10-Q/A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q/A

(Amendment No. 1)

Quarterly Report Under Section 13 or 15 (d)

of the Securities and Exchange Act of 1934.

For Quarter ended September 30, 2013

Commission File Number 1-35746

Bryn Mawr Bank Corporation

(Exact name of registrant as specified in its charter)

Pennsylvania	23-2434506
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer identification No.)
801 Lancaster Avenue, Bryn Mawr, Pennsylvania	19010
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code (610) 525-1700

Not Applicable

Former name, former address and fiscal year, if changed since last report.

Indicate by checkmark whether the registrant (1) has filed all reports to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by checkmark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, or a smaller reporting company. See definition of “accelerated filer”, “large accelerated filer”, and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	x
Non-accelerated filer	¨	Smaller reporting company	¨

Indicate by checkmark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act)    Yes  ¨    No  x

Indicate the number of shares outstanding of each of the issuer’s class of common stock, as of the latest practicable date.

Class	Outstanding at November 4, 2013
Common Stock, par value $1	13,586,437

EXPLANATORY NOTE

This Amendment No. 1 on Form 10-Q/A (the “Amendment”) of Bryn Mawr Bank Corporation (the “Corporation”) amends the Corporation’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2013, originally filed with the Securities and Exchange Commission on November 8, 2013 (the “Original Report”). This Amendment is being filed solely to correct a typographical error on the cover page of the Original Report with respect to the number of shares outstanding of the Corporation’s common stock as of the November 4, 2013. The correct number of shares of the Corporation’s common stock outstanding as of November 4, 2013 was 13,586,437.

This Amendment No. 1 speaks as of the original filing date of the Form 10-Q, does not reflect events that may have occurred subsequent to the original filing date, and does not modify or update in any way disclosures made in the Original Report. No other changes have been made to the Original Report.

This Amendment has been signed as of a current date, and includes new certifications by the registrant’s principal executive officer and principal financial officer, which are being filed as exhibits to this Amendment. Because this Amendment includes no financial statements, we are not including certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

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ITEM 6. Exhibits

Exhibit No.	Description and References
3.1	Amended and Restated By-Laws, effective November 20, 2007, incorporated by reference to Exhibit 3.2 of the Corporation’s Form 8-K filed with the SEC on November 21, 2007
3.2	Amended and Restated Articles of Incorporation, effective November 21, 2007, incorporated by reference to Exhibit 3.1 of the Corporation’s Form 8-K filed with the SEC on November 21, 2007
10.1	Mutual Termination Agreement, dated as of August 8, 2013, by and between Bryn Mawr Bank Corporation and MidCoast Community Bancorp, Inc., incorporated by reference to Exhibit 10.1 to the Corporation’s Form 8-K filed with the SEC on August 9, 2013
31.1	Certification of the Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed herewith
31.2	Certification of the Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed herewith
32.1	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, previously filed
32.2	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, previously filed
101.INS XBRL	Instance Document
101.SCH XBRL	Taxonomy Extension Schema Document
101.CAL XBRL	Taxonomy Extension Calculation Linkbase Document
101.DEF XBRL	Taxonomy Extension Definition Linkbase Document
101.LAB XBRL	Taxonomy Extension Label Linkbase Document
101.PRE XBRL	Taxonomy Extension Presentation Linkbase Document

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Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Bryn Mawr Bank Corporation
Date: November 20, 2013	By:	/S/ FREDERICK C. PETERS II
		Frederick C. Peters II
		President & Chief Executive Officer
Date: November 20, 2013	By:	/S/ J. DUNCAN SMITH
		J. Duncan Smith CPA
		Treasurer & Chief Financial Officer

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EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Frederick C. Peters II, certify that:

1. I have reviewed this Amendment No. 1 to the quarterly report on Form 10-Q of Bryn Mawr Bank Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Date: November 20, 2013	/S/ FREDERICK C. PETERS II
	Frederick C. Peters II, Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, J. Duncan Smith, certify that:

1. I have reviewed this Amendment No. 1 to the quarterly report on Form 10-Q of Bryn Mawr Bank Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Date: November 20, 2013	/S/ J. DUNCAN SMITH
	J. Duncan Smith CPA, Treasurer and Chief Financial Officer

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Schedule of Detail Segment Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Net interest income	$ 18,533		$ 15,951		$ 53,865		$ 47,839
Less: loan loss provision	959		1,000		2,763		3,003
Net interest income after loan loss provision	17,574		14,951		51,102		44,836
Other income:
Fees for wealth management services	8,635		7,993		26,078		21,433
Service charges on deposit accounts	627		634		1,807		1,823
Loan servicing and other fees	481		432		1,380		1,303
Net gain on sale of loans	578		1,837		3,588		4,311
Net gain on sale of available for sale securities			416		2		1,132
Net (loss) on sale of other real estate owned	(1)		(45)		(194)		(86)
BOLI income	72		108		270		331
Other operating income	995		873		3,189		2,969
Total non-interest income	11,387		12,248		36,120		33,216
Other expenses:
Salaries & wages	9,012		8,703		26,908		24,283
Employee benefits	1,896		1,903		6,433		6,086
Occupancy & equipment	1,646		1,488		5,124		4,258
Amortization of intangible assets	658		669		1,978		1,738
Professional fee	636		609		1,875		1,837
Other operating expenses	5,475		5,517		17,764		15,610
Total non-interest expenses	19,323		18,889		60,082		53,812
Segment profit	9,638		8,310		27,140		24,240
Pre-tax segment profit after eliminations	9,638		8,310		27,140		24,240
% of segment pre-tax profit after eliminations	100.00%		100.00%		100.00%		100.00%
Segment assets	2,058,973		1,815,000		2,058,973		1,815,000		2,035,885
Banking
Net interest income	18,532		15,950		53,863		47,836
Less: loan loss provision	959		1,000		2,763		3,003
Net interest income after loan loss provision	17,573		14,950		51,100		44,833
Other income:
Service charges on deposit accounts	627		634		1,807		1,823
Loan servicing and other fees	481		432		1,380		1,303
Net gain on sale of loans	578		1,837		3,588		4,311
Net gain on sale of available for sale securities			416		2		1,132
Net (loss) on sale of other real estate owned	(1)		(45)		(194)		(86)
BOLI income	72		107		270		330
Other operating income	947		833		3,051		2,903
Total non-interest income	2,704		4,214		9,904		11,716
Other expenses:
Salaries & wages	5,986		5,799		17,898		16,294
Employee benefits	1,196		1,243		4,235		4,239
Occupancy & equipment	1,267		1,124		3,994		3,001
Amortization of intangible assets	78		71		237		218
Professional fee	609		537		1,732		1,672
Other operating expenses	4,812		4,594		15,082		13,602
Total non-interest expenses	13,948		13,368		43,178		39,026
Segment profit	6,329		5,796		17,826		17,523
Intersegment (revenues) expenses	(19)	[1]	(128)	[1]	(323)	[1]	(368)	[1]
Pre-tax segment profit after eliminations	6,310		5,668		17,503		17,155
% of segment pre-tax profit after eliminations	65.50%		68.20%		64.50%		70.80%
Segment assets	2,017,000		1,769,000		2,017,000		1,769,000
Wealth Management
Net interest income	1		1		2		3
Net interest income after loan loss provision	1		1		2		3
Other income:
Fees for wealth management services	8,635		7,993		26,078		21,433
Other operating income	48		41		138		67
Total non-interest income	8,683		8,034		26,216		21,500
Other expenses:
Salaries & wages	3,026		2,904		9,010		7,989
Employee benefits	700		660		2,198		1,847
Occupancy & equipment	379		364		1,130		1,257
Amortization of intangible assets	580		598		1,741		1,520
Professional fee	27		72		143		165
Other operating expenses	663		923		2,682		2,008
Total non-interest expenses	5,375		5,521		16,904		14,786
Segment profit	3,309		2,514		9,314		6,717
Intersegment (revenues) expenses	19	[1]	128	[1]	323	[1]	368	[1]
Pre-tax segment profit after eliminations	3,328		2,642		9,637		7,085
% of segment pre-tax profit after eliminations	34.50%		31.80%		35.50%		29.20%
Segment assets	$ 42,000		$ 46,000		$ 42,000		$ 46,000

[1] Inter-segment revenues consist of rental payments, interest on deposits and management fees.

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Details Derivative Positions (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Derivative [Line Items]
Notional Amount	$ 15,000	$ 15,000
Trade Date	Dec. 13, 2012	Dec. 13, 2012
Effective Date	Nov. 30, 2015	Nov. 30, 2015
Maturity Date	Nov. 28, 2022	Nov. 28, 2022
Receive (Variable) Index	US 3-Month LIBOR	US 3-Month LIBOR
Current Project Receive Rate	3.301%	2.338%
Pay Fixed Swap Rate	2.376%	2.376%
Fair Value of Derivative Position	$ 889	$ (36)

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Schedule of Information about Options Outstanding (Detail) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, Shares	688,476	784,226
Granted, Shares	11,475	11,475
Forfeited, Shares		(650)
Expired, Shares	(250)	(250)
Exercised, Shares	(39,600)	(134,700)
Options outstanding, Shares	660,101	660,101
Options outstanding, Weighted Average Exercise Price	$ 20.69	$ 20.40
Granted, Weighted Average Exercise Price	$ 21.24	$ 21.24
Forfeited, Weighted Average Exercise Price		$ 19.65
Expired, Weighted Average Exercise Price	$ 22.00	$ 22.00
Exercised, Weighted Average Exercise Price	$ 20.45	$ 18.93
Options outstanding, Weighted Average Exercise Price	$ 20.72	$ 20.72
Options outstanding, beginning of period, Weighted Average Grant Date Fair Value	$ 4.69	$ 4.62
Granted, Weighted Average Grant Date Fair Value	$ 4.83	$ 4.83
Forfeited, Weighted Average Grant Date Fair Value		$ 4.62
Expired, Weighted Average Grant Date Fair Value	$ 4.90	$ 4.90
Exercised, Weighted Average Grant Date Fair Value	$ 4.64	$ 4.22
Options outstanding, end of period, Weighted Average Grant Date Fair Value	$ 4.70	$ 4.70

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Components of Accumulated Other Comprehensive (Loss) Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Accumulated Net Unrealized Investment Gain (Loss)	Sep. 30, 2012 Accumulated Net Unrealized Investment Gain (Loss)	Sep. 30, 2013 Accumulated Net Unrealized Investment Gain (Loss)	Sep. 30, 2012 Accumulated Net Unrealized Investment Gain (Loss)	Sep. 30, 2013 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	Jun. 30, 2013 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	Sep. 30, 2013 Accumulated Defined Benefit Plans Adjustment	Sep. 30, 2012 Accumulated Defined Benefit Plans Adjustment	Sep. 30, 2013 Accumulated Defined Benefit Plans Adjustment	Sep. 30, 2012 Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (11,105)	$ (9,878)	$ (10,078)	$ (11,365)	$ (123)	$ 2,735	$ 3,164	$ 1,792	$ (24)	$ 577	$ (11,559)	$ (12,613)	$ (13,218)	$ (13,157)
Net change	296	1,223	(731)	2,710	50	951	(3,237)	1,894	601		246	272	1,905	816
Ending balance	$ (10,809)	$ (8,655)	$ (10,809)	$ (8,655)	$ (73)	$ 3,686	$ (73)	$ 3,686	$ 577	$ 577	$ (11,313)	$ (12,341)	$ (11,313)	$ (12,341)

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Carrying Amount, Estimated Fair Value and Fair Value Hierarchy Level (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2012	Dec. 31, 2011
Financial assets:
Cash and cash equivalents	$ 96,161		$ 175,686		$ 37,085	$ 69,140
Investment securities, available for sale	319,917		316,614
Investment securities, trading	2,357		1,447
Net portfolio loans and leases	1,484,988		1,384,031
Mortgage servicing rights	4,744		4,491
Other assets	10,506		10,912
Financial liabilities:
Deposits	1,550,656		1,634,682
Short-term borrowings	75,588		9,403		19,029
Long-term FHLB advances and other borrowings	191,645		161,315
Other liabilities	22,481		25,688
Carrying Amount
Financial assets:
Investment securities, available for sale	319,917	[1]	316,614	[1]
Total financial assets	1,932,080		1,907,416
Financial liabilities:
Total financial liabilities	1,841,212		1,832,321
Carrying Amount | Level 1
Financial assets:
Cash and cash equivalents	96,161	[1]	175,686	[1]
Carrying Amount | Level 2
Financial assets:
Investment securities, trading	2,357	[1]	1,447	[1]
Loans held for sale	1,284	[1]	3,412	[1]
Financial liabilities:
Deposits	1,550,656	[1]	1,634,682	[1]
Short-term borrowings	75,588	[1]	9,403	[1]
Long-term FHLB advances and other borrowings	191,645	[1]	161,315	[1]
Other liabilities	23,323	[1]	26,921	[1]
Carrying Amount | Level 3
Financial assets:
Net portfolio loans and leases	1,484,988	[1]	1,384,031	[1]
Mortgage servicing rights	4,744	[1]	4,491	[1]
Other assets	22,629	[1]	21,735	[1]
Estimated Fair Value
Financial assets:
Investment securities, available for sale	319,917	[1]	316,614	[1]
Total financial assets	1,921,814		1,936,221
Financial liabilities:
Total financial liabilities	1,840,784		1,835,971
Estimated Fair Value | Level 1
Financial assets:
Cash and cash equivalents	96,161	[1]	175,686	[1]
Estimated Fair Value | Level 2
Financial assets:
Investment securities, trading	2,357	[1]	1,447	[1]
Loans held for sale	1,284	[1]	3,482	[1]
Financial liabilities:
Deposits	1,550,683	[1]	1,635,374	[1]
Short-term borrowings	75,588	[1]	9,403	[1]
Long-term FHLB advances and other borrowings	191,190	[1]	164,273	[1]
Other liabilities	23,323	[1]	26,921	[1]
Estimated Fair Value | Level 3
Financial assets:
Net portfolio loans and leases	1,473,844	[1]	1,412,619	[1]
Mortgage servicing rights	5,622	[1]	4,638	[1]
Other assets	$ 22,629	[1]	$ 21,735	[1]

[1] see Note 17 for a description of fair value hierarchy levels

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Derivatives and Hedging Activities

9 Months Ended

Sep. 30, 2013

Derivatives and Hedging Activities

Note 8 - Derivatives and Hedging Activities

In December 2012, the Corporation entered into a forward-starting interest rate swap to hedge the cash flows of a $15 million floating-rate FHLB borrowing. The interest rate swap involves the exchange of the Corporation’s floating rate interest payments on the underlying principal amount. This swap was designated, and qualified, for cash-flow hedge accounting. The term of the swap begins November 30, 2015 and ends November 28, 2022. For derivative instruments that are designated and qualify as hedging instruments, the effective portion of gains or losses is reported as a component of other comprehensive income, and is subsequently reclassified into earnings as an adjustment to interest expense in the periods in which the hedged forecasted transaction affects earnings.

The following table details the Corporation’s derivative positions as of the balance sheet dates indicated:

As of September 30, 2013:

(dollars in thousands)

Current

Fair Value of

Notional Amount

Trade Date

Effective Date

Maturity Date

Receive (Variable) Index

Projected Receive Rate

Pay Fixed Swap Rate

Derivative Position

$

15,000

12/13/2012

11/30/2015

11/28/2022

US 3-Month LIBOR

3.301

%

2.376

%

$

889

As of December 31, 2012:

(dollars in thousands)

Current

Fair Value of

Notional Amount

Trade Date

Effective Date

Maturity Date

Receive (Variable) Index

Projected Receive Rate

Pay Fixed Swap Rate

Derivative Position

$

15,000

12/13/2012

11/30/2015

11/28/2022

US 3-Month LIBOR

2.338

%

2.376

%

$

(36

)

For the three and nine months ended September 30, 2013, there have been no reclassifications of the interest-rate swap’s fair value from other comprehensive income to earnings. The Corporation held no derivatives during the three and nine months ended September 30, 2012.

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Components of Net Investments in Leases (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Minimum lease payments receivable	$ 43,312	$ 37,349
Unearned lease income	(7,068)	(6,099)
Initial direct costs and deferred fees	1,835	1,581
Total	$ 38,079	$ 32,831

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Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest income:
Interest and fees on loans and leases	$ 18,697	$ 17,027	$ 54,728	$ 51,233
Interest on cash and cash equivalents	21	34	131	86
Interest on investment securities:
Taxable	967	937	2,653	3,088
Non-taxable	107	56	289	139
Dividends	28	27	91	95
Total interest income	19,820	18,081	57,892	54,641
Interest expense on:
Deposits	639	937	2,109	3,128
Short-term borrowings	5	5	12	16
Long-term FHLB advances and other borrowings	643	918	1,906	2,806
Subordinated debentures		270		852
Total interest expense	1,287	2,130	4,027	6,802
Net interest income	18,533	15,951	53,865	47,839
Provision for loan and lease losses	959	1,000	2,763	3,003
Net interest income after provision for loan and lease losses	17,574	14,951	51,102	44,836
Non-interest income:
Fees for wealth management services	8,635	7,993	26,078	21,433
Service charges on deposits	627	634	1,807	1,823
Loan servicing and other fees	481	432	1,380	1,303
Net gain on sale of residential mortgage loans	578	1,837	3,588	4,311
Net gain on sale of investment securities available for sale		416	2	1,132
Net loss on sale of other real estate owned ("OREO")	(1)	(45)	(194)	(86)
Bank owned life insurance ("BOLI") income	72	108	270	331
Other operating income	995	873	3,189	2,969
Total non-interest income	11,387	12,248	36,120	33,216
Non-interest expenses:
Salaries and wages	9,012	8,703	26,908	24,283
Employee benefits	1,896	1,903	6,433	6,086
Net gain on curtailment of nonqualified pension plan			(690)
Occupancy and bank premises	1,646	1,488	5,124	4,258
Furniture, fixtures, and equipment	920	935	2,960	2,766
Advertising	302	267	1,095	946
Amortization of mortgage servicing rights	187	243	617	718
Net impairment of mortgage servicing rights	33	105	13	82
Amortization of intangible assets	658	669	1,978	1,738
FDIC insurance	271	262	804	715
Due diligence and merger-related expenses	328	316	1,730	1,439
Professional fees	636	609	1,875	1,837
Early extinguishment of debt - costs and premiums			347
Other operating expenses	3,434	3,389	10,888	8,944
Total non-interest expenses	19,323	18,889	60,082	53,812
Income before income taxes	9,638	8,310	27,140	24,240
Income tax expense	3,237	2,885	9,167	8,397
Net income	$ 6,401	$ 5,425	$ 17,973	$ 15,843
Basic earnings per common share	$ 0.48	$ 0.41	$ 1.35	$ 1.21
Diluted earnings per common share	$ 0.47	$ 0.41	$ 1.33	$ 1.20
Dividends declared per share	$ 0.17	$ 0.16	$ 0.51	$ 0.48
Weighted-average basic shares outstanding	13,336,799	13,149,050	13,274,801	13,067,551
Weighted average dilutive shares	275,343	146,377	244,302	133,799
Adjusted weighted-average diluted shares	13,612,142	13,295,427	13,519,103	13,201,350

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Basis of Presentation

9 Months Ended

Sep. 30, 2013

Basis of Presentation

Note 1 - Basis of Presentation

The unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). In the opinion of Bryn Mawr Bank Corporation’s (the “Corporation”) Management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations for the interim periods presented have been included. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto in the Corporation’s 2012 Annual Report on Form 10-K.

The results of operations for the three and nine months ended September 30, 2013 are not necessarily indicative of the results to be expected for the full year.

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Shareholders' Equity

9 Months Ended

Sep. 30, 2013

Shareholders' Equity

Note 15 - Shareholders’ Equity

Dividend

During the third quarter of 2013, the Corporation declared and paid a regular quarterly dividend of $0.17 per share. This payment totaled $2.3 million, based on outstanding shares at August 6, 2013 of 13,545,713. On October 24, 2013, the Corporation’s Board of Directors declared a regular quarterly dividend of $0.18 per share payable December 1, 2013 to shareholders of record as of November 6, 2013.

S-3 Shelf Registration Statement and Offerings Thereunder

In April 2012, the Corporation filed a shelf registration statement (the “Shelf Registration Statement”) to replace its 2009 Shelf Registration Statement, which was set to expire in June 2012. This new Shelf Registration Statement allows the Corporation to raise additional capital through offers and sales of registered securities consisting of common stock, debt securities, warrants to purchase common stock, stock purchase contracts and units or units consisting of any combination of the foregoing securities. Using the prospectus in the Shelf Registration Statement, together with applicable prospectus supplements, the Corporation may sell, from time to time, in one or more offerings, such securities in a dollar amount up to $150,000,000, in the aggregate.

The Corporation has in place under its Shelf Registration Statement a Dividend Reinvestment and Stock Purchase Plan (the “Plan”), which was amended and restated on April 27, 2012, primarily to increase the number of shares which can be issued by the Corporation from 850,000 to 1,500,000 shares of registered common stock. The Plan allows for the grant of a request for waiver (“RFW”) above the Plan’s maximum investment of $120 thousand per account per year. An RFW is granted based on a variety of factors, including the Corporation’s current and projected capital needs, prevailing market prices of the Corporation’s common stock and general economic and market conditions.

The Plan is intended to allow both existing shareholders and new investors to easily and conveniently increase their investment in the Corporation without incurring many of the fees and commissions normally associated with brokerage transactions. For the nine months ended September 30, 2013, the Corporation issued 6,924 shares and raised $161 thousand through the Plan.

Options

In addition to shares issued through the Plan, the Corporation also issues shares through the exercise of stock options. During the nine months ended September 30, 2013, 134,700 shares were issued pursuant to the exercise of stock options, increasing shareholders’ equity by $2.6 million.

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Recorded Investment and Principal Balance of Impaired Loans by Portfolio Segment Their Related Allowance for Loan and Lease Losses and Interest Income Recognized (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 19,408	[1]	$ 21,637	[1]	$ 19,408	[1]	$ 21,637	[1]	$ 21,790	[2]
Principal Balance	20,950		22,142		20,950		22,142		22,563
Related Allowance	1,347		1,920		1,347		1,920		2,354
Average Principal Balance	21,327		24,166		21,275		24,132
Interest Income Recognized	110		97		210		299
Cash-Basis Interest Income Recognized
Impaired loans with related allowance
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,660	[1]	9,413	[1]	7,660	[1]	9,413	[1]	11,967	[2]
Principal Balance	7,799		9,510		7,799		9,510		12,069
Related Allowance	1,347		1,920		1,347		1,920		2,354
Average Principal Balance	7,986		11,136		7,934		11,273
Interest Income Recognized	55		10		155		34
Cash-Basis Interest Income Recognized
Impaired loans with related allowance | Home equity lines and loans
Financing Receivable, Impaired [Line Items]
Recorded Investment	544	[1]	1,152	[1]	544	[1]	1,152	[1]	1,261	[2]
Principal Balance	589		1,210		589		1,210		1,321
Related Allowance	119		203		119		203		217
Average Principal Balance	619		1,211		617		1,211
Interest Income Recognized	5				15
Cash-Basis Interest Income Recognized
Impaired loans with related allowance | Residential mortgage
Financing Receivable, Impaired [Line Items]
Recorded Investment	4,448	[1]	1,708	[1]	4,448	[1]	1,708	[1]	4,778	[2]
Principal Balance	4,419		1,716		4,419		1,716		4,793
Related Allowance	628		229		628		229		667
Average Principal Balance	4,485		1,716		4,408		1,718
Interest Income Recognized	28		7		83		22
Cash-Basis Interest Income Recognized
Impaired loans with related allowance | Construction Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment			3,678	[1]			3,678	[1]	2,564	[2]
Principal Balance			3,694				3,694		2,564
Related Allowance			698				698		543
Average Principal Balance			5,313				5,444
Cash-Basis Interest Income Recognized
Impaired loans with related allowance | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,586	[1]	2,856	[1]	2,586	[1]	2,856	[1]	3,357	[2]
Principal Balance	2,709		2,869		2,709		2,869		3,383
Related Allowance	544		771		544		771		919
Average Principal Balance	2,798		2,875		2,823		2,877
Interest Income Recognized	21		3		53		12
Cash-Basis Interest Income Recognized
Impaired loans with related allowance | Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment	82	[1]	19	[1]	82	[1]	19	[1]	7	[2]
Principal Balance	82		21		82		21		8
Related Allowance	56		19		56		19		8
Average Principal Balance	84		21		86		23
Interest Income Recognized	1				4
Cash-Basis Interest Income Recognized
Impaired loans without related allowance
Financing Receivable, Impaired [Line Items]
Recorded Investment	11,748	[1],[3],[4]	12,224	[1],[3],[5]	11,748	[1],[3],[4]	12,224	[1],[3],[5]	9,823	[2],[6]
Principal Balance	13,151	[3],[4]	12,632	[3],[5]	13,151	[3],[4]	12,632	[3],[5]	10,494	[6]
Average Principal Balance	13,341	[3],[4]	13,030	[3],[5]	13,341	[3],[4]	12,859	[3],[5]
Interest Income Recognized	55	[3],[4]	87	[3],[5]	55	[3],[4]	265	[3],[5]
Cash-Basis Interest Income Recognized		[3],[4]		[3],[5]		[3],[4]		[3],[5]
Impaired loans without related allowance | Commercial Mortgage
Financing Receivable, Impaired [Line Items]
Recorded Investment	421	[1],[3],[4]	343	[1],[3],[5]	421	[1],[3],[4]	343	[1],[3],[5]	541	[2],[6]
Principal Balance	432	[3],[4]	364	[3],[5]	432	[3],[4]	364	[3],[5]	574	[6]
Average Principal Balance	471	[3],[4]	364	[3],[5]	471	[3],[4]	364	[3],[5]
Interest Income Recognized							4	[3],[5]
Cash-Basis Interest Income Recognized		[3],[4]		[3],[5]		[3],[4]		[3],[5]
Impaired loans without related allowance | Home equity lines and loans
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,523	[1],[3],[4]	1,727	[1],[3],[5]	1,523	[1],[3],[4]	1,727	[1],[3],[5]	2,142	[2],[6]
Principal Balance	1,532	[3],[4]	1,795	[3],[5]	1,532	[3],[4]	1,795	[3],[5]	2,223	[6]
Average Principal Balance	1,631	[3],[4]	2,050	[3],[5]	1,631	[3],[4]	2,042	[3],[5]
Interest Income Recognized	2	[3],[4]	1	[3],[5]	2	[3],[4]	3	[3],[5]
Cash-Basis Interest Income Recognized		[3],[4]		[3],[5]		[3],[4]		[3],[5]
Impaired loans without related allowance | Residential mortgage
Financing Receivable, Impaired [Line Items]
Recorded Investment	5,091	[1],[3],[4]	7,992	[1],[3],[5]	5,091	[1],[3],[4]	7,992	[1],[3],[5]	4,433	[2],[6]
Principal Balance	5,340	[3],[4]	8,311	[3],[5]	5,340	[3],[4]	8,311	[3],[5]	4,741	[6]
Average Principal Balance	5,598	[3],[4]	8,324	[3],[5]	5,598	[3],[4]	8,231	[3],[5]
Interest Income Recognized	39	[3],[4]	68	[3],[5]	39	[3],[4]	204	[3],[5]
Cash-Basis Interest Income Recognized		[3],[4]		[3],[5]		[3],[4]		[3],[5]
Impaired loans without related allowance | Construction Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,072	[1],[3],[4]	1,317	[1],[3],[5]	3,072	[1],[3],[4]	1,317	[1],[3],[5]	2,067	[2],[6]
Principal Balance	4,035	[3],[4]	1,317	[3],[5]	4,035	[3],[4]	1,317	[3],[5]	2,317	[6]
Average Principal Balance	3,824	[3],[4]	1,446	[3],[5]	3,824	[3],[4]	1,376	[3],[5]
Interest Income Recognized	13	[3],[4]	15	[3],[5]	13	[3],[4]	44	[3],[5]
Cash-Basis Interest Income Recognized		[3],[4]		[3],[5]		[3],[4]		[3],[5]
Impaired loans without related allowance | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,641	[1],[3],[4]	845	[1],[3],[5]	1,641	[1],[3],[4]	845	[1],[3],[5]	640	[2],[6]
Principal Balance	1,812	[3],[4]	845	[3],[5]	1,812	[3],[4]	845	[3],[5]	639	[6]
Average Principal Balance	1,817	[3],[4]	846	[3],[5]	1,817	[3],[4]	846	[3],[5]
Interest Income Recognized	1	[3],[4]	3	[3],[5]	1	[3],[4]	10	[3],[5]
Cash-Basis Interest Income Recognized		[3],[4]		[3],[5]		[3],[4]		[3],[5]

[1] Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

[2] Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal

[3] This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

[4] The table above does not include the recorded investment of $62 thousand of impaired leases without a related Allowance.

[5] The table above does not include the recorded investment of $223 thousand of impaired leases without a related allowance for loan and lease losses.

[6] The table above does not include the recorded investment of $168 thousand of impaired leases without a related Allowance.

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Outstanding Principal Balance and Related Carrying Amount of Credit-Impaired Loans (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Outstanding principal balance	$ 15,975		$ 19,527
Carrying amount	$ 10,622	[1]	$ 12,128	[1]

[1] Includes $149 thousand and $319 thousand of purchased credit-impaired loans as of September 30, 2013 and December 31, 2012, respectively, for which the Bank could not estimate the timing or amount of expected cash flows to be collected at acquisition, and for which no accretable yield is recognized. Additionally, the table above includes $90 thousand of purchased credit-impaired loans as of both September 30, 2013 and December 31, 2012, which subsequently became non-performing, which are disclosed in Note 5C, above, and which also have no accretable yield.

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Stock-Based Compensation

9 Months Ended

Sep. 30, 2013

Stock-Based Compensation

Note 9 - Stock-Based Compensation

A. General Information

The Corporation permits the issuance of stock options, dividend equivalents, performance awards, stock appreciation rights, restricted stock and/or restricted stock units to employees and directors of the Corporation under several plans. The terms and conditions of awards under the plans are determined by the Corporation’s Compensation Committee.

Prior to April 25, 2007, all shares authorized for grant as stock-based compensation were limited to grants of stock options. On April 25, 2007, the shareholders approved the Corporation’s “2007 Long-Term Incentive Plan” (the “2007 LTIP”) under which a total of 428,996 shares of the Corporation’s common stock were made available for award grants. On April 28, 2010, the shareholders approved the Corporation’s “2010 Long Term Incentive Plan” (“2010 LTIP”) under which a total of 445,002 shares of the Corporation’s common stock were made available for award grants.

The equity awards granted under the 2007 and 2010 LTIPs were authorized to be in the form of, among others, options to purchase the Corporation’s common stock, restricted stock awards (“RSAs”) and performance stock awards (“PSAs”).

The fair value of an RSA, when granted, is based on the closing price on the day preceding the date of the grant.

The PSAs that have been granted to date vest based on the Corporation’s total shareholder return relative to the performance of the NASDAQ Community Bank Index for the respective period. The amount of PSAs earned will not exceed 100% of the PSAs awarded. The fair value of a PSA, when granted, is calculated using the Monte Carlo Simulation method.

B. Stock Options

Stock-based compensation cost is measured at the grant date, based on the fair value of the award and is recognized as an expense over the vesting period. The fair value of stock option grants is determined using the Black-Scholes pricing model. The assumptions necessary for the calculation of the fair value are expected life of options, annual volatility of stock price, risk-free interest rate and annual dividend yield.

The following table provides information about options outstanding for the three months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Options outstanding, June 30, 2013		688,476		$	20.69	$	4.69
Granted		11,475		$	21.24	$	4.83
Forfeited		—		$	—	$	—
Expired		(250	)	$	22.00	$	4.90
Exercised		(39,600	)	$	20.45	$	4.64
Options outstanding, September 30, 2013		660,101		$	20.72	$	4.70

The following table provides information about options outstanding for the nine months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Options outstanding, December 31, 2012		784,226		$	20.40	$	4.62
Granted		11,475		$	21.24	$	4.83
Forfeited		(650	)	$	19.65	$	4.62
Expired		(250	)	$	22.00	$	4.90
Exercised		(134,700	)	$	18.93	$	4.22
Options outstanding, September 30, 2013		660,101		$	20.72	$	4.70

The following table provides information about unvested options for the three months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Unvested options, June 30, 2013		80,106		$	19.89	$	4.65
Granted		11,475		$	21.24	$	4.83
Vested		(61,435	)	$	20.93	$	4.79
Forfeited		—		$	—	$	—
Unvested options, September 30, 2013		30,146		$	18.27	$	4.42

The following table provides information about unvested options for the nine months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Unvested options, December 31, 2012		80,756		$	19.89	$	4.65
Granted		11,475		$	21.24	$	4.83
Vested		(61,435	)	$	20.93	$	4.79
Forfeited		(650	)	$	19.65	$	4.62
Unvested options, September 30, 2013		30,146		$	18.27	$	4.42

For the three and nine months ended September 30, 2013, the Corporation recognized $65 thousand and $153 thousand, respectively, of expense related to stock options. As of September 30, 2013, the total not-yet-recognized compensation expense of unvested stock options was $89 thousand. This expense will be recognized over a weighted average period of 0.9 years.

Proceeds, related tax benefits realized from options exercised and intrinsic value of options exercised during the three months ended September 30, 2013 and 2012 are detailed below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands)	2013		2012		2013		2012
Proceeds from exercise of stock options	$	810	$	162	$	2,550	$	1,362
Related tax benefit recognized		75		27		231		107
Net proceeds of options exercised	$	885	$	189	$	2,781	$	1,469
Intrinsic value of options exercised	$	215	$	38	$	661	$	269

The following table provides information about options outstanding and exercisable at September 30, 2013:

(dollars in thousands, except exercise price)	Outstanding		Exercisable
Number of shares		660,101		629,955
Weighted average exercise price	$	20.72	$	20.83
Aggregate intrinsic value	$	4,127	$	3,865
Weighted average contractual term in years		3.3		3.1

C. Restricted Stock Awards and Performance Stock Awards

The Corporation has granted RSAs and PSAs under the 2007 LTIP and 2010 LTIP Plans.

The compensation expense for the RSAs is measured based on the market price of the stock on the day prior to the grant date and is recognized on a straight line basis over the vesting period. Stock restrictions are subject to alternate vesting for death and disability and retirement.

For the three and nine months ended September 30, 2013, the Corporation recognized $34 thousand and $163 thousand, respectively, of expense related to the Corporation’s RSAs. As of September 30, 2013, there was $570 thousand of unrecognized compensation cost related to RSAs. This cost will be recognized over a weighted average period of 1.8 years.

For the three and nine months ended September 30, 2013, the Corporation recorded excess tax benefits to additional paid in capital of $8 thousand and $12 thousand related to the vesting of restricted stock awards.

The following table details the unvested RSAs for the three and nine months ended September 30, 2013:

	Three Months  Ended September 30, 2013					Nine Months  Ended September 30, 2013
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value
Beginning balance		46,815		$	18.89		56,631		$	19.15
Granted		6,665			22.50		6,665			22.50
Vested		(2,980	)		16.78		(9,115	)		19.20
Forfeited		—			—		(3,681	)		20.38
Ending balance		50,500		$	19.49		50,500		$	19.49

The compensation expense for PSAs is measured based on the grant date fair value as calculated using the Monte Carlo Simulation method.

For the three and nine months ended September 30, 2013, the Corporation recognized $46 thousand and $299 thousand of expense related to the PSAs. As of September 30, 2013, there was $1.7 million of unrecognized compensation cost related to PSAs. This cost will be recognized over a weighted average period of 2.1 years.

For the three and nine months ended September 30, 2013, the Corporation recorded excess tax benefits to additional paid in capital of $320 thousand and $320 thousand related to the vesting of performance stock awards.

The following table details the unvested PSAs for the three and nine months ended September 30, 2013:

	Three Months  Ended September 30, 2013					Nine Months  Ended September 30, 2013
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value
Beginning balance		184,191		$	10.62		185,766		$	10.62
Granted		75,714			13.36		75,714			13.36
Vested		(54,925	)		9.64		(54,925	)		9.64
Forfeited		—			—		(1,575	)		10.77
Ending balance		204,980		$	11.90		204,980		$	11.90

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Schedule of Wealth Management Segment Information (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Assets under management, administration, supervision and brokerage	$ 7,082.9	$ 6,663.2

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Amortized Cost and Estimated Fair Value of Available for Sale Investment Securities (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 320,030	$ 311,747
Gross Unrealized Gains	2,787	5,081
Gross Unrealized Losses	(2,900)	(214)
Estimated Fair Value	319,917	316,614
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	102
Gross Unrealized Losses	(1)
Estimated Fair Value	101
Obligations of U.S. government and agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	92,128	73,183
Gross Unrealized Gains	247	796
Gross Unrealized Losses	(1,431)	(107)
Estimated Fair Value	90,944	73,872
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,273	30,244
Gross Unrealized Gains	115	199
Gross Unrealized Losses	(323)	(59)
Estimated Fair Value	40,065	30,384
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	123,161	128,537
Gross Unrealized Gains	1,909	3,302
Gross Unrealized Losses	(787)	(13)
Estimated Fair Value	124,283	131,826
Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	47,412	62,116
Gross Unrealized Gains	268	622
Gross Unrealized Losses	(357)	(35)
Estimated Fair Value	47,323	62,703
Other Investees
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	16,954	17,667
Gross Unrealized Gains	248	162
Gross Unrealized Losses	(1)
Estimated Fair Value	$ 17,201	$ 17,829

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Schedule of Related Tax Benefits Realized from Options Exercised and Intrinsic Value of Options Exercised (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from exercise of stock options	$ 810	$ 162	$ 2,550	$ 1,362
Related tax benefit recognized	75	27	231	107
Net proceeds of options exercised	885	189	2,781	1,469
Intrinsic value of options exercised	$ 215	$ 38	$ 661	$ 269

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Outstanding Principal Balance and Related Carrying Amount of Credit-Impaired Loans (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Credit-impaired loans not expected to be collected at acquisition	$ 149	$ 319
Purchased credit-impaired loans	$ 90	$ 90

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Detail Segment Information

The following tables detail segment information for the three and nine months ended September 30, 2013 and 2012:

	Three Months Ended September 30, 2013									Three Months Ended September 30, 2012
(dollars in thousands)	Banking			Wealth Management			Consolidated			Banking			Wealth Management			Consolidated
Net interest income	$	18,532		$	1		$	18,533		$	15,950		$	1		$	15,951
Less: loan loss provision		959			—			959			1,000			—			1,000
Net interest income after loan loss provision		17,573			1			17,574			14,950			1			14,951
Other income:
Fees for wealth management services		—			8,635			8,635			—			7,993			7,993
Service charges on deposit accounts		627			—			627			634			—			634
Loan servicing and other fees		481			—			481			432			—			432
Net gain on sale of loans		578			—			578			1,837			—			1,837
Net gain on sale of available for sale securities		—			—			—			416			—			416
Net loss on sale of other real estate owned		(1	)		—			(1	)		(45	)		—			(45	)
BOLI income		72			—			72			107			—			107
Other operating income		947			48			995			833			41			874
Total other income		2,704			8,683			11,387			4,214			8,034			12,248
Other expenses:
Salaries & wages		5,986			3,026			9,012			5,799			2,904			8,703
Employee benefits		1,196			700			1,896			1,243			660			1,903
Occupancy & equipment		1,267			379			1,646			1,124			364			1,488
Amortization of intangible assets		78			580			658			71			598			669
Professional fees		609			27			636			537			72			609
Other operating expenses		4,812			663			5,475			4,594			923			5,517
Total other expenses		13,948			5,375			19,323			13,368			5,521			18,889
Segment profit		6,329			3,309			9,638			5,796			2,514			8,310
Intersegment (revenues) expenses*		(19	)		19			—			(128	)		128			—
Pre-tax segment profit after eliminations	$	6,310		$	3,328		$	9,638		$	5,668		$	2,642		$	8,310
% of segment pre-tax profit after eliminations		65.5	%		34.5	%		100.0	%		68.2	%		31.8	%		100.0	%
Segment assets (dollars in millions)	$	2,017		$	42		$	2,059		$	1,769		$	46		$	1,815

* Inter-segment revenues consist of rental payments, interest on deposits and management fees.

	Nine Months Ended September 30, 2013									Nine Months Ended September 30, 2012
(dollars in thousands)	Banking			Wealth Management			Consolidated			Banking			Wealth Management			Consolidated
Net interest income	$	53,863		$	2		$	53,865		$	47,836		$	3		$	47,839
Less: loan loss provision		2,763			—			2,763			3,003			—			3,003
Net interest income after loan loss provision		51,100			2			51,102			44,833			3			44,836
Other income:
Fees for wealth management services		—			26,078			26,078			—			21,433			21,433
Service charges on deposit accounts		1,807			—			1,807			1,823			—			1,823
Loan servicing and other fees		1,380			—			1,380			1,303			—			1,303
Net gain on sale of loans		3,588			—			3,588			4,311			—			4,311
Net gain on sale of available for sale securities		2			—			2			1,132			—			1,132
Net loss on sale of other real estate owned		(194	)		—			(194	)		(86	)		—			(86	)
BOLI income		270			—			270			330			—			330
Other operating income		3,051			138			3,189			2,903			67			2,970
Total other income		9,904			26,216			36,120			11,716			21,500			33,216
Other expenses:
Salaries & wages		17,898			9,010			26,908			16,294			7,989			24,283
Employee benefits		4,235			2,198			6,433			4,239			1,847			6,086
Occupancy & equipment		3,994			1,130			5,124			3,001			1,257			4,258
Amortization of intangible assets		237			1,741			1,978			218			1,520			1,738
Professional fees		1,732			143			1,875			1,672			165			1,837
Other operating expenses		15,082			2,682			17,764			13,602			2,008			15,610
Total other expenses		43,178			16,904			60,082			39,026			14,786			53,812
Segment profit		17,826			9,314			27,140			17,523			6,717			24,240
Intersegment (revenues) expenses*		(323	)		323			—			(368	)		368			—
Pre-tax segment profit after eliminations	$	17,503		$	9,637		$	27,140		$	17,155		$	7,085		$	24,240
% of segment pre-tax profit after eliminations		64.5	%		35.5	%		100.0	%		70.8	%		29.2	%		100.0	%
Segment assets (dollars in millions)	$	2,017		$	42		$	2,059		$	1,769		$	46		$	1,815

Schedule of Wealth Management Segment Activity

Other segment information:

Wealth Management Segment Information

	(dollars in millions)
	September 30, 2013		December 31, 2012
Assets under management, administration, supervision and brokerage	$	7,082.9	$	6,663.2

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Fair Value of Financial Instruments

9 Months Ended

Sep. 30, 2013

Fair Value of Financial Instruments

Note 18 - Fair Value of Financial Instruments

FASB ASC 825, “Disclosures about Fair Value of Financial Instruments” requires disclosure of the fair value information about financial instruments, whether or not recognized in the balance sheet, for which it is practicable to estimate such value. In cases where quoted market prices are not available, fair values are based on estimates using present value or other market value techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instrument. The aggregate fair value amounts presented below do not represent the underlying value of the Corporation.

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

The carrying amounts reported in the balance sheet for cash and cash equivalents approximate their fair values.

Investment Securities

Estimated fair values for investment securities are generally valued by an independent third party based on market data, utilizing pricing models that vary by asset and incorporate available trade, bid and other market information. Management reviews, annually, the process utilized by its independent third-party valuation experts. On a quarterly basis, Management tests the validity of the prices provided by the third party by selecting a representative sample of the portfolio and obtaining actual trade results, or if actual trade results are not available, competitive broker pricing. See Note 4 of the Notes to Consolidated Financial Statements for more information.

Loans Held for Sale

The fair value of loans held for sale is based on pricing obtained from secondary markets.

Net Portfolio Loans and Leases

For variable-rate loans that reprice frequently and which have no significant change in credit risk, estimated fair values are based on carrying values. Fair values of certain mortgage loans and consumer loans are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality and is indicative of an entry price. The estimated fair value of nonperforming loans is based on discounted estimated cash flows as determined by the internal loan review of the Bank or the appraised market value of the underlying collateral, as determined by independent third party appraisers. This technique does not reflect an exit price.

Mortgage Servicing Rights

The fair value of the MSRs for these periods was determined using a proprietary third-party valuation model that calculates the present value of estimated future servicing income. The model incorporates assumptions that market participants use in estimating future net servicing income, including estimates of prepayment speeds and discount rates. Due to the proprietary nature of the valuation model used, the Corporation classifies the value of MSRs as using Level 3 inputs.

Other Assets

The carrying amount of accrued interest receivable, income taxes receivable and other investments approximates fair value.

Deposits

The estimated fair values disclosed for noninterest-bearing demand deposits, savings, NOW accounts, and market rate accounts are, by definition, equal to the amounts payable on demand at the reporting date (i.e., their carrying amounts). Fair values for certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of expected monthly maturities on the certificate of deposit. FASB Codification 825 defines the fair value of demand deposits as the amount payable on demand as of the reporting date and prohibits adjusting estimated fair value from any value derived from retaining those deposits for an expected future period of time.

Short-term borrowings

The carrying amount of short-term borrowings, which include overnight repurchase agreements, fed funds and FHLB advances with original maturity of one year or less, approximates their fair value.

Long-term FHLB Advances and Other Borrowings

The fair value of long-term FHLB advances (with original maturities of greater than one year) and other borrowings, which include an $7.6 million term loan from a correspondent bank, is established using a discounted cash flow calculation that applies interest rates currently being offered on mid-term and long term borrowings.

Other Liabilities

The carrying amounts of accrued interest payable and other accrued payables approximate fair value.

Off-Balance Sheet Instruments

Estimated fair values of the Corporation’s commitments to extend credit, standby letters of credit and financial guarantees are not included in the table below as their carrying values generally approximate their fair values. These instruments generate fees that approximate those currently charged to originate similar commitments.

As of the dates indicated, the carrying amount and estimated fair value of the Corporation’s financial instruments are as follows:

	Fair Value Hierarchy Level*	As of September 30, 2013				As of December 31 2012
(dollars in thousands)		Carrying Amount		Estimated Fair  Value		Carrying Amount		Estimated Fair  Value
Financial assets:
Cash and cash equivalents	Level 1	$	96,161	$	96,161	$	175,686	$	175,686
Investment securities, available for sale	See Note 17		319,917		319,917		316,614		316,614
Investment securities, trading	Level 2		2,357		2,357		1,447		1,447
Loans held for sale	Level 2		1,284		1,284		3,412		3,482
Net portfolio loans and leases	Level 3		1,484,988		1,473,844		1,384,031		1,412,619
Mortgage servicing rights	Level 3		4,744		5,622		4,491		4,638
Other assets	Level 3		22,629		22,629		21,735		21,735
Total financial assets		$	1,932,080	$	1,921,814	$	1,907,416	$	1,936,221
Financial liabilities:
Deposits	Level 2	$	1,550,656	$	1,550,683	$	1,634,682	$	1,635,374
Short-term borrowings	Level 2		75,588		75,588		9,403		9,403
Long-term FHLB advances and other borrowings	Level 2		191,645		191,190		161,315		164,273
Other liabilities	Level 2		23,323		23,323		26,921		26,921
Total financial liabilities		$	1,841,212	$	1,840,784	$	1,832,321	$	1,835,971

* see Note 17 for a description of fair value hierarchy levels

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Fair Value Measurement

9 Months Ended

Sep. 30, 2013

Fair Value Measurement

Note 17 - Fair Value Measurement

The following disclosures are made in conjunction with the application of fair value measurements.

FASB ASC 820 “Fair Value Measurement” establishes a fair value hierarchy based on the nature of data inputs for fair value determinations, under which the Corporation is required to value each asset using assumptions that market participants would utilize to value that asset. When the Corporation uses its own assumptions, it is required to disclose additional information about the assumptions used and the effect of the measurement on earnings or the net change in assets for the period.

The Corporation’s investment securities available for sale, which generally include state and municipal securities, U.S. government agencies and mortgage-related securities, are reported at fair value. These securities are valued by an independent third party. The third party’s evaluations are based on market data. They utilize evaluated pricing models that vary by asset and incorporate available trade, bid and other market information. For securities that do not trade on a daily basis, their pricing applications apply available information such as benchmarking and matrix pricing. The market inputs normally sought in the evaluation of securities include benchmark yields, reported trades, broker/dealer quotes (only obtained from market makers or broker/dealers recognized as market participants), issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data. For certain securities, additional inputs may be used or some market inputs may not be applicable. Inputs are prioritized differently on any given day based on market conditions.

U.S. Government agencies are evaluated and priced using multi-dimensional relational models and option-adjusted spreads. State and municipal securities are evaluated on a series of matrices including reported trades and material event notices. Mortgage-related securities are evaluated using matrix correlation to treasury or floating index benchmarks, prepayment speeds, monthly payment information and other benchmarks. Other available for sale investments are evaluated using a broker-quote based application, including quotes from issuers.

The value of the investment portfolio is determined using three broad levels of inputs:

Level 1 - Quoted prices in active markets for identical securities.

Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3 - Instruments whose significant value drivers are unobservable.

These levels are not necessarily an indication of the risks or liquidity associated with these investments. The following tables summarize the assets at September 30, 2013 and December 31, 2012 that are recognized on the Corporation’s balance sheet using fair value measurement determined based on the differing levels of input.

Fair value of assets measured on a recurring and non-recurring basis as of September 30, 2013:

(dollars in millions)	Total		Level 1		Level 2		Level 3
Assets Measured at Fair Value on a Recurring Basis:
Investment securities available for sale:
U.S. Treasury securities	$	0.1	$	0.1	$	—	$	—
Obligations of the U.S. government agencies		90.9		—		90.9		—
Obligations of state & political subdivisions		40.1		—		40.1		—
Mortgage-backed securities		124.3		—		124.3		—
Collateralized mortgage obligations		47.3		—		47.3		—
Mutual funds		11.5		11.5		—		—
Other investments		5.7		—		5.7		—
Total investment securities available for sale		319.9		11.6		308.3		—
Trading securities		2.4		—		2.4		—
Total assets measured on a recurring basis at fair value	$	322.3	$	11.6	$	310.7	$	—
Assets Measured at Fair Value on a Non-Recurring Basis
Mortgage servicing rights	$	0.8	$	—	$	—	$	0.8
Impaired loans and leases		18.1		—		—		18.1
Other real estate owned (“OREO”)		1.3		—		—		1.3
Total assets measured on a non-recurring basis at fair value	$	20.2	$	—	$	—	$	20.2

Fair value of assets measured on a recurring and non-recurring basis as of December 31, 2012:

(dollars in millions)	Total		Level 1		Level 2		Level 3
Assets Measured at Fair Value on a Recurring Basis:
Investment securities available for sale:
Obligations of the U.S. government agencies	$	73.9	$	—	$	73.9	$	—
Obligations of state & political subdivisions		30.4		—		30.4		—
Mortgage-backed securities		131.8		—		131.8		—
Collateralized mortgage obligations		62.7		—		62.7		—
Mutual funds		13.6		13.6		—		—
Other investments		4.2		—		4.2		—
Total investment securities available for sale		316.6		13.6		303.0		—
Trading securities		1.4		—		1.4		—
Total assets measured on a recurring basis at fair value	$	318.0	$	13.6	$	304.4	$	—
Assets Measured at Fair Value on a Non-Recurring Basis
Mortgage servicing rights	$	0.9	$	—	$	—	$	0.9
Impaired loans and leases		19.7		—		—		19.7
OREO		0.9		—		—		0.9
Total assets measured on a non-recurring basis at fair value	$	21.5	$	—	$	—	$	21.5

During the three and nine months ended September 30, 2013 a net increase of $256 thousand and a net decrease of $188 thousand, respectively, were recorded in the Allowance as a result of adjusting the carrying value and estimated fair value of the impaired loans in the above tables. As it relates to the fair values of assets measured on a recurring basis, there have been no transfers between levels during the nine months ended September 30, 2013.

Impaired Loans

The Corporation evaluates and values 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 the Corporation. 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.

The Corporation has an appraisal policy in which an appraisal is obtained for a commercial loan at the point at which the loan either becomes nonperforming or is downgraded to a substandard or worse classification. For consumer loans, the Corporation obtains updated appraisals when a loan becomes 90 days past due or when it receives other information that may indicate possible impairment. Based on the appraisals obtained by the Corporation, an appropriate Allowance is allocated to the particular loan.

Other Real Estate Owned

Other real estate owned consists of properties acquired as a result of foreclosures and deeds in-lieu-of foreclosure. Properties are classified as OREO and are reported at the lower of cost or fair value less cost to sell, and are classified as Level 3 in the fair value hierarchy.

Mortgage Servicing Rights

MSRs do not trade in an active, open market with readily observable prices. Accordingly, the Corporation obtains the fair value of the MSRs using a third-party pricing provider. The provider determines the fair value by discounting projected net servicing cash flows of the remaining servicing portfolio. The valuation model used by the provider considers market loan prepayment predictions and other economic factors which the Corporation considers to be significant unobservable inputs. The fair value of MSRs is mostly affected by changes in mortgage interest rates since rate changes cause the loan prepayment acceleration factors to increase or decrease. All assumptions are market driven. The Corporation has a sufficient understanding of the third party service’s valuation models, assumptions and inputs used in determining the fair value of MSRs to enable management to maintain an appropriate system of internal control. Mortgage servicing rights are classified within Level 3 of the fair value hierarchy as the valuation is model driven and primarily based on unobservable inputs.

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Fair Value Of Financial Instruments - Additional Information (Detail) (Term Loan, USD $) In Millions, unless otherwise specified	Sep. 30, 2013
Term Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Term loan	$ 7.6

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Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed, Davidson Trust Company (Detail) (USD $) In Thousands, unless otherwise specified			1 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	May 15, 2012 Davidson Trust Company	May 15, 2012 Davidson Trust Company Customer relationships	May 15, 2012 Davidson Trust Company Non competition agreements	May 15, 2012 Davidson Trust Company brand
Business Acquisition [Line Items]
Cash			$ 9,450
Contingent payment liability			1,050
Value of consideration			10,500
Cash operating accounts			1,433
Other assets			201
Intangible asset				3,720	1,385	970
Premises and equipment			117
Deferred tax asset			839
Total assets			8,665
Deferred tax liability			2,125
Miscellaneous liabilities			885
Total liabilities			3,010
Net assets acquired			5,655
Goodwill resulting from acquisition of DTC	$ 32,843	$ 32,897	$ 4,845

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Borrowings (Tables)

9 Months Ended

Sep. 30, 2013

Summary of Short-Term Borrowings

A summary of short-term borrowings is as follows:

(dollars in thousands)	September 30, 2013		December 31, 2012
Overnight fed funds	$	25,000	$	—
Short-term FHLB advances		38,000		—
Repurchase agreements		12,588		9,403
Total short-term borrowings	$	75,588	$	9,403

Information Concerning Short-Term Borrowings

The following table sets forth information concerning short-term borrowings:

(dollars in thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Balance at period-end	$	75,588		$	19,029		$	75,588		$	19,029
Maximum amount outstanding at any month-end		75,588			19,029			75,588			19,029
Average balance outstanding during the period		14,995			13,695			13,455			13,621
Weighted-average interest rate:
As of period-end		0.33	%		0.44	%		0.34	%		0.44	%
Paid during the period		0.15	%		0.16	%		0.12	%		0.17	%

Maturity of Long-Term FHLB Advances and Other Borrowings

The following table presents the remaining periods until maturity of the long-term FHLB advances and other borrowings:

(dollars in thousands)	September 30, 2013		December 31, 2012
Within one year	$	3,903	$	35,458
Over one year through five years		172,742		104,244
Over five years through ten years		15,000		21,613
Total	$	191,645	$	161,315

Rate and Maturity Information on Long-Term Federal Home Loan Bank Advance and Other Borrowings

The following table presents rate and maturity information on long-term FHLB advances and other borrowings:

(dollars in thousands)	Maturity Range(1)				Weighted Average Rate			Interest Rate						Balance
Description	From		To					From			To			September 30, 2013		December 31, 2012
Fixed amortizing		04/08/15		04/08/15		3.61	%		3.61	%		3.61	%	$	2,485	$	4,285
Adjustable amortizing		12/31/16		12/31/16		3.25	%		3.25	%		3.25	%		7,637		9,400
Bullet maturity - fixed rate		03/23/15		12/19/19		1.40	%		0.58	%		2.44	%		135,000		90,000
Bullet maturity - variable rate		06/25/15		11/18/17		0.46	%		0.46	%		0.46	%		25,000		15,000
Convertible-fixed(2)		01/03/18		08/20/18		2.47	%		2.21	%		2.62	%		21,523		42,630
Total														$	191,645	$	161,315

⁽¹⁾ Maturity range refers to September 30, 2013 balances

⁽²⁾ FHLB advances whereby the FHLB has the option, at predetermined times, to convert the fixed interest rate to an adjustable interest rate indexed to the London Interbank Offered Rate (“LIBOR”). The Corporation has the option to prepay these advances, without penalty, if the FHLB elects to convert the interest rate to an adjustable rate. As of September 30, 2013, substantially all the FHLB advances with this convertible feature are subject to conversion in fiscal 2013. These advances are included in the maturity ranges in which they mature, rather than the period in which they are subject to conversion.

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Goodwill and Other Intangibles (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Goodwill and Intangible Assets Related to Acquisitions

The Corporation’s goodwill and intangible assets related to the acquisitions of Lau Associates LLC (“Lau”) in July, 2008, First Keystone Financial, Inc. (“FKF”) in July, 2010, the Private Wealth Management Group of the Hershey Trust Company (“PWMG”) in May, 2011, DTC in May, 2012 and the FBD Transaction in November, 2012 are detailed below:

(dollars in thousands)	Balance December 31, 2012		Additions/ Adjustments			Amortization			Balance September  30, 2013		Amortization Period
Goodwill - Wealth segment	$	20,466	$	(54	)	$	—		$	20,412	Indefinite
Goodwill - Banking segment		12,431		—			—			12,431	Indefinite
Total	$	32,897	$	(54	)	$	—		$	32,843
Core deposit intangible	$	1,654	$	—		$	(237	)	$	1,417	10 Years
Customer relationships		14,890		—			(971	)		13,919	10 to 20 Years
Non compete agreements		4,244		—			(770	)		3,474	5 to 5 1/2 Years
Trade name		1,210		—			—			1,210	Indefinite
Total	$	21,998	$	—		$	(1,978	)	$	20,020
Grand total	$	54,895	$	(54	)	$	(1,978	)	$	52,863

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Amount of Investment Securities Available for Sale in Unrealized Loss Position (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	$ 138,802	$ 53,426
Less than 12 Months Unrealized Loss	(2,883)	(214)
12 Months or Longer Fair Value	1,606
12 Months or Longer Unrealized Loss	(17)
Total Fair Value	140,408	53,426
Total Unrealized Loss	(2,900)	(214)
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	101
Less than 12 Months Unrealized Loss	(1)
Total Fair Value	101
Total Unrealized Loss	(1)
Obligations of U.S. government and agencies
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	53,631	20,032
Less than 12 Months Unrealized Loss	(1,431)	(107)
Total Fair Value	53,631	20,032
Total Unrealized Loss	(1,431)	(107)
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	19,108	10,752
Less than 12 Months Unrealized Loss	(310)	(59)
12 Months or Longer Fair Value	515
12 Months or Longer Unrealized Loss	(13)
Total Fair Value	19,623	10,752
Total Unrealized Loss	(323)	(59)
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	43,210	12,602
Less than 12 Months Unrealized Loss	(787)	(13)
Total Fair Value	43,210	12,602
Total Unrealized Loss	(787)	(13)
Collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	20,853	10,040
Less than 12 Months Unrealized Loss	(353)	(35)
12 Months or Longer Fair Value	1,091
12 Months or Longer Unrealized Loss	(4)
Total Fair Value	21,944	10,040
Total Unrealized Loss	(357)	(35)
Other Investees
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	1,899
Less than 12 Months Unrealized Loss	(1)
Total Fair Value	1,899
Total Unrealized Loss	$ (1)

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Investment Securities (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Amortized Cost and Estimated Fair Value of Investment Securities Available for Sale

The amortized cost and estimated fair value of investment securities available for sale are as follows:

As of September 30, 2013

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
U.S. Treasury securities	$	102	$	—	$	(1	)	$	101
Obligations of U.S. government agencies		92,128		247		(1431	)		90,944
Obligations of state & political subdivisions		40,273		115		(323	)		40,065
Mortgage-backed securities		123,161		1,909		(787	)		124,283
Collateralized mortgage obligations		47,412		268		(357	)		47,323
Other investments		16,954		248		(1	)		17,201
Total	$	320,030	$	2,787	$	(2,900	)	$	319,917

As of December 31, 2012

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Obligations of U.S. government agencies	$	73,183	$	796	$	(107	)	$	73,872
Obligations of state & political subdivisions		30,244		199		(59	)		30,384
Mortgage-backed securities		128,537		3,302		(13	)		131,826
Collateralized mortgage obligations		62,116		622		(35	)		62,703
Other investments		17,667		162		—			17,829
Total	$	311,747	$	5,081	$	(214	)	$	316,614

Schedule of Amount of Investment Securities Available for Sale in Unrealized Loss Position

The following tables detail the amount of investment securities available for sale that were in an unrealized loss position as of the dates indicated:

As of September 30, 2013:

(dollars in thousands)	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Treasury securities	$	101	$	(1	)	$	—	$	—		$	101	$	(1	)
Obligations of U.S. Government agencies		53,631		(1,431	)		—		—			53,631		(1,431	)
Obligations of state & political subdivisions		19,108		(310	)		515		(13	)		19,623		(323	)
Mortgage-backed securities		43,210		(787	)		—		—			43,210		(787	)
Collateralized mortgage obligations		20,853		(353	)		1,091		(4	)		21,944		(357	)
Other investments		1,899		(1	)		—		—			1,899		(1	)
Total	$	138,802	$	(2,883	)	$	1,606	$	(17	)	$	140,408	$	(2,900	)

As of December 31, 2012:

(dollars in thousands)	Less than 12 Months					12 Months or Longer				Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Obligations of U.S. Government agencies	$	20,032	$	(107	)	$	—	$	—	$	20,032	$	(107	)
Obligations of state & political subdivisions		10,752		(59	)		—		—		10,752		(59	)
Mortgage-backed securities		12,602		(13	)		—		—		12,602		(13	)
Collateralized mortgage obligations		10,040		(35	)		—		—		10,040		(35	)
Total	$	53,426	$	(214	)	$	—	$	—	$	53,426	$	(214	)

Schedule of Amortized Cost and Fair Value of Investment Securities Available for Sale

The amortized cost and fair value of investment securities available for sale as of September 30, 2013 and December 31, 2012, by contractual maturity, are shown below:

	September 30, 2013				December 31, 2012
(dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	9,046	$	9,049	$	10,571	$	10,590
Due after one year through five years		53,240		53,248		38,056		38,171
Due after five years through ten years		59,537		58,144		40,635		40,714
Due after ten years		14,291		14,281		18,415		19,044
Mortgage-related securities*		170,573		171,606		190,653		194,529
Total maturing investments		306,687		306,328		298,330		303,048
Bond mutual funds and other non-maturity investments		13,343		13,589		13,417		13,566
Total	$	320,030	$	319,917	$	311,747	$	316,614

* Expected maturities of mortgage-related securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

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Balance of Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Financing Receivable, Modifications [Line Items]
TDRs included in nonperforming loans and leases	$ 2,628	$ 3,106
TDRs in compliance with modified terms	8,947	8,008
Total TDRs	$ 11,575	$ 11,114

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Maturity of Long-Term FHLB Advances and Other Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Total	$ 191,645	$ 161,315
Federal Home Loan Bank Advances And Other Borrowings
Within one year	3,903	35,458
Over one year through five years	172,742	104,244
Over five years through ten years	15,000	21,613
Total	$ 191,645	$ 161,315

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Carrying Value of Loans and Leases by Portfolio Segment Based on Credit Quality Indicators used to Allocate Allowance for Loan and Lease Losses (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	$ 1,500,015	$ 1,398,456
Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	945,454	833,141
Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	6,036	9,788
Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	13,595	21,957
Pass, Special Mention and Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	965,085	864,886
Performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	529,483	526,981
Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	5,447	6,589
Performing and Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	534,930	533,570
Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	622,771	546,358
Commercial mortgage | Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	615,742	538,470
Commercial mortgage | Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	3,771	2,215
Commercial mortgage | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	3,258	5,673
Commercial mortgage | Pass, Special Mention and Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	622,771	546,358
Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	39,055	26,908
Construction | Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	35,518	16,504
Construction | Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses		1,317
Construction | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	3,537	9,087
Construction | Pass, Special Mention and Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	39,055	26,908
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	303,259	291,620
Commercial and industrial | Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	294,194	278,167
Commercial and industrial | Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	2,265	6,256
Commercial and industrial | Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	6,800	7,197
Commercial and industrial | Pass, Special Mention and Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	303,259	291,620
Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	291,645	288,212
Residential mortgage | Performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	287,807	284,464
Residential mortgage | Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	3,838	3,748
Residential mortgage | Performing and Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	291,645	288,212
Home equity lines and loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	187,634	194,861
Home equity lines and loans | Performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	186,090	192,069
Home equity lines and loans | Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	1,544	2,792
Home equity lines and loans | Performing and Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	187,634	194,861
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	17,572	17,666
Consumer | Performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	17,523	17,659
Consumer | Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	49	7
Consumer | Performing and Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	17,572	17,666
Leases
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	38,079	32,831
Leases | Performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	38,063	32,789
Leases | Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	16	42
Leases | Performing and Non-performing
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses	$ 38,079	$ 32,831

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Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2013

Carrying Value and Estimated Fair Value of Assets

As of the dates indicated, the carrying amount and estimated fair value of the Corporation’s financial instruments are as follows:

	Fair Value Hierarchy Level*	As of September 30, 2013				As of December 31 2012
(dollars in thousands)		Carrying Amount		Estimated Fair  Value		Carrying Amount		Estimated Fair  Value
Financial assets:
Cash and cash equivalents	Level 1	$	96,161	$	96,161	$	175,686	$	175,686
Investment securities, available for sale	See Note 17		319,917		319,917		316,614		316,614
Investment securities, trading	Level 2		2,357		2,357		1,447		1,447
Loans held for sale	Level 2		1,284		1,284		3,412		3,482
Net portfolio loans and leases	Level 3		1,484,988		1,473,844		1,384,031		1,412,619
Mortgage servicing rights	Level 3		4,744		5,622		4,491		4,638
Other assets	Level 3		22,629		22,629		21,735		21,735
Total financial assets		$	1,932,080	$	1,921,814	$	1,907,416	$	1,936,221
Financial liabilities:
Deposits	Level 2	$	1,550,656	$	1,550,683	$	1,634,682	$	1,635,374
Short-term borrowings	Level 2		75,588		75,588		9,403		9,403
Long-term FHLB advances and other borrowings	Level 2		191,645		191,190		161,315		164,273
Other liabilities	Level 2		23,323		23,323		26,921		26,921
Total financial liabilities		$	1,841,212	$	1,840,784	$	1,832,321	$	1,835,971

* see Note 17 for a description of fair value hierarchy levels

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Components of Deposits (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Deposits [Line Items]
Savings accounts	$ 137,431	$ 129,091
Interest-bearing checking accounts	244,826	270,279
Market-rate accounts	548,011	559,470
Wholesale non-maturity deposits	57,195	45,162
Wholesale time deposits	23,127	12,421
Time deposits	145,119	218,586
Total interest-bearing deposits	1,155,709	1,235,009
Non-interest-bearing deposits	394,947	399,673
Total deposits	$ 1,550,656	$ 1,634,682

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Amounts Reclassified from Each Component of Accumulated Other Comprehensive (Loss) Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net gain on curtailment of nonqualified pension plan					$ 690
Income before income taxes	9,638		8,310		27,140		24,240
Less: income tax (expense) benefit	3,237		2,885		9,167		8,397
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Accumulated Net Unrealized Investment Gain (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realization of gain on sale of investment securities available for sale			(416)		(2)		(1,132)
Less: income tax (expense) benefit			(146)		(1)		(396)
Net of income tax			(270)		(1)		(736)
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Unfunded pension liability
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of net loss included in net periodic pension costs	463	[1]	488	[1]	1,390	[1]	1,466	[1]
Amortization of prior service cost included in net periodic pension costs	3	[1]	21	[1]	10	[1]	62	[1]
Amortization of transition obligation included in net periodic pension costs			7	[1]			20	[1]
Net gain on curtailment of nonqualified pension plan					(690)
Income before income taxes	466		516		710		1,548
Less: income tax (expense) benefit	163		181		249		703
Net of income tax	$ 303		$ 335		$ 461		$ 845

[1] Accumulated other comprehensive loss components are included in the computation of net periodic pension cost. See Note 10 - Pension and Other Post-Retirement Benefit Plans

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Shareholders' Equity - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended		9 Months Ended				1 Months Ended
	Apr. 27, 2012	Apr. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Aug. 06, 2013	Dec. 31, 2012	Oct. 24, 2013 Subsequent Event
Class of Stock [Line Items]
Regular quarterly dividend paid per share			$ 0.17
Total dividend paid			$ 2,300,000
Shares outstanding as on the date			13,551,438		13,551,438		13,545,713	13,412,690
Regular quarterly dividend payable per share			$ 0.17	$ 0.16	$ 0.51	$ 0.48			$ 0.18
Dividend payable date									Dec. 01, 2013
Dividend payment record date									Nov. 06, 2013
Securities issued aggregate amount		150,000,000
Increase in number of common stock shares issued	850,000
Increase in number of common stock shares issued	1,500,000
Maximum investment allowed under dividend reinvestment and stock purchase plan	120,000
Issued common shares through the plan shares					6,924
Issued common shares through the plan value					161,000
Share-based awards and options exercises, shares			39,600		134,700
Share-based awards and options exercises					$ 2,600,000

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Fair Value of Assets Measured on Recurring and Non-Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	$ 322.3	$ 318.0
Total assets measured at fair value on a non-recurring basis	20.2	21.5
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	0.1
Obligations of the U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	90.9	73.9
Obligations of state and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	40.1	30.4
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	124.3	131.8
Total assets measured at fair value on a non-recurring basis	0.8	0.9
Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	47.3	62.7
Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	11.5	13.6
Other Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	5.7	4.2
Investment Securities Available For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	319.9	316.6
Trading Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	2.4	1.4
Impaired loans and leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value on a non-recurring basis	18.1	19.7
Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value on a non-recurring basis	1.3	0.9
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	11.6	13.6
Level 1 | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	0.1
Level 1 | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	11.5	13.6
Level 1 | Investment Securities Available For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	11.6	13.6
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	310.7	304.4
Level 2 | Obligations of the U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	90.9	73.9
Level 2 | Obligations of state and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	40.1	30.4
Level 2 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	124.3	131.8
Level 2 | Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	47.3	62.7
Level 2 | Other Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	5.7	4.2
Level 2 | Investment Securities Available For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	308.3	303.0
Level 2 | Trading Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured on a recurring basis at fair value	2.4	1.4
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value on a non-recurring basis	20.2	21.5
Level 3 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value on a non-recurring basis	0.8	0.9
Level 3 | Impaired loans and leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value on a non-recurring basis	18.1	19.7
Level 3 | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value on a non-recurring basis	$ 1.3	$ 0.9

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Accounting for Uncertainty in Income Taxes

9 Months Ended

Sep. 30, 2013

Accounting for Uncertainty in Income Taxes

Note 16 - Accounting for Uncertainty in Income Taxes

The Corporation recognizes the financial statement benefit of a tax position only after determining that the Corporation would be more likely than not to sustain the position following an examination. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50% likelihood of being realized upon settlement with the relevant tax authority.

The Corporation is subject to income taxes in the United States federal jurisdiction and multiple state jurisdictions. The Corporation is no longer subject to U.S. federal income tax examination by taxing authorities for years before 2010.

The Corporation’s policy is to record interest and penalties on uncertain tax positions as income tax expense. No interest or penalties were accrued in the three or nine month periods ended September 30, 2013 or 2012. There were no reserves for uncertain income tax positions recorded during the three or nine month periods ended September 30, 2013 or 2012.

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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net unrealized gains (losses) arising during the period, tax expense (benefit)	$ 26	$ 657	$ (1,742)	$ 1,416
Reclassification adjustment for net gains on sales realized in net income, tax expense	0	146	1	396
Unrealized investment gains (losses), tax expense (benefit)	26	166	(1,743)	1,020
Change in fair value of hedging instruments, tax expense	0	0	324	0
Change in unfunded pension liability related to unrealized loss, prior service cost and transition obligation, tax expense	133	146	399	438
Change in unfunded pension liability related to curtailment, tax expense	0	0	627	0
Total Change in unfunded pension liability, tax expense	$ 133	$ 146	$ 1,026	$ 438

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Consolidated Statements of Changes In Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Loss	Retained Earnings
Beginning balance at Dec. 31, 2012	$ 203,564	$ 16,390	$ 89,137	$ (30,745)	$ (10,078)	$ 138,860
Beginning balance (in shares) at Dec. 31, 2012		16,390,608
Net Income	17,973					17,973
Dividends declared, $0.51 per share	(6,877)					(6,877)
Other comprehensive loss, net of tax benefit of $393	(731)				(731)
Stock based compensation	615		615
Tax benefit from exercise and vesting of stock awards	528		528
Retirement of treasury stock, shares		(4,517)
Retirement of treasury stock		(4)	(41)	45
Net sale of treasury stock from deferred compensation plans	329		218	111
Purchase of treasury stock	(453)			(453)
Dividend Reinvestment and Stock Purchase Plan, shares		6,924
Dividend Reinvestment and Stock Purchase Plan	161	7	154
Share-based awards and options exercises, shares		134,308
Share-based awards and options exercises	2,652	134	2,518
Ending balance at Sep. 30, 2013	$ 217,761	$ 16,527	$ 93,129	$ (31,042)	$ (10,809)	$ 149,956
Ending balance (in shares) at Sep. 30, 2013		16,527,323

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Business Combinations

9 Months Ended

Sep. 30, 2013

Business Combinations

Note 2 - Business Combinations

First Bank of Delaware

The acquisition of certain loan and deposit accounts and a branch location from First Bank of Delaware (“FBD”) by the Corporation (the “FBD Transaction”) was completed on November 17, 2012.

First Bank of Delaware, established in June 1999, was a $250 million state-chartered commercial bank operating from one full-service branch location in Wilmington, Delaware. Subsequent to the transaction with the Corporation, FBD’s remaining assets were transferred to a liquidating trust and its charter was cancelled. The FBD Transaction enabled the Corporation to further expand its footprint in the State of Delaware by complementing its existing wealth management operations of Bryn Mawr Trust of Delaware and Lau Associates, both located in Greenville, Delaware.

The FBD Transaction was accounted for as a business combination, with assets acquired, liabilities assumed and consideration paid recorded at their estimated fair values as of the acquisition date. The excess of consideration paid over the fair value of net assets acquired was recorded as goodwill, which will not be amortizable for book purposes, however will be deductible for tax purposes. The Corporation allocated the total balance of goodwill to its Banking segment. The Corporation also recorded a core deposit intangible which will be amortized over a ten-year period using a declining-balance method.

In connection with the FBD Transaction, 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:

(dollars in thousands)
Consideration paid:
Cash	$	10,559
Value of consideration		10,559
Assets acquired:
Cash and due from banks		525
Loans		76,556
Premises and equipment		460
Core deposit intangible		320
Other assets		256
Total assets		78,117
Liabilities assumed:
Nonmaturity deposits		27,080
Time deposits		43,257
Unfavorable lease		140
Other liabilities		390
Total liabilities		70,867
Net assets acquired		7,250
Goodwill resulting from the FBD Transaction	$	3,309

As of March 31, 2013, the Corporation had finalized its fair value estimates related to the FBD Transaction. No adjustments were made to the original estimates.

Davidson Trust Company

The acquisition of the Davidson Trust Company (“DTC”) by the Corporation was completed on May 15, 2012. In addition to cash paid at closing, three separate contingent payments, each of which is not to exceed $1.05 million, were payable on each of November 14, 2012, May 14, 2013 and November 14, 2013. These contingent payments are subject to certain post-closing contingencies relating to the assets under management. The first two of the three contingent payments were made on November 14, 2012 and May 14, 2013, each in the amount of $1.05 million. The third, and final, contingent payment will be made on November 14, 2013 in the amount of $1.05 million.

The addition of DTC has allowed the Corporation to expand its range of services and bring deeper market penetration in its core market area. The structure of the Corporation’s existing Wealth Management segment allowed for the immediate integration of DTC and takes advantage of the various synergies that exist between the two companies. The acquisition of DTC initially increased the Corporation’s Wealth Management Division assets under management by $1.0 billion.

The acquisition of DTC was accounted for as a business combination, with assets acquired, liabilities assumed and consideration paid being recorded at their estimated fair values as of the acquisition date. The excess of consideration paid over the fair value of net assets acquired was recorded as goodwill. The Corporation allocated the total balance of goodwill to its Wealth Management segment. The Corporation also recorded an intangible asset for customer relationships, which is being amortized over a ten-year period using a straight-line method, an intangible asset for restrictive covenant agreements, which is being amortized over a five-year period using a straight-line method and an intangible asset for trade name which will not be amortized.

In connection with the DTC acquisition, 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:

(dollars in thousands)
Consideration paid:
Cash	$	9,450
Contingent payment liability		1,050
Value of consideration		10,500
Assets acquired:
Cash operating accounts		1,433
Other assets		201
Intangible asset - customer relationships		3,720
Intangible asset - noncompetition agreements		1,385
Intangible asset - brand		970
Premises and equipment		117
Deferred tax asset		839
Total assets		8,665
Liabilities assumed:
Deferred tax liability		2,125
Miscellaneous liabilities		885
Total liabilities		3,010
Net assets acquired		5,655
Goodwill resulting from acquisition of DTC	$	4,845

For the three months ended June 30, 2013, the Corporation increased its estimated value for the deferred tax asset acquired in the DTC acquisition by $54 thousand. This resulted in a corresponding decrease of $54 thousand in goodwill recorded in the transaction.

As of June 30, 2013, the Corporation had finalized its fair value estimates related to the acquisition of DTC.

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Rate and Maturity Information on Long-Term Federal Home Loan Bank Advances and Other Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013		Dec. 31, 2012
Schedule Of Debt Instruments [Line Items]
Balance	$ 191,645		$ 161,315
Fixed Amortizing
Schedule Of Debt Instruments [Line Items]
Maturity Start Range	Apr. 08, 2015	[1]
Maturity End Range	Apr. 08, 2015	[1]
Weighted Average Rate	3.61%
Interest Rate Minimum	3.61%
Interest Rate Maximum	3.61%
Balance	2,485		4,285
Adjustable Amortizing
Schedule Of Debt Instruments [Line Items]
Maturity Start Range	Dec. 31, 2016	[1]
Maturity End Range	Dec. 31, 2016	[1]
Weighted Average Rate	3.25%
Interest Rate Minimum	3.25%
Interest Rate Maximum	3.25%
Balance	7,637		9,400
Bullet Maturity | Fixed Rate
Schedule Of Debt Instruments [Line Items]
Maturity Start Range	Mar. 23, 2015	[1]
Maturity End Range	Dec. 19, 2019	[1]
Weighted Average Rate	1.40%
Interest Rate Minimum	0.58%
Interest Rate Maximum	2.44%
Balance	135,000		90,000
Bullet Maturity | Variable Rate
Schedule Of Debt Instruments [Line Items]
Maturity Start Range	Jun. 25, 2015	[1]
Maturity End Range	Nov. 18, 2017	[1]
Weighted Average Rate	0.46%
Interest Rate Minimum	0.46%
Interest Rate Maximum	0.46%
Balance	25,000		15,000
Convertible-Fixed
Schedule Of Debt Instruments [Line Items]
Maturity Start Range	Jan. 03, 2018	[1],[2]
Maturity End Range	Aug. 20, 2018	[1],[2]
Weighted Average Rate	2.47%	[2]
Interest Rate Minimum	2.21%	[2]
Interest Rate Maximum	2.62%	[2]
Balance	$ 21,523	[2]	$ 42,630	[2]

[1] Maturity range refers to September 30, 2013 balances

[2] FHLB advances whereby the FHLB has the option, at predetermined times, to convert the fixed interest rate to an adjustable interest rate indexed to the London Interbank Offered Rate ("LIBOR"). The Corporation has the option to prepay these advances, without penalty, if the FHLB elects to convert the interest rate to an adjustable rate. As of September 30, 2013, substantially all the FHLB advances with this convertible feature are subject to conversion in fiscal 2013. These advances are included in the maturity ranges in which they mature, rather than the period in which they are subject to conversion.

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Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Dividends declared, per share	$ 0.51
Other comprehensive loss, tax expense (benefit)	$ (393)

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Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2013

Components of Accumulated Other Comprehensive (Loss) Income

The following tables detail the components of accumulated other comprehensive (loss) income for the three and nine month periods ended September 30, 2013 and 2012:

(dollars in thousands)	Net Change in Unrealized  Gains on Available-for- Sale Investment Securities			Net Change in Fair  Value of Derivative Used for  Cash Flow Hedge		Net Change  in Unfunded Pension Liability			Accumulated Other Comprehensive Loss
Balance, June 30, 2013	$	(123	)	$	577	$	(11,559	)	$	(11,105	)
Net change		50			—		246			296
Balance, September 30, 2013	$	(73	)	$	577	$	(11,313	)	$	(10,809	)
Balance, June 30, 2012	$	2,735		$	—	$	(12,613	)	$	(9,878	)
Net change		951			—		272			1,223
Balance, September 30, 2012	$	3,686		$	—	$	(12,341	)	$	(8,655	)

(dollars in thousands)	Net Change in Unrealized  Gains on Available-for- Sale Investment Securities			Net Change in Fair  Value of Derivative Used for  Cash Flow Hedge			Net Change  in Unfunded Pension Liability			Accumulated Other Comprehensive Loss
Balance, December 31, 2012	$	3,164		$	(24	)	$	(13,218	)	$	(10,078	)
Net change		(3,237	)		601			1,905			(731	)
Balance, September 30, 2013	$	(73	)	$	577		$	(11,313	)	$	(10,809	)
Balance, December 31, 2011	$	1,792		$	—		$	(13,157	)	$	(11,365	)
Net change		1,894			—			816			2,710
Balance, September 30, 2012	$	3,686		$	—		$	(12,341	)	$	(8,655	)

Amounts Reclassified from Each Component of Accumulated Other Comprehensive (Loss) Income

The following tables detail the amounts reclassified from each component of accumulated other comprehensive loss for the three and nine month periods ended September 30, 2013 and 2012:

Description of Accumulated Other Comprehensive Loss Component	Amount Reclassified from Accumulated Other Comprehensive Loss					Affected Income Statement Category
	For The Three Months Ended September 30,
	2013		2012
Net unrealized gain on investment securities available for sale:
Realization of gain on sale of investment securities available for sale	$	—	$	(416	)	Net gain on sale of available for sale investment securities
		—		(146	)	Less: income tax expense
	$	—	$	(270	)	Net of income tax
Unfunded pension liability:
Amortization of net loss included in net periodic pension costs*	$	463	$	488		Employee benefits
Amortization of prior service cost included in net periodic pension costs*		3		21		Employee benefits
Amortization of transition obligation included in net periodic pension costs*		—		7		Employee benefits
		466		516		Total expense before income tax benefit
		163		181		Less: income tax benefit
	$	303	$	335		Net of income tax

Description of Accumulated Other Comprehensive Loss Component	Amount Reclassified  from Accumulated Other Comprehensive Loss						Affected Income Statement Category
	For The  Nine Months Ended September 30,
	2013			2012
Net unrealized gain on investment securities available for sale:
Realization of gain on sale of investment securities available for sale	$	(2	)	$	(1,132	)	Net gain on sale of available for sale investment securities
		(1	)		(396	)	Less: income tax expense
	$	(1	)	$	(736	)	Net of income tax
Unfunded pension liability:
Amortization of net loss included in net periodic pension costs*	$	1,390		$	1,466		Employee benefits
Amortization of prior service cost included in net periodic pension costs*		10			62		Employee benefits
Amortization of transition obligation included in net periodic pension costs*		—			20		Employee benefits
Gain on curtailment of SERP II		(690	)		—		Net gain on curtailment of nonqualified pension plan
		710			1,548		Total expense before income tax benefit
		249			703		Less: income tax benefit
	$	461		$	845		Net of income tax

* Accumulated other comprehensive loss components are included in the computation of net periodic pension cost. See Note 10 - Pension and Other Post-Retirement Benefit Plans

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New Accounting Pronouncements

9 Months Ended

Sep. 30, 2013

New Accounting Pronouncements

Note 19 - New Accounting Pronouncements

FASB ASU No. 2013-02 - Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income

In February 2013, the FASB issued ASU 2013-02 - Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income) which requires entities to disclose, for items reclassified out of accumulated other comprehensive income (“AOCI”) and into net income in their entirety, the effect of the reclassification on each affected net income line item and, for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required U.S. GAAP disclosures. The guidance is effective for annual and interim reporting periods beginning after December 15, 2012; early adoption is allowed. The Corporation has adopted ASU 2013-02 with no impact on its financial condition and results of operations.

FASB ASU No. 2013-10 - Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes

In July 2013, the FASB issued ASU 2013-10 - Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes which permits the uses of this alternative benchmark interest rate, in addition to the U.S. government rate (UST) and London Interbank Offered Rate (LIBOR), as a U.S. benchmark interest rate for hedge accounting purposes under FASB ASC Topic 815, Derivatives and Hedging. The Corporation currently uses LIBOR as a benchmark for hedge accounting purposes. As such, Management does not expect ASU 2013-10 to have any impact on its financial condition and results of operations.

FASB ASU No. 2013-11 - Presentation of an Unrecognized Tax Benefit When a Net Operation Loss Carryforward , a Similar Tax Loss, or a Tax Credit Exists

In July 2013, the FASB issued ASU 2013-11 - Presentation of an Unrecognized Tax Benefit When a Net Operation Loss carryforward, a Similar Tax Loss, or a Tax Credit Exists which requires an entity to present an unrecognized tax benefit as a reduction of a deferred tax asset for a net operating loss (NOL) carryforward, or similar tax loss or tax credit carryforward, rather than as a liability when (1) the uncertain tax position would reduce the NOL or other carryforward under the tax law of the applicable jurisdiction and (2) the entity intends to use the deferred tax asset for that purpose. The Corporation does not currently have an NOL carryforward. As such, Management does not expect ASU 2013-11 to have any impact on its financial condition and results of operations.

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Loans and Leases (Tables)

9 Months Ended

Sep. 30, 2013

Summary of Loans and Leases Outstanding

Loans and leases outstanding are detailed by category as follows:

	September 30, 2013		December 31, 2012
Loans held for sale	$	1,284	$	3,412
Real estate loans:
Commercial mortgage	$	622,771	$	546,358
Home equity lines and loans		187,634		194,861
Residential mortgage		291,645		288,212
Construction		39,055		26,908
Total real estate loans		1,141,105		1,056,339
Commercial and industrial		303,259		291,620
Consumer		17,572		17,666
Leases		38,079		32,831
Total portfolio loans and leases		1,500,015		1,398,456
Total loans and leases	$	1,501,299	$	1,401,868
Loans with predetermined rates	$	814,781	$	723,417
Loans with adjustable or floating rates		686,518		678,451
Total loans and leases	$	1,501,299	$	1,401,868
Net deferred loan origination costs included in the above loan table	$	449	$	402

Summary of Net Investments in Leases

Components of the net investment in leases are detailed as follows:

(dollars in thousands)	September 30, 2013			December 31, 2012
Minimum lease payments receivable	$	43,312		$	37,349
Unearned lease income		(7,068	)		(6,099	)
Initial direct costs and deferred fees		1,835			1,581
Total	$	38,079		$	32,831

Summary of Non-Performing Loans and Leases

Non-Performing Loans and Leases⁽¹⁾

(dollars in thousands)	September 30, 2013		December 31, 2012
Non-accrual loans and leases:
Commercial mortgage	$	511	$	631
Home equity lines and loans		1,544		2,792
Residential mortgage		3,838		3,748
Construction		1,661		3,314
Commercial and industrial		2,994		3,506
Consumer		49		7
Leases		16		42
Total	$	10,613	$	14,040
Loans and leases 90 days or more past due, still accruing:
Construction		—		728
Total nonperforming loans and leases	$	10,613	$	14,768

⁽¹⁾  Purchased credit-impaired loans, which have been recorded at their fair values at acquisition, and which are performing, are excluded from this table, with the exception of $90 thousand of purchased credit-impaired loans as of both September 30, 2013 and December 31, 2012, which became non-performing subsequent to acquisition.

Schedule of Carrying Amount of Acquired Credit Impaired Loan

Purchased Credit-Impaired Loans

The outstanding principal balance and related carrying amount of credit-impaired loans, for which the Bank applies ASC 310-30 to account for the interest earned, as of the dates indicated, are as follows:

(dollars in thousands)	September 30, 2013		December 31, 2012
Outstanding principal balance	$	15,975	$	19,527
Carrying amount(1)	$	10,622	$	12,128

(1) Includes $149 thousand and $319 thousand of purchased credit-impaired loans as of September 30, 2013 and December 31, 2012, respectively, for which the Bank could not estimate the timing or amount of expected cash flows to be collected at acquisition, and for which no accretable yield is recognized. Additionally, the table above includes $90 thousand of purchased credit-impaired loans as of both September 30, 2013 and December 31, 2012, which subsequently became non-performing, which are disclosed in Note 5C, above, and which also have no accretable yield.

Schedule of Changes in Accretable Discount on Purchased Credit-Impaired Loans

The following table presents changes in the accretable discount on purchased credit-impaired loans, for which the Bank applies ASC 310-30, for the nine months ended September 30, 2013:

(dollars in thousands)	Accretable Discount
Balance, December 31, 2012	$	8,025
Accretion		(1,404	)
Reclassifications from nonaccretable difference		998
Additions/adjustments		(257	)
Disposals		(886	)
Balance, September 30, 2013	$	6,476

Schedule of Aging of Corporation's Loan and Lease Portfolio

The following tables present an aging of the Corporation’s loan and lease portfolio as of the dates indicated:

	Accruing Loans and Leases
(dollars in thousands)	30 - 59 Days Past Due		60 - 89 Days Past Due		Over 89 Days Past Due		Total Past Due		Current		Total Accruing Loans and Leases		Nonaccrual Loans and Leases		Total Loans and Leases
As of September 30, 2013
Commercial mortgage	$	—	$	147	$	—	$	147	$	622,113	$	622,260	$	511	$	622,771
Home equity lines and loans		—		—		—		—		186,090		186,090		1,544		187,634
Residential mortgage		849		105		—		954		286,853		287,807		3,838		291,645
Construction		—		—		—		—		37,394		37,394		1,661		39,055
Commercial and industrial		34		—		—		34		300,231		300,265		2,994		303,259
Consumer		4		—		—		4		17,519		17,523		49		17,572
Leases		27		62		—		89		37,974		38,063		16		38,079
	$	914	$	314	$	—	$	1,228	$	1,488,174	$	1,489,402	$	10,613	$	1,500,015

	Accruing Loans and Leases
(dollars in thousands)	30 - 59 Days Past Due		60 - 89 Days Past Due		Over 89 Days Past Due		Total Past Due		Current		Total Accruing Loans and Leases		Nonaccrual Loans and Leases		Total Loans and Leases
As of December 31, 2012
Commercial mortgage	$	704	$	130	$	—	$	834	$	544,893	$	545,727	$	631	$	546,358
Home equity lines and loans		107		84		—		191		191,878		192,069		2,792		194,861
Residential mortgage		399		141		—		540		283,924		284,464		3,748		288,212
Construction		—		—		728		728		22,866		23,594		3,314		26,908
Commercial and industrial		376		50		—		426		287,688		288,114		3,506		291,620
Consumer		8		7		—		15		17,644		17,659		7		17,666
Leases		33		13		—		46		32,743		32,789		42		32,831
	$	1,627	$	425	$	728	$	2,780	$	1,381,636	$	1,384,416	$	14,040	$	1,398,456

Rollforward of Corporation's Allowance for Loan and Leases Losses by Loan Category

The following tables detail the roll-forward of the Corporation’s allowance for loan and lease losses, by loan category, for the three and nine months ended September 30, 2013:

(dollars in thousands)	Commercial Mortgage			Home Equity Lines and Loans			Residential Mortgage			Construction		Commercial and Industrial			Consumer			Leases			Unallocated			Total
Balance, June 30, 2013	$	4,481		$	2,109		$	1,773		$	653	$	4,295		$	218		$	551		$	364		$	14,444
Charge-offs		(19	)		(105	)		(203	)		—		(19	)		(31	)		(124	)		—			(501	)
Recoveries		—			29			5			6		20			3			62			—			125
Provision for loan and lease losses		20			153			523			9		134			68			82			(30	)		959
Balance, September 30, 2013	$	4,482		$	2,186		$	2,098		$	668	$	4,430		$	258		$	571		$	334		$	15,027

(dollars in thousands)	Commercial Mortgage			Home Equity Lines and Loans			Residential Mortgage			Construction			Commercial and Industrial			Consumer			Leases			Unallocated		Total
Balance, December 31, 2012	$	3,907		$	1,857		$	2,024		$	1,019		$	4,637		$	189		$	493		$	299	$	14,425
Charge-offs		(19	)		(457	)		(203	)		(720	)		(737	)		(101	)		(258	)		—		(2,495	)
Recoveries		—			29			13			24			64			7			197			—		334
Provision for loan and lease losses		594			757			264			345			466			163			139			35		2,763
Balance, September 30, 2013	$	4,482		$	2,186		$	2,098		$	668		$	4,430		$	258		$	571		$	334	$	15,027

The following tables detail the roll-forward of the Corporation’s allowance for loan and lease losses, by loan category, for the three and nine months ended September 30, 2012:

(dollars in thousands)	Commercial Mortgage		Home Equity Lines and Loans			Residential Mortgage			Construction			Commercial and Industrial		Consumer			Leases			Unallocated			Total
Balance, June 30, 2012	$	3,384	$	1,749		$	1,636		$	1,112		$	3,789	$	180		$	535		$	755		$	13,140
Charge-offs		—		(315	)		(18	)		(197	)		—		(19	)		(69	)		—			(618	)
Recoveries		4		—			—			—			25		1			86			—			116
Provision for loan and lease losses		235		244			3			109			766		38			(85	)		(310	)		1,000
Balance, September 30, 2012	$	3,623	$	1,678		$	1,621		$	1,024		$	4,580	$	200		$	467		$	445		$	13,638

(dollars in thousands)	Commercial Mortgage			Home Equity Lines and Loans			Residential Mortgage			Construction			Commercial and Industrial			Consumer			Leases			Unallocated		Total
Balance, December 31, 2011	$	3,165		$	1,707		$	1,592		$	1,384		$	3,816		$	119		$	532		$	438	$	12,753
Charge-offs		(235	)		(328	)		(188	)		(896	)		(409	)		(61	)		(300	)		—		(2,417	)
Recoveries		4			—			—			—			91			5			199			—		299
Provision for loan and lease losses		689			299			217			536			1,082			137			36			7		3,003
Balance, September 30, 2012	$	3,623		$	1,678		$	1,621		$	1,024		$	4,580		$	200		$	467		$	445	$	13,638

Allocation of Allowance by Portfolio Segment Based on Methodology Used to Evaluate Loans and Leases for Impairment

The following table details the allocation of the Allowance by portfolio segment based on the methodology used to evaluate the loans and leases for impairment as of September 30, 2013 and December 31, 2012:

(dollars in thousands)	Commercial Mortgage		Home Equity Lines and Loans		Residential Mortgage		Construction		Commercial and Industrial		Consumer		Leases		Unallocated		Total
As of September 30, 2013
Allowance on loans and leases:
Individually evaluated for impairment	$	—	$	119	$	628	$	—	$	544	$	56	$	—	$	—	$	1,347
Collectively evaluated for impairment		4,474		2,067		1,470		668		3,886		202		571		334		13,672
Purchased credit-impaired(1)		8		—		—		—		—		—		—		—		8
Total	$	4,482	$	2,186	$	2,098	$	668	$	4,430	$	258	$	571	$	334	$	15,027
As of December 31, 2012
Allowance on loans and leases:
Individually evaluated for impairment	$	—	$	217	$	667	$	543	$	919	$	8	$	—	$	—	$	2,354
Collectively evaluated for impairment		3,894		1,640		1,357		451		3,718		181		493		299		12,033
Purchased credit-impaired(1)		13		—		—		25		—		—		—		—		38
Total	$	3,907	$	1,857	$	2,024	$	1,019	$	4,637	$	189	$	493	$	299	$	14,425

⁽¹⁾  Purchased credit-impaired loans are evaluated for impairment on an individual basis.

Carrying Value for Loans and Leases by Portfolio Segment Based on Methodology Used to Evaluate Loans and Leases for Impairment one

The following table details the carrying value for loans and leases by portfolio segment based on the methodology used to evaluate the loans and leases for impairment as of September 30, 2013 and December 31, 2012:

(dollars in thousands)	Commercial Mortgage		Home Equity Lines and Loans		Residential Mortgage		Construction		Commercial and Industrial		Consumer		Leases		Total
As of September 30, 2013
Carrying value of loans and leases:
Individually evaluated for impairment	$	421	$	2,066	$	9,539	$	3,072	$	4,228	$	82	$	—	$	19,408
Collectively evaluated for impairment		612,393		185,552		282,065		35,655		298,751		17,490		38,079		1,469,985
Purchased credit-impaired(1)		9,957		16		41		328		280		—		—		10,622
Total	$	622,771	$	187,634	$	291,645	$	39,055	$	303,259	$	17,572	$	38,079	$	1,500,015
As of December 31, 2012
Carrying value of loans and leases:
Individually evaluated for impairment	$	541	$	3,403	$	9,211	$	4,631	$	3,997	$	7	$	—	$	21,790
Collectively evaluated for impairment		535,506		191,439		278,951		20,785		287,367		17,659		32,831		1,364,538
Purchased credit-impaired(1)		10,311		19		50		1,492		256		—		—		12,128
Total	$	546,358	$	194,861	$	288,212	$	26,908	$	291,620	$	17,666	$	32,831	$	1,398,456

⁽¹⁾  Purchased credit-impaired loans are evaluated for impairment on an individual basis.

Carrying Value of Loans and Leases by Portfolio Segment Based on the Credit Quality Indicators

The following tables detail the carrying value of loans and leases by portfolio segment based on the credit quality indicators used to determine the Allowance as of September 30, 2013 and December 31, 2012:

	Credit Risk Profile by Internally Assigned Grade
(dollars in thousands)	Commercial Mortgage				Construction				Commercial and Industrial				Total
	September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012
Pass	$	615,742	$	538,470	$	35,518	$	16,504	$	294,194	$	278,167	$	945,454	$	833,141
Special Mention		3,771		2,215		—		1,317		2,265		6,256		6,036		9,788
Substandard		3,258		5,673		3,537		9,087		6,800		7,197		13,595		21,957
Total	$	622,771	$	546,358	$	39,055	$	26,908	$	303,259	$	291,620	$	965,085	$	864,886

	Credit Risk Profile by Payment Activity
(dollars in thousands)	Residential Mortgage				Home Equity Lines and Loans				Consumer				Leases				Total
	September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012
Performing	$	287,807	$	284,464	$	186,090	$	192,069	$	17,523	$	17,659	$	38,063	$	32,789	$	529,483	$	526,981
Non-performing		3,838		3,748		1,544		2,792		49		7		16		42		5,447		6,589
Total	$	291,645	$	288,212	$	187,634	$	194,861	$	17,572	$	17,666	$	38,079	$	32,831	$	534,930	$	533,570

Schedule of Balance of TDRs

The following table presents the balance of TDRs as of the indicated dates:

(dollars in thousands)	September 30, 2013		December 31, 2012
TDRs included in nonperforming loans and leases	$	2,628	$	3,106
TDRs in compliance with modified terms		8,947		8,008
Total TDRs	$	11,575	$	11,114

Loan and Lease Modifications Categorized as TDRs

The following tables present information regarding loan and lease modifications categorized as TDRs for the three and nine months ended September 30, 2013:

	For the Three Months Ended September 30, 2013
(dollars in thousands)	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding  Recorded Investment
Commercial and industrial		1	$	75	$	75
Consumer		1		33		33
Leases		2		18		18
Total		4	$	126	$	126

	For the Nine Months Ended September 30, 2013
(dollars in thousands)	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding  Recorded Investment
Residential mortgage		2	$	674	$	674
Home equity lines and loans		2		40		40
Commercial and industrial		2		930		930
Consumer		1		33		33
Leases		4		38		38
Total		11	$	1,715	$	1,715

Types of Loan and Lease Modifications

The following tables presents information regarding the types of loan and lease modifications made for the three and nine months ended September 30, 2013:

	Number of Contracts for the Three Months Ended September 30, 2013
	Interest Rate Change		Loan Term Extension		Interest Rate Change and Term Extension		Interest-Only Period		Contractual Payment Reduction (Leases only)		Forgiveness of Interest
Commercial and industrial		—		—		—		1		—		—
Consumer		1		—		—		—		—		—
Leases		—		—		—		—		2		—
Total		1		—		—		1		2		—

	Number of Contracts for the Nine Months Ended September 30, 2013
	Interest Rate Change		Loan Term Extension		Interest Rate Change and Term Extension		Interest-Only Period		Contractual Payment Reduction (Leases only)		Forgiveness of Interest
Residential mortgage		—		—		1		—		—		1
Home equity lines and loans		1		—		—		1		—		—
Commercial and industrial		—		—		—		2		—		—
Consumer		1		—		—		—		—		—
Leases		—		—		—		—		4		—
Total		2		—		1		3		4		1

Summary of Recorded Investment and Principal Balance of Impaired Loans by Portfolio Segment

The following tables detail the recorded investment and principal balance of impaired loans by portfolio segment, their related Allowance and interest income recognized as of the dates or for the periods indicated:

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the three months ended September 30, 2013
Impaired loans with related Allowance:
Home equity lines and loans	$	544	$	589	$	119	$	619	$	5	$	—
Residential mortgage		4,448		4,419		628		4,485		28		—
Commercial and industrial		2,586		2,709		544		2,798		21		—
Consumer		82		82		56		84		1		—
Total	$	7,660	$	7,799	$	1,347	$	7,986	$	55	$	—
Impaired loans without related Allowance(1) (3):
Commercial mortgage	$	421	$	432	$	—	$	471	$	—	$	—
Home equity lines and loans		1,523		1,532		—		1,631		2		—
Residential mortgage		5,091		5,340		—		5,598		39		—
Construction		3,072		4,035		—		3,824		13		—
Commercial and industrial		1,641		1,812		—		1,817		1		—
Total	$	11,748	$	13,151	$	—	$	13,341	$	55	$	—
Grand total	$	19,408	$	20,950	$	1,347	$	21,327	$	110	$	—

⁽¹⁾  The table above does not include the recorded investment of $62 thousand of impaired leases without a related Allowance.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the nine months ended September 30, 2013
Impaired loans with related Allowance:
Home equity lines and loans	$	544	$	589	$	119	$	617	$	15	$	—
Residential mortgage		4,448		4,419		628		4,408		83		—
Commercial and industrial		2,586		2,709		544		2,823		53		—
Consumer		82		82		56		86		4		—
Total	$	7,660	$	7,799	$	1,347	$	7,934	$	155	$	—
Impaired loans without related Allowance(1) (3):
Commercial mortgage	$	421	$	432	$	—	$	471	$	—	$	—
Home equity lines and loans		1,523		1,532		—		1,631		2		—
Residential mortgage		5,091		5,340		—		5,598		39		—
Construction		3,072		4,035		—		3,824		13		—
Commercial and industrial		1,641		1,812		—		1,817		1		—
Total	$	11,748	$	13,151	$	—	$	13,341	$	55	$	—
Grand total	$	19,408	$	20,950	$	1,347	$	21,275	$	210	$	—

⁽¹⁾  The table above does not include the recorded investment of $62 thousand of impaired leases without a related Allowance.

⁽²⁾ Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the three months ended September 30, 2012
Impaired loans with related allowance:
Home equity lines and loans	$	1,152	$	1,210	$	203	$	1,211	$	—	$	—
Residential mortgage		1,708		1,716		229		1,716		7		—
Construction		3,678		3,694		698		5,313		—		—
Commercial and industrial		2,856		2,869		771		2,875		3		—
Consumer		19		21		19		21		—		—
Total	$	9,413	$	9,510	$	1,920	$	11,136	$	10	$	—
Impaired loans without related allowance(1) (3):
Commercial mortgage	$	343	$	364	$	—	$	364	$	—	$	—
Home equity lines and loans		1,727		1,795		—		2,050		1		—
Residential mortgage		7,992		8,311		—		8,324		68		—
Construction		1,317		1,317		—		1,446		15		—
Commercial and industrial		845		845		—		846		3		—
Total	$	12,224	$	12,632	$	—	$	13,030	$	87	$	—
Grand total	$	21,637	$	22,142	$	1,920	$	24,166	$	97	$	—

⁽¹⁾  The table above does not include the recorded investment of $223 thousand of impaired leases without a related allowance for loan and lease losses.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the nine months ended September 30, 2012
Impaired loans with related allowance:
Home equity lines and loans	$	1,152	$	1,210	$	203	$	1,211	$	—	$	—
Residential mortgage		1,708		1,716		229		1,718		22		—
Construction		3,678		3,694		698		5,444		—		—
Commercial and industrial		2,856		2,869		771		2,877		12		—
Consumer		19		21		19		23		—		—
Total	$	9,413	$	9,510	$	1,920	$	11,273	$	34	$	—
Impaired loans without related allowance(1) (3):
Commercial mortgage	$	343	$	364	$	—	$	364	$	4	$	—
Home equity lines and loans		1,727		1,795		—		2,042		3		—
Residential mortgage		7,992		8,311		—		8,231		204		—
Construction		1,317		1,317		—		1,376		44		—
Commercial and industrial		845		845		—		846		10		—
Total	$	12,224	$	12,632	$	—	$	12,859	$	265	$	—
Grand total	$	21,637	$	22,142	$	1,920	$	24,132	$	299	$	—

⁽¹⁾  The table above does not include the recorded investment of $223 thousand of impaired leases without a related allowance for loan and lease losses.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance
As of December 31, 2012
Impaired loans with related Allowance:
Home equity lines and loans	$	1,261	$	1,321	$	217
Residential mortgage		4,778		4,793		667
Construction		2,564		2,564		543
Commercial and industrial		3,357		3,383		919
Consumer		7		8		8
Total	$	11,967	$	12,069	$	2,354
Impaired loans without related Allowance(1):
Commercial mortgage	$	541	$	574	$	—
Home equity lines and loans		2,142		2,223		—
Residential mortgage		4,433		4,741		—
Construction		2,067		2,317		—
Commercial and industrial		640		639		—
Total	$	9,823	$	10,494	$	—
Grand total	$	21,790	$	22,563	$	2,354

⁽¹⁾  The table above does not include the recorded investment of $168 thousand of impaired leases without a related Allowance.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal

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Information Concerning Short-Term Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Short-term Debt [Line Items]
Balance at period-end	$ 75,588	$ 19,029	$ 75,588	$ 19,029	$ 9,403
Maximum amount outstanding at any month-end	75,588	19,029	75,588	19,029
Average balance outstanding during the period	$ 14,995	$ 13,695	$ 13,455	$ 13,621
Weighted-average interest rate, as of period-end	0.34%	0.44%	0.34%	0.44%
Weighted-average interest rate, paid during the period	0.15%	0.16%	0.12%	0.17%

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Pension and Other Post-Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2013

Components of Net Periodic Benefits Cost (Benefit)

The following tables provide details of the components of the net periodic benefits cost (benefit) for the three and nine months ended September 30, 2013 and 2012:

	Three Months Ended September 30,
	SERP I and SERP II				QDBP						PRBP
(dollars in thousands)	2013		2012		2013			2012			2013		2012
Service cost	$	18	$	67	$	—		$	—		$	—	$	—
Interest cost		40		61		371			394			8		9
Expected return on plan assets		—		—		(745	)		(701	)		—		—
Amortization of transition obligation		—		—		—			—			—		7
Amortization of prior service costs		3		21		—			—			—		—
Amortization of net loss		13		22		431			447			19		19
Gain on curtailment		—		—		—			—			—		—
Net periodic benefit cost	$	74	$	171	$	57		$	140		$	27	$	35

	Nine Months Ended September 30,
	SERP I and SERP II					QDBP						PRBP
(dollars in thousands)	2013			2012		2013			2012			2013		2012
Service cost	$	54		$	201	$	—		$	—		$	—	$	—
Interest cost		119			183		1,114			1,183			22		27
Expected return on plan assets		—			—		(2,236	)		(2,103	)		—		—
Amortization of transition obligation		—			—		—			—			—		20
Amortization of prior service costs		10			62		—			—			—		—
Amortization of net loss		39			68		1,293			1,340			58		58
Gain on curtailment		(690	)		—		—			—			—		—
Net periodic benefit cost	$	(468	)	$	514	$	171		$	420		$	80	$	105

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Summary of Short-Term Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Short-term Debt [Line Items]
Short-term borrowings	$ 75,588	$ 9,403	$ 19,029
Overnight Fed Funds
Short-term Debt [Line Items]
Short-term borrowings	25,000
Federal Home Loan Bank Advances
Short-term Debt [Line Items]
Short-term borrowings	38,000
Repurchase Agreements
Short-term Debt [Line Items]
Short-term borrowings	$ 12,588	$ 9,403

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Accounting for Uncertainty in Income Taxes - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Likelihood of tax benefit realized upon ultimate settlement tax benefit sustained	50.00%

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Non-Performing Loans and Leases (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased credit-impaired loans	$ 90	$ 90

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Investment Securities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 97.4	$ 108.7

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Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed, First Bank of Delaware (Detail) (USD $) In Thousands, unless otherwise specified			1 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Nov. 17, 2012 First Bank Of Delaware
Business Acquisition [Line Items]
Cash			$ 10,559
Value of consideration			10,559
Cash and due from banks			525
Loans			76,556
Premises and equipment			460
Core deposit intangible			320
Other assets			256
Total assets			78,117
Nonmaturity deposits			27,080
Time deposits			43,257
Unfavorable lease			140
Other liabilities			390
Total liabilities			70,867
Net assets acquired			7,250
Goodwill resulting from the FBD Transaction	$ 32,843	$ 32,897	$ 3,309

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Investment securities available for sale, amortized cost	$ 320,030	$ 311,747
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	16,527,323	16,390,608
Common stock, shares outstanding	13,551,438	13,412,690
Common stock in treasury, shares	2,975,885	2,977,918

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Loans and Leases

9 Months Ended

Sep. 30, 2013

Loans and Leases

Note 5 - Loans and Leases

A. Loans and leases outstanding are detailed by category as follows:

	September 30, 2013		December 31, 2012
Loans held for sale	$	1,284	$	3,412
Real estate loans:
Commercial mortgage	$	622,771	$	546,358
Home equity lines and loans		187,634		194,861
Residential mortgage		291,645		288,212
Construction		39,055		26,908
Total real estate loans		1,141,105		1,056,339
Commercial and industrial		303,259		291,620
Consumer		17,572		17,666
Leases		38,079		32,831
Total portfolio loans and leases		1,500,015		1,398,456
Total loans and leases	$	1,501,299	$	1,401,868
Loans with predetermined rates	$	814,781	$	723,417
Loans with adjustable or floating rates		686,518		678,451
Total loans and leases	$	1,501,299	$	1,401,868
Net deferred loan origination costs included in the above loan table	$	449	$	402

B. Components of the net investment in leases are detailed as follows:

(dollars in thousands)	September 30, 2013			December 31, 2012
Minimum lease payments receivable	$	43,312		$	37,349
Unearned lease income		(7,068	)		(6,099	)
Initial direct costs and deferred fees		1,835			1,581
Total	$	38,079		$	32,831

C. Non-Performing Loans and Leases⁽¹⁾

(dollars in thousands)	September 30, 2013		December 31, 2012
Non-accrual loans and leases:
Commercial mortgage	$	511	$	631
Home equity lines and loans		1,544		2,792
Residential mortgage		3,838		3,748
Construction		1,661		3,314
Commercial and industrial		2,994		3,506
Consumer		49		7
Leases		16		42
Total	$	10,613	$	14,040
Loans and leases 90 days or more past due, still accruing:
Construction		—		728
Total nonperforming loans and leases	$	10,613	$	14,768

⁽¹⁾  Purchased credit-impaired loans, which have been recorded at their fair values at acquisition, and which are performing, are excluded from this table, with the exception of $90 thousand of purchased credit-impaired loans as of both September 30, 2013 and December 31, 2012, which became non-performing subsequent to acquisition.

D. Purchased Credit-Impaired Loans

The outstanding principal balance and related carrying amount of credit-impaired loans, for which the Bank applies ASC 310-30 to account for the interest earned, as of the dates indicated, are as follows:

(dollars in thousands)	September 30, 2013		December 31, 2012
Outstanding principal balance	$	15,975	$	19,527
Carrying amount(1)	$	10,622	$	12,128

(1) Includes $149 thousand and $319 thousand of purchased credit-impaired loans as of September 30, 2013 and December 31, 2012, respectively, for which the Bank could not estimate the timing or amount of expected cash flows to be collected at acquisition, and for which no accretable yield is recognized. Additionally, the table above includes $90 thousand of purchased credit-impaired loans as of both September 30, 2013 and December 31, 2012, which subsequently became non-performing, which are disclosed in Note 5C, above, and which also have no accretable yield.

The following table presents changes in the accretable discount on purchased credit-impaired loans, for which the Bank applies ASC 310-30, for the nine months ended September 30, 2013:

(dollars in thousands)	Accretable Discount
Balance, December 31, 2012	$	8,025
Accretion		(1,404	)
Reclassifications from nonaccretable difference		998
Additions/adjustments		(257	)
Disposals		(886	)
Balance, September 30, 2013	$	6,476

E. Age Analysis of Past Due Loans and Leases

The following tables present an aging of the Corporation’s loan and lease portfolio as of the dates indicated:

	Accruing Loans and Leases
(dollars in thousands)	30 - 59 Days Past Due		60 - 89 Days Past Due		Over 89 Days Past Due		Total Past Due		Current		Total Accruing Loans and Leases		Nonaccrual Loans and Leases		Total Loans and Leases
As of September 30, 2013
Commercial mortgage	$	—	$	147	$	—	$	147	$	622,113	$	622,260	$	511	$	622,771
Home equity lines and loans		—		—		—		—		186,090		186,090		1,544		187,634
Residential mortgage		849		105		—		954		286,853		287,807		3,838		291,645
Construction		—		—		—		—		37,394		37,394		1,661		39,055
Commercial and industrial		34		—		—		34		300,231		300,265		2,994		303,259
Consumer		4		—		—		4		17,519		17,523		49		17,572
Leases		27		62		—		89		37,974		38,063		16		38,079
	$	914	$	314	$	—	$	1,228	$	1,488,174	$	1,489,402	$	10,613	$	1,500,015

	Accruing Loans and Leases
(dollars in thousands)	30 - 59 Days Past Due		60 - 89 Days Past Due		Over 89 Days Past Due		Total Past Due		Current		Total Accruing Loans and Leases		Nonaccrual Loans and Leases		Total Loans and Leases
As of December 31, 2012
Commercial mortgage	$	704	$	130	$	—	$	834	$	544,893	$	545,727	$	631	$	546,358
Home equity lines and loans		107		84		—		191		191,878		192,069		2,792		194,861
Residential mortgage		399		141		—		540		283,924		284,464		3,748		288,212
Construction		—		—		728		728		22,866		23,594		3,314		26,908
Commercial and industrial		376		50		—		426		287,688		288,114		3,506		291,620
Consumer		8		7		—		15		17,644		17,659		7		17,666
Leases		33		13		—		46		32,743		32,789		42		32,831
	$	1,627	$	425	$	728	$	2,780	$	1,381,636	$	1,384,416	$	14,040	$	1,398,456

F. Allowance for Loan and Lease Losses (the “Allowance”)

The following tables detail the roll-forward of the Corporation’s allowance for loan and lease losses, by loan category, for the three and nine months ended September 30, 2013:

(dollars in thousands)	Commercial Mortgage			Home Equity Lines and Loans			Residential Mortgage			Construction		Commercial and Industrial			Consumer			Leases			Unallocated			Total
Balance, June 30, 2013	$	4,481		$	2,109		$	1,773		$	653	$	4,295		$	218		$	551		$	364		$	14,444
Charge-offs		(19	)		(105	)		(203	)		—		(19	)		(31	)		(124	)		—			(501	)
Recoveries		—			29			5			6		20			3			62			—			125
Provision for loan and lease losses		20			153			523			9		134			68			82			(30	)		959
Balance, September 30, 2013	$	4,482		$	2,186		$	2,098		$	668	$	4,430		$	258		$	571		$	334		$	15,027

(dollars in thousands)	Commercial Mortgage			Home Equity Lines and Loans			Residential Mortgage			Construction			Commercial and Industrial			Consumer			Leases			Unallocated		Total
Balance, December 31, 2012	$	3,907		$	1,857		$	2,024		$	1,019		$	4,637		$	189		$	493		$	299	$	14,425
Charge-offs		(19	)		(457	)		(203	)		(720	)		(737	)		(101	)		(258	)		—		(2,495	)
Recoveries		—			29			13			24			64			7			197			—		334
Provision for loan and lease losses		594			757			264			345			466			163			139			35		2,763
Balance, September 30, 2013	$	4,482		$	2,186		$	2,098		$	668		$	4,430		$	258		$	571		$	334	$	15,027

The following tables detail the roll-forward of the Corporation’s allowance for loan and lease losses, by loan category, for the three and nine months ended September 30, 2012:

(dollars in thousands)	Commercial Mortgage		Home Equity Lines and Loans			Residential Mortgage			Construction			Commercial and Industrial		Consumer			Leases			Unallocated			Total
Balance, June 30, 2012	$	3,384	$	1,749		$	1,636		$	1,112		$	3,789	$	180		$	535		$	755		$	13,140
Charge-offs		—		(315	)		(18	)		(197	)		—		(19	)		(69	)		—			(618	)
Recoveries		4		—			—			—			25		1			86			—			116
Provision for loan and lease losses		235		244			3			109			766		38			(85	)		(310	)		1,000
Balance, September 30, 2012	$	3,623	$	1,678		$	1,621		$	1,024		$	4,580	$	200		$	467		$	445		$	13,638

(dollars in thousands)	Commercial Mortgage			Home Equity Lines and Loans			Residential Mortgage			Construction			Commercial and Industrial			Consumer			Leases			Unallocated		Total
Balance, December 31, 2011	$	3,165		$	1,707		$	1,592		$	1,384		$	3,816		$	119		$	532		$	438	$	12,753
Charge-offs		(235	)		(328	)		(188	)		(896	)		(409	)		(61	)		(300	)		—		(2,417	)
Recoveries		4			—			—			—			91			5			199			—		299
Provision for loan and lease losses		689			299			217			536			1,082			137			36			7		3,003
Balance, September 30, 2012	$	3,623		$	1,678		$	1,621		$	1,024		$	4,580		$	200		$	467		$	445	$	13,638

The following table details the allocation of the Allowance by portfolio segment based on the methodology used to evaluate the loans and leases for impairment as of September 30, 2013 and December 31, 2012:

(dollars in thousands)	Commercial Mortgage		Home Equity Lines and Loans		Residential Mortgage		Construction		Commercial and Industrial		Consumer		Leases		Unallocated		Total
As of September 30, 2013
Allowance on loans and leases:
Individually evaluated for impairment	$	—	$	119	$	628	$	—	$	544	$	56	$	—	$	—	$	1,347
Collectively evaluated for impairment		4,474		2,067		1,470		668		3,886		202		571		334		13,672
Purchased credit-impaired(1)		8		—		—		—		—		—		—		—		8
Total	$	4,482	$	2,186	$	2,098	$	668	$	4,430	$	258	$	571	$	334	$	15,027
As of December 31, 2012
Allowance on loans and leases:
Individually evaluated for impairment	$	—	$	217	$	667	$	543	$	919	$	8	$	—	$	—	$	2,354
Collectively evaluated for impairment		3,894		1,640		1,357		451		3,718		181		493		299		12,033
Purchased credit-impaired(1)		13		—		—		25		—		—		—		—		38
Total	$	3,907	$	1,857	$	2,024	$	1,019	$	4,637	$	189	$	493	$	299	$	14,425

⁽¹⁾  Purchased credit-impaired loans are evaluated for impairment on an individual basis.

The following table details the carrying value for loans and leases by portfolio segment based on the methodology used to evaluate the loans and leases for impairment as of September 30, 2013 and December 31, 2012:

(dollars in thousands)	Commercial Mortgage		Home Equity Lines and Loans		Residential Mortgage		Construction		Commercial and Industrial		Consumer		Leases		Total
As of September 30, 2013
Carrying value of loans and leases:
Individually evaluated for impairment	$	421	$	2,066	$	9,539	$	3,072	$	4,228	$	82	$	—	$	19,408
Collectively evaluated for impairment		612,393		185,552		282,065		35,655		298,751		17,490		38,079		1,469,985
Purchased credit-impaired(1)		9,957		16		41		328		280		—		—		10,622
Total	$	622,771	$	187,634	$	291,645	$	39,055	$	303,259	$	17,572	$	38,079	$	1,500,015
As of December 31, 2012
Carrying value of loans and leases:
Individually evaluated for impairment	$	541	$	3,403	$	9,211	$	4,631	$	3,997	$	7	$	—	$	21,790
Collectively evaluated for impairment		535,506		191,439		278,951		20,785		287,367		17,659		32,831		1,364,538
Purchased credit-impaired(1)		10,311		19		50		1,492		256		—		—		12,128
Total	$	546,358	$	194,861	$	288,212	$	26,908	$	291,620	$	17,666	$	32,831	$	1,398,456

⁽¹⁾  Purchased credit-impaired loans are evaluated for impairment on an individual basis.

As part of the process of determining the Allowance for the different segments of the loan and lease portfolio, Management considers certain credit quality indicators. For the commercial mortgage, construction and commercial and industrial loan segments, periodic reviews of the individual loans are performed by both in-house staff as well as external loan reviewers. The result of these reviews is reflected in the risk grade assigned to each loan. These internally assigned grades are as follows:

• Pass - Loans considered satisfactory with no indications of deterioration.

• Special mention - Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date.

• Substandard - Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Substandard loans have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.

• Doubtful - Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.

In addition, for the remaining segments of the loan and lease portfolio, which include residential mortgage, home equity lines and loans, consumer, and leases, the credit quality indicator used to determine this component of the Allowance is based on performance status.

The following tables detail the carrying value of loans and leases by portfolio segment based on the credit quality indicators used to determine the Allowance as of September 30, 2013 and December 31, 2012:

	Credit Risk Profile by Internally Assigned Grade
(dollars in thousands)	Commercial Mortgage				Construction				Commercial and Industrial				Total
	September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012
Pass	$	615,742	$	538,470	$	35,518	$	16,504	$	294,194	$	278,167	$	945,454	$	833,141
Special Mention		3,771		2,215		—		1,317		2,265		6,256		6,036		9,788
Substandard		3,258		5,673		3,537		9,087		6,800		7,197		13,595		21,957
Total	$	622,771	$	546,358	$	39,055	$	26,908	$	303,259	$	291,620	$	965,085	$	864,886

	Credit Risk Profile by Payment Activity
(dollars in thousands)	Residential Mortgage				Home Equity Lines and Loans				Consumer				Leases				Total
	September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012		September 30, 2013		December 31, 2012
Performing	$	287,807	$	284,464	$	186,090	$	192,069	$	17,523	$	17,659	$	38,063	$	32,789	$	529,483	$	526,981
Non-performing		3,838		3,748		1,544		2,792		49		7		16		42		5,447		6,589
Total	$	291,645	$	288,212	$	187,634	$	194,861	$	17,572	$	17,666	$	38,079	$	32,831	$	534,930	$	533,570

G. Troubled Debt Restructurings (“TDRs”)

The restructuring of a loan is considered a “troubled debt restructuring” if both of the following conditions are met: (i) the borrower is experiencing financial difficulties, and (ii) the creditor has granted a concession. The most common concessions granted include one or more modifications to the terms of the debt, such as (a) a reduction in the interest rate for the remaining life of the debt, (b) an extension of the maturity date at an interest rate lower than the current market rate for new debt with similar risk, (c) a temporary period of interest-only payments, (d) a reduction in the contractual payment amount for either a short period or remaining term of the loan, and (e) for leases, a reduced lease payment. A less common concession granted is the forgiveness of a portion of the principal.

The determination of whether a borrower is experiencing financial difficulties takes into account not only the current financial condition of the borrower, but also the potential financial condition of the borrower, were a concession not granted. Similarly, the determination of whether a concession has been granted is very subjective in nature. For example, simply extending the term of a loan at its original interest rate or even at a higher interest rate could be interpreted as a concession unless the borrower could readily obtain similar credit terms from a different lender.

The following table presents the balance of TDRs as of the indicated dates:

(dollars in thousands)	September 30, 2013		December 31, 2012
TDRs included in nonperforming loans and leases	$	2,628	$	3,106
TDRs in compliance with modified terms		8,947		8,008
Total TDRs	$	11,575	$	11,114

The following tables present information regarding loan and lease modifications categorized as TDRs for the three and nine months ended September 30, 2013:

	For the Three Months Ended September 30, 2013
(dollars in thousands)	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding  Recorded Investment
Commercial and industrial		1	$	75	$	75
Consumer		1		33		33
Leases		2		18		18
Total		4	$	126	$	126

	For the Nine Months Ended September 30, 2013
(dollars in thousands)	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding  Recorded Investment
Residential mortgage		2	$	674	$	674
Home equity lines and loans		2		40		40
Commercial and industrial		2		930		930
Consumer		1		33		33
Leases		4		38		38
Total		11	$	1,715	$	1,715

The following tables presents information regarding the types of loan and lease modifications made for the three and nine months ended September 30, 2013:

	Number of Contracts for the Three Months Ended September 30, 2013
	Interest Rate Change		Loan Term Extension		Interest Rate Change and Term Extension		Interest-Only Period		Contractual Payment Reduction (Leases only)		Forgiveness of Interest
Commercial and industrial		—		—		—		1		—		—
Consumer		1		—		—		—		—		—
Leases		—		—		—		—		2		—
Total		1		—		—		1		2		—

	Number of Contracts for the Nine Months Ended September 30, 2013
	Interest Rate Change		Loan Term Extension		Interest Rate Change and Term Extension		Interest-Only Period		Contractual Payment Reduction (Leases only)		Forgiveness of Interest
Residential mortgage		—		—		1		—		—		1
Home equity lines and loans		1		—		—		1		—		—
Commercial and industrial		—		—		—		2		—		—
Consumer		1		—		—		—		—		—
Leases		—		—		—		—		4		—
Total		2		—		1		3		4		1

During the three and nine months ended September 30, 2013, there were no defaults of loans or leases that had been previously modified to troubled debt restructurings.

H. Impaired Loans

The following tables detail the recorded investment and principal balance of impaired loans by portfolio segment, their related Allowance and interest income recognized as of the dates or for the periods indicated:

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the three months ended September 30, 2013
Impaired loans with related Allowance:
Home equity lines and loans	$	544	$	589	$	119	$	619	$	5	$	—
Residential mortgage		4,448		4,419		628		4,485		28		—
Commercial and industrial		2,586		2,709		544		2,798		21		—
Consumer		82		82		56		84		1		—
Total	$	7,660	$	7,799	$	1,347	$	7,986	$	55	$	—
Impaired loans without related Allowance(1) (3):
Commercial mortgage	$	421	$	432	$	—	$	471	$	—	$	—
Home equity lines and loans		1,523		1,532		—		1,631		2		—
Residential mortgage		5,091		5,340		—		5,598		39		—
Construction		3,072		4,035		—		3,824		13		—
Commercial and industrial		1,641		1,812		—		1,817		1		—
Total	$	11,748	$	13,151	$	—	$	13,341	$	55	$	—
Grand total	$	19,408	$	20,950	$	1,347	$	21,327	$	110	$	—

⁽¹⁾  The table above does not include the recorded investment of $62 thousand of impaired leases without a related Allowance.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the nine months ended September 30, 2013
Impaired loans with related Allowance:
Home equity lines and loans	$	544	$	589	$	119	$	617	$	15	$	—
Residential mortgage		4,448		4,419		628		4,408		83		—
Commercial and industrial		2,586		2,709		544		2,823		53		—
Consumer		82		82		56		86		4		—
Total	$	7,660	$	7,799	$	1,347	$	7,934	$	155	$	—
Impaired loans without related Allowance(1) (3):
Commercial mortgage	$	421	$	432	$	—	$	471	$	—	$	—
Home equity lines and loans		1,523		1,532		—		1,631		2		—
Residential mortgage		5,091		5,340		—		5,598		39		—
Construction		3,072		4,035		—		3,824		13		—
Commercial and industrial		1,641		1,812		—		1,817		1		—
Total	$	11,748	$	13,151	$	—	$	13,341	$	55	$	—
Grand total	$	19,408	$	20,950	$	1,347	$	21,275	$	210	$	—

⁽¹⁾  The table above does not include the recorded investment of $62 thousand of impaired leases without a related Allowance.

⁽²⁾ Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the three months ended September 30, 2012
Impaired loans with related allowance:
Home equity lines and loans	$	1,152	$	1,210	$	203	$	1,211	$	—	$	—
Residential mortgage		1,708		1,716		229		1,716		7		—
Construction		3,678		3,694		698		5,313		—		—
Commercial and industrial		2,856		2,869		771		2,875		3		—
Consumer		19		21		19		21		—		—
Total	$	9,413	$	9,510	$	1,920	$	11,136	$	10	$	—
Impaired loans without related allowance(1) (3):
Commercial mortgage	$	343	$	364	$	—	$	364	$	—	$	—
Home equity lines and loans		1,727		1,795		—		2,050		1		—
Residential mortgage		7,992		8,311		—		8,324		68		—
Construction		1,317		1,317		—		1,446		15		—
Commercial and industrial		845		845		—		846		3		—
Total	$	12,224	$	12,632	$	—	$	13,030	$	87	$	—
Grand total	$	21,637	$	22,142	$	1,920	$	24,166	$	97	$	—

⁽¹⁾  The table above does not include the recorded investment of $223 thousand of impaired leases without a related allowance for loan and lease losses.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance		Average Principal Balance		Interest Income Recognized		Cash-Basis Interest Income Recognized
As of or for the nine months ended September 30, 2012
Impaired loans with related allowance:
Home equity lines and loans	$	1,152	$	1,210	$	203	$	1,211	$	—	$	—
Residential mortgage		1,708		1,716		229		1,718		22		—
Construction		3,678		3,694		698		5,444		—		—
Commercial and industrial		2,856		2,869		771		2,877		12		—
Consumer		19		21		19		23		—		—
Total	$	9,413	$	9,510	$	1,920	$	11,273	$	34	$	—
Impaired loans without related allowance(1) (3):
Commercial mortgage	$	343	$	364	$	—	$	364	$	4	$	—
Home equity lines and loans		1,727		1,795		—		2,042		3		—
Residential mortgage		7,992		8,311		—		8,231		204		—
Construction		1,317		1,317		—		1,376		44		—
Commercial and industrial		845		845		—		846		10		—
Total	$	12,224	$	12,632	$	—	$	12,859	$	265	$	—
Grand total	$	21,637	$	22,142	$	1,920	$	24,132	$	299	$	—

⁽¹⁾  The table above does not include the recorded investment of $223 thousand of impaired leases without a related allowance for loan and lease losses.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

⁽³⁾  This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

(dollars in thousands)	Recorded Investment(2)		Principal Balance		Related Allowance
As of December 31, 2012
Impaired loans with related Allowance:
Home equity lines and loans	$	1,261	$	1,321	$	217
Residential mortgage		4,778		4,793		667
Construction		2,564		2,564		543
Commercial and industrial		3,357		3,383		919
Consumer		7		8		8
Total	$	11,967	$	12,069	$	2,354
Impaired loans without related Allowance(1):
Commercial mortgage	$	541	$	574	$	—
Home equity lines and loans		2,142		2,223		—
Residential mortgage		4,433		4,741		—
Construction		2,067		2,317		—
Commercial and industrial		640		639		—
Total	$	9,823	$	10,494	$	—
Grand total	$	21,790	$	22,563	$	2,354

⁽¹⁾  The table above does not include the recorded investment of $168 thousand of impaired leases without a related Allowance.

⁽²⁾  Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net Income	$ 6,401	$ 5,425	$ 17,973	$ 15,843
Net change in unrealized (losses) gains on investment securities available for sale:
Net unrealized gains (losses) arising during the period, net of tax expense (benefit) of $26, $657, ($1,742) and $1,416, respectively	50	1,221	(3,236)	2,630
Less: reclassification adjustment for net gains on sales realized in net income, net of tax expense of $0, $146, $1 and $396, respectively		(270)	(1)	(736)
Unrealized investment gains (losses), net of tax expense (benefit) of $26, $166, ($1,743) and $1,020, respectively	50	951	(3,237)	1,894
Net change in fair value of derivative used for cash flow hedge:
Change in fair value of hedging instruments, net of tax expense of $0, $0, $324 and $0, respectively			601
Net change in unfunded pension liability:
Change in unfunded pension liability related to unrealized loss, prior service cost and transition obligation, net of tax expense of $133, $146, $399 and $438, respectively	246	272	741	816
Change in unfunded pension liability related to curtailment, net of tax expense of $0, $0, $627 and $0, respectively			1,164
Total change in unfunded pension liability, net of tax expense of $133, $146, $1,026 and $438, respectively	246	272	1,905	816
Total other comprehensive income (loss)	296	1,223	(731)	2,710
Total comprehensive income	$ 6,697	$ 6,648	$ 17,242	$ 18,553

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Schedule of Changes in Accretable Discount on Purchased Credit-Impaired Loans (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Balance, December 31, 2012	$ 8,025
Accretion	(1,404)
Reclassifications from nonaccretable difference	998
Additions/adjustments	(257)
Disposals	(886)
Balance, September 30, 2013	$ 6,476

XML

Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 24,958	$ 16,203
Interest-bearing deposits with banks	71,203	159,483
Cash and cash equivalents	96,161	175,686
Investment securities available for sale, at fair value (amortized cost of $320,030 and $311,747 as of September 30, 2013 and December 31, 2012 respectively)	319,917	316,614
Investment securities, trading	2,357	1,447
Loans held for sale	1,284	3,412
Portfolio loans and leases	1,500,015	1,398,456
Less: Allowance for loan and lease losses	(15,027)	(14,425)
Net portfolio loans and leases	1,484,988	1,384,031
Premises and equipment, net	31,436	31,170
Accrued interest receivable	5,703	5,955
Deferred income taxes	11,955	12,303
Mortgage servicing rights	4,744	4,491
Bank owned life insurance	20,132	19,862
FHLB stock	12,590	10,761
Goodwill	32,843	32,897
Intangible assets	20,020	21,998
Other investments	4,337	4,346
Other assets	10,506	10,912
Total assets	2,058,973	2,035,885
Deposits:
Non-interest-bearing	394,947	399,673
Interest-bearing	1,155,709	1,235,009
Total deposits	1,550,656	1,634,682
Short-term borrowings	75,588	9,403
Long-term FHLB advances and other borrowings	191,645	161,315
Accrued interest payable	842	1,233
Other liabilities	22,481	25,688
Total liabilities	1,841,212	1,832,321
Shareholders' equity
Common stock, par value $1; authorized 100,000,000 shares; issued 16,527,323 and 16,390,608 shares as of September 30, 2013 and December 31, 2012, respectively, and outstanding of 13,551,438 and 13,412,690 as of September 30, 2013 and December 31, 2012, respectively	16,527	16,390
Paid-in capital in excess of par value	93,129	89,137
Less: Common stock in treasury at cost - 2,975,885 and 2,977,918 shares as of September 30, 2013 and December 31, 2012, respectively	(31,042)	(30,745)
Accumulated other comprehensive loss, net of tax benefit	(10,809)	(10,078)
Retained earnings	149,956	138,860
Total shareholders' equity	217,761	203,564
Total liabilities and shareholders' equity	$ 2,058,973	$ 2,035,885

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Amortized Cost and Fair Value of Available for Sale Investment Securities (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 9,046		$ 10,571
Due after one year through five years, Amortized Cost	53,240		38,056
Due after five years through ten years, Amortized Cost	59,537		40,635
Due after ten years, Amortized Cost	14,291		18,415
Mortgage-related securities, Amortized Cost	170,573	[1]	190,653	[1]
Total maturing investments, Amortized Cost	306,687		298,330
Bond mutual funds and other non-maturity investments, Amortized Cost	13,343		13,417
Total	320,030		311,747
Due in one year or less, Fair Value	9,049		10,590
Due after one year through five years, Fair Value	53,248		38,171
Due after five years through ten years, Fair Value	58,144		40,714
Due after ten years, Fair Value	14,281		19,044
Mortgage-related securities, Fair Value	171,606	[1]	194,529	[1]
Total maturing investments, Fair Value	306,328		303,048
Bond mutual funds and other non-maturity investments, Fair Value	13,589		13,566
Total	$ 319,917		$ 316,614

[1] Expected maturities of mortgage-related securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

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Schedule of Information about Unvested Options (Detail) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance, Number of Shares	80,106	80,756
Granted, Shares	11,475	11,475
Vested, Shares	(61,435)	(61,435)
Forfeited, Shares		(650)
Balance, Number of Shares	30,146	30,146
Unvested options, Weighted Average Exercise Price	$ 19.89	$ 19.89
Granted, Weighted Average Exercise Price	$ 21.24	$ 21.24
Vested, Weighted Average Exercise Price	$ 20.93	$ 20.93
Forfeited, Weighted Average Exercise Price		$ 19.65
Unvested options, Weighted Average Exercise Price	$ 18.27	$ 18.27
Balance, Weighted Average Grant Date Fair Value	$ 4.65	$ 4.65
Granted, Weighted Average Grant Date Fair Value	$ 4.83	$ 4.83
Vested, Weighted Average Grant Date Fair Value	$ 4.79	$ 4.79
Forfeited, Weighted Average Grant Date Fair Value		$ 4.62
Balance, Weighted Average Grant Date Fair Value	$ 4.42	$ 4.42

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Derivatives and Hedging Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Derivative [Line Items]
Effective Date	Nov. 30, 2015	Nov. 30, 2015
Maturity Date	Nov. 28, 2022	Nov. 28, 2022
Federal Home Loan Bank Borrowings
Derivative [Line Items]
FHLB borrowing		$ 15

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Business Combinations (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Consideration Paid and Fair Value of Identifiable Assets Acquired and Liabilities Assumed

In connection with the FBD Transaction, 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:

(dollars in thousands)
Consideration paid:
Cash	$	10,559
Value of consideration		10,559
Assets acquired:
Cash and due from banks		525
Loans		76,556
Premises and equipment		460
Core deposit intangible		320
Other assets		256
Total assets		78,117
Liabilities assumed:
Nonmaturity deposits		27,080
Time deposits		43,257
Unfavorable lease		140
Other liabilities		390
Total liabilities		70,867
Net assets acquired		7,250
Goodwill resulting from the FBD Transaction	$	3,309

 In connection with the DTC acquisition, 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:

(dollars in thousands)
Consideration paid:
Cash	$	9,450
Contingent payment liability		1,050
Value of consideration		10,500
Assets acquired:
Cash operating accounts		1,433
Other assets		201
Intangible asset - customer relationships		3,720
Intangible asset - noncompetition agreements		1,385
Intangible asset - brand		970
Premises and equipment		117
Deferred tax asset		839
Total assets		8,665
Liabilities assumed:
Deferred tax liability		2,125
Miscellaneous liabilities		885
Total liabilities		3,010
Net assets acquired		5,655
Goodwill resulting from acquisition of DTC	$	4,845

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Accumulated Other Comprehensive Loss

9 Months Ended

Sep. 30, 2013

Accumulated Other Comprehensive Loss

Note 14 - Accumulated Other Comprehensive Loss

The following tables detail the components of accumulated other comprehensive (loss) income for the three and nine month periods ended September 30, 2013 and 2012:

(dollars in thousands)	Net Change in Unrealized  Gains on Available-for- Sale Investment Securities			Net Change in Fair  Value of Derivative Used for  Cash Flow Hedge		Net Change  in Unfunded Pension Liability			Accumulated Other Comprehensive Loss
Balance, June 30, 2013	$	(123	)	$	577	$	(11,559	)	$	(11,105	)
Net change		50			—		246			296
Balance, September 30, 2013	$	(73	)	$	577	$	(11,313	)	$	(10,809	)
Balance, June 30, 2012	$	2,735		$	—	$	(12,613	)	$	(9,878	)
Net change		951			—		272			1,223
Balance, September 30, 2012	$	3,686		$	—	$	(12,341	)	$	(8,655	)

(dollars in thousands)	Net Change in Unrealized  Gains on Available-for- Sale Investment Securities			Net Change in Fair  Value of Derivative Used for  Cash Flow Hedge			Net Change  in Unfunded Pension Liability			Accumulated Other Comprehensive Loss
Balance, December 31, 2012	$	3,164		$	(24	)	$	(13,218	)	$	(10,078	)
Net change		(3,237	)		601			1,905			(731	)
Balance, September 30, 2013	$	(73	)	$	577		$	(11,313	)	$	(10,809	)
Balance, December 31, 2011	$	1,792		$	—		$	(13,157	)	$	(11,365	)
Net change		1,894			—			816			2,710
Balance, September 30, 2012	$	3,686		$	—		$	(12,341	)	$	(8,655	)

The following tables detail the amounts reclassified from each component of accumulated other comprehensive loss for the three and nine month periods ended September 30, 2013 and 2012:

Description of Accumulated Other Comprehensive Loss Component	Amount Reclassified from Accumulated Other Comprehensive Loss					Affected Income Statement Category
	For The Three Months Ended September 30,
	2013		2012
Net unrealized gain on investment securities available for sale:
Realization of gain on sale of investment securities available for sale	$	—	$	(416	)	Net gain on sale of available for sale investment securities
		—		(146	)	Less: income tax expense
	$	—	$	(270	)	Net of income tax
Unfunded pension liability:
Amortization of net loss included in net periodic pension costs*	$	463	$	488		Employee benefits
Amortization of prior service cost included in net periodic pension costs*		3		21		Employee benefits
Amortization of transition obligation included in net periodic pension costs*		—		7		Employee benefits
		466		516		Total expense before income tax benefit
		163		181		Less: income tax benefit
	$	303	$	335		Net of income tax

Description of Accumulated Other Comprehensive Loss Component	Amount Reclassified  from Accumulated Other Comprehensive Loss						Affected Income Statement Category
	For The  Nine Months Ended September 30,
	2013			2012
Net unrealized gain on investment securities available for sale:
Realization of gain on sale of investment securities available for sale	$	(2	)	$	(1,132	)	Net gain on sale of available for sale investment securities
		(1	)		(396	)	Less: income tax expense
	$	(1	)	$	(736	)	Net of income tax
Unfunded pension liability:
Amortization of net loss included in net periodic pension costs*	$	1,390		$	1,466		Employee benefits
Amortization of prior service cost included in net periodic pension costs*		10			62		Employee benefits
Amortization of transition obligation included in net periodic pension costs*		—			20		Employee benefits
Gain on curtailment of SERP II		(690	)		—		Net gain on curtailment of nonqualified pension plan
		710			1,548		Total expense before income tax benefit
		249			703		Less: income tax benefit
	$	461		$	845		Net of income tax

* Accumulated other comprehensive loss components are included in the computation of net periodic pension cost. See Note 10 - Pension and Other Post-Retirement Benefit Plans

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Business Combinations - Additional Information (Detail) (USD $)	9 Months Ended				3 Months Ended	9 Months Ended		1 Months Ended		1 Months Ended			9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 Core deposit intangible	Sep. 30, 2013 First Bank Of Delaware	Sep. 30, 2013 First Bank Of Delaware Core deposit intangible	Jun. 30, 2013 Davidson Trust Company	Sep. 30, 2013 Davidson Trust Company	Sep. 30, 2013 Davidson Trust Company Wealth Management	Nov. 14, 2012 Davidson Trust Company First Payment	Sep. 30, 2013 Davidson Trust Company First Payment	May 14, 2013 Davidson Trust Company Second Payment	Sep. 30, 2013 Davidson Trust Company Second Payment	Sep. 30, 2013 Davidson Trust Company Third Payment	Sep. 30, 2013 Davidson Trust Company Customer relationships	Sep. 30, 2013 Davidson Trust Company Non competition agreements
Business Acquisition [Line Items]
Business acquisition date			Nov. 17, 2012			May 15, 2012
Total capitalization of First Bank of Delaware			$ 250,000,000
Intangible assets, useful life, in years		10 years		10 years									10 years	5 years
Contingent payable amount									1,050,000		1,050,000	1,050,000
Contingent payments date									Nov. 14, 2012		May 14, 2013	Nov. 14, 2013
Payment of contingent consideration								1,050,000		1,050,000
Amount of future contingent payment												1,050,000
Corporation's wealth management divisions assets increased under management							1,000,000,000
Increase in Deferred tax asset					54,000
Decrease in goodwill	$ (54,000)					$ (54,000)

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Stock-Based Compensation - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Apr. 28, 2010	Apr. 25, 2007	Sep. 30, 2013 Stock Options	Sep. 30, 2013 Stock Options	Sep. 30, 2013 Restricted Stock Awards	Sep. 30, 2013 Restricted Stock Awards	Sep. 30, 2013 Performance Stock Awards	Sep. 30, 2013 Performance Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock award for grants		445,002	428,996
Maximum earnings, percentage	100.00%
Stock award expenses				$ 65	$ 153	$ 34	$ 163	$ 46	$ 299
Not-yet-recognized compensation expense of unvested award				89	89	570	570	1,700	1,700
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition					10 months 24 days		1 year 9 months 18 days		2 years 1 month 6 days
Excess tax benefit to additional paid in capital related to vesting of restricted stock awards						$ 8	$ 12	$ 320	$ 320

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Non-Performing Loans and Leases (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	$ 10,613	[1]	$ 14,040	[1]
Total nonperforming loans and leases	10,613	[1]	14,768	[1]
Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	511	[1]	631	[1]
Home equity lines and loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	1,544	[1]	2,792	[1]
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	3,838	[1]	3,748	[1]
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	1,661	[1]	3,314	[1]
Loans and leases 90 days or more past due and still accruing			728	[1]
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	2,994	[1]	3,506	[1]
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	49	[1]	7	[1]
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans and leases	$ 16	[1]	$ 42	[1]

[1] Purchased credit-impaired loans, which have been recorded at their fair values at acquisition, and which are performing, are excluded from this table, with the exception of $90 thousand of purchased credit-impaired loans as of both September 30, 2013 and December 31, 2012, which became non-performing subsequent to acquisition.

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Loan and Lease Modifications Categorized as Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013 Contract	Sep. 30, 2013 Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	4	11
Pre-Modification Outstanding Recorded Investment	$ 126	$ 1,715
Post-Modification Outstanding Recorded Investment	126	1,715
Residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Contracts		2
Pre-Modification Outstanding Recorded Investment		674
Post-Modification Outstanding Recorded Investment		674
Home equity lines and loans
Financing Receivable, Modifications [Line Items]
Number of Contracts		2
Pre-Modification Outstanding Recorded Investment		40
Post-Modification Outstanding Recorded Investment		40
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	2
Pre-Modification Outstanding Recorded Investment	75	930
Post-Modification Outstanding Recorded Investment	75	930
Leases
Financing Receivable, Modifications [Line Items]
Number of Contracts	2	4
Pre-Modification Outstanding Recorded Investment	18	38
Post-Modification Outstanding Recorded Investment	18	38
Consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1
Pre-Modification Outstanding Recorded Investment	33	33
Post-Modification Outstanding Recorded Investment	$ 33	$ 33

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Mortgage Servicing Rights (Tables)

9 Months Ended

Sep. 30, 2013

Summarized Corporation's Activity Related to MSRs

The following tables summarize the Corporation’s activity related to mortgage servicing rights (“MSRs”) for the three and nine months ended September 30, 2013 and 2012:

	Three Months Ended September 30,
(dollars in thousands)	2013			2012
Balance, beginning of period	$	4,790		$	4,220
Additions		174			385
Amortization		(187	)		(243	)
Recovery		—			—
Impairment		(33	)		(105	)
Balance, end of period	$	4,744		$	4,257
Fair value	$	5,622		$	4,279
Loans serviced for others	$	627,058		$	583,859

	Nine Months Ended September 30,
(dollars in thousands)	2013			2012
Balance, beginning of period	$	4,491		$	4,041
Additions		883			1,016
Amortization		(617	)		(718	)
Recovery		91			109
Impairment		(104	)		(191	)
Balance, end of period	$	4,744		$	4,257
Fair value	$	5,622		$	4,279
Loans serviced for others	$	627,058		$	583,859

Other MSR Information

As of September 30, 2013 and December 31, 2012, key economic assumptions and the sensitivity of the current fair value of MSRs to immediate 10 and 20 percent adverse changes in those assumptions are as follows:

(dollars in thousands)	September 30, 2013			December 31, 2012
Fair value amount of MSRs	$	5,622		$	4,638
Weighted average life (in years)		6.1			4.8
Prepayment speeds (constant prepayment rate)*		11.9			15.9
Impact on fair value:
10% adverse change	$	(220	)	$	(230	)
20% adverse change	$	(426	)	$	(442	)
Discount rate		10.50	%		10.50	%
Impact on fair value:
10% adverse change	$	(220	)	$	(158	)
20% adverse change	$	(424	)	$	(306	)

* Represents the weighted average prepayment rate for the life of the MSR asset.

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Derivatives and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2013

Derivatives and Hedging Activities

The following table details the Corporation’s derivative positions as of the balance sheet dates indicated:

As of September 30, 2013:

(dollars in thousands)

Current

Fair Value of

Notional Amount

Trade Date

Effective Date

Maturity Date

Receive (Variable) Index

Projected Receive Rate

Pay Fixed Swap Rate

Derivative Position

$

15,000

12/13/2012

11/30/2015

11/28/2022

US 3-Month LIBOR

3.301

%

2.376

%

$

889

As of December 31, 2012:

(dollars in thousands)

Current

Fair Value of

Notional Amount

Trade Date

Effective Date

Maturity Date

Receive (Variable) Index

Projected Receive Rate

Pay Fixed Swap Rate

Derivative Position

$

15,000

12/13/2012

11/30/2015

11/28/2022

US 3-Month LIBOR

2.338

%

2.376

%

$

(36

)

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Information about Options Outstanding

The following table provides information about options outstanding for the three months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Options outstanding, June 30, 2013		688,476		$	20.69	$	4.69
Granted		11,475		$	21.24	$	4.83
Forfeited		—		$	—	$	—
Expired		(250	)	$	22.00	$	4.90
Exercised		(39,600	)	$	20.45	$	4.64
Options outstanding, September 30, 2013		660,101		$	20.72	$	4.70

The following table provides information about options outstanding for the nine months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Options outstanding, December 31, 2012		784,226		$	20.40	$	4.62
Granted		11,475		$	21.24	$	4.83
Forfeited		(650	)	$	19.65	$	4.62
Expired		(250	)	$	22.00	$	4.90
Exercised		(134,700	)	$	18.93	$	4.22
Options outstanding, September 30, 2013		660,101		$	20.72	$	4.70

Schedule of Information about Unvested Options

The following table provides information about unvested options for the three months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Unvested options, June 30, 2013		80,106		$	19.89	$	4.65
Granted		11,475		$	21.24	$	4.83
Vested		(61,435	)	$	20.93	$	4.79
Forfeited		—		$	—	$	—
Unvested options, September 30, 2013		30,146		$	18.27	$	4.42

The following table provides information about unvested options for the nine months ended September 30, 2013:

	Shares			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Unvested options, December 31, 2012		80,756		$	19.89	$	4.65
Granted		11,475		$	21.24	$	4.83
Vested		(61,435	)	$	20.93	$	4.79
Forfeited		(650	)	$	19.65	$	4.62
Unvested options, September 30, 2013		30,146		$	18.27	$	4.42

Schedule of Related Tax Benefits Realized from Options Exercised and Intrinsic Value of Options Exercised

Proceeds, related tax benefits realized from options exercised and intrinsic value of options exercised during the three months ended September 30, 2013 and 2012 are detailed below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands)	2013		2012		2013		2012
Proceeds from exercise of stock options	$	810	$	162	$	2,550	$	1,362
Related tax benefit recognized		75		27		231		107
Net proceeds of options exercised	$	885	$	189	$	2,781	$	1,469
Intrinsic value of options exercised	$	215	$	38	$	661	$	269

Schedule of Information about Options Outstanding and Exercisable

The following table provides information about options outstanding and exercisable at September 30, 2013:

(dollars in thousands, except exercise price)	Outstanding		Exercisable
Number of shares		660,101		629,955
Weighted average exercise price	$	20.72	$	20.83
Aggregate intrinsic value	$	4,127	$	3,865
Weighted average contractual term in years		3.3		3.1

Schedule of Unvested Restricted Stock Awards

The following table details the unvested RSAs for the three and nine months ended September 30, 2013:

	Three Months  Ended September 30, 2013					Nine Months  Ended September 30, 2013
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value
Beginning balance		46,815		$	18.89		56,631		$	19.15
Granted		6,665			22.50		6,665			22.50
Vested		(2,980	)		16.78		(9,115	)		19.20
Forfeited		—			—		(3,681	)		20.38
Ending balance		50,500		$	19.49		50,500		$	19.49

Schedule of Unvested Performance Stock Awards

The following table details the unvested PSAs for the three and nine months ended September 30, 2013:

	Three Months  Ended September 30, 2013					Nine Months  Ended September 30, 2013
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Shares			Weighted Average Grant Date Fair Value
Beginning balance		184,191		$	10.62		185,766		$	10.62
Granted		75,714			13.36		75,714			13.36
Vested		(54,925	)		9.64		(54,925	)		9.64
Forfeited		—			—		(1,575	)		10.77
Ending balance		204,980		$	11.90		204,980		$	11.90

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Investment Securities

9 Months Ended

Sep. 30, 2013

Investment Securities

Note 4 - Investment Securities

The amortized cost and estimated fair value of investment securities available for sale are as follows:

As of September 30, 2013

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
U.S. Treasury securities	$	102	$	—	$	(1	)	$	101
Obligations of U.S. government agencies		92,128		247		(1431	)		90,944
Obligations of state & political subdivisions		40,273		115		(323	)		40,065
Mortgage-backed securities		123,161		1,909		(787	)		124,283
Collateralized mortgage obligations		47,412		268		(357	)		47,323
Other investments		16,954		248		(1	)		17,201
Total	$	320,030	$	2,787	$	(2,900	)	$	319,917

As of December 31, 2012

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Obligations of U.S. government agencies	$	73,183	$	796	$	(107	)	$	73,872
Obligations of state & political subdivisions		30,244		199		(59	)		30,384
Mortgage-backed securities		128,537		3,302		(13	)		131,826
Collateralized mortgage obligations		62,116		622		(35	)		62,703
Other investments		17,667		162		—			17,829
Total	$	311,747	$	5,081	$	(214	)	$	316,614

The following tables detail the amount of investment securities available for sale that were in an unrealized loss position as of the dates indicated:

As of September 30, 2013:

(dollars in thousands)	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Treasury securities	$	101	$	(1	)	$	—	$	—		$	101	$	(1	)
Obligations of U.S. Government agencies		53,631		(1,431	)		—		—			53,631		(1,431	)
Obligations of state & political subdivisions		19,108		(310	)		515		(13	)		19,623		(323	)
Mortgage-backed securities		43,210		(787	)		—		—			43,210		(787	)
Collateralized mortgage obligations		20,853		(353	)		1,091		(4	)		21,944		(357	)
Other investments		1,899		(1	)		—		—			1,899		(1	)
Total	$	138,802	$	(2,883	)	$	1,606	$	(17	)	$	140,408	$	(2,900	)

As of December 31, 2012:

(dollars in thousands)	Less than 12 Months					12 Months or Longer				Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Obligations of U.S. Government agencies	$	20,032	$	(107	)	$	—	$	—	$	20,032	$	(107	)
Obligations of state & political subdivisions		10,752		(59	)		—		—		10,752		(59	)
Mortgage-backed securities		12,602		(13	)		—		—		12,602		(13	)
Collateralized mortgage obligations		10,040		(35	)		—		—		10,040		(35	)
Total	$	53,426	$	(214	)	$	—	$	—	$	53,426	$	(214	)

Management evaluates the Corporation’s investment securities available for sale that are in an unrealized loss position in order to determine if the decline in market value is other than temporary. The available for sale investment portfolio includes debt securities issued by U.S. Government agencies, U.S. Government-sponsored agencies, state and local municipalities and other issuers. All fixed income investment securities in the Corporation’s available for sale investment portfolio are rated as investment grade. Factors considered in the evaluation include the current economic climate, the length of time and the extent to which the fair value has been below cost, interest rates and the bond rating of each security. The unrealized losses presented in the tables above are temporary in nature and are primarily related to market interest rates rather than the underlying credit quality of the issuers. The Corporation does not believe that these unrealized losses are other-than-temporary. The Corporation does not intend to sell these securities prior to their maturity or the recovery of their cost bases and believes that it is more likely than not that it will not have to sell these securities prior to their maturity or the recovery of their cost bases.

As of September 30, 2013 and December 31, 2012, securities having market values of $97.4 million and $108.7 million, respectively, were specifically pledged as collateral for public funds, trust deposits, the Federal Reserve Bank of Philadelphia discount window program, Federal Home Loan Bank of Pittsburgh (“FHLB”) borrowings and other purposes. The FHLB has a blanket lien on non-pledged, mortgage-related loans and securities as part of the Bank’s borrowing agreement with the FHLB.

The amortized cost and fair value of investment securities available for sale as of September 30, 2013 and December 31, 2012, by contractual maturity, are shown below:

	September 30, 2013				December 31, 2012
(dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	9,046	$	9,049	$	10,571	$	10,590
Due after one year through five years		53,240		53,248		38,056		38,171
Due after five years through ten years		59,537		58,144		40,635		40,714
Due after ten years		14,291		14,281		18,415		19,044
Mortgage-related securities*		170,573		171,606		190,653		194,529
Total maturing investments		306,687		306,328		298,330		303,048
Bond mutual funds and other non-maturity investments		13,343		13,589		13,417		13,566
Total	$	320,030	$	319,917	$	311,747	$	316,614

* Expected maturities of mortgage-related securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

As of September 30, 2013 and December 31, 2012, the Corporation’s investment securities held in trading accounts were comprised of a deferred compensation trust which is invested in marketable securities whose diversification is at the discretion of the deferred compensation plan participants.

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Carrying Value for Loans and Leases by Portfolio Segment Based on Methodology Used to Evaluate Loans and Leases for Impairment (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	$ 1,500,015		$ 1,398,456
Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	622,771		546,358
Home equity lines and loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	187,634		194,861
Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	291,645		288,212
Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	39,055		26,908
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	303,259		291,620
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	17,572		17,666
Leases
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	38,079		32,831
Carrying value of loans and leases
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	19,408		21,790
Collectively evaluated for impairment	1,469,985		1,364,538
Purchased credit-impaired	10,622	[1]	12,128	[1]
Total	1,500,015		1,398,456
Carrying value of loans and leases | Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	421		541
Collectively evaluated for impairment	612,393		535,506
Purchased credit-impaired	9,957	[1]	10,311	[1]
Total	622,771		546,358
Carrying value of loans and leases | Home equity lines and loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	2,066		3,403
Collectively evaluated for impairment	185,552		191,439
Purchased credit-impaired	16	[1]	19	[1]
Total	187,634		194,861
Carrying value of loans and leases | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	9,539		9,211
Collectively evaluated for impairment	282,065		278,951
Purchased credit-impaired	41	[1]	50	[1]
Total	291,645		288,212
Carrying value of loans and leases | Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	3,072		4,631
Collectively evaluated for impairment	35,655		20,785
Purchased credit-impaired	328	[1]	1,492	[1]
Total	39,055		26,908
Carrying value of loans and leases | Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	4,228		3,997
Collectively evaluated for impairment	298,751		287,367
Purchased credit-impaired	280	[1]	256	[1]
Total	303,259		291,620
Carrying value of loans and leases | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	82		7
Collectively evaluated for impairment	17,490		17,659
Total	17,572		17,666
Carrying value of loans and leases | Leases
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	38,079		32,831
Total	$ 38,079		$ 32,831

[1] Purchased credit-impaired loans are evaluated for impairment on an individual basis.

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Summary of Key Economic Assumptions and Sensitivity of Current Fair Value of MSRs (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2012
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Fair value amount of MSRs	$ 5,622		$ 4,638		$ 4,279
Weighted average life (in years)	6 years 1 month 6 days		4 years 9 months 18 days
Prepayment speeds (constant prepayment rate)	11.90%	[1]	15.90%	[1]
10% adverse change	(220)		(230)
20% adverse change	(426)		(442)
Discount rate	10.50%		10.50%
10% adverse change	(220)		(158)
20% adverse change	$ (424)		$ (306)

[1] Represents the weighted average prepayment rate for the life of the MSR asset.

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Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2013

Calculation of Basic and Diluted Earnings per Share

All weighted-average shares, actual shares and per share information in the financial statements have been adjusted retroactively for the effect of stock dividends and stock splits.

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands except per share data)	2013		2012		2013		2012
Numerator:
Net income available to common shareholders	$	6,401	$	5,425	$	17,973	$	15,843
Denominator for basic earnings per share - weighted average shares outstanding		13,336,799		13,149,050		13,274,801		13,067,551
Effect of dilutive common shares		275,343		146,377		244,302		133,799
Denominator for diluted earnings per share - adjusted weighted average shares outstanding		13,612,142		13,295,427		13,519,103		13,201,350
Basic earnings per share	$	0.48	$	0.41	$	1.35	$	1.21
Diluted earnings per share	$	0.47	$	0.41	$	1.33	$	1.20
Antidilutive shares excluded from computation of average dilutive earnings per share		—		227,139		123,882		349,649

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Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2013

Summary of Fair Value of Assets Measured on a Recurring and Non-Recurring Basis

The following tables summarize the assets at September 30, 2013 and December 31, 2012 that are recognized on the Corporation’s balance sheet using fair value measurement determined based on the differing levels of input.

Fair value of assets measured on a recurring and non-recurring basis as of September 30, 2013:

(dollars in millions)	Total		Level 1		Level 2		Level 3
Assets Measured at Fair Value on a Recurring Basis:
Investment securities available for sale:
U.S. Treasury securities	$	0.1	$	0.1	$	—	$	—
Obligations of the U.S. government agencies		90.9		—		90.9		—
Obligations of state & political subdivisions		40.1		—		40.1		—
Mortgage-backed securities		124.3		—		124.3		—
Collateralized mortgage obligations		47.3		—		47.3		—
Mutual funds		11.5		11.5		—		—
Other investments		5.7		—		5.7		—
Total investment securities available for sale		319.9		11.6		308.3		—
Trading securities		2.4		—		2.4		—
Total assets measured on a recurring basis at fair value	$	322.3	$	11.6	$	310.7	$	—
Assets Measured at Fair Value on a Non-Recurring Basis
Mortgage servicing rights	$	0.8	$	—	$	—	$	0.8
Impaired loans and leases		18.1		—		—		18.1
Other real estate owned (“OREO”)		1.3		—		—		1.3
Total assets measured on a non-recurring basis at fair value	$	20.2	$	—	$	—	$	20.2

Fair value of assets measured on a recurring and non-recurring basis as of December 31, 2012:

(dollars in millions)	Total		Level 1		Level 2		Level 3
Assets Measured at Fair Value on a Recurring Basis:
Investment securities available for sale:
Obligations of the U.S. government agencies	$	73.9	$	—	$	73.9	$	—
Obligations of state & political subdivisions		30.4		—		30.4		—
Mortgage-backed securities		131.8		—		131.8		—
Collateralized mortgage obligations		62.7		—		62.7		—
Mutual funds		13.6		13.6		—		—
Other investments		4.2		—		4.2		—
Total investment securities available for sale		316.6		13.6		303.0		—
Trading securities		1.4		—		1.4		—
Total assets measured on a recurring basis at fair value	$	318.0	$	13.6	$	304.4	$	—
Assets Measured at Fair Value on a Non-Recurring Basis
Mortgage servicing rights	$	0.9	$	—	$	—	$	0.9
Impaired loans and leases		19.7		—		—		19.7
OREO		0.9		—		—		0.9
Total assets measured on a non-recurring basis at fair value	$	21.5	$	—	$	—	$	21.5

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Borrowings

9 Months Ended

Sep. 30, 2013

Borrowings

Note 7 - Borrowings

A. Short-term borrowings

The Corporation’s short-term borrowings (original maturity of one year or less), which consist of a revolving line of credit with a correspondent bank, funds obtained from overnight repurchase agreements with commercial customers, FHLB advances with original maturities of one year or less and overnight fed funds, are detailed below.

A summary of short-term borrowings is as follows:

(dollars in thousands)	September 30, 2013		December 31, 2012
Overnight fed funds	$	25,000	$	—
Short-term FHLB advances		38,000		—
Repurchase agreements		12,588		9,403
Total short-term borrowings	$	75,588	$	9,403

The following table sets forth information concerning short-term borrowings:

(dollars in thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Balance at period-end	$	75,588		$	19,029		$	75,588		$	19,029
Maximum amount outstanding at any month-end		75,588			19,029			75,588			19,029
Average balance outstanding during the period		14,995			13,695			13,455			13,621
Weighted-average interest rate:
As of period-end		0.33	%		0.44	%		0.34	%		0.44	%
Paid during the period		0.15	%		0.16	%		0.12	%		0.17	%

B. Long-term FHLB Advances and Other Borrowings

The Corporation’s long-term FHLB advances and other borrowings consist of advances from the FHLB with original maturities of greater than one year and an adjustable-rate commercial loan from a correspondent bank.

The following table presents the remaining periods until maturity of the long-term FHLB advances and other borrowings:

(dollars in thousands)	September 30, 2013		December 31, 2012
Within one year	$	3,903	$	35,458
Over one year through five years		172,742		104,244
Over five years through ten years		15,000		21,613
Total	$	191,645	$	161,315

The following table presents rate and maturity information on long-term FHLB advances and other borrowings:

(dollars in thousands)	Maturity Range(1)				Weighted Average Rate			Interest Rate						Balance
Description	From		To					From			To			September 30, 2013		December 31, 2012
Fixed amortizing		04/08/15		04/08/15		3.61	%		3.61	%		3.61	%	$	2,485	$	4,285
Adjustable amortizing		12/31/16		12/31/16		3.25	%		3.25	%		3.25	%		7,637		9,400
Bullet maturity - fixed rate		03/23/15		12/19/19		1.40	%		0.58	%		2.44	%		135,000		90,000
Bullet maturity - variable rate		06/25/15		11/18/17		0.46	%		0.46	%		0.46	%		25,000		15,000
Convertible-fixed(2)		01/03/18		08/20/18		2.47	%		2.21	%		2.62	%		21,523		42,630
Total														$	191,645	$	161,315

⁽¹⁾ Maturity range refers to September 30, 2013 balances

⁽²⁾ FHLB advances whereby the FHLB has the option, at predetermined times, to convert the fixed interest rate to an adjustable interest rate indexed to the London Interbank Offered Rate (“LIBOR”). The Corporation has the option to prepay these advances, without penalty, if the FHLB elects to convert the interest rate to an adjustable rate. As of September 30, 2013, substantially all the FHLB advances with this convertible feature are subject to conversion in fiscal 2013. These advances are included in the maturity ranges in which they mature, rather than the period in which they are subject to conversion.

C. Other Borrowings Information

As of September 30, 2013 the Corporation had a maximum borrowing capacity with the FHLB of approximately $826.4 million, of which the unused capacity was $589.9 million. In addition, there were unused capacities of $39.0 million in overnight federal funds line, $88.5 million of Federal Reserve Discount Window borrowings and $3.0 million in a revolving line of credit from a correspondent bank as of September 30, 2013. In connection with its FHLB borrowings, the Corporation is required to hold the capital stock of the FHLB. The amount of FHLB capital stock held was $12.6 million at September 30, 2013, and $10.8 million at December 31, 2012. The carrying amount of the FHLB capital stock approximates its redemption value.

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Goodwill and Intangible Assets Related to Acquisitions (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Beginning Balance			$ 32,897
Additions / Adjustments			(54)
Amortization
Ending Balance	32,843		32,843
Amortization	(658)	(669)	(1,978)	(1,738)
Beginning Balance			21,998
Additions / Adjustments
Amortization			(1,978)
Ending Balance	20,020		20,020
Beginning Balance			54,895
Additions / Adjustments			(54)
Amortization			(1,978)
Ending Balance	52,863		52,863
Trade name
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Beginning Balance			1,210
Additions / Adjustments
Amortization
Ending Balance	1,210		1,210
Amortization Period			Indefinite
Core deposit intangible
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Beginning Balance			1,654
Additions / Adjustments
Amortization			(237)
Ending Balance	1,417		1,417
Amortization Period			10 years
Customer relationships
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Beginning Balance			14,890
Additions / Adjustments
Amortization			(971)
Ending Balance	13,919		13,919
Non competition agreements
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Beginning Balance			4,244
Additions / Adjustments
Amortization			(770)
Ending Balance	3,474		3,474
Minimum | Customer relationships
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Amortization Period			10 years
Minimum | Non competition agreements
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Amortization Period			5 years
Maximum | Customer relationships
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Amortization Period			20 years
Maximum | Non competition agreements
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Amortization Period			5 years 6 months
Wealth Segment
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Beginning Balance			20,466
Additions / Adjustments			(54)
Amortization
Ending Balance	20,412		20,412
Amortization Period			Indefinite
Banking Segment
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Beginning Balance			12,431
Amortization
Ending Balance	$ 12,431		$ 12,431
Amortization Period			Indefinite

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Borrowings - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Maximum borrowing capacity with FHLB	$ 826,400,000
Unused capacity funds	589,900,000
Capital stock of FHLB	12,590,000	10,761,000
Overnight Fed Funds
Debt Instrument [Line Items]
Unused capacity funds	39,000,000
Federal Reserve Discount Window
Debt Instrument [Line Items]
Unused capacity funds	88,500,000
Revolving line of credit with correspondent bank
Debt Instrument [Line Items]
Unused capacity funds	$ 3,000,000

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Earnings Per Common Share

9 Months Ended

Sep. 30, 2013

Earnings Per Common Share

Note 3 - Earnings Per Common Share

Basic earnings per common share excludes dilution and is computed by dividing income available to common shareholders by the weighted-average common shares outstanding during the period. Diluted earnings per common share takes into account the potential dilution computed using the treasury stock method that could occur if stock options were exercised and converted into common stock, as well as the effect of restricted and performance shares becoming unrestricted common stock. The effects of stock options are excluded from the computation of diluted earnings per share in periods in which the effect would be anti-dilutive. All weighted-average shares, actual shares and per share information in the financial statements have been adjusted retroactively for the effect of stock dividends and stock splits.

	Three Months Ended September 30,				Nine Months Ended September 30,
(dollars in thousands except per share data)	2013		2012		2013		2012
Numerator:
Net income available to common shareholders	$	6,401	$	5,425	$	17,973	$	15,843
Denominator for basic earnings per share - weighted average shares outstanding		13,336,799		13,149,050		13,274,801		13,067,551
Effect of dilutive common shares		275,343		146,377		244,302		133,799
Denominator for diluted earnings per share - adjusted weighted average shares outstanding		13,612,142		13,295,427		13,519,103		13,201,350
Basic earnings per share	$	0.48	$	0.41	$	1.35	$	1.21
Diluted earnings per share	$	0.47	$	0.41	$	1.33	$	1.20
Antidilutive shares excluded from computation of average dilutive earnings per share		—		227,139		123,882		349,649

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating activities:
Net Income	$ 17,973	$ 15,843
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan and lease losses	2,763	3,003
Provision for depreciation and amortization	5,361	4,894
Net gain on sale of investment securities available for sale	(2)	(1,132)
Net gain on sale of residential mortgages	(3,588)	(4,311)
Stock based compensation cost	615	1,019
Amortization and net impairment of mortgage servicing rights	630	800
Net accretion of fair value adjustments	(2,560)	(979)
Amortization of intangible assets	1,978	1,738
Net loss on sale of OREO	194	86
Net increase in cash surrender value of bank owned life insurance	(270)	(331)
Other, net	798	(940)
Loans originated for resale	(113,800)	(132,642)
Proceeds from loans sold	118,633	134,105
Provision (benefit) for deferred income taxes	795	(433)
Change in income taxes payable/receivable	1,143	3,976
Change in accrued interest receivable	252	98
Change in accrued interest payable	(391)	(610)
Net cash provided by operating activities	30,524	24,184
Investing activities:
Purchases of investment securities available for sale	(91,977)	(180,744)
Proceeds from paydowns and maturities of investment securities available for sale	48,369	33,379
Proceeds from sale of investment securities available for sale	532	31,714
Net (purchase of) proceeds from redemptions of FHLB stock	(1,829)	871
Proceeds from calls of investment securities available for sale	31,287	67,692
Net change in other investments	9	(331)
Net portfolio loan and lease originations	(102,172)	(19,809)
Purchases of premises and equipment	(2,458)	(1,890)
Acquisitions, net of cash acquired		(7,845)
Capitalize OREO costs	(485)	(61)
Proceeds from sale of OREO	581	565
Net cash used by investing activities	(118,143)	(76,459)
Financing activities:
Change in deposits	(83,726)	16,440
Change in short-term borrowings	66,185	6,166
Dividends paid	(6,880)	(6,384)
Change in long-term FHLB advances and other borrowings	30,450	7,956
Repayment of subordinated debt		(7,500)
Payment of contingent consideration for business combinations	(1,050)
Tax benefit from exercise and vesting of stock awards	528	107
Net proceeds from sale of treasury stock from deferred compensation plans	329
Purchase of treasury stock	(453)
Proceeds from issuance of common stock	161	2,072
Proceeds from exercise of stock options	2,550	1,363
Net cash provided by financing activities	8,094	20,220
Change in cash and cash equivalents	(79,525)	(32,055)
Cash and cash equivalents at beginning of period	175,686	69,140
Cash and cash equivalents at end of period	96,161	37,085
Cash paid during the year for:
Income taxes	6,703	4,758
Interest	4,418	7,412
Available for sale securities purchased, not settled		5,577
Change in other comprehensive income	(731)	4,168
Change in deferred tax due to change in comprehensive income	(393)	1,458
Transfer of loans to other real estate owned	637	453
Acquisition of noncash assets and liabilities:
Assets acquired		12,078
Liabilities assumed		$ 6,161

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Mortgage Servicing Rights - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Percentage of sensitivity of the current fair value	10.00%

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Loans and Leases Outstanding (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	$ 1,284	$ 3,412
Real estate loans	1,141,105	1,056,339
Commercial and industrial	303,259	291,620
Consumer	17,572	17,666
Leases	38,079	32,831
Total	1,500,015	1,398,456
Total loans and leases	1,501,299	1,401,868
Loans with predetermined rates	814,781	723,417
Loans with adjustable or floating rates	686,518	678,451
Total loans and leases	1,501,299	1,401,868
Net deferred loan origination costs included in the above loan table	449	402
Commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loans	622,771	546,358
Total	622,771	546,358
Home equity lines and loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loans	187,634	194,861
Total	187,634	194,861
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loans	291,645	288,212
Total	291,645	288,212
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Real estate loans	39,055	26,908
Total	$ 39,055	$ 26,908

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Calculation of Basic and Diluted Earnings per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Line Items]
Net income available to common shareholders	$ 6,401	$ 5,425	$ 17,973	$ 15,843
Denominator for basic earnings per share - weighted average shares outstanding	13,336,799	13,149,050	13,274,801	13,067,551
Effect of dilutive common shares	275,343	146,377	244,302	133,799
Denominator for diluted earnings per share - adjusted weighted average shares outstanding	13,612,142	13,295,427	13,519,103	13,201,350
Basic earnings per share	$ 0.48	$ 0.41	$ 1.35	$ 1.21
Diluted earnings per share	$ 0.47	$ 0.41	$ 1.33	$ 1.20
Antidilutive shares excluded from computation of average dilutive earnings per share		227,139	123,882	349,649

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Schedule of Unvested Restricted Stock Awards (Detail) (Restricted Stock Awards, USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance, Number of Shares	46,815	56,631
Granted, Number of Shares	6,665	6,665
Vested, Number of Shares	(2,980)	(9,115)
Forfeited, Number of Shares		(3,681)
Balance, Number of Shares	50,500	50,500
Balance, Weighted Average Grant Date Fair Value	$ 18.89	$ 19.15
Granted, Weighted Average Grant Date Fair Value	$ 22.50	$ 22.50
Vested, Weighted Average Grant Date Fair Value	$ 16.78	$ 19.20
Forfeited, Weighted Average Grant Date Fair Value		$ 20.38
Balance, Weighted Average Grant Date Fair Value	$ 19.49	$ 19.49

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Deposits (Tables)

9 Months Ended

Sep. 30, 2013

Components of Deposits

The following table details the components of deposits:

(dollars in thousands)	September 30, 2013		December 31, 2012
Savings accounts	$	137,431	$	129,091
Interest-bearing checking accounts		244,826		270,279
Market-rate accounts		548,011		559,470
Wholesale non-maturity deposits		57,195		45,162
Wholesale time deposits		23,127		12,421
Time deposits		145,119		218,586
Total interest-bearing deposits		1,155,709		1,235,009
Non-interest-bearing deposits		394,947		399,673
Total deposits	$	1,550,656	$	1,634,682

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Fair Value Measurement - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Collateral securing loan | Minimum
Fair Value Measurements Disclosure [Line Items]
Discount on appraisals of collateral securing loan		10.00%
Collateral securing loan | Maximum
Fair Value Measurements Disclosure [Line Items]
Discount on appraisals of collateral securing loan		50.00%
Allowance for Loan and Lease Losses
Fair Value Measurements Disclosure [Line Items]
Net increase (decrease) in allowance	$ 256	$ (188)

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Schedule of Information about Options Outstanding and Exercisable (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares	660,101	688,476	784,226
Weighted average exercise price	$ 20.72	$ 20.69	$ 20.40
Aggregate intrinsic value	$ 4,127
Weighted average contractual term in years	3 years 3 months 18 days
Number of shares, Exercisable	629,955
Weighted average exercise price, Exercisable	$ 20.83
Aggregate intrinsic value, Exercisable	$ 3,865
Weighted average contractual term in years, Exercisable	3 years 1 month 6 days

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Summary of Activity Related to Mortgage Servicing Rights (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Servicing Asset at Amortized Cost [Line Items]
Balance, beginning of period	$ 4,790	$ 4,220	$ 4,491	$ 4,041
Additions	174	385	883	1,016
Amortization	(187)	(243)	(617)	(718)
Recovery			91	109
Impairment	(33)	(105)	(104)	(191)
Balance, end of period	4,744	4,257	4,744	4,257
Fair value	5,622	4,279	5,622	4,279	4,638
Loans serviced for others	$ 627,058	$ 583,859	$ 627,058	$ 583,859

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Types of Loan and Lease Modifications (Detail)	3 Months Ended	9 Months Ended
	Sep. 30, 2013 Contract	Sep. 30, 2013 Contract
Financing Receivable, Modifications [Line Items]
Interest-Rate Change	1	2
Loan Term Extension
Interest Rate Change and Term Extension		1
Interest-Only Period	1	3
Contractual Payment Reduction (Leases only)	2	4
Forgiveness of Interest		1
Residential mortgage
Financing Receivable, Modifications [Line Items]
Loan Term Extension
Interest Rate Change and Term Extension		1
Forgiveness of Interest		1
Home equity lines and loans
Financing Receivable, Modifications [Line Items]
Interest-Rate Change		1
Loan Term Extension
Interest-Only Period		1
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Loan Term Extension
Interest-Only Period	1	2
Leases
Financing Receivable, Modifications [Line Items]
Loan Term Extension
Contractual Payment Reduction (Leases only)	2	4
Consumer
Financing Receivable, Modifications [Line Items]
Interest-Rate Change	1	1
Loan Term Extension

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Aging of Corporation's Loan and Lease Portfolio (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	$ 914		$ 1,627
60 - 89 Days Past Due	314		425
Over 89 Days Past Due			728
Total Past Due	1,228		2,780
Current	1,488,174		1,381,636
Total Accruing Loans and Leases	1,489,402		1,384,416
Nonaccrual Loans and Leases	10,613	[1]	14,040	[1]
Total	1,500,015		1,398,456
Commercial mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due			704
60 - 89 Days Past Due	147		130
Total Past Due	147		834
Current	622,113		544,893
Total Accruing Loans and Leases	622,260		545,727
Nonaccrual Loans and Leases	511	[1]	631	[1]
Total	622,771		546,358
Home equity lines and loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due			107
60 - 89 Days Past Due			84
Total Past Due			191
Current	186,090		191,878
Total Accruing Loans and Leases	186,090		192,069
Nonaccrual Loans and Leases	1,544	[1]	2,792	[1]
Total	187,634		194,861
Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	849		399
60 - 89 Days Past Due	105		141
Total Past Due	954		540
Current	286,853		283,924
Total Accruing Loans and Leases	287,807		284,464
Nonaccrual Loans and Leases	3,838	[1]	3,748	[1]
Total	291,645		288,212
Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Over 89 Days Past Due			728
Total Past Due			728
Current	37,394		22,866
Total Accruing Loans and Leases	37,394		23,594
Nonaccrual Loans and Leases	1,661	[1]	3,314	[1]
Total	39,055		26,908
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	34		376
60 - 89 Days Past Due			50
Total Past Due	34		426
Current	300,231		287,688
Total Accruing Loans and Leases	300,265		288,114
Nonaccrual Loans and Leases	2,994	[1]	3,506	[1]
Total	303,259		291,620
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	4		8
60 - 89 Days Past Due			7
Total Past Due	4		15
Current	17,519		17,644
Total Accruing Loans and Leases	17,523		17,659
Nonaccrual Loans and Leases	49	[1]	7	[1]
Total	17,572		17,666
Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	27		33
60 - 89 Days Past Due	62		13
Total Past Due	89		46
Current	37,974		32,743
Total Accruing Loans and Leases	38,063		32,789
Nonaccrual Loans and Leases	16	[1]	42	[1]
Total	$ 38,079		$ 32,831

[1] Purchased credit-impaired loans, which have been recorded at their fair values at acquisition, and which are performing, are excluded from this table, with the exception of $90 thousand of purchased credit-impaired loans as of both September 30, 2013 and December 31, 2012, which became non-performing subsequent to acquisition.

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Schedule of Unvested Performance Stock Awards (Detail) (Performance Stock Awards, USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Performance Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance, Number of Shares	184,191	185,766
Granted, Number of Shares	75,714	75,714
Vested, Number of Shares	(54,925)	(54,925)
Forfeited, Number of Shares		(1,575)
Balance, Number of Shares	204,980	204,980
Balance, Weighted Average Grant Date Fair Value	$ 10.62	$ 10.62
Granted, Weighted Average Grant Date Fair Value	$ 13.36	$ 13.36
Vested, Weighted Average Grant Date Fair Value	$ 9.64	$ 9.64
Forfeited, Weighted Average Grant Date Fair Value		$ 10.77
Balance, Weighted Average Grant Date Fair Value	$ 11.90	$ 11.90

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Pension and Other Post-Retirement Benefit Plans

9 Months Ended

Sep. 30, 2013

Pension and Other Post-Retirement Benefit Plans

Note 10 - Pension and Other Post-Retirement Benefit Plans

The Corporation has three defined benefit pension plans: the qualified defined-benefit plan (the “QDBP”) which covers all employees over age 20 1/2 who meet certain service requirements, and two non-qualified defined-benefit pension plans (“SERP I” and “SERP II”) which are restricted to certain senior officers of the Corporation.

SERP I provides each participant with the equivalent pension benefit provided by the QDBP on any compensation and bonus deferrals that exceed the IRS limit applicable to the QDBP.

On February 12, 2008, the Corporation amended the QDBP and SERP I to freeze further increases in the defined-benefit amounts to all participants, effective March 31, 2008.

On April 1, 2008, the Corporation added SERP II, a non-qualified defined-benefit plan which was restricted to certain senior officers of the Corporation. Effective January 1, 2013, the Corporation has curtailed SERP II, as further increases to the defined-benefit amounts to over 20% of the participants have been frozen. As a result of the curtailment, the Corporation recorded a $690 thousand gain which represents the reversal of previous amounts that had been expensed in anticipation of future service of the curtailed participants. The benefit obligation related to the SERP I and SERP II plans as of March 31, 2013 decreased by $2.3 million from the balance at December 31, 2012 as a result of the curtailment.

On June 28, 2013, the Corporation adopted the Bryn Mawr Bank Corporation Executive Deferred Compensation Plan (“SERP III”), a non-qualified defined-contribution plan which was restricted to certain senior officers of the Corporation. SERP III was retroactively effective January 1, 2013. The intended purpose of SERP III is to provide deferred compensation to a select group of employees.

The Corporation also has a postretirement benefit plan (“PRBP”) that covers certain retired employees and a group of current employees. The PRBP was closed to new participants in 1994. In 2007, the Corporation amended the PRBP to allow for settlement of obligations to certain current and retired employees. Certain retired participant obligations were settled in 2007 and current employee obligations were settled in 2008.

The following tables provide details of the components of the net periodic benefits cost (benefit) for the three and nine months ended September 30, 2013 and 2012:

	Three Months Ended September 30,
	SERP I and SERP II				QDBP						PRBP
(dollars in thousands)	2013		2012		2013			2012			2013		2012
Service cost	$	18	$	67	$	—		$	—		$	—	$	—
Interest cost		40		61		371			394			8		9
Expected return on plan assets		—		—		(745	)		(701	)		—		—
Amortization of transition obligation		—		—		—			—			—		7
Amortization of prior service costs		3		21		—			—			—		—
Amortization of net loss		13		22		431			447			19		19
Gain on curtailment		—		—		—			—			—		—
Net periodic benefit cost	$	74	$	171	$	57		$	140		$	27	$	35

	Nine Months Ended September 30,
	SERP I and SERP II					QDBP						PRBP
(dollars in thousands)	2013			2012		2013			2012			2013		2012
Service cost	$	54		$	201	$	—		$	—		$	—	$	—
Interest cost		119			183		1,114			1,183			22		27
Expected return on plan assets		—			—		(2,236	)		(2,103	)		—		—
Amortization of transition obligation		—			—		—			—			—		20
Amortization of prior service costs		10			62		—			—			—		—
Amortization of net loss		39			68		1,293			1,340			58		58
Gain on curtailment		(690	)		—		—			—			—		—
Net periodic benefit cost	$	(468	)	$	514	$	171		$	420		$	80	$	105

QDBP: No contributions to the QDBP were made for the three and nine months ended September 30, 2013.

SERP I and SERP II: The Corporation accrued $36 thousand and $109 thousand during the three and nine months ended September 30, 2013, respectively, and is expected to accrue an additional $36 thousand to the SERP I and SERP II plans for the remaining three months of 2013.

SERP III: The Corporation accrued $22 thousand and $66 thousand during the three and nine months ended September 30, 2013, respectively, to SERP III and is expected to accrue an additional $ 22 thousand for the remaining three months of 2013.

PRBP: In 2005, the Corporation capped the maximum annual payment under the PRBP at 120% of the 2005 benefit. This maximum was reached in 2008 and the cap is not expected to be increased above this level.

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Deposits

9 Months Ended

Sep. 30, 2013

Deposits

Note 6 - Deposits

The following table details the components of deposits:

(dollars in thousands)	September 30, 2013		December 31, 2012
Savings accounts	$	137,431	$	129,091
Interest-bearing checking accounts		244,826		270,279
Market-rate accounts		548,011		559,470
Wholesale non-maturity deposits		57,195		45,162
Wholesale time deposits		23,127		12,421
Time deposits		145,119		218,586
Total interest-bearing deposits		1,155,709		1,235,009
Non-interest-bearing deposits		394,947		399,673
Total deposits	$	1,550,656	$	1,634,682

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Recorded Investment and Principal Balance of Impaired Loans by Portfolio Segment Their Related Allowance for Loan and Lease Losses and Interest Income Recognized (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2012
Financing Receivable, Impaired [Line Items]
Recorded investment of impaired lease with related allowance	$ 19,408	[1]	$ 21,790	[2]	$ 21,637	[1]
Impaired loans with related allowance
Financing Receivable, Impaired [Line Items]
Recorded investment of impaired lease with related allowance	7,660	[1]	11,967	[2]	9,413	[1]
Impaired loans without related allowance
Financing Receivable, Impaired [Line Items]
Recorded investment of impaired lease with related allowance	11,748	[1],[3],[4]	9,823	[2],[5]	12,224	[1],[3],[6]
Leases | Impaired loans with related allowance
Financing Receivable, Impaired [Line Items]
Recorded investment of impaired lease with related allowance					223
Leases | Impaired loans without related allowance
Financing Receivable, Impaired [Line Items]
Recorded investment of impaired lease with related allowance	$ 62		$ 168

[1] Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal.

[2] Recorded investment equals principal balance less partial charge-offs and interest payments on non-performing loans that have been applied to principal

[3] This table excludes all purchased credit-impaired loans, which are discussed in Note 5D, above.

[4] The table above does not include the recorded investment of $62 thousand of impaired leases without a related Allowance.

[5] The table above does not include the recorded investment of $168 thousand of impaired leases without a related Allowance.

[6] The table above does not include the recorded investment of $223 thousand of impaired leases without a related allowance for loan and lease losses.

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Goodwill and Other Intangibles

9 Months Ended

Sep. 30, 2013

Goodwill and Other Intangibles

Note 13 - Goodwill and Other Intangibles

The Corporation’s goodwill and intangible assets related to the acquisitions of Lau Associates LLC (“Lau”) in July, 2008, First Keystone Financial, Inc. (“FKF”) in July, 2010, the Private Wealth Management Group of the Hershey Trust Company (“PWMG”) in May, 2011, DTC in May, 2012 and the FBD Transaction in November, 2012 are detailed below:

(dollars in thousands)	Balance December 31, 2012		Additions/ Adjustments			Amortization			Balance September  30, 2013		Amortization Period
Goodwill - Wealth segment	$	20,466	$	(54	)	$	—		$	20,412	Indefinite
Goodwill - Banking segment		12,431		—			—			12,431	Indefinite
Total	$	32,897	$	(54	)	$	—		$	32,843
Core deposit intangible	$	1,654	$	—		$	(237	)	$	1,417	10 Years
Customer relationships		14,890		—			(971	)		13,919	10 to 20 Years
Non compete agreements		4,244		—			(770	)		3,474	5 to 5 1/2 Years
Trade name		1,210		—			—			1,210	Indefinite
Total	$	21,998	$	—		$	(1,978	)	$	20,020
Grand total	$	54,895	$	(54	)	$	(1,978	)	$	52,863

The Corporation performed its annual review of goodwill and identifiable intangible assets as of December 31, 2012 in accordance with ASC 350, “Intangibles Goodwill and Other.” For the three months ended September 30, 2013, the Corporation determined there were no events that would necessitate impairment testing of goodwill and other intangible assets.

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Segment Information

9 Months Ended

Sep. 30, 2013

Segment Information

Note 11 - Segment Information

The Corporation aggregates certain of its operations and has identified two segments as follows: Banking and Wealth Management.

The following tables detail segment information for the three and nine months ended September 30, 2013 and 2012:

	Three Months Ended September 30, 2013									Three Months Ended September 30, 2012
(dollars in thousands)	Banking			Wealth Management			Consolidated			Banking			Wealth Management			Consolidated
Net interest income	$	18,532		$	1		$	18,533		$	15,950		$	1		$	15,951
Less: loan loss provision		959			—			959			1,000			—			1,000
Net interest income after loan loss provision		17,573			1			17,574			14,950			1			14,951
Other income:
Fees for wealth management services		—			8,635			8,635			—			7,993			7,993
Service charges on deposit accounts		627			—			627			634			—			634
Loan servicing and other fees		481			—			481			432			—			432
Net gain on sale of loans		578			—			578			1,837			—			1,837
Net gain on sale of available for sale securities		—			—			—			416			—			416
Net loss on sale of other real estate owned		(1	)		—			(1	)		(45	)		—			(45	)
BOLI income		72			—			72			107			—			107
Other operating income		947			48			995			833			41			874
Total other income		2,704			8,683			11,387			4,214			8,034			12,248
Other expenses:
Salaries & wages		5,986			3,026			9,012			5,799			2,904			8,703
Employee benefits		1,196			700			1,896			1,243			660			1,903
Occupancy & equipment		1,267			379			1,646			1,124			364			1,488
Amortization of intangible assets		78			580			658			71			598			669
Professional fees		609			27			636			537			72			609
Other operating expenses		4,812			663			5,475			4,594			923			5,517
Total other expenses		13,948			5,375			19,323			13,368			5,521			18,889
Segment profit		6,329			3,309			9,638			5,796			2,514			8,310
Intersegment (revenues) expenses*		(19	)		19			—			(128	)		128			—
Pre-tax segment profit after eliminations	$	6,310		$	3,328		$	9,638		$	5,668		$	2,642		$	8,310
% of segment pre-tax profit after eliminations		65.5	%		34.5	%		100.0	%		68.2	%		31.8	%		100.0	%
Segment assets (dollars in millions)	$	2,017		$	42		$	2,059		$	1,769		$	46		$	1,815

* Inter-segment revenues consist of rental payments, interest on deposits and management fees.

	Nine Months Ended September 30, 2013									Nine Months Ended September 30, 2012
(dollars in thousands)	Banking			Wealth Management			Consolidated			Banking			Wealth Management			Consolidated
Net interest income	$	53,863		$	2		$	53,865		$	47,836		$	3		$	47,839
Less: loan loss provision		2,763			—			2,763			3,003			—			3,003
Net interest income after loan loss provision		51,100			2			51,102			44,833			3			44,836
Other income:
Fees for wealth management services		—			26,078			26,078			—			21,433			21,433
Service charges on deposit accounts		1,807			—			1,807			1,823			—			1,823
Loan servicing and other fees		1,380			—			1,380			1,303			—			1,303
Net gain on sale of loans		3,588			—			3,588			4,311			—			4,311
Net gain on sale of available for sale securities		2			—			2			1,132			—			1,132
Net loss on sale of other real estate owned		(194	)		—			(194	)		(86	)		—			(86	)
BOLI income		270			—			270			330			—			330
Other operating income		3,051			138			3,189			2,903			67			2,970
Total other income		9,904			26,216			36,120			11,716			21,500			33,216
Other expenses:
Salaries & wages		17,898			9,010			26,908			16,294			7,989			24,283
Employee benefits		4,235			2,198			6,433			4,239			1,847			6,086
Occupancy & equipment		3,994			1,130			5,124			3,001			1,257			4,258
Amortization of intangible assets		237			1,741			1,978			218			1,520			1,738
Professional fees		1,732			143			1,875			1,672			165			1,837
Other operating expenses		15,082			2,682			17,764			13,602			2,008			15,610
Total other expenses		43,178			16,904			60,082			39,026			14,786			53,812
Segment profit		17,826			9,314			27,140			17,523			6,717			24,240
Intersegment (revenues) expenses*		(323	)		323			—			(368	)		368			—
Pre-tax segment profit after eliminations	$	17,503		$	9,637		$	27,140		$	17,155		$	7,085		$	24,240
% of segment pre-tax profit after eliminations		64.5	%		35.5	%		100.0	%		70.8	%		29.2	%		100.0	%
Segment assets (dollars in millions)	$	2,017		$	42		$	2,059		$	1,769		$	46		$	1,815

Other segment information:

Wealth Management Segment Information

	(dollars in millions)
	September 30, 2013		December 31, 2012
Assets under management, administration, supervision and brokerage	$	7,082.9	$	6,663.2

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Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 04, 2013
Document Information [Line Items]
Document Type	10-Q/A
Amendment Flag	true
AmendmentDescription	This Amendment No. 1 on Form 10-Q/A (the “Amendment”) of Bryn Mawr Bank Corporation (the “Corporation”) amends the Corporation’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2013, originally filed with the Securities and Exchange Commission on November 8, 2013 (the “Original Report”). This Amendment is being filed solely to correct a typographical error on the cover page of the Original Report with respect to the number of shares outstanding of the Corporation’s common stock as of the November 4, 2013. The correct number of shares of the Corporation’s common stock outstanding as of November 4, 2013 was 13,586,437. This Amendment No. 1 speaks as of the original filing date of the Form 10-Q, does not reflect events that may have occurred subsequent to the original filing date, and does not modify or update in any way disclosures made in the Original Report. No other changes have been made to the Original Report. This Amendment has been signed as of a current date, and includes new certifications by the registrant’s principal executive officer and principal financial officer, which are being filed as exhibits to this Amendment. Because this Amendment includes no financial statements, we are not including certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
Document Period End Date	Sep. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Trading Symbol	BMTC
Entity Registrant Name	Bryn Mawr Bank Corp.
Entity Central Index Key	0000802681
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		13,586,437

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Pension and Other Post-Retirement Benefit Plans - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2013
Defined Contribution and Defined Benefit Plans [Line Items]
Net gain on curtailment of nonqualified pension plan			$ 690,000
SERP III
Defined Contribution and Defined Benefit Plans [Line Items]
Non-qualified defined-contribution plan accrued	22,000		66,000
Expected accrual to non-qualified defined-contribution plan			22,000
SERP II
Defined Contribution and Defined Benefit Plans [Line Items]
Maximum defined benefit plan curtailment	20.00%		20.00%
Net gain on curtailment of nonqualified pension plan			690,000
Benefit obligation		(2,300,000)
Defined benefit plan accrued	36,000		109,000
Expected accrual to SERP			$ 36,000
PRBP
Defined Contribution and Defined Benefit Plans [Line Items]
Percentage of maximum annual payment under Post Retirement Benefit Plan			120.00%

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Mortgage Servicing Rights

9 Months Ended

Sep. 30, 2013

Mortgage Servicing Rights

Note 12 - Mortgage Servicing Rights

The following tables summarize the Corporation’s activity related to mortgage servicing rights (“MSRs”) for the three and nine months ended September 30, 2013 and 2012:

	Three Months Ended September 30,
(dollars in thousands)	2013			2012
Balance, beginning of period	$	4,790		$	4,220
Additions		174			385
Amortization		(187	)		(243	)
Recovery		—			—
Impairment		(33	)		(105	)
Balance, end of period	$	4,744		$	4,257
Fair value	$	5,622		$	4,279
Loans serviced for others	$	627,058		$	583,859

	Nine Months Ended September 30,
(dollars in thousands)	2013			2012
Balance, beginning of period	$	4,491		$	4,041
Additions		883			1,016
Amortization		(617	)		(718	)
Recovery		91			109
Impairment		(104	)		(191	)
Balance, end of period	$	4,744		$	4,257
Fair value	$	5,622		$	4,279
Loans serviced for others	$	627,058		$	583,859

As of September 30, 2013 and December 31, 2012, key economic assumptions and the sensitivity of the current fair value of MSRs to immediate 10 and 20 percent adverse changes in those assumptions are as follows:

(dollars in thousands)	September 30, 2013			December 31, 2012
Fair value amount of MSRs	$	5,622		$	4,638
Weighted average life (in years)		6.1			4.8
Prepayment speeds (constant prepayment rate)*		11.9			15.9
Impact on fair value:
10% adverse change	$	(220	)	$	(230	)
20% adverse change	$	(426	)	$	(442	)
Discount rate		10.50	%		10.50	%
Impact on fair value:
10% adverse change	$	(220	)	$	(158	)
20% adverse change	$	(424	)	$	(306	)

* Represents the weighted average prepayment rate for the life of the MSR asset.

These assumptions and sensitivities are hypothetical and should be used with caution. Changes in fair value based on a 10% variation in assumptions generally cannot be extrapolated because the relationship of the change in assumptions to the change in fair value may not be linear. Also, the effect of a variation in a particular assumption on the fair value of the MSRs is calculated without changing any other assumption. In reality, changes in one factor may result in changes in another, which could magnify or counteract the sensitivities.

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Allocation of Allowance for Loan and Lease Losses by Portfolio Segment Based on Methodology Used to Evaluate Loans and Leases for Impairment (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Jun. 30, 2013	Dec. 31, 2012		Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	$ 15,027		$ 14,444	$ 14,425		$ 13,638	$ 13,140	$ 12,753
Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	4,482		4,481	3,907		3,623	3,384	3,165
Home equity lines and loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	2,186		2,109	1,857		1,678	1,749	1,707
Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	2,098		1,773	2,024		1,621	1,636	1,592
Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	668		653	1,019		1,024	1,112	1,384
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	4,430		4,295	4,637		4,580	3,789	3,816
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	258		218	189		200	180	119
Leases
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	571		551	493		467	535	532
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	334		364	299		445	755	438
Allowance for Loan and Lease Losses
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	1,347			2,354
Collectively evaluated for impairment	13,672			12,033
Purchased credit-impaired	8	[1]		38	[1]
Total	15,027			14,425
Allowance for Loan and Lease Losses | Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	4,474			3,894
Purchased credit-impaired	8	[1]		13	[1]
Total	4,482			3,907
Allowance for Loan and Lease Losses | Home equity lines and loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	119			217
Collectively evaluated for impairment	2,067			1,640
Total	2,186			1,857
Allowance for Loan and Lease Losses | Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	628			667
Collectively evaluated for impairment	1,470			1,357
Total	2,098			2,024
Allowance for Loan and Lease Losses | Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment				543
Collectively evaluated for impairment	668			451
Purchased credit-impaired				25	[1]
Total	668			1,019
Allowance for Loan and Lease Losses | Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	544			919
Collectively evaluated for impairment	3,886			3,718
Total	4,430			4,637
Allowance for Loan and Lease Losses | Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	56			8
Collectively evaluated for impairment	202			181
Total	258			189
Allowance for Loan and Lease Losses | Leases
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	571			493
Total	571			493
Allowance for Loan and Lease Losses | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	334			299
Total	$ 334			$ 299

[1] Purchased credit-impaired loans are evaluated for impairment on an individual basis.

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Roll forward of Corporation's Allowance for Loan and Leases Losses by Loan Category (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$ 14,444	$ 13,140	$ 14,425	$ 12,753
Charge-offs	(501)	(618)	(2,495)	(2,417)
Recoveries	125	116	334	299
Provision for loan and lease losses	959	1,000	2,763	3,003
Balance, end of period	15,027	13,638	15,027	13,638
Commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	4,481	3,384	3,907	3,165
Charge-offs	(19)		(19)	(235)
Recoveries		4		4
Provision for loan and lease losses	20	235	594	689
Balance, end of period	4,482	3,623	4,482	3,623
Home equity lines and loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	2,109	1,749	1,857	1,707
Charge-offs	(105)	(315)	(457)	(328)
Recoveries	29		29
Provision for loan and lease losses	153	244	757	299
Balance, end of period	2,186	1,678	2,186	1,678
Residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	1,773	1,636	2,024	1,592
Charge-offs	(203)	(18)	(203)	(188)
Recoveries	5		13
Provision for loan and lease losses	523	3	264	217
Balance, end of period	2,098	1,621	2,098	1,621
Construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	653	1,112	1,019	1,384
Charge-offs		(197)	(720)	(896)
Recoveries	6		24
Provision for loan and lease losses	9	109	345	536
Balance, end of period	668	1,024	668	1,024
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	4,295	3,789	4,637	3,816
Charge-offs	(19)		(737)	(409)
Recoveries	20	25	64	91
Provision for loan and lease losses	134	766	466	1,082
Balance, end of period	4,430	4,580	4,430	4,580
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	218	180	189	119
Charge-offs	(31)	(19)	(101)	(61)
Recoveries	3	1	7	5
Provision for loan and lease losses	68	38	163	137
Balance, end of period	258	200	258	200
Leases
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	551	535	493	532
Charge-offs	(124)	(69)	(258)	(300)
Recoveries	62	86	197	199
Provision for loan and lease losses	82	(85)	139	36
Balance, end of period	571	467	571	467
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	364	755	299	438
Provision for loan and lease losses	(30)	(310)	35	7
Balance, end of period	$ 334	$ 445	$ 334	$ 445

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Components of Net Periodic Benefits Cost (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Net gain on curtailment of nonqualified pension plan			$ (690)
SERP II
Defined Benefit Plan Disclosure [Line Items]
Service cost	18	67	54	201
Interest cost	40	61	119	183
Amortization of prior service costs	3	21	10	62
Amortization of net loss	13	22	39	68
Net gain on curtailment of nonqualified pension plan			(690)
Net periodic benefit cost	74	171	(468)	514
QDBP
Defined Benefit Plan Disclosure [Line Items]
Interest cost	371	394	1,114	1,183
Expected return on plan assets	(745)	(701)	(2,236)	(2,103)
Amortization of net loss	431	447	1,293	1,340
Net periodic benefit cost	57	140	171	420
PRBP
Defined Benefit Plan Disclosure [Line Items]
Interest cost	8	9	22	27
Amortization of transition obligation		7		20
Amortization of net loss	19	19	58	58
Net periodic benefit cost	$ 27	$ 35	$ 80	$ 105