WSFS Financial (WSFS) 10-Q 6 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Trading Symbol	WSFS
Entity Registrant Name	WSFS FINANCIAL CORP
Entity Central Index Key	828,944
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		29,853,215

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest income:
Interest and fees on loans	$ 38,437	$ 34,850	$ 111,771	$ 100,371
Interest on mortgage-backed securities	3,588	3,317	10,544	10,130
Interest and dividends on investment securities	875	837	2,587	2,443
Interest on reverse mortgage loans	1,561	1,323	3,963	3,917
Other interest income	396	472	1,898	1,136
Total interest income	44,857	40,799	130,763	117,997
Interest expense:
Interest on deposits	1,587	1,823	5,354	5,193
Interest on Federal Home Loan Bank advances	868	663	2,332	1,850
Interest on trust preferred borrowings	343	332	1,009	988
Interest on senior debt	942	941	2,825	2,824
Interest on bonds payable				15
Interest on other borrowings	120	293	339	859
Total interest expense	3,860	4,052	11,859	11,729
Net interest income	40,997	36,747	118,904	106,268
Provision for loan losses	1,453	333	6,012	3,013
Net interest income after provision for loan losses	39,544	36,414	112,892	103,255
Noninterest income:
Credit/debit card and ATM income	6,486	6,219	18,975	17,995
Deposit service charges	4,338	4,477	12,342	13,092
Investment management and fiduciary revenue	5,373	4,332	16,173	12,453
Mortgage banking activities, net	1,251	1,229	4,544	3,066
Loan fee income	405	466	1,337	1,406
Bank-owned life insurance income	162	185	544	467
Investment securities gains, net	76	36	1,004	979
Other income	3,574	3,360	10,299	8,833
Total non interest income	21,665	20,304	65,218	58,291
Noninterest expense:
Salaries, benefits and other compensation	20,784	19,292	62,139	56,434
Occupancy expense	3,757	3,456	11,272	10,754
Equipment expense	2,059	2,063	6,100	5,610
Data processing and operations expenses	1,570	1,609	4,451	4,611
Professional fees	2,039	1,762	5,264	5,083
FDIC expenses	786	666	2,142	2,011
Loan workout and OREO expenses	166	664	495	1,919
Marketing expense	619	643	2,210	1,584
Corporate development expense	855	2,620	2,137	3,032
Other operating expenses	6,070	6,388	20,062	17,234
Total non interest expenses	38,705	39,163	116,272	108,272
Income before taxes	22,504	17,555	61,838	53,274
Income tax provision	8,078	6,142	22,289	12,225
Net income	$ 14,426	$ 11,413	$ 39,549	$ 41,049
Earnings per share:
Basic	$ 0.52	$ 0.42	$ 1.41	$ 1.53
Diluted	$ 0.51	$ 0.41	$ 1.39	$ 1.49

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 14,426	$ 11,413	$ 39,549	$ 41,049
Net change in unrealized gains (losses) on investment securities available-for-sale
Net unrealized gains (losses) arising during the period, net of tax expense (benefit) of $3,787, $(477), $2,892 and $11,060, respectively	6,178	(778)	4,721	18,046
Less: reclassification adjustment for net gains on sales realized in net income, net of tax expense of ($29), ($13), ($381) and ($371), respectively	(47)	(23)	(623)	(608)
Net change in unrealized (losses) gains on investment securities available-for-sale	6,131	(801)	4,098	17,438
Net change in securities held-to-maturity
Amortization of unrealized gain on securities reclassified to held-to-maturity, net of tax benefit of ($55), $0, ($175), $0, respectively	(104)		(312)
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 ($9), $3, ($27) and $39, respectively	(15)	5	(45)	65
Net current-period other comprehensive income (loss)	6,012	(796)	3,741	17,503
Total comprehensive income	$ 20,438	$ 10,617	$ 43,290	$ 58,552

Consolidated Statements of Com4

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net change in unrealized gains (losses), tax expense (benefit)	$ 3,787	$ (477)	$ 2,892	$ 11,060
Reclassification adjustment for gains, tax expense	(29)	(13)	(381)	(371)
Amortization of unrealized gain on securities reclassified to held-to-maturity, tax benefit	(55)	0	(175)	0
Change in unfunded pension liability related to unrealized (loss) gain, prior service cost and transition obligation, tax (benefit) expense	$ (9)	$ 3	$ (27)	$ 39

Consolidated Statements of Cond

Consolidated Statements of Condition - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 94,756	$ 93,717
Cash in non-owned ATMs	434,044	414,188
Interest-bearing deposits in other banks	237	134
Total cash and cash equivalents	529,037	508,039
Investment securities, available-for-sale	756,731	740,124
Investment securities, held-to-maturity at cost	138,060	126,168
Loans held-for-sale at fair value	33,979	28,508
Loans, net of allowance for loan losses of $36,412 at September 30, 2015 and $39,426 at December 31, 2014	3,324,020	3,156,652
Reverse mortgage loans	24,476	29,298
Bank-owned life insurance	77,053	76,509
Stock in Federal Home Loan Bank of Pittsburgh, at cost	27,943	23,278
Other real estate owned	3,299	5,734
Accrued interest receivable	11,770	11,782
Premises and equipment	35,304	35,074
Goodwill	48,787	48,651
Intangible assets	7,552	8,942
Other assets	49,931	54,561
Total assets	5,067,942	4,853,320
Deposits:
Noninterest-bearing demand	904,896	804,678
Interest-bearing demand	727,816	688,370
Money market	1,015,985	1,066,224
Savings	388,213	402,032
Time	201,537	253,302
Jumbo certificates of deposit - customer	182,573	247,671
Total customer deposits	3,421,020	3,462,277
Brokered deposits	223,582	186,958
Total deposits	3,644,602	3,649,235
Federal funds purchased and securities sold under agreements to repurchase	91,000	128,225
Federal Home Loan Bank advances	643,027	405,894
Trust preferred borrowings	67,011	67,011
Senior debt	55,000	55,000
Other borrowed funds	12,341	11,645
Accrued interest payable	1,760	1,004
Other liabilities	47,584	46,255
Total liabilities	4,562,325	4,364,269
Stockholders' Equity:
Common stock $0.01 par value, 65,000,000 shares authorized; issued 55,933,152 at September 30, 2015 and 55,697,124 at December 31, 2014	559	557
Capital in excess of par value	206,887	201,130
Accumulated other comprehensive income	7,241	3,500
Retained earnings	558,438	523,099
Treasury stock at cost, 28,541,521 shares at September 30, 2015 and 27,489,288 shares at December 31, 2014	(267,508)	(239,235)
Total stockholders' equity	505,617	489,051
Total liabilities and stockholders' equity	$ 5,067,942	$ 4,853,320

Consolidated Statements of Con6

Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for loan losses	$ 36,412	$ 39,426
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	65,000,000	65,000,000
Common stock, issued	55,933,152	55,697,124
Treasury stock, shares	28,541,521	27,489,288

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities:
Net Income	$ 39,549	$ 41,049
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	6,012	3,013
Depreciation of premises and equipment, net	4,650	4,436
Amortization of fees and discounts, net	11,221	7,322
Amortization of intangible assets	1,258	879
Decrease (increase) in accrued interest receivable	12	(637)
(Increase) decrease in other assets	(253)	835
Origination of loans held-for-sale	(350,584)	(174,469)
Proceeds from sales of loans held-for-sale	348,760	180,794
Gain on mortgage banking activities, net	(4,544)	(3,066)
Gain on sale of securities, net	(1,004)	(979)
Stock-based compensation expense	3,319	3,637
Excess tax benefit from stock-based compensation	(785)	(551)
Increase in accrued interest payable	756	2,373
Increase (decrease) in other liabilities	1,524	(2,324)
(Gain) loss on sale of other real estate owned and valuation adjustments, net	(298)	91
Deferred income tax expense (benefit)	2,418	(5,198)
Increase in value of bank-owned life insurance	(527)	(467)
Increase in capitalized interest, net	(4,088)	(4,184)
Net cash provided by operating activities	57,396	52,554
Investing activities:
Calls of investment securities held-to-maturity	3,881
Purchases of investment securities held-to-maturity	(19,195)
Repayments of investment securities held-to-maturity	970
Maturities of investment securities available for sale		2,335
Sale of investment securities available-for-sale	117,380	200,734
Purchases of investment securities available-for-sale	(209,947)	(217,617)
Repayments of investment securities available-for-sale	80,293	54,328
Repayments on reverse mortgages	9,559	13,049
Disbursements for reverse mortgages	(649)	(929)
Net increase in loans	(181,290)	(67,824)
Acquisition of FNBW, net of cash acquired		(25,590)
Net (increase) decrease in stock of FHLB	(4,665)	6,087
Sales of assets acquired through foreclosure, net	5,278	3,807
Investment in premises and equipment, net	(4,968)	(2,370)
Net cash used for investing activities	(203,353)	(33,990)
Financing activities:
Net increase in demand and saving deposits	76,241	3,774
(Decrease) increase in time deposits	(116,863)	3,379
Increase in brokered deposits	36,624	74,440
Increase in loan payable	61	61
Repayment of reverse mortgage trust bonds payable		(21,990)
Receipts from FHLB advances	46,342,654	68,802,762
Repayments of FHLB advances	(46,105,521)	(68,928,745)
Receipts from federal funds purchased and securities sold under agreement to repurchase	22,843,325	19,040,751
Repayments of federal funds purchased and securities sold under agreement to repurchase	(22,855,550)	(19,037,751)
Maturity of repurchase agreement	(25,000)
Dividends paid	(4,216)	(3,213)
Issuance of common stock and exercise of common stock options	2,688	1,376
Reissuance of Treasury Stock for FNBW purchase, net		32,916
Purchase of treasury stock	(28,273)
Excess tax benefit from stock-based compensation	785	551
Net cash provided by (used for) financing activities	166,955	(31,689)
Increase (decrease) in cash and cash equivalents	20,998	(13,125)
Cash and cash equivalents at beginning of period	508,039	484,426
Cash and cash equivalents at end of period	529,037	471,301
Supplemental Disclosure of Cash Flow Information:
Cash paid for interest during the period	11,103	9,126
Cash paid for income taxes, net	16,558	19,675
Loans transferred to other real estate owned	2,545	3,633
Loans transferred to portfolio from held-for-sale at fair value	104	2,169
Net change in accumulated other comprehensive income	3,741	17,503
Fair Value of assets acquired, net of cash received		245,910
Fair Value of liabilities assumed		236,787
Non-cash goodwill adjustments, net	$ 136	$ 46

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	1. BASIS OF PRESENTATION General Our unaudited Consolidated Financial Statements include the accounts of WSFS Financial Corporation (the Company, our Company, we, our or us), Wilmington Savings Fund Society, FSB (WSFS Bank or the Bank) and Cypress Capital Management, LLC (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 Entity Services LLC (Monarch). The acronyms and abbreviations below are used in the unaudited Notes to Consolidated Financial Statements as well as in 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. AICPA: American Institute of Certified Public FASB: Financial Accounting Standards Board Accountants FDIC: Federal Deposit Insurance Corporation Allowance: Allowance for loan losses or ALLL Federal Reserve: Board of Governors of the Federal Alliance: Alliance Bancorp Inc. of Pennsylvania Reserve System Array: Array Financial Group Monarch: Monarch Entity Services, LLC Arrow: Arrow Land Transfer FHLB: Federal Home Loan Bank ASC: Accounting standard codification FHLMC: Federal Home Loan Mortgage Corporation Associate: Employee GAAP: U.S. Generally Accepted Accounting Principles ASU: Accounting standard update GNMA: Government National Mortgage Association BCBS: Basel Committee on Banking Supervision GSE: U.S. Government and government sponsored C&I: Commercial & Industrial (loans) enterprises CMO: Collateralized mortgage obligation NSFR: Net stable funding ratio Cypress: Cypress Capital Management, LLC MBS: Mortgage-backed securities Dodd-Frank Act: Dodd-Frank Wall Street Reform OCC: Office of the Comptroller of the Currency and Consumer Protection Act of 2010 OREO: Other real estate owned DTA: Deferred tax asset OTTI: Other-than-temporary impairment Exchange Act: Securities Exchange Act of 1934 Overview Founded in 1832, the Bank is the seventh oldest bank continuously operating under the same name in the United States. We provide residential and commercial real estate, commercial and consumer lending services, as well as retail deposit and cash management services. Lending activities are funded primarily with customer deposits and borrowings. In addition, we offer a variety of wealth management and trust services to personal and corporate customers through our Wealth Management segment. The FDIC insures our customers’ deposits to their legal maximums. We serve our customers primarily from our 55 offices located in Delaware (44), Pennsylvania (9), Virginia (1) and Nevada (1) and through our website at www.wsfsbank.com 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. Our accounting and reporting policies conform to GAAP, prevailing practices within the banking industry for interim financial information and Rule 10-01 of SEC Regulation S-X (Rule 10-01). Rule 10-01 does not require us to include all information and notes that would be required in audited financial statements. Operating results for the periods presented are not necessarily indicative of the results that may be expected for any future quarters or for the year ending December 31, 2015. These unaudited, interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and related notes included in our 2014 Annual Report on Form 10-K that was filed with the SEC on March 16, 2015 and is available at www.sec.gov Whenever necessary, reclassifications have been made to the prior period Consolidated Financial Statements to conform to the current period’s presentation. All significant intercompany transactions were eliminated in consolidation. The significant accounting policies used in preparation of our Consolidated Financial Statements are disclosed in our 2014 Annual Report on Form 10-K. There have not been any material changes in our significant accounting policies from those contained in our 2014 Annual Report on Form 10-K. 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. On May 18, 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. 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 September 30, 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. 2014-9, 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 2015-04 Compensation—Retirement Benefits (Topic 715). 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.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2015
Business Combinations [Abstract]
Business Combinations	2. BUSINESS COMBINATIONS 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. For additional information see Note 16. Subsequent Events. 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. For additional information regarding this business combination, please see Note 2 in our Annual Report on Form 10-K for the year ended December 31, 2014. 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 in 2015: (In Thousands) Fair Value Goodwill resulting from the acquisition of FNBW reported as of December 31, 2014 $ 16,370 Effects of adjustments to: Assets 236 Liabilities (100 ) Final purchase price — Adjusted goodwill resulting from the acquisition of FNBW as of September 30, 2015 $ 16,506 The adjustments made to goodwill during the first nine months of 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. The fair value of acquired assets and liabilities is now considered final. Direct costs related to the acquisition were expensed as incurred. During the three and nine months ended September 30, 2015, the Company incurred $12,000 and $109,000 in merger expenses related to FNBW compared to $2.5 million and $2.9 million for the three and nine months ended September 30, 2014.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share	3. EARNINGS PER SHARE The following table shows the computation of basic and diluted earnings per share: Three Months Ended Nine Months Ended (In Thousands, Except Per Share Data) 2015 2014 2015 2014 Numerator: Net income $ 14,426 $ 11,413 $ 39,549 $ 41,049 Denominator: Weighted average basic shares 27,721 27,182 28,035 26,882 Dilutive potential common shares 511 744 468 710 Weighted average fully diluted shares 28,232 27,926 28,503 27,592 Earnings per share: Basic $ 0.52 $ 0.42 $ 1.41 $ 1.53 Diluted $ 0.51 $ 0.41 $ 1.39 $ 1.49 Outstanding common stock equivalents having no dilutive effect 83 131 184 131

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Investment Securities	4. INVESTMENT SECURITIES The following tables detail the amortized cost and the estimated fair value of our investment securities classified as available-for-sale and held-to-maturity. None of our investment securities are classified as trading. (In Thousands) Amortized Gross Gross Fair Value Available-for-Sale Securities: September 30, 2015 GSE $ 31,044 $ 64 $ 1 $ 31,107 CMO 251,729 2,538 600 253,667 FNMA MBS 296,373 3,838 439 299,772 FHLMC MBS 109,327 1,271 124 110,474 GNMA MBS 60,930 834 53 61,711 $ 749,403 $ 8,545 $ 1,217 $ 756,731 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) September 30, 2015 State and political subdivisions $ 138,060 $ 670 $ 592 $ 138,138 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 $3.1 million and $3.6 million at September 30, 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 available-for-sale and held-to-maturity at September 30, 2015 and December 31, 2014 are presented in the table below: Available-for-Sale (In Thousands) September 30, 2015 Amortized Fair Value Within one year $ 3,995 $ 4,000 After one year but within five years 30,032 30,112 After five years but within ten years 192,473 194,009 After ten years 522,903 528,610 $ 749,403 $ 756,731 December 31, 2014 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) September 30, 2015 Amortized Fair Value Within one year $ 1,712 $ 1,714 After one year but within five years 3,925 3,913 After five years but within ten years 7,964 8,053 After ten years 124,459 124,458 $ 138,060 $ 138,138 December 31, 2014 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 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 $435.0 million and $470.4 million were pledged as collateral for retail customer repurchase agreements, municipal deposits, and other obligations as of September 30, 2015 and December 31, 2014, respectively. During the first nine months of 2015 and 2014, we sold $117.3 million and $170.4 million of investment securities categorized as available-for-sale, for a gain of $1.0 million and $979,000, respectively. We incurred $1,000 in losses from sales during the first nine months of 2015. Sales resulted in no losses during the first nine months of 2014. As of September 30, 2015 and December 31, 2014, our investment securities portfolio had remaining unamortized premiums of $19.6 million and $22.4 million and unaccreted discounts of $234,000 and $188,000, respectively. 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 September 30, 2015 and December 31, 2014: Duration of Unrealized Loss Position Less than 12 months 12 months or longer Total (In Thousands) September 30, 2015 Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized GSE $ 3,013 $ 1 $ — $ — $ 3,013 $ 1 CMO 27,739 218 27,740 382 55,479 600 FNMA MBS 53,423 439 — — 53,423 439 FHLMC MBS 4,814 3 4,149 121 8,963 124 GNMA MBS 1,943 1 2,409 52 4,352 53 State and political subdivisions 69,695 592 — — 69,695 592 Total temporarily impaired investments $ 160,627 $ 1,254 $ 34,298 $ 555 $ 194,925 $ 1,809 December 31, 2014 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 investment securities in an unrealized loss position as of December 31, 2014. At September 30, 2015, we owned investment securities totaling $194.9 million in which the amortized cost basis exceeded fair value. Total unrealized losses on these securities were $1.8 million at September 30, 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 OTTI. 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 two, were AA-rated or better at the time of purchase and remained investment grade at September 30, 2015. All securities were evaluated for OTTI at September 30, 2015 and December 31, 2014. The result of this evaluation showed no OTTI as of September 30, 2015 or December 31, 2014. The estimated weighted average duration of MBS was 4.3 years at September 30, 2015.

Loans

Loans	9 Months Ended
	Sep. 30, 2015
Receivables [Abstract]
Loans	5. LOANS The following details our loan portfolio by category: September 30, December 31, (In Thousands) Commercial and industrial $ 938,060 $ 920,072 Owner occupied commercial 811,548 788,598 Commercial mortgages 874,316 805,459 Construction 203,161 142,497 Residential 199,696 218,329 Consumer 341,210 327,543 $ 3,367,991 $ 3,202,498 Less: Deferred fees, net $ 7,559 $ 6,420 Allowance for loan losses 36,412 39,426 Net loans $ 3,324,020 $ 3,156,652 Acquired Credit Impaired Loans 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, Loans and Debt Securities Acquired with Deteriorated Credit Quality (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 following is the outstanding principal balance and carrying amounts for acquired credit impaired loans for which the company applies ASC 310-30 as of September 30, 2015: (In Thousands) September 30, 2015 Outstanding principal balance $ 18,546 Carrying amount 12,767 Allowance for loan losses 436 The following table presents the changes in accretable yield on the acquired credit impaired loans for the following nine month period: (In Thousands) January 1 through Balance at beginning of period $ 1,498 Accretion (822 ) Reclassification from nonaccretable difference 1,827 Additions/adjustments (363 ) Balance at the end of the period $ 2,140

Allowance for Loan Losses and C

Allowance for Loan Losses and Credit Quality Information	9 Months Ended
	Sep. 30, 2015
Text Block [Abstract]
Allowance for Loan Losses and Credit Quality Information	6. ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY INFORMATION Allowance for Loan Losses 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 nine months ended September 30, 2015, net charge-offs totaled $9.0 million or 0.27% of average loans, compared to $4.7 million, or 0.21% of average loans annualized, during the nine months ended September 30, 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 a net charge-off of $5.7 million during the nine months ending September 30, 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 nine months ended September 30, 2015, we increased the look-back period to 19 quarters from the 16 quarters used at December 31, 2014 and prior periods. This change in the look-back period resulted in an increase of $1.3 million to the total allowance at September 30, 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 19 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 8 quarters as of September 30, 2015. Further, our residential mortgage and consumer LEP remained at four quarters as of September 30, 2015. We evaluate LEP quarterly for reasonableness and complete a detailed historical analysis of our LEP by commercial and retail portfolios at least annually. The final component of the allowance 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. We review the qualitative estimates of valuation factors quarterly and management uses its judgment to make adjustments based on current trends. The model complexity risk factor remained at 3 basis points of total loans for September 30, 2015. 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 the activity of our allowance for loan losses and loan balances for three and nine months ended September 30, 2015: (In Thousands) Commercial Owner- Commercial Construction Residential Consumer Complexity (1) Total Three months ended September 30, 2015 Allowance for loan losses Beginning balance $ 14,512 $ 6,733 $ 6,831 $ 3,313 $ 2,709 $ 5,788 $ 959 $ 40,845 Charge-offs (4,147 ) (26 ) (804 ) — (130 ) (1,499 ) — (6,606 ) Recoveries 84 40 14 19 158 405 — 720 Provision (credit) 303 (62 ) 231 306 (362 ) 1,086 11 1,513 Provision for acquired loans — — (71 ) 104 (92 ) (1 ) — (60 ) Ending balance $ 10,752 $ 6,685 $ 6,201 $ 3,742 $ 2,283 $ 5,779 $ 970 $ 36,412 Nine months ended September 30, 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 (6,184 ) (623 ) (808 ) — (397 ) (2,570 ) — (10,582 ) Recoveries 198 62 83 179 195 839 — 1,556 Provision (credit) 3,485 574 (508 ) 863 50 1,460 (550 ) $ 5,374 Provision for acquired loans 416 29 168 104 (88 ) 9 — 638 Ending balance $ 10,752 $ 6,685 $ 6,201 $ 3,742 $ 2,283 $ 5,779 $ 970 $ 36,412 Period-end allowance allocated to: Loans individually evaluated for impairment $ 993 $ — $ 241 $ 214 $ 934 $ 202 $ — $ 2,584 Loans collectively evaluated for impairment 9,406 6,657 5,907 3,527 1,348 5,577 970 33,392 Acquired loans evaluated for impairment 353 28 53 1 1 — — 436 Ending balance $ 10,752 $ 6,685 $ 6,201 $ 3,742 $ 2,283 $ 5,779 $ 970 $ 36,412 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 5,775 $ 1,170 $ 6,805 $ 1,419 $ 14,613 $ 7,749 $ — $ 37,531 (2) Loans collectively evaluated for impairment 900,660 770,246 836,556 190,925 169,566 327,524 — 3,195,477 Acquired nonimpaired loans 28,998 37,937 25,555 8,223 15,137 5,930 — 121,780 Acquired impaired loans 2,627 2,195 5,400 2,594 380 7 — 13,203 Ending balance $ 938,060 $ 811,548 $ 874,316 $ 203,161 $ 199,696 $ 341,210 $ — $ 3,367,991 (3) The following table provides the activity of the allowance for loan losses and loan balances for the three and nine months ended September 30, 2014: (In Thousands) Commercial Owner Occupied Commercial Mortgages Construction Residential Consumer Complexity (1) Total Three months ended September 30, 2014 Allowance for loan losses Beginning balance $ 13,346 $ 7,986 $ 7,617 $ 2,319 $ 2,759 $ 6,299 $ 1,055 $ 41,381 Charge-offs (1,840 ) (272 ) (101 ) — (147 ) (372 ) — (2,732 ) Recoveries 66 77 4 8 86 261 — 502 Provision (credit) 1,833 454 (1,097 ) (897 ) (6 ) 56 (10 ) 333 Ending balance $ 13,405 $ 8,245 $ 6,423 $ 1,430 $ 2,692 $ 6,244 $ 1,045 $ 39,484 Nine months ended September 30, 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 (3,335 ) (593 ) (261 ) (88 ) (674 ) (2,095 ) — (7,046 ) Recoveries 873 244 43 192 129 792 — 2,273 Provision (credit) 3,116 956 (291 ) (2,000 ) 159 1,053 20 3,013 Ending balance $ 13,405 $ 8,245 $ 6,423 $ 1,430 $ 2,692 $ 6,244 $ 1,045 $ 39,484 Period-end allowance allocated to: Loans individually evaluated for impairment $ 1,573 $ 993 $ 240 $ — $ 850 $ 211 $ — $ 3,867 Loans collectively evaluated for impairment 11,832 7,252 6,183 1,430 1,842 6,033 1,045 35,617 Ending balance $ 13,405 $ 8,245 $ 6,423 $ 1,430 $ 2,692 $ 6,244 $ 1,045 $ 39,484 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 3,683 $ 3,390 $ 8,760 $ 1,419 $ 16,807 $ 6,610 $ — $ 40,669 (2) Loans collectively evaluated for impairment 839,753 760,680 737,394 131,996 193,792 309,478 — 2,973,093 Acquired nonimpaired loans 35,300 41,858 41,071 10,666 18,105 9,671 — 156,671 Acquired impaired loans 3,534 2,329 6,687 4,135 517 27 — 17,229 Ending balance $ 882,270 $ 808,257 $ 793,912 $ 148,216 $ 229,221 $ 325,786 $ — $ 3,187,662 (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 of $13.6 million and $11.8 million for the periods ending September 30, 2015 and 2014, respectively. Accruing troubled debt restructured loans are considered impaired loans. (3) Ending loan balances do not include deferred costs. Nonaccrual and Past Due Loans Nonaccruing loans are those 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 or 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 the process of collection. The following tables show our nonaccrual and past due loans at the dates indicated: September 30, 2015 (In Thousands) 30–59 Days 60–89 Days Past Due and Still Accruing Greater Than 90 Days Past Due and Total Past Due And Still Accruing Current Acquired Impaired Loans Nonaccrual Loans Total Loans Commercial $ 587 $ — $ — $ 587 $ 929,432 $ 2,627 $ 5,414 $ 938,060 Owner-Occupied commercial 1,300 — — 1,300 806,883 2,195 1,170 811,548 Commercial mortgages — — — — 862,196 5,400 6,720 874,316 Construction — — — — 200,567 2,594 — 203,161 Residential 4,436 1,081 423 5,940 186,788 380 6,588 199,696 Consumer 1,034 245 495 1,774 335,405 7 4,024 341,210 Total (1) $ 7,357 $ 1,326 $ 918 $ 9,601 $ 3,321,271 $ 13,203 $ 23,916 $ 3,367,991 % of Total Loans 0.22 % 0.04 % 0.03 % 0.29 % 98.61 % 0.39 % 0.71 % 100 % (1) The balances of above include $121.8 million of acquired nonimpaired loans. December 31, 2014 (In Thousands) 30–59 Days 60–89 Days Greater Than Total Past Accruing Acquired Nonaccrual Total 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 % (1) The balances of above include $145.8 million of acquired nonimpaired loans Impaired Loans Loans for which it is probable we will not collect all principal and interest due according to their 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 September 30, 2015 and December 31, 2014: September 30, 2015 (In Thousands) Ending Loan Balances Loans with (1) Loans with Related Contractual Principal Balances Average Loan Balances Commercial $ 6,138 $ 3,783 $ 2,355 $ 1,346 $ 12,836 $ 8,900 Owner-occupied commercial 2,090 1,170 920 28 2,468 2,364 Commercial mortgages 7,896 3,524 4,372 294 11,269 8,361 Construction 1,492 — 1,492 215 1,520 1,448 Residential 14,711 8,185 6,526 935 17,187 15,483 Consumer 7,749 6,575 1,174 202 9,290 6,590 Total (2) $ 40,076 $ 23,237 $ 16,839 $ 3,020 $ 54,570 $ 43,146 December 31, 2014 (In Thousands) Ending Loans with (1) Loans 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 $2.5 million in the ending loan balance and $3.3 million in the contractual principal balance. Interest income of $372,000 and $1.3 million was recognized on impaired loans during the three and nine months ended September 30, 2015, respectively. Interest income of $401,000 and $1.1 million was recognized on impaired loans during the three and nine months ended September 30, 2014. As of September 30, 2015, there were 37 residential loans and 13 commercial loans in the process of foreclosure. The total outstanding balance on the loans was $4.3 million and $2.2 million, 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, loans acquired by the Bank through its merger with FNBW are required to be reflected on the balance sheet at their fair values on the date of acquisition as opposed to their contractual values. Therefore, on the date of acquisition establishing an allowance for acquired loans is prohibited. After the acquisition date the Bank performs a separate allowance analysis on a quarterly basis to determine if an allowance for loan loss is necessary. Should the credit risk calculated exceed the purchased loan portfolio’s remaining credit mark, additional reserves will be added to the Bank’s allowance. When a purchased loan becomes impaired after its acquisition, it is evaluated as part of the Bank’s reserve analysis and a specific reserve is established to be included in the Bank’s allowance. 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 that are greater than 90 days past due are generally considered nonperforming and placed on nonaccrual status. The tables below provide information about the credit quality of loans in our commercial and residential and consumer portfolios. Commercial Credit Exposure (In Thousands) Commercial Owner-Occupied Commercial Construction Total Commercial (1) September 30, Dec. 31, Sept. 30, Dec. 31 Sept. 30, Dec. 31 Sept. 30, Dec. 31 Sept. 30, Dec. 31 2015 2014 2015 2014 2015 2014 2015 2014 2015 2014 Amount % Amount % Risk Rating: Special mention $ 13,759 $ 4,744 $ 16,048 $ 6,989 $ 10,239 $ 9,065 $ — $ — $ 40,046 $ 20,798 Substandard: Accrual 36,048 42,377 14,348 14,436 1,252 9,167 8,194 1,085 59,842 67,065 Nonaccrual 4,426 1,225 1,170 1,865 6,479 7,927 — 12,075 11,017 Doubtful 988 3,034 — 609 241 319 — 334 1,229 4,296 Total Special and Substandard 55,221 51,380 31,566 23,899 18,211 26,478 8,194 1,419 113,192 4 % 103,176 4 % Acquired impaired 2,627 3,269 2,195 2,264 5,400 5,976 2,594 3,863 12,816 0 15,372 — Pass 880,212 865,423 777,787 762,435 850,705 773,005 192,373 137,215 2,701,077 96 2,538,078 96 Total $ 938,060 $ 920,072 $ 811,548 $ 788,598 $ 874,316 $ 805,459 $ 203,161 $ 142,497 $ 2,827,085 100 % $ 2,656,626 100 % (1) Table includes $100.7 million and $119.8 million of acquired nonimpaired loans as of September 30, 2015 and December 31, 2014, respectively. Residential and Consumer Credit Exposure (In Thousands) Residential Consumer Total Residential and Consumer (2) Sept. 30, Dec. 31 Sept. 30, Dec. 31 30-Sep-15 Dec. 31, 2014 2015 2014 2015 2014 Amount Percent Amount Percent Nonperforming (1) $ 14,613 $ 15,666 $ 7,749 $ 6,376 $ 22,362 4 % $ 22,042 4 % Acquired impaired loans 380 512 7 9 387 — 521 — Performing 184,703 202,151 333,454 321,158 518,157 96 523,309 96 Total $ 199,696 $ 218,329 $ 341,210 $ 327,543 $ 540,906 100 % $ 545,872 100 % (1) Includes $11.8 million as of September 30, 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 $21.1 million and $26.0 million in acquired nonimpaired loans as of September 30, 2015 and December 31, 2014, respectively. Troubled Debt Restructurings (TDR) TDRs are recorded in accordance with FASB ASC 310-40, Troubled Debt Restructuring by Creditors (ASC 310-40) During the nine months ended September 30, 2015, the terms of 23 loans were modified in TDRs. Sixteen modifications were for consumer loans in which seven had their maturity dates extended, six were discharged bankruptcies, one was a rate concession and two were HELOC conversions. Six were residential mortgages in which three were discharged bankruptcies, two were maturity date extensions and one was a forbearance agreement. 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 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 payment is reasonably assured. The following table presents loans identified as TDRs during the three and nine months ended September 30, 2015 and 2014. (In Thousands) Three Months Ended September 30, 2015 Three Nine Months Ended September 30, 2015 Nine Commercial $ — $ 88 $ — $ 209 Owner Occupied Commercial — — 577 — Commercial mortgages — 3,430 — 3,430 Construction — 1,419 — 1,419 Residential 38 72 447 1,916 Consumer 643 1,097 1,306 1,612 Total $ 681 $ 6,106 $ 2,330 $ 8,586 During the nine months ended September 30, 2015, the TDRs set forth in the table above increased our allowance $23,000 through the allocation of a related reserve, and resulted in charge-offs of $69,000 compared to an increase in our allowance of $395,000 and charge-offs of $49,000 for the same period of 2014.

Reverse Mortgage Loans

Reverse Mortgage Loans	9 Months Ended
	Sep. 30, 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. Our investment in reverse mortgages totaled $24.5 million at September 30, 2015. The portfolio consists of 97 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 $47.1 million exceeds the outstanding book balance at September 30, 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 September 30, 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 2015 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 September 30, 2015, the internal rate of return (IRR) of 18.58% 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 September 30, 2015, the Company’s actuarially estimated cash payments to reverse mortgagors are as follows: (In Thousands) Year Ending Remaining in 2015 $ 152 2016 538 2017 429 2018 338 2019 264 Years 2020 - 2024 624 Years 2025 - 2029 131 Years 2030 - 2034 21 Thereafter 2 Total (1) $ 2,499 (1) 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 $5.2 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 $685,000 for the quarter ended September 30, 2015 with an IRR of 17.52%. If the future changes in collateral value were assumed to be reduced by 1%, income would decrease by $315,000 with an IRR of 18.09%. 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 $769,000. If the IRR decreased by 1%, the net present value would decrease by $752,000.

Goodwill and Intangibles

Goodwill and Intangibles	9 Months Ended
	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangibles	8. GOODWILL AND INTANGIBLES In accordance with FASB ASC 805, Business Combinations Intangibles-Goodwill and Other During the nine months ended September 30, 2015, we determined there were no events or other indicators of impairment as it relates to goodwill or other intangibles. The following table shows the allocation of goodwill to our reportable operating segments for purposes of goodwill impairment testing: Trust & WSFS Cash Wealth Consolidated (In Thousands) Bank Connect Management Company December 31, 2014 $ 43,517 $ — $ 5,134 $ 48,651 Changes in goodwill 136 — — 136 September 30, 2015 $ 43,653 $ — $ 5,134 $ 48,787 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. The following table summarizes intangible assets: Gross Net (In Thousands) Intangible Accumulated Intangible September 30, 2015 Assets Amortization Assets Core deposits $ 7,610 $ (4,170 ) $ 3,440 CB&T intangibles 3,142 (1,133 ) 2,009 Array and Arrow intangibles 2,353 (759 ) 1,594 Mortgage servicing rights 1,422 (913 ) 509 Total intangible assets $ 14,527 $ (6,975 ) $ 7,552 December 31, 2014 Core deposits $ 7,610 $ (3,321 ) $ 4,289 CB&T intangibles 3,142 (985 ) 2,157 Array and Arrow intangibles 2,353 (497 ) 1,856 Mortgage servicing rights 1,455 (815 ) 640 Total 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, straight-line or accelerated methods of amortization. During the nine months ended September 30, 2015, we recognized amortization expense on other intangible assets of $1.3 million. The following presents the estimated amortization expense of intangibles: Amortization (In Thousands) of Intangibles Remaining in 2015 $ 430 2016 1,434 2017 1,217 2018 1,137 2019 962 Thereafter 2,372 Total $ 7,552

Associate Benefit Plans

Associate Benefit Plans	9 Months Ended
	Sep. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Associate Benefit Plans	9. ASSOCIATE BENEFIT PLANS 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. As of December 31, 2014, we began to use the mortality table issued by the Office of the Actuary of the United States Bureau of Census in October 2014 in our calculation. We account for our obligations under the provisions of FASB ASC 715, Compensation - Retirement Benefits The following are disclosures of the net periodic benefit cost components of postretirement benefits measured at January 1, 2015 and 2014. Three months ended Nine months ended (In Thousands) 2015 2014 2015 2014 Service cost $ 15 $ 49 $ 44 $ 147 Interest cost 22 48 66 146 Prior service cost amortization (19 ) (14 ) (57 ) (44 ) Net (gain) loss recognition (5 ) 22 (15 ) 66 Net periodic benefit cost $ 13 $ 105 $ 38 $ 315

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	10. INCOME TAXES We account for income taxes in accordance with FASB ASC 740, Income Taxes As a result of the consolidation for accounting purposes of the SASCO reverse mortgage securitization trust during 2013, a deferred tax asset (DTA) of approximately $4.9 million was recorded. In addition, we recorded a $1.8 million deferred tax liability associated with our original 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 as well as eliminated the $1.8 million deferred tax liability, which resulted in an overall income tax benefit of $6.7 million in the quarter ended March 31, 2014. 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 were no unrecognized tax benefits as of September 30, 2015. We record interest and penalties on potential income tax deficiencies as income tax expense. Our federal and state tax returns for the 2012 through 2014 tax years are subject to examination as of September 30, 2015. No state income tax return examinations are currently in process. We do not expect to record or realize any material unrecognized tax benefits during 2015. 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 nine months ended September 30, 2015 were $1.5 million, $1.4 million and $223,000, respectively. The carrying value of the investment in affordable housing credits is $11.4 million at September 30, 2015, compared to $13.0 million at December 31, 2014.

Fair Value Disclosures of Finan

Fair Value Disclosures of Financial Assets and Liabilities	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Disclosures of Financial Assets and Liabilities	11. FAIR VALUE DISCLOSURES OF FINANCIAL ASSETS AND LIABILITIES 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. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy as of September 30, 2015 is set forth in the following table: (In Thousands) Quoted Significant Significant Total Fair Description (Level 1) (Level 2) (Level 3) Value Assets measured at fair value on a recurring basis Collateralized mortgage obligations $ — $ 253,667 $ — $ 253,667 FNMA — 299,772 — 299,772 FHLMC — 110,474 — 110,474 GNMA — 61,711 — 61,711 U.S. Government and agencies — 31,107 — 31,107 Total assets measured at fair value on a recurring basis $ — $ 756,731 $ — $ 756,731 Assets measured at fair value on a nonrecurring basis Other real estate owned $ — $ — $ 3,299 $ 3,299 Loans held-for-sale — 33,979 — 33,979 Impaired loans (collateral dependent) — — 37,056 37,056 Total assets measured at fair value on a nonrecurring basis $ — $ 33,979 $ 40,355 $ 74,334 There were no material liabilities measured at fair value as of September 30, 2015. The table below presents the balances of assets measured at fair value as of December 31, 2014: (In Thousands) Quoted Significant Significant Total Description (Level 1) (Level 2) (Level 3) Fair Value Assets measured at fair value on a recurring basis Available-for-sale securities: Collateralized mortgage obligations $ — $ 192,932 $ — $ 192,932 FNMA — 292,553 — 292,553 FHLMC — 146,882 — 146,882 GNMA — 77,797 — 77,797 U.S. Government and agencies 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 material liabilities measured at fair value as of 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 September 30, 2015 securities classified as available-for-sale are reported at fair value using Level 2 inputs. Included in the Level 2 total are approximately $31.1 million in Federal Agency debentures, and $725.6 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 During 2014 we elected to record loans held-for-sale at their fair value. 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 $40.1 million and $46.7 million at September 30, 2015 and December 31, 2014, respectively. The valuation allowance on impaired loans was $3.0 million as of September 30, 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. 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 discussion of our internally developed models, see “Fair Value of Financial Assets” in this note. Loans held-for sale Loans held-for- sale are carried at their fair value. 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 For additional information on these reverse mortgage related assets, see Note 7, Reverse Mortgage Related Assets, to the unaudited Consolidated Financial Statements. 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 WSFS holds 50,833 shares of Visa Class B stock. Following resolution of Visa’s covered litigation, shares of Visa’s Class B stock will be converted to Visa Class A shares (the current conversion rate is 1.6483 shares of Class A stock for each share of Class B stock). As our ownership is related to our prior participation in Visa’s network, while Visa operated as a cooperative, this ownership is recorded on our books with zero basis. 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 $5.8 million as of September 30, 2015. Demand deposits, savings, deposits and time deposit The fair value 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 September 30, 2015 December 31, 2014 Measurement Book Value Fair Value Book Value Fair Value Financial assets: Cash and cash equivalents Level 1 $ 529,037 529,037 $ 508,039 $ 508,039 Investment securities available-for-sale See previous 756,731 756,731 740,124 740,124 Investment securities held-to-maturity Level 2 138,060 138,138 126,168 126,171 Loans, held-for-sale See previous 33,979 33,979 28,508 28,508 Loans, net Level 2 3,324,020 3,281,986 3,156,652 3,121,855 Reverse mortgage loans Level 3 24,476 24,476 29,298 29,298 Stock in FHLB of Pittsburgh Level 2 27,943 27,943 23,278 23,278 Accrued interest receivable Level 2 11,770 11,770 11,782 11,782 Other assets Level 3 — 5,837 — 4,837 Financial liabilities: Deposits Level 2 3,644,602 3,464,311 3,649,235 3,461,218 Borrowed funds Level 2 868,379 871,082 667,775 672,850 Standby letters of credit Level 3 191 191 151 151 Accrued interest payable Level 2 1,760 1,760 1,004 1,004 At September 30, 2015 and December 31, 2014 we had no commitments to extend credit measured at fair value.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Segment Information	12. SEGMENT INFORMATION In accordance with FASB ASC 280, Segment Reporting The WSFS Bank segment provides financial products to commercial and retail customers through its 55 offices located in Delaware (44), Pennsylvania (9) Virginia (1) and Nevada (1). 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 these 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 turnkey ATM 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 with approximately $615 million in assets under management. Cypress’ primary market segment is high net worth individuals, offering a ‘balanced’ investment style focused on preservation of capital and providing for current income. Christiana Trust, with $8.75 billion in assets under management and administration, 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. For the three months ended September 30, 2015: (In Thousands) WSFS Bank Cash Wealth Total Statement of Operations External customer revenues: Interest income $ 42,873 $ — $ 1,984 $ 44,857 Noninterest income 8,944 7,138 5,583 21,665 Total external customer revenues 51,817 7,138 7,567 66,522 Inter-segment revenues: Interest income 879 — 1,697 2,576 Noninterest income 2,028 219 26 2,273 Total inter-segment revenues 2,907 219 1,723 4,849 Total revenue 54,724 7,357 9,290 71,371 External customer expenses: Interest expense 3,688 — 172 3,860 Noninterest expenses 30,066 4,255 4,384 38,705 Provision for loan losses 1,345 — 108 1,453 Total external customer expenses 35,099 4,255 4,664 44,018 Inter-segment expenses: Interest expense 1,697 394 485 2,576 Noninterest expenses 245 624 1,404 2,273 Total inter-segment expenses 1,942 1,018 1,889 4,849 Total expenses 37,041 5,273 6,553 48,867 Income before taxes $ 17,683 $ 2,084 $ 2,737 $ 22,504 Income tax provision 8,078 Consolidated net income $ 14,426 Capital expenditures $ 3,487 $ 1,466 $ 16 $ 4,969 As of September 30, 2015: Statement of Condition Cash and cash equivalents $ 78,209 $ 448,594 $ 2,234 $ 529,037 Goodwill 43,653 — 5,134 48,787 Other segment assets 4,305,469 — 184,649 4,490,118 Total segment assets $ 4,427,331 $ 448,594 $ 192,017 $ 5,067,942 For the three months ended September 30, 2014: (In Thousands) WSFS Bank Cash Wealth Total Statement of Operations External customer revenues: Interest income $ 38,777 $ — $ 2,022 $ 40,799 Noninterest income 9,161 6,640 4,503 20,304 Total external customer revenues 47,938 6,640 6,525 61,103 Inter-segment revenues: Interest income 880 — 1,361 2,241 Noninterest income 1,602 204 32 1,838 Total inter-segment revenues 2,482 204 1,393 4,079 Total revenue 50,420 6,844 7,918 65,182 External customer expenses: Interest expense 3,952 — 100 4,052 Noninterest expenses 32,033 3,993 3,137 39,163 Provision for loan losses 198 — 135 333 Total external customer expenses 36,183 3,993 3,372 43,548 Inter-segment expenses Interest expense 1,361 360 520 2,241 Noninterest expenses 236 509 1,093 1,838 Total inter-segment expenses 1,597 869 1,613 4,079 Total expenses 37,780 4,862 4,985 47,627 Income before taxes $ 12,640 $ 1,982 $ 2,933 $ 17,555 Income tax provision 6,142 Consolidated net income 11,413 Capital expenditures $ 914 $ 67 $ — $ 981 As of December 31, 2014: Statement of Condition 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 $ 4,224,124 $ 433,533 $ 195,663 $ 4,853,320 For the nine months ended September 30, 2015: (In Thousands) WSFS Bank Cash Wealth Total Statement of Operations External customer revenues: Interest income $ 124,739 $ — $ 6,024 $ 130,763 Noninterest income 27,615 20,845 16,758 65,218 Total external customer revenues 152,354 20,845 22,782 195,981 Inter-segment revenues: Interest income 2,626 — 4,782 7,408 Noninterest income 5,810 601 73 6,484 Total inter-segment revenues 8,436 601 4,855 13,892 Total revenue 160,790 21,446 27,637 209,873 External customer expenses: Interest expense 11,422 — 437 11,859 Noninterest expenses 91,066 12,780 12,426 116,272 Provision for loan losses 5,688 — 324 6,012 Total external customer expenses 108,176 12,780 13,187 134,143 Inter-segment expenses: Interest expense 4,782 1,156 1,470 7,408 Noninterest expenses 674 1,882 3,928 6,484 Total inter-segment expenses 5,456 3,038 5,398 13,892 Total expenses 113,632 15,818 18,585 148,035 Income before taxes $ 47,158 $ 5,628 $ 9,052 $ 61,838 Income tax provision 22,289 Consolidated net income $ 39,549 Capital expenditures $ 4,603 $ 4,036 $ 29 $ 8,668 As of September 30, 2015: Statement of Condition Cash and cash equivalents $ 78,209 $ 448,594 $ 2,234 $ 529,037 Goodwill 43,653 — 5,134 48,787 Other segment assets 4,305,469 — 184,649 4,490,118 Total segment assets $ 4,427,331 $ 448,594 $ 192,017 $ 5,067,942 For the nine months ended September 30, 2014: (In Thousands) WSFS Bank Cash Connect Wealth Total Statement of Operations External customer revenues: Interest income $ 112,178 $ — $ 5,819 $ 117,997 Noninterest income 26,334 18,974 12,983 58,291 Total external customer revenues 138,512 18,974 18,802 176,288 Inter-segment revenues: Interest income 2,545 — 4,124 6,669 Noninterest income 5,041 601 85 5,727 Total inter-segment revenues 7,586 601 4,209 12,396 Total revenue 146,098 19,575 23,011 188,684 External customer expenses: Interest expense 11,413 — 316 11,729 Noninterest expenses 87,668 11,425 9,179 108,272 Provision for loan losses 2,320 — 693 3,013 Total external customer expenses 101,401 11,425 10,188 123,014 Inter-segment expenses: Interest expense 4,124 1,019 1,526 6,669 Noninterest expenses 686 1,688 3,353 5,727 Total inter-segment expenses 4,810 2,707 4,879 12,396 Total expenses 106,211 14,132 15,067 135,410 Income before taxes $ 39,887 $ 5,443 $ 7,944 $ 53,274 Income tax provision 12,225 Consolidated net income $ 41,049 Capital expenditures $ 2,207 $ 156 $ 3 $ 2,366 As of December 31, 2014: Statement of Condition 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 $ 4,224,124 $ 433,533 $ 195,663 $ 4,853,320

Indemnifications and Guarantees

Indemnifications and Guarantees	9 Months Ended
	Sep. 30, 2015
Text Block [Abstract]
Indemnifications and Guarantees	13. INDEMNIFICATIONS AND GUARANTEES Secondary Market Loan Sales Given the current interest rate environment, coupled with our desire not to hold these assets in our portfolio, we generally sell newly originated residential mortgage loans in the secondary market to mortgage loan aggregators and on a more limited basis, to GSEs such as FHLMC, FNMA, and the FHLB. Loans held-for-sale are reflected on our unaudited Consolidated Statements of Condition at fair value with changes in the value reflected in our unaudited Consolidated Statements of Cash Flows and Comprehensive Income. Gains and losses are recognized at the time of sale. We periodically retain the servicing rights on residential mortgage loans sold which result in monthly service fee income and are included in our intangible assets in our unaudited Consolidated Statements of Condition. Otherwise, we sell loans with servicing released on a nonrecourse basis. Rate-locked loan commitments that we intend to sell in the secondary market are accounted for as derivatives under the guidance promulgated in ASC 815, Derivatives and Hedging 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, first payment default by the borrower. These are customary repurchase provisions in the secondary market for conforming mortgage loan sales. These indemnifications may include our repurchase of the loans. Repurchases and losses have been rare and no provision is made for losses at the time of sale. We had one FNMA repurchase for the nine months ended September 30, 2015. Swap Guarantees. We entered into agreements with three unrelated financial institutions whereby those financial institutions entered into interest rate derivative contracts (interest rate swap transactions) with customers referred to them by us. By the terms of the agreements, those financial institutions have recourse to us for any exposure created under each swap transaction in the event the customer defaults on the swap agreement and the agreement is in a paying position to the third-party financial institution. This is a customary arrangement that allows smaller financial institutions like us to provide access to interest rate swap transactions for our customers without creating the swap ourselves. These swap guarantees are accounted for as credit derivatives under ASC 815 . At September 30, 2015 there were 114 variable-rate swap transactions between third party financial institutions and our customers, compared to 101 at December 31, 2014. The initial notional aggregated amount was approximately $451.5 million at September 30, 2015 compared to $417.9 million at December 31, 2014. At September 30, 2015 maturities ranged from approximately two months to 10.5 years. The aggregate market value of these swaps to the customers was a liability of $21.7 million at September 30, 2015 and $16.5 million at December 31, 2014. There were no loss reserves for swap guarantees as of September 30, 2015.

Change in Accumulated Other Com

Change in Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Change in Accumulated Other Comprehensive Income (Loss)	14. CHANGE IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Accumulated other comprehensive income (loss) includes unrealized gains and losses on available-for-sale investments and unrecognized prior service costs on defined benefit pension plans. Changes to 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 statement of operations either as a gain or loss. Changes to accumulated other comprehensive income by component are shown net of taxes in the following tables for the three and nine months periods indicated: (In Thousands) Net change in Net change in securities held-to- Net change in Total Balance, June 30, 2015 $ 620 $ (208 ) $ 817 $ 1,229 Other comprehensive income (loss) before reclassifications 6,178 — (15 ) 6,163 Less: Amounts reclassified from accumulated other comprehensive income (47 ) — — (47 ) Amortization of unrealized gain on securities reclassified to held-to-maturity — (104 ) — (104 ) Net current-period other comprehensive income (loss) 6,131 (104 ) (15 ) 6,012 Balance, September 30, 2015 $ 6,751 $ (312 ) $ 802 $ 7,241 Balance, June 30, 2014 $ (2,583 ) $ — $ (412 ) $ (2,995 ) Other comprehensive (loss) income before reclassifications (778 ) — 5 (773 ) Less: Amounts reclassified from accumulated other comprehensive loss (23 ) — — (23 ) Net current-period other comprehensive (loss) income (801 ) — 5 (796 ) Balance, September 30, 2014 $ (3,384 ) $ — $ (407 ) $ (3,791 ) (In Thousands) Net change in Net change in securities held-to- Net change in Total Balance, December 31, 2014 $ 2,653 $ — $ 847 $ 3,500 Other comprehensive income (loss) before reclassifications 4,721 — (45 ) 4,676 Less: Amounts reclassified from accumulated other comprehensive income (623 ) — — (623 ) Amortization of unrealized gain on securities reclassified to held-to-maturity — (312 ) — (312 ) Net current-period other comprehensive income (loss) 4,098 (312 ) (45 ) 3,741 Balance, September 30, 2015 $ 6,751 $ (312 ) $ 802 $ 7,241 Balance, December 31, 2013 (20,822 ) — $ (472 ) $ (21,294 ) Other comprehensive income (loss) before reclassifications 18,046 — 65 18,111 Less: Amounts reclassified from accumulated other comprehensive loss (608 ) — — (608 ) Net current-period other comprehensive income 17,438 — 65 17,503 Balance, September 30, 2014 $ (3,384 ) $ — $ (407 ) $ (3,791 ) The statements of operations impacted by components of other comprehensive income are presented in the table below: (In Thousands) Three Months Ended Affected line item in Statements of 2015 2014 Securities available-for-sale: Realized gains on securities transactions $ (76 ) $ (36 ) Security gains, net Income taxes 29 13 Income tax provision Net of tax $ (47 ) $ (23 ) 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 $ (159 ) $ — Interest income on investment securities Income taxes 55 — Income tax provision Net of tax $ (104 ) $ — Amortization of Defined Benefit Pension items: Prior service (credits) costs $ (19 ) $ 22 Actuarial (gains) losses (5 ) (14 ) Total before tax $ (24 ) $ 8 Salaries, benefits and other compensation Income taxes 9 (3 ) Income tax provision Net of tax (15 ) 5 Total reclassifications $ (166 ) $ (18 ) Nine Months Ended Affected line item in Statements of 2015 2014 Securities available-for-sale: Realized gains on securities transactions $ (1,004 ) $ (979 ) Security gains, net Income taxes 381 371 Income tax provision Net of tax $ (623 ) $ (608 ) 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 $ (487 ) $ — Interest income on investment securities Income taxes 175 — Income tax provision Net of tax $ (312 ) $ — Amortization of Defined Benefit Pension items: Prior service (credits) costs $ (57 ) $ 905 Transition obligation — 245 Actuarial (gains) losses (15 ) (1,046 ) Total before tax $ (72 ) $ 104 Salaries, benefits and other compensation Income taxes 27 (39 ) Income tax provision Net of tax $ (45 ) $ 65 Total reclassifications $ (980 ) $ (543 )

Legal and Other Proceedings

Legal and Other Proceedings	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Legal and Other Proceedings	15. 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. 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 September 30, 2015. Costs of litigation were initially covered by insurance; however, such costs have now exceeded the limits of insurance coverage for this case. Cross motions for summary judgment are currently pending before the court. Four purported shareholder derivative and class action complaints relating to the pending 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. 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. 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. Management does not anticipate that the ultimate liability, if any, arising out of such other proceedings will have a material effect on the Consolidated Financial Statements.

Subsequent Event

Subsequent Event	9 Months Ended
	Sep. 30, 2015
Subsequent Events [Abstract]
Subsequent Event	16. SUBSEQUENT EVENTS On October 9, 2015, the Company completed the merger of Alliance into the Company and Alliance Bank into WSFS Bank. Alliance is a locally-managed institution with eight branch locations headquartered in Broomall, PA. As of June 30, 2015, Alliance had approximately $340 million in deposits and $415 million in total assets. In accordance with the terms of the Agreement and Plan of Reorganization, dated March 2, 2015, holders of shares of Alliance common stock received, in aggregate, $26.6 million in cash and 2,459,223 shares or approximately 9% of outstanding 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 will be included in our Consolidated Financial Statements from the date of acquisition. The acquisition of Alliance will be accounted for as a business combination using the acquisition method of accounting, which includes estimating the fair value of assets acquired, liabilities assumed and consideration paid as of the acquisition date. These preliminary estimates will be completed during the fourth quarter of 2015 and will be subject to adjustments during the up to one year measurement period after the acquisition.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	General Our unaudited Consolidated Financial Statements include the accounts of WSFS Financial Corporation (the Company, our Company, we, our or us), Wilmington Savings Fund Society, FSB (WSFS Bank or the Bank) and Cypress Capital Management, LLC (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 Entity Services LLC (Monarch). The acronyms and abbreviations below are used in the unaudited Notes to Consolidated Financial Statements as well as in 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. AICPA: American Institute of Certified Public FASB: Financial Accounting Standards Board Accountants FDIC: Federal Deposit Insurance Corporation Allowance: Allowance for loan losses or ALLL Federal Reserve: Board of Governors of the Federal Alliance: Alliance Bancorp Inc. of Pennsylvania Reserve System Array: Array Financial Group Monarch: Monarch Entity Services, LLC Arrow: Arrow Land Transfer FHLB: Federal Home Loan Bank ASC: Accounting standard codification FHLMC: Federal Home Loan Mortgage Corporation Associate: Employee GAAP: U.S. Generally Accepted Accounting Principles ASU: Accounting standard update GNMA: Government National Mortgage Association BCBS: Basel Committee on Banking Supervision GSE: U.S. Government and government sponsored C&I: Commercial & Industrial (loans) enterprises CMO: Collateralized mortgage obligation NSFR: Net stable funding ratio Cypress: Cypress Capital Management, LLC MBS: Mortgage-backed securities Dodd-Frank Act: Dodd-Frank Wall Street Reform OCC: Office of the Comptroller of the Currency and Consumer Protection Act of 2010 OREO: Other real estate owned DTA: Deferred tax asset OTTI: Other-than-temporary impairment Exchange Act: Securities Exchange Act of 1934 Overview Founded in 1832, the Bank is the seventh oldest bank continuously operating under the same name in the United States. We provide residential and commercial real estate, commercial and consumer lending services, as well as retail deposit and cash management services. Lending activities are funded primarily with customer deposits and borrowings. In addition, we offer a variety of wealth management and trust services to personal and corporate customers through our Wealth Management segment. The FDIC insures our customers’ deposits to their legal maximums. We serve our customers primarily from our 55 offices located in Delaware (44), Pennsylvania (9), Virginia (1) and Nevada (1) and through our website at www.wsfsbank.com 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. Our accounting and reporting policies conform to GAAP, prevailing practices within the banking industry for interim financial information and Rule 10-01 of SEC Regulation S-X (Rule 10-01). Rule 10-01 does not require us to include all information and notes that would be required in audited financial statements. Operating results for the periods presented are not necessarily indicative of the results that may be expected for any future quarters or for the year ending December 31, 2015. These unaudited, interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and related notes included in our 2014 Annual Report on Form 10-K that was filed with the SEC on March 16, 2015 and is available at www.sec.gov Whenever necessary, reclassifications have been made to the prior period Consolidated Financial Statements to conform to the current period’s presentation. All significant intercompany transactions were eliminated in consolidation. The significant accounting policies used in preparation of our Consolidated Financial Statements are disclosed in our 2014 Annual Report on Form 10-K. There have not been any material changes in our significant accounting policies from those contained in our 2014 Annual Report on Form 10-K.
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. On May 18, 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.
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 September 30, 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. 2014-9, 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 2015-04 Compensation—Retirement Benefits (Topic 715). 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.
Income Taxes	We account for income taxes in accordance with FASB ASC 740, Income Taxes
Investments-Equity Method and Joint Ventures	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

Business Combinations (Tables)

Business Combinations (Tables) - First Wyoming Financial Corporation [Member]	9 Months Ended
	Sep. 30, 2015
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 in 2015: (In Thousands) Fair Value Goodwill resulting from the acquisition of FNBW reported as of December 31, 2014 $ 16,370 Effects of adjustments to: Assets 236 Liabilities (100 ) Final purchase price — Adjusted goodwill resulting from the acquisition of FNBW as of September 30, 2015 $ 16,506

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table shows the computation of basic and diluted earnings per share: Three Months Ended Nine Months Ended (In Thousands, Except Per Share Data) 2015 2014 2015 2014 Numerator: Net income $ 14,426 $ 11,413 $ 39,549 $ 41,049 Denominator: Weighted average basic shares 27,721 27,182 28,035 26,882 Dilutive potential common shares 511 744 468 710 Weighted average fully diluted shares 28,232 27,926 28,503 27,592 Earnings per share: Basic $ 0.52 $ 0.42 $ 1.41 $ 1.53 Diluted $ 0.51 $ 0.41 $ 1.39 $ 1.49 Outstanding common stock equivalents having no dilutive effect 83 131 184 131

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 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 investment securities classified as available-for-sale and held-to-maturity. None of our investment securities are classified as trading. (In Thousands) Amortized Gross Gross Fair Value Available-for-Sale Securities: September 30, 2015 GSE $ 31,044 $ 64 $ 1 $ 31,107 CMO 251,729 2,538 600 253,667 FNMA MBS 296,373 3,838 439 299,772 FHLMC MBS 109,327 1,271 124 110,474 GNMA MBS 60,930 834 53 61,711 $ 749,403 $ 8,545 $ 1,217 $ 756,731 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) September 30, 2015 State and political subdivisions $ 138,060 $ 670 $ 592 $ 138,138 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 $3.1 million and $3.6 million at September 30, 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 available-for-sale and held-to-maturity at September 30, 2015 and December 31, 2014 are presented in the table below: Available-for-Sale (In Thousands) September 30, 2015 Amortized Fair Value Within one year $ 3,995 $ 4,000 After one year but within five years 30,032 30,112 After five years but within ten years 192,473 194,009 After ten years 522,903 528,610 $ 749,403 $ 756,731 December 31, 2014 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) September 30, 2015 Amortized Fair Value Within one year $ 1,712 $ 1,714 After one year but within five years 3,925 3,913 After five years but within ten years 7,964 8,053 After ten years 124,459 124,458 $ 138,060 $ 138,138 December 31, 2014 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
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 September 30, 2015 and December 31, 2014: Duration of Unrealized Loss Position Less than 12 months 12 months or longer Total (In Thousands) September 30, 2015 Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized GSE $ 3,013 $ 1 $ — $ — $ 3,013 $ 1 CMO 27,739 218 27,740 382 55,479 600 FNMA MBS 53,423 439 — — 53,423 439 FHLMC MBS 4,814 3 4,149 121 8,963 124 GNMA MBS 1,943 1 2,409 52 4,352 53 State and political subdivisions 69,695 592 — — 69,695 592 Total temporarily impaired investments $ 160,627 $ 1,254 $ 34,298 $ 555 $ 194,925 $ 1,809 December 31, 2014 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

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2015
Summary of Loan Portfolio by Category	The following details our loan portfolio by category: September 30, December 31, (In Thousands) Commercial and industrial $ 938,060 $ 920,072 Owner occupied commercial 811,548 788,598 Commercial mortgages 874,316 805,459 Construction 203,161 142,497 Residential 199,696 218,329 Consumer 341,210 327,543 $ 3,367,991 $ 3,202,498 Less: Deferred fees, net $ 7,559 $ 6,420 Allowance for loan losses 36,412 39,426 Net loans $ 3,324,020 $ 3,156,652
Schedule of Outstanding Principal Balance and Carrying Amounts for Acquired Credit-Impaired Loans	The following is the outstanding principal balance and carrying amounts for acquired credit impaired loans for which the company applies ASC 310-30 as of September 30, 2015: (In Thousands) September 30, 2015 Outstanding principal balance $ 18,546 Carrying amount 12,767 Allowance for loan losses 436
Summary of Changes in Accretable Yield on Acquired Credit Impaired Loans	The following table presents the changes in accretable yield on the acquired credit impaired loans for the following nine month period: (In Thousands) January 1 through Balance at beginning of period $ 1,498 Accretion (822 ) Reclassification from nonaccretable difference 1,827 Additions/adjustments (363 ) Balance at the end of the period $ 2,140
First Wyoming Financial Corporation [Member]
Schedule of Loans Acquired Through Merger in Accordance with FASB ASC 310-30	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, Loans and Debt Securities Acquired with Deteriorated Credit Quality (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

Allowance for Loan Losses and29

Allowance for Loan Losses and Credit Quality Information (Tables)	9 Months Ended
	Sep. 30, 2015
Text Block [Abstract]
Schedule of Allowance for Loan Losses and Loan Balances	The following tables provide the activity of our allowance for loan losses and loan balances for three and nine months ended September 30, 2015: (In Thousands) Commercial Owner- Commercial Construction Residential Consumer Complexity (1) Total Three months ended September 30, 2015 Allowance for loan losses Beginning balance $ 14,512 $ 6,733 $ 6,831 $ 3,313 $ 2,709 $ 5,788 $ 959 $ 40,845 Charge-offs (4,147 ) (26 ) (804 ) — (130 ) (1,499 ) — (6,606 ) Recoveries 84 40 14 19 158 405 — 720 Provision (credit) 303 (62 ) 231 306 (362 ) 1,086 11 1,513 Provision for acquired loans — — (71 ) 104 (92 ) (1 ) — (60 ) Ending balance $ 10,752 $ 6,685 $ 6,201 $ 3,742 $ 2,283 $ 5,779 $ 970 $ 36,412 Nine months ended September 30, 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 (6,184 ) (623 ) (808 ) — (397 ) (2,570 ) — (10,582 ) Recoveries 198 62 83 179 195 839 — 1,556 Provision (credit) 3,485 574 (508 ) 863 50 1,460 (550 ) $ 5,374 Provision for acquired loans 416 29 168 104 (88 ) 9 — 638 Ending balance $ 10,752 $ 6,685 $ 6,201 $ 3,742 $ 2,283 $ 5,779 $ 970 $ 36,412 Period-end allowance allocated to: Loans individually evaluated for impairment $ 993 $ — $ 241 $ 214 $ 934 $ 202 $ — $ 2,584 Loans collectively evaluated for impairment 9,406 6,657 5,907 3,527 1,348 5,577 970 33,392 Acquired loans evaluated for impairment 353 28 53 1 1 — — 436 Ending balance $ 10,752 $ 6,685 $ 6,201 $ 3,742 $ 2,283 $ 5,779 $ 970 $ 36,412 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 5,775 $ 1,170 $ 6,805 $ 1,419 $ 14,613 $ 7,749 $ — $ 37,531 (2) Loans collectively evaluated for impairment 900,660 770,246 836,556 190,925 169,566 327,524 — 3,195,477 Acquired nonimpaired loans 28,998 37,937 25,555 8,223 15,137 5,930 — 121,780 Acquired impaired loans 2,627 2,195 5,400 2,594 380 7 — 13,203 Ending balance $ 938,060 $ 811,548 $ 874,316 $ 203,161 $ 199,696 $ 341,210 $ — $ 3,367,991 (3) The following table provides the activity of the allowance for loan losses and loan balances for the three and nine months ended September 30, 2014: (In Thousands) Commercial Owner Occupied Commercial Mortgages Construction Residential Consumer Complexity (1) Total Three months ended September 30, 2014 Allowance for loan losses Beginning balance $ 13,346 $ 7,986 $ 7,617 $ 2,319 $ 2,759 $ 6,299 $ 1,055 $ 41,381 Charge-offs (1,840 ) (272 ) (101 ) — (147 ) (372 ) — (2,732 ) Recoveries 66 77 4 8 86 261 — 502 Provision (credit) 1,833 454 (1,097 ) (897 ) (6 ) 56 (10 ) 333 Ending balance $ 13,405 $ 8,245 $ 6,423 $ 1,430 $ 2,692 $ 6,244 $ 1,045 $ 39,484 Nine months ended September 30, 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 (3,335 ) (593 ) (261 ) (88 ) (674 ) (2,095 ) — (7,046 ) Recoveries 873 244 43 192 129 792 — 2,273 Provision (credit) 3,116 956 (291 ) (2,000 ) 159 1,053 20 3,013 Ending balance $ 13,405 $ 8,245 $ 6,423 $ 1,430 $ 2,692 $ 6,244 $ 1,045 $ 39,484 Period-end allowance allocated to: Loans individually evaluated for impairment $ 1,573 $ 993 $ 240 $ — $ 850 $ 211 $ — $ 3,867 Loans collectively evaluated for impairment 11,832 7,252 6,183 1,430 1,842 6,033 1,045 35,617 Ending balance $ 13,405 $ 8,245 $ 6,423 $ 1,430 $ 2,692 $ 6,244 $ 1,045 $ 39,484 Period-end loan balances evaluated for: Loans individually evaluated for impairment $ 3,683 $ 3,390 $ 8,760 $ 1,419 $ 16,807 $ 6,610 $ — $ 40,669 (2) Loans collectively evaluated for impairment 839,753 760,680 737,394 131,996 193,792 309,478 — 2,973,093 Acquired nonimpaired loans 35,300 41,858 41,071 10,666 18,105 9,671 — 156,671 Acquired impaired loans 3,534 2,329 6,687 4,135 517 27 — 17,229 Ending balance $ 882,270 $ 808,257 $ 793,912 $ 148,216 $ 229,221 $ 325,786 $ — $ 3,187,662 (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 of $13.6 million and $11.8 million for the periods ending September 30, 2015 and 2014, respectively. Accruing troubled debt restructured loans are considered impaired loans. (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: September 30, 2015 (In Thousands) 30–59 Days 60–89 Days Past Due and Still Accruing Greater Than 90 Days Past Due and Total Past Due And Still Accruing Current Acquired Impaired Loans Nonaccrual Loans Total Loans Commercial $ 587 $ — $ — $ 587 $ 929,432 $ 2,627 $ 5,414 $ 938,060 Owner-Occupied commercial 1,300 — — 1,300 806,883 2,195 1,170 811,548 Commercial mortgages — — — — 862,196 5,400 6,720 874,316 Construction — — — — 200,567 2,594 — 203,161 Residential 4,436 1,081 423 5,940 186,788 380 6,588 199,696 Consumer 1,034 245 495 1,774 335,405 7 4,024 341,210 Total (1) $ 7,357 $ 1,326 $ 918 $ 9,601 $ 3,321,271 $ 13,203 $ 23,916 $ 3,367,991 % of Total Loans 0.22 % 0.04 % 0.03 % 0.29 % 98.61 % 0.39 % 0.71 % 100 % (1) The balances of above include $121.8 million of acquired nonimpaired loans. December 31, 2014 (In Thousands) 30–59 Days 60–89 Days Greater Than Total Past Accruing Acquired Nonaccrual Total 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 % (1) The balances of above include $145.8 million of acquired nonimpaired loans
Analysis of Impaired Loans	The following tables provide an analysis of our impaired loans at September 30, 2015 and December 31, 2014: September 30, 2015 (In Thousands) Ending Loan Balances Loans with (1) Loans with Related Contractual Principal Balances Average Loan Balances Commercial $ 6,138 $ 3,783 $ 2,355 $ 1,346 $ 12,836 $ 8,900 Owner-occupied commercial 2,090 1,170 920 28 2,468 2,364 Commercial mortgages 7,896 3,524 4,372 294 11,269 8,361 Construction 1,492 — 1,492 215 1,520 1,448 Residential 14,711 8,185 6,526 935 17,187 15,483 Consumer 7,749 6,575 1,174 202 9,290 6,590 Total (2) $ 40,076 $ 23,237 $ 16,839 $ 3,020 $ 54,570 $ 43,146 December 31, 2014 (In Thousands) Ending Loans with (1) Loans 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 $2.5 million in the ending loan balance and $3.3 million in the contractual principal balance.
Schedule of Commercial Credit Exposure	The tables below provide information about the credit quality of loans in our commercial and residential and consumer portfolios. Commercial Credit Exposure (In Thousands) Commercial Owner-Occupied Commercial Construction Total Commercial (1) September 30, Dec. 31, Sept. 30, Dec. 31 Sept. 30, Dec. 31 Sept. 30, Dec. 31 Sept. 30, Dec. 31 2015 2014 2015 2014 2015 2014 2015 2014 2015 2014 Amount % Amount % Risk Rating: Special mention $ 13,759 $ 4,744 $ 16,048 $ 6,989 $ 10,239 $ 9,065 $ — $ — $ 40,046 $ 20,798 Substandard: Accrual 36,048 42,377 14,348 14,436 1,252 9,167 8,194 1,085 59,842 67,065 Nonaccrual 4,426 1,225 1,170 1,865 6,479 7,927 — 12,075 11,017 Doubtful 988 3,034 — 609 241 319 — 334 1,229 4,296 Total Special and Substandard 55,221 51,380 31,566 23,899 18,211 26,478 8,194 1,419 113,192 4 % 103,176 4 % Acquired impaired 2,627 3,269 2,195 2,264 5,400 5,976 2,594 3,863 12,816 0 15,372 — Pass 880,212 865,423 777,787 762,435 850,705 773,005 192,373 137,215 2,701,077 96 2,538,078 96 Total $ 938,060 $ 920,072 $ 811,548 $ 788,598 $ 874,316 $ 805,459 $ 203,161 $ 142,497 $ 2,827,085 100 % $ 2,656,626 100 % (1) Table includes $100.7 million and $119.8 million of acquired nonimpaired loans as of September 30, 2015 and December 31, 2014, respectively.
Schedule of Residential and Consumer Credit Exposure	Residential and Consumer Credit Exposure (In Thousands) Residential Consumer Total Residential and Consumer (2) Sept. 30, Dec. 31 Sept. 30, Dec. 31 30-Sep-15 Dec. 31, 2014 2015 2014 2015 2014 Amount Percent Amount Percent Nonperforming (1) $ 14,613 $ 15,666 $ 7,749 $ 6,376 $ 22,362 4 % $ 22,042 4 % Acquired impaired loans 380 512 7 9 387 — 521 — Performing 184,703 202,151 333,454 321,158 518,157 96 523,309 96 Total $ 199,696 $ 218,329 $ 341,210 $ 327,543 $ 540,906 100 % $ 545,872 100 % (1) Includes $11.8 million as of September 30, 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 $21.1 million and $26.0 million in acquired nonimpaired loans as of September 30, 2015 and December 31, 2014, respectively.
Schedule of Loans Identified as Troubled Debt Restructurings During Periods Indicated	The following table presents loans identified as TDRs during the three and nine months ended September 30, 2015 and 2014. (In Thousands) Three Months Ended September 30, 2015 Three Nine Months Ended September 30, 2015 Nine Commercial $ — $ 88 $ — $ 209 Owner Occupied Commercial — — 577 — Commercial mortgages — 3,430 — 3,430 Construction — 1,419 — 1,419 Residential 38 72 447 1,916 Consumer 643 1,097 1,306 1,612 Total $ 681 $ 6,106 $ 2,330 $ 8,586

Reverse Mortgage Loans (Tables)

Reverse Mortgage Loans (Tables)	9 Months Ended
	Sep. 30, 2015
Mortgage Banking [Abstract]
Summary of Estimated Cash Payments to Reverse Mortgagors	As of September 30, 2015, the Company’s actuarially estimated cash payments to reverse mortgagors are as follows: (In Thousands) Year Ending Remaining in 2015 $ 152 2016 538 2017 429 2018 338 2019 264 Years 2020 - 2024 624 Years 2025 - 2029 131 Years 2030 - 2034 21 Thereafter 2 Total (1) $ 2,499 (1) This table does not take into consideration cash inflow including payments from mortgagors or payoffs based on contractual terms.

Goodwill and Intangibles (Table

Goodwill and Intangibles (Tables)	9 Months Ended
	Sep. 30, 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: Trust & WSFS Cash Wealth Consolidated (In Thousands) Bank Connect Management Company December 31, 2014 $ 43,517 $ — $ 5,134 $ 48,651 Changes in goodwill 136 — — 136 September 30, 2015 $ 43,653 $ — $ 5,134 $ 48,787
Summary of Intangible Assets	The following table summarizes intangible assets: Gross Net (In Thousands) Intangible Accumulated Intangible September 30, 2015 Assets Amortization Assets Core deposits $ 7,610 $ (4,170 ) $ 3,440 CB&T intangibles 3,142 (1,133 ) 2,009 Array and Arrow intangibles 2,353 (759 ) 1,594 Mortgage servicing rights 1,422 (913 ) 509 Total intangible assets $ 14,527 $ (6,975 ) $ 7,552 December 31, 2014 Core deposits $ 7,610 $ (3,321 ) $ 4,289 CB&T intangibles 3,142 (985 ) 2,157 Array and Arrow intangibles 2,353 (497 ) 1,856 Mortgage servicing rights 1,455 (815 ) 640 Total intangible assets $ 14,560 $ (5,618 ) $ 8,942
Schedule of Estimated Amortization Expense of Intangibles	The following presents the estimated amortization expense of intangibles: Amortization (In Thousands) of Intangibles Remaining in 2015 $ 430 2016 1,434 2017 1,217 2018 1,137 2019 962 Thereafter 2,372 Total $ 7,552

Associate Benefit Plans (Tables

Associate Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Periodic Benefit Cost Components of Postretirement Benefits	The following are disclosures of the net periodic benefit cost components of postretirement benefits measured at January 1, 2015 and 2014. Three months ended Nine months ended (In Thousands) 2015 2014 2015 2014 Service cost $ 15 $ 49 $ 44 $ 147 Interest cost 22 48 66 146 Prior service cost amortization (19 ) (14 ) (57 ) (44 ) Net (gain) loss recognition (5 ) 22 (15 ) 66 Net periodic benefit cost $ 13 $ 105 $ 38 $ 315

Fair Value Disclosures of Fin33

Fair Value Disclosures of Financial Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Balances of Assets Measured at Fair Value	A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy as of September 30, 2015 is set forth in the following table: (In Thousands) Quoted Significant Significant Total Fair Description (Level 1) (Level 2) (Level 3) Value Assets measured at fair value on a recurring basis Collateralized mortgage obligations $ — $ 253,667 $ — $ 253,667 FNMA — 299,772 — 299,772 FHLMC — 110,474 — 110,474 GNMA — 61,711 — 61,711 U.S. Government and agencies — 31,107 — 31,107 Total assets measured at fair value on a recurring basis $ — $ 756,731 $ — $ 756,731 Assets measured at fair value on a nonrecurring basis Other real estate owned $ — $ — $ 3,299 $ 3,299 Loans held-for-sale — 33,979 — 33,979 Impaired loans (collateral dependent) — — 37,056 37,056 Total assets measured at fair value on a nonrecurring basis $ — $ 33,979 $ 40,355 $ 74,334 There were no material liabilities measured at fair value as of September 30, 2015. The table below presents the balances of assets measured at fair value as of December 31, 2014: (In Thousands) Quoted Significant Significant Total Description (Level 1) (Level 2) (Level 3) Fair Value Assets measured at fair value on a recurring basis Available-for-sale securities: Collateralized mortgage obligations $ — $ 192,932 $ — $ 192,932 FNMA — 292,553 — 292,553 FHLMC — 146,882 — 146,882 GNMA — 77,797 — 77,797 U.S. Government and agencies 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 September 30, 2015 December 31, 2014 Measurement Book Value Fair Value Book Value Fair Value Financial assets: Cash and cash equivalents Level 1 $ 529,037 529,037 $ 508,039 $ 508,039 Investment securities available-for-sale See previous 756,731 756,731 740,124 740,124 Investment securities held-to-maturity Level 2 138,060 138,138 126,168 126,171 Loans, held-for-sale See previous 33,979 33,979 28,508 28,508 Loans, net Level 2 3,324,020 3,281,986 3,156,652 3,121,855 Reverse mortgage loans Level 3 24,476 24,476 29,298 29,298 Stock in FHLB of Pittsburgh Level 2 27,943 27,943 23,278 23,278 Accrued interest receivable Level 2 11,770 11,770 11,782 11,782 Other assets Level 3 — 5,837 — 4,837 Financial liabilities: Deposits Level 2 3,644,602 3,464,311 3,649,235 3,461,218 Borrowed funds Level 2 868,379 871,082 667,775 672,850 Standby letters of credit Level 3 191 191 151 151 Accrued interest payable Level 2 1,760 1,760 1,004 1,004

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Details of Segment Information	For the three months ended September 30, 2015: (In Thousands) WSFS Bank Cash Wealth Total Statement of Operations External customer revenues: Interest income $ 42,873 $ — $ 1,984 $ 44,857 Noninterest income 8,944 7,138 5,583 21,665 Total external customer revenues 51,817 7,138 7,567 66,522 Inter-segment revenues: Interest income 879 — 1,697 2,576 Noninterest income 2,028 219 26 2,273 Total inter-segment revenues 2,907 219 1,723 4,849 Total revenue 54,724 7,357 9,290 71,371 External customer expenses: Interest expense 3,688 — 172 3,860 Noninterest expenses 30,066 4,255 4,384 38,705 Provision for loan losses 1,345 — 108 1,453 Total external customer expenses 35,099 4,255 4,664 44,018 Inter-segment expenses: Interest expense 1,697 394 485 2,576 Noninterest expenses 245 624 1,404 2,273 Total inter-segment expenses 1,942 1,018 1,889 4,849 Total expenses 37,041 5,273 6,553 48,867 Income before taxes $ 17,683 $ 2,084 $ 2,737 $ 22,504 Income tax provision 8,078 Consolidated net income $ 14,426 Capital expenditures $ 3,487 $ 1,466 $ 16 $ 4,969 As of September 30, 2015: Statement of Condition Cash and cash equivalents $ 78,209 $ 448,594 $ 2,234 $ 529,037 Goodwill 43,653 — 5,134 48,787 Other segment assets 4,305,469 — 184,649 4,490,118 Total segment assets $ 4,427,331 $ 448,594 $ 192,017 $ 5,067,942 For the three months ended September 30, 2014: (In Thousands) WSFS Bank Cash Wealth Total Statement of Operations External customer revenues: Interest income $ 38,777 $ — $ 2,022 $ 40,799 Noninterest income 9,161 6,640 4,503 20,304 Total external customer revenues 47,938 6,640 6,525 61,103 Inter-segment revenues: Interest income 880 — 1,361 2,241 Noninterest income 1,602 204 32 1,838 Total inter-segment revenues 2,482 204 1,393 4,079 Total revenue 50,420 6,844 7,918 65,182 External customer expenses: Interest expense 3,952 — 100 4,052 Noninterest expenses 32,033 3,993 3,137 39,163 Provision for loan losses 198 — 135 333 Total external customer expenses 36,183 3,993 3,372 43,548 Inter-segment expenses Interest expense 1,361 360 520 2,241 Noninterest expenses 236 509 1,093 1,838 Total inter-segment expenses 1,597 869 1,613 4,079 Total expenses 37,780 4,862 4,985 47,627 Income before taxes $ 12,640 $ 1,982 $ 2,933 $ 17,555 Income tax provision 6,142 Consolidated net income 11,413 Capital expenditures $ 914 $ 67 $ — $ 981 As of December 31, 2014: Statement of Condition 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 $ 4,224,124 $ 433,533 $ 195,663 $ 4,853,320 For the nine months ended September 30, 2015: (In Thousands) WSFS Bank Cash Wealth Total Statement of Operations External customer revenues: Interest income $ 124,739 $ — $ 6,024 $ 130,763 Noninterest income 27,615 20,845 16,758 65,218 Total external customer revenues 152,354 20,845 22,782 195,981 Inter-segment revenues: Interest income 2,626 — 4,782 7,408 Noninterest income 5,810 601 73 6,484 Total inter-segment revenues 8,436 601 4,855 13,892 Total revenue 160,790 21,446 27,637 209,873 External customer expenses: Interest expense 11,422 — 437 11,859 Noninterest expenses 91,066 12,780 12,426 116,272 Provision for loan losses 5,688 — 324 6,012 Total external customer expenses 108,176 12,780 13,187 134,143 Inter-segment expenses: Interest expense 4,782 1,156 1,470 7,408 Noninterest expenses 674 1,882 3,928 6,484 Total inter-segment expenses 5,456 3,038 5,398 13,892 Total expenses 113,632 15,818 18,585 148,035 Income before taxes $ 47,158 $ 5,628 $ 9,052 $ 61,838 Income tax provision 22,289 Consolidated net income $ 39,549 Capital expenditures $ 4,603 $ 4,036 $ 29 $ 8,668 As of September 30, 2015: Statement of Condition Cash and cash equivalents $ 78,209 $ 448,594 $ 2,234 $ 529,037 Goodwill 43,653 — 5,134 48,787 Other segment assets 4,305,469 — 184,649 4,490,118 Total segment assets $ 4,427,331 $ 448,594 $ 192,017 $ 5,067,942 For the nine months ended September 30, 2014: (In Thousands) WSFS Bank Cash Connect Wealth Total Statement of Operations External customer revenues: Interest income $ 112,178 $ — $ 5,819 $ 117,997 Noninterest income 26,334 18,974 12,983 58,291 Total external customer revenues 138,512 18,974 18,802 176,288 Inter-segment revenues: Interest income 2,545 — 4,124 6,669 Noninterest income 5,041 601 85 5,727 Total inter-segment revenues 7,586 601 4,209 12,396 Total revenue 146,098 19,575 23,011 188,684 External customer expenses: Interest expense 11,413 — 316 11,729 Noninterest expenses 87,668 11,425 9,179 108,272 Provision for loan losses 2,320 — 693 3,013 Total external customer expenses 101,401 11,425 10,188 123,014 Inter-segment expenses: Interest expense 4,124 1,019 1,526 6,669 Noninterest expenses 686 1,688 3,353 5,727 Total inter-segment expenses 4,810 2,707 4,879 12,396 Total expenses 106,211 14,132 15,067 135,410 Income before taxes $ 39,887 $ 5,443 $ 7,944 $ 53,274 Income tax provision 12,225 Consolidated net income $ 41,049 Capital expenditures $ 2,207 $ 156 $ 3 $ 2,366 As of December 31, 2014: Statement of Condition 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 $ 4,224,124 $ 433,533 $ 195,663 $ 4,853,320

Change in Accumulated Other C35

Change in Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Components of Accumulated Other Comprehensive Income	Changes to accumulated other comprehensive income by component are shown net of taxes in the following tables for the three and nine months periods indicated: (In Thousands) Net change in Net change in securities held-to- Net change in Total Balance, June 30, 2015 $ 620 $ (208 ) $ 817 $ 1,229 Other comprehensive income (loss) before reclassifications 6,178 — (15 ) 6,163 Less: Amounts reclassified from accumulated other comprehensive income (47 ) — — (47 ) Amortization of unrealized gain on securities reclassified to held-to-maturity — (104 ) — (104 ) Net current-period other comprehensive income (loss) 6,131 (104 ) (15 ) 6,012 Balance, September 30, 2015 $ 6,751 $ (312 ) $ 802 $ 7,241 Balance, June 30, 2014 $ (2,583 ) $ — $ (412 ) $ (2,995 ) Other comprehensive (loss) income before reclassifications (778 ) — 5 (773 ) Less: Amounts reclassified from accumulated other comprehensive loss (23 ) — — (23 ) Net current-period other comprehensive (loss) income (801 ) — 5 (796 ) Balance, September 30, 2014 $ (3,384 ) $ — $ (407 ) $ (3,791 ) (In Thousands) Net change in Net change in securities held-to- Net change in Total Balance, December 31, 2014 $ 2,653 $ — $ 847 $ 3,500 Other comprehensive income (loss) before reclassifications 4,721 — (45 ) 4,676 Less: Amounts reclassified from accumulated other comprehensive income (623 ) — — (623 ) Amortization of unrealized gain on securities reclassified to held-to-maturity — (312 ) — (312 ) Net current-period other comprehensive income (loss) 4,098 (312 ) (45 ) 3,741 Balance, September 30, 2015 $ 6,751 $ (312 ) $ 802 $ 7,241 Balance, December 31, 2013 (20,822 ) — $ (472 ) $ (21,294 ) Other comprehensive income (loss) before reclassifications 18,046 — 65 18,111 Less: Amounts reclassified from accumulated other comprehensive loss (608 ) — — (608 ) Net current-period other comprehensive income 17,438 — 65 17,503 Balance, September 30, 2014 $ (3,384 ) $ — $ (407 ) $ (3,791 )
Components of Other Comprehensive Income	The statements of operations impacted by components of other comprehensive income are presented in the table below: (In Thousands) Three Months Ended Affected line item in Statements of 2015 2014 Securities available-for-sale: Realized gains on securities transactions $ (76 ) $ (36 ) Security gains, net Income taxes 29 13 Income tax provision Net of tax $ (47 ) $ (23 ) 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 $ (159 ) $ — Interest income on investment securities Income taxes 55 — Income tax provision Net of tax $ (104 ) $ — Amortization of Defined Benefit Pension items: Prior service (credits) costs $ (19 ) $ 22 Actuarial (gains) losses (5 ) (14 ) Total before tax $ (24 ) $ 8 Salaries, benefits and other compensation Income taxes 9 (3 ) Income tax provision Net of tax (15 ) 5 Total reclassifications $ (166 ) $ (18 ) Nine Months Ended Affected line item in Statements of 2015 2014 Securities available-for-sale: Realized gains on securities transactions $ (1,004 ) $ (979 ) Security gains, net Income taxes 381 371 Income tax provision Net of tax $ (623 ) $ (608 ) 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 $ (487 ) $ — Interest income on investment securities Income taxes 175 — Income tax provision Net of tax $ (312 ) $ — Amortization of Defined Benefit Pension items: Prior service (credits) costs $ (57 ) $ 905 Transition obligation — 245 Actuarial (gains) losses (15 ) (1,046 ) Total before tax $ (72 ) $ 104 Salaries, benefits and other compensation Income taxes 27 (39 ) Income tax provision Net of tax $ (45 ) $ 65 Total reclassifications $ (980 ) $ (543 )

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail)	May. 18, 2015$ / shares	Sep. 30, 2015OfficeSubsidiary$ / sharesshares	Mar. 31, 2015$ / sharesshares	Dec. 31, 2014$ / sharesshares
Basis Of Presentation [Line Items]
Number of unconsolidated affiliate		1
Number of banking offices		55
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		On May 18, 2015, the Company affected a three-for-one stock split in the form of a stock dividend to shareholders of record as of May 4, 2015.
Stock split conversion ratio	3
Stock dividend record date		May 4, 2015
Scenario, Previously Reported [Member]
Basis Of Presentation [Line Items]
Common stock, shares authorized | shares			20,000,000
Common stock, par value | $ / shares			$ 0.01
Delaware [Member]
Basis Of Presentation [Line Items]
Number of banking offices		44
Pennsylvania [Member]
Basis Of Presentation [Line Items]
Number of banking offices		9
Virginia [Member]
Basis Of Presentation [Line Items]
Number of banking offices		1
Nevada [Member]
Basis Of Presentation [Line Items]
Number of banking offices		1
WSFS Financial Corporation [Member]
Basis Of Presentation [Line Items]
Number of wholly-owned subsidiaries | Subsidiary		3

Business Combinations - Additio

Business Combinations - Additional Information (Detail)	May. 18, 2015	Sep. 05, 2014USD ($)$ / sharesshares	Nov. 25, 2013USD ($)shares	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Business Acquisition [Line Items]
Stock split conversion ratio	3
Goodwill resulting from acquisition of FNBW				$ 48,787,000		$ 48,787,000		$ 48,651,000
First Wyoming Financial Corporation [Member]
Business Acquisition [Line Items]
Cash paid to FNBW stockholders		$ 32,028,000	$ 32,000,000
Common stock shares issued | shares		1,357,983	1,357,983
Stock split conversion ratio			3
Transaction value, cash and stock		$ 64,936,000
Goodwill resulting from acquisition of FNBW		16,506,000		16,506,000		16,506,000		$ 16,370,000
First Wyoming Financial Corporation [Member] | Acquisition Related Costs [Member]
Business Acquisition [Line Items]
Merger expenses				$ 12,000	$ 2,500,000	$ 109,000	$ 2,900,000
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

Business Combinations - Summary

Business Combinations - Summary of Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Sep. 05, 2014	Nov. 25, 2013	Sep. 30, 2015	Dec. 31, 2014
Liabilities assumed:
Goodwill resulting from acquisition of FNBW			$ 48,787	$ 48,651
First Wyoming Financial Corporation [Member]
Consideration Paid:
Common shares issued (1,357,983)	$ 32,908
Cash paid to FNBW 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
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		$ 16,506	$ 16,370

Business Combinations - Summa39

Business Combinations - Summary of Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed (Parenthetical) (Detail) - shares	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

Business Combinations - Schedul

Business Combinations - Schedule of Changes to Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)
Business Acquisition [Line Items]
Goodwill, Beginning balance	$ 48,651
Goodwill, Ending balance	48,787
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

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator:
Net Income	$ 14,426	$ 11,413	$ 39,549	$ 41,049
Denominator:
Weighted average basic shares	27,721	27,182	28,035	26,882
Dilutive potential common shares	511	744	468	710
Weighted average fully diluted shares	28,232	27,926	28,503	27,592
Earnings per share:
Basic	$ 0.52	$ 0.42	$ 1.41	$ 1.53
Diluted	$ 0.51	$ 0.41	$ 1.39	$ 1.49
Outstanding common stock equivalents having no dilutive effect	83	131	184	131

Investment Securities - Additio

Investment Securities - Additional Information (Detail) - USD ($)	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Trading securities	$ 0
Securities pledged as collateral	435,000,000		$ 470,400,000
Proceeds from sale of investment securities	117,300,000	$ 170,400,000
Gains from sale of investment securities	1,000,000	979,000
Losses from sale of investment securities	1,000	$ 0
Unamortized premiums	19,600,000		22,400,000
Unaccreted discounts	234,000		188,000
Held-to-maturity securities, unrealized loss			0
Owned investment securities	194,925,000		330,754,000
Total unrealized losses on securities	$ 1,809,000		3,594,000
Weighted average duration of MBS portfolio	4 years 3 months 18 days
Mortgage-Backed Securities ("MBS") [Member]
Schedule of Available-for-sale Securities [Line Items]
OTTI on evaluation of securities	$ 0		$ 0

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	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 749,403	$ 739,404
Gross Unrealized Gain	8,545	4,314
Gross Unrealized Loss	1,217	3,594
Fair Value	756,731	740,124
Held-to-maturity Securities, Amortized Cost	138,060	126,168
Held-to-maturity Securities, Fair Value	138,138	126,171
Collateralized Mortgage Obligation (CMO) [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	251,729	193,672
Gross Unrealized Gain	2,538	874
Gross Unrealized Loss	600	1,614
Fair Value	253,667	192,932
Federal National Mortgage Association (FNMA) [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	296,373	291,606
Gross Unrealized Gain	3,838	2,053
Gross Unrealized Loss	439	1,106
Fair Value	299,772	292,553
Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	109,327	146,742
Gross Unrealized Gain	1,271	672
Gross Unrealized Loss	124	532
Fair Value	110,474	146,882
Government National Mortgage Association (GNMA) [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	60,930	77,364
Gross Unrealized Gain	834	701
Gross Unrealized Loss	53	268
Fair Value	61,711	77,797
U.S. Government and Government Sponsored Enterprises (GSE) [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	31,044	30,020
Gross Unrealized Gain	64	14
Gross Unrealized Loss	1	74
Fair Value	31,107	29,960
State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	138,060	126,168
Held-to-maturity Securities, Gross Unrealized Gain	670	3
Held-to-maturity Securities, Gross Unrealized Loss	592
Held-to-maturity Securities, Fair Value	$ 138,138	$ 126,171

Investment Securities - Sched44

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	Sep. 30, 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	$ 3.1	$ 3.6

Investment Securities - Sched45

Investment Securities - Schedule of Maturities of Investment Securities Available-for-Sale and Held-to-Maturity (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	$ 749,403	$ 739,404
Fair Value	756,731	740,124
Held-to-maturity Securities, Amortized Cost	138,060	126,168
Held-to-maturity Securities, Fair Value	138,138	126,171
Within One Year [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	3,995	10,000
Fair Value	4,000	10,014
Held-to-maturity Securities, Amortized Cost	1,712	3,608
Held-to-maturity Securities, Fair Value	1,714	3,608
After One Year But Within Five Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	30,032	20,020
Fair Value	30,112	19,946
Held-to-maturity Securities, Amortized Cost	3,925	6,217
Held-to-maturity Securities, Fair Value	3,913	6,217
After Five Years But Within Ten Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	192,473	134,453
Fair Value	194,009	133,395
Held-to-maturity Securities, Amortized Cost	7,964	9,733
Held-to-maturity Securities, Fair Value	8,053	9,736
After Ten Years [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	522,903	574,931
Fair Value	528,610	576,769
Held-to-maturity Securities, Amortized Cost	124,459	106,610
Held-to-maturity Securities, Fair Value	$ 124,458	$ 106,610

Investment Securities - Sched46

Investment Securities - Schedule of Investment Securities' Gross Unrealized Losses and Fair Value by Investment Category (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	$ 160,627	$ 59,338
Available-for-sale securities, Less than 12 months, Unrealized Loss	1,254	236
Available-for-sale securities, 12 months or longer, Fair Value	34,298	271,416
Available-for-sale securities, 12 months or longer, Unrealized Loss	555	3,358
Available-for-sale securities, Total, Fair Value	194,925	330,754
Available-for-sale securities, Total, Unrealized Loss	1,809	3,594
Collateralized Mortgage Obligation (CMO) [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	27,739	15,492
Available-for-sale securities, Less than 12 months, Unrealized Loss	218	108
Available-for-sale securities, 12 months or longer, Fair Value	27,740	61,630
Available-for-sale securities, 12 months or longer, Unrealized Loss	382	1,506
Available-for-sale securities, Total, Fair Value	55,479	77,122
Available-for-sale securities, Total, Unrealized Loss	600	1,614
Federal National Mortgage Association (FNMA) [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	53,423
Available-for-sale securities, Less than 12 months, Unrealized Loss	439
Available-for-sale securities, 12 months or longer, Fair Value		103,207
Available-for-sale securities, 12 months or longer, Unrealized Loss		1,106
Available-for-sale securities, Total, Fair Value	53,423	103,207
Available-for-sale securities, Total, Unrealized Loss	439	1,106
Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	4,814	23,901
Available-for-sale securities, Less than 12 months, Unrealized Loss	3	54
Available-for-sale securities, 12 months or longer, Fair Value	4,149	58,267
Available-for-sale securities, 12 months or longer, Unrealized Loss	121	478
Available-for-sale securities, Total, Fair Value	8,963	82,168
Available-for-sale securities, Total, Unrealized Loss	124	532
Government National Mortgage Association (GNMA) [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	1,943
Available-for-sale securities, Less than 12 months, Unrealized Loss	1
Available-for-sale securities, 12 months or longer, Fair Value	2,409	48,312
Available-for-sale securities, 12 months or longer, Unrealized Loss	52	268
Available-for-sale securities, Total, Fair Value	4,352	48,312
Available-for-sale securities, Total, Unrealized Loss	53	268
U.S. Government and Government Sponsored Enterprises (GSE) [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	3,013	19,945
Available-for-sale securities, Less than 12 months, Unrealized Loss	1	74
Available-for-sale securities, Total, Fair Value	3,013	19,945
Available-for-sale securities, Total, Unrealized Loss	1	$ 74
State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Less than 12 months, Fair Value	69,695
Available-for-sale securities, Less than 12 months, Unrealized Loss	592
Available-for-sale securities, Total, Fair Value	69,695
Available-for-sale securities, Total, Unrealized Loss	$ 592

Loans - Summary of Loan Portfol

Loans - Summary of Loan Portfolio by Category (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 3,367,991		$ 3,202,498
Deferred fees, net	7,559		6,420
Allowance for loan losses	36,412	$ 40,845	39,426	$ 39,484	$ 41,381	$ 41,244
Net loans	3,324,020		3,156,652
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	938,060		920,072
Owner Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	811,548		788,598	808,257
Allowance for loan losses	6,685	6,733	6,643	8,245	7,986	7,638
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	341,210		327,543	325,786
Allowance for loan losses	5,779	$ 5,788	6,041	$ 6,244	$ 6,299	$ 6,494
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	203,161		142,497
Commercial Mortgage [Member] | Real Estate Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	874,316		805,459
Residential (1-4 Family) [Member] | Real Estate Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 199,696		$ 218,329

Loans - Schedule of Loans Acqui

Loans - Schedule of Loans Acquired Through Merger in Accordance with FASB ASC 310-30 (Detail) - USD ($) $ in Thousands	Sep. 30, 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	$ 3,300
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

Loans - Schedule of Outstanding

Loans - Schedule of Outstanding Principal Balance and Carrying Amounts for Acquired Credit-Impaired Loans (Detail) $ in Thousands	Sep. 30, 2015USD ($)
Receivables [Abstract]
Outstanding principal balance	$ 18,546
Carrying amount	12,767
Allowance for loan losses	$ 436

Loans - Summary of Changes in A

Loans - Summary of Changes in Accretable Yield on Acquired Credit Impaired Loans (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)
Receivables [Abstract]
Balance at beginning of period	$ 1,498
Accretion	(822)
Reclassification from nonaccretable difference	1,827
Additions/adjustments	(363)
Balance at the end of the period	$ 2,140

Allowance for Loan Losses and51

Allowance for Loan Losses and Credit Quality Information - Additional Information (Detail)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)SecurityLoan	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)SecurityLoan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net charge-offs				$ 9,000,000	$ 4,700,000
Percentage of average loans annualized, charged-offs				0.27%	0.21%
Troubled debt restructurings charged off	$ 69,000		$ 49,000	$ 69,000	$ 49,000
Interest income on impaired loans	372,000		$ 401,000	1,300,000	1,100,000
Balance of troubled debt restructurings	32,500,000			32,500,000		$ 36,200,000
TDRs in nonaccrual status				18,900,000		13,600,000
TDRs in accrual status				13,600,000		22,600,000
Troubled debt restructuring related reserves	2,300,000			$ 2,300,000		$ 4,200,000
Number of term loans modified in troubled debt restructurings | SecurityLoan				23
Usual sustained repayment performance period				6 months
Increase in allowance for loan losses				$ 23,000	$ 395,000
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
Total Residential and Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impairment loans, charge off period				90 days
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of increase (decrease) on total allowance				$ 1,300,000
Number of commercial loans | SecurityLoan				36		12
Total loans outstanding,commercial loans	$ 2,200,000			$ 2,200,000		$ 1,100,000
Number of term loans modified in troubled debt restructurings | SecurityLoan				1
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 19 quarter look-back period.
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of residential loans in the process of foreclosure | SecurityLoan				37		13
Total loans outstanding, residential loans				$ 4,300,000		$ 4,400,000
Number of term loans modified in troubled debt restructurings | SecurityLoan				6
Number of term loans modified in troubled debt restructurings, extended maturity | SecurityLoan				1
Number of term loans modified in troubled debt restructurings, discharged bankruptcies | SecurityLoan				3
Number of term loans modified in troubled debt restructurings of forbearance agreements | SecurityLoan				2
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of term loans modified in troubled debt restructurings | SecurityLoan				16
Number of term loans modified in troubled debt restructurings, extended maturity | SecurityLoan				7
Number of term loans modified in troubled debt restructurings, discharged bankruptcies | SecurityLoan				6
Number of term loans modified in troubled debt restructurings, rate concession | SecurityLoan				2
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period for impairment loans				90 days
Basis points	0.03%			0.03%

Allowance for Loan Losses and52

Allowance for Loan Losses and Credit Quality Information - Schedule of Allowance for Loan Losses and Loan Balances (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 40,845	$ 41,381	$ 39,426	$ 41,244	$ 41,244
Charge-offs	(6,606)	(2,732)	(10,582)	(7,046)
Recoveries	720	502	1,556	2,273
Provision (credit)	1,513	333	5,374	3,013
Provision for acquired loans	(60)		638
Ending balance	36,412	39,484	36,412	39,484	39,426
Loans individually evaluated for impairment	2,584	3,867	2,584	3,867
Loans collectively evaluated for impairment	33,392	35,617	33,392	35,617
Acquired loans evaluated for impairment			436
Ending balance	36,412	39,484	36,412	39,484
Loans individually evaluated for impairment	37,531	40,669	37,531	40,669
Loans collectively evaluated for impairment	3,195,477	2,973,093	3,195,477	2,973,093
Acquired nonimpaired loans	121,780	156,671	121,780	156,671	145,800
Acquired impaired loans			13,203	17,229	15,893
Ending balance	3,367,991		3,367,991		3,202,498
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	14,512	13,346	12,837	12,751	12,751
Charge-offs	(4,147)	(1,840)	(6,184)	(3,335)
Recoveries	84	66	198	873
Provision (credit)	303	1,833	3,485	3,116
Provision for acquired loans			416
Ending balance	10,752	13,405	10,752	13,405	12,837
Loans individually evaluated for impairment	993	1,573	993	1,573
Loans collectively evaluated for impairment	9,406	11,832	9,406	11,832
Acquired loans evaluated for impairment			353
Ending balance	10,752	13,405	10,752	13,405
Loans individually evaluated for impairment	5,775	3,683	5,775	3,683
Loans collectively evaluated for impairment	900,660	839,753	900,660	839,753
Acquired nonimpaired loans	28,998	35,300	28,998	35,300
Acquired impaired loans			2,627	3,534	3,269
Ending balance	938,060	882,270	938,060	882,270	920,072
Owner Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	6,733	7,986	6,643	7,638	7,638
Charge-offs	(26)	(272)	(623)	(593)
Recoveries	40	77	62	244
Provision (credit)	(62)	454	574	956
Provision for acquired loans			29
Ending balance	6,685	8,245	6,685	8,245	6,643
Loans individually evaluated for impairment		993		993
Loans collectively evaluated for impairment	6,657	7,252	6,657	7,252
Acquired loans evaluated for impairment			28
Ending balance	6,685	8,245	6,685	8,245
Loans individually evaluated for impairment	1,170	3,390	1,170	3,390
Loans collectively evaluated for impairment	770,246	760,680	770,246	760,680
Acquired nonimpaired loans	37,937	41,858	37,937	41,858
Acquired impaired loans			2,195	2,329	2,264
Ending balance	811,548	808,257	811,548	808,257	788,598
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	6,831	7,617	7,266	6,932	6,932
Charge-offs	(804)	(101)	(808)	(261)
Recoveries	14	4	83	43
Provision (credit)	231	(1,097)	(508)	(291)
Provision for acquired loans	(71)		168
Ending balance	6,201	6,423	6,201	6,423	7,266
Loans individually evaluated for impairment	241	240	241	240
Loans collectively evaluated for impairment	5,907	6,183	5,907	6,183
Acquired loans evaluated for impairment			53
Ending balance	6,201	6,423	6,201	6,423
Loans individually evaluated for impairment	6,805	8,760	6,805	8,760
Loans collectively evaluated for impairment	836,556	737,394	836,556	737,394
Acquired nonimpaired loans	25,555	41,071	25,555	41,071
Acquired impaired loans			5,400	6,687	5,976
Ending balance	874,316	793,912	874,316	793,912	805,459
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	3,313	2,319	2,596	3,326	3,326
Charge-offs				(88)
Recoveries	19	8	179	192
Provision (credit)	306	(897)	863	(2,000)
Provision for acquired loans	104		104
Ending balance	3,742	1,430	3,742	1,430	2,596
Loans individually evaluated for impairment	214		214
Loans collectively evaluated for impairment	3,527	1,430	3,527	1,430
Acquired loans evaluated for impairment			1
Ending balance	3,742	1,430	3,742	1,430
Loans individually evaluated for impairment	1,419	1,419	1,419	1,419
Loans collectively evaluated for impairment	190,925	131,996	190,925	131,996
Acquired nonimpaired loans	8,223	10,666	8,223	10,666
Acquired impaired loans			2,594	4,135	3,863
Ending balance	203,161	148,216	203,161	148,216	142,497
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	2,709	2,759	2,523	3,078	3,078
Charge-offs	(130)	(147)	(397)	(674)
Recoveries	158	86	195	129
Provision (credit)	(362)	(6)	50	159
Provision for acquired loans	(92)		(88)
Ending balance	2,283	2,692	2,283	2,692	2,523
Loans individually evaluated for impairment	934	850	934	850
Loans collectively evaluated for impairment	1,348	1,842	1,348	1,842
Acquired loans evaluated for impairment			1
Ending balance	2,283	2,692	2,283	2,692
Loans individually evaluated for impairment	14,613	16,807	14,613	16,807
Loans collectively evaluated for impairment	169,566	193,792	169,566	193,792
Acquired nonimpaired loans	15,137	18,105	15,137	18,105
Acquired impaired loans			380	517	512
Ending balance	199,696	229,221	199,696	229,221	218,329
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	5,788	6,299	6,041	6,494	6,494
Charge-offs	(1,499)	(372)	(2,570)	(2,095)
Recoveries	405	261	839	792
Provision (credit)	1,086	56	1,460	1,053
Provision for acquired loans	(1)		9
Ending balance	5,779	6,244	5,779	6,244	6,041
Loans individually evaluated for impairment	202	211	202	211
Loans collectively evaluated for impairment	5,577	6,033	5,577	6,033
Ending balance	5,779	6,244	5,779	6,244
Loans individually evaluated for impairment	7,749	6,610	7,749	6,610
Loans collectively evaluated for impairment	327,524	309,478	327,524	309,478
Acquired nonimpaired loans	5,930	9,671	5,930	9,671
Acquired impaired loans			7	27	9
Ending balance	341,210	325,786	341,210	325,786	327,543
Estimation/Complexity Risk [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	959	1,055	1,520	1,025	1,025
Provision (credit)	11	(10)	(550)	20
Ending balance	970	1,045	970	1,045	$ 1,520
Loans collectively evaluated for impairment	970	1,045	970	1,045
Ending balance	$ 970	$ 1,045	$ 970	$ 1,045

Allowance for Loan Losses and53

Allowance for Loan Losses and Credit Quality Information - Schedule of Allowance for Loan Losses and Loan Balances (Parenthetical) (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Sep. 30, 2014
Receivables [Abstract]
Accrued troubled debt restructured loans	$ 13.6	$ 11.8

Allowance for Loan Losses and54

Allowance for Loan Losses and Credit Quality Information - Summary of Nonaccrual and Past Due Loans (Detail) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	$ 9,601		$ 7,381
Accruing Current Balances, Total	3,321,271		3,155,173
Acquired Impaired Loans ,Total	13,203	$ 17,229	15,893
Nonaccrual Loans, Total	23,916		24,051
Total Loans	$ 3,367,991		$ 3,202,498
30-59 Days Past Due and Still Accruing, % of Total Loans	0.22%		0.20%
60-89 Days Past Due and Still Accruing, % of Total Loans	0.04%		0.03%
Greater Than 90 Days Past Due and Still Accruing, % of Total Loans	0.03%		0.00%
Total Past Due And Still Accruing, % of Total Loans	0.29%		0.23%
Accruing Current Balances, % of Total Loans	98.61%		98.52%
Acquired Impaired Loans, % of Total Loans	0.39%		0.50%
Nonaccrual Loans, % of Total Loans	0.71%		0.75%
% of Total Loans	100.00%		100.00%
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	$ 7,357		$ 6,431
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	1,326		946
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	918		4
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	587		715
Accruing Current Balances, Total	929,432		913,382
Acquired Impaired Loans ,Total	2,627	3,534	3,269
Nonaccrual Loans, Total	5,414		2,706
Total Loans	938,060	882,270	920,072
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	587		715
Owner Occupied Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	1,300		393
Accruing Current Balances, Total	806,883		783,466
Acquired Impaired Loans ,Total	2,195	2,329	2,264
Nonaccrual Loans, Total	1,170		2,475
Total Loans	811,548	808,257	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	1,300		393
Commercial Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total			203
Accruing Current Balances, Total	862,196		791,035
Acquired Impaired Loans ,Total	5,400	6,687	5,976
Nonaccrual Loans, Total	6,720		8,245
Total Loans	874,316	793,912	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			203
Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing Current Balances, Total	200,567		138,634
Acquired Impaired Loans ,Total	2,594	4,135	3,863
Total Loans	203,161	148,216	142,497
Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	5,940		4,483
Accruing Current Balances, Total	186,788		206,266
Acquired Impaired Loans ,Total	380	517	512
Nonaccrual Loans, Total	6,588		7,068
Total Loans	199,696	229,221	218,329
Residential [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	4,436		3,879
Residential [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	1,081		604
Residential [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	423
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due and Still Accruing, Total	1,774		1,587
Accruing Current Balances, Total	335,405		322,390
Acquired Impaired Loans ,Total	7	27	9
Nonaccrual Loans, Total	4,024		3,557
Total Loans	341,210	$ 325,786	327,543
Consumer [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	1,034		1,241
Consumer [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	245		342
Consumer [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	$ 495		$ 4

Allowance for Loan Losses and55

Allowance for Loan Losses and Credit Quality Information - Summary of Nonaccrual and Past Due Loans (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Receivables [Abstract]
Acquired nonimpaired loans	$ 121,780	$ 145,800	$ 156,671

Allowance for Loan Losses and56

Allowance for Loan Losses and Credit Quality Information - Analysis of Impaired Loans (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	$ 40,076	$ 46,651
Loans with No Related Reserve	23,237	17,802
Loans with Related Reserve	16,839	28,849
Related Reserve	3,020	5,317
Contractual Principal Balances	54,570	66,563
Average Loan Balances	43,146	45,629
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	6,138	12,381
Loans with No Related Reserve	3,783	580
Loans with Related Reserve	2,355	11,801
Related Reserve	1,346	3,034
Contractual Principal Balances	12,836	20,924
Average Loan Balances	8,900	5,952
Owner Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	2,090	2,474
Loans with No Related Reserve	1,170	1,865
Loans with Related Reserve	920	609
Related Reserve	28	609
Contractual Principal Balances	2,468	3,708
Average Loan Balances	2,364	4,461
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	7,896	8,335
Loans with No Related Reserve	3,524	4,732
Loans with Related Reserve	4,372	3,603
Related Reserve	294	319
Contractual Principal Balances	11,269	14,383
Average Loan Balances	8,361	11,005
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	1,492	1,419
Loans with Related Reserve	1,492	1,419
Related Reserve	215	334
Contractual Principal Balances	1,520	1,419
Average Loan Balances	1,448	1,013
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	14,711	15,666
Loans with No Related Reserve	8,185	7,068
Loans with Related Reserve	6,526	8,598
Related Reserve	935	790
Contractual Principal Balances	17,187	18,967
Average Loan Balances	15,483	17,296
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending Loan Balances	7,749	6,376
Loans with No Related Reserve	6,575	3,557
Loans with Related Reserve	1,174	2,819
Related Reserve	202	231
Contractual Principal Balances	9,290	7,162
Average Loan Balances	$ 6,590	$ 5,902

Allowance for Loan Losses and57

Allowance for Loan Losses and Credit Quality Information - Analysis of Impaired Loans (Parenthetical) (Detail) $ in Millions	Sep. 30, 2015USD ($)
Receivables [Abstract]
Acquired impaired loans	$ 2.5
Contractual principal balance	$ 3.3

Allowance for Loan Losses and58

Allowance for Loan Losses and Credit Quality Information - Schedule of Commercial Credit Exposure (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	100.00%	100.00%
Total Commercial Loans	$ 2,827,085	$ 2,656,626
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	40,046	20,798
Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	59,842	67,065
Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	12,075	11,017
Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	$ 1,229	$ 4,296
Total Special and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	4.00%	4.00%
Total Commercial Loans	$ 113,192	$ 103,176
Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	0.00%
Total Commercial Loans	$ 12,816	$ 15,372
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans	96.00%	96.00%
Total Commercial Loans	$ 2,701,077	$ 2,538,078
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	938,060	920,072
Commercial [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	13,759	4,744
Commercial [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	36,048	42,377
Commercial [Member] | Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	4,426	1,225
Commercial [Member] | Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	988	3,034
Commercial [Member] | Total Special and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	55,221	51,380
Commercial [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	2,627	3,269
Commercial [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	880,212	865,423
Owner Occupied Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	811,548	788,598
Owner Occupied Commercial [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	16,048	6,989
Owner Occupied Commercial [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	14,348	14,436
Owner Occupied Commercial [Member] | Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	1,170	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 and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	31,566	23,899
Owner Occupied Commercial [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	2,195	2,264
Owner Occupied Commercial [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	777,787	762,435
Commercial Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	874,316	805,459
Commercial Mortgage [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	10,239	9,065
Commercial Mortgage [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	1,252	9,167
Commercial Mortgage [Member] | Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	6,479	7,927
Commercial Mortgage [Member] | Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	241	319
Commercial Mortgage [Member] | Total Special and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	18,211	26,478
Commercial Mortgage [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	5,400	5,976
Commercial Mortgage [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	850,705	773,005
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	203,161	142,497
Construction [Member] | Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	8,194	1,085
Construction [Member] | Doubtful / Nonaccrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans		334
Construction [Member] | Total Special and Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	8,194	1,419
Construction [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	2,594	3,863
Construction [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial Loans	$ 192,373	$ 137,215

Allowance for Loan Losses and59

Allowance for Loan Losses and Credit Quality Information - Schedule of Commercial Credit Exposure (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired nonimpaired loans	$ 121,780	$ 145,800	$ 156,671
Total Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired nonimpaired loans	$ 100,700	$ 119,800

Allowance for Loan Losses and60

Allowance for Loan Losses and Credit Quality Information - Schedule of Residential and Consumer Credit Exposure (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 3,367,991	$ 3,202,498
Total	100.00%	100.00%
Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0.00%
Total Residential and Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 540,906	$ 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	$ 22,362	$ 22,042
Total	4.00%	4.00%
Total Residential and Consumer Loan [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 387	$ 521
Total Residential and Consumer Loan [Member] | Performing Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 518,157	$ 523,309
Total	96.00%	96.00%
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 199,696	$ 218,329	$ 229,221
Residential [Member] | Nonperforming Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	14,613	15,666
Residential [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	380	512
Residential [Member] | Performing Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	184,703	202,151
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	341,210	327,543	$ 325,786
Consumer [Member] | Nonperforming Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	7,749	6,376
Consumer [Member] | Acquired Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	7	9
Consumer [Member] | Performing Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 333,454	$ 321,158

Allowance for Loan Losses and61

Allowance for Loan Losses and Credit Quality Information - Schedule of Residential and Consumer Credit Exposure (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-performing loans of troubled debt restructured mortgages and home equity installment loans	$ 11,800	$ 11,400
Acquired nonimpaired loans	121,780	145,800	$ 156,671
Total Residential and Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired nonimpaired loans	$ 21,100	$ 26,000

Allowance for Loan Losses and62

Allowance for Loan Losses and Credit Quality Information - Schedule of Loans Identified as Troubled Debt Restructurings During Periods Indicated (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Financing Receivable, Modifications [Line Items]
Total loans identified during the period	$ 681	$ 6,106	$ 2,330	$ 8,586
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period		88		209
Residential [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period	38	72	447	1,916
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period	$ 643	1,097	1,306	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		3,430
Construction [Member]
Financing Receivable, Modifications [Line Items]
Total loans identified during the period		$ 1,419		$ 1,419

Reverse Mortgage Loans - Additi

Reverse Mortgage Loans - Additional Information (Detail)	3 Months Ended	9 Months Ended
	Sep. 30, 2015USD ($)	Sep. 30, 2015USD ($)Loans
Reverse Mortgage Loan Activities [Line Items]
Consolidated mortgage investment	$ 24,500,000	$ 24,500,000
Number of loans | Loans		97
Average age of a mortgage backed securities borrower		94 years
Realizable collateral value of mortgage backed securities	47,100,000	$ 47,100,000
Forecasted housing prices increase rate		2.50%
Forecasted housing prices increase rate, following year and thereafter		2.00%
Internal rate of return		18.58%
Cash payments to reverse mortgagors	5,200,000	$ 5,200,000
Decrease in income	$ 315,000
Reduction in collateral value	1.00%
Maximum [Member]
Reverse Mortgage Loan Activities [Line Items]
Net present value increase (decrease)		$ 769,000
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)		$ (752,000)
Increase (decrease) in present value of IRR		(1.00%)
Zero Collateral Value [Member]
Reverse Mortgage Loan Activities [Line Items]
Internal rate of return	17.52%
Decrease in income	$ 685,000
Collateral Value Reduced by One Percent [Member]
Reverse Mortgage Loan Activities [Line Items]
Internal rate of return	18.09%

Reverse Mortgage Loans - Summar

Reverse Mortgage Loans - Summary of Estimated Cash Payments to Reverse Mortgagors (Detail) $ in Thousands	Sep. 30, 2015USD ($)
Mortgage Banking [Abstract]
Remaining in 2015	$ 152
2,016	538
2,017	429
2,018	338
2,019	264
Years 2020 - 2024	624
Years 2025 - 2029	131
Years 2030 - 2034	21
Thereafter	2
Total	$ 2,499

Goodwill and Intangibles - Sche

Goodwill and Intangibles - Schedule of Allocation of Goodwill to Our Reportable Operating Segments for Purposes of Goodwill Impairment Testing (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Goodwill [Line Items]
Goodwill, Beginning balance	$ 48,651
Changes in goodwill	136	$ 46
Goodwill, Ending balance	48,787
WSFS Bank [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	43,517
Changes in goodwill	136
Goodwill, Ending balance	43,653
Trust & Wealth Management [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	5,134
Goodwill, Ending balance	$ 5,134

Goodwill and Intangibles - Summ

Goodwill and Intangibles - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 14,527	$ 14,560
Accumulated Amortization	(6,975)	(5,618)
Net Intangible Assets	7,552	8,942
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	7,610	7,610
Accumulated Amortization	(4,170)	(3,321)
Net Intangible Assets	3,440	4,289
CB&T Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	3,142	3,142
Accumulated Amortization	(1,133)	(985)
Net Intangible Assets	2,009	2,157
Array and Arrow Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	2,353	2,353
Accumulated Amortization	(759)	(497)
Net Intangible Assets	1,594	1,856
Mortgage Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	1,422	1,455
Accumulated Amortization	(913)	(815)
Net Intangible Assets	$ 509	$ 640

Goodwill and Intangibles - Addi

Goodwill and Intangibles - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization expense on other intangible assets	$ 1,258	$ 879
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense on other intangible assets	$ 1,300

Goodwill and Intangibles - Sc68

Goodwill and Intangibles - Schedule of Estimated Amortization Expense of Intangibles (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Remaining in 2015	$ 430
2,016	1,434
2,017	1,217
2,018	1,137
2,019	962
Thereafter	2,372
Net Intangible Assets	$ 7,552	$ 8,942

Associate Benefit Plans - Addit

Associate Benefit Plans - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015
Postemployment Benefits [Abstract]
Postretirement benefit plans eligibility term	Only those Associates who have achieved ten years of service
Amortization of unrecognized gains losses exceed percentage	10.00%

Associate Benefit Plans - Sched

Associate Benefit Plans - Schedule of Net Periodic Benefit Cost Components of Postretirement Benefits (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Postemployment Benefits [Abstract]
Service cost	$ 15	$ 49	$ 44	$ 147
Interest cost	22	48	66	146
Prior service cost amortization	(19)	(14)	(57)	(44)
Net (gain) loss recognition	(5)	22	(15)	66
Net periodic benefit cost	$ 13	$ 105	$ 38	$ 315

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Jan. 27, 2014	Dec. 31, 2013
Income Tax Examination [Line Items]
Unrecognized tax benefits	$ 0			$ 0
Income tax examination				Federal and state tax returns for the 2012 through 2014 tax years are subject to examination
Income tax examination in process				No state income tax return examinations are currently in process.
Amortization of low-income housing credit investments reflected as income tax expense	477,000	$ 294,000		$ 1,400,000	$ 881,000
Tax benefits recorded as income tax expense				223,000
Carrying value of investment in affordable housing credits	11,400,000			$ 11,400,000		$ 13,000,000
Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Income tax examination period				2,012
Latest Tax Year [Member]
Income Tax Examination [Line Items]
Income tax examination period				2,014
Tax Credit [Member]
Income Tax Examination [Line Items]
Affordable housing tax credits	$ 1,500,000			$ 1,500,000
SASCO [Member]
Income Tax Examination [Line Items]
Deferred tax asset								$ 4,900,000
Deferred tax asset valuation allowance							$ 4,900,000
Deferred tax liabilities								$ 1,800,000
Income tax benefit			$ (6,700,000)
SASCO [Member] | Eliminated [Member]
Income Tax Examination [Line Items]
Deferred tax liabilities							$ 1,800,000

Fair Value Disclosures of Fin72

Fair Value Disclosures of Financial Assets and Liabilities - Balances of Assets Measured at Fair Value (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	$ 756,731	$ 740,124
Total assets measured at fair value on a recurring basis	756,731	740,124
Loans held-for-sale	33,979	28,508
Impaired loans (collateral dependent)	37,056	41,334
Total assets measured at fair value on a nonrecurring basis	74,334	75,576
U.S. Government and Agencies [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	31,107	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	3,299	5,734
Federal National Mortgage Association (FNMA) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	299,772	292,553
Federal National Mortgage Association (FNMA) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	299,772	292,553
Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	110,474	146,882
Federal Home Loan Mortgage Corporation (FHLMC) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	110,474	146,882
Government National Mortgage Association (GNMA) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	61,711	77,797
Government National Mortgage Association (GNMA) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	61,711	77,797
Collateralized Mortgage Obligation (CMO) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	253,667	192,932
Collateralized Mortgage Obligation (CMO) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	253,667	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	756,731	740,124
Loans held-for-sale	33,979	28,508
Total assets measured at fair value on a nonrecurring basis	33,979	28,508
Significant Other Observable Inputs (Level 2) [Member] | U.S. Government and Agencies [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	31,107	29,960
Significant Other Observable Inputs (Level 2) [Member] | Federal National Mortgage Association (FNMA) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	299,772	292,553
Significant Other Observable Inputs (Level 2) [Member] | Federal Home Loan Mortgage Corporation (FHLMC) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	110,474	146,882
Significant Other Observable Inputs (Level 2) [Member] | Government National Mortgage Association (GNMA) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	61,711	77,797
Significant Other Observable Inputs (Level 2) [Member] | Collateralized Mortgage Obligation (CMO) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value	253,667	192,932
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans (collateral dependent)	37,056	41,334
Total assets measured at fair value on a nonrecurring basis	40,355	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	$ 3,299	$ 5,734

Fair Value Disclosures of Fin73

Fair Value Disclosures of Financial Assets and Liabilities - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 756,731,000	$ 756,731,000	$ 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	37,056,000	$ 37,056,000	41,334,000
Valuation allowance on impaired loans	3,000,000	3,000,000	5,300,000
Commitments to Extend Credit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments of lending operations	0		0
Impaired Loans (Collateral Dependent) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Collateral for collateral dependent loans	40,100,000	40,100,000	$ 46,700,000
Federal Agency Debentures [Member] | AAA-Rated [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	31,100,000	31,100,000
Federal Agency MBS [Member] | AAA-Rated [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 725,600,000	$ 725,600,000
Visa [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Conversion rate of Class A stock for each share of Class B stock		1.6483%
Visa [Member] | Common Class B [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Shares held by company	50,833	50,833
Estimated value of shares	$ 5,800,000	$ 5,800,000

Fair Value Disclosures of Fin74

Fair Value Disclosures of Financial Assets and Liabilities - Book Value and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Financial assets:
Cash and cash equivalents	$ 529,037	$ 508,039	$ 471,301	$ 484,426
Fair Value	756,731	740,124
Investment securities held-to-maturity	138,060	126,168
Loans, held-for-sale	33,979	28,508
Loans, net	3,324,020	3,156,652
Reverse mortgage loans	24,476	29,298
Stock in FHLB of Pittsburgh	27,943	23,278
Accrued interest receivable	11,770	11,782
Other assets	49,931	54,561
Financial liabilities:
Deposits	3,644,602	3,649,235
Accrued interest payable	1,760	1,004
Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Loans, held-for-sale	33,979	28,508
Book Value [Member]
Financial assets:
Fair Value	756,731	740,124
Loans, held-for-sale	33,979	28,508
Book Value [Member] | Quoted Prices in Active Markets for Identical Asset (Level 1) [Member]
Financial assets:
Cash and cash equivalents	529,037	508,039
Book Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Investment securities held-to-maturity	138,060	126,168
Loans, net	3,324,020	3,156,652
Stock in FHLB of Pittsburgh	27,943	23,278
Accrued interest receivable	11,770	11,782
Financial liabilities:
Deposits	3,644,602	3,649,235
Borrowed funds	868,379	667,775
Accrued interest payable	1,760	1,004
Book Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Reverse mortgage loans	24,476	29,298
Financial liabilities:
Standby letters of credit	191	151
Fair Value [Member]
Financial assets:
Fair Value	756,731	740,124
Loans, held-for-sale	33,979	28,508
Fair Value [Member] | Quoted Prices in Active Markets for Identical Asset (Level 1) [Member]
Financial assets:
Cash and cash equivalents	529,037	508,039
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets:
Investment securities held-to-maturity	138,138	126,171
Loans, net	3,281,986	3,121,855
Stock in FHLB of Pittsburgh	27,943	23,278
Accrued interest receivable	11,770	11,782
Financial liabilities:
Deposits	3,464,311	3,461,218
Borrowed funds	871,082	672,850
Accrued interest payable	1,760	1,004
Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets:
Reverse mortgage loans	24,476	29,298
Other assets	5,837	4,837
Financial liabilities:
Standby letters of credit	$ 191	$ 151

Segment Information - Additiona

Segment Information - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2015USD ($)SegmentLineOffice
Segment Reporting Information [Line Items]
Number of businesses | Segment	3
Number of offices	55
Cypress Capital Management, LLC [Member]
Segment Reporting Information [Line Items]
Assets under management | $	$ 615
Christiana Trust [Member]
Segment Reporting Information [Line Items]
Assets under administration | $	$ 8,750
Delaware [Member]
Segment Reporting Information [Line Items]
Number of offices	44
Pennsylvania [Member]
Segment Reporting Information [Line Items]
Number of offices	9
Virginia [Member]
Segment Reporting Information [Line Items]
Number of offices	1
Nevada [Member]
Segment Reporting Information [Line Items]
Number of offices	1
WSFS Bank [Member]
Segment Reporting Information [Line Items]
Number of businesses | Segment	1
Cash Connect [Member]
Segment Reporting Information [Line Items]
Number of businesses | Segment	1
Wealth Management [Member]
Segment Reporting Information [Line Items]
Number of businesses | Segment	1
Number of business lines | Line	4

Segment Information - Details o

Segment Information - Details of Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Interest income	$ 44,857	$ 40,799	$ 130,763	$ 117,997
Noninterest income	21,665	20,304	65,218	58,291
Total revenue	66,522	61,103	195,981	176,288
Interest expense	3,860	4,052	11,859	11,729
Noninterest expenses	38,705	39,163	116,272	108,272
Provision for loan losses	1,453	333	6,012	3,013
Total expenses	44,018	43,548	134,143	123,014
Income before taxes	22,504	17,555	61,838	53,274
Income tax provision	8,078	6,142	22,289	12,225
Net Income	14,426	11,413	39,549	41,049
Capital expenditures	4,969	981	8,668	2,366
Cash and cash equivalents	529,037	471,301	529,037	471,301	$ 508,039	$ 484,426
Goodwill	48,787		48,787		48,651
Other segment assets	4,490,118		4,490,118		4,296,630
Total assets	5,067,942		5,067,942		4,853,320
Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income	2,576	2,241	7,408	6,669
Noninterest income	2,273	1,838	6,484	5,727
Total revenue	4,849	4,079	13,892	12,396
Interest expense	2,576	2,241	7,408	6,669
Noninterest expenses	2,273	1,838	6,484	5,727
Total expenses	4,849	4,079	13,892	12,396
External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue	71,371	65,182	209,873	188,684
Total expenses	48,867	47,627	148,035	135,410
WSFS Bank [Member]
Segment Reporting Information [Line Items]
Interest income	42,873	38,777	124,739	112,178
Noninterest income	8,944	9,161	27,615	26,334
Total revenue	51,817	47,938	152,354	138,512
Interest expense	3,688	3,952	11,422	11,413
Noninterest expenses	30,066	32,033	91,066	87,668
Provision for loan losses	1,345	198	5,688	2,320
Total expenses	35,099	36,183	108,176	101,401
Income before taxes	17,683	12,640	47,158	39,887
Capital expenditures	3,487	914	4,603	2,207
Cash and cash equivalents	78,209		78,209		73,395
Goodwill	43,653		43,653		43,517
Other segment assets	4,305,469		4,305,469		4,107,212
Total assets	4,427,331		4,427,331		4,224,124
WSFS Bank [Member] | Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income	879	880	2,626	2,545
Noninterest income	2,028	1,602	5,810	5,041
Total revenue	2,907	2,482	8,436	7,586
Interest expense	1,697	1,361	4,782	4,124
Noninterest expenses	245	236	674	686
Total expenses	1,942	1,597	5,456	4,810
WSFS Bank [Member] | External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue	54,724	50,420	160,790	146,098
Total expenses	37,041	37,780	113,632	106,211
Cash Connect [Member]
Segment Reporting Information [Line Items]
Noninterest income	7,138	6,640	20,845	18,974
Total revenue	7,138	6,640	20,845	18,974
Noninterest expenses	4,255	3,993	12,780	11,425
Total expenses	4,255	3,993	12,780	11,425
Income before taxes	2,084	1,982	5,628	5,443
Capital expenditures	1,466	67	4,036	156
Cash and cash equivalents	448,594		448,594		431,527
Other segment assets					2,006
Total assets	448,594		448,594		433,533
Cash Connect [Member] | Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Noninterest income	219	204	601	601
Total revenue	219	204	601	601
Interest expense	394	360	1,156	1,019
Noninterest expenses	624	509	1,882	1,688
Total expenses	1,018	869	3,038	2,707
Cash Connect [Member] | External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue	7,357	6,844	21,446	19,575
Total expenses	5,273	4,862	15,818	14,132
Wealth Management [Member]
Segment Reporting Information [Line Items]
Interest income	1,984	2,022	6,024	5,819
Noninterest income	5,583	4,503	16,758	12,983
Total revenue	7,567	6,525	22,782	18,802
Interest expense	172	100	437	316
Noninterest expenses	4,384	3,137	12,426	9,179
Provision for loan losses	108	135	324	693
Total expenses	4,664	3,372	13,187	10,188
Income before taxes	2,737	2,933	9,052	7,944
Capital expenditures	16		29	3
Cash and cash equivalents	2,234		2,234		3,117
Goodwill	5,134		5,134		5,134
Other segment assets	184,649		184,649		187,412
Total assets	192,017		192,017		$ 195,663
Wealth Management [Member] | Inter-Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income	1,697	1,361	4,782	4,124
Noninterest income	26	32	73	85
Total revenue	1,723	1,393	4,855	4,209
Interest expense	485	520	1,470	1,526
Noninterest expenses	1,404	1,093	3,928	3,353
Total expenses	1,889	1,613	5,398	4,879
Wealth Management [Member] | External Customer [Member]
Segment Reporting Information [Line Items]
Total revenue	9,290	7,918	27,637	23,011
Total expenses	$ 6,553	$ 4,985	$ 18,585	$ 15,067

Indemnifications and Guarante77

Indemnifications and Guarantees - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2015USD ($)TransactionsFinancial_Institution	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)TransactionsFinancial_Institution	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)Transactions
Guarantor Obligations [Line Items]
Provision for losses at the time of sale	$ 1,453,000	$ 333,000	$ 6,012,000	$ 3,013,000
Number of unrelated financial institutions | Financial_Institution	3		3
Derivative transaction held for guarantee | Transactions	114		114		101
Aggregate notional amount	$ 451,500,000		$ 451,500,000		$ 417,900,000
Notional amount maturity period, minimum			2 years
Notional amount maturity period, maximum			10 years 6 months
Aggregate market value of swaps to customers	21,700,000		$ 21,700,000		$ 16,500,000
Loss reserves for swap guarantees	$ 0		0
Secondary Market Loan Sales [Member]
Guarantor Obligations [Line Items]
Provision for losses at the time of sale			$ 0
Number of loans repurchased | Transactions			1

Change in Accumulated Other C78

Change in Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 1,229	$ (2,995)	$ 3,500	$ (21,294)
Other comprehensive income (loss) before reclassifications	6,163	(773)	4,676	18,111
Less: Amounts reclassified from accumulated other comprehensive income (loss)	(47)	(23)	(623)	(608)
Amortization of unrealized gain on securities reclassified to held-to-maturity	(104)		(312)
Net current-period other comprehensive income (loss)	6,012	(796)	3,741	17,503
Ending Balance	7,241	(3,791)	7,241	(3,791)
Net Change in Defined Benefit Plan [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	817	(412)	847	(472)
Other comprehensive income (loss) before reclassifications	(15)	5	(45)	65
Net current-period other comprehensive income (loss)	(15)	5	(45)	65
Ending Balance	802	(407)	802	(407)
Net Change in Securities Held-to-maturity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(208)
Amortization of unrealized gain on securities reclassified to held-to-maturity	(104)		(312)
Net current-period other comprehensive income (loss)	(104)		(312)
Ending Balance	(312)		(312)
Net Change in Securities Available-For-Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	620	(2,583)	2,653	(20,822)
Other comprehensive income (loss) before reclassifications	6,178	(778)	4,721	18,046
Less: Amounts reclassified from accumulated other comprehensive income (loss)	(47)	(23)	(623)	(608)
Net current-period other comprehensive income (loss)	6,131	(801)	4,098	17,438
Ending Balance	$ 6,751	$ (3,384)	$ 6,751	$ (3,384)

Change in Accumulated Other C79

Change in Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains on securities transactions	$ 76	$ 36	$ 1,004	$ 979
Interest income on investment securities	875	837	2,587	2,443
Income before taxes	22,504	17,555	61,838	53,274
Income taxes	(8,078)	(6,142)	(22,289)	(12,225)
Net income	14,426	11,413	39,549	41,049
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(166)	(18)	(980)	(543)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Amortization of Defined Benefit Pension Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service (credits) costs	(19)	22	(57)	905
Transition obligation				245
Actuarial (gains) losses	(5)	(14)	(15)	(1,046)
Income before taxes	(24)	8	(72)	104
Income taxes	9	(3)	27	(39)
Net income	(15)	5	(45)	65
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	(76)	(36)	(1,004)	(979)
Income taxes	29	13	381	371
Net income	(47)	$ (23)	(623)	$ (608)
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	(159)		(487)
Income taxes	55		175
Net income	$ (104)		$ (312)

Legal and Other Proceedings - A

Legal and Other Proceedings - Additional Information (Detail) - Goldstein Case [Member]	9 Months Ended
	Sep. 30, 2015USD ($)
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

Subsequent Event - Additional I

Subsequent Event - Additional Information (Detail) - Alliance [Member] $ / shares in Units, $ in Millions	Oct. 09, 2015USD ($)$ / shares	Mar. 02, 2015USD ($)shares	Sep. 30, 2015Branch	Jun. 30, 2015USD ($)
Subsequent Event [Line Items]
Deposits				$ 340
Assets				$ 415
Payments to Acquire Businesses		$ 26.6
Number of Shares Issued | shares		2,459,223
Common stock outstanding percentage		9.00%
Date of Acquisition Agreement			Mar. 2, 2015
Effective Date of Acquisition			Oct. 9, 2015
Number of branch locations | Branch			8
Subsequent Event [Member]
Subsequent Event [Line Items]
Transaction value, cash and stock	$ 97.9
Closing share price | $ / shares	$ 29.01