies		3
Number of term loans modified in troubled debt restructurings, rate concession		1
Number of term loans modified in troubled debt restructurings of forbearance agreements		2
Number of term loans modified in troubled debt restructurings, credit exception		1
Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of term loans modified in troubled debt restructurings		22
Number of restructured loans extension of maturities		7
Number of term loans modified in troubled debt restructurings, discharged bankruptcies		9
Number of term loans modified in troubled debt restructurings, rate concession		6
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period for impairment loans		90 days
Total Residential and Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impairment loans, charge off period		90 days
Retail Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Calculated pooled reserves for retail loans		Pooled reserves for retail loans are calculated based solely on average net loss rates over the same 20 quarter look-back period.

Allowance for Loan Losses and76

Allowance for Loan Losses and Credit Quality Information - Schedule of Allowance for Loan Losses and Loan Balances (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 39,426	$ 41,244
Charge-offs	(12,095)	(8,851)
Recoveries	1,968	3,453
Provision (credit) for loan losses	7,440	3,580
Provision for acquired loans	350
Ending balance	37,089	39,426
Loans individually evaluated for impairment	2,492	5,317
Loans collectively evaluated for impairment	34,465	34,109
Acquired loans evaluated for impairment	132
Ending balance	37,089	39,426
Loans individually evaluated for impairment	34,812	46,651
Loans collectively evaluated for impairment	3,335,992	2,994,180
Acquired nonimpaired loans	371,148	145,774
Acquired impaired loans	32,687	15,893
Ending balance	3,774,639	3,202,498
Commercial Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	12,837	12,751
Charge-offs	(6,303)	(3,587)
Recoveries	301	1,611
Provision (credit) for loan losses	4,241	2,062
Provision for acquired loans	80
Ending balance	11,156	12,837
Loans individually evaluated for impairment	1,164	3,034
Loans collectively evaluated for impairment	9,988	9,803
Acquired loans evaluated for impairment	4
Ending balance	11,156	12,837
Loans individually evaluated for impairment	5,680	12,381
Loans collectively evaluated for impairment	930,346	872,398
Acquired nonimpaired loans	112,586	32,024
Acquired impaired loans	12,985	3,269
Ending balance	1,061,597	920,072
Owner- Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	6,643	7,638
Charge-offs	(738)	(1,085)
Recoveries	77	249
Provision (credit) for loan losses	665	(159)
Provision for acquired loans	23
Ending balance	6,670	6,643
Loans individually evaluated for impairment		609
Loans collectively evaluated for impairment	6,648	6,034
Acquired loans evaluated for impairment	22
Ending balance	6,670	6,643
Loans individually evaluated for impairment	1,090	2,474
Loans collectively evaluated for impairment	820,911	743,680
Acquired nonimpaired loans	53,954	40,180
Acquired impaired loans	4,688	2,264
Ending balance	880,643	788,598
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	7,266	6,932
Charge-offs	(1,135)	(425)
Recoveries	222	202
Provision (credit) for loan losses	(67)	557
Provision for acquired loans	201
Ending balance	6,487	7,266
Loans individually evaluated for impairment		319
Loans collectively evaluated for impairment	6,384	6,947
Acquired loans evaluated for impairment	103
Ending balance	6,487	7,266
Loans individually evaluated for impairment	3,411	8,335
Loans collectively evaluated for impairment	869,359	753,451
Acquired nonimpaired loans	83,415	37,697
Acquired impaired loans	10,513	5,976
Ending balance	966,698	805,459
Construction Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	2,596	3,326
Charge-offs	(146)	(88)
Recoveries	185	242
Provision (credit) for loan losses	852	(884)
Provision for acquired loans	34
Ending balance	3,521	2,596
Loans individually evaluated for impairment	211	334
Loans collectively evaluated for impairment	3,310	2,262
Ending balance	3,521	2,596
Loans individually evaluated for impairment	1,419	1,419
Loans collectively evaluated for impairment	213,801	127,324
Acquired nonimpaired loans	27,009	9,891
Acquired impaired loans	3,544	3,863
Ending balance	245,773	142,497
Estimation/Complexity Risk [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	1,520	1,025
Provision (credit) for loan losses	(510)	495
Ending balance	1,010	1,520
Loans collectively evaluated for impairment	1,010	1,520
Ending balance	1,010	1,520
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	2,523	3,078
Charge-offs	(548)	(811)
Recoveries	226	168
Provision (credit) for loan losses	76	88
Provision for acquired loans	4
Ending balance	2,281	2,523
Loans individually evaluated for impairment	918	790
Loans collectively evaluated for impairment	1,360	1,733
Acquired loans evaluated for impairment	3
Ending balance	2,281	2,523
Loans individually evaluated for impairment	15,548	15,666
Loans collectively evaluated for impairment	166,252	184,788
Acquired nonimpaired loans	76,929	17,363
Acquired impaired loans	950	512
Ending balance	259,679	218,329
Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	6,041	6,494
Charge-offs	(3,225)	(2,855)
Recoveries	957	981
Provision (credit) for loan losses	2,183	1,421
Provision for acquired loans	8
Ending balance	5,964	6,041
Loans individually evaluated for impairment	199	231
Loans collectively evaluated for impairment	5,765	5,810
Ending balance	5,964	6,041
Loans individually evaluated for impairment	7,664	6,376
Loans collectively evaluated for impairment	335,323	312,539
Acquired nonimpaired loans	17,255	8,619
Acquired impaired loans	7	9
Ending balance	$ 360,249	$ 327,543

Allowance for Loan Losses and77

Allowance for Loan Losses and Credit Quality Information - Schedule of Allowance for Loan Losses and Loan Balances (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Receivables [Abstract]
Accrued troubled debt restructured loans	$ 13.6	$ 22.6

Allowance for Loan Losses and78

Allowance for Loan Losses and Credit Quality Information - Summary of Nonaccrual and Past Due Loans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	$ 28,205	$ 7,381
Accruing Current Balances, Total	3,692,582	3,155,173
Acquired Impaired Loans, Total	32,687	15,893
Nonaccrual Loans, Total	21,165	24,051
Total Loans	$ 3,774,639	$ 3,202,498
30-59 Days Past Due and Still Accruing, % of Total Loans	0.24%	0.20%
60-89 Days Past Due and Still Accruing, % of Total Loans	0.03%	0.03%
Greater Than 90 Days Past Due and Still Accruing, % of Total Loans	0.48%	0.00%
Total Past Due And Still Accruing, % of Total Loans	0.75%	0.23%
Accruing Current Balances, % of Total Loans	97.83%	98.52%
Acquired Impaired Loans, % of Total Loans	0.86%	0.50%
Nonaccrual Loans, % of Total Loans	0.56%	0.75%
% of Total Loans	100.00%	100.00%
Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	$ 6,135	$ 4,483
Accruing Current Balances, Total	245,307	206,266
Acquired Impaired Loans, Total	950	512
Nonaccrual Loans, Total	7,287	7,068
Total Loans	259,679	218,329
Consumer Loan Commitments [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	1,510	1,587
Accruing Current Balances, Total	354,599	322,390
Acquired Impaired Loans, Total	7	9
Nonaccrual Loans, Total	4,133	3,557
Total Loans	360,249	327,543
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	9,025	6,431
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	5,263	3,879
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Loan Commitments [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	1,222	1,241
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	1,148	946
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	621	604
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Loan Commitments [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	36	342
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	18,032	4
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	251
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Loan Commitments [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	252	4
Commercial Loan Commitments [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	14,311	715
Accruing Current Balances, Total	1,028,973	913,382
Acquired Impaired Loans, Total	12,985	3,269
Nonaccrual Loans, Total	5,328	2,706
Total Loans	1,061,597	920,072
Commercial Loan Commitments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	1,686	715
Commercial Loan Commitments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	270
Commercial Loan Commitments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	12,355
Owner- Occupied Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	5,816	393
Accruing Current Balances, Total	869,048	783,466
Acquired Impaired Loans, Total	4,688	2,264
Nonaccrual Loans, Total	1,091	2,475
Total Loans	880,643	788,598
Owner- Occupied Commercial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	713	393
Owner- Occupied Commercial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	217
Owner- Occupied Commercial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	4,886
Commercial Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	433	203
Accruing Current Balances, Total	952,426	791,035
Acquired Impaired Loans, Total	10,513	5,976
Nonaccrual Loans, Total	3,326	8,245
Total Loans	966,698	805,459
Commercial Mortgages [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	141	203
Commercial Mortgages [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	4
Commercial Mortgages [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	288
Construction Loan Commitments [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Current Balances, Total	242,229	138,634
Acquired Impaired Loans, Total	3,544	3,863
Total Loans	$ 245,773	$ 142,497

Allowance for Loan Losses and79

Allowance for Loan Losses and Credit Quality Information - Summary of Nonaccrual and Past Due Loans (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Receivables [Abstract]
Acquired non-impaired loans	$ 371,148	$ 145,774

Allowance for Loan Losses and80

Allowance for Loan Losses and Credit Quality Information - Analysis of Impaired Loans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	$ 37,710	$ 46,651
Loans with No Related Reserve	20,983	17,802
Loans with Related Reserve	16,727	28,849
Related Reserve	2,624	5,317
Contractual Principal Balances	64,406	66,563
Average Loan Balances	42,555	45,629
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	15,710	15,666
Loans with No Related Reserve	9,034	7,068
Loans with Related Reserve	6,676	8,598
Related Reserve	920	790
Contractual Principal Balances	18,655	18,967
Average Loan Balances	15,264	17,296
Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	7,665	6,376
Loans with No Related Reserve	6,498	3,557
Loans with Related Reserve	1,167	2,819
Related Reserve	200	231
Contractual Principal Balances	9,353	7,162
Average Loan Balances	6,801	5,902
Commercial Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	6,137	12,381
Loans with No Related Reserve	951	580
Loans with Related Reserve	5,186	11,801
Related Reserve	1,168	3,034
Contractual Principal Balances	20,206	20,924
Average Loan Balances	9,391	5,952
Owner- Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	2,127	2,474
Loans with No Related Reserve	1,090	1,865
Loans with Related Reserve	1,037	609
Related Reserve	22	609
Contractual Principal Balances	2,947	3,708
Average Loan Balances	2,111	4,461
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	4,652	8,335
Loans with No Related Reserve	3,410	4,732
Loans with Related Reserve	1,242	3,603
Related Reserve	103	319
Contractual Principal Balances	11,826	14,383
Average Loan Balances	7,540	11,005
Construction Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	1,419	1,419
Loans with Related Reserve	1,419	1,419
Related Reserve	211	334
Contractual Principal Balances	1,419	1,419
Average Loan Balances	$ 1,448	$ 1,013

Allowance for Loan Losses and81

Allowance for Loan Losses and Credit Quality Information - Analysis of Impaired Loans (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Oct. 09, 2015	Sep. 05, 2014
Receivables [Abstract]
Acquired impaired loans	$ 2,900
Contractual principal balance	$ 3,500	$ 27,469	$ 24,200

Allowance for Loan Losses and82

Allowance for Loan Losses and Credit Quality Information - Schedule of Commercial Credit Exposure (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	100.00%	100.00%
Total Commercial Loans	$ 3,154,711	$ 2,656,626
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	27,478	20,798
Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	67,627	67,065
Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	8,580	11,017
Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	$ 1,164	$ 4,296
Total Special Mention and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	3.00%	4.00%
Total Commercial Loans	$ 104,849	$ 103,176
Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	1.00%	1.00%
Total Commercial Loans	$ 31,730	$ 15,372
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	96.00%	95.00%
Total Commercial Loans	$ 3,018,132	$ 2,538,078
Commercial Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	1,061,597	920,072
Commercial Loan Commitments [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	5,620	4,744
Commercial Loan Commitments [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	33,883	42,377
Commercial Loan Commitments [Member] | Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	4,164	1,225
Commercial Loan Commitments [Member] | Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	1,164	3,034
Commercial Loan Commitments [Member] | Total Special Mention and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	44,831	51,380
Commercial Loan Commitments [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	12,985	3,269
Commercial Loan Commitments [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	1,003,781	865,423
Owner- Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	880,643	788,598
Owner- Occupied Commercial [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	9,535	6,989
Owner- Occupied Commercial [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	22,901	14,436
Owner- Occupied Commercial [Member] | Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	1,090	1,865
Owner- Occupied Commercial [Member] | Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans		609
Owner- Occupied Commercial [Member] | Total Special Mention and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	33,526	23,899
Owner- Occupied Commercial [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	4,688	2,264
Owner- Occupied Commercial [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	842,429	762,435
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	966,698	805,459
Commercial Mortgages [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	12,323	9,065
Commercial Mortgages [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	2,547	9,167
Commercial Mortgages [Member] | Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	3,326	7,927
Commercial Mortgages [Member] | Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans		319
Commercial Mortgages [Member] | Total Special Mention and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	18,196	26,478
Commercial Mortgages [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	10,513	5,976
Commercial Mortgages [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	937,989	773,005
Construction Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	245,773	142,497
Construction Loan Commitments [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	8,296	1,085
Construction Loan Commitments [Member] | Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans		334
Construction Loan Commitments [Member] | Total Special Mention and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	8,296	1,419
Construction Loan Commitments [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	3,544	3,863
Construction Loan Commitments [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	$ 233,933	$ 137,215

Allowance for Loan Losses and83

Allowance for Loan Losses and Credit Quality Information - Schedule of Commercial Credit Exposure (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired non-impaired loans	$ 371,148	$ 145,774
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired non-impaired loans	$ 277,000	$ 119,800

Allowance for Loan Losses and84

Allowance for Loan Losses and Credit Quality Information - Schedule of Residential and Consumer Credit Exposure (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 3,774,639	$ 3,202,498
Total	100.00%	100.00%
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 259,679	$ 218,329
Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	360,249	327,543
Nonperforming Financing Receivable [Member] | Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	15,548	15,666
Nonperforming Financing Receivable [Member] | Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	7,664	6,376
Performing Financing Receivable [Member] | Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	243,181	202,151
Performing Financing Receivable [Member] | Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 352,578	$ 321,158
Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1.00%	1.00%
Acquired Impaired Loans [Member] | Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 950	$ 512
Acquired Impaired Loans [Member] | Consumer Loan Commitments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	7	9
Total Residential and Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 619,928	$ 545,872
Total	100.00%	100.00%
Total Residential and Consumer Loan [Member] | Nonperforming Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 23,212	$ 22,042
Total	4.00%	4.00%
Total Residential and Consumer Loan [Member] | Performing Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 595,759	$ 523,309
Total	96.00%	96.00%
Total Residential and Consumer Loan [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 957	$ 521

Allowance for Loan Losses and85

Allowance for Loan Losses and Credit Quality Information - Schedule of Residential and Consumer Credit Exposure (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-performing loans of troubled debt restructured mortgages and home equity installment loans	$ 13,600	$ 11,400
Acquired nonimpaired loans	371,148	145,774
Total Residential and Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired nonimpaired loans	$ 94,200	$ 26,000

Allowance for Loan Losses and86

Allowance for Loan Losses and Credit Quality Information - Schedule of Loans Identified as Troubled Debt Restructurings During Periods Indicated (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Modifications [Line Items]
Total loans identified during the period	$ 3,087	$ 17,879
Commercial Loan Commitments [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period		9,356
Residential [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period	895	2,062
Consumer Loan Commitments [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period	1,615	1,612
Owner- Occupied Commercial [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period	$ 577
Commercial Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period		3,430
Construction Loan Commitments [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period		$ 1,419

Reverse Mortgage Loans - Additi

Reverse Mortgage Loans - Additional Information (Detail)	1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 31, 2011USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2015USD ($)Loans	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Reverse Mortgage Loan Activities [Line Items]
Income tax benefit			$ (30,273,000)	$ (18,803,000)	$ (25,930,000)
Consolidated mortgage investment		$ 24,300,000	$ 24,300,000
Number of loans | Loans			93
Average age of a mortgage backed securities borrower			94 years
Realizable collateral value of mortgage backed securities		46,800,000	$ 46,800,000
Forecasted housing prices increase rate			2.50%
Forecasted housing prices increase rate, following year and thereafter			2.00%
Internal rate of return			19.06%
Cash payments to reverse mortgages		5,400,000	$ 5,400,000
Decrease in income		$ 337,000
Reduction in collateral value		1.00%
Maximum [Member]
Reverse Mortgage Loan Activities [Line Items]
Net present value increase (decrease)			$ 876,000
Increase (decrease) in present value of IRR			1.00%
Minimum [Member]
Reverse Mortgage Loan Activities [Line Items]
Percentage of increase decrease in home value			50.00%
Net present value increase (decrease)			$ 855,000
Increase (decrease) in present value of IRR			(1.00%)
Zero Collateral Value [Member]
Reverse Mortgage Loan Activities [Line Items]
Internal rate of return		18.07%
Decrease in income		$ 731,000
Collateral Value Reduced by One Percent [Member]
Reverse Mortgage Loan Activities [Line Items]
Internal rate of return		18.60%
SASCO 2002-RM1's Class O Securities [Member]
Reverse Mortgage Loan Activities [Line Items]
Income tax benefit			$ 6,700,000
SASCO 2002-RM1's Class O Securities [Member] | Mortgage-Backed Securities ("MBS") [Member]
Reverse Mortgage Loan Activities [Line Items]
Trading securities, par value	$ 2,500,000
Investments purchase percentage	100.00%

Reverse Mortgages and Related A

Reverse Mortgages and Related Assets - Summary of Estimated Cash Payments to Reverse Mortgagors (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Mortgage Banking [Abstract]
2,016	$ 594
2,017	475
2,018	376
2,019	294
2,020	228
Years 2021 - 2025	529
Years 2026 - 2030	106
Years 2031- 2035	15
Thereafter	2
Total	$ 2,619

Premises and Equipment - Summar

Premises and Equipment - Summary of Premises and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 78,150	$ 67,412
Accumulated depreciation	38,581	32,338
Property, plant and equipment, net	39,569	35,074
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,325	2,052
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6,878	4,791
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	37,123	35,925
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 31,824	$ 24,644

Premises and Equipment - Additi

Premises and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Rent expense of operating leases	$ 9.9	$ 9.5	$ 9.1
Minimum [Member]
Property, Plant and Equipment [Line Items]
Operating leases, lease terms	1 year
Maximum [Member]
Property, Plant and Equipment [Line Items]
Operating leases, lease terms	25 years
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Building Renovations [Member]
Property, Plant and Equipment [Line Items]
Useful life	10 years

Premises and Equipment - Summ91

Premises and Equipment - Summary of Future Minimum Cash Payments (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Property Plant and Equipment Useful Life and Values [Abstract]
2,016	$ 9,178
2,017	8,971
2,018	8,931
2,019	8,923
2,020	8,968
Thereafter	158,050
Total future minimum lease payments	$ 203,021

Goodwill and Intangible Asset92

Goodwill and Intangible Assets - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)SegmentSegments	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Oct. 09, 2015USD ($)	Sep. 05, 2014USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 85,212	$ 48,651	$ 32,235
Number of operating segments | Segment	3
Description of reporting units for operating segments	Our operating segments may contain one or more reporting units depending on economic characteristics, products and customers.
Amortization expense on other intangible assets	$ 1,847	1,263	962
First Wyoming Financial Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	16,506	16,370			$ 16,506
Intangible assets		3,200			$ 3,240
Alliance Bancorp, Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill				$ 36,425
Intangible assets	$ 3,100			$ 2,635
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Number of Reporting units | Segments	1
WSFS Financial Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 80,100
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense on other intangible assets	$ 2,000	$ 1,300	$ 1,000

Goodwill and Intangible Asset93

Goodwill and Intangible Assets - Schedule of Allocation of Goodwill to Our Reportable Operating Segments for Purposes of Goodwill Impairment Testing (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Goodwill, Beginning balance	$ 48,651	$ 32,235
Changes in Goodwill	136	46	$ (160)
Goodwill from business combinations	36,425	16,370
Goodwill, Ending balance	85,212	48,651	32,235
WSFS Bank [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	43,517	27,101
Changes in Goodwill	136	46
Goodwill from business combinations	36,425	16,370
Goodwill, Ending balance	80,078	43,517	27,101
Trust & Wealth Management [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	5,134	5,134
Goodwill, Ending balance	$ 5,134	$ 5,134	$ 5,134

Goodwill and Intangible Asset94

Goodwill and Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 17,682	$ 14,560
Accumulated Amortization	(7,599)	(5,618)
Net Intangible Assets	10,083	8,942
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	10,246	7,610
Accumulated Amortization	(4,512)	(3,321)
Net Intangible Assets	5,734	4,289
CB&T Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	3,142	3,142
Accumulated Amortization	(1,181)	(985)
Net Intangible Assets	1,961	2,157
Array and Arrow Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	2,353	2,353
Accumulated Amortization	(847)	(497)
Net Intangible Assets	1,506	1,856
Mortgage Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	1,430	1,455
Accumulated Amortization	(949)	(815)
Net Intangible Assets	481	$ 640
Alliance Intangible [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	511
Accumulated Amortization	(110)
Net Intangible Assets	$ 401

Goodwill and Intangible Asset95

Goodwill and Intangible Assets - Schedule of Estimated Amortization Expense of Intangibles (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
2,016	$ 2,010
2,017	1,549
2,018	1,400
2,019	1,238
2,020	992
Thereafter	2,894
Net Intangible Assets	$ 10,083	$ 8,942

Deposits - Deposits by Category

Deposits - Deposits by Category, Including Summary of Remaining Time to Maturity for Time Deposits (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Banking and Thrift, Interest [Abstract]
Noninterest-bearing demand	$ 958,238	$ 804,678
Interest-bearing demand	784,619	688,370
Money market	1,090,050	1,066,224
Total money market and demand	2,832,907	2,559,272
Savings	439,918	402,032
Less than one year	200,893	188,922
One year to two years	79,760	36,108
Two years to three years	25,256	16,741
Three years to four years	9,642	6,468
Over four years	17,449	5,063
Total customer time certificates	333,000	253,302
Less than one year	180,753	206,370
One year to two years	44,776	23,621
Two years to three years	15,256	10,117
Three years to four years	6,685	3,896
Over four years	6,541	3,667
Total jumbo certificates of deposit	254,011	247,671
Total customer deposits	3,859,836	3,462,277
Brokered deposits less than one year	156,730	186,958
Total deposits	$ 4,016,566	$ 3,649,235

Deposits - Interest Expense on

Deposits - Interest Expense on Deposits by Category, Followed on Deposits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Banking and Thrift, Interest [Abstract]
Interest-bearing demand	$ 666	$ 611	$ 529
Money market	2,466	1,478	1,123
Savings	289	234	217
Time deposits	3,057	4,060	4,712
Total customer interest expense	6,478	6,383	6,581
Brokered deposits	687	768	599
Total interest expense on deposits	$ 7,165	$ 7,151	$ 7,180

Borrowed Funds - Summary of Bor

Borrowed Funds - Summary of Borrowed Funds by Type (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance at End of Period	$ 669,514,000	$ 405,894,000
Weighted Average Interest Rate	0.50%	0.52%
Maximum Outstanding at Month End During the Period	$ 740,681,000	$ 758,400,000
Average Amount Outstanding During the Period	$ 621,024,000	$ 600,172,000
Weighted Average Interest Rate During the Period	0.48%	0.40%
Reverse Mortgage Trust Bonds Payable [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Average Amount Outstanding During the Period		$ 1,627,000
Weighted Average Interest Rate During the Period		0.97%
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance at End of Period	$ 128,200,000	$ 128,225,000
Weighted Average Interest Rate	0.45%	0.29%
Maximum Outstanding at Month End During the Period	$ 135,550,000	$ 134,875,000
Average Amount Outstanding During the Period	$ 119,290,000	$ 128,319,000
Weighted Average Interest Rate During the Period	0.30%	0.29%
Trust Preferred Borrowings [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance at End of Period	$ 67,011,000	$ 67,011,000
Weighted Average Interest Rate	2.15%	1.97%
Maximum Outstanding at Month End During the Period	$ 67,011,000	$ 67,011,000
Average Amount Outstanding During the Period	$ 67,011,000	$ 67,011,000
Weighted Average Interest Rate During the Period	2.03%	1.97%
Senior Debt [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance at End of Period	$ 55,000,000	$ 55,000,000
Weighted Average Interest Rate	6.25%	6.25%
Maximum Outstanding at Month End During the Period	$ 55,000,000	$ 55,000,000
Average Amount Outstanding During the Period	$ 55,000,000	$ 55,000,000
Weighted Average Interest Rate During the Period	6.85%	6.85%
Other Borrowed Funds [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Balance at End of Period	$ 14,486,000	$ 11,645,000
Weighted Average Interest Rate	0.09%	0.08%
Maximum Outstanding at Month End During the Period	$ 16,808,000	$ 27,088,000
Average Amount Outstanding During the Period	$ 15,227,000	$ 20,228,000
Weighted Average Interest Rate During the Period	0.09%	0.09%

Borrowed Funds - Additional Inf

Borrowed Funds - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2005	Dec. 31, 2012
Repurchase Agreement Counterparty [Line Items]
FHLB stock	$ 30,519,000	$ 23,278,000
Purchase of federal funds	$ 128,200,000	$ 103,200,000
Federal funds rate on securities purchased	0.45%	0.29%
Securities, maturity date	Jun. 1, 2035
Aggregate principal amount	$ 55,000,000	$ 55,000,000		$ 55,000,000
Senior Debt, Callable Period	5 years
Collateralized borrowings	$ 14,500,000	$ 11,600,000
Average rates on borrowings	0.09%	0.08%
6.25% Senior Notes Due 2019 [Member]
Repurchase Agreement Counterparty [Line Items]
Interest rate on unsecured debt				6.25%
Senior Notes Due Date	2,019
Senior Debt maturity date	Sep. 1, 2019
WSFS Capital Trust III [Member]
Repurchase Agreement Counterparty [Line Items]
Aggregate principal amount of Pooled Floating Rate Securities			$ 67,000,000
WSFS Capital Trust III [Member] | LIBOR Rate [Member] | Trust Preferred Borrowings [Member]
Repurchase Agreement Counterparty [Line Items]
Variable interest rate			1.77%
WSFS Capital Trust I [Member]
Repurchase Agreement Counterparty [Line Items]
Variable interest rate period	3 months
Federal Home Loan Bank [Member]
Repurchase Agreement Counterparty [Line Items]
Percentage of member asset value	0.10%
Percentage of advances outstanding	4.00%
FHLB stock	$ 30,500,000	$ 23,300,000
Dividends from the FHLB	$ 2,200,000	$ 1,400,000
Minimum [Member]
Repurchase Agreement Counterparty [Line Items]
Weighted average interest rates on advances from the FHLB	0.42%
Federal Home Loan Bank, Advances, general debt obligations, disclosures, general description of terms	Purchase and hold shares of capital stock in the FHLB in an amount at least equal to 0.10% of our member asset value plus 4.00% of advances outstanding.
Maximum [Member]
Repurchase Agreement Counterparty [Line Items]
Weighted average interest rates on advances from the FHLB	1.23%
Federal Reserve Bank of Philadelphia [Member]
Repurchase Agreement Counterparty [Line Items]
Loans pledged as collateral	$ 204,100,000
Borrowed funds	$ 0

Borrowed Funds - Advances from

Borrowed Funds - Advances from FHLB with Rates (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Debt Disclosure [Abstract]
2,016	$ 597,400
2,017	33,315
2,018	38,799
Advances from FHLB, Amount	$ 669,514
2,016	0.47%
2,017	0.96%
2,018	1.10%
Advances from FHLB	0.50%

Borrowed Funds - Securities Sol

Borrowed Funds - Securities Sold under Agreements to Repurchase with Corresponding Carrying and Fair Values of Underlying Securities (Detail) - Maturity over 90 Days [Member] $ in Thousands	Dec. 31, 2014USD ($)
Assets Sold under Agreements to Repurchase [Line Items]
Borrowing Amount	$ 25,000
Rate	2.98%
Collateral Carrying Value	$ 35,886
Collateral Fair Value	35,549
Collateral Accrued Interest	$ 64

Stock and Common Stock Warra102

Stock and Common Stock Warrants - Additional Information (Detail) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	May. 31, 2015	Dec. 31, 2015$ / sharesshares	Dec. 31, 2014USD ($)$ / sharesshares	Dec. 31, 2009USD ($)$ / sharesshares
Equity [Line Items]
Sale of common stock, shares		55,945,245	55,697,124
Repurchase of warrant | $			$ 6,300
Shares authorized to repurchase of common stock		1,060,137	349,263
Common stock average repurchase price | $ / shares		$ 26.88	$ 25.73
Stock split description		Three-for-one stock split
Stock split conversion ratio	3
2009 Equity Offering Plan [Member]
Equity [Line Items]
Warrant to purchase of common stock, shares			387,930
Shares authorized to repurchase of common stock			243,699
Additional Stock Buyback Program [Member]
Equity [Line Items]
Shares authorized to repurchase of common stock		92,096
Common stock average repurchase price | $ / shares		$ 33.74
Remaining shares authorized to repurchase of common stock		1,400,000
Percentage of remaining shares authorized to repurchase of common stock		5.00%
Shares outstanding		29,800,000
Maximum [Member]
Equity [Line Items]
Percentage of common stock shares approved			5.00%
Maximum [Member] | Additional Stock Buyback Program [Member]
Equity [Line Items]
Percentage of common stock shares approved		5.00%
Peninsula Investment Partners, L.P. [Member]
Equity [Line Items]
Sale of common stock, shares				2,586,207
Total purchase price | $				$ 25,000
Repurchase of warrant | $			$ 6,300
Peninsula Investment Partners, L.P. [Member] | Warrant [Member]
Equity [Line Items]
Warrant to purchase of common stock, shares				387,930
Warrant to purchase of common stock, exercise price | $ / shares				$ 9.67
Warrant period to purchase				10 years
Peninsula Investment Partners, L.P. [Member] | Common Stock [Member]
Equity [Line Items]
Total purchase price | $				$ 23,500
Peninsula Investment Partners, L.P. [Member] | Common Stock Warrants [Member]
Equity [Line Items]
Total purchase price | $				1,500
Total proceeds from private placement | $				$ 25,000

Stockholders' Equity and Reg103

Stockholders' Equity and Regulatory Capital - Additional Information (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015USD ($)Class_of_Stock$ / shares	Dec. 31, 2005USD ($)	May. 31, 2015$ / shares	Mar. 31, 2015$ / shares	Dec. 31, 2014$ / shares
Capital Unit [Line Items]
Ratio of common equity Tier 1 capital to risk-weighted assets	4.50%
Ratio of Tier 1 capital to risk-weighted assets	11.82%				12.83%
Ratio of total capital to risk-weighted assets	12.62%				13.86%
Tier 1 leverage ratio	10.44%				10.56%
Common stock outstanding, par value | $ / shares	$ 0.01		$ 0.01	$ 0.01	$ 0.01
Number of classes of stock | Class_of_Stock	1
Number of class of common stock outstanding | Class_of_Stock	1
Coupon rate	2.18%
Variable interest rate period	Three-month LIBOR
Cash remains at the holding company	$ 26.4
Minimum [Member]
Capital Unit [Line Items]
Ratio of common equity Tier 1 capital to risk-weighted assets	4.50%
Ratio of Tier 1 capital to risk-weighted assets	4.00%
Ratio of total capital to risk-weighted assets	8.00%
Tier 1 leverage ratio	4.00%
Maximum [Member]
Capital Unit [Line Items]
Ratio of Tier 1 capital to risk-weighted assets	6.00%
WSFS Capital Trust III [Member]
Capital Unit [Line Items]
Pooled Floating Rate Securities Issued		$ 67
Pooled Floating Rate Securities, par value		$ 2
Date of maturity		Jun. 1, 2035
Trust Preferred Borrowings [Member] | WSFS Capital Trust III [Member] | LIBOR Rate [Member]
Capital Unit [Line Items]
Variable interest rate		1.77%

Stockholders' Equity and Reg104

Stockholders' Equity and Regulatory Capital - Schedule of Capital Position (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Capital Unit [Line Items]
Total Capital (to risk-weighted assets), Consolidated Bank Capital Amount	$ 595,996,000	$ 533,300,000
Tangible Capital (to tangible assets), Consolidated Bank Capital Amount		$ 493,534,000
Tangible Capital (to tangible assets), Consolidated Bank Capital Percent		10.56%
Tangible Capital (to tangible assets), For Capital Adequacy Purposes Amount		$ 70,108,000
Tangible Capital (to tangible assets), For Capital Adequacy Purposes Percentage		1.50%
Tangible Capital (to tangible assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Amount		$ 0
Tangible Capital (to tangible assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Percentage		0.00%
Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Amount	558,278,000	$ 493,534,000
Common Equity Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Amount	494,571,000
Core Capital (to adjusted tangible assets), Consolidated Bank Capital Amount	$ 558,278,000	$ 493,534,000
Total Capital (to risk-weighted assets), Consolidated Bank Capital Percent	12.62%	13.86%
Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Percent	11.82%	12.83%
Common Equity Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Percent	10.47%
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), Consolidated Bank Capital Percent	10.44%	10.56%
Total Capital (to risk-weighted assets), For Capital Adequacy Purposes Amount	$ 377,948,000	$ 307,739,000
Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Amount	283,461,000	153,869,000
Common Equity Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Amount	212,596,000
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), For Capital Adequacy Purposes Amount	$ 213,849,000	$ 186,954,000
Total Capital (to risk-weighted assets), For Capital Adequacy Purposes Percentage	8.00%	8.00%
Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Percentage	6.00%	4.00%
Common Equity Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Percentage	4.50%
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), For Capital Adequacy Purposes Percentage	4.00%	4.00%
WSFS Bank [Member]
Capital Unit [Line Items]
Total Capital (to risk-weighted assets), Consolidated Bank Capital Amount	$ 618,454,000	$ 531,209,000
Tangible Capital (to tangible assets), Consolidated Bank Capital Amount		$ 491,229,000
Tangible Capital (to tangible assets), Consolidated Bank Capital Percent		10.25%
Tangible Capital (to tangible assets), For Capital Adequacy Purposes Amount		$ 71,907,000
Tangible Capital (to tangible assets), For Capital Adequacy Purposes Percentage		1.50%
Tangible Capital (to tangible assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Amount		$ 0
Tangible Capital (to tangible assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Percentage		0.00%
Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Amount	580,735,000	$ 491,229,000
Common Equity Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Amount	580,735,000
Core Capital (to adjusted tangible assets), Consolidated Bank Capital Amount	$ 580,735,000	$ 491,229,000
Total Capital (to risk-weighted assets), Consolidated Bank Capital Percent	13.11%	13.83%
Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Percent	12.31%	12.79%
Common Equity Tier 1 Capital (to risk-weighted assets), Consolidated Bank Capital Percent	12.31%
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), Consolidated Bank Capital Percent	10.88%	10.25%
Total Capital (to risk-weighted assets), For Capital Adequacy Purposes Amount	$ 377,332,000	$ 307,217,000
Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Amount	282,999,000	153,609,000
Common Equity Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Amount	212,249,000
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), For Capital Adequacy Purposes Amount	$ 213,502,000	$ 191,753,000
Total Capital (to risk-weighted assets), For Capital Adequacy Purposes Percentage	8.00%	8.00%
Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Percentage	6.00%	4.00%
Common Equity Tier 1 Capital (to risk-weighted assets), For Capital Adequacy Purposes Percentage	4.50%
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), For Capital Adequacy Purposes Percentage	4.00%	4.00%
Total Capital (to risk-weighted assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Amount	$ 471,666,000	$ 384,022,000
Tier 1 Capital (to risk-weighted assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Amount	377,332,000	230,413,000
Common Equity Tier 1 Capital (to risk-weighted assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Amount	306,583
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Amount	$ 266,877,000	$ 239,692,000
Total Capital (to risk-weighted assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Percentage	10.00%	10.00%
Tier 1 Capital (to risk-weighted assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Percentage	8.00%	6.00%
Common Equity Tier 1 Capital (to risk-weighted assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Percentage	6.50%
Tier 1 Leverage Capital/Core Capital (to adjusted tangible assets), To Be Well-Capitalized Under Prompt Corrective Action Provisions Percentage	5.00%	5.00%

Associate (Employee) Benefit105

Associate (Employee) Benefit Plans - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015USD ($)Plansshares	Dec. 31, 2014USD ($)shares	Dec. 31, 2013USD ($)shares
Defined Benefit Plan Disclosure [Line Items]
Cash contributions to the plan on behalf of associates, cash expenditure	$ 2,600,000	$ 2,200,000	$ 2,600,000
Percentage of contributions to be invested in balanced fund if no designation made	100.00%
Employee benefit plan, sales of common stock | shares	25,000	2,000
Employee benefit plan, purchases of common stock | shares			19,000
Postretirement benefit plans eligibility term	Only those Associates who have achieved ten years of service
Amortization of unrecognized gains losses exceed percentage	10.00%
Amortization of net actuarial gain	$ 64,000
Amortization of net transition obligation	$ 76,000
Percentage of annual medical premium cap	4.00%
Amount of annual health premium per retiree	$ 3,158
Estimated contribution for health fund	$ 3,285
Number of additional supplemental plans | Plans	5
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Average annual rate of increase for medical benefits	10.00%
Supplemental Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan, corresponding liability	$ 810,000	$ 856,000
Early Retirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan, corresponding liability	193,000	179,000
Director's Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan, corresponding liability	43,000	60,000
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan, corresponding liability	1,400,000	1,500,000
Post-Retirement Medical Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan, corresponding liability	$ 130,000	$ 147,000

Associate (Employee) Benefit106

Associate (Employee) Benefit Plans - Schedule of Net Periodic Benefit Cost Components of Postretirement Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Change in benefit obligation:
Benefit obligation at beginning of year	$ 2,266	$ 4,560	$ 4,478
Service cost	59	195	343
Interest cost	89	195	176
Actuarial (gain)	(502)	(1,611)	(288)
Benefits paid	(107)	(125)	(149)
Plan change		(948)
Benefit obligation at end of year	1,805	2,266	4,560
Change in plan assets:
Fair value of plan assets at beginning of year	0	0	0
Employer contributions	107	125	149
Benefits paid	(107)	(125)	(149)
Fair value of plan assets at end of year	0	0	0
Funded status:
Unfunded status	(1,805)	(2,266)	(4,560)
Total (income) loss recognized in other comprehensive income	(1,271)	(1,367)	1,221
Net amount recognized	(3,076)	(3,633)	(3,339)
Components of net periodic benefit cost:
Service cost	59	195	343
Interest cost	89	195	177
Amortization of transition obligation	(76)	(57)
Net (gain) loss recognition	(20)	86	78
Net periodic benefit cost	$ 52	$ 419	$ 598
Assumptions used to determine net periodic benefit cost:
Discount rate	4.00%	5.00%	4.00%
Health care cost trend rate	5.00%	5.00%	5.00%
Sensitivity analysis of health care cost trends:
Effect of +1% on service cost plus interest cost	$ 0	$ 0	$ 0
Effect of -1% on service cost plus interest cost	0	0	0
Effect of +1% on APBO	0	0	0
Effect of -1% on APBO	$ 0	$ 0	$ 0
Assumptions used to value the Accumulated Postretirement Benefit Obligation (APBO):
Discount rate	4.25%	4.00%	5.00%
Health care cost trend rate	5.00%	5.00%	5.00%
Ultimate trend rate	5.00%	5.00%	5.00%
Year of ultimate trend rate	2,016	2,015	2,014

Associate (Employee) Benefit107

Associate (Employee) Benefit Plans - Estimated Future Benefit Payments (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Postemployment Benefits [Abstract]
During 2,016	$ 62
During 2,017	64
During 2,018	65
During 2,019	67
During 2,020	68
During 2021 through 2025	404
Total	$ 730

Taxes on Income - Schedule of C

Taxes on Income - Schedule of Components of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Current income taxes, Federal taxes	$ 24,237	$ 21,252	$ 22,416
Current income taxes, State and local taxes	3,805	3,215	2,759
Deferred income taxes, Federal taxes	2,283	(5,575)	875
Deferred income taxes, State and local taxes	(52)	(89)	(120)
Total	$ 30,273	$ 18,803	$ 25,930

Taxes on Income - Schedule of D

Taxes on Income - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Unrealized losses on available-for-sale securities	$ 57
Allowance for loan losses	12,981	$ 13,799
Purchase accounting adjustments-loans	4,597	3,016
Reserves and other accruals	14,147	10,091
Deferred gains	888	761
Net operating losses	785	1,104
Tax credits	1,664	309
Reverse mortgages	3,290	3,707
Total deferred tax assets before valuation allowance	38,409	32,787
Less: valuation allowance	0	0
Total Deferred tax assets	38,409	32,787
Deferred tax liabilities:
Unrealized gains on available-for-sale securities		(1,626)
Bad debt recapture	(954)	(1,233)
Accelerated depreciation	(1,806)	(1,915)
Other	(344)	(267)
Prepaid expenses	(371)	(741)
Deferred loan costs	(1,209)	(1,904)
Intangibles	(4,876)	(3,349)
Total deferred tax liabilities	(9,560)	(11,035)
Net deferred tax asset	$ 28,849	$ 21,752

Taxes on Income - Additional In

Taxes on Income - Additional Information (Detail) - USD ($)	Jan. 27, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Oct. 09, 2015	Sep. 05, 2014
Income Tax Examination [Line Items]
Unrealized losses on investments in debt and equity		$ 57,000
Unrealized gains on investments in debt and equity			$ 1,626,000
Postretirement benefit obligations		223,000	258,000
Deferred income tax (benefit) expense		0	0
Deferred tax asset		28,849,000	21,752,000
Deferred income taxes		2,231,000	(5,664,000)	$ 755,000
Deferred tax asset valuation allowance		0	0
Deferred tax assets, net operating loss carryovers		785,000	1,104,000
Deferred tax asset		38,409,000	32,787,000
Income tax benefit		$ 30,273,000	18,803,000	25,930,000
Income tax examination		Federal tax years 2012 through 2015 remain subject to examination
Income tax examination in process		No federal income tax return examinations are currently in process
Completion of federal tax return audit by IRS		During 2013, the audit of our 2010 federal tax return was completed by the IRS.
Amortization of low-income housing credit investments reflected as income tax expense		$ 1,900,000	1,200,000	1,200,000
Tax benefits recorded as income tax expense		293,000
Carrying value of investment in affordable housing credits		$ 12,000,000	13,000,000
SASCO [Member]
Income Tax Examination [Line Items]
Deferred tax asset valuation allowance	$ 4,900,000
Net operating loss expiration beginning period		2,030
Deferred tax asset				4,900,000
Deferred tax liabilities				$ 1,800,000
Income tax benefit	6,700,000
Federal net operating losses	1,100,000
SASCO [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Federal net operating losses		$ 110,000
SASCO [Member] | Eliminated [Member]
Income Tax Examination [Line Items]
Deferred tax liabilities	$ 1,800,000
Domestic Tax Authority [Member]
Income Tax Examination [Line Items]
Alternative minimum tax credit carryovers		1,700,000
Income tax benefit		186,000
Net operating loss carryforwards		$ 1,700,000
Net operating loss carryforwards, expiration date		2,033
Domestic Tax Authority [Member] | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Income tax examination period		2,012
Domestic Tax Authority [Member] | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Income tax examination period		2,015
State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Net operating loss carryforwards		$ 2,600,000
Net operating loss carryforwards, expiration date		2,017
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Income tax examination period		2,012
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Income tax examination period		2,015
Minimum [Member]
Income Tax Examination [Line Items]
Percentage of tax benefit		50.00%
Alliance Bancorp, Inc. [Member]
Income Tax Examination [Line Items]
Business combination, deferred tax asset					$ 7,544,000
Deferred tax assets, federal net operating loss carryovers					1,100,000
Deferred tax assets, state net operating loss carryovers					2,600,000
Deferred tax assets, alternative minimum tax credit carryovers					1,700,000
Deferred income taxes		$ 0
Deferred tax asset valuation allowance					0
Net operating loss expiration beginning period		2,035
Retained earnings prior Alliance bad debt deductions					$ 7,100,000
First Wyoming Financial Corporation [Member]
Income Tax Examination [Line Items]
Business combination, deferred tax asset			3,100,000			$ 3,216,000
Deferred tax asset valuation allowance			0
Net operating loss expiration beginning period		2,034
Deferred tax assets, net operating loss carryovers			1,900,000
First Wyoming Financial Corporation [Member] | Minimum [Member]
Income Tax Examination [Line Items]
Alternative minimum tax credit carryovers			$ 309,000
Tax Credit [Member]
Income Tax Examination [Line Items]
Affordable housing tax credits		$ 2,000,000

Taxes on Income - Schedule of E

Taxes on Income - Schedule of Effective Income Tax Rate Reconciliation (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	35.00%	35.00%	35.00%
State tax, net of federal tax benefit	2.90%	2.80%	2.40%
Nondeductible acquisition costs	0.70%	0.20%
Tax-exempt interest	(1.90%)	(2.00%)	(1.20%)
Bank-owned life insurance income	(0.30%)	(0.30%)	(0.10%)
Incentive stock option and other nondeductible compensation			0.30%
Tax benefits from previously unconsolidated subsidiary (SASCO)		(9.40%)
Federal tax credits, net of amortization	(0.50%)	(0.50%)	(0.70%)
Other	0.20%	0.10%	(0.10%)
Effective tax rate	36.10%	25.90%	35.60%

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($)	Apr. 25, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance under 2013 Plan		1,647,878	1,984,035
Stock-based compensation expense recognized		$ 3,200,000	$ 3,700,000	$ 3,200,000
Stock-based compensation expense after tax		$ 2,200,000	$ 2,600,000	$ 2,500,000
Stock options granted, vest in percentage per annum increments		25.00%
Stock option exercisable period description		Start to become exercisable one year from the grant date and expire between five and seven years from the grant date
Non-statutory stock options, granted	750,000
Non-statutory stock options, vesting percentage after second year	40.00%
Non-statutory stock options, vesting percentage in each of following three years	20.00%
Non-statutory stock options, exercise price over December 2012 market value, percent	20.00%
Non eligibility period of receiving grants under any of other stock based award programs	5 years
Weighted-average risk-free rate of return		1.54%	0.97%	0.50%
Expected option life		4 years 10 months 24 days	4 years 10 months 24 days	4 years 10 months 24 days
Expected stock price volatility rate		25.00%	29.00%	30.70%
Assumed dividend yield		0.76%	0.67%	1.01%
Weighted-average fair value of awards granted		$ 5.73	$ 5.78	$ 4.65
Aggregate intrinsic value of options exercised		$ 3,000,000	$ 2,400,000	$ 2,700,000
Total unrecognized compensation cost of nonvested stock options		$ 3,200,000
Expected weighted-average period		2 years 2 months 12 days
Shares vesting period		2 years
Compensation expense		$ 256,000
Stock-based compensation expense		$ 2,957,000	$ 3,738,000	$ 2,938,000
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance award vesting period		5 years
Return on investment of cost of restricted stock		50.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance award vesting period		7 years
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting period		5 years
Restricted stock granted		66,750
Share-Based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted, vest in percentage per annum increments			25.00%
Share-Based Compensation Award, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted, vest in percentage per annum increments				25.00%
Stock Incentive 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance under 2013 Plan		2,096,535
Shares available for future grants under 2013 Plan		946,146
Stock Incentive 2013 Plan [Member] | Executive Officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive stock options issued		450,000
Non-Plan Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average risk-free rate of return		0.76%
Expected option life		5 years
Expected stock price volatility rate		40.50%
Assumed dividend yield		1.01%
Restricted Stock and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting period		4 years
Restricted stock granted		37,986
Weighted average fair value, granted		$ 26.13	$ 23.72	$ 15.83
Total compensation cost to be recognized		$ 1,900,000
Weighted average remaining contractual term		2 years 6 months
Total fair value, vested		$ 1,300,000	$ 1,200,000	$ 1,200,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance award vesting period		4 years
Aggregate shares of restricted stock awarded		233,400
Percentage of annual return on assets				1.00%
Restricted stock units and awards issued			108,456
Vesting description		The RSUs vest in 25% increments over four years
Stock-based compensation expense		$ 380,000

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Assumptions for Options Issued (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected term (in years)	4 years 10 months 24 days	4 years 10 months 24 days	4 years 10 months 24 days
Volatility	25.00%	29.00%	30.70%
Weighted-average risk-free interest rate	1.54%	0.97%	0.50%
Dividend yield	0.76%	0.67%	1.01%

Stock-Based Compensation - S114

Stock-Based Compensation - Summary of Options Including Non-Plan Stock Options (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Stock Options:
Outstanding at beginning of year, Shares	1,984,035
Granted, Shares	73,728
Exercised, Shares	(262,512)
Forfeited, Shares	(147,373)
Outstanding at end of year, Shares	1,647,878	1,984,035
Nonvested at end of year, Shares	1,028,142	1,729,143
Exercisable at end of year, Shares	619,736
Outstanding at beginning of year, Weighted-Average Exercise Price	$ 16.38
Granted, Weighted-Average Exercise Price	26.24
Exercised, Weighted-Average Exercise Price	15.42
Forfeited, Weighted-Average Exercise Price	17.23
Outstanding at end of year, Weighted-Average Exercise Price	17.08	$ 16.38
Nonvested at end of period, Weighted-Average Exercise Price	17.58	$ 16.67
Exercisable at end of year, Weighted-Average Exercise Price	$ 16.26
Outstanding, Weighted-Average Remaining Contractual Term (Year)	3 years 8 months 27 days	4 years 3 months 18 days
Nonvested, Weighted-Average Remaining Contractual Term (Year)	3 years 11 months 27 days
Exercisable, Weighted-Average Remaining Contractual Term (Year)	3 years 3 months 29 days
Outstanding, Aggregate Intrinsic Value Intrinsic Value	$ 18,444
Outstanding, Aggregate Intrinsic Value	25,175	$ 18,444
Nonvested, Aggregate Intrinsic Value	15,200
Exercisable, Aggregate Intrinsic Value	$ 9,975

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Nonvested Stock Option Outstanding (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock Options:
Nonvested at beginning of period, Shares	1,729,143
Granted, Shares	73,728
Vested, Shares	(674,948)
Forfeited, Shares	(99,781)
Nonvested at end of period, Shares	1,028,142	1,729,143
Nonvested at beginning of period, Weighted-Average Exercise Price	$ 16.67
Granted, Weighted-Average Exercise Price	26.24
Vested, Weighted-Average Exercise Price	16.44
Forfeited, Weighted-Average Exercise Price	17.23
Nonvested at end of period, Weighted-Average Exercise Price	17.58	$ 16.67
Nonvested at beginning of period, Weighted-Average Grant Date Fair Value	4.76
Granted, Weighted-Average Grant Date Fair Value	5.73	5.78	$ 4.65
Vested, Weighted-Average Grant Date Fair Value	4.75
Forfeited, Weighted-Average Grant Date Fair Value	4.81
Nonvested at end of period, Weighted-Average Grant Date Fair Value	$ 4.85	$ 4.76

Stock-Based Compensation - S116

Stock-Based Compensation - Schedule of RSUs and RSAs (Detail) - Restricted Stock and Restricted Stock Units [Member] - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at December 31, 2014	252,615
Granted	37,986
Vested	(106,434)
Forfeited	(12,333)
Balance at December 31, 2015	171,834	252,615
Balance at December 31, 2014, Weighted Average Grant-Date Fair Value per Unit	$ 10.11
Granted, Weighted Average Grant-Date Fair Value per Unit	26.13	$ 23.72	$ 15.83
Vested, Weighted Average Grant-Date Fair Value per Unit	12.17
Forfeited, Weighted Average Grant-Date Fair Value per Unit	6.92
Balance at December 31, 2015, Weighted Average Grant-Date Fair Value per Unit	$ 12.60	$ 10.11

Commitments and Contingencies -

Commitments and Contingencies - Summary of Projected Amounts of Future Minimum Payments (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,016	$ 4,962
2,017	4,107
2,018	3,367
2,019	3,396
2,020	$ 3,462

Commitments and Contingencie118

Commitments and Contingencies - Additional Information (Detail)	3 Months Ended								12 Months Ended
	Dec. 31, 2015USD ($)TransactionsFinancial_Institution	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)Transactions	Sep. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Dec. 31, 2015USD ($)TransactionsFinancial_Institution	Dec. 31, 2014USD ($)Transactions	Dec. 31, 2013USD ($)
Other Commitments [Line Items]
Expenses for data processing and operations									$ 5,949,000	$ 6,105,000	$ 5,924,000
Commitments to sell residential mortgages	$ 90,300,000				$ 34,600,000				90,300,000	34,600,000
Provision for losses at the time of sale	$ 1,778,000	$ 1,453,000	$ 3,773,000	$ 786,000	$ 567,000	$ 333,000	$ 50,000	$ 2,630,000	$ 7,790,000	$ 3,580,000	$ 7,172,000
Number of unrelated financial institutions | Financial_Institution	5								5
Derivative transaction held for guarantee | Transactions	119				101				119	101
Number of customers in paying position to third party | Transactions									119	99
Aggregate notional amount	$ 481,600,000				$ 417,900,000				$ 481,600,000	$ 417,900,000
Notional amount maturity period, minimum									1 year	3 months
Notional amount maturity period, maximum									10 years	11 years
Aggregate fair value of swaps to customers	18,100,000				16,500,000				$ 18,100,000	$ 16,500,000
Reserves for swap guarantees	$ 0				0				0	0
Amount of swap liability in paying positions to third party					$ 16,500,000					16,500,000
Secondary Market Loan Sales [Member]
Other Commitments [Line Items]
Provision for losses at the time of sale									0
Repurchase of the loans									$ 385,000	$ 354,000
Number of loans repurchased | Transactions									1	2
Real Estate [Member]
Other Commitments [Line Items]
Commitments of lending operations									$ 173,800,000
Commitments to Extend Credit [Member]
Other Commitments [Line Items]
Commitments of lending operations									959,600,000	$ 0
Consumer Loan Commitments [Member]
Other Commitments [Line Items]
Commitments of lending operations									$ 189,400,000
Minimum [Member]
Other Commitments [Line Items]
Closing period of residential mortgage commitments									1 month
Maximum [Member]
Other Commitments [Line Items]
Closing period of residential mortgage commitments									6 months

Commitments and Contingencie119

Commitments and Contingencies - Summary of Off-Balance Sheet Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Commercial Mortgage Loan Commitments [Member]
Financial instruments with contract amounts which represent potential credit risk:
Loan commitments	$ 22,393	$ 16,110
Commercial Loan Commitments [Member]
Financial instruments with contract amounts which represent potential credit risk:
Loan commitments	506,615	393,028
Commercial Owner-Occupied Commitments [Member]
Financial instruments with contract amounts which represent potential credit risk:
Loan commitments	40,052	33,302
Commercial Standby Letters Of Credit [Member]
Financial instruments with contract amounts which represent potential credit risk:
Loan commitments	49,832	47,667
Residential Mortgage loan commitments [Member]
Financial instruments with contract amounts which represent potential credit risk:
Loan commitments	2,218	22,617
Consumer Loan Commitments [Member]
Financial instruments with contract amounts which represent potential credit risk:
Loan commitments	189,392	168,391
Construction Loan Commitments [Member]
Financial instruments with contract amounts which represent potential credit risk:
Loan commitments	$ 149,119	$ 99,917

Fair Value Disclosures - Schedu

Fair Value Disclosures - Schedule of Financial Instruments Carried at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	$ 721,029	$ 740,124
Total assets measured at fair value on a recurring basis	721,029	740,124
Assets measured at fair value on a nonrecurring basis	5,080	5,734
Loans held-for-sale	41,807	28,508
Impaired loans	35,086	41,334
Total assets measured at fair value on a nonrecurring basis	81,973	75,576
GSE [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	30,914	29,960
Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets measured at fair value on a nonrecurring basis	5,080	5,734
FNMA MBS [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	318,471	292,553
FNMA MBS [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	318,471	292,553
FHLMC MBS [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	99,442	146,882
FHLMC MBS [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	99,442	146,882
GNMA MBS [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	20,714	77,797
GNMA MBS [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	20,714	77,797
CMO [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	251,488	192,932
CMO [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	251,488	192,932
Significant Other Observable Inputs (Level 2) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total assets measured at fair value on a recurring basis	721,029	740,124
Loans held-for-sale	41,807	28,508
Total assets measured at fair value on a nonrecurring basis	41,807	28,508
Significant Other Observable Inputs (Level 2) [Member] | GSE [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	30,914	29,960
Significant Other Observable Inputs (Level 2) [Member] | FNMA MBS [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	318,471	292,553
Significant Other Observable Inputs (Level 2) [Member] | FHLMC MBS [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	99,442	146,882
Significant Other Observable Inputs (Level 2) [Member] | GNMA MBS [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	20,714	77,797
Significant Other Observable Inputs (Level 2) [Member] | CMO [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	251,488	192,932
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans	35,086	41,334
Total assets measured at fair value on a nonrecurring basis	40,166	47,068
Significant Unobservable Inputs (Level 3) [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 5,080	$ 5,734

Fair Value Disclosures - Additi

Fair Value Disclosures - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of asset transfers between Level 1 and Level 2	$ 0
Fair value of asset transfers between Level 2 and Level 1	0
Material liabilities measured at fair value	0	$ 0
Fair Value	$ 721,029,000	740,124,000
Minimum discount rate on appraisals of collateral securing loan	10.00%
Maximum discount rate on appraisals of collateral securing loan	50.00%
Collateral for collateral dependent loans	$ 35,086,000	41,334,000
Valuation allowance on impaired loans	2,600,000	5,300,000
Commitments to Extend Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments of lending operations	959,600,000	0
U.S. Treasury Notes [Member] | AAA-Rated [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	30,900,000
Federal Agency MBS [Member] | AAA-Rated [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	690,100,000
Impaired Loans (Collateral Dependent) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Collateral for collateral dependent loans	37,700,000	$ 46,700,000
Visa [Member] | Common Class B [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated value of shares	$ 13,300,000

Fair Value Disclosures - Book V

Fair Value Disclosures - Book Value and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financial assets:
Fair Value	$ 721,029	$ 740,124
Investment securities held-to-maturity	165,862	126,168
Loans, held-for-sale	41,807	28,508
Loans, net	3,729,050	3,156,652
Impaired loans, net	35,086	41,334
Reverse Mortgages	24,284	29,298
Stock in Federal Home Loan Bank of Pittsburgh	30,519	23,278
Accrued interest receivable	14,040	11,782
Other assets	68,040	54,561
Financial liabilities:
Deposits	4,016,566	3,649,235
Accrued interest payable	801	1,004
Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Loans, held-for-sale	41,807	28,508
Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Impaired loans, net	35,086	41,334
Book Value [Member]
Financial assets:
Fair Value	721,029	740,124
Loans, held-for-sale	41,807	28,508
Impaired loans, net	35,086	41,334
Book Value [Member] | Quoted Prices in Active Markets for Identical Asset (Level 1) [Member]
Financial assets:
Cash and cash equivalents	561,179	508,039
Book Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Investment securities held-to-maturity	165,862	126,168
Loans, net	3,693,964	3,115,318
Stock in Federal Home Loan Bank of Pittsburgh	30,519	23,278
Accrued interest receivable	14,040	11,782
Financial liabilities:
Deposits	4,016,566	3,649,235
Borrowed funds	934,211	667,775
Accrued interest payable	801	1,004
Book Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Reverse Mortgages	24,284	29,298
Other assets	8,669	5,739
Financial liabilities:
Standby letters of credit	195	151
Fair Value [Member]
Financial assets:
Fair Value	721,029	740,124
Loans, held-for-sale	41,807	28,508
Impaired loans, net	35,086	41,334
Fair Value [Member] | Quoted Prices in Active Markets for Identical Asset (Level 1) [Member]
Financial assets:
Cash and cash equivalents	561,179	508,039
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Investment securities held-to-maturity	167,743	126,171
Loans, net	3,637,714	3,080,521
Stock in Federal Home Loan Bank of Pittsburgh	30,519	23,278
Accrued interest receivable	14,040	11,782
Financial liabilities:
Deposits	3,791,606	3,461,218
Borrowed funds	935,230	672,850
Accrued interest payable	801	1,004
Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Reverse Mortgages	24,284	29,298
Other assets	18,416	10,577
Financial liabilities:
Standby letters of credit	$ 195	$ 151

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Loans [Member]
Related Party Transaction [Line Items]
Outstanding balances to related parties	$ 1,900,000	$ 2,900,000
Related party loan repayment	886,000
Deposits [Member]
Related Party Transaction [Line Items]
Outstanding balances to related parties	2,000,000	$ 4,200,000
New Loans and Credit Line Advance to Related Parties [Member]
Related Party Transaction [Line Items]
New loans and credit line advance to related parties	$ 218,000

Segment Information - Additiona

Segment Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015SegmentBusiness_Lines
Segment Reporting Information [Line Items]
Number of businesses	3
WSFS Bank [Member]
Segment Reporting Information [Line Items]
Number of businesses	3
Cash Connect [Member]
Segment Reporting Information [Line Items]
Number of businesses	3
Trust & Wealth Management [Member]
Segment Reporting Information [Line Items]
Number of businesses	3
Number of business lines | Business_Lines	4

Segment Information - Details o

Segment Information - Details of Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Interest income	$ 51,813	$ 44,857	$ 43,055	$ 42,851	$ 42,340	$ 40,799	$ 39,413	$ 37,785	$ 182,576	$ 160,337	$ 146,922
Noninterest income	23,037	21,665	22,458	21,095	19,987	20,304	19,623	18,364	88,255	78,278	80,151
Total revenue									270,831	238,615	227,073
Interest expense	3,917	3,860	3,965	4,034	4,101	4,052	3,936	3,741	15,776	15,830	15,334
Noninterest expenses	47,187	38,705	38,654	38,913	38,374	39,163	35,224	33,884	163,459	146,645	131,755
Provision for loan losses	1,778	1,453	3,773	786	567	333	50	2,630	7,790	3,580	7,172
Total expenses									187,025	166,055	154,261
Income before taxes	21,968	22,504	19,121	20,213	19,285	17,555	19,826	15,894	83,806	72,560	72,812
Provision for income taxes	7,984	8,078	6,887	7,324	6,577	6,142	7,101	(1,017)	30,273	18,803	25,930
Net Income	13,984	$ 14,426	$ 12,234	$ 12,889	12,708	$ 11,413	$ 12,725	$ 16,911	53,533	53,757	46,882
Cash and cash equivalents	561,179				508,039				561,179	508,039	484,426	$ 500,887
Goodwill	85,212				48,651				85,212	48,651	32,235
Other segment assets	4,939,571				4,296,630				4,939,571	4,296,630	3,999,102
Total assets	5,585,962				4,853,320				5,585,962	4,853,320	4,515,763
Capital expenditures									9,768	4,732	2,860
Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income									10,185	8,963	9,352
Noninterest income									8,957	7,732	7,300
Total revenue									19,142	16,695	16,652
Interest expense									10,185	8,963	9,352
Noninterest expenses									8,957	7,732	7,300
Total expenses									19,142	16,695	16,652
External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue									289,973	255,310	243,725
Total expenses									206,167	182,750	170,913
WSFS Bank [Member]
Segment Reporting Information [Line Items]
Interest income									174,636	152,545	139,082
Noninterest income									37,042	34,461	40,479
Total revenue									211,678	187,006	179,561
Interest expense									15,155	15,409	14,744
Noninterest expenses									129,138	118,853	106,021
Provision for loan losses									7,476	2,938	6,759
Total expenses									151,769	137,200	127,524
Income before taxes									63,757	53,549	55,283
Cash and cash equivalents	65,663				73,395				65,663	73,395	73,017
Goodwill	80,078				43,517				80,078	43,517	27,101
Other segment assets	4,746,995				4,107,212				4,746,995	4,107,212	3,811,424
Total assets	4,892,736				4,224,124				4,892,736	4,224,124	3,911,542
Capital expenditures									8,017	3,192	2,232
WSFS Bank [Member] | Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income									3,507	3,405	3,603
Noninterest income									7,988	6,814	6,346
Total revenue									11,495	10,219	9,949
Interest expense									6,678	5,558	5,749
Noninterest expenses									969	918	954
Total expenses									7,647	6,476	6,703
WSFS Bank [Member] | External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue									223,173	197,225	189,510
Total expenses									159,416	143,676	134,227
Cash Connect [Member]
Segment Reporting Information [Line Items]
Noninterest income									28,420	25,698	23,746
Total revenue									28,420	25,698	23,746
Noninterest expenses									17,270	15,449	12,950
Total expenses									17,270	15,449	12,950
Income before taxes									7,864	7,378	7,863
Cash and cash equivalents	493,165				431,527				493,165	431,527	408,096
Other segment assets					2,006					2,006	1,965
Total assets	493,165				433,533				493,165	433,533	410,061
Capital expenditures									1,729	1,531	628
Cash Connect [Member] | Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Noninterest income									873	804	845
Total revenue									873	804	845
Interest expense									1,547	1,384	1,541
Noninterest expenses									2,612	2,291	2,237
Total expenses									4,159	3,675	3,778
Cash Connect [Member] | External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue									29,293	26,502	24,591
Total expenses									21,429	19,124	16,728
Wealth Management [Member]
Segment Reporting Information [Line Items]
Interest income									7,940	7,792	7,840
Noninterest income									22,793	18,119	15,926
Total revenue									30,733	25,911	23,766
Interest expense									621	421	590
Noninterest expenses									17,051	12,343	12,784
Provision for loan losses									314	642	413
Total expenses									17,986	13,406	13,787
Income before taxes									12,185	11,633	9,666
Cash and cash equivalents	2,351				3,117				2,351	3,117	3,313
Goodwill	5,134				5,134				5,134	5,134	5,134
Other segment assets	192,576				187,412				192,576	187,412	185,713
Total assets	$ 200,061				$ 195,663				200,061	195,663	194,160
Capital expenditures									22	9
Wealth Management [Member] | Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income									6,678	5,558	5,749
Noninterest income									96	114	109
Total revenue									6,774	5,672	5,858
Interest expense									1,960	2,021	2,062
Noninterest expenses									5,376	4,523	4,109
Total expenses									7,336	6,544	6,171
Wealth Management [Member] | External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue									37,507	31,583	29,624
Total expenses									$ 25,322	$ 19,950	$ 19,958

Parent Company Financial Inf126

Parent Company Financial Information - Condensed Statements of Financial Condition (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets:
Cash	$ 561,179	$ 508,039	$ 484,426	$ 500,887
Other assets	68,040	54,561
Total assets	5,585,962	4,853,320	4,515,763
Liabilities:
Trust preferred	67,011	67,011
Senior debt	55,000	55,000		55,000
Interest payable	801	1,004
Other liabilities	53,913	46,255
Total liabilities	5,005,491	4,364,269
Stockholders' equity:
Common stock	560	557
Capital in excess of par value	256,435	201,130
Accumulated other comprehensive income	696	3,500	(21,294)	12,943
Retained earnings	570,630	523,099
Treasury stock	(247,850)	(239,235)
Total stockholders' equity	580,471	489,051
Total liabilities and stockholders' equity	5,585,962	4,853,320
WSFS Financial Corporation [Member]
Assets:
Cash	26,456	54,331	$ 19,311	$ 62,244
Investment in subsidiaries	667,587	551,784
Investment in Capital Trust III	2,011	2,011
Other assets	7,197	3,436
Total assets	703,251	611,562
Liabilities:
Trust preferred	67,011	67,011
Senior debt	55,000	55,000
Interest payable	413	402
Other liabilities	356	98
Total liabilities	122,780	122,511
Stockholders' equity:
Common stock	560	557
Capital in excess of par value	256,435	201,130
Accumulated other comprehensive income	696	3,500
Retained earnings	570,630	523,099
Treasury stock	(247,850)	(239,235)
Total stockholders' equity	580,471	489,051
Total liabilities and stockholders' equity	$ 703,251	$ 611,562

Parent Company Financial Inf127

Parent Company Financial Information - Condensed Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income:
Reverse mortgage consolidation gain											$ 3,801
Total revenue									$ 270,831	$ 238,615	227,073
Expenses:
Interest expense	$ 3,917	$ 3,860	$ 3,965	$ 4,034	$ 4,101	$ 4,052	$ 3,936	$ 3,741	15,776	15,830	15,334
Other operating expenses									27,062	23,830	19,968
Net interest income	(47,896)	(40,997)	(39,090)	(38,817)	(38,239)	(36,747)	(35,477)	(34,044)	(166,800)	(144,507)	(131,588)
Income before taxes	$ 21,968	$ 22,504	$ 19,121	$ 20,213	$ 19,285	$ 17,555	$ 19,826	$ 15,894	83,806	72,560	72,812
Income tax benefit									(30,273)	(18,803)	(25,930)
Dividends on preferred stock and accretion of discount											(1,633)
Net income allocable to common stockholders									53,533	53,757	45,249
WSFS Financial Corporation [Member]
Income:
Interest income									1,780	785	2,455
Noninterest income									30,180	74,125	9,983
Reverse mortgage consolidation gain											3,801
Total revenue									31,960	74,910	16,239
Expenses:
Interest expense									5,124	5,087	5,113
Other operating expenses									233	140	197
Net interest income									5,357	5,227	5,310
Income before equity in undistributed income of subsidiaries									26,603	69,683	10,929
Equity in undistributed income of subsidiaries									25,765	(17,437)	35,019
Income before taxes									52,368	52,246	45,948
Income tax benefit									1,165	1,511	934
Dividends on preferred stock and accretion of discount											(1,633)
Net income allocable to common stockholders									$ 53,533	$ 53,757	$ 45,249

Parent Company Financial Inf128

Parent Company Financial Information - Condensed Statements of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities:
Net Income	$ 13,984	$ 14,426	$ 12,234	$ 12,889	$ 12,708	$ 11,413	$ 12,725	$ 16,911	$ 53,533	$ 53,757	$ 46,882
Adjustments to reconcile net income to net cash used for operating activities:
Reverse mortgage consolidation gain											(3,801)
Decrease in other assets									(1,643)	(1,455)	5,470
Increase in other liabilities									6,502	2,054	(12,465)
Net cash provided by operating activities									73,287	67,056	57,381
Investing activities:
Investment in non-marketable securities									(3,589)
Net cash used for investing activities									(275,841)	(26,564)	(172,460)
Financing Activities:
Issuance of common stock									3,160	3,613	4,353
Redemption of preferred stock											(52,625)
Repurchase of common stock warrants										(6,300)
Payments to repurchase common stock									(31,659)	(2,686)
Cash dividends paid									(6,002)	(4,644)	(5,998)
Net cash provided (used for) by financing activities									255,694	(16,879)	98,618
(Decrease) increase in cash									53,140	23,613	(16,461)
Cash and cash equivalents at beginning of year				508,039				484,426	508,039	484,426	500,887
Cash and cash equivalents at end of year	561,179				508,039				561,179	508,039	484,426
WSFS Financial Corporation [Member]
Operating activities:
Net Income									53,533	53,757	46,882
Adjustments to reconcile net income to net cash used for operating activities:
Equity in undistributed income of subsidiaries									(25,765)	17,437	(35,019)
Reverse mortgage consolidation gain											(3,801)
Increase in capitalized interest											(801)
Decrease in other assets									3,925	4,217	3,831
Increase in other liabilities									405	203	245
Net cash provided by operating activities									32,098	75,614	11,337
Investing activities:
Payments for investment in and advances to subsidiaries										(2,225)
Sale or repayment of investments in and advances to subsidiaries									1,213	3,676
Net cash from business combinations									(23,096)	(32,028)
Investment in non-marketable securities									(3,589)
Net cash used for investing activities									(25,472)	(30,577)
Financing Activities:
Issuance of common stock									3,160	3,613	4,353
Redemption of preferred stock											(52,625)
Repurchase of common stock warrants										(6,300)
Payments to repurchase common stock									(31,659)	(2,686)
Cash dividends paid									(6,002)	(4,644)	(5,998)
Net cash provided (used for) by financing activities									(34,501)	(10,017)	(54,270)
(Decrease) increase in cash									(27,875)	35,020	(42,933)
Cash and cash equivalents at beginning of year				$ 54,331				$ 19,311	54,331	19,311	62,244
Cash and cash equivalents at end of year	$ 26,456				$ 54,331				$ 26,456	$ 54,331	$ 19,311

Change in Accumulated Other 129

Change in Accumulated Other Comprehensive Income - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 3,500	$ (21,294)	$ 12,943
Other comprehensive income (loss) before reclassifications	(1,417)	24,118	(32,057)
Less: Amounts reclassified from accumulated other comprehensive income (loss)	(916)	(643)	(2,180)
Total other comprehensive (loss) income	(2,804)	24,794	(34,237)
Ending Balance	696	3,500	(21,294)
Net Change in Investment Securities Available-For-Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	2,653	(20,822)	13,415
Other comprehensive income (loss) before reclassifications	(1,417)	24,118	(32,057)
Less: Amounts reclassified from accumulated other comprehensive income (loss)	(916)	(643)	(2,180)
Total other comprehensive (loss) income	(2,333)	23,475	(34,237)
Ending Balance	320	2,653	(20,822)
Net Change in Securities Held-to-maturity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Less: Amounts reclassified from accumulated other comprehensive income (loss)	(412)
Total other comprehensive (loss) income	(412)
Ending Balance	(412)
Net Change in Defined Benefit Plan [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	847	(472)	(472)
Less: Amounts reclassified from accumulated other comprehensive income (loss)	(59)	1,319
Total other comprehensive (loss) income	(59)	1,319
Ending Balance	$ 788	$ 847	$ (472)

Change in Accumulated Other 130

Change in Accumulated Other Comprehensive Income - Components of Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains on securities transactions									$ 1,478	$ 1,037	$ 3,516
Income before taxes	$ 21,968	$ 22,504	$ 19,121	$ 20,213	$ 19,285	$ 17,555	$ 19,826	$ 15,894	83,806	72,560	72,812
Income taxes	(7,984)	(8,078)	(6,887)	(7,324)	(6,577)	(6,142)	(7,101)	1,017	(30,273)	(18,803)	(25,930)
Net Income	$ 13,984	$ 14,426	$ 12,234	$ 12,889	$ 12,708	$ 11,413	$ 12,725	$ 16,911	53,533	53,757	46,882
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Income									(1,387)	676	(2,180)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Net Unrealized Losses on Defined Benefit Pension Plan [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service costs									(76)	891
Transition obligation										246
Actuarial losses									(20)	991
Income before taxes									(96)	2,128
Income taxes									37	(809)
Net Income									(59)	1,319
Reclassification out of Accumulated Other Comprehensive Income [Member] | Realized Gains on Securities Transactions [Member] | Net Unrealized Gains (Losses) on Investment Securities Available-for-Sale [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains on securities transactions									(1,478)	(1,036)	(3,516)
Income taxes									562	393	1,336
Net Income									(916)	$ (643)	$ (2,180)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Amortization of Net Unrealized Gains to Income During Period [Member] | Net Unrealized Gains (Losses) on Investment Securities Available-for-Sale [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income on investment securities									(646)
Income taxes									234
Net Income									$ (412)

Legal and Other Proceedings - A

Legal and Other Proceedings - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015USD ($)
Loss Contingencies [Line Items]
Additions to other significant pending legal or other proceedings	$ 0
Goldstein Case [Member]
Loss Contingencies [Line Items]
Disputed amount	5,000,000
Reasonably possible losses for legal proceedings, minimum	0
Reasonably possible losses for legal proceedings, maximum	$ 5,000,000

Quarterly Financial Summary - Q

Quarterly Financial Summary - Quarterly Financial Summary (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 51,813	$ 44,857	$ 43,055	$ 42,851	$ 42,340	$ 40,799	$ 39,413	$ 37,785	$ 182,576	$ 160,337	$ 146,922
Interest expense	3,917	3,860	3,965	4,034	4,101	4,052	3,936	3,741	15,776	15,830	15,334
Net interest income	47,896	40,997	39,090	38,817	38,239	36,747	35,477	34,044	166,800	144,507	131,588
Provision for loan losses	1,778	1,453	3,773	786	567	333	50	2,630	7,790	3,580	7,172
Net interest income after provision for loan losses	46,118	39,544	35,317	38,031	37,672	36,414	35,427	31,414	159,010	140,927	124,416
Noninterest income	23,037	21,665	22,458	21,095	19,987	20,304	19,623	18,364	88,255	78,278	80,151
Noninterest expenses	47,187	38,705	38,654	38,913	38,374	39,163	35,224	33,884	163,459	146,645	131,755
Income before taxes	21,968	22,504	19,121	20,213	19,285	17,555	19,826	15,894	83,806	72,560	72,812
Income tax provision (benefit)	7,984	8,078	6,887	7,324	6,577	6,142	7,101	(1,017)	30,273	18,803	25,930
Net Income	$ 13,984	$ 14,426	$ 12,234	$ 12,889	$ 12,708	$ 11,413	$ 12,725	$ 16,911	$ 53,533	$ 53,757	$ 46,882
Earnings per share:
Basic	$ 0.47	$ 0.52	$ 0.43	$ 0.46	$ 0.45	$ 0.42	$ 0.48	$ 0.63	$ 1.88	$ 1.98	$ 1.71
Diluted	$ 0.46	$ 0.51	$ 0.43	$ 0.45	$ 0.44	$ 0.41	$ 0.46	$ 0.62	$ 1.85	$ 1.93	$ 1.69