Lakeland Bancorp (LBAI) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	LBAI
Entity Registrant Name	LAKELAND BANCORP INC
Entity Central Index Key	846901
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		37,900,107

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
ASSETS:
Cash	$112,929	$102,549
Interest-bearing deposits due from banks	20,276	6,767
Total cash and cash equivalents	133,205	109,316
Investment securities available for sale, at fair value	473,452	457,449
Investment securities held to maturity; fair value of $117,717 at March 31, 2015 and $109,030 at December 31, 2014	115,779	107,976
Federal Home Loan Bank and other membership bank stock, at cost	10,755	9,846
Loans held for sale	1,598	592
Loans, net of deferred costs (fees)	2,689,796	2,653,826
Less: allowance for loan and lease losses	30,505	30,684
Net loans	2,659,291	2,623,142
Premises and equipment, net	35,626	35,675
Accrued interest receivable	8,860	8,896
Goodwill	109,974	109,974
Other identifiable intangible assets	1,849	1,960
Bank owned life insurance	61,481	57,476
Other assets	15,894	16,023
TOTAL ASSETS	3,627,764	3,538,325
Deposits:
Noninterest bearing	672,264	646,052
Savings and interest-bearing transaction accounts	1,878,598	1,864,805
Time deposits under $100 thousand	164,946	165,625
Time deposits $100 thousand and over	126,757	114,337
Total deposits	2,842,565	2,790,819
Federal funds purchased and securities sold under agreements to repurchase	117,351	108,935
Other borrowings	222,728	202,498
Subordinated debentures	41,238	41,238
Other liabilities	15,798	15,397
TOTAL LIABILITIES	3,239,680	3,158,887
STOCKHOLDERS' EQUITY
Common stock, no par value; authorized shares, 70,000,000; issued 37,900,107 shares at March 31, 2015 and 37,910,840 shares at December 31, 2014	385,219	384,731
Accumulated deficit	-1,338	-6,816
Accumulated other comprehensive income	4,203	1,523
TOTAL STOCKHOLDERS' EQUITY	388,084	379,438
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$3,627,764	$3,538,325

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]
Investment securities held to maturity; fair value	$117,717	$109,030
Common stock, par value	$0	$0
Common stock, shares authorized	70,000,000	70,000,000
Common stock, shares issued	37,900,107	37,910,840

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
INTEREST INCOME
Loans, leases and fees	$27,896	$26,898
Federal funds sold and interest-bearing deposits with banks	12	13
Taxable investment securities and other	2,674	2,546
Tax-exempt investment securities	410	473
TOTAL INTEREST INCOME	30,992	29,930
INTEREST EXPENSE
Deposits	1,283	1,263
Federal funds purchased and securities sold under agreements to repurchase	22	15
Other borrowings	1,169	807
TOTAL INTEREST EXPENSE	2,474	2,085
NET INTEREST INCOME	28,518	27,845
Provision for loan and lease losses	870	1,489
NET INTEREST INCOME AFTER PROVISION FOR LOAN AND LEASE LOSSES	27,648	26,356
NONINTEREST INCOME
Service charges on deposit accounts	2,340	2,559
Commissions and fees	1,307	1,013
Gains on sales and calls of investment securities		2
Income on bank owned life insurance	699	360
Other income	392	139
TOTAL NONINTEREST INCOME	4,738	4,073
NONINTEREST EXPENSE
Salaries and employee benefits	11,750	10,813
Net occupancy expense	2,548	2,617
Furniture and equipment	1,656	1,693
Stationery, supplies and postage	365	354
Marketing expense	240	386
FDIC insurance expense	518	501
Legal expense	116	273
Expenses on other real estate owned and other repossessed assets	-8	15
Core deposit intangible amortization	111	123
Other expenses	2,746	2,967
TOTAL NONINTEREST EXPENSE	20,042	19,742
Income before provision for income taxes	12,344	10,687
Income tax expense	4,014	3,524
NET INCOME	$8,330	$7,163
PER SHARE OF COMMON STOCK
Basic earnings	$0.22	$0.19
Diluted earnings	$0.22	$0.19
Dividends	$0.08	$0.07

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
NET INCOME	$8,330	$7,163
OTHER COMPREHENSIVE INCOME, NET OF TAX:
Unrealized securities gains during period	2,675	2,988
Reclassification for gains included in net income		-2
Change in pension liability, net	5	5
Other Comprehensive Income	2,680	2,991
TOTAL COMPREHENSIVE INCOME	$11,010	$10,154

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Stock [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]
In Thousands
BALANCE at Dec. 31, 2014	$379,438	$384,731	($6,816)	$1,523
NET INCOME	8,330		8,330
Other comprehensive income, net of tax	2,680			2,680
Stock based compensation	567	567
Retirement of restricted stock	-230	-230
Exercise of stock options, net of excess tax benefits	151	151
Cash dividends, common stock	-2,852		-2,852
BALANCE at Mar. 31, 2015	$388,084	$385,219	($1,338)	$4,203

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
NET INCOME	$8,330	$7,163
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization of premiums, discounts and deferred loan fees and costs	874	758
Depreciation and amortization	849	970
Amortization of intangible assets	111	123
Provision for loan and lease losses	870	1,489
Loans originated for sale	-11,976	-3,775
Proceeds from sales of loans	11,235	5,064
Gains on calls of securities		-2
Gains on proceeds of bank owned life insurance	-332
Gains on sales of loans held for sale	-265	-83
Gains on other real estate and other repossessed assets	-94	-39
Losses on sales of premises and equipment	3
Stock-based compensation	567	248
Increase in other assets	-1,954	-383
Increase (decrease) in other liabilities	410	-667
NET CASH PROVIDED BY OPERATING ACTIVITIES	8,628	10,866
Proceeds from repayments on and maturity of securities:
Available for sale	19,309	11,421
Held to maturity	4,162	7,660
Purchase of securities:
Available for sale	-31,706	-5,959
Held to maturity	-12,100	-1,488
Purchase of bank owned life insurance	-4,078
Proceeds from bank owned life insurance policy	772
Net (increase) decrease in Federal Home Loan Bank Stock	-910	1
Net increase in loans and leases	-37,298	-36,417
Proceeds from sales of other real estate and repossessed assets	559	127
Capital expenditures	-947	-577
NET CASH USED IN INVESTING ACTIVITIES	-62,237	-25,232
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	51,783	27,576
Increase in federal funds purchased and securities sold under agreements to repurchase	8,416	33,961
Proceeds from other borrowings	20,230	20,000
Repayments of other borrowings		-20,000
Excess tax benefits	58	65
Exercise of stock options	93	79
Retirement of restricted stock	-230	-56
Issuance of stock to dividend reinvestment and stock purchase plan		26
Dividends paid	-2,852	-2,401
NET CASH PROVIDED BY FINANCING ACTIVITIES	77,498	59,250
Net increase in cash and cash equivalents	23,889	44,884
Cash and cash equivalents, beginning of period	109,316	102,721
CASH AND CASH EQUIVALENTS, END OF PERIOD	$133,205	$147,605

Significant_Accounting_Policie

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Significant Accounting Policies	Note 1. Significant Accounting Policies
	Basis of Presentation.
	This quarterly report presents the consolidated financial statements of Lakeland Bancorp, Inc. (the Company) and its subsidiary, Lakeland Bank (Lakeland). The accounting and reporting policies of the Company conform with accounting principles generally accepted in the United States of America (U.S. GAAP) and predominant practices within the banking industry.
	The Company’s unaudited interim financial statements reflect all adjustments, such as normal recurring accruals that are, in the opinion of management, necessary for the fair presentation of the results of the interim periods. The results of operations for the quarter ended March 31, 2015 do not necessarily indicate the results that the Company will achieve for all of 2015. You should read these interim financial statements in conjunction with the audited consolidated financial statements and accompanying notes that are presented in the Lakeland Bancorp, Inc. Annual Report on Form 10-K for the year ended December 31, 2014.
	On May 21, 2014, the Company’s Board of Directors authorized a 5% stock dividend which was distributed on June 17, 2014 to holders of record as of June 3, 2014. All weighted average, actual share and per share information set forth in this Quarterly Report on Form 10-Q have been adjusted retroactively for the effects of the stock dividend.
	The financial information in this quarterly report has been prepared in accordance with the Company’s customary accounting practices. Certain information and footnote disclosures required under U.S. GAAP have been condensed or omitted, as permitted by rules and regulations of the Securities and Exchange Commission.
	Certain reclassifications have been made to prior period financial statements to conform to the 2015 presentation.

ShareBased_Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Note 2. Share-Based Compensation
	The Company grants stock options, restricted stock and restricted stock units (RSUs) under the 2009 Equity Compensation Program. Share-based compensation expense of $567,000 and $248,000 was recognized for the three months ended March 31, 2015 and 2014, respectively. As of March 31, 2015, there was unrecognized compensation cost of $569,000 related to unvested restricted stock; that cost is expected to be recognized over a weighted average period of approximately 2.3 years. Unrecognized compensation expense related to unvested stock options was approximately $75,000 as of March 31, 2015 and is expected to be recognized over a period of 2.2 years. Unrecognized compensation expense related to RSUs was approximately $1.6 million as of March 31, 2015, and that cost is expected to be recognized over a period of 2.0 years.
	In the first three months of 2014, the Company granted 1,942 shares of restricted stock at a grant date fair value of $11.21 per share under the 2009 Equity Compensation Program. Compensation expense on these shares is expected to average approximately $4,000 per year over a five year period.
	In the first three months of 2015, the Company granted 120,509 RSUs at a weighted average grant date fair value of $11.01 per share under the Company’s 2009 Equity Compensation Program. These units vest within a range of two to three years. A portion of these RSUs will vest subject to certain performance conditions in the restricted stock unit agreement. There are also certain provisions in the compensation program which state that if a holder of the RSUs reaches a certain age and years of service, the person has effectively earned a portion of the RSUs at that time. Compensation expense on these restricted stock units is expected to average approximately $442,000 per year over a three year period. In the first three months of 2014, the Company granted 125,697 RSUs at a weighted average grant date fair value of $10.66 per share under the Company’s 2009 Equity Compensation Program. Compensation expense on these RSUs is expected to average approximately $447,000 over a three year period.
	There were no grants of stock options in the first three months of 2015 or 2014.
	Option activity under the Company’s stock option plans is as follows:
		Number of			Weighted		Weighted		Aggregate
		shares			average		average		intrinsic value
					exercise		remaining
					price		contractual
							term
							(in years)
	Outstanding, January 1, 2015		311,705		$	9.69			$	681,861
	Issued		—			—
	Exercised		(12,540	)		7.39
	Forfeited		(2,810	)		12.29
	Expired		—			—
	Outstanding, March 31, 2015		296,355		$	9.76		4.01	$	585,356
	Options exercisable at
	March 31, 2015		264,855		$	9.79		3.52	$	519,867
	The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the Company’s closing stock price on the last trading day of the first three months of 2015 and the exercise price, multiplied by the number of in-the-money options).
	The aggregate intrinsic value of stock options exercised during the three months ended March 31, 2015 and 2014 was $50,000 and $38,000, respectively. Exercise of stock options during the first three months of 2015 and 2014 resulted in cash receipts of $93,000 and $79,000, respectively.
	Information regarding the Company’s restricted stock (all unvested) and changes during the three months ended March 31, 2015 is as follows:
		Number of			Weighted
		shares			average
					price
	Outstanding, January 1, 2015		160,284		$	9.21
	Granted		—			—
	Vested		(86,470	)		9.11
	Forfeited		(88	)		9.39
	Outstanding, March 31, 2015		73,726		$	9.32
	Information regarding the Company’s RSUs (all unvested) and changes during the three months ended March 31, 2015 is as follows:
		Number of			Weighted
		shares			average
					price
	Outstanding, January 1, 2015		98,535		$	10.64
	Granted		120,509			11.01
	Vested		(25,566	)		11.02
	Forfeited		(415	)		10.71
	Outstanding, March 31, 2015		193,063		$	10.82

Comprehensive_Income

Comprehensive Income	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Comprehensive Income	Note 3. Comprehensive Income
	The components of other comprehensive income are as follows:
	For the quarter ended:		Before		March 31, 2015			Net of		Before			March 31, 2014			Net of
			tax amount		Tax Benefit			tax amount		tax amount			Tax Benefit			tax amount
					(Expense)								(Expense)
			(in thousands)							(in thousands)
	Net unrealized gains on available for sale securities
	Net unrealized holding gains arising during period		$	4,225	($	1,550	)	$	2,675	$	4,715		($	1,727	)	$	2,988
	Reclassification adjustment for net gains arising during the period			—		—			—		(3	)		1			(2	)
	Net unrealized gains		$	4,225	($	1,550	)	$	2,675	$	4,712		($	1,726	)	$	2,986
	Change in minimum pension liability			8		(3	)		5		8			(3	)		5
	Other comprehensive income, net		$	4,233	($	1,553	)	$	2,680	$	4,720		($	1,729	)	$	2,991
	The following table shows the changes in the balances of each of the components of other comprehensive income for the periods presented:
	Changes in Accumulated Other Comprehensive Income by Component (a)
			For the Three Months Ended							For the Three Months Ended
			March 31, 2015							March 31, 2014
			Unrealized							Unrealized Gains
			Gains on							(Losses) on
			Available-for-sale							Available-for-sale
			Securities		Pension Items			Total		Securities			Pension Items			Total
			(in thousands)
	Beginning Balance		$	1,531	($	8	)	$	1,523	($	4,647	)	($	28	)	($	4,675	)
	Other comprehensive income before classifications			2,675		5			2,680		2,988			5			2,993
	Amounts reclassified from accumulated other comprehensive income			—		—			—		(2	)		—			(2	)
	Net current period other comprehensive income			2,675		5			2,680		2,986			5			2,991
	Ending balance		$	4,206	($	3	)	$	4,203	($	1,661	)	($	23	)	($	1,684	)
	(a)	All amounts are net of tax.

Statement_of_Cash_Flow_Informa

Statement of Cash Flow Information, Supplemental Information	3 Months Ended
	Mar. 31, 2015
Supplemental Cash Flow Elements [Abstract]
Statement of Cash Flow Information, Supplemental Information	Note 4. Statement of Cash Flow Information, Supplemental Information
		For the Three Months Ended
		March 31,
		2015		2014
		(in thousands)
	Supplemental schedule of noncash investing and financing activities:
	Cash paid during the period for income taxes	$	4,706	$	3,500
	Cash paid during the period for interest		2,403		2,095
	Transfer of loans and leases into other repossessed assets and other real estate owned		266		266

Earnings_Per_Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Note 5. Earnings Per Share
	The following schedule shows the Company’s earnings per share for the periods presented:
			For the Three Months Ended
			March 31,
	(In thousands, except per share data)		2015		2014
	Net income available to common shareholders		$	8,330	$	7,163
	Less: earnings allocated to participating securities			50		36
	Net income allocated to common shareholders		$	8,280	$	7,127
	Weighted average number of common shares outstanding—basic (1)			37,800		37,683
	Share-based plans (1)			137		123
	Weighted average number of common shares— diluted (1)			37,937		37,806
	Basic earnings per share		$	0.22	$	0.19
	Diluted earnings per share		$	0.22	$	0.19
	-1	Adjusted for 5% stock dividend distributed June 17, 2014 to shareholders of record on June 3, 2014 .
	Options to purchase 113,023 shares of common stock at a weighted average price of $12.06 per share were outstanding and were not included in the computations of diluted earnings per share for the three months ended March 31, 2015 because the exercise price was greater than the average market price.
	Options to purchase 357,163 shares of common stock at a weighted average price of $11.90 per share were outstanding and were not included in the computation of diluted earnings per share for the quarter ended March 31, 2014 because the exercise price was greater than the average market price.

Investment_Securities

Investment Securities	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Note 6. Investment Securities
	AVAILABLE FOR SALE		March 31, 2015									December 31, 2014
			Amortized		Gross		Gross			Fair Value		Amortized		Gross		Gross			Fair Value
			Cost		Unrealized		Unrealized					Cost		Unrealized		Unrealized
					Gains		Losses							Gains		Losses
			(in thousands)									(in thousands)
	U.S. treasury and U.S. government agencies		$	105,797	$	897	$	(119	)	$	106,575	$	94,466	$	261	$	(807	)	$	93,920
	Mortgage-backed securities, residential			308,784		4,114		(1,030	)		311,868		309,162		2,868		(2,075	)		309,955
	Mortgage-backed securities, multifamily			4,974		92		—			5,066		4,973		3		—			4,976
	Obligations of states and political subdivisions			30,518		963		(107	)		31,374		29,764		888		(133	)		30,519
	Other debt securities			495		9		—			504		494		11		—			505
	Equity securities			16,265		2,002		(202	)		18,065		16,196		1,589		(211	)		17,574
			$	466,833	$	8,077	$	(1,458	)	$	473,452	$	455,055	$	5,620	$	(3,226	)	$	457,449
	HELD TO MATURITY		31-Mar-15									31-Dec-14
			Amortized		Gross		Gross			Fair Value		Amortized		Gross		Gross			Fair Value
			Cost		Unrealized		Unrealized					Cost		Unrealized		Unrealized
					Gains		Losses							Gains		Losses
			(in thousands)									(in thousands)
	U.S. government agencies		$	25,550	$	498	$	(10	)	$	26,038	$	20,477	$	232	$	(84	)	$	20,625
	Mortgage-backed securities, residential			40,673		806		(125	)		41,354		42,309		645		(385	)		42,569
	Mortgage-backed securities, multifamily			2,233		—		(26	)		2,207		2,259		—		(60	)		2,199
	Obligations of states and political subdivisions			45,795		755		(92	)		46,458		41,401		658		(90	)		41,969
	Other debt securities			1,528		132		—			1,660		1,530		138		—			1,668
			$	115,779	$	2,191	$	(253	)	$	117,717	$	107,976	$	1,673	$	(619	)	$	109,030
	The following table shows investment securities by stated maturity. Securities backed by mortgages have expected maturities that differ from contractual maturities because borrowers have the right to call or prepay, and are, therefore, classified separately with no specific maturity date (in thousands):
			March 31, 2015
			Available for Sale				Held to Maturity
			Amortized		Fair Value		Amortized			Fair Value
			Cost				Cost
	Due in one year or less		$	1,966	$	1,992	$	7,922		$	7,951
	Due after one year through five years			86,033		86,940		12,574			12,994
	Due after five years through ten years			47,429		48,154		45,746			46,541
	Due after ten years			1,382		1,367		6,631			6,670
				136,810		138,453		72,873			74,156
	Mortgage-backed securities			313,758		316,934		42,906			43,561
	Equity securities			16,265		18,065		—			—
	Total securities		$	466,833	$	473,452	$	115,779		$	117,717
	There were no sales of securities for the three months ended March 31, 2015 or 2014.
	Securities with a carrying value of approximately $380.6 million and $356.1 million at March 31, 2015 and December 31, 2014, respectively, were pledged to secure public deposits and for other purposes required by applicable laws and regulations.
	The following table indicates the length of time individual securities have been in a continuous unrealized loss position at March 31, 2015 and December 31, 2014:
	March 31, 2015		Less than 12 months				12 months or longer					Total
					Unrealized					Unrealized		Number of				Unrealized
	AVAILABLE FOR SALE		Fair value		Losses		Fair value			Losses		securities		Fair value		Losses
							(dollars in thousands)
	U.S. government agencies		$	33,157	$	101	$	3,982		$	18		7	$	37,139	$	119
	Mortgage-backed securities, residential			25,926		147		57,757			883		20		83,683		1,030
	Obligations of states and political subdivisions			4,123		52		1,481			55		11		5,604		107
	Equity securities			—		—		4,866			202		2		4,866		202
			$	63,206	$	300	$	68,086		$	1,158		40	$	131,292	$	1,458
	HELD TO MATURITY
	U.S. government agencies		$	5,776	$	10	$	—		$	—		1	$	5,776	$	10
	Mortgage-backed securities, residential			2,579		3		7,797			122		4		10,376		125
	Mortgage-backed securities, multifamily			1,282		4		925			22		2		2,207		26
	Obligations of states and political subdivisions			8,928		56		1,619			36		12		10,547		92
			$	18,565	$	73	$	10,341		$	180		19	$	28,906	$	253
	December 31, 2014		Less than 12 months				12 months or longer					Total
					Unrealized					Unrealized		Number of				Unrealized
	AVAILABLE FOR SALE		Fair value		Losses		Fair value			Losses		securities		Fair value		Losses
							(dollars in thousands)
	U.S. government agencies		$	5,057	$	28	$	46,135		$	779		11	$	51,192	$	807
	Mortgage-backed securities, residential			34,832		177		74,414			1,898		28		109,246		2,075
	Obligations of states and political subdivisions			1,266		29		5,033			104		12		6,299		133
	Equity securities			—		—		4,819			211		2		4,819		211
			$	41,155	$	234	$	130,401		$	2,992		53	$	171,556	$	3,226
HELD TO MATURITY
U.S. government agencies		$	—	$	—	$	5,736		$	84		1	$	5,736	$	84
Mortgage-backed securities, residential			6,236		50		17,557			335		8		23,793		385
Mortgage-backed securities, multifamily			—		—		2,199			60		2		2,199		60
Obligations of states and political subdivisions			1,290		7		4,206			83		13		5,496		90
		$	7,526	$	57	$	29,698		$	562		24	$	37,224	$	619
Management has evaluated the securities in the above table and has concluded that none of the securities are other-than-temporarily impaired. The cause of the fair values being below cost is due to interest rate movements and is deemed temporary. All investment securities are evaluated on a periodic basis to identify any factors that would require a further analysis. In evaluating the Company’s securities, management considers the following items:
	•		The Company’s ability and intent to hold the securities, including an evaluation of the need to sell the security to meet certain liquidity measures, or whether the Company has sufficient levels of cash to hold the identified security in order to recover the entire amortized cost of the security;
	•		The financial condition of the underlying issuer;
	•		The credit ratings of the underlying issuer and if any changes in the credit rating have occurred;
	•		The length of time the security’s fair value has been less than amortized cost; and
	•		Adverse conditions related to the security or its issuer if the issuer has failed to make scheduled payments or other factors.
If the above factors indicate that an additional analysis is required, management will perform and consider the results of a discounted cash flow analysis.
As of March 31, 2015, the equity securities include investments in other financial institutions for market appreciation purposes. Those equities had a purchase price of $2.6 million and a market value of $4.5 million as of March 31, 2015.
As of March 31, 2015, equity securities also included $13.5 million in investment funds that do not have a quoted market price but use net asset value per share or its equivalent to measure fair value.
The funds include $2.9 million in funds that are primarily invested in community development loans that are guaranteed by the Small Business Administration (SBA). Because the funds are primarily guaranteed by the federal government there are minimal changes in market value between accounting periods. These funds can be redeemed with 60 days notice at the net asset value less unpaid management fees with the approval of the fund manager. As of March 31, 2015, the net amortized cost equaled the market value of the investment. There are no unfunded commitments related to this investment.
The funds also include $10.6 million in funds that are invested in government guaranteed loans, mortgage-backed securities, small business loans and other instruments supporting affordable housing and economic development. The Company may redeem these funds at the net asset value calculated at the end of the current business day less any unpaid management fees. As of March 31, 2015, the amortized cost of these securities was $10.7 million and the fair value was $10.6 million. There are no restrictions on redemptions for the holdings in these investments other than the notice required by the fund manager. There are no unfunded commitments related to this investment.

Loans_Leases_and_Other_Real_Es

Loans, Leases and Other Real Estate	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Loans, Leases and Other Real Estate	Note 7. Loans, Leases and Other Real Estate.
	The following sets forth the composition of Lakeland’s loan and lease portfolio as of March 31, 2015 and December 31, 2014:
			March 31,			December 31,
			2015			2014
			(in thousands)
	Commercial, secured by real estate		$	1,562,898		$	1,529,761
	Commercial, industrial and other			244,162			238,252
	Leases			54,271			54,749
	Real estate-residential mortgage			426,339			431,190
	Real estate-construction			73,230			64,020
	Home equity and consumer			330,805			337,642
	Total loans			2,691,705			2,655,614
	Less: deferred fees			(1,909	)		(1,788	)
	Loans, net of deferred fees		$	2,689,796		$	2,653,826
	At March 31, 2015 and December 31, 2014, home equity and consumer loans included overdraft deposit balances of $529,000 and $791,000, respectively. At March 31, 2015 and December 31, 2014, the Company had $380.7 million and $338.5 million in residential loans pledged for actual and potential borrowings at the Federal Home Loan Bank of New York (FHLB).
	Non-Performing Assets and Past Due Loans
	The following schedule sets forth certain information regarding the Company’s non-performing assets and its accruing troubled debt restructurings:
	(in thousands)		March 31,			December 31,
			2015			2014
	Commercial, secured by real estate		$	6,825		$	7,424
	Commercial, industrial and other			285			308
	Leases			111			88
	Real estate - residential mortgage			9,552			9,246
	Real estate - construction			169			188
	Home equity and consumer			3,472			3,415
	Total non-accrual loans and leases		$	20,414		$	20,669
	Other real estate and other repossessed assets			826			1,026
	TOTAL NON-PERFORMING ASSETS		$	21,240		$	21,695
	Troubled debt restructurings, still accruing		$	11,538		$	10,579
	Non-accrual loans included $2.0 million and $1.3 million of troubled debt restructurings as of March 31, 2015 and December 31, 2014, respectively. As of March 31, 2015, the Company had $8.4 million in consumer mortgage loans that were in the process of foreclosure.
	An age analysis of past due loans, segregated by class of loans as of March 31, 2015 and December 31, 2014, is as follows:
	March 31, 2015		30-59			60-89			Greater			Total Past			Current			Total Loans			Recorded
			Days			Days			Than 89			Due						and Leases			Investment greater
			Past Due			Past Due			Days												than 89 Days and
																					still accruing
			(in thousands)
	Commercial, secured by real estate		$	5,810		$	1,915		$	5,860		$	13,585		$	1,549,313		$	1,562,898		$	—
	Commercial, industrial and other			623			905			11			1,539			242,623			244,162			—
	Leases			253			33			111			397			53,874			54,271			—
	Real estate—residential mortgage			1,482			118			8,495			10,095			416,244			426,339			—
	Real estate—construction			—			—			168			168			73,062			73,230			—
	Home equity and consumer			1,558			343			2,756			4,657			326,148			330,805			134
			$	9,726		$	3,314		$	17,401		$	30,441		$	2,661,264		$	2,691,705		$	134
	December 31, 2014
	Commercial, secured by real estate		$	2,714		$	2,999		$	5,972		$	11,685		$	1,518,076		$	1,529,761		$	—
	Commercial, industrial and other			944			2			308			1,254			236,998			238,252			—
	Leases			108			24			88			220			54,529			54,749			—
	Real estate—residential mortgage			3,325			354			6,710			10,389			420,801			431,190			—
	Real estate—construction			224			—			188			412			63,608			64,020			—
	Home equity and consumer			1,583			598			2,951			5,132			332,510			337,642			66
			$	8,898		$	3,977		$	16,217		$	29,092		$	2,626,522		$	2,655,614		$	66
	Impaired Loans
	The Company defines impaired loans as all non-accrual loans and leases with recorded investments of $500,000 or greater. Impaired loans also includes all loans modified in troubled debt restructurings. Impaired loans as of March 31, 2015, March 31, 2014 and December 31, 2014 are as follows:
	March 31, 2015		Recorded			Contractual			Specific			Interest			Average
			Investment in			Unpaid			Allowance			Income			Investment in
			Impaired loans			Principal						Recognized			Impaired loans
						Balance
			(in thousands)
	Loans without specific allowance:
	Commercial, secured by real estate		$	12,802		$	15,058		$	—		$	99		$	13,177
	Commercial, industrial and other			1,177			1,281			—			3			233
	Leases			—			—			—			—			—
	Real estate-residential mortgage			2,160			2,160			—			4			2,162
	Real estate-construction			169			169			—			—			178
Home equity and consumer			765			765			—			—			741
Loans with specific allowance:
Commercial, secured by real estate			5,563			5,695			351			58			5,449
Commercial, industrial and other			684			1,191			5			5			695
Leases			14			14			14			—			—
Real estate-residential mortgage			753			753			72			9			753
Real estate-construction			394			394			2			1			92
Home equity and consumer			1,331			1,331			1,014			16			1,243
Total:
Commercial, secured by real estate		$	18,365		$	20,753		$	351		$	157		$	18,626
Commercial, industrial and other			1,861			2,472			5			8			928
Leases			14			14			14			—			—
Real estate—residential mortgage			2,913			2,913			72			13			2,915
Real estate-construction			563			563			2			1			270
Home equity and consumer			2,096			2,096			1,014			16			1,984
		$	25,812		$	28,811		$	1,458		$	195		$	24,723
March 31, 2014		Recorded			Contractual			Specific			Interest			Average
		Investment in			Unpaid			Allowance			Income			Investment in
		Impaired loans			Principal						Recognized			Impaired loans
					Balance
		(in thousands)
Loans without specific allowance:
Commercial, secured by real estate		$	10,044		$	10,137		$	—		$	56		$	9,026
Commercial, industrial and other			46			147			—			42			3,652
Real estate-residential mortgage			567			567			—			—			592
Real estate-construction			495			2,411			—			—			498
Home equity and consumer			263			263			—			4			263
Loans with specific allowance:
Commercial, secured by real estate			11,891			12,918			1,005			88			10,740
Commercial, industrial and other			153			153			68			2			153
Real estate-residential mortgage			—			—			—			—			—
Real estate-construction			—			—			—			—			—
Home equity and consumer			1,259			1,259			189			10			928
Total:
Commercial, secured by real estate		$	21,935		$	23,055		$	1,005		$	144		$	19,766
Commercial, industrial and other			199			300			68			44			3,805
Real estate—residential mortgage			567			567			—			—			592
Real estate-construction			495			2,411			—			—			498
Home equity and consumer			1,522			1,522			189			14			1,191
		$	24,718		$	27,855		$	1,262		$	202		$	25,852
December 31, 2014		Recorded			Contractual			Specific			Interest			Average
		Investment in			Unpaid			Allowance			Income			Investment in
		Impaired loans			Principal						Recognized			Impaired loans
					Balance
		(in thousands)
Loans without specific allowance:
Commercial, secured by real estate		$	14,172		$	15,520		$	—		$	436		$	16,092
Commercial, industrial and other			327			1,697			—			43			1,513
Real estate-residential mortgage			1,681			1,681			—			—			308
Real estate-construction			188			552			—			—			464
Home equity and consumer			741			741			—			7			153
Loans with specific allowance:
Commercial, secured by real estate			5,666			5,818			634			156			3,858
Commercial, industrial and other			425			425			10			9			342
Real estate-residential mortgage			1,238			1,238			217			19			438
Real estate-construction			—			—			—			—			—
Home equity and consumer			1,255			1,255			1,031			41			975
Total:
Commercial, secured by real estate		$	19,838		$	21,338		$	634		$	592		$	19,950
Commercial, industrial and other			752			2,122			10			52			1,855
Real estate—residential mortgage			2,919			2,919			217			19			746
Real estate-construction			188			552			—			—			464
Home equity and consumer			1,996			1,996			1,031			48			1,128
		$	25,693		$	28,927		$	1,892		$	711		$	24,143
Interest that would have been accrued on impaired loans during the first three months of 2015 and 2014 had the loans been performing under original terms would have been $420,000 and $410,000, respectively. Interest that would have accrued for the year ended December 31, 2014 was $1.8 million.
Credit Quality Indicators
The class of loans are determined by internal risk rating. Management closely and continually monitors the quality of its loans and leases and assesses the quantitative and qualitative risks arising from the credit quality of its loans and leases. It is the policy of Lakeland to require that a Credit Risk Rating be assigned to all commercial loans and loan commitments. The Credit Risk Rating System has been developed by management to provide a methodology to be used by Loan Officers, department heads and Senior Management in identifying various levels of credit risk that exist within Lakeland’s loan portfolios. The risk rating system assists Senior Management in evaluating Lakeland’s commercial loan portfolio, analyzing trends, and determining the proper level of required reserves to be recommended to the Board. In assigning risk ratings, management considers, among other things, a borrower’s debt service coverage, earnings strength, loan to value ratios, industry conditions and economic conditions. Management categorizes commercial loans and commitments into a one (1) to nine (9) numerical structure with rating 1 being the strongest rating and rating 9 being the weakest. Ratings 1 through 5W are considered ‘Pass’ ratings.
The following table shows the Company’s commercial loan portfolio as of March 31, 2015 and December 31, 2014, by the risk ratings discussed above (in thousands):
March 31, 2015		Commercial,			Commercial,
		secured by			industrial			Real estate-
Risk Rating		real estate			and other			construction
1		$	—		$	1,477		$	—
2			—			9,789			—
3			67,404			52,503			—
4			501,876			76,275			10,643
5			868,916			66,169			55,002
5W - Watch			56,925			18,858			3,003
6 - Other Assets Especially Mentioned			27,210			4,141			3,101
7 - Substandard			40,567			14,950			1,481
8 - Doubtful			—			—			—
9 - Loss			—			—			—
Total		$	1,562,898		$	244,162		$	73,230
December 31, 2014		Commercial,			Commercial,
		secured by			industrial			Real estate-
Risk Rating		real estate			and other			construction
1		$	—		$	1,040		$	—
2			—			8,755			—
3			69,243			30,386			—
4			479,667			91,836			7,527
5			867,023			69,723			51,833
5W - Watch			40,991			15,572			225
6 - Other Assets Especially Mentioned			27,764			8,057			2,710
7 - Substandard			45,073			12,883			1,725
8 - Doubtful			—			—			—
9 - Loss			—			—			—
Total		$	1,529,761		$	238,252		$	64,020
The risk rating tables above do not include consumer or residential loans or leases because they are evaluated on their payment status.
Allowance for Loan and Lease Losses
The following table details activity in the allowance for loan and lease losses by portfolio segment for the three months ended March 31, 2015 and 2014:
Three Months Ended March 31, 2015		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
Allowance for Loan and Lease Losses:		secured by			industrial						residential			construction			equity and
		real estate			and other						mortgage						consumer
		(in thousands)
Beginning Balance		$	13,577		$	3,196		$	582		$	4,020		$	553		$	6,333		$	2,423	$	30,684
Charge-offs			(546	)		(10	)		(427	)		(17	)		(20	)		(261	)		—		(1,281	)
Recoveries			39			42			20			1			100			30			—		232
Provision			(510	)		79			863			(706	)		4			822			318		870
Ending Balance		$	12,560		$	3,307		$	1,038		$	3,298		$	637		$	6,924		$	2,741	$	30,505
Three Months Ended March 31, 2014		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
Allowance for Loan and Lease Losses:		secured by			industrial						residential			construction			equity and
		real estate			and other						mortgage						consumer
		(in thousands)
Beginning Balance		$	14,463		$	5,331		$	504		$	3,214		$	542		$	2,737		$	3,030	$	29,821
Charge-offs			(1,647	)		(13	)		(39	)		(155	)		—			(601	)		—		(2,455	)
Recoveries			34			591			—			6			—			34			—		665
Provision			1,285			(403	)		(5	)		(97	)		(59	)		442			326		1,489
Ending Balance		$	14,135		$	5,506		$	460		$	2,968		$	483		$	2,612		$	3,356	$	29,520
Loans receivable summarized by portfolio segment and impairment method are as follows:
		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Total
		secured by			industrial						residential			construction			equity and
		real estate			and other						mortgage						consumer
		(in thousands)
At March 31, 2015
Ending Balance: Individually evaluated for impairment		$	18,365		$	1,861		$	14		$	2,913		$	563		$	2,096		$	25,812
Ending Balance: Collectively evaluated for impairment			1,544,533			242,301			54,257			423,426			72,667			328,709		$	2,665,893
Ending Balance (1)		$	1,562,898		$	244,162		$	54,271		$	426,339		$	73,230		$	330,805		$	2,691,705
-1	Excludes deferred fees
		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Total
		secured by			industrial						residential			construction			equity and
		real estate			and other						mortgage						consumer
		(in thousands)
At December 31, 2014
Ending Balance: Individually evaluated for impairment		$	19,838		$	752		$	—		$	2,919		$	188		$	1,996		$	25,693
Ending Balance: Collectively evaluated for impairment			1,509,923			237,500			54,749			428,271			63,832			335,646		$	2,629,921
Ending Balance(1)		$	1,529,761		$	238,252		$	54,749		$	431,190		$	64,020		$	337,642		$	2,655,614
-1	Excludes deferred fees
The allowance for loan and lease losses is summarized by portfolio segment and impairment classification as follows:
		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
		secured by			industrial						residential			construction			equity and
		real estate			and other						mortgage						consumer
At March 31, 2015		(in thousands)
Ending Balance: Individually evaluated for impairment		$	351		$	5		$	14		$	72		$	2		$	1,014		$	—	$	1,458
Ending Balance: Collectively evaluated for impairment			12,209			3,302			1,024			3,226			635			5,910			2,741	$	29,047
Ending Balance		$	12,560		$	3,307		$	1,038		$	3,298		$	637		$	6,924		$	2,741	$	30,505
		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
		secured by			industrial						residential			construction			equity and
		real estate			and other						mortgage						consumer
At December 31, 2014		(in thousands)
Ending Balance: Individually evaluated for impairment		$	634		$	10		$	—		$	217		$	—		$	1,031		$	—	$	1,892
Ending Balance: Collectively evaluated for impairment			12,943			3,186			582			3,803			553			5,302			2,423	$	28,792
Ending Balance		$	13,577		$	3,196		$	582		$	4,020		$	553		$	6,333		$	2,423	$	30,684
Lakeland also maintains a reserve for unfunded lending commitments which is included in other liabilities. This reserve was $1.2 million and $1.1 million at March 31, 2015 and December 31, 2014, respectively. The Company analyzes the adequacy of the reserve for unfunded lending commitments in conjunction with its analysis of the adequacy of the allowance for loan and lease losses. For more information on this analysis, see “Risk Elements” in Management’s Discussion and Analysis.
Troubled Debt Restructurings
Troubled debt restructurings are those loans where concessions have been made due to borrowers’ financial difficulties. Restructured loans typically involve a modification of terms such as a reduction of the stated interest rate, a moratorium of principal payments and/or an extension of the maturity date at a stated interest rate lower than the current market rate of a new loan with similar risk. The Company considers the potential losses on these loans as well as the remainder of its impaired loans while considering the adequacy of the allowance for loan and lease losses.
The following table summarizes loans that have been restructured during the three months ended March 31, 2015 and 2014:
		For the Three Months Ended									For the Three Months Ended
		March 31, 2015									March 31, 2014
					Pre-			Post-						Pre-			Post-
					Modification			Modification						Modification			Modification
					Outstanding			Outstanding						Outstanding			Outstanding
		Number of			Recorded			Recorded			Number of			Recorded			Recorded
		Contracts			Investment			Investment			Contracts			Investment			Investment
		(Dollars in thousands)									(Dollars in thousands)
Troubled Debt Restructurings:
Commercial, secured by real estate			—		$	—		$	—			—		$	—		$	—
Commercial, industrial and other			1			1,149			1,149			—			—			—
Leases			1			14			14			—			—			—
Real estate—residential mortgage			—			—			—			—			—			—
Real estate—construction			1			396			396			—			—			—
Home equity and consumer			1			9			9			3			335			335
			4		$	1,568		$	1,568			3		$	335		$	335
The following table summarizes as of March 31, 2015 and 2014, loans that were restructured within the previous 12 months that have subsequently defaulted:
		For the Three Months Ended
		March 31, 2015						March 31, 2014
		Number of			Recorded			Number of			Recorded
		Contracts			Investment			Contracts			Investment
		(Dollars in thousands)						(Dollars in thousands)
Defaulted Troubled Debt Restructurings:
Commercial, secured by real estate			—		$	—			2		$	214
Commercial, industrial and other			—			—			—			—
Leases			—			—			—			—
Real estate—residential mortgage			1			483			—			—
Real estate—construction			—			—			—			—
Home equity and consumer			1			2			1			236
			2		$	485			3		$	450
Mortgages Held for Sale
Residential mortgages originated by the bank and held for sale in the secondary market are carried at the lower of cost or fair market value. Fair market value is generally determined by the value of purchase commitments on individual loans. Losses are recorded as a valuation allowance and charged to earnings. As of March 31, 2015, the Company had $1.6 million in mortgages held for sale compared to $592,000 as of December 31, 2014.
Other Real Estate and Other Repossessed Assets
At March 31, 2015 the Company had other real estate owned of $826,000 and had no other repossessed assets. All of the other real estate owned that the Company held at March 31, 2015, was residential property acquired as a result of foreclosure proceedings or through a deed in lieu of foreclosure. At December 31, 2014, the Company had other real estate owned and other repossessed assets of $977,000 and 49,000, respectively.

Estimated_Fair_Value_of_Financ

Estimated Fair Value of Financial Instruments and Fair Value Measurement	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Estimated Fair Value of Financial Instruments and Fair Value Measurement	Note 8. Estimated Fair Value of Financial Instruments and Fair Value Measurement
	Fair Value Measurement
	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for an asset or liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels giving the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest level priority to unobservable inputs (level 3 measurements). The following describes the three levels of fair value hierarchy:
	Level 1 – unadjusted quoted prices in active markets for identical assets or liabilities; includes U.S. Treasury Notes, and other U.S. Government Agency securities that actively trade in over-the-counter markets; equity securities and mutual funds that actively trade in over-the-counter markets.
	Level 2 – quoted prices for similar assets or liabilities in active markets; or quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs other than quoted prices that are observable for the asset or liability including yield curves, volatilities, and prepayment speeds.
	Level 3 – unobservable inputs for the asset or liability that reflect the Company’s own assumptions about assumptions that market participants would use in the pricing of the asset or liability and that are consequently not based on market activity but upon particular valuation techniques.
	The Company’s assets that are measured at fair value on a recurring basis are its available for sale investment securities. The Company obtains fair values on its securities using information from a third party servicer. If quoted prices for securities are available in an active market, those securities are classified as Level 1 securities. The Company has U.S. Treasury Notes and certain equity securities that are classified as Level 1 securities. Level 2 securities were primarily comprised of U.S. Agency bonds, residential mortgage-backed securities, obligations of state and political subdivisions and corporate securities. Fair values were estimated primarily by obtaining quoted prices for similar assets in active markets or through the use of pricing models supported with market data information. Standard inputs include benchmark yields, reported trades, issuer spreads, bids and offers. On a quarterly basis, the Company reviews the pricing information received from the Company’s third party pricing service. This review includes a comparison to non-binding third-party quotes.
	The fair values of derivatives are based on valuation models from a third party using current market terms (including interest rates and fees), the remaining terms of the agreements and the credit worthiness of the counter party as of the measurement date (Level 2).
	The following table sets forth the Company’s financial assets that were accounted for at fair value on a recurring basis as of the periods presented by level within the fair value hierarchy. During the three months ended March 31, 2015, the Company did not make any transfers between any levels within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:
		Quoted Prices in		Significant		Significant		Total
		Active Markets		Other		Unobservable		Fair Value
		for Identical		Observable		Inputs
		Assets		Inputs		(Level 3)
		(Level 1)		(Level 2)
		(in thousands)
	March 31, 2015
	Assets:
	Investment securities, available for sale
	U.S. treasury and government agencies	$	8,425	$	98,150	$	—	$	106,575
	Mortgage backed securities		—		316,934		—		316,934
	Obligations of states and political subdivisions		—		31,374		—		31,374
	Corporate debt securities		—		504		—		504
	Equity securities		4,508		13,557		—		18,065
	Total securities available for sale		12,933		460,519		—		473,452
	Non-hedging interest rate derivatives		—		209		—		209
	Total Assets	$	12,933		460,728		—	$	473,661
	Non-hedging interest rate derivatives	$	—	$	209	$	—	$	209
	Total Liabilities	$	—	$	209	$	—	$	209
	December 31, 2014
	Assets:
	Investment securities, available for sale
	U.S. treasury and government agencies	$	8,321	$	85,599	$	—	$	93,920
	Mortgage backed securities		—		314,931		—		314,931
	Obligations of states and political subdivisions		—		30,519		—		30,519
	Corporate debt securities		—		505		—		505
	Equity securities		4,154		13,420		—		17,574
	Total securities available for sale		12,475		444,974		—		457,449
	Non-hedging interest rate derivatives		—		37		—		37
	Total Assets	$	12,475	$	445,011	$	—	$	457,486
	Non-hedging interest rate derivatives	$	—	$	37	$	—	$	37
	Total Liabilities	$	—	$	37	$	—	$	37
	The following table sets forth the Company’s assets subject to fair value adjustments (impairment) on a nonrecurring basis. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:
		Quoted Prices in		Significant		Significant		Total
		Active Markets		Other		Unobservable		Fair Value
		for Identical		Observable		Inputs
		Assets		Inputs		(Level 3)
		(Level 1)		(Level 2)
		(in thousands)
	March 31, 2015
	Assets:
	Impaired Loans and Leases	$	—	$	—	$	25,812	$	25,812
	Loans held for sale		—		1,598		—		1,598
	Other real estate owned and other repossessed assets		—		—		826		826
	December 31, 2014
	Assets:
	Impaired Loans and Leases	$	—	$	—	$	25,693	$	25,693
	Loans held for sale		—		592		—		592
	Other real estate owned and other repossessed assets		—		—		1,026		1,026
	Impaired loans are evaluated and valued at the time the loan is identified as impaired at the lower of cost or market value of the underlying collateral. Because most of Lakeland’s impaired loans are collateral dependent, fair value is generally measured based on the value of the collateral, less estimated costs to sell, securing these loans and leases and is classified at a level 3 in the fair value hierarchy. Collateral may be real estate, accounts receivable, inventory, equipment and/or other business assets. The value of the real estate is assessed based on appraisals by qualified third party licensed appraisers. The appraisers may use the sales comparison approach, the cost approach or the income approach to value the collateral using discount rates (with ranges of 5-11%) or capitalization rates (with ranges of 5-9%) to evaluate the property. The value of the equipment may be determined by an appraiser, if significant, inquiry through a recognized valuation resource, or by the value on the borrower’s financial statements. Field examiner reviews on business assets may be conducted based on the loan exposure and reliance on this type of collateral. Appraised and reported values may be adjusted based on management’s historical knowledge, changes in market conditions from the time of valuation, and/or management’s expertise and knowledge of the client and client’s business. Loans that are not collateral dependent are evaluated based on a discounted cash flow method. Impaired loans are reviewed and evaluated on at least a quarterly basis for additional impairment and adjusted accordingly, based on the same factors identified above.
	The Company has a held for sale loan portfolio that consists of residential mortgages that are being sold in the secondary market. The Company records these mortgages at the lower of cost or market value. Fair value is generally determined by the value of purchase commitments.
	Other real estate owned (OREO) and other repossessed assets, representing property acquired through foreclosure, are recorded at fair value less estimated disposal costs of the acquired property on the date of acquisition and thereafter remeasured and carried at lower of cost or fair market value. Fair value on other real estate owned is based on the appraised value of the collateral using the sales comparison approach or the income approach with discount rates or capitalization rates similar to those used in impaired loan valuation. The fair value of other repossessed assets is estimated by inquiry through recognized valuation resources.
	Changes in the assumptions or methodologies used to estimate fair values may materially affect the estimated amounts. Changes in economic conditions, locally or nationally, could impact the value of the estimated amounts of impaired loans, OREO and other repossessed assets.
	Fair Value of Certain Financial Instruments
	Estimated fair values have been determined by the Company using the best available data and an estimation methodology suitable for each category of financial instruments. Management is concerned that there may not be reasonable comparability between institutions due to the wide range of permitted assumptions and methodologies in the absence of active markets. This lack of uniformity gives rise to a high degree of subjectivity in estimating financial instrument fair values.
The estimation methodologies used, the estimated fair values, and recorded book balances at March 31, 2015 and December 31, 2014 are outlined below.
This summary, as well as the table below, excludes financial assets and liabilities for which carrying value approximates fair value. For financial assets, these include cash and cash equivalents. For financial liabilities, these include noninterest bearing demand deposits, savings and interest-bearing transaction accounts and federal funds sold and securities sold under agreements to repurchase. The estimated fair value of demand, savings and interest-bearing transaction accounts is the amount payable on demand at the reporting date. Carrying value is used because there is no stated maturity on these accounts, and the customer has the ability to withdraw the funds immediately. Also excluded from this summary and the following table are those financial instruments recorded at fair value on a recurring basis, as previously described.
The fair value of Investment Securities Held to Maturity was measured using information from the same third-party servicer used for Investment Securities Available for Sale using the same methodologies discussed above. Investment Securities Held to Maturity includes $5.2 million in short-term municipal bond anticipation notes that are non-rated and do not have an active secondary market or information readily available on standard financial systems. As a result, the securities are classified as Level 3 securities. These are investments in municipalities in the Company’s market area, and management performs a credit analysis on the municipality before investing in these securities.
Federal Home Loan Bank of New York (FHLB) stock is an equity interest that can be sold to the issuing FHLB, to other FHLBs, or to other member banks at its par value. Because ownership of these securities is restricted, they do not have a readily determinable fair value. As such, the Company’s FHLB Stock is recorded at cost or par value and is evaluated for impairment each reporting period by considering the ultimate recoverability of the investment rather than temporary declines in value. The Company’s evaluation primarily includes an evaluation of liquidity, capitalization, operating performance, commitments, and regulatory or legislative events.
The net loan portfolio at March 31, 2015 and December 31, 2014 has been valued using a present value discounted cash flow where market prices were not available. The discount rate used in these calculations is the estimated current market rate adjusted for credit risk. The valuation of the Company’s loan portfolio is consistent with accounting guidance but does not fully incorporate the exit price approach.
For fixed maturity certificates of deposit, fair value was estimated based on the present value of discounted cash flows using the rates currently offered for deposits of similar remaining maturities. The carrying amount of accrued interest payable approximates its fair value.
The fair value of long-term debt is based upon the discounted value of contractual cash flows. The Company estimates the discount rate using the rates currently offered for similar borrowing arrangements. The fair value of subordinated debentures is based on bid/ask prices from brokers for similar types of instruments.
The fair values of commitments to extend credit and standby letters of credit are estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value of guarantees and letters of credit is based on fees currently charged for similar agreements or on the estimated cost to terminate them or otherwise settle the obligations with the counterparties at the reporting date. The fair value of commitments to extend credit and standby letters of credit are deemed immaterial.
The following table presents the carrying values, fair values and placement in the fair value hierarchy of the Company’s financial instruments as of March 31, 2015 and December 31, 2014:
	Carrying		Fair		Quoted Prices in		Significant		Significant
	Value		Value		Active Markets		Other		Unobservable
					for Identical		Observable		Inputs
					Assets		Inputs		(Level 3)
					(Level 1)		(Level 2)
	(in thousands)
March 31, 2015
Financial Instruments—Assets
Investment securities held to maturity	$	115,779	$	117,717	$	—	$	112,542	$	5,175
Federal Home Loan Bank and other membership bank stocks		10,755		10,755		—		10,755		—
Loans and leases, net		2,659,291		2,665,726		—		—		2,665,726
Financial Instruments—Liabilities
Certificates of Deposit		291,703		291,627		—		291,627		—
Other borrowings		222,728		228,388		—		228,388		—
Subordinated debentures		41,238		30,929		—		—		30,929
December 31, 2014
Financial Instruments—Assets
Investment securities held to maturity	$	107,976	$	109,030	$	—	$	103,916	$	5,114
Federal Home Loan Bank and other membership bank stocks		9,846		9,846		—		9,846		—
Loans and leases, net		2,623,142		2,624,581		—		—		2,624,581
Financial Instruments—Liabilities
Certificates of Deposit		279,962		279,439		—		279,439		—
Other borrowings		202,498		205,343		—		205,343		—
Subordinated debentures		41,238		30,929		—		—		30,929

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Note 9. Derivatives
	Lakeland is a party to interest rate derivatives that are not designated as hedging instruments. These derivatives relate to interest rate swaps that the Company enters into with customers to allow customers to convert variable rate loans to a fixed rate. Lakeland pays interest to the customer at a floating rate on the notional amount and receives interest from the customer at a fixed rate for the same notional amount. At the same time the interest rate swap is entered into with the customer, an offsetting interest rate swap is entered into with another financial institution. Lakeland pays the other financial institution interest at the same fixed rate on the same notional amount as the swap entered into with the customer, and receives interest from the financial institution for the same floating rate on the same notional amount. The changes in the fair value of the swaps offset each other, except for the credit risk of the counterparties, which is determined by taking into consideration the risk rating, probability of default and loss of given default for all counterparties. As of March 31, 2015 and December 31, 2014, Lakeland had $491,000 and $505,000, respectively, in available for sale securities pledged for collateral on its interest rate swaps with the financial institution.
	The following table presents summary information regarding these derivatives for the periods presented (dollars in thousands):
	March 31, 2015	Notional			Average		Weighted Average			Weighted Average		Fair Value
		Amount			Maturity (Years)		Rate Fixed			Variable Rate
	Customer interest rate swaps	$	(17,176	)		5.5		3.84	%		1 Mo Libor + 2.21	$	209
	3rd Party interest rate swaps		17,176			5.5		3.84	%		1 Mo Libor + 2.21		(209	)
	December 31, 2014	Notional			Average		Weighted Average			Weighted Average		Fair Value
		Amount			Maturity (Years)		Rate Fixed			Variable Rate
	Customer interest rate swaps	$	(17,279	)		5.7		3.84	%		1 Mo Libor + 2.21	$	37
	3rd party interest rate swaps		17,279			5.7		3.84	%		1 Mo Libor + 2.21		($37	)

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Note 10. Goodwill and Intangible Assets
	The Company has recorded goodwill of $110.0 million at March 31, 2015 and December 31, 2014 which includes $22.9 million from the Somerset Hills acquisition and $87.1 million from prior acquisitions. The Company reviews its goodwill and intangible assets annually, on November 30, or more frequently if conditions warrant, for impairment. In testing goodwill for impairment, the Company compares the estimated fair value of its reporting unit to its carrying amount, including goodwill. The Company has determined that it has one reporting unit, Community Banking.
	The Company recorded $2.7 million in core deposit intangible for the Somerset Hills acquisition. Year-to-date, it has amortized $111,000 in core deposit intangible. The estimated future amortization expense for each of the succeeding five years ended December 31 is as follows (dollars in thousands):
	For the year ended:
	2015	$	304
	2016		366
	2017		316
	2018		267
	2019		218

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Note 11. Recent Accounting Pronouncements
	In April 2015, the Financial Accounting Standards Board (FASB) issued an accounting standards update requiring that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of the debt liability consistent with the presentation of debt discounts. The purpose of this update is to simplify the presentation of debt issuance costs and to align the US GAAP presentation of debt more closely with international accounting standards. This amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this update is not expected to have a material impact on the Company’s financial statements.
	In January 2015, the FASB issued an accounting standards update regarding the elimination of the concept of the extraordinary items from the statement of operations. The purpose of this update is to simplify the statement of operations presentation and to align the US GAAP income statement more closely with international accounting standards. This update is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this update is not expected to have a material impact on the Company’s financial statements.
	In June 2014, the FASB issued an accounting standards update regarding share –based payments that requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. This update is effective for interim and annual periods beginning after December 15, 2015. The amendments can be applied prospectively to all awards granted or modified after the effective date or retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented and to all new or modified awards thereafter. Early adoption is permitted. The Company has determined that adoption of this update is not expected to have a material impact on its accounting and disclosures.
	In June 2014, the FASB issued an accounting standards update that aligns the accounting for repurchase to maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. This update is effective for the first interim or annual period beginning after December 15, 2014. In addition, the disclosure of certain transactions accounted for as a sale is effective for the first interim or annual period beginning on or after December 15, 2014, and the disclosure for transactions accounted for as secured borrowings is required for annual periods beginning after December 15, 2014, and interim periods after March 15, 2015. Early adoption is prohibited. The Company does not engage in repurchase to maturity transactions, and therefore has determined that the adoption of this update is not expected to have a material impact on the Company’s financial results.
	In May 2014, the FASB issued an accounting standards update that clarifies the principles for recognizing revenue. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to a customer in an amount that reflects the consideration to which the entity expects to be entitled in exchange for these goods or services. This guidance is effective for the Company beginning January 1, 2017. The Company is still evaluating the potential impact on the Company’s financial statements.
	In January 2014, the FASB issued an accounting standards update to clarify when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan should be derecognized and the real estate recognized. These amendments clarify that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either: (a) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure; or (b) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. This update is effective for annual periods and interim periods within those annual periods beginning after December 15, 2014. The Company adopted this update in the first quarter of 2015, and the disclosures required are included in Note 7. The adoption of this update did not have a material impact on the Company’s financial statements.

Significant_Accounting_Policie1

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation.
	This quarterly report presents the consolidated financial statements of Lakeland Bancorp, Inc. (the Company) and its subsidiary, Lakeland Bank (Lakeland). The accounting and reporting policies of the Company conform with accounting principles generally accepted in the United States of America (U.S. GAAP) and predominant practices within the banking industry.
	The Company’s unaudited interim financial statements reflect all adjustments, such as normal recurring accruals that are, in the opinion of management, necessary for the fair presentation of the results of the interim periods. The results of operations for the quarter ended March 31, 2015 do not necessarily indicate the results that the Company will achieve for all of 2015. You should read these interim financial statements in conjunction with the audited consolidated financial statements and accompanying notes that are presented in the Lakeland Bancorp, Inc. Annual Report on Form 10-K for the year ended December 31, 2014.
	On May 21, 2014, the Company’s Board of Directors authorized a 5% stock dividend which was distributed on June 17, 2014 to holders of record as of June 3, 2014. All weighted average, actual share and per share information set forth in this Quarterly Report on Form 10-Q have been adjusted retroactively for the effects of the stock dividend.
	The financial information in this quarterly report has been prepared in accordance with the Company’s customary accounting practices. Certain information and footnote disclosures required under U.S. GAAP have been condensed or omitted, as permitted by rules and regulations of the Securities and Exchange Commission.
	Certain reclassifications have been made to prior period financial statements to conform to the 2015 presentation.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	In April 2015, the Financial Accounting Standards Board (FASB) issued an accounting standards update requiring that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of the debt liability consistent with the presentation of debt discounts. The purpose of this update is to simplify the presentation of debt issuance costs and to align the US GAAP presentation of debt more closely with international accounting standards. This amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this update is not expected to have a material impact on the Company’s financial statements.
	In January 2015, the FASB issued an accounting standards update regarding the elimination of the concept of the extraordinary items from the statement of operations. The purpose of this update is to simplify the statement of operations presentation and to align the US GAAP income statement more closely with international accounting standards. This update is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. The adoption of this update is not expected to have a material impact on the Company’s financial statements.
	In June 2014, the FASB issued an accounting standards update regarding share –based payments that requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. This update is effective for interim and annual periods beginning after December 15, 2015. The amendments can be applied prospectively to all awards granted or modified after the effective date or retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented and to all new or modified awards thereafter. Early adoption is permitted. The Company has determined that adoption of this update is not expected to have a material impact on its accounting and disclosures.
	In June 2014, the FASB issued an accounting standards update that aligns the accounting for repurchase to maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. This update is effective for the first interim or annual period beginning after December 15, 2014. In addition, the disclosure of certain transactions accounted for as a sale is effective for the first interim or annual period beginning on or after December 15, 2014, and the disclosure for transactions accounted for as secured borrowings is required for annual periods beginning after December 15, 2014, and interim periods after March 15, 2015. Early adoption is prohibited. The Company does not engage in repurchase to maturity transactions, and therefore has determined that the adoption of this update is not expected to have a material impact on the Company’s financial results.
	In May 2014, the FASB issued an accounting standards update that clarifies the principles for recognizing revenue. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to a customer in an amount that reflects the consideration to which the entity expects to be entitled in exchange for these goods or services. This guidance is effective for the Company beginning January 1, 2017. The Company is still evaluating the potential impact on the Company’s financial statements.
	In January 2014, the FASB issued an accounting standards update to clarify when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan should be derecognized and the real estate recognized. These amendments clarify that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either: (a) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure; or (b) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. This update is effective for annual periods and interim periods within those annual periods beginning after December 15, 2014. The Company adopted this update in the first quarter of 2015, and the disclosures required are included in Note 7. The adoption of this update did not have a material impact on the Company’s financial statements.

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Option Activity under the Company's Stock Option Plans	Option activity under the Company’s stock option plans is as follows:
		Number of			Weighted		Weighted		Aggregate
		shares			average		average		intrinsic value
					exercise		remaining
					price		contractual
							term
							(in years)
	Outstanding, January 1, 2015		311,705		$	9.69			$	681,861
	Issued		—			—
	Exercised		(12,540	)		7.39
	Forfeited		(2,810	)		12.29
	Expired		—			—
	Outstanding, March 31, 2015		296,355		$	9.76		4.01	$	585,356
	Options exercisable at
	March 31, 2015		264,855		$	9.79		3.52	$	519,867
Summary of Company's Restricted Stock	Information regarding the Company’s restricted stock (all unvested) and changes during the three months ended March 31, 2015 is as follows:
		Number of			Weighted
		shares			average
					price
	Outstanding, January 1, 2015		160,284		$	9.21
	Granted		—			—
	Vested		(86,470	)		9.11
	Forfeited		(88	)		9.39
	Outstanding, March 31, 2015		73,726		$	9.32
	Information regarding the Company’s RSUs (all unvested) and changes during the three months ended March 31, 2015 is as follows:
		Number of			Weighted
		shares			average
					price
	Outstanding, January 1, 2015		98,535		$	10.64
	Granted		120,509			11.01
	Vested		(25,566	)		11.02
	Forfeited		(415	)		10.71
	Outstanding, March 31, 2015		193,063		$	10.82

Comprehensive_Income_Tables

Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Components of Other Comprehensive Income	The components of other comprehensive income are as follows:
	For the quarter ended:		Before		March 31, 2015			Net of		Before			March 31, 2014			Net of
			tax amount		Tax Benefit			tax amount		tax amount			Tax Benefit			tax amount
					(Expense)								(Expense)
			(in thousands)							(in thousands)
	Net unrealized gains on available for sale securities
	Net unrealized holding gains arising during period		$	4,225	($	1,550	)	$	2,675	$	4,715		($	1,727	)	$	2,988
	Reclassification adjustment for net gains arising during the period			—		—			—		(3	)		1			(2	)
	Net unrealized gains		$	4,225	($	1,550	)	$	2,675	$	4,712		($	1,726	)	$	2,986
	Change in minimum pension liability			8		(3	)		5		8			(3	)		5
	Other comprehensive income, net		$	4,233	($	1,553	)	$	2,680	$	4,720		($	1,729	)	$	2,991
Summary of Changes in Accumulated Other Comprehensive Income	The following table shows the changes in the balances of each of the components of other comprehensive income for the periods presented:
	Changes in Accumulated Other Comprehensive Income by Component (a)
			For the Three Months Ended							For the Three Months Ended
			March 31, 2015							March 31, 2014
			Unrealized							Unrealized Gains
			Gains on							(Losses) on
			Available-for-sale							Available-for-sale
			Securities		Pension Items			Total		Securities			Pension Items			Total
			(in thousands)
	Beginning Balance		$	1,531	($	8	)	$	1,523	($	4,647	)	($	28	)	($	4,675	)
	Other comprehensive income before classifications			2,675		5			2,680		2,988			5			2,993
	Amounts reclassified from accumulated other comprehensive income			—		—			—		(2	)		—			(2	)
	Net current period other comprehensive income			2,675		5			2,680		2,986			5			2,991
	Ending balance		$	4,206	($	3	)	$	4,203	($	1,661	)	($	23	)	($	1,684	)
	(a)	All amounts are net of tax.

Statement_of_Cash_Flow_Informa1

Statement of Cash Flow Information, Supplemental Information (Tables)	3 Months Ended
	Mar. 31, 2015
Supplemental Cash Flow Elements [Abstract]
Supplemental Schedule of Noncash Investing and Financing Activities
		For the Three Months Ended
		March 31,
		2015		2014
		(in thousands)
	Supplemental schedule of noncash investing and financing activities:
	Cash paid during the period for income taxes	$	4,706	$	3,500
	Cash paid during the period for interest		2,403		2,095
	Transfer of loans and leases into other repossessed assets and other real estate owned		266		266

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following schedule shows the Company’s earnings per share for the periods presented:
			For the Three Months Ended
			March 31,
	(In thousands, except per share data)		2015		2014
	Net income available to common shareholders		$	8,330	$	7,163
	Less: earnings allocated to participating securities			50		36
	Net income allocated to common shareholders		$	8,280	$	7,127
	Weighted average number of common shares outstanding—basic (1)			37,800		37,683
	Share-based plans (1)			137		123
	Weighted average number of common shares— diluted (1)			37,937		37,806
	Basic earnings per share		$	0.22	$	0.19
	Diluted earnings per share		$	0.22	$	0.19
	-1	Adjusted for 5% stock dividend distributed June 17, 2014 to shareholders of record on June 3, 2014 .

Investment_Securities_Tables

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Reconciliation of Available-for-Sale Securities	AVAILABLE FOR SALE	March 31, 2015									December 31, 2014
		Amortized		Gross		Gross			Fair Value		Amortized		Gross		Gross			Fair Value
		Cost		Unrealized		Unrealized					Cost		Unrealized		Unrealized
				Gains		Losses							Gains		Losses
		(in thousands)									(in thousands)
	U.S. treasury and U.S. government agencies	$	105,797	$	897	$	(119	)	$	106,575	$	94,466	$	261	$	(807	)	$	93,920
	Mortgage-backed securities, residential		308,784		4,114		(1,030	)		311,868		309,162		2,868		(2,075	)		309,955
	Mortgage-backed securities, multifamily		4,974		92		—			5,066		4,973		3		—			4,976
	Obligations of states and political subdivisions		30,518		963		(107	)		31,374		29,764		888		(133	)		30,519
	Other debt securities		495		9		—			504		494		11		—			505
	Equity securities		16,265		2,002		(202	)		18,065		16,196		1,589		(211	)		17,574
		$	466,833	$	8,077	$	(1,458	)	$	473,452	$	455,055	$	5,620	$	(3,226	)	$	457,449
Reconciliation of Held-to-Maturity Securities	HELD TO MATURITY	31-Mar-15									31-Dec-14
		Amortized		Gross		Gross			Fair Value		Amortized		Gross		Gross			Fair Value
		Cost		Unrealized		Unrealized					Cost		Unrealized		Unrealized
				Gains		Losses							Gains		Losses
		(in thousands)									(in thousands)
	U.S. government agencies	$	25,550	$	498	$	(10	)	$	26,038	$	20,477	$	232	$	(84	)	$	20,625
	Mortgage-backed securities, residential		40,673		806		(125	)		41,354		42,309		645		(385	)		42,569
	Mortgage-backed securities, multifamily		2,233		—		(26	)		2,207		2,259		—		(60	)		2,199
	Obligations of states and political subdivisions		45,795		755		(92	)		46,458		41,401		658		(90	)		41,969
	Other debt securities		1,528		132		—			1,660		1,530		138		—			1,668
		$	115,779	$	2,191	$	(253	)	$	117,717	$	107,976	$	1,673	$	(619	)	$	109,030
Summary of Contractual Maturities of Investment Securities Classified as Available for Sale and Held to Maturity	The following table shows investment securities by stated maturity. Securities backed by mortgages have expected maturities that differ from contractual maturities because borrowers have the right to call or prepay, and are, therefore, classified separately with no specific maturity date (in thousands):
		March 31, 2015
		Available for Sale				Held to Maturity
		Amortized		Fair Value		Amortized			Fair Value
		Cost				Cost
	Due in one year or less	$	1,966	$	1,992	$	7,922		$	7,951
	Due after one year through five years		86,033		86,940		12,574			12,994
	Due after five years through ten years		47,429		48,154		45,746			46,541
	Due after ten years		1,382		1,367		6,631			6,670
			136,810		138,453		72,873			74,156
	Mortgage-backed securities		313,758		316,934		42,906			43,561
	Equity securities		16,265		18,065		—			—
	Total securities	$	466,833	$	473,452	$	115,779		$	117,717
Reconciliation of Available-for-Sale and Held-to-Maturity Securities in Continuous Unrealized Loss Position	The following table indicates the length of time individual securities have been in a continuous unrealized loss position at March 31, 2015 and December 31, 2014:
	March 31, 2015	Less than 12 months				12 months or longer					Total
				Unrealized					Unrealized		Number of				Unrealized
	AVAILABLE FOR SALE	Fair value		Losses		Fair value			Losses		securities		Fair value		Losses
						(dollars in thousands)
	U.S. government agencies	$	33,157	$	101	$	3,982		$	18		7	$	37,139	$	119
	Mortgage-backed securities, residential		25,926		147		57,757			883		20		83,683		1,030
	Obligations of states and political subdivisions		4,123		52		1,481			55		11		5,604		107
	Equity securities		—		—		4,866			202		2		4,866		202
		$	63,206	$	300	$	68,086		$	1,158		40	$	131,292	$	1,458
	HELD TO MATURITY
	U.S. government agencies	$	5,776	$	10	$	—		$	—		1	$	5,776	$	10
	Mortgage-backed securities, residential		2,579		3		7,797			122		4		10,376		125
	Mortgage-backed securities, multifamily		1,282		4		925			22		2		2,207		26
	Obligations of states and political subdivisions		8,928		56		1,619			36		12		10,547		92
		$	18,565	$	73	$	10,341		$	180		19	$	28,906	$	253
	December 31, 2014	Less than 12 months				12 months or longer					Total
				Unrealized					Unrealized		Number of				Unrealized
	AVAILABLE FOR SALE	Fair value		Losses		Fair value			Losses		securities		Fair value		Losses
						(dollars in thousands)
	U.S. government agencies	$	5,057	$	28	$	46,135		$	779		11	$	51,192	$	807
	Mortgage-backed securities, residential		34,832		177		74,414			1,898		28		109,246		2,075
	Obligations of states and political subdivisions		1,266		29		5,033			104		12		6,299		133
	Equity securities		—		—		4,819			211		2		4,819		211
		$	41,155	$	234	$	130,401		$	2,992		53	$	171,556	$	3,226
	HELD TO MATURITY
	U.S. government agencies	$	—	$	—	$	5,736		$	84		1	$	5,736	$	84
	Mortgage-backed securities, residential		6,236		50		17,557			335		8		23,793		385
	Mortgage-backed securities, multifamily		—		—		2,199			60		2		2,199		60
	Obligations of states and political subdivisions		1,290		7		4,206			83		13		5,496		90
		$	7,526	$	57	$	29,698		$	562		24	$	37,224	$	619

Loans_Leases_and_Other_Real_Es1

Loans, Leases and Other Real Estate (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Composition of Lakeland`s Loan and Lease Portfolio	The following sets forth the composition of Lakeland’s loan and lease portfolio as of March 31, 2015 and December 31, 2014:
			March 31,			December 31,
			2015			2014
			(in thousands)
	Commercial, secured by real estate		$	1,562,898		$	1,529,761
	Commercial, industrial and other			244,162			238,252
	Leases			54,271			54,749
	Real estate-residential mortgage			426,339			431,190
	Real estate-construction			73,230			64,020
	Home equity and consumer			330,805			337,642
	Total loans			2,691,705			2,655,614
	Less: deferred fees			(1,909	)		(1,788	)
	Loans, net of deferred fees		$	2,689,796		$	2,653,826
Company's Non-Performing Assets and its Accruing Troubled Debt Restructurings	The following schedule sets forth certain information regarding the Company’s non-performing assets and its accruing troubled debt restructurings:
	(in thousands)		March 31,			December 31,
			2015			2014
	Commercial, secured by real estate		$	6,825		$	7,424
	Commercial, industrial and other			285			308
	Leases			111			88
	Real estate - residential mortgage			9,552			9,246
	Real estate - construction			169			188
	Home equity and consumer			3,472			3,415
	Total non-accrual loans and leases		$	20,414		$	20,669
	Other real estate and other repossessed assets			826			1,026
	TOTAL NON-PERFORMING ASSETS		$	21,240		$	21,695
	Troubled debt restructurings, still accruing		$	11,538		$	10,579
Age Analysis of Past Due Loans, Segregated by Class of Loans	An age analysis of past due loans, segregated by class of loans as of March 31, 2015 and December 31, 2014, is as follows:
	March 31, 2015		30-59			60-89			Greater			Total Past			Current			Total Loans			Recorded
			Days			Days			Than 89			Due						and Leases			Investment greater
			Past Due			Past Due			Days												than 89 Days and
																					still accruing
			(in thousands)
	Commercial, secured by real estate		$	5,810		$	1,915		$	5,860		$	13,585		$	1,549,313		$	1,562,898		$	—
	Commercial, industrial and other			623			905			11			1,539			242,623			244,162			—
	Leases			253			33			111			397			53,874			54,271			—
	Real estate—residential mortgage			1,482			118			8,495			10,095			416,244			426,339			—
	Real estate—construction			—			—			168			168			73,062			73,230			—
	Home equity and consumer			1,558			343			2,756			4,657			326,148			330,805			134
			$	9,726		$	3,314		$	17,401		$	30,441		$	2,661,264		$	2,691,705		$	134
	December 31, 2014
	Commercial, secured by real estate		$	2,714		$	2,999		$	5,972		$	11,685		$	1,518,076		$	1,529,761		$	—
	Commercial, industrial and other			944			2			308			1,254			236,998			238,252			—
	Leases			108			24			88			220			54,529			54,749			—
	Real estate—residential mortgage			3,325			354			6,710			10,389			420,801			431,190			—
	Real estate—construction			224			—			188			412			63,608			64,020			—
	Home equity and consumer			1,583			598			2,951			5,132			332,510			337,642			66
			$	8,898		$	3,977		$	16,217		$	29,092		$	2,626,522		$	2,655,614		$	66
Impaired Loans with and without Specific Allowances	Impaired loans as of March 31, 2015, March 31, 2014 and December 31, 2014 are as follows:
	March 31, 2015		Recorded			Contractual			Specific			Interest			Average
			Investment in			Unpaid			Allowance			Income			Investment in
			Impaired loans			Principal						Recognized			Impaired loans
						Balance
			(in thousands)
	Loans without specific allowance:
	Commercial, secured by real estate		$	12,802		$	15,058		$	—		$	99		$	13,177
	Commercial, industrial and other			1,177			1,281			—			3			233
	Leases			—			—			—			—			—
	Real estate-residential mortgage			2,160			2,160			—			4			2,162
	Real estate-construction			169			169			—			—			178
	Home equity and consumer			765			765			—			—			741
	Loans with specific allowance:
	Commercial, secured by real estate			5,563			5,695			351			58			5,449
	Commercial, industrial and other			684			1,191			5			5			695
	Leases			14			14			14			—			—
	Real estate-residential mortgage			753			753			72			9			753
	Real estate-construction			394			394			2			1			92
	Home equity and consumer			1,331			1,331			1,014			16			1,243
	Total:
	Commercial, secured by real estate		$	18,365		$	20,753		$	351		$	157		$	18,626
	Commercial, industrial and other			1,861			2,472			5			8			928
	Leases			14			14			14			—			—
	Real estate—residential mortgage			2,913			2,913			72			13			2,915
	Real estate-construction			563			563			2			1			270
	Home equity and consumer			2,096			2,096			1,014			16			1,984
			$	25,812		$	28,811		$	1,458		$	195		$	24,723
	March 31, 2014		Recorded			Contractual			Specific			Interest			Average
			Investment in			Unpaid			Allowance			Income			Investment in
			Impaired loans			Principal						Recognized			Impaired loans
						Balance
			(in thousands)
	Loans without specific allowance:
	Commercial, secured by real estate		$	10,044		$	10,137		$	—		$	56		$	9,026
	Commercial, industrial and other			46			147			—			42			3,652
	Real estate-residential mortgage			567			567			—			—			592
	Real estate-construction			495			2,411			—			—			498
	Home equity and consumer			263			263			—			4			263
	Loans with specific allowance:
	Commercial, secured by real estate			11,891			12,918			1,005			88			10,740
	Commercial, industrial and other			153			153			68			2			153
	Real estate-residential mortgage			—			—			—			—			—
	Real estate-construction			—			—			—			—			—
	Home equity and consumer			1,259			1,259			189			10			928
	Total:
	Commercial, secured by real estate		$	21,935		$	23,055		$	1,005		$	144		$	19,766
	Commercial, industrial and other			199			300			68			44			3,805
	Real estate—residential mortgage			567			567			—			—			592
	Real estate-construction			495			2,411			—			—			498
	Home equity and consumer			1,522			1,522			189			14			1,191
			$	24,718		$	27,855		$	1,262		$	202		$	25,852
	December 31, 2014		Recorded			Contractual			Specific			Interest			Average
			Investment in			Unpaid			Allowance			Income			Investment in
			Impaired loans			Principal						Recognized			Impaired loans
						Balance
			(in thousands)
	Loans without specific allowance:
	Commercial, secured by real estate		$	14,172		$	15,520		$	—		$	436		$	16,092
	Commercial, industrial and other			327			1,697			—			43			1,513
	Real estate-residential mortgage			1,681			1,681			—			—			308
	Real estate-construction			188			552			—			—			464
	Home equity and consumer			741			741			—			7			153
	Loans with specific allowance:
Commercial, secured by real estate			5,666			5,818			634			156			3,858
Commercial, industrial and other			425			425			10			9			342
Real estate-residential mortgage			1,238			1,238			217			19			438
Real estate-construction			—			—			—			—			—
Home equity and consumer			1,255			1,255			1,031			41			975
Total:
Commercial, secured by real estate		$	19,838		$	21,338		$	634		$	592		$	19,950
Commercial, industrial and other			752			2,122			10			52			1,855
Real estate—residential mortgage			2,919			2,919			217			19			746
Real estate-construction			188			552			—			—			464
Home equity and consumer			1,996			1,996			1,031			48			1,128
		$	25,693		$	28,927		$	1,892		$	711		$	24,143
Company's Commercial Loan Portfolio	The following table shows the Company’s commercial loan portfolio as of March 31, 2015 and December 31, 2014, by the risk ratings discussed above (in thousands):
	March 31, 2015		Commercial,			Commercial,
			secured by			industrial			Real estate-
	Risk Rating		real estate			and other			construction
	1		$	—		$	1,477		$	—
	2			—			9,789			—
	3			67,404			52,503			—
	4			501,876			76,275			10,643
	5			868,916			66,169			55,002
	5W - Watch			56,925			18,858			3,003
	6 - Other Assets Especially Mentioned			27,210			4,141			3,101
	7 - Substandard			40,567			14,950			1,481
	8 - Doubtful			—			—			—
	9 - Loss			—			—			—
	Total		$	1,562,898		$	244,162		$	73,230
	December 31, 2014		Commercial,			Commercial,
			secured by			industrial			Real estate-
	Risk Rating		real estate			and other			construction
	1		$	—		$	1,040		$	—
	2			—			8,755			—
	3			69,243			30,386			—
	4			479,667			91,836			7,527
	5			867,023			69,723			51,833
	5W - Watch			40,991			15,572			225
	6 - Other Assets Especially Mentioned			27,764			8,057			2,710
	7 - Substandard			45,073			12,883			1,725
	8 - Doubtful			—			—			—
	9 - Loss			—			—			—
	Total		$	1,529,761		$	238,252		$	64,020
Allowance for Loan and Lease Losses by Portfolio Segment	The following table details activity in the allowance for loan and lease losses by portfolio segment for the three months ended March 31, 2015 and 2014:
	Three Months Ended March 31, 2015		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
	Allowance for Loan and Lease Losses:		secured by			industrial						residential			construction			equity and
			real estate			and other						mortgage						consumer
			(in thousands)
	Beginning Balance		$	13,577		$	3,196		$	582		$	4,020		$	553		$	6,333		$	2,423	$	30,684
	Charge-offs			(546	)		(10	)		(427	)		(17	)		(20	)		(261	)		—		(1,281	)
	Recoveries			39			42			20			1			100			30			—		232
	Provision			(510	)		79			863			(706	)		4			822			318		870
	Ending Balance		$	12,560		$	3,307		$	1,038		$	3,298		$	637		$	6,924		$	2,741	$	30,505
	Three Months Ended March 31, 2014		Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
	Allowance for Loan and Lease Losses:		secured by			industrial						residential			construction			equity and
			real estate			and other						mortgage						consumer
			(in thousands)
	Beginning Balance		$	14,463		$	5,331		$	504		$	3,214		$	542		$	2,737		$	3,030	$	29,821
	Charge-offs			(1,647	)		(13	)		(39	)		(155	)		—			(601	)		—		(2,455	)
	Recoveries			34			591			—			6			—			34			—		665
	Provision			1,285			(403	)		(5	)		(97	)		(59	)		442			326		1,489
	Ending Balance		$	14,135		$	5,506		$	460		$	2,968		$	483		$	2,612		$	3,356	$	29,520
Loans Receivable Summarized by Portfolio Segment and Impairment Method	Loans receivable summarized by portfolio segment and impairment method are as follows:
			Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Total
			secured by			industrial						residential			construction			equity and
			real estate			and other						mortgage						consumer
			(in thousands)
	At March 31, 2015
	Ending Balance: Individually evaluated for impairment		$	18,365		$	1,861		$	14		$	2,913		$	563		$	2,096		$	25,812
	Ending Balance: Collectively evaluated for impairment			1,544,533			242,301			54,257			423,426			72,667			328,709		$	2,665,893
	Ending Balance (1)		$	1,562,898		$	244,162		$	54,271		$	426,339		$	73,230		$	330,805		$	2,691,705
	-1	Excludes deferred fees
			Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Total
			secured by			industrial						residential			construction			equity and
			real estate			and other						mortgage						consumer
			(in thousands)
	At December 31, 2014
	Ending Balance: Individually evaluated for impairment		$	19,838		$	752		$	—		$	2,919		$	188		$	1,996		$	25,693
	Ending Balance: Collectively evaluated for impairment			1,509,923			237,500			54,749			428,271			63,832			335,646		$	2,629,921
	Ending Balance(1)		$	1,529,761		$	238,252		$	54,749		$	431,190		$	64,020		$	337,642		$	2,655,614
	-1	Excludes deferred fees
Allowance for Loan Losses Summarized by Portfolio Segment and Impairment Classification	The allowance for loan and lease losses is summarized by portfolio segment and impairment classification as follows:
			Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
			secured by			industrial						residential			construction			equity and
			real estate			and other						mortgage						consumer
	At March 31, 2015		(in thousands)
	Ending Balance: Individually evaluated for impairment		$	351		$	5		$	14		$	72		$	2		$	1,014		$	—	$	1,458
	Ending Balance: Collectively evaluated for impairment			12,209			3,302			1,024			3,226			635			5,910			2,741	$	29,047
	Ending Balance		$	12,560		$	3,307		$	1,038		$	3,298		$	637		$	6,924		$	2,741	$	30,505
			Commercial,			Commercial,			Leases			Real estate-			Real estate-			Home			Unallocated		Total
			secured by			industrial						residential			construction			equity and
			real estate			and other						mortgage						consumer
	At December 31, 2014		(in thousands)
	Ending Balance: Individually evaluated for impairment		$	634		$	10		$	—		$	217		$	—		$	1,031		$	—	$	1,892
	Ending Balance: Collectively evaluated for impairment			12,943			3,186			582			3,803			553			5,302			2,423	$	28,792
	Ending Balance		$	13,577		$	3,196		$	582		$	4,020		$	553		$	6,333		$	2,423	$	30,684
Summary of Restructured Loans	The following table summarizes loans that have been restructured during the three months ended March 31, 2015 and 2014:
			For the Three Months Ended									For the Three Months Ended
			March 31, 2015									March 31, 2014
						Pre-			Post-						Pre-			Post-
						Modification			Modification						Modification			Modification
						Outstanding			Outstanding						Outstanding			Outstanding
			Number of			Recorded			Recorded			Number of			Recorded			Recorded
			Contracts			Investment			Investment			Contracts			Investment			Investment
			(Dollars in thousands)									(Dollars in thousands)
	Troubled Debt Restructurings:
	Commercial, secured by real estate			—		$	—		$	—			—		$	—		$	—
	Commercial, industrial and other			1			1,149			1,149			—			—			—
	Leases			1			14			14			—			—			—
	Real estate—residential mortgage			—			—			—			—			—			—
	Real estate—construction			1			396			396			—			—			—
	Home equity and consumer			1			9			9			3			335			335
				4		$	1,568		$	1,568			3		$	335		$	335
Summary of Restructured Debt within Previous 12 Months that have Subsequently Defaulted	The following table summarizes as of March 31, 2015 and 2014, loans that were restructured within the previous 12 months that have subsequently defaulted:
			For the Three Months Ended
			March 31, 2015						March 31, 2014
			Number of			Recorded			Number of			Recorded
			Contracts			Investment			Contracts			Investment
			(Dollars in thousands)						(Dollars in thousands)
	Defaulted Troubled Debt Restructurings:
	Commercial, secured by real estate			—		$	—			2		$	214
	Commercial, industrial and other			—			—			—			—
	Leases			—			—			—			—
	Real estate—residential mortgage			1			483			—			—
	Real estate—construction			—			—			—			—
	Home equity and consumer			1			2			1			236
				2		$	485			3		$	450

Estimated_Fair_Value_of_Financ1

Estimated Fair Value of Financial Instruments and Fair Value Measurement (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis	Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:
		Quoted Prices in		Significant		Significant		Total
		Active Markets		Other		Unobservable		Fair Value
		for Identical		Observable		Inputs
		Assets		Inputs		(Level 3)
		(Level 1)		(Level 2)
		(in thousands)
	March 31, 2015
	Assets:
	Investment securities, available for sale
	U.S. treasury and government agencies	$	8,425	$	98,150	$	—	$	106,575
	Mortgage backed securities		—		316,934		—		316,934
	Obligations of states and political subdivisions		—		31,374		—		31,374
	Corporate debt securities		—		504		—		504
	Equity securities		4,508		13,557		—		18,065
	Total securities available for sale		12,933		460,519		—		473,452
	Non-hedging interest rate derivatives		—		209		—		209
	Total Assets	$	12,933		460,728		—	$	473,661
	Non-hedging interest rate derivatives	$	—	$	209	$	—	$	209
	Total Liabilities	$	—	$	209	$	—	$	209
	December 31, 2014
	Assets:
	Investment securities, available for sale
	U.S. treasury and government agencies	$	8,321	$	85,599	$	—	$	93,920
	Mortgage backed securities		—		314,931		—		314,931
	Obligations of states and political subdivisions		—		30,519		—		30,519
	Corporate debt securities		—		505		—		505
	Equity securities		4,154		13,420		—		17,574
	Total securities available for sale		12,475		444,974		—		457,449
	Non-hedging interest rate derivatives		—		37		—		37
	Total Assets	$	12,475	$	445,011	$	—	$	457,486
	Non-hedging interest rate derivatives	$	—	$	37	$	—	$	37
	Total Liabilities	$	—	$	37	$	—	$	37
Fair Value of Financial Assets Measured on a Nonrecurring Basis	The following table sets forth the Company’s assets subject to fair value adjustments (impairment) on a nonrecurring basis. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:
		Quoted Prices in		Significant		Significant		Total
		Active Markets		Other		Unobservable		Fair Value
		for Identical		Observable		Inputs
		Assets		Inputs		(Level 3)
		(Level 1)		(Level 2)
		(in thousands)
	March 31, 2015
	Assets:
	Impaired Loans and Leases	$	—	$	—	$	25,812	$	25,812
	Loans held for sale		—		1,598		—		1,598
	Other real estate owned and other repossessed assets		—		—		826		826
	December 31, 2014
	Assets:
	Impaired Loans and Leases	$	—	$	—	$	25,693	$	25,693
	Loans held for sale		—		592		—		592
	Other real estate owned and other repossessed assets		—		—		1,026		1,026
Carrying Values and Fair Values of Company's Financial Instruments	The following table presents the carrying values, fair values and placement in the fair value hierarchy of the Company’s financial instruments as of March 31, 2015 and December 31, 2014:
		Carrying		Fair		Quoted Prices in		Significant		Significant
		Value		Value		Active Markets		Other		Unobservable
						for Identical		Observable		Inputs
						Assets		Inputs		(Level 3)
						(Level 1)		(Level 2)
		(in thousands)
	March 31, 2015
	Financial Instruments—Assets
	Investment securities held to maturity	$	115,779	$	117,717	$	—	$	112,542	$	5,175
	Federal Home Loan Bank and other membership bank stocks		10,755		10,755		—		10,755		—
	Loans and leases, net		2,659,291		2,665,726		—		—		2,665,726
	Financial Instruments—Liabilities
	Certificates of Deposit		291,703		291,627		—		291,627		—
	Other borrowings		222,728		228,388		—		228,388		—
	Subordinated debentures		41,238		30,929		—		—		30,929
	December 31, 2014
	Financial Instruments—Assets
	Investment securities held to maturity	$	107,976	$	109,030	$	—	$	103,916	$	5,114
	Federal Home Loan Bank and other membership bank stocks		9,846		9,846		—		9,846		—
	Loans and leases, net		2,623,142		2,624,581		—		—		2,624,581
	Financial Instruments—Liabilities
	Certificates of Deposit		279,962		279,439		—		279,439		—
	Other borrowings		202,498		205,343		—		205,343		—
	Subordinated debentures		41,238		30,929		—		—		30,929

Derivatives_Tables

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary Information Regarding Derivatives	The following table presents summary information regarding these derivatives for the periods presented (dollars in thousands):
	March 31, 2015	Notional			Average		Weighted Average			Weighted Average		Fair Value
		Amount			Maturity (Years)		Rate Fixed			Variable Rate
	Customer interest rate swaps	$	(17,176	)		5.5		3.84	%		1 Mo Libor + 2.21	$	209
	3rd Party interest rate swaps		17,176			5.5		3.84	%		1 Mo Libor + 2.21		(209	)
	December 31, 2014	Notional			Average		Weighted Average			Weighted Average		Fair Value
		Amount			Maturity (Years)		Rate Fixed			Variable Rate
	Customer interest rate swaps	$	(17,279	)		5.7		3.84	%		1 Mo Libor + 2.21	$	37
	3rd party interest rate swaps		17,279			5.7		3.84	%		1 Mo Libor + 2.21		($37	)

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Estimated Future Amortization Expense	The estimated future amortization expense for each of the succeeding five years ended December 31 is as follows (dollars in thousands):
	For the year ended:
	2015	$	304
	2016		366
	2017		316
	2018		267
	2019		218

Significant_Accounting_Policie2

Significant Accounting Policies - Additional Information (Detail)	0 Months Ended		3 Months Ended
	Jun. 17, 2014	21-May-14	Mar. 31, 2015
Regulatory Assets [Abstract]
Percentage of common stock dividend distributed	5.00%	5.00%
Common stock dividend, authorization date			21-May-14
Common stock dividend, distribution date			17-Jun-14
Common stock dividend, record date			3-Jun-14

ShareBased_Compensation_Additi

Share-Based Compensation - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		567,000	$248,000
Stock options granted		0
Aggregate intrinsic value of options exercised		50,000	38,000
Cash receipts due to exercise of stock options		93,000	79,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	75,000		75,000
Unrecognized compensation expense, period of recognition	2 years 2 months 12 days
Stock options granted		0	0
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	1,600,000		1,600,000
Unrecognized compensation expense, period of recognition	2 years
Granted, Number of shares		120,509
Granted, Weighted average price		11.01
RSUs [Member] | 2009 Equity Compensation Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		442,000	447,000
Vesting period		3 years	3 years
Granted, Number of shares		120,509	125,697
Granted, Weighted average price		11.01	$10.66
RSUs [Member] | Minimum [Member] | 2009 Equity Compensation Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		2 years
RSUs [Member] | Maximum [Member] | 2009 Equity Compensation Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost		569,000
Unrecognized compensation expense, period of recognition		2 years 3 months 18 days
Restricted Stock [Member] | 2009 Equity Compensation Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			$4,000
Stock options granted			1,942
Granted restricted stock, fair value			$11.21
Vesting period			5 years

ShareBased_Compensation_Option

Share-Based Compensation - Option Activity under the Company's Stock Option Plans (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding, Number of shares, Beginning balance	311,705
Issued, Number of shares	0
Exercised, Number of shares	-12,540
Forfeited, Number of shares	-2,810
Expired, Number of shares	0
Outstanding, Number of shares, Ending balance	296,355
Options exercisable, Number of shares, Ending balance	264,855
Outstanding, Weighted average exercise price, Beginning balance	$9.69
Issued, Weighted average exercise price	$0
Exercised, Weighted average exercise price	$7.39
Forfeited, Weighted average exercise price	$12.29
Expired, Weighted average exercise price	$0
Outstanding, Weighted average exercise price, Ending balance	$9.76
Options exercisable, Weighted average exercise price, Ending balance	$9.79
Outstanding, Weighted average remaining contractual term (in years), Ending balance	4 years 4 days
Options exercisable, Weighted average remaining contractual term (in years), Ending balance	3 years 6 months 7 days
Outstanding, Aggregate intrinsic value, Beginning balance	$681,861
Outstanding, Aggregate intrinsic value, Ending balance	585,356
Options exercisable, Aggregate intrinsic value, Ending balance	$519,867

ShareBased_Compensation_Summar

Share-Based Compensation - Summary of Company's Restricted Stock (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of shares, Beginning balance	160,284
Vested, Number of shares	-86,470
Forfeited, Number of shares	-88
Outstanding, Number of shares, Ending balance	73,726
Outstanding, Weighted average price, Beginning balance	$9.21
Vested, Weighted average price	$9.11
Forfeited, Weighted average price	$9.39
Outstanding, Weighted average price, Ending balance	$9.32
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of shares, Beginning balance	98,535
Granted, Number of shares	120,509
Vested, Number of shares	-25,566
Forfeited, Number of shares	-415
Outstanding, Number of shares, Ending balance	193,063
Outstanding, Weighted average price, Beginning balance	$10.64
Granted, Weighted average price	$11.01
Vested, Weighted average price	$11.02
Forfeited, Weighted average price	$10.71
Outstanding, Weighted average price, Ending balance	$10.82

Comprehensive_Income_Component

Comprehensive Income - Components of Other Comprehensive Income (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net unrealized gains on available for sale securities
Net unrealized holding gains arising during period, Before tax amount	$4,225	$4,715
Reclassification adjustment for net gains arising during the period, Before tax amount		-3
Net unrealized gains, Before tax amount	4,225	4,712
Change in minimum pension liability, Before tax amount	8	8
Other comprehensive income, net, Before tax amount	4,233	4,720
Net unrealized holding gains arising during period, Tax Benefit (Expense)	-1,550	-1,727
Reclassification adjustment for net gains arising during the period, Tax Benefit (Expense)		1
Net unrealized gains, Tax Benefit (Expense)	-1,550	-1,726
Change in minimum pension liability, Tax Benefit (Expense)	-3	-3
Other comprehensive income, net, Tax Benefit (Expense)	-1,553	-1,729
Net unrealized holding gains arising during period, Net of tax amount	2,675	2,988
Reclassification adjustment for net gains arising during the period, Net of tax amount		-2
Net unrealized gains, Net of tax amount	2,675	2,986
Change in minimum pension liability, Net of tax amount	5	5
Other Comprehensive Income	$2,680	$2,991

Comprehensive_Income_Summary_o

Comprehensive Income - Summary of Changes in Accumulated Other Comprehensive Income (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$1,523	($4,675)
Other comprehensive income before classifications	2,680	2,993
Amounts reclassified from accumulated other comprehensive income		-2
Other Comprehensive Income	2,680	2,991
Ending balance	4,203	-1,684
Unrealized Gains (Losses) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	1,531	-4,647
Other comprehensive income before classifications	2,675	2,988
Amounts reclassified from accumulated other comprehensive income		-2
Other Comprehensive Income	2,675	2,986
Ending balance	4,206	-1,661
Pension Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	-8	-28
Other comprehensive income before classifications	5	5
Other Comprehensive Income	5	5
Ending balance	($3)	($23)

Statement_of_Cash_Flow_Informa2

Statement of Cash Flow Information, Supplemental Information - Supplemental Schedule of Noncash Investing and Financing Activities (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Supplemental schedule of noncash investing and financing activities:
Cash paid during the period for income taxes	$4,706	$3,500
Cash paid during the period for interest	2,403	2,095
Transfer of loans and leases into other repossessed assets and other real estate owned	$266	$266

Earnings_Per_Share_Computation

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net income available to common shareholders, Income	$8,330	$7,163
Less: earnings allocated to participating securities, Income	50	36
Net income allocated to common shareholders	$8,280	$7,127
Weighted average number of common shares outstanding-basic	37,800	37,683
Share-based plans	137	123
Weighted average number of common shares-diluted	37,937	37,806
Basic earnings per share	$0.22	$0.19
Diluted earnings per share	$0.22	$0.19

Earnings_Per_Share_Computation1

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Parenthetical) (Detail)	0 Months Ended		3 Months Ended
	Jun. 17, 2014	21-May-14	Mar. 31, 2015
Earnings Per Share [Abstract]
Percentage of common stock dividend distributed	5.00%	5.00%
Common stock dividend, distribution date			17-Jun-14
Common stock dividend, record date			3-Jun-14

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail) (Common Stock [Member], USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options to purchase	113,023	357,163
Weighted average per share of restricted stock	$12.06	$11.90

Investment_Securities_Reconcil

Investment Securities - Reconciliation of Available-for-Sale Securities (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Total securities, Available for Sale, Amortized Cost	$466,833	$455,055
Gross Unrealized Gains	8,077	5,620
Gross Unrealized Losses	-1,458	-3,226
Total securities, Available for Sale, Fair Value	473,452	457,449
U.S. Treasury and U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities, Available for Sale, Amortized Cost	105,797	94,466
Gross Unrealized Gains	897	261
Gross Unrealized Losses	-119	-807
Total securities, Available for Sale, Fair Value	106,575	93,920
Mortgage-Backed Securities, Residential [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities, Available for Sale, Amortized Cost	308,784	309,162
Gross Unrealized Gains	4,114	2,868
Gross Unrealized Losses	-1,030	-2,075
Total securities, Available for Sale, Fair Value	311,868	309,955
Mortgage-Backed Securities, Multifamily [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities, Available for Sale, Amortized Cost	4,974	4,973
Gross Unrealized Gains	92	3
Total securities, Available for Sale, Fair Value	5,066	4,976
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities, Available for Sale, Amortized Cost	30,518	29,764
Gross Unrealized Gains	963	888
Gross Unrealized Losses	-107	-133
Total securities, Available for Sale, Fair Value	31,374	30,519
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities, Available for Sale, Amortized Cost	495	494
Gross Unrealized Gains	9	11
Total securities, Available for Sale, Fair Value	504	505
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities, Available for Sale, Amortized Cost	16,265	16,196
Gross Unrealized Gains	2,002	1,589
Gross Unrealized Losses	-202	-211
Total securities, Available for Sale, Fair Value	$18,065	$17,574

Investment_Securities_Reconcil1

Investment Securities - Reconciliation of Held-to-Maturity Securities (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$115,779	$107,976
Gross Unrealized Gains	2,191	1,673
Gross Unrealized Losses	-253	-619
Fair Value	117,717	109,030
U.S. Treasury and U.S. Government Agencies [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	25,550	20,477
Gross Unrealized Gains	498	232
Gross Unrealized Losses	-10	-84
Fair Value	26,038	20,625
Mortgage-Backed Securities, Residential [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	40,673	42,309
Gross Unrealized Gains	806	645
Gross Unrealized Losses	-125	-385
Fair Value	41,354	42,569
Mortgage-Backed Securities, Multifamily [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	2,233	2,259
Gross Unrealized Losses	-26	-60
Fair Value	2,207	2,199
Obligations of States and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	45,795	41,401
Gross Unrealized Gains	755	658
Gross Unrealized Losses	-92	-90
Fair Value	46,458	41,969
Other Debt Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	1,528	1,530
Gross Unrealized Gains	132	138
Fair Value	$1,660	$1,668

Investment_Securities_Summary_

Investment Securities - Summary of Contractual Maturities of Investment Securities Classified as Available for Sale and Held to Maturity (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Available for Sale, Amortized Cost
Due in one year or less	$1,966
Due after one year through five years	86,033
Due after five years through ten years	47,429
Due after ten years	1,382
Total	136,810
Total securities, Available for Sale, Amortized Cost	466,833	455,055
Available for Sale, Fair Value
Due in one year or less	1,992
Due after one year through five years	86,940
Due after five years through ten years	48,154
Due after ten years	1,367
Total	138,453
Total securities, Available for Sale, Fair Value	473,452	457,449
Held to Maturity, Amortized Cost
Due in one year or less	7,922
Due after one year through five years	12,574
Due after five years through ten years	45,746
Due after ten years	6,631
Total	72,873
Amortized Cost	115,779	107,976
Held to Maturity, Fair Value
Due in one year or less	7,951
Due after one year through five years	12,994
Due after five years through ten years	46,541
Due after ten years	6,670
Total	74,156
Total securities, Held to Maturity, Fair Value	117,717	109,030
Mortgage-Backed Securities, Residential [Member]
Available for Sale, Amortized Cost
Available for Sale, Amortized Cost	313,758
Total securities, Available for Sale, Amortized Cost	308,784	309,162
Available for Sale, Fair Value
Available for Sale, Fair Value	316,934
Total securities, Available for Sale, Fair Value	311,868	309,955
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost	42,906
Held to Maturity, Fair Value
Held to Maturity, Fair Value	43,561
Equity Securities [Member]
Available for Sale, Amortized Cost
Available for Sale, Amortized Cost	16,265
Total securities, Available for Sale, Amortized Cost	16,265	16,196
Available for Sale, Fair Value
Available for Sale, Fair Value	18,065
Total securities, Available for Sale, Fair Value	$18,065	$17,574

Investment_Securities_Addition

Investment Securities - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Mortgage backed securities sales	$0	$0
Securities, carrying value	380,600,000		356,100,000
Purchase price of equities	2,600,000
Market value of equities	4,500,000
Equity securities included in investment funds	13,500,000
Investment in community development loans	2,900,000
Redemption of funds	60 days
Investment in government guaranteed loans, mortgage-backed securities, small business loans	10,600,000
Amortized cost of securities	10,700,000
Fair value of securities	10,600,000
Unfunded commitments	$0

Investment_Securities_Reconcil2

Investment Securities - Reconciliation of Available-for-Sale and Held-to-Maturity Securities in Continuous Unrealized Loss Position (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
	Security	Security
Investment [Line Items]
Available for Sale, Less than 12 months, Fair value	$63,206	$41,155
Available for Sale, Less than 12 months, Unrealized Losses	300	234
Available for Sale, 12 months or longer, Fair value	68,086	130,401
Available for Sale, 12 months or longer, Unrealized Losses	1,158	2,992
Available for Sale, Number of securities	40	53
Available for Sale, Total, Fair value	131,292	171,556
Available for Sale, Total, Unrealized Losses	1,458	3,226
Held to Maturity, Less than 12 months, Fair value	18,565	7,526
Held to Maturity, Less than 12 months, Unrealized Losses	73	57
Held to Maturity, 12 months or longer, Fair value	10,341	29,698
Held to Maturity, 12 months or longer, Unrealized Losses	180	562
Held to Maturity, Number of securities	19	24
Held to Maturity, Total, Fair value	28,906	37,224
Held to Maturity, Total, Unrealized Losses	253	619
U.S. Treasury and U.S. Government Agencies [Member]
Investment [Line Items]
Available for Sale, Less than 12 months, Fair value	33,157	5,057
Available for Sale, Less than 12 months, Unrealized Losses	101	28
Available for Sale, 12 months or longer, Fair value	3,982	46,135
Available for Sale, 12 months or longer, Unrealized Losses	18	779
Available for Sale, Number of securities	7	11
Available for Sale, Total, Fair value	37,139	51,192
Available for Sale, Total, Unrealized Losses	119	807
Held to Maturity, Less than 12 months, Fair value	5,776
Held to Maturity, Less than 12 months, Unrealized Losses	10
Held to Maturity, 12 months or longer, Fair value		5,736
Held to Maturity, 12 months or longer, Unrealized Losses		84
Held to Maturity, Number of securities	1	1
Held to Maturity, Total, Fair value	5,776	5,736
Held to Maturity, Total, Unrealized Losses	10	84
Mortgage-Backed Securities, Residential [Member]
Investment [Line Items]
Available for Sale, Less than 12 months, Fair value	25,926	34,832
Available for Sale, Less than 12 months, Unrealized Losses	147	177
Available for Sale, 12 months or longer, Fair value	57,757	74,414
Available for Sale, 12 months or longer, Unrealized Losses	883	1,898
Available for Sale, Number of securities	20	28
Available for Sale, Total, Fair value	83,683	109,246
Available for Sale, Total, Unrealized Losses	1,030	2,075
Held to Maturity, Less than 12 months, Fair value	2,579	6,236
Held to Maturity, Less than 12 months, Unrealized Losses	3	50
Held to Maturity, 12 months or longer, Fair value	7,797	17,557
Held to Maturity, 12 months or longer, Unrealized Losses	122	335
Held to Maturity, Number of securities	4	8
Held to Maturity, Total, Fair value	10,376	23,793
Held to Maturity, Total, Unrealized Losses	125	385
Mortgage-Backed Securities, Multifamily [Member]
Investment [Line Items]
Held to Maturity, Less than 12 months, Fair value	1,282
Held to Maturity, Less than 12 months, Unrealized Losses	4
Held to Maturity, 12 months or longer, Fair value	925	2,199
Held to Maturity, 12 months or longer, Unrealized Losses	22	60
Held to Maturity, Number of securities	2	2
Held to Maturity, Total, Fair value	2,207	2,199
Held to Maturity, Total, Unrealized Losses	26	60
Obligations of States and Political Subdivisions [Member]
Investment [Line Items]
Available for Sale, Less than 12 months, Fair value	4,123	1,266
Available for Sale, Less than 12 months, Unrealized Losses	52	29
Available for Sale, 12 months or longer, Fair value	1,481	5,033
Available for Sale, 12 months or longer, Unrealized Losses	55	104
Available for Sale, Number of securities	11	12
Available for Sale, Total, Fair value	5,604	6,299
Available for Sale, Total, Unrealized Losses	107	133
Held to Maturity, Less than 12 months, Fair value	8,928	1,290
Held to Maturity, Less than 12 months, Unrealized Losses	56	7
Held to Maturity, 12 months or longer, Fair value	1,619	4,206
Held to Maturity, 12 months or longer, Unrealized Losses	36	83
Held to Maturity, Number of securities	12	13
Held to Maturity, Total, Fair value	10,547	5,496
Held to Maturity, Total, Unrealized Losses	92	90
Equity Securities [Member]
Investment [Line Items]
Available for Sale, 12 months or longer, Fair value	4,866	4,819
Available for Sale, 12 months or longer, Unrealized Losses	202	211
Available for Sale, Number of securities	2	2
Available for Sale, Total, Fair value	4,866	4,819
Available for Sale, Total, Unrealized Losses	$202	$211

Loans_Leases_and_Other_Real_Es2

Loans, Leases and Other Real Estate - Composition of Lakeland`s Loan and Lease Portfolio (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$2,691,705	$2,655,614
Less: deferred fees	-1,909	-1,788
Loans, net of deferred fees	2,689,796	2,653,826
Commercial, Secured by Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,562,898	1,529,761
Commercial, Industrial and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	244,162	238,252
Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	54,271	54,749
Real Estate-Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	426,339	431,190
Real Estate-Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	73,230	64,020
Home Equity and Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$330,805	$337,642

Loans_Leases_and_Other_Real_Es3

Loans, Leases and Other Real Estate - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential loans pledged for actual and potential borrowings at the Federal Home Loan Bank of New York	$380,700,000		$338,500,000
Troubled debt restructurings included in non accrual loans	2,000,000		1,300,000
Consumer mortgage loans that were in process of foreclosure	8,400,000
Interest accrued on impaired loans	420,000	410,000	1,800,000
Unfunded lending reserve	1,200,000		1,100,000
Mortgages held for sale	1,600,000		592,000
Other real estate owned	826,000		977,000
Other repossessed assets owned	0		49,000
Home Equity and Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Overdraft balances included in home equity and consumer loans	529,000		791,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Group of impaired loans with recorded investment	$500,000

Loans_Leases_and_Other_Real_Es4

Loans, Leases and Other Real Estate - Company's Non-Performing Assets and its Accruing Troubled Debt Restructurings (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-accrual loans and leases	$20,414	$20,669
Other real estate and other repossessed assets	826	1,026
TOTAL NON-PERFORMING ASSETS	21,240	21,695
Troubled debt restructurings, still accruing	11,538	10,579
Commercial, Secured by Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-accrual loans and leases	6,825	7,424
Commercial, Industrial and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-accrual loans and leases	285	308
Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-accrual loans and leases	111	88
Real Estate-Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-accrual loans and leases	9,552	9,246
Real Estate-Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-accrual loans and leases	169	188
Home Equity and Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-accrual loans and leases	$3,472	$3,415

Loans_Leases_and_Other_Real_Es5

Loans, Leases and Other Real Estate - Age Analysis of Past Due Loans, Segregated by Class of Loans (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$9,726	$8,898
60-89 Days Past Due	3,314	3,977
Greater Than 89 Days	17,401	16,217
Total Past Due	30,441	29,092
Current	2,661,264	2,626,522
Total Loans and Leases	2,691,705	2,655,614
Recorded Investment greater than 89 Days and still accruing	134	66
Commercial, Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	5,810	2,714
60-89 Days Past Due	1,915	2,999
Greater Than 89 Days	5,860	5,972
Total Past Due	13,585	11,685
Current	1,549,313	1,518,076
Total Loans and Leases	1,562,898	1,529,761
Commercial, Industrial and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	623	944
60-89 Days Past Due	905	2
Greater Than 89 Days	11	308
Total Past Due	1,539	1,254
Current	242,623	236,998
Total Loans and Leases	244,162	238,252
Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	253	108
60-89 Days Past Due	33	24
Greater Than 89 Days	111	88
Total Past Due	397	220
Current	53,874	54,529
Total Loans and Leases	54,271	54,749
Real Estate-Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,482	3,325
60-89 Days Past Due	118	354
Greater Than 89 Days	8,495	6,710
Total Past Due	10,095	10,389
Current	416,244	420,801
Total Loans and Leases	426,339	431,190
Real Estate-Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due		224
Greater Than 89 Days	168	188
Total Past Due	168	412
Current	73,062	63,608
Total Loans and Leases	73,230	64,020
Home Equity and Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,558	1,583
60-89 Days Past Due	343	598
Greater Than 89 Days	2,756	2,951
Total Past Due	4,657	5,132
Current	326,148	332,510
Total Loans and Leases	330,805	337,642
Recorded Investment greater than 89 Days and still accruing	$134	$66

Loans_Leases_and_Other_Real_Es6

Loans, Leases and Other Real Estate - Impaired Loans with and without Specific Allowances (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	$25,812	$24,718	$25,693
Contractual Unpaid Principal Balance	28,811	27,855	28,927
Specific Allowance	1,458	1,262	1,892
Interest Income Recognized	195	202	711
Average Investment in Impaired loans	24,723	25,852	24,143
Commercial, Secured by Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	18,365	21,935	19,838
Contractual Unpaid Principal Balance	20,753	23,055	21,338
Specific Allowance	351	1,005	634
Interest Income Recognized	157	144	592
Average Investment in Impaired loans	18,626	19,766	19,950
Commercial, Secured by Real Estate [Member] | Loans with Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	5,563	11,891	5,666
Contractual Unpaid Principal Balance	5,695	12,918	5,818
Specific Allowance	351	1,005	634
Interest Income Recognized	58	88	156
Average Investment in Impaired loans	5,449	10,740	3,858
Commercial, Secured by Real Estate [Member] | Loans without Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	12,802	10,044	14,172
Contractual Unpaid Principal Balance	15,058	10,137	15,520
Interest Income Recognized	99	56	436
Average Investment in Impaired loans	13,177	9,026	16,092
Commercial, Industrial and Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	1,861	199	752
Contractual Unpaid Principal Balance	2,472	300	2,122
Specific Allowance	5	68	10
Interest Income Recognized	8	44	52
Average Investment in Impaired loans	928	3,805	1,855
Commercial, Industrial and Other [Member] | Loans with Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	684	153	425
Contractual Unpaid Principal Balance	1,191	153	425
Specific Allowance	5	68	10
Interest Income Recognized	5	2	9
Average Investment in Impaired loans	695	153	342
Commercial, Industrial and Other [Member] | Loans without Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	1,177	46	327
Contractual Unpaid Principal Balance	1,281	147	1,697
Interest Income Recognized	3	42	43
Average Investment in Impaired loans	233	3,652	1,513
Leases [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	14
Contractual Unpaid Principal Balance	14
Specific Allowance	14
Leases [Member] | Loans with Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	14
Contractual Unpaid Principal Balance	14
Specific Allowance	14
Real Estate-Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	2,913	567	2,919
Contractual Unpaid Principal Balance	2,913	567	2,919
Specific Allowance	72		217
Interest Income Recognized	13		19
Average Investment in Impaired loans	2,915	592	746
Real Estate-Residential Mortgage [Member] | Loans with Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	753		1,238
Contractual Unpaid Principal Balance	753		1,238
Specific Allowance	72		217
Interest Income Recognized	9		19
Average Investment in Impaired loans	753		438
Real Estate-Residential Mortgage [Member] | Loans without Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	2,160	567	1,681
Contractual Unpaid Principal Balance	2,160	567	1,681
Interest Income Recognized	4
Average Investment in Impaired loans	2,162	592	308
Real Estate-Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	563	495	188
Contractual Unpaid Principal Balance	563	2,411	552
Specific Allowance	2
Interest Income Recognized	1
Average Investment in Impaired loans	270	498	464
Real Estate-Construction [Member] | Loans with Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	394
Contractual Unpaid Principal Balance	394
Specific Allowance	2
Interest Income Recognized	1
Average Investment in Impaired loans	92
Real Estate-Construction [Member] | Loans without Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	169	495	188
Contractual Unpaid Principal Balance	169	2,411	552
Average Investment in Impaired loans	178	498	464
Home Equity and Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	2,096	1,522	1,996
Contractual Unpaid Principal Balance	2,096	1,522	1,996
Specific Allowance	1,014	189	1,031
Interest Income Recognized	16	14	48
Average Investment in Impaired loans	1,984	1,191	1,128
Home Equity and Consumer [Member] | Loans with Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	1,331	1,259	1,255
Contractual Unpaid Principal Balance	1,331	1,259	1,255
Specific Allowance	1,014	189	1,031
Interest Income Recognized	16	10	41
Average Investment in Impaired loans	1,243	928	975
Home Equity and Consumer [Member] | Loans without Specific Allowance [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment in Impaired loans	765	263	741
Contractual Unpaid Principal Balance	765	263	741
Interest Income Recognized		4	7
Average Investment in Impaired loans	$741	$263	$153

Loans_Leases_and_Other_Real_Es7

Loans, Leases and Other Real Estate - Company's Commercial Loan Portfolio (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Commercial, Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	$1,562,898	$1,529,761
Commercial, Secured by Real Estate [Member] | Pass 3 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	67,404	69,243
Commercial, Secured by Real Estate [Member] | Pass 4 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	501,876	479,667
Commercial, Secured by Real Estate [Member] | Pass 5 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	868,916	867,023
Commercial, Secured by Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	56,925	40,991
Commercial, Secured by Real Estate [Member] | Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	27,210	27,764
Commercial, Secured by Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	40,567	45,073
Commercial, Industrial and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	244,162	238,252
Commercial, Industrial and Other [Member] | Pass 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	1,477	1,040
Commercial, Industrial and Other [Member] | Pass 2 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	9,789	8,755
Commercial, Industrial and Other [Member] | Pass 3 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	52,503	30,386
Commercial, Industrial and Other [Member] | Pass 4 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	76,275	91,836
Commercial, Industrial and Other [Member] | Pass 5 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	66,169	69,723
Commercial, Industrial and Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	18,858	15,572
Commercial, Industrial and Other [Member] | Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	4,141	8,057
Commercial, Industrial and Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	14,950	12,883
Real Estate-Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	73,230	64,020
Real Estate-Construction [Member] | Pass 4 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	10,643	7,527
Real Estate-Construction [Member] | Pass 5 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	55,002	51,833
Real Estate-Construction [Member] | Watch [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	3,003	225
Real Estate-Construction [Member] | Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	3,101	2,710
Real Estate-Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Commercial loan portfolio	$1,481	$1,725

Loans_Leases_and_Other_Real_Es8

Loans, Leases and Other Real Estate - Allowance for Loan and Lease Losses by Portfolio Segment (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Allowance for Loan and Lease Losses:
Beginning Balance	$30,684	$29,821
Charge-offs	-1,281	-2,455
Recoveries	232	665
Provision	870	1,489
Ending Balance	30,505	29,520
Commercial, Secured by Real Estate [Member]
Allowance for Loan and Lease Losses:
Beginning Balance	13,577	14,463
Charge-offs	-546	-1,647
Recoveries	39	34
Provision	-510	1,285
Ending Balance	12,560	14,135
Commercial, Industrial and Other [Member]
Allowance for Loan and Lease Losses:
Beginning Balance	3,196	5,331
Charge-offs	-10	-13
Recoveries	42	591
Provision	79	-403
Ending Balance	3,307	5,506
Leases [Member]
Allowance for Loan and Lease Losses:
Beginning Balance	582	504
Charge-offs	-427	-39
Recoveries	20
Provision	863	-5
Ending Balance	1,038	460
Real Estate-Residential Mortgage [Member]
Allowance for Loan and Lease Losses:
Beginning Balance	4,020	3,214
Charge-offs	-17	-155
Recoveries	1	6
Provision	-706	-97
Ending Balance	3,298	2,968
Real Estate-Construction [Member]
Allowance for Loan and Lease Losses:
Beginning Balance	553	542
Charge-offs	-20
Recoveries	100
Provision	4	-59
Ending Balance	637	483
Home Equity and Consumer [Member]
Allowance for Loan and Lease Losses:
Beginning Balance	6,333	2,737
Charge-offs	-261	-601
Recoveries	30	34
Provision	822	442
Ending Balance	6,924	2,612
Unallocated [Member]
Allowance for Loan and Lease Losses:
Beginning Balance	2,423	3,030
Provision	318	326
Ending Balance	$2,741	$3,356

Loans_Leases_and_Other_Real_Es9

Loans, Leases and Other Real Estate - Loans Receivable Summarized by Portfolio Segment and Impairment Method (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	$25,812	$25,693
Ending Balance: Collectively evaluated for impairment	2,665,893	2,629,921
Total Loans and Leases	2,691,705	2,655,614
Commercial, Secured by Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	18,365	19,838
Ending Balance: Collectively evaluated for impairment	1,544,533	1,509,923
Total Loans and Leases	1,562,898	1,529,761
Commercial, Industrial and Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	1,861	752
Ending Balance: Collectively evaluated for impairment	242,301	237,500
Total Loans and Leases	244,162	238,252
Leases [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	14
Ending Balance: Collectively evaluated for impairment	54,257	54,749
Total Loans and Leases	54,271	54,749
Real Estate-Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	2,913	2,919
Ending Balance: Collectively evaluated for impairment	423,426	428,271
Total Loans and Leases	426,339	431,190
Real Estate-Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	563	188
Ending Balance: Collectively evaluated for impairment	72,667	63,832
Total Loans and Leases	73,230	64,020
Home Equity and Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	2,096	1,996
Ending Balance: Collectively evaluated for impairment	328,709	335,646
Total Loans and Leases	$330,805	$337,642

Recovered_Sheet1

Loans, Leases and Other Real Estate - Allowance for Loan Losses Summarized by Portfolio Segment and Impairment Classification (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	$1,458	$1,892	$1,262
Ending Balance: Collectively evaluated for impairment	29,047	28,792
Ending Balance	30,505	30,684	29,520	29,821
Commercial, Secured by Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	351	634	1,005
Ending Balance: Collectively evaluated for impairment	12,209	12,943
Ending Balance	12,560	13,577	14,135	14,463
Commercial, Industrial and Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	5	10	68
Ending Balance: Collectively evaluated for impairment	3,302	3,186
Ending Balance	3,307	3,196	5,506	5,331
Leases [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	14
Ending Balance: Collectively evaluated for impairment	1,024	582
Ending Balance	1,038	582	460	504
Real Estate-Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	72	217
Ending Balance: Collectively evaluated for impairment	3,226	3,803
Ending Balance	3,298	4,020	2,968	3,214
Real Estate-Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	2
Ending Balance: Collectively evaluated for impairment	635	553
Ending Balance	637	553	483	542
Home Equity and Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Individually evaluated for impairment	1,014	1,031	189
Ending Balance: Collectively evaluated for impairment	5,910	5,302
Ending Balance	6,924	6,333	2,612	2,737
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance: Collectively evaluated for impairment	2,741	2,423
Ending Balance	$2,741	$2,423	$3,356	$3,030

Recovered_Sheet2

Loans, Leases and Other Real Estate - Summary of Restructured Loans (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	Contract	Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	4	3
Pre-Modification Outstanding Recorded Investment	$1,568	$335
Post-Modification Outstanding Recorded Investment	1,568	335
Commercial, Industrial and Other [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Pre-Modification Outstanding Recorded Investment	1,149
Post-Modification Outstanding Recorded Investment	1,149
Leases [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Pre-Modification Outstanding Recorded Investment	14
Post-Modification Outstanding Recorded Investment	14
Real Estate-Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Pre-Modification Outstanding Recorded Investment	396
Post-Modification Outstanding Recorded Investment	396
Home Equity and Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	3
Pre-Modification Outstanding Recorded Investment	9	335
Post-Modification Outstanding Recorded Investment	$9	$335

Recovered_Sheet3

Loans, Leases and Other Real Estate - Summary of Restructured Debt within Previous 12 Months that have Subsequently Defaulted (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	Contract	Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	2	3
Recorded Investment	$485	$450
Commercial, Secured by Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		2
Recorded Investment		214
Real Estate-Residential Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Recorded Investment	483
Home Equity and Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1
Recorded Investment	$2	$236

Estimated_Fair_Value_of_Financ2

Estimated Fair Value of Financial Instruments and Fair Value Measurement - Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Assets/Liabilities:
Investment securities, available for sale	$473,452	$457,449
Obligations of States and Political Subdivisions [Member]
Assets/Liabilities:
Investment securities, available for sale	31,374	30,519
Equity Securities [Member]
Assets/Liabilities:
Investment securities, available for sale	18,065	17,574
Fair Value, Measurements, Recurring [Member]
Assets/Liabilities:
Investment securities, available for sale	473,452	457,449
Total Assets	473,661	457,486
Total Liabilities	209	37
Fair Value, Measurements, Recurring [Member] | Non-Hedging [Member] | Interest Rate Derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-hedging interest rate derivatives - Liabilities	209	37
Assets/Liabilities:
Non-hedging interest rate derivatives - Assets	209	37
Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member]
Assets/Liabilities:
Investment securities, available for sale	106,575	93,920
Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
Assets/Liabilities:
Investment securities, available for sale	316,934	314,931
Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Assets/Liabilities:
Investment securities, available for sale	31,374	30,519
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member]
Assets/Liabilities:
Investment securities, available for sale	504	505
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Assets/Liabilities:
Investment securities, available for sale	18,065	17,574
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value, Measurements, Recurring [Member]
Assets/Liabilities:
Investment securities, available for sale	12,933	12,475
Total Assets	12,933	12,475
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member]
Assets/Liabilities:
Investment securities, available for sale	8,425	8,321
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Assets/Liabilities:
Investment securities, available for sale	4,508	4,154
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Assets/Liabilities:
Investment securities, available for sale	460,519	444,974
Total Assets	460,728	445,011
Total Liabilities	209	37
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Non-Hedging [Member] | Interest Rate Derivatives [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-hedging interest rate derivatives - Liabilities	209	37
Assets/Liabilities:
Non-hedging interest rate derivatives - Assets	209	37
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member]
Assets/Liabilities:
Investment securities, available for sale	98,150	85,599
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
Assets/Liabilities:
Investment securities, available for sale	316,934	314,931
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Assets/Liabilities:
Investment securities, available for sale	31,374	30,519
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member]
Assets/Liabilities:
Investment securities, available for sale	504	505
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Assets/Liabilities:
Investment securities, available for sale	$13,557	$13,420

Estimated_Fair_Value_of_Financ3

Estimated Fair Value of Financial Instruments and Fair Value Measurement - Fair Value of Financial Assets Measured on a Nonrecurring Basis (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans and Leases	$25,812	$25,693	$24,718
Loans held for sale	1,598	592
Other real estate owned and other repossessed assets	826	1,026
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	1,598	592
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans and Leases	25,812	25,693
Other real estate owned and other repossessed assets	$826	$1,026

Estimated_Fair_Value_of_Financ4

Estimated Fair Value of Financial Instruments and Fair Value Measurement - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term municipal bond	5.2
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rates	5.00%
Capitalization rates	5.00%
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rates	11.00%
Capitalization rates	9.00%

Estimated_Fair_Value_of_Financ5

Estimated Fair Value of Financial Instruments and Fair Value Measurement - Carrying Values and Fair Values of Company's Financial Instruments (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financial Instruments - Assets
Investment securities held to maturity, Fair Value	$117,717	$109,030
Investment securities held to maturity, Carrying Value	115,779	107,976
Federal Home Loan Bank and other membership bank stocks, Fair Value	10,755	9,846
Federal Home Loan Bank and other membership bank stocks, Carrying Value	10,755	9,846
Loans and leases, net Fair Value	2,665,726	2,624,581
Loans and leases, net Carrying Value	2,659,291	2,623,142
Financial Instruments - Liabilities
Certificates of Deposit, Fair Value	291,627	279,439
Certificates of Deposit, Carrying value	291,703	279,962
Other borrowings, Fair Value	228,388	205,343
Other borrowings, Carrying value	222,728	202,498
Subordinated debentures, Fair Value	30,929	30,929
Subordinated debentures, Carrying Value	41,238	41,238
Significant Other Observable Inputs (Level 2) [Member]
Financial Instruments - Assets
Investment securities held to maturity, Fair Value	112,542	103,916
Federal Home Loan Bank and other membership bank stocks, Fair Value	10,755	9,846
Financial Instruments - Liabilities
Certificates of Deposit, Fair Value	291,627	279,439
Other borrowings, Fair Value	228,388	205,343
Significant Unobservable Inputs (Level 3) [Member]
Financial Instruments - Assets
Investment securities held to maturity, Fair Value	5,175	5,114
Loans and leases, net Fair Value	2,665,726	2,624,581
Financial Instruments - Liabilities
Subordinated debentures, Fair Value	$30,929	$30,929

Derivatives_Additional_Informa

Derivatives - Additional Information (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Available for sale securities pledged for collateral	$491,000	$505,000

Derivatives_Summary_Informatio

Derivatives - Summary Information Regarding Derivatives (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Customer Interest Rate Swaps [Member]
Derivative [Line Items]
Notional Amount	($17,176,000)	($17,279,000)
Average Maturity (Years)	5 years 6 months	5 years 8 months 12 days
Weighted Average Rate Fixed	3.84%	3.84%
Weighted Average Variable Rate, description	1 Mo Libor + 2.21
Weighted Average Variable Rate	2.21%	2.21%
Fair Value	209,000	37,000
3rd Party Interest Rate Swaps [Member]
Derivative [Line Items]
Notional Amount	17,176,000	17,279,000
Average Maturity (Years)	5 years 6 months	5 years 8 months 12 days
Weighted Average Rate Fixed	3.84%	3.84%
Weighted Average Variable Rate, description	1 Mo Libor + 2.21
Weighted Average Variable Rate	2.21%	2.21%
Fair Value	($209,000)	($37,000)

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	Segment
Finite-Lived Intangible Assets [Line Items]
Goodwill	$109,974,000		$109,974,000
Number of reportable unit	1
Amortization of core deposit intangible	111,000	123,000
Somerset Hills Acquisition [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	22,900,000		22,900,000
Core deposit intangible	2,700,000
Prior Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	$87,100,000		$87,100,000

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets - Schedule of Estimated Future Amortization Expense (Detail) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]
2015	$304
2016	366
2017	316
2018	267
2019	$218