National Penn Bancshares (NPBC) Inactive 10-K27 Feb 152014 FY Annual reportFinancial data

Company Profile

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2014	Feb. 23, 2015	Jun. 30, 2014
Entity Information [Line Items]
Entity Registrant Name	NATIONAL PENN BANCSHARES INC
Entity Central Index Key	700733
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$1.20
Entity Common Stock, Shares Outstanding		140,055,392
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Cash and due from banks	$110,784	$102,241
Interest-earning deposits with banks	303,055	181,282
Total cash and cash equivalents	413,839	283,523
Investment securities available-for-sale, at fair value	1,530,661	1,894,107
Investment securities held-to-maturity (Fair value $949,935 and $452,202 for 2014 and 2013, respectively)	921,042	438,445
Other securities	67,512	63,746
Loans held-for-sale	4,178	4,951
Loans, net of allowance for loan losses of $90,675 and $96,367 for 2014 and 2013, respectively	6,051,604	5,236,901
Premises and equipment, net	116,414	96,232
Accrued interest receivable	29,491	27,130
Bank owned life insurance	171,775	147,869
Other real estate owned and other repossessed assets	4,867	1,278
Goodwill	302,244	258,279
Other intangible assets, net	8,757	6,854
Unconsolidated investments	8,124	8,713
Other assets	120,357	123,820
TOTAL ASSETS	9,750,865	8,591,848
LIABILITIES
Non-interest bearing deposits	1,085,158	970,051
Interest bearing deposits	5,644,587	5,102,527
Total deposits	6,729,745	6,072,578
Customer repurchase agreements	607,705	551,736
Repurchase agreements	0	50,000
Federal Home Loan Bank advances	910,378	603,232
Senior Long Term Debt	125,000	0
Subordinated debentures	77,321	77,321
Accrued interest payable and other liabilities	112,077	105,115
TOTAL LIABILITIES	8,562,226	7,459,982
SHAREHOLDERS' EQUITY
Common stock, no stated par value; authorized 250,000,000 shares, issued: December 31, 2014 - 152,267,942; December 31, 2013 - 152,310,162	1,390,130	1,387,966
Accumulated deficit	-135,246	-175,990
Accumulated other comprehensive (loss) income	-10,991	-21,157
Treasury stock: December 31, 2014 - 5,131,856; December 31, 2013 - 6,511,411	-55,254	-58,953
TOTAL SHAREHOLDERS' EQUITY	1,188,639	1,131,866
TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY	$9,750,865	$8,591,848

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Investment securities held-to-maturity	$949,935	$452,202
Allowance for loan losses	$90,675	$96,367
SHAREHOLDERS' EQUITY
Common Stock, no par value (in dollars per share)	$0	$0
Common stock, authorized (in shares)	250,000,000	250,000,000
Common stock, issued (in shares)	152,267,942	152,310,162
Treasury stock (in shares)	5,131,856	6,511,411

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
INTEREST INCOME
Loans, including fees	$217,447	$220,158	$242,681
Investment securities
Taxable	45,453	40,497	42,725
Tax-exempt	24,976	27,421	30,052
Deposits with banks	143	203	1,370
Total interest income	288,019	288,279	316,828
INTEREST EXPENSE
Deposits	18,543	22,379	26,822
Customer repurchase agreements	1,624	1,805	2,116
Repurchase agreements	1,406	2,571	3,475
Short-term borrowings	1	41	1
Federal Home Loan Bank advances	5,612	6,329	22,983
Senior long-term debt	1,592	0	0
Subordinated debentures	2,127	3,092	7,425
Total interest expense	30,905	36,217	62,822
Net interest income	257,114	252,062	254,006
Provision for loan losses	5,751	5,250	8,000
Net interest income after provision for loan losses	251,363	246,812	246,006
NON-INTEREST INCOME
Wealth management	28,067	27,309	24,629
Service charges on deposit accounts	14,469	15,234	15,863
Insurance commissions and fees	12,814	12,692	12,858
Cash management and electronic banking fees	19,066	18,914	18,514
Mortgage banking	3,852	6,500	7,640
Bank owned life insurance	4,995	5,116	5,109
Earnings (losses) of unconsolidated investments	-549	710	1,487
Gain on sale of non-performing loans	946	0	0
Other operating income	8,494	9,427	9,458
Net gains (losses) from fair value changes on subordinated debentures	0	2,111	683
Net gains (losses) on sale of investment securities	21	54	-119
Impairment losses on investment securities
Impairment related losses on investment securities	0	0	-154
Non credit-related losses on securities not expected to be sold recognized in other comprehensive income before tax	0	0	0
Net impairment losses on investment securities	0	0	-154
Total non-interest income	92,175	98,067	95,968
NON-INTEREST EXPENSE
Salaries, wages and employee benefits	115,579	117,000	124,959
Premises and equipment	31,944	30,447	28,824
FDIC insurance	5,001	5,467	4,896
Other operating expenses	55,921	58,109	51,631
Acquisition related expenses	2,878	0	0
Loss on debt extinguishment	0	64,888	0
Corporate reorganization expense	0	6,000	0
Total non-interest expense	211,323	281,911	210,310
Income before income taxes	132,215	62,968	131,664
Income tax expense	33,509	9,581	32,754
Net Income	98,706	53,387	98,910
Net income available to common shareholders	$98,706	$53,387	$98,910
PER SHARE OF COMMON STOCK
Basic earnings available to common shareholders	$0.70	$0.37	$0.66
Diluted earnings available to common shareholders	$0.70	$0.37	$0.66
Dividends paid in cash	$0.41	$0.30	$0.41

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income before income taxes	$132,215	$62,968	$131,664
Other Comprehensive Income, Net of Tax	10,166	-45,486	3,535
Before Tax Amount [Member]
Income before income taxes	132,215	62,968	131,664
Unrealized gains (losses) on investment securities, Before Tax	30,677	-81,099	7,578
Impairment losses on investment securities realized in net income, Before Tax	0	0	-154
Net gains (losses) on sales of investment securities realized in net income, Before Tax	21	54	-119
Unrealized gains (losses) on investment securities, Before Tax	30,656	-81,153	7,851
Pension Adjustment, Before Tax	-15,016	11,174	-2,412
Other Comprehensive Income (Loss), Before Tax	15,640	-69,979	5,439
Comprehensive Income Before Tax	147,855	-7,011	137,103
Tax Expense (Benefit) [Member]
Net Income, Tax Expense	33,509	9,581	32,754
Unrealized holding gains (losses) on investment securities, Tax Expense	10,736	-28,385	2,652
Impairement losses on investment securities realized in net income, Tax Expense	0	0	-54
Net gains (losses) on sales on investment securities realized in net income, Tax	7	19	-42
Unrealized gains (losses) on investment securities, tax	10,729	-28,404	2,748
Pension Adjustment, Tax Expense	-5,255	3,911	-844
Other Comprehensive Income (Loss), Tax	5,474	-24,493	1,904
Comprehensive Income, Tax Expense	38,983	-14,912	34,658
Net of Tax Amount [Member]
Net income	98,706	53,387	98,910
Unrealized holding gains (losses) on investment securities, Net of Tax	19,941	-52,714	4,926
Impairment losses on investment securities realized in net income, Net of Tax	0	0	-100
Net gains (losses) on sales of investment securities realized in net income, Net of Tax	14	35	-77
Unrealized gains (losses) on investment securities, net of tax	19,927	-52,749	5,103
Pension Adjustment, Net of Tax	-9,761	7,263	-1,568
Other Comprehensive Income, Net of Tax	10,166	-45,486	3,535
Total comprehensive income	$108,872	$7,901	$102,445

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)	Total	Common Stock [Member]	Accumulated (Deficit) Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2011	$1,180,687,000	$1,383,082,000	($223,189,000)	$20,794,000	$0
Balance (in shares) at Dec. 31, 2011		151,883,036
Comprehensive income (loss):
Net income	98,910,000		98,910,000
Other comprehensive income, net of taxes	3,535,000			3,535,000
Total comprehensive income	102,445,000
Cash dividends declared common	-61,401,000		-61,401,000
Shares issued under share-based plans, net of excess tax benefits (in shares)		780,549
Shares issued under share-based plans, net of excess tax benefits	7,092,000	4,562,000			2,530,000
Treasury Stock Purchased (in shares)		-7,500,000
Treasury Stock Purchased (in $)	-67,531,000				-67,531,000
Balance at Dec. 31, 2012	1,161,292,000	1,387,644,000	-185,680,000	24,329,000	-65,001,000
Balance (in shares) at Dec. 31, 2012		145,163,585
Comprehensive income (loss):
Net income	53,387,000		53,387,000
Other comprehensive income, net of taxes	-45,486,000			-45,486,000
Total comprehensive income	7,901,000
Cash dividends declared common	-43,697,000		-43,697,000
Shares issued under share-based plans, net of excess tax benefits (in shares)		635,166
Shares issued under share-based plans, net of excess tax benefits	6,370,000	322,000			6,048,000
Treasury Stock Purchased (in shares)		0
Treasury Stock Purchased (in $)	0
Balance at Dec. 31, 2013	1,131,866,000	1,387,966,000	-175,990,000	-21,157,000	-58,953,000
Balance (in shares) at Dec. 31, 2013		145,798,751
Comprehensive income (loss):
Treasury Stock Purchased (in shares)					7,000,000
Balance at Mar. 31, 2014
Balance at Dec. 31, 2013	1,131,866,000	1,387,966,000	-175,990,000	-21,157,000	-58,953,000
Balance (in shares) at Dec. 31, 2013		145,798,751
Comprehensive income (loss):
Net income	98,706,000		98,706,000
Other comprehensive income, net of taxes	10,166,000			10,166,000
Total comprehensive income	108,872,000
Cash dividends declared common	-57,962,000		-57,962,000
Shares issued under share-based plans, net of excess tax benefits (in shares)		595,535
Shares issued under share-based plans, net of excess tax benefits	7,154,000	1,585,000			5,569,000
Stock Issued During Period, Shares, Acquisitions		8,030,953
Stock Issued During Period, Value, Acquisitions	77,258,000	579,000			76,679,000
Treasury Stock Purchased (in shares)		-7,289,155
Treasury Stock Purchased (in $)	-78,549,000				-78,549,000
Balance at Dec. 31, 2014	1,188,639,000	1,390,130,000	-135,246,000	-10,991,000	-55,254,000
Balance (in shares) at Dec. 31, 2014		147,136,084
Balance at Sep. 30, 2014
Comprehensive income (loss):
Treasury Stock Purchased (in shares)					300,000
Treasury Stock Purchased (in $)					-3,000,000
Balance at Dec. 31, 2014	1,188,639,000				-55,254,000
Comprehensive income (loss):
Treasury Stock Purchased (in shares)	7,300,000				7,300,000
Treasury Stock Purchased (in $)					($75,000,000)
Balance at Mar. 31, 2015

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$98,706	$53,387	$98,910
Net Income (Loss) Available to Common Stockholders, Basic	98,706	53,387	98,910
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	5,751	5,250	8,000
Depreciation and amortization	12,096	13,000	17,392
Amortization of premiums and discounts on investment securities, net	646	2,622	3,923
(Gains) losses from sale of investment securities, net	-21	-54	119
Impairment of investment securities	0	0	154
Decrease (increase) in fair value of subordinated debentures	0	-2,111	-683
Bank owned life insurance policy income	-4,995	-5,116	-5,109
Share-based compensation expense	4,315	3,309	3,513
Unconsolidated investment distributions (gains), net	589	2,634	826
Loans originated for resale	-100,253	-177,012	-237,115
Proceeds from sale of loans originated for resale	103,966	191,556	240,904
Proceeds from sale of non-performing loans	3,046	0	0
Gain on sale of loans, net	-2,939	-5,165	-5,903
Gain on sale of non-performing loans	-946	0	0
(Gains) losses on sale of other real estate owned, net	-144	-332	1,287
(Gains) Losses on Sale of Property	-122	-301	0
Loss on debt extinguishment	0	64,888	0
(Increase) decrease in accrued interest receivable	73	1,396	2,465
Increase (decrease) in accrued interest payable	390	-1,578	-4,528
Decrease (Increase) in other assets	4,494	-13,740	13,096
(Decrease) increase in other liabilities	-12,519	29,424	29,857
Net cash provided by operating activities	112,133	162,057	167,108
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from maturities and repayments of investment securities held-to-maturity	97,633	25,499	31,937
Proceeds from maturities and repayments of investment securities available-for-sale	279,208	433,200	402,516
Proceeds from sale of investment securities available-for-sale	39,346	3,432	1,876
Purchase of investment securities available-for-sale	-378,375	-612,024	-455,459
Purchase of investment securities held-to-maturity	-2,568	0	0
Proceeds from sale of other securities	-3,766	4,614	2,158
Proceeds from sale of loans previously held for investment	3,384	3,764	2,735
Increase in loans	-233,578	-131,552	-79,429
Purchases of premises and equipment	-22,850	-9,590	-9,819
Proceeds from the sale of other real estate owned	1,975	3,317	5,740
Proceeds from sale of buildings	4,183	868	0
Acquisitions, net of cash and cash equivalents	-24,302	0	0
Net cash (used in) provided by investing activities	-239,710	-278,472	-97,745
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in transaction and savings accounts	190,655	321,512	202,812
Net decrease in time deposits	-191,920	-184,499	-142,066
Net increase (decrease) in customer repurchase agreements	55,969	-8,329	36,087
(Decrease) increase in short-term borrowings	0	-100,000	100,000
Decrease in repurchase agreements	-50,000	-25,000	-10,000
Net increase (decrease) in FHLB advances	261,408	73,597	-154,032
Repayment of subordinated debentures	0	-65,206	0
Proceeds from Issuance of Senior Long-term Debt	125,000	0	0
Proceeds from shares issued, share-based plans	3,365	3,428	3,565
Excess tax benefit (expense) on share-based plans	-73	4	-191
Purchase of treasury stock	-78,549	0	-67,531
Cash dividends, common	-57,962	-43,697	-61,401
Net cash provided by (used in) used in financing activities	257,893	-28,190	-92,757
Net increase (decrease) in cash and cash equivalents	130,316	-144,605	-23,394
Cash and cash equivalents at beginning of year	283,523	428,128	451,522
Cash and cash equivalents at end of year	413,839	283,523	428,128
SUPPLEMENTAL CASH FLOW INFORMATION
Interest	29,856	37,796	67,351
Taxes	26,416	5,694	22,281
Assets acquired, noncash	772,391	0	0
Liabilities assumed, noncash	$709,645	$0	$0

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

	Nature of Operations

	National Penn Bancshares, Inc. (the “Company” or “National Penn”), primarily through its national bank subsidiary, National Penn Bank (“NPB”) serves residents and businesses primarily in eastern and central Pennsylvania. NPB, which has 127 retail branch office locations (119 in Pennsylvania, 7 in New Jersey, and 1 in Cecil County, Maryland), is a locally managed community bank providing commercial banking products, primarily loans and deposits.

	The Company’s financial service units consist of an array of investment, insurance and employee benefit services through its non-bank subsidiaries. National Penn’s financial services affiliates consist of National Penn Wealth Management, N.A., including its National Penn Investors Trust Company division; Institutional Advisors, LLC; and National Penn Insurance Services Group, Inc., including its Higgins Insurance and Caruso Benefits divisions.

	The Company and its operating subsidiaries compete for market share in the communities they serve with other bank holding companies, community banks, thrift institutions and other non-bank financial organizations, such as mutual fund companies, insurance companies and brokerage companies.

	The Company and its operating subsidiaries are subject to regulations of certain state and federal agencies. These regulatory agencies periodically examine the Company and its subsidiaries for adherence to laws and regulations. As a consequence, the cost of doing business may be affected.

	Basis of Financial Statement Presentation

	The accounting policies followed by the Company conform with accounting principles generally accepted in the United States of America (“GAAP”) and predominant practice within the banking industry.

	The consolidated financial statements include the accounts of the Company and the Company’s direct and indirect wholly owned subsidiaries. The Company’s unconsolidated subsidiaries, representing investments in joint ventures, and other entities are accounted for using the equity method of accounting. All material inter-company balances have been eliminated.

	Reclassifications

	Certain prior year amounts have been reclassified to conform to current period classifications. These reclassifications did not have a material impact on our consolidated financial condition or results of operations.

	Use of Estimates

	In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the balance sheets, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

	The principal estimates that are susceptible to significant change in the near term relate to the allowance for loan losses, goodwill and intangible assets, income taxes, and other-than-temporary impairment. Management’s practice is to retain supporting files for all accounting entries made, but in particular to organize, support and prepare clarifying memoranda for items in the financial statements requiring significant judgment.

	Business Combinations

	At the date of acquisition the Company records the net assets of acquired companies on the consolidated balance sheet at their estimated fair value, and goodwill is recognized for the excess of the purchase price over the estimated fair value of acquired net assets. The results of operations for acquired companies are included in the Company’s consolidated statement of income beginning at the acquisition date. Expenses arising from acquisition activities are recorded in the consolidated statement of income during the period incurred.


	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Revenue Recognition

	The Company recognizes revenue in the consolidated statement of income as it is earned and when collectability is reasonably assured. The primary source of revenue is interest income from interest earning assets, which is recognized on the accrual basis of accounting using the effective interest method. The recognition of revenues from interest earning assets is based upon formulas from underlying loan agreements, securities contracts or other similar contracts. Non-interest income is recognized on the accrual basis of accounting as services are provided or as transactions occur. Non-interest income includes fees from wealth management services, deposit accounts, sales of insurance products, cash management and electronic banking services, mortgage banking activities, standby letters of credit and financial guarantees, and other miscellaneous services and transactions.

	Advertising Costs

	Advertising costs are recorded in the period they are incurred within other operating expenses in non-interest expense in the consolidated statement of income. Advertising expense was $6.0 million, $5.5 million, and $5.6 million for the years ended December 31, 2014, 2013 and 2012, respectively.

	Cash and Cash Equivalents

	Cash and due from banks and interest bearing deposits with banks comprise “cash and cash equivalents” on the consolidated balance sheet and statement of cash flows. Cash held on deposit with other financial institutions is in excess of FDIC insurance limits.

	The Company is required to maintain cash reserves that are considered restrictions on cash and due from banks shown on our consolidated balance sheet. These restrictions consist of required reserves with the Federal Reserve Bank related to our deposit liabilities and cash collateral related to letters of credit and interest rate swaps with financial institution counterparties. Total restricted cash was $75.3 million and $52.4 million for the years ended December 31, 2014 and 2013, respectively.

	Investment Securities and Other Investments

	Investment securities which are held for indefinite periods of time, which management intends to use as part of its asset/liability strategy, or which may be sold in response to changes in interest rates, changes in prepayment risk, increases in capital requirements, or other similar factors, are classified as available-for-sale and are recorded at their estimated fair value on the consolidated balance sheet. Changes in unrealized gains and losses for such securities, net of tax, are reported in accumulated other comprehensive income as a separate component of shareholders’ equity and are excluded from the determination of net income. Investment securities which have stated maturities for which the Company has the intent and ability to hold until the maturity date are classified as held-to-maturity and are recorded at amortized cost on the consolidated balance sheet.

	Transfers of debt securities into the held-to-maturity category from the available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security. Debt securities originally classified as available-for-sale and which have been subsequently reclassified as held-to-maturity are recorded at carrying value on the consolidated balance sheet. The carrying value of reclassified securities represents their amortized cost as well as any remaining unamortized unrealized holding gain or loss.

	Interest from debt securities is recognized in interest income inclusive of adjustments for amortization of purchase premiums and accretion of purchase discounts using the interest method. Dividends from investments in equity securities are accrued in interest income in the consolidated statement of income when they are declared. Gains or losses from the disposition of investment securities are recognized at the trade date as non-interest income in the consolidated statement of income, based on the net proceeds and cost of the securities sold, adjusted for amortization of premiums and accretion of discounts, using the specific identification method.



	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	When the fair value of an investment security is less than the carrying value, the security is considered to be impaired, and as such the Company reviews the security for the presence of other-than-temporary impairment ("OTTI"). This analysis is performed at least quarterly, and includes the consideration of numerous factors including the time period for which the fair
	value has been less than the carrying value, curtailment or suspension of dividends or cash flows, deterioration of financial performance or the creditworthiness of the issuer, performance of any underlying collateral, and negative trends in a particular industry or sector. The conclusion as to whether OTTI exists for an investment security is ultimately based upon the Company’s evaluation of the investment’s recoverability above its carrying value and its timing. In addition, the Company considers whether it plans to sell an investment security and whether it may be required to sell the security prior to recovery of its carrying value.

When the Company concludes an investment security is other-than-temporarily impaired, a loss for the difference between the investment security’s carrying value and the fair value is recognized as a reduction to non-interest income in the consolidated statement of income. For an investment in a debt security, if the Company does not intend to sell the investment security and concludes that it is not more likely than not it will be required to sell the security before recovering the carrying value, which may be maturity, the OTTI charge is separated into the "credit" and "other" components. The "other" component of the OTTI is included in other comprehensive income, net of the tax effect, and the "credit" component of the OTTI is included in the consolidated statement of income as a reduction to non-interest income.

Other investments are comprised of Federal Home Loan Bank ("FHLB") of Pittsburgh stock and Federal Reserve Bank stock. Federal Reserve Bank stock is an equity interest in the Philadelphia Federal Reserve Bank that is required of member banks. The required subscription for Federal Reserve Bank stock is equal to 6% of National Penn Bank’s capital and surplus. The stock is not transferable and additional purchases or cancellations of the stock are transacted directly with the Federal Reserve Bank of Philadelphia. FHLB stock is an equity interest that can be sold only to the issuing FHLB 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 other investments are recorded at cost or par value and are 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.

Loans and Leases

Loans that management has the intent to hold for the foreseeable future or until maturity or payoff are considered held for investment and are reported at the amount of unpaid principal, net of unearned income, unamortized deferred fees and origination costs, and commitment fees. The Company also estimates an allowance for loan losses, which is netted from the carrying amount of loans presented on the consolidated balance sheet. Interest on loans is calculated based upon the principal amount outstanding. Net deferred fees on Company originated loans, consisting of origination and commitment fees and direct loan origination costs, are amortized over the contractual life of the related loans using the interest method, which results in an adjustment of the related loan’s yield.

Loans are placed on non-accrual status and accrual of interest is suspended on a loan when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that collection of all contractually required payments is no longer probable. When a loan is on non-accrual status, payments are applied in their entirety to principal. If a borrower’s financial condition improves to the point where management believes that collection of the remaining principal and interest is probable, management may restore the loan to accrual status, at which time payments received are applied to both principal and interest and recognition of interest income continues. Generally, loans are placed on non-accrual status when they reach 90 days past due based on the contractual terms of the loan agreement.

Direct financing leases are carried at the aggregate of the lease payments plus the estimated residual value of the leased property, net of unearned income and deferred initial direct costs. Interest income on leases is recognized using the interest method over the lease term, which incorporates amortization of deferred initial direct costs as an adjustment to the lease’s yield. Residual values for leases are reviewed for impairment at least annually based upon historical performance, independent appraisals, and industry data. Valuation adjustments to residual values are included in other operating expenses within non-interest expense in the consolidated statement of income. Gains or losses from the sale of leased assets are also included in other operating income within non-interest income in the statement of income.

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Equipment underlying leases to customers for which a sale to the lessee is not implied or imminent is reported on the consolidated balance sheet within premises and equipment and is depreciated over its useful life. In the event that the lessee fails to meet a contractual leasing obligation, the remaining carrying value is considered a non-performing asset, including any underlying equipment which may be repossessed.

Purchased Loans

Purchased loans are initially recorded at their acquisition date fair values. Fair values for purchased loans are based on a discounted cash flow methodology that involves assumptions and judgments as to credit risk, default rates, loss severity, collateral values, discount rates, payment speeds, prepayment risk, and liquidity risk. No allowance for loan loss is recognized at the date of acquisition for purchased loans.

Purchased loans which have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments receivable, are considered to be “purchased credit impaired loans.” For purchased credit impaired (“PCI”) loans, the difference between the undiscounted cash flows expected at acquisition and the investment in the loans, or the “accretable yield,” is recognized as interest income on a level-yield method over the life of the loans. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “nonaccretable difference,” are not recognized as a yield adjustment or as a loss accrual or a valuation allowance. Increases in expected cash flows subsequent to the initial investment are recognized prospectively through adjustment of the yield on the loans over their remaining lives. Decreases in expected cash flows due to an inability to collect contractual cash flows are recognized as impairment through the provision for loan losses account. Any allowance for loan loss on these loans reflect only losses incurred after the acquisition (meaning the present value of all cash flows expected at acquisition that ultimately are not to be received). Any disposals of loans, including sales of loans, payments in full or foreclosures result in the derecognition of the loan at its carrying value with differences in actual results reflected in interest income.

Premiums and discounts related to purchased loans which did not have evidence of credit quality deterioration since origination at acquisition are included or netted with the balance of unpaid principal on the consolidated balance sheet and are also deferred and amortized over the contractual life of the loan using the interest method. Subsequent to the acquisition or purchase date, the method used to evaluate the sufficiency of the credit discount is similar to originated loans, and if necessary, additional reserves are recognized in the allowance for loan losses.

Loans Held-For-Sale

Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value on the consolidated balance sheet, and these loans are traditionally sold servicing released. The fair value of loans held-for-sale is estimated based upon the contractually agreed upon sales price to investors. Write-downs to fair value, if any, are reflected through a valuation allowance netted from the cost basis of the loans on the consolidated balance sheet and a related expense recorded as a reduction to mortgage banking income in the consolidated statement of income. At disposition, the difference between the net proceeds received and the carrying value of the loan is recorded as a gain or loss within mortgage banking income in the consolidated statement of income. Estimated credit losses, if any, on loans transferred to held-for-sale, which management previously intended to hold for investment, are charged to the allowance at the time of transfer. Non-credit related losses, if any, or subsequent gains or losses upon disposition are recorded in other operating income within non-interest income on the consolidated statement of income. Valuations of non-mortgage loans transferred to held-for-sale are performed on an individual basis.


1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Non-Performing Assets

Assets which are otherwise considered earning assets may cease to perform according to their original terms and become non-performing assets. The Company’s non-performing assets consist of non-accrual loans, loans defined as troubled debt restructurings, and other real estate owned. On an ongoing basis, the Company monitors economic conditions and reviews borrower financial results, collateral values, and compliance with payment terms and covenant requirements in order to identify problems in loan relationships. All problem loans are reviewed regularly for impairment. When management believes that the collection of all or a portion of principal and interest is no longer probable, the accrual of interest is suspended, and payments for interest are applied to principal until the Company determines that all remaining principal and interest can be recovered. This may occur at any time regardless of delinquency status, however, loans 90 days or more past due are reviewed monthly to determine whether the accrual of interest should continue. Loans for which the accrual of interest has been suspended are categorized as non-accrual loans.

Through negotiations with a borrower, the Company may restructure a loan prior to or at its contractual maturity. Modification of a loan’s terms constitutes a troubled debt restructuring ("TDR") if the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession that it would not otherwise consider. The Company restructures loans in an attempt to preserve or improve the economic recovery of principal and/or interest due from a borrower. Not all modifications of loan terms automatically result in a TDR, only modifications which are concessions (terms not otherwise attainable) to a borrower experiencing financial distress constitute TDRs. TDRs are disclosed as restructured loans. TDRs and non-accrual loans comprise the Company’s impaired loans which are evaluated individually for purposes of determining the allowance for loan losses.

Other real estate owned ("OREO") results from the acquisition of real estate through foreclosure, abandonment, or conveyance of deed in lieu of foreclosure of a loan. OREO is carried on the consolidated balance sheet within OREO and other repossessed assets at the estimated fair value of the real estate less expected costs to sell at the acquisition date. Any loss upon reclassification from loans to OREO is recognized as a charge to the allowance for loan losses. During the holding period, OREO continues to be measured at the lower of its carrying amount or estimated fair value less costs to sell, and any valuation adjustment and gains or losses upon disposition are recognized within other operating income within non-interest income in the consolidated statement of income. OREO is evaluated individually rather than as a group, unless the circumstances render the group measurement to be a more appropriate basis as determined by management.

Significant Concentrations of Credit Risk

Most of the Company’s activities are with customers located throughout eastern and central Pennsylvania. The Company’s commercial portfolio has a concentration in loans to commercial real estate investors and developers as defined by regulation. There are numerous risks associated with commercial loans that could impact the borrower’s ability to repay on a timely basis. They include, but are not limited to: the owner’s business expertise; changes in local, national, and in some cases international economies; competition; governmental regulation; and the general financial stability of the borrowing entity.

The Company attempts to mitigate these risks by completing an analysis of the borrower’s business and industry history, the borrower’s financial position, as well as that of the business owner. The Company will also require the borrower to periodically provide financial information on the operation of the business over the life of the loan. In addition, most commercial loans are secured by assets of the business or those of the business owner, which can be liquidated if the borrower defaults, along with the personal surety of the business owner.

Allowance for Loan Losses

Management conducts an analysis of the loan portfolio to estimate the amount of the allowance for loan losses ("allowance") which is adequate to absorb inherent losses on existing loans. The allowance is established through a provision for loan losses charged as an expense in the consolidated statement of income. Loans are charged-off to the allowance when management believes that the collectability of the principal is less than probable and sufficient information exists to make a reasonable estimate of the inherent loss or a loss event has been confirmed.



1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

The evaluation of the adequacy of the allowance includes an analysis of individual loans and groups of homogeneous loans. Loans in the portfolio are segregated by risk characteristics. This is primarily accomplished by separating loan types as well as loan risk designations including, but not limited to: loans classified as Substandard or Doubtful as defined by regulation; loans criticized internally or designated as Special Mention; and loans specifically identified by management as impaired.

The analysis of individual loans and analytical processes performed by management in the calculation of the allowance is ongoing, and adjustments may be made based on the assessment of internal and external influences on credit quality. Those influences include, but are not limited to: unemployment, delinquency and non-accrual rates, trends in loan volume, portfolio growth, portfolio concentrations, Board and loan review oversight, exceptions to policy, competition and other external factors, and/or changes in value of collateral dependent loans.

The Company evaluates economic conditions and reviews borrower financial results, collateral values, and compliance with contractual payment terms and covenant requirements in order to monitor loan relationships. A classified loan is one which is paying as agreed, but based upon management’s analysis is determined to be inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified have a well-defined weakness or weaknesses that jeopardize the repayment of the debt. They are characterized by the distinct possibility that the Company will
sustain some loss if the deficiencies are not corrected. All classified loans are evaluated to determine whether they are non-performing or whether it is probable they will become non-performing, based on facts and circumstances.

When management believes that the collection of all or a portion of principal and interest is no longer probable, the loan is placed on non-performing status, accrual of interest is suspended, and payments for interest are applied to principal until the Company determines that all remaining principal and interest can be recovered. This may occur at any time regardless of delinquency, however, loans 90 days or more past due are reviewed monthly to determine whether the accrual of interest should continue. Because all or a portion of the contractual cash flows are not expected to be collected in accordance with the underlying loan agreements, the loan is considered to be impaired, and the Company estimates and records impairment based upon the present value of the expected cash flows it will be able to collect.

Values of collateral securing customer loans are confirmed through regular updates and reviews, but at a minimum are updated every twelve months for all loans designated as Special Mention or Classified, every six to nine months for land loans. During the period between appraisal order and completion, management makes an estimate of collateral values based on available market information and other recent appraisal results.

Specific Reserves

Specific reserves are an estimation of losses specific to individual impaired loans. All non-performing and restructured loans are evaluated to determine the amount of specific reserve or the required charge-off, if any, to reduce the current carrying value of the individual loan to its net realizable value based on an analysis of the available sources of repayment, including liquidation of collateral. The net realizable value is estimated as the present value of expected future cash flows discounted at the loan’s effective interest rate, the observable market price if the loan is expected to be sold, or, if collateral dependent, the estimated fair value of the collateral less costs to sell based on recent appraisals. A specific reserve may be established instead of a charge-off when sufficient information exists to make a reasonable estimate of the loss but where a loss event has not yet been confirmed. While every impaired loan is individually evaluated, not every impaired loan requires a specific reserve. Specific reserves fluctuate based on changes in the collectability of underlying loans and any previously recorded charge-offs. A confirmed loss event could be a payment delinquency of typically 90 days or greater, bankruptcy, fraud, death, or defunct status of a business, project or development. Impaired loans are excluded from the calculation of allocated reserves as described below.

Charge-offs

Commercial and industrial loans are charged-off in whole or in part when they become 90 or more days delinquent based upon the terms of the underlying loan contract and when full collectability of the principal balance is no longer probable. Because all or a portion of the contractual cash flows are not expected to be collected, the loan is considered to be impaired, and the Company estimates and records impairment based upon the present value of the expected cash flows it will be able to collect. Loans in bankruptcy and loans to defunct businesses are charged-off to the estimated fair value of collateral, less costs to sell.


1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Commercial real estate loans are charged-off in whole or in part when they become 90 or more days delinquent based upon the terms of the underlying loan contract and when a collateral deficiency exists. Because all or a portion of the contractual cash flows are not expected to be collected, the loan is considered to be impaired, and the Company estimates and records impairment based upon the expected cash flows it will be able to collect, which is generally from the liquidation of the pledged collateral. Loans in bankruptcy and loans to defunct projects or development businesses are charged-off to the estimated fair value of collateral, less costs to sell.

Consumer loans are charged-off when they become non-performing, which is when they become 90 days or more past due. At that time, the amount of the estimated collateral deficiency, if any, is charged-off for loans secured by collateral, all other loans are charged-off in full. Loans in which the borrower is in bankruptcy are charged-off within 60 days of receipt of notification of the bankruptcy filing or within the timeframes specified in policy, whichever is shorter, unless it can be established that repayment is likely to occur. Loans with collateral are charged-down to the estimated fair value of collateral, less costs to sell.

Allocated Reserves

Allocated reserves represent an allowance for groups of homogeneous loans which are similar in nature and as such are not individually evaluated for impairment. Allocated reserves are applied to both the non-criticized and criticized and classified portions of each portfolio. The Company segregates the loan portfolio into strata based upon risk characteristics which reflect the behavior and performance of the underlying loans.

Classified and criticized loans are stratified based upon underlying loan types and characteristics and are separately evaluated to determine the amount of reserve considered adequate. Loss factors are based on the loan type, performance trends, portfolio characteristics, risk, and assigned ratings.

For pass-rated loans, an estimate of inherent loss is made by applying portfolio-specific environmental and historical loss factors to the period-end balances of each loan category. Environmental factors are applied in addition to historical loss factors to reflect trends which management believes are not fully incorporated in historical net charge-off ratios. Environmental factors include: unemployment, delinquency and non-accrual rates, trends in loan volume and portfolio growth, portfolio concentrations, Board and loan review oversight, exceptions to policy, experience of management, competition and other external factors, and changes in the fair value of collateral dependent loans. A historical loss factor is generated using actual losses for the preceding twelve quarters from the current quarter end. The loss percentages are weighted to utilize the most relevant and current loss experience.

Unallocated Reserve

The unallocated reserve addresses inherent losses not included elsewhere in the allowance. It represents an element in the adequacy of the allowance given the nature of the calculation and the inherent imprecision and uncertainty as to estimated losses.

Premises and Equipment

Land is stated at cost. Buildings, equipment and leasehold improvements are stated at cost less accumulated depreciation and amortization which is generally computed on a straight-line basis over the estimated useful life of the asset. Leasehold improvements are amortized using the straight-line method over the lesser of the estimated economic life or the lease term. Depreciation and amortization expense for premises and equipment is included in premises and equipment expense in the consolidated statement of income.

The Company leases certain premises and equipment under non-cancellable operating leases. Certain leases contain renewal options and rent escalation clauses calling for rent increases over the term of the lease. Rental expense for all leases which contain escalation clauses are accounted for on a straight-line basis over the lease term.

Expenses for maintenance and repairs are recorded in premises and equipment expense in the consolidated statement of income as they are incurred.


1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Accrued Interest Receivable

The Company records interest income on interest earning assets on the accrual basis which results in the recognition of interest income recorded in the consolidated statement of income before it is received. The consolidated balance sheet includes the amount of interest earned on the accrual basis of accounting but not yet received as of the date presented. The balance is primarily comprised of interest earned on loans to customers and dividends and interest on investment securities.

Bank Owned Life Insurance

The Company invests in bank owned life insurance ("BOLI") policies that provide earnings to help cover the cost of employee benefit plans. The Company is the owner and beneficiary of the life insurance policies it purchased directly on a chosen group of employees or it obtained through acquisitions of other institutions that previously purchased the policies. The policies are carried on the Company’s consolidated balance sheet at their cash surrender value and are subject to regulatory capital requirements. The determination of the cash surrender value includes a full evaluation of the contractual terms of each policy and assumes the surrender of policies on an individual-life by individual-life basis. Additionally, the Company
periodically reviews the creditworthiness of the insurance companies that have underwritten the policies. Earnings accruing to the Company are derived from the general account investments of the insurance companies. Increases in the net cash surrender value of BOLI policies and insurance proceeds received are not taxable and are recorded in non-interest income in the consolidated statement of income.

Goodwill and Other Intangible Assets

Goodwill is recognized for the excess of the purchase price over the estimated fair value of acquired net assets in a business combination. Goodwill is not amortized but is reviewed for potential impairment on at least an annual basis, which the Company performs during the second quarter of each year. The Company has the option of performing a qualitative assessment to determine whether it is more likely than not that the fair value of one of the Company’s identified reporting units is less than its carrying value. If the results of the qualitative assessment indicate the potential for impairment, the Company would perform the two-step goodwill impairment analysis.

In performing the two-step goodwill impairment analysis, if necessary, the estimated fair value of each reporting unit is compared to its carrying value, inclusive of the goodwill assigned to it. If the carrying value of a reporting unit exceeds the estimated fair value, an indicator of goodwill impairment exists and a second step is performed to determine if any goodwill impairment exists. In the second step, the Company calculates the implied value of goodwill by emulating a business combination for each reporting unit. This step subtracts the estimated fair value of net assets in the reporting unit from the step one estimated fair value to determine the implied value of goodwill. If the implied value of goodwill exceeds the carrying value of goodwill allocated to the reporting unit, goodwill is not impaired, but if the implied value of goodwill is less than the carrying value of the goodwill allocated to the reporting unit, an impairment charge is recognized for the difference in the consolidated statement of income with a corresponding reduction to goodwill on the consolidated balance sheet. The Company’s business segments are its reporting units which are "Community Banking" and "Other" for purposes of the goodwill impairment analysis.

In performing its analysis of goodwill impairment, the Company makes significant judgments, particularly with respect to estimating the fair value of each reporting unit and if the second step is required, estimating the fair value of net assets. The Company evaluates each reporting unit and estimates a fair value as though it were an acquirer. The estimates utilize historical data, cash flows, and market and industry data specific to each reporting unit. Industry and market data is used to develop material assumptions such as transaction multiples, required rates of return, control premiums, costs and synergies of a transaction, and capitalization.

On an interim basis, the Company evaluates whether circumstances are present that could indicate potential impairment of its goodwill. These circumstances include, but are not limited to, prolonged trading value of the Company’s common stock relative to its book value, adverse changes in the business or legal climate, actions by regulators or loss of key personnel. When the Company determines that these or other circumstances are present, the Company tests the carrying value of goodwill for impairment at an interim date.



1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Other intangible assets are specifically identified intangible assets created from a business combination. Core deposit intangibles represent the value of checking, savings and other acquired, low-cost deposits. Core deposit intangibles are amortized over the lesser of the estimated lives of deposit accounts or ten years on an accelerated basis. Decreases in deposit lives may result in increased amortization and/or an impairment charge. Other intangible assets also include customer lists and covenants not to compete. These assets are amortized over the lesser of their contractual life or estimated economic life on a straight-line basis.

Unconsolidated Investments Under the Equity Method

The Company invests in partnerships and other non-consolidated businesses and, depending upon the nature and/or ownership interest held, may elect to account for these investments using the equity method. The Company’s proportionate share of income or loss on equity method investments is recorded in non-interest income in the consolidated statement of income using the accrual basis of accounting. Cash received by the Company for dividends or distributions on these investments reduces the carrying value of the equity method investment on the consolidated balance sheet. These investments are reviewed at least annually for other-than-temporary declines below the investment’s carrying value. Consideration is given to a number of variables, including any expected tax credits or other similar benefits from each investment. Impairment charges are recorded as a reduction to the investment’s carrying value on the consolidated balance sheet and to non-interest income in the consolidated statement of income.

Repurchase Agreements

The Company’s repurchase agreements are secured borrowing transactions collateralized by investment securities. The Company sells investment securities to counterparties for cash with an agreement to repurchase the exact or substantially the same securities at a specified date. On the trade date, the Company records a liability on the consolidated balance sheet for the amount for which securities will be subsequently reacquired, including accrued interest, based upon the contractual term of the transaction. Interest expense from repurchase agreements is recognized on the accrual basis of accounting in the consolidated statement of income.

The securities underlying repurchase agreements are identified and disclosed as pledged for this purpose in the notes to the financial statements. The investment securities remain on the Company’s consolidated balance sheet and are accounted for consistent with the Company’s other investment securities available-for-sale. Repurchase agreements are satisfied by the payment of cash from the Company to the counterparty at which time the securities identified in the transaction are no longer considered pledged.

Senior Long-term Debt

On September 16, 2014, the Company issued $125 million aggregate principal amount of unsecured, fixed rate senior notes with a maturity date of September 30, 2024. The notes bear an annual fixed interest rate of 4.25%, and are payable, as to interest, on March 30th and September 30th of each year, commencing March 30, 2015. Interest expense related to the notes is recognized on the accrual basis of accounting in the consolidated statement of income.

Issuance costs incurred in relation to the notes is being amortized over the life of the notes as an increase to interest expense in the consolidated statement of income using the interest method. The unamortized portion of the issuance costs is included within other assets on the consolidated balance sheet.

Subordinated Debentures

The Company has four established statutory business Trusts: NPB Capital Trust III, NPB Capital Trust IV, NPB Capital Trust V and NPB Capital Trust VI (“Trusts”). The Company owns all of the common capital securities of the Trusts. The Trusts issued preferred capital securities to investors and invested the proceeds in junior subordinated debentures issued by the Company. These debentures are the sole assets of the Trusts, which are considered variable interest entities. The Company is not the variable interest holder, and as such does not consolidate the Trusts. The liabilities to the Trusts are reflected as subordinated debentures on the Company’s consolidated balance sheet, and the common capital securities are included in other assets. Interest is paid on amounts borrowed from the Trusts and recorded in interest expense in the consolidated statement of income on the accrual basis of accounting.


1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Costs related to the issuance of subordinated debentures are being amortized over the life of the instruments as an increase to interest expense in the consolidated statement of income using the interest method. The unamortized portion of the issuance costs is included within other assets on the consolidated balance sheet.

The Company’s maximum exposure to the Trusts is $75 million, which is the Company’s liability to the Trusts.

Employee Benefit Plans

The Company accrues for benefits to employees and executive officers resulting from established plans and other contracts which are generally non-contributory. The benefits associated with these arrangements and plans are earned over a service period, and the Company estimates the amount of expense applicable to each plan or contract and includes it in salaries, wages and employee benefits expense in the consolidated statement of income for each period. The estimated obligations for the plans and contracts are reflected as liabilities on the consolidated balance sheet. The determination of each obligation and the related expense is based upon formulas in plan documents or agreements, but also requires judgment on the part of the Company to determine the assumptions applied to each formula. In addition, for the non-contributory pension plan there are amounts included in accumulated other comprehensive income (loss) related to certain costs which require recognition over the course of several reporting periods.

Income Taxes

The Company accounts for income taxes under the asset and liability method. Deferred tax assets and liabilities are recorded on the consolidated balance sheet for future tax events that arise from the difference between the financial statement and tax basis of assets and liabilities as measured by the enacted tax rates. Changes in tax rates are recognized in the Company’s financial statements during the period they are enacted. When a deferred tax asset or liability, or a change thereto, is recorded on the consolidated balance sheet, deferred tax expense or benefit is recorded within the income tax expense line of the consolidated statement of income for purposes of determining the current period’s net income.

Deferred tax assets are recorded on the consolidated balance sheet at net realizable value. The Company periodically performs an assessment to evaluate the amount of deferred tax assets it is more likely than not to realize. The realization of deferred tax assets is dependent upon the amount of taxable income expected in future periods, as tax benefits require taxable income to be realized. If a valuation allowance is required, the deferred tax asset on the consolidated balance sheet is reduced via a corresponding income tax expense in the consolidated statement of income.

The Company recognizes the benefit of a tax position in the financial statements only after determining that the relevant tax authority would more likely than not sustain the position following an audit. For tax positions meeting the more likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority. For these analyses, the Company may engage attorneys to provide opinions related to certain positions. Any interest and penalties related to uncertain tax positions, when applicable, is recognized in income tax expense in the consolidated statement of income.

Financial Instruments with Off-Balance-Sheet Risk

The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include commitments to extend credit, standby letters of credit, forward sale commitments, and interest rate swaps. Certain of those instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized on the consolidated balance sheet. The contract or notional amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments.



1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

The Company’s exposure to credit loss in the event of non-performance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual notional amount of these instruments. The Company uses the same credit policies in making commitments and contractual obligations as it does for on-balance-sheet instruments. For interest rate swaps, the contract or notional amounts do not represent exposure to credit loss, but rather the credit risk is consistent with the estimated fair value due from counterparties to these contracts. The Company controls the credit risk of its interest rate swap agreements through credit approvals, limits and monitoring procedures. The Company reflects its estimate of credit risk for these instruments (including unfunded commitments, letters of credit, and interest rate swaps) in other liabilities on the consolidated balance sheet with the corresponding expense recorded in other operating expenses in the consolidated statement of income.

Financial instruments that are derivatives are reported at estimated fair value within other assets or other liabilities on the consolidated balance sheet. An instrument is generally considered a derivative if it is based on one or more underlyings, no (or a minimal) initial net investment is required, and the contract can be net settled. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship. For derivatives not designated or qualifying as hedges, the gain or loss is included in the determination of net income. For derivatives designated and qualifying as hedges, only the ineffective portion is included in the determination of net income, the effective portion is included in the determination of net income consistent with the hedged item.

The Company enters into interest rate swaps ("swaps") to facilitate customer transactions and meet their financing needs. These swaps are considered derivatives, but are not designated in hedging relationships. These instruments have interest rate and credit risk associated with them. To mitigate the interest rate risk, the Company enters into offsetting interest rate swaps with counterparties. The counterparty swaps are also considered derivatives and are also not designated in hedging relationships. Interest rate swaps are recorded within other assets or other liabilities on the consolidated balance sheet at their estimated fair value. Changes to the fair value of assets and liabilities arising from these derivatives are included, net, in other operating income in the consolidated statement of income.

The Company may enter into interest rate swap contracts in order to hedge its exposure to the variability of cash flows on certain floating-rate obligations. Cash flow hedges are intended to convert liabilities from a floating-rate instrument to a fixed-rate instrument. The Company’s intention is to design cash flow hedges to qualify for hedge accounting, and as such the estimated fair value of the hedge would be recorded either in other assets or other liabilities with an offset, after estimated taxes, recorded in accumulated other comprehensive income (loss). The ineffective portion of the hedging relationship would be recorded in other operating expenses in the consolidated statement of income. Amounts would be reclassified from accumulated other comprehensive income (loss) to interest expense in the consolidated statement of income during the period the hedged item affects earnings. Cash flows associated with the hedges are treated consistently with the cash flows of the hedged item during the period in which they occur.

The Company periodically enters into interest rate lock commitments with its mortgage loan customers whose loans are intended for sale after the loan is closed. These commitments are derivatives and, as such, are reported on the consolidated balance sheet at their estimated fair value. The Company’s methodology for estimating the fair value of these derivatives is based upon the change in pricing of mortgage-backed securities with similar interest rates and duration. To hedge the fair value risk associated with changing interest rates on these commitments, the Company enters into forward commitments to sell the loans. These hedges are economic hedges and are not designated in hedging relationships. The forward sale commitments are also derivatives and are recorded on the consolidated balance sheet at their estimated fair value. The Company’s methodology for valuing these derivatives is based upon the fair value of the closed loans and the change in fair value of the interest rate lock commitments, as previously described. The net change in the estimated fair value of the derivatives for commitments to customers and forward loan sale commitments during each period is recorded in mortgage banking income in the consolidated statement of income.



1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

The Company estimates the fair value of letters of credit as the fees paid by the customer or charged for the arrangement. The fair value is recorded in other liabilities on the consolidated balance sheet, and subsequently, the income is recognized in other operating income within non-interest income in the consolidated statement of income over the contractual life of the instrument. If required to perform on a standby letter of credit, the Company records an amount due from the customer, which is recorded net of any unaccreted liability. Additional amounts estimated to be uncollectible, net of estimated proceeds from collateral, are charged-off against the appropriate allowance on the consolidated balance sheet.

Interest rate swap derivatives with the same counterparty and subject to master netting arrangements are not offset on the consolidated balance sheet. For additional detail refer to Footnote 14 within this section.

Accumulated Other Comprehensive Income

Accumulated other comprehensive income ("AOCI") includes items that are subject to periodic measurement on the consolidated balance sheet but are not included in the determination of net income for the period in the consolidated statement of income. As such, amounts recorded in AOCI are on an after-tax basis and consist primarily of unrealized gains or losses on investment securities available-for-sale, unamortized unrealized gains or losses on investment securities reclassified from available-for-sale to held-to-maturity, and changes in pension obligations.

Share-Based Compensation

The Company has certain share-based employee and director compensation plans. The related share-based employee compensation is included in salaries, wages and employee benefits expense in the consolidated statement of income during the period in which it is earned. Share-based director compensation expense is included in other operating expense in the consolidated statement of income. The compensation cost for share-based compensation arrangements is determined based upon the estimated fair value of the award at the grant date and is recognized as an expense over the service period. Performance criteria for share-based awards are factored into the amount of expense recognized when applicable. The Company records tax benefits of share-based payments as a financing cash inflow and corresponding operating cash outflow in the consolidated statement of cash flows during the period in which they occur.

Option awards are granted with an exercise price at least equal to the market price of the Company’s stock at the date of grant. Option awards vest at such times as are determined by the Compensation Committee of the Board of Directors at the time of grant, but not before one year from the date of grant or later than five years from the date of grant. The options have a maximum term of ten years for incentive stock options or ten years, one month for non-qualified stock options.

The Company utilizes the Black-Scholes option valuation model to estimate the fair value of options granted. The model is sensitive to changes in assumptions which can materially affect the fair value estimate:


•	The risk-free interest rates used are from published U.S. Treasury zero-coupon rates for bonds approximating the expected term of the option as of the option grant date;


•	The expected dividend yield is computed based on the Company’s current dividend rate; and


•	The Company relies exclusively on historical volatility as an input for determining the estimated fair value of stock options. The Company determines expected volatility based on the expected life of the option.

In determining the expected life of the option grants, the Company observes the actual terms of prior grants with similar characteristics and the actual vesting schedule of the grants.

Share-based payments are also granted in the form of restricted stock awards or units. Restricted stock is granted with service criteria and may also include performance criteria. The fair value of each award is estimated based on the fair value of the Company’s common stock on the date of grant.

Share-based payment plans are further described in Footnote 18 within this section.


1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Treasury Stock

Shares of the Company’s common stock which are repurchased on the open market are classified as treasury stock on the consolidated balance sheet. Treasury stock is recorded at the cost at which it was obtained in the open market, and at the date of reissuance, treasury stock on the consolidated balance sheet is reduced by the cost for which it was purchased using specific identification, on a first-in, first-out basis.

Earnings Per Share

Earnings per share is calculated on the basis of the weighted-average number of common shares outstanding during the year. All per share information in the financial statements is adjusted retroactively for the effect of stock dividends and splits.

Diluted shares and earnings per share take into account the potential dilution that could occur if securities or other contracts to issue common stock were exercised and converted into common stock. The dilutive effect of stock options, warrants, and other instruments is calculated using the treasury stock method.

Recent Accounting Pronouncements

Goodwill

In September 2011, the Federal Accounting Standard Board ("FASB") simplified how entities test goodwill for impairment, whereby an entity has the option to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after its assessment, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, it would not have to perform the current two-step goodwill impairment test. This amendment was effective for the Company for its fiscal year beginning January 1, 2012 and the adoption of this standard did not have a material effect on the financial condition or results of operations of the Company.

Comprehensive Income

In June 2011, the FASB released a standard requiring comprehensive income to be presented either in a single continuous statement or in two separate but consecutive statements. The single continuous statement format combines other comprehensive income, its components and total comprehensive income with the consolidated statement of income. In the two statement approach, the first statement would be the statement of income immediately followed by a separate statement which includes the components of other comprehensive income, total other comprehensive income and total comprehensive income. The standard was effective for the Company beginning January 1, 2012 and requires retrospective application.

In February 2013, the FASB released guidance on disclosures about reclassifications out of accumulated other comprehensive income. The issuance of this guidance now requires entities to disclose:


•	For items reclassified out of accumulated other comprehensive income ("AOCI") and into net income in their entirety, the effect of the reclassification on each affected net income line item; and


•	For AOCI reclassification items not reclassified in their entirety into net income, a cross reference to the related footnote where additional information on the effect of the reclassification is disclosed.

The adoption of this disclosure requirement did not materially impact the Company's financial condition or result of operations.

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Balance Sheet Offsetting

In January 2013, the FASB updated the disclosure requirements surrounding the offsetting of assets and liabilities on an entity's balance sheet. As part of the updated requirements, an entity shall disclose information to enable users of its financial statements to evaluate the effect or potential effect of rights of setoff associated with recognized derivatives, repurchase agreements, reverse repurchase agreements, and securities lending or securities borrowing transactions that are either (1) offset in the balance sheet or (2) subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset on the balance sheet. The Company adopted this guidance for the year ended December 31, 2013. Adoption of this guidance did not materially impact the Company's financial condition or results of operations, however did result in additional disclosures.

Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists

In July 2013, the FASB issued explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance requires, with limited exception, that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a DTA for a net operating loss carryforward, or similar tax loss, or a tax credit carryforward. The new guidance is effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013. As this guidance only impacts financial statement presentation and related footnote disclosures, it will have no effect on the Company's financial position or results of operations.

Troubled Debt Restructurings by Creditors

In January 2014, the FASB issued guidance to clarify when banks should reclassify mortgage loans collateralized by residential real estate properties from the loan portfolio to other real estate owned. The FASB defined an in-substance repossession or foreclosure to have occurred and a creditor is considered to have taken physical possession of residential real estate collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) 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. The effective date is for annual periods, and interim periods within those annual periods, beginning after December 15, 2014, with early adoption permitted. The Company does not expect adoption of this guidance to have a material effect on the financial condition or results of operations of the Company.

In August 2014, the FASB issued a standard which will require creditors to derecognize certain foreclosed government-guaranteed mortgage loans and to recognize a separate other receivable that is measured at the amount the creditor expects to recover from the guarantor, and to treat the guarantee and the receivable as a single unit of account. The standard is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. The Company does not expect adoption of this guidance to have a material effect on the financial condition or results of operations of the Company.

Revenue from Contracts with Customers

The amendments in this update replaces the existing revenue recognition guidance, including most industry-specific revenue recognition guidance. The standard creates a single, principle-based revenue recognition framework and will require entities to apply significantly more judgment and expanded disclosures surrounding revenue recognition. The core principle requires an entity to recognize revenue in a manner that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard applies to contracts with customers to provide goods and services, with certain exclusions such as lease contracts, financing arrangements, and financial instruments. The amendments in this standard are effective for fiscal years beginning after December 15, 2016. The amendments can be adopted using either the full retrospective approach or a modified retrospective approach. Early adoption is prohibited. The Company's does not expect this guidance to have a material impact on its financial position or results of operations.

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern

Issued in August 2014, this standard provides guidance about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. This standard is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. As this guidance only impacts disclosures, it will have no effect on the Company's financial position or results of operations.

BUSINESS_COMBINATIONS

BUSINESS COMBINATIONS	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	BUSINESS COMBINATION

	On October 24, 2014, the Company completed its acquisition of TF Financial Corporation ("TF Financial"), a savings and loan holding company, and its wholly-owned banking subsidiary, 3rd Fed Bank. Headquartered in Newtown, Pennsylvania, TF Financial operated eighteen branch offices in Pennsylvania and New Jersey and had acquisition date estimated fair values of approximately $801 million of assets, which included $595 million of loans, and $658 million of deposits. The assets and liabilities of TF Financial were recorded on National Penn's consolidated balance sheet at their preliminary estimated fair values as of October 24, 2014, the acquisition date, and TF Financial's results of operations have been included in National Penn's consolidated statements of income and comprehensive income since that date.

	The acquisition was valued at approximately $136 million and resulted in the issuance of 8,030,953 shares of the Company's common stock in exchange for 1,903,139 shares of TF Financial common stock.

	The following table summarizes the amounts recorded on the consolidated balance sheets, and the resultant goodwill recorded at the acquisition date:


	(dollars in thousands)
	Fair value of consideration paid:	Estimated Fair Value at Acquisition

	Common stock issued	$	77,258

	Cash consideration	58,438

	Total consideration paid	135,696


	Fair value of identifiable assets acquired:
	Cash and cash equivalents	28,986

	Investment securities	124,325

	Accrued interest receivable and other assets	48,065

	Loans	595,241

	Core deposits intangible asset	4,760

	Total identifiable assets acquired	801,377


	Fair value of liabilities assumed:
	Deposits	658,432

	FHLB borrowings	45,999

	Other liabilities	5,214

	Total liabilities assumed	709,645


	Net identified assets acquired at fair value	91,732

	Goodwill recognized	$	43,964


	Based on a preliminary purchase price allocation, the Company recorded $44.0 million in goodwill and $4.8 million in core deposit intangibles as a result of the acquisition. These fair value estimates are provisional amounts based on third-party valuations that are currently under review. The amount of goodwill recorded reflects the excess purchase price over the estimated fair value of the net assets acquired. None of the goodwill is deductible for income tax purposes.



	2. BUSINESS COMBINATION - Continued

	All loans acquired were recorded at their preliminary estimated fair values as of the date of acquisition. No allowance for loan losses was carried over and no allowance was created at the acquisition date. Refer to Footnote 5 within this section for additional information related to the acquired loan portfolio.

EARNINGS_PER_SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
EARNINGS PER SHARE	. EARNINGS PER SHARE

	The components of the Company’s basic and diluted earnings per share are as follows:


	(dollars in thousands)	Year Ended December 31,
		2014		2013		2012
	Net income	$	98,706	$	53,387	$	98,910

	Calculation of shares

	Weighted average basic shares	141,281,690		145,602,670		150,566,098

	Dilutive effect of share-based compensation	541,917		441,388		293,897

	Weighted average fully diluted shares	141,823,607		146,044,058		150,859,995

	Earnings per share

	Basic	$	0.7	$	0.37	$	0.66

	Diluted	$	0.7	$	0.37	$	0.66


	The following stock options were excluded from the computation of earnings per share as they were anti-dilutive:


		Year Ended December 31,
		2014		2013		2012
	Stock options	1,948,027		3,429,793		4,322,167

	Exercise price

	Low	$	8.69	$	8.69	$	7.07

	High	$	21.49	$	21.49	$	21.49

INVESTMENT_SECURITIES

INVESTMENT SECURITIES	12 Months Ended
	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	. INVESTMENT SECURITIES

	The amortized cost, gross unrealized gains and losses, and fair values of the Company’s investment securities at December 31, 2014 are summarized as follows:


	(dollars in thousands)		Amortized				Gross				Gross				Fair
			Cost				Unrealized				Unrealized				Value
							Gains				Losses
	Available-for-Sale
	U.S. Government agencies		$	1,000			$	7			$	—			$	1,007

	State and municipal bonds		63,674				4,488				(82		)		68,080

	Agency mortgage-backed securities/collateralized mortgage obligations		1,442,102				19,234				(9,875		)		1,451,461

	Corporate securities and other		4,109				600				(348		)		4,361

	Marketable equity securities		3,583				2,169				—				5,752

	Total		$	1,514,468			$	26,498			$	(10,305	)		$	1,530,661



			Carrying				Gross				Gross				Fair
			Value (j)				Unrealized				Unrealized				Value
							Gains				Losses
	Held-to-Maturity

	U.S. Government agencies		$	3,869			$	55			$	—			$	3,924

	State and municipal bonds		551,627				24,480				(63		)		576,044

	Agency mortgage-backed securities/collateralized mortgage obligations		364,100				5,098				(694		)		368,504

	Corporate securities and other		1,446				21				(4		)		1,463

	Total		$	921,042			$	29,654			$	(761	)		$	949,935


	(j) For securities which were transferred from the available-for-sale category to held-to maturity, the carrying value of the transferred securities represents their fair value at the date of transfer adjusted for subsequent amortization. The carrying value of all other held-to-maturity securities represents their amortized cost.

	At March 31, 2014, 240 available-for-sale debt securities, with an amortized cost basis of $492 million, a net unrealized loss of $4.1 million and a fair value of $488 million, were reclassified as held-to-maturity. Transfers of debt securities into the held-to-maturity category from the available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security which will offset the effect on net interest income.


	4. INVESTMENT SECURITIES – Continued

	The amortized cost, gross unrealized gains and losses, and fair values of the Company’s investment securities at December 31, 2013 are summarized as follows:


	(dollars in thousands)		Amortized				Gross				Gross				Fair
			Cost				Unrealized				Unrealized				Value
							Gains				Losses
	Available-for-Sale

	U.S. Government agencies		$	1,000			$	—			$	(10	)		$	990

	State and municipal bonds		210,680				7,701				(3,670		)		214,711

	Agency mortgage-backed securities/collateralized mortgage obligations		1,683,092				18,040				(41,952		)		1,659,180

	Non-agency collateralized mortgage obligations		4,222				44				(8		)		4,258

	Corporate securities and other		9,517				646				(495		)		9,668

Marketable equity securities		3,583				1,717				—				5,300

Total		$	1,912,094			$	28,148			$	(46,135	)		$	1,894,107


		Amortized				Gross				Gross Unrealized Losses				Fair Value
		Cost				Unrealized
						Gains
Held-to-Maturity

State and municipal bonds		$	403,344			$	13,028			$	(895	)		$	415,477

Agency mortgage-backed securities/collateralized mortgage obligations		34,843				1,624				—				36,467

Non-agency collateralized mortgage obligations		258				—				—				258

Total		$	438,445			$	14,652			$	(895	)		$	452,202


Gains and losses from sales of investment securities are as follows:


(dollars in thousands)		For the Year Ended December 31,
		2014				2013				2012
Gains		$	142			$	54			$	16

Losses		(121		)		—				(135		)

Net gains (losses) on sales of investment securities		$	21			$	54			$	(119	)



4. INVESTMENT SECURITIES – Continued

The table below indicates the length of time individual securities have been in a continuous unrealized loss position at December 31, 2014 and December 31, 2013, respectively.


31-Dec-14
					Less than 12 months								12 months or longer							Total
(dollars in thousands)		No. of Securities			Fair				Unrealized Losses				Fair				Unrealized Losses			Fair		Unrealized Losses
					Value								Value							Value
State and municipal bonds		29			$	9,166			$	(47	)		$	10,572			$	(98	)	$	19,738	$	(145	)

Agency mortgage-backed securities/collateralized mortgage obligations		123			250,975				(1,763		)		296,419				(8,806		)	547,394		(10,569		)

Corporate securities and other		3			1,010				(4		)		1,150				(348		)	2,160		(352		)

Total		155			$	261,151			$	(1,814	)		$	308,141			$	(9,252	)	$	569,292	$	(11,066	)




31-Dec-13
					Less than 12 months								12 months or longer							Total
(dollars in thousands)		No. of Securities			Fair				Unrealized Losses				Fair				Unrealized Losses			Fair		Unrealized Losses
					Value								Value							Value
U.S. Government agencies		1			$	990			$	(10	)		$	—			$	—		$	990	$	(10	)

State and municipal bonds		145			76,402				(2,282		)		20,708				(2,283		)	97,110		(4,565		)

Agency mortgage-backed securities/collateralized mortgage obligations		241			953,423				(33,990		)		115,815				(7,962		)	1,069,238		(41,952		)

Non-agency collateralized mortgage obligations		5			820				(8		)		—				—			820		(8		)

Corporate securities and other		5			1,966				(35		)		2,708				(460		)	4,674		(495		)

Total		397			$	1,033,601			$	(36,325	)		$	139,231			$	(10,705	)	$	1,172,832	$	(47,030	)


The fair value of investment securities pledged as collateral are presented below:


(dollars in thousands)		December 31,
		2014				2013
Deposits		$	1,038,073			$	966,751

Customer repurchase agreements		662,737				595,761

Repurchase agreements		—				54,866

Other		75,939				81,408

Total		$	1,776,749			$	1,698,786



4. INVESTMENT SECURITIES – Continued

The amortized cost and fair value of investment securities, by contractual maturity, at December 31, 2014 are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.


(dollars in thousands)	Available-for-Sale								Held-to-Maturity
	Amortized Cost				Fair				Carrying Value				Fair
					Value								Value
Due in one year or less	$	4,727			$	4,891			$	908			$	916

Due after one through five years	60,060				64,729				20,114				20,298

Due after five through ten years	151,872				157,267				231,023				239,890

Due after ten years	1,294,226				1,298,022				668,997				688,831

Marketable equity securities	3,583				5,752				—				—

Total	$	1,514,468			$	1,530,661			$	921,042			$	949,935


Evaluation of Impairment of Securities

The Company did not record any other-than-temporary impairment ("OTTI") losses for the years ended December 31, 2014 and 2013.

As of December 31, 2014 and 2013, accumulated other comprehensive income does not include any impairment related charges for the non-credit-related components of OTTI.

The majority of the investment portfolio is comprised of U.S. Government Agency securities (mortgage-backed and collateralized mortgage obligations) and state and municipal bonds. For the investment securities in an unrealized loss position, the Company has concluded, based on its analysis, that the unrealized losses are primarily caused by the movement of interest rates, and the contractual terms of these investments do not permit the issuer to settle the securities at a price less than the par value of the investment.

At December 31, 2014, gross unrealized losses totaled $11.1 million, and the gross unrealized losses of securities in an unrealized loss position for twelve months or longer totaled $9.3 million, of which $8.8 million is attributable to agency mortgage-backed securities and collateralized mortgage obligations and $0.3 million is attributable to corporate securities and other. The Company evaluates a variety of factors in concluding whether securities are other-than-temporarily impaired. These factors include, but are not limited to, the type and purpose of the bond, the underlying rating of the bond issuer, and the presence of credit enhancements (i.e. state guarantees, municipal bond insurance, collateral requirements, etc.). As a result of its review and considering the attributes of the individual securities, the Company concluded that the securities were not other-than-temporarily impaired.

Because the Company does not intend to sell these investments and it is not more likely than not it will be required to sell these investments before a recovery of carrying value, which may be maturity, the Company does not consider the securities in an unrealized loss position for twelve months or longer to be other-than-temporarily impaired.

Other securities on the Company’s consolidated balance sheet totaled $67.5 million and $63.7 million as of December 31, 2014 and December 31, 2013, respectively. The balance includes Federal Loan Home Bank ("FHLB") of Pittsburgh stock and Federal Reserve Bank stock. These securities lack a market, and as such they are carried at par/cost since their fair value is not readily determinable. The Company evaluates, and will continue to evaluate, these securities for impairment each reporting period and has concluded the carrying value of these securities is not impaired. During 2014, the Company purchased an additional $3.8 million, net, of capital stock from the FHLB of Pittsburgh at par/cost. Also, during 2014 and 2013 the Company received and recorded dividends on its FHLB stock.

LOANS

LOANS	12 Months Ended
	Dec. 31, 2014
Loans and Leases Receivable Disclosure [Abstract]
LOANS	. LOANS

	The following table summarizes loans outstanding, net of unearned income:


	December 31, 2014

	(dollars in thousands)	Originated Loans				Acquired Loans			Total
	Commercial and industrial	$	2,548,438			$	51,429		$	2,599,867


	CRE - permanent	1,092,006				137,312			1,229,318

	CRE - construction	196,554				6,988			203,542

	Commercial real estate	1,288,560				144,300			1,432,860


	Residential mortgages	654,617				253,740			908,357

	Home equity	783,248				130,582			913,830

	All other consumer	287,224				141			287,365

	Consumer	1,725,089				384,463			2,109,552


	Loans	$	5,562,087			$	580,192		$	6,142,279


	The carrying amount of acquired loans at December 31, 2014 totaled $580 million, including $7.6 million of loans acquired with deteriorated credit quality, or purchased credit-impaired ("PCI") loans. PCI loans are accounted for in accordance with ASC 310-30. The Company continues to evaluate the credit performance of the PCI loan portfolio and its potential resolution, which may include individual and/or bulk loan settlements.

	The following table reflects amounts at acquisition for PCI loans:


	(dollars in thousands)	As of October 24, 2014
	Contractually required principal cash flows at acquisition	$	13,807

	Contractually required interest cash flows at acquisition	4,637

	Total contractually required cash flows at acquisition	18,444

	Contractually required principal cash flows not expected to be collected	(6,161		)
	Contractually required interest cash flows not expected to be collected	(2,949		)
	Total contractually required cash flows not expected to be collected	(9,110		)
	Expected cash flows at acquisition	9,334

	Accretable yield	(1,688		)
	Fair value of acquired loans	$	7,646


	The following table provides a summary of the change in accretable yield for PCI loans:


	(dollars in thousands)	Year Ended December 31, 2014
	Accretable yield, beginning balance	$	—

	Acquisition of impaired loans	1,688

	Accretable yield amortized to interest income	(140		)
	Reclassification from non-accretable difference	—

	Accretable yield, end of period	$	1,548


The fair value of acquired non-impaired loans was $588 million as of the acquisition date of October 24, 2014, inclusive of a net fair value adjustment of $5.0 million, which includes a $9.9 million credit adjustment, and will be accreted to interest income over the remaining life of the related portfolio. At December 31, 2014, the remaining balance of the fair value adjustment was $4.8 million.


5. LOANS - Continued

The following tables present classifications for originated loans:



December 31, 2014	Performing										Non-Performing
(dollars in thousands)	Pass Rated				Special Mention			Classified						Total
Commercial and industrial	$	2,431,251			$	24,129		$	70,765		$	22,293		$	2,548,438


CRE - permanent	1,065,916				4,351			13,307			8,432			1,092,006

CRE - construction	182,554				701			5,186			8,113			196,554

Commercial real estate	1,248,470				5,052			18,493			16,545			1,288,560


Residential mortgages	640,344				—			314			13,959			654,617

Home equity	778,611				—			335			4,302			783,248

All other consumer	280,975				—			4,256			1,993			287,224

Consumer	1,699,930				—			4,905			20,254			1,725,089


Originated loans	$	5,379,651			$	29,181		$	94,163		$	59,092		$	5,562,087


Percent of originated loans	96.73		%		0.52		%	1.69		%	1.06		%	100		%

December 31, 2013	Performing										Non-Performing

(dollars in thousands)	Pass Rated				Special Mention			Classified						Total
Commercial and industrial	$	2,327,344			$	38,873		$	79,179		$	15,268		$	2,460,664


CRE - permanent	944,589				9,191			36,272			4,786			994,838

CRE - construction	167,710				2,962			15,534			12,128			198,334

Commercial real estate	1,112,299				12,153			51,806			16,914			1,193,172


Residential mortgages	636,829				—			2,243			13,153			652,225

Home equity	757,064				—			137			5,407			762,608

All other consumer	256,957				160			5,633			1,849			264,599

Consumer	1,650,850				160			8,013			20,409			1,679,432


Loans	$	5,090,493			$	51,186		$	138,998		$	52,591		$	5,333,268


Percent of loans	95.45		%		0.96		%	2.6		%	0.99		%	100		%

Loans include overdrafts of $1.0 million at December 31, 2014 and $1.1 million at December 31, 2013.

Unamortized loan origination costs, net of fees, were $7.2 million and $5.8 million at December 31, 2014 and 2013, respectively, and are included in the stated balance of loans on the Company's balance sheets.




5. LOANS - Continued

The following tables present classifications for acquired loans:



December 31, 2014	Performing
(dollars in thousands)	Pass Rated				Special Mention			Classified			PCI			Total
Commercial and industrial	$	49,091			$	697		$	418		$	1,223		$	51,429


CRE - permanent	122,952				7,840			1,409			5,111			137,312

CRE - construction	6,931				—			—			57			6,988

Commercial real estate	129,883				7,840			1,409			5,168			144,300


Residential mortgages	252,454				—			31			1,255			253,740

Home equity	130,552				—			30			—			130,582

All other consumer	141				—			—			—			141

Consumer	383,147				—			61			1,255			384,463


Acquired loans	$	562,121			$	8,537		$	1,888		$	7,646		$	580,192


Percent of acquired loans	96.88		%		1.47		%	0.33		%	1.32		%	100		%

The Company did not have any acquired loans at December 31, 2013.

5. LOANS - Continued

The following table represents the details for past due loans:



December 31, 2014	Past Due and Still Accruing													Accruing Current Balances			PCI Loans			Non-Accrual			Total Balances
(dollars in thousands)	30-59 Days				60-89 Days			90 Days or			Total									Balances (l)
								More (k)
Commercial and industrial	$	738			$	369		$	137		$	1,244		$	2,575,469		$	1,223		$	21,931		$	2,599,867


CRE - permanent	2,052				286			57			2,395			1,213,897			5,111			7,915			1,229,318

CRE - construction	425				—			—			425			194,947			57			8,113			203,542

Commercial real estate	2,477				286			57			2,820			1,408,844			5,168			16,028			1,432,860


Residential mortgages	6,013				1,363			304			7,680			891,716			1,255			7,706			908,357

Home equity	4,596				579			365			5,540			904,864			—			3,426			913,830

All other consumer	3,039				657			1,320			5,016			280,603			—			1,746			287,365

Consumer	13,648				2,599			1,989			18,236			2,077,183			1,255			12,878			2,109,552


Loans	$	16,863			$	3,254		$	2,183		$	22,300		$	6,061,496		$	7,646		$	50,837		$	6,142,279


Percent of loans	0.27		%		0.05		%	0.04		%	0.36		%				0.12		%	0.83		%


December 31, 2013	Past Due and Still Accruing													Accruing Current Balances			PCI Loans			Non-Accrual
(dollars in thousands)	30-59 Days				60-89 Days			90 Days or More (k)			Total									Balances (l)			Total Balances
Commercial and industrial	$	3,362			$	1,520		$	11		$	4,893		$	2,440,836		$	—		$	14,935		$	2,460,664


CRE - permanent	6,191				181			—			6,372			984,208			—			4,258			994,838

CRE - construction	373				—			—			373			185,833			—			12,128			198,334

Commercial real estate	6,564				181			—			6,745			1,170,041			—			16,386			1,193,172


Residential mortgages	4,509				774			2,197			7,480			637,708			—			7,037			652,225

Home equity	4,383				1,101			140			5,624			752,197			—			4,787			762,608

All other consumer	2,761				814			1,118			4,693			258,175			—			1,731			264,599

Consumer	11,653				2,689			3,455			17,797			1,648,080			—			13,555			1,679,432


Loans	$	21,579			$	4,390		$	3,466		$	29,435		$	5,258,957		$	—		$	44,876		$	5,333,268


Percent of loans	0.4		%		0.08		%	0.07		%	0.55		%							0.84		%


(k) Loans 90 days or more past due remain on accrual status if they are well secured and collection of all principal and interest is probable.
(l) At December 31, 2014, non-accrual balances included troubled debt restructurings of $14.0 million of commercial real estate loans, $8.2 million of commercial and industrial loans, and $3.4 million of consumer loans. At December 31, 2013, non-accrual balances included troubled debt restructurings of $6.5 million of commercial real estate loans, $7.7 million of commercial and industrial loans, and $3.0 million of consumer loans.

Changes in the allowance for loan losses are summarized as follows:


(dollars in thousands)	Year Ended December 31,
	2014				2013			2012
Beginning allowance	$	96,367			$	110,955		$	126,640

Provision for loan losses	5,751				5,250			8,000

Recoveries	5,578				5,155			4,813

Charge-offs	(17,021		)		(24,993		)	(28,498		)
Net Charge-offs	(11,443		)		(19,838		)	(23,685		)
Ending allowance	$	90,675			$	96,367		$	110,955



5. LOANS - Continued

Additional details for changes in the allowance for loan losses by loan portfolio for originated loans are as follows:


31-Dec-14

(dollars in thousands)	Commercial and Industrial (m)				Commercial Real Estate (n)			Consumer (o)			Unallocated			Total
Allowance for loan losses:

Beginning balance	$	41,288			$	22,653		$	21,478		$	10,948		$	96,367

Charge-offs	(5,006		)		(2,746		)	(9,269		)	—			(17,021		)

Recoveries	2,325				1,136			2,117			—			5,578

Provision	1,375				(2,347		)	7,064			(341		)	5,751

Ending balance	$	39,982			$	18,696		$	21,390		$	10,607		$	90,675

Allowance for loan losses:

Individually evaluated for impairment	$	7,165			$	3,906		$	1,998		$	—		$	13,069

Collectively evaluated for impairment	32,817				14,790			19,392			10,607			77,606

Total allowance for loan losses	$	39,982			$	18,696		$	21,390		$	10,607		$	90,675

Originated loans:

Individually evaluated for impairment	$	22,384			$	19,295		$	20,298		$	—		$	61,977

Collectively evaluated for impairment	2,526,054				1,269,265			1,704,791			—			5,500,110

Total originated loans	$	2,548,438			$	1,288,560		$	1,725,089		$	—		$	5,562,087


31-Dec-13

(dollars in thousands)	Commercial and Industrial (m)				Commercial Real Estate (n)			Consumer (o)			Unallocated			Total
Allowance for loan losses:

Beginning balance	$	46,151			$	29,295		$	23,101		$	12,408		$	110,955

Charge-offs	(14,164		)		(2,421		)	(8,408		)	—			(24,993		)

Recoveries	2,014				1,142			1,999			—			5,155

Provision	7,287				(5,363		)	4,786			(1,460		)	5,250

Ending balance	$	41,288			$	22,653		$	21,478		$	10,948		$	96,367

Allowance for loan losses:

Individually evaluated for impairment	$	3,997			$	2,487		$	1,820		$	—		$	8,304

Collectively evaluated for impairment	37,291				20,166			19,658			10,948			88,063

Total allowance for loan losses	$	41,288			$	22,653		$	21,478		$	10,948		$	96,367

Originated loans:

Individually evaluated for impairment	$	15,268			$	21,995		$	20,453		$	—		$	57,716

Collectively evaluated for impairment	2,445,396				1,171,177			1,658,979			—			5,275,552

Total originated loans	$	2,460,664			$	1,193,172		$	1,679,432		$	—		$	5,333,268


(m) Commercial includes all C&I loans, including those secured by real estate.
(n) CRE is defined as loans secured by non-owner occupied real estate which have a primary source of repayment of third-party rental income or the sale of the property securing the loan.
(o) Consumer loans include direct consumer loans, indirect consumer loans, consumer lines of credit, and overdrafts.

Subsequent to the acquisition date, the methods utilized to estimate the required allowance for loan losses for acquired non-impaired loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance exceeds the remaining fair value adjustment. The present value of any decreases in expected cash flows after the acquisition date of PCI loans will generally result in an impairment charge recorded as a provision for loan losses, resulting in an increase to the allowance. At December 31, 2014, there was no allowance recorded for acquired loans.







5. LOANS - Continued

Impaired loan details are as follows and exclude loans acquired with deteriorated credit quality:


December 31, 2014
	Recorded Investment
(dollars in thousands)	With Related Allowance				Without Related			Total			Life-to-Date Charge-Offs			Total Unpaid Balances			Related Allowance
					Allowance
Commercial and industrial	$	17,343			$	5,041		$	22,384		$	3,981		$	26,365		$	7,165


CRE - permanent	9,062				2,120			11,182			7,821			19,003			2,574

CRE - construction	7,585				528			8,113			970			9,083			1,332

Commercial real estate	16,647				2,648			19,295			8,791			28,086			3,906


Residential mortgages	5,894				8,109			14,003			457			14,460			1,503

Home equity	850				3,452			4,302			436			4,738			295

All other consumer	397				1,596			1,993			—			1,993			200

Consumer	7,141				13,157			20,298			893			21,191			1,998


Total	$	41,131			$	20,846		$	61,977		$	13,665		$	75,642		$	13,069


December 31, 2013

	Recorded Investment
(dollars in thousands)	With Related Allowance				Without Related Allowance			Total			Life-to-Date Charge-Offs			Total Unpaid Balances			Related Allowance
Commercial and industrial	$	8,457			$	6,811		$	15,268		$	5,599		$	20,867		$	3,997


CRE - permanent	5,995				3,872			9,867			6,441			16,308			1,073

CRE - construction	9,729				2,399			12,128			6,633			18,761			1,414

Commercial real estate	15,724				6,271			21,995			13,074			35,069			2,487


Residential mortgages	6,088				7,109			13,197			800			13,997			1,589

Home equity	609				4,798			5,407			515			5,922			203

All other consumer	118				1,731			1,849			61			1,910			28

Consumer	6,815				13,638			20,453			1,376			21,829			1,820


Total	$	30,996			$	26,720		$	57,716		$	20,049		$	77,765		$	8,304




5. LOANS - Continued

Additional impaired loan details are as follow and exclude PCI loans:


	December 31,
(dollars in thousands)	2014							2013						2012
	Average Recorded				Interest Income			Average Recorded			Interest Income			Average Recorded			Interest Income
	Investment				Recognized (p)			Investment			Recognized (p)			Investment			Recognized (p)
Commercial and industrial	$	12,792			$	17		$	25,838		$	77		$	31,392		$	12


CRE - permanent	7,720				24			9,584			31			7,352			215

CRE - construction	9,503				—			7,320			70			9,008			—

Commercial real estate	17,223				24			16,904			101			16,360			215


Residential mortgages	13,779				131			11,267			105			8,111			64

Home equity	4,845				14			4,994			11			3,507			8

All other consumer	1,877				13			1,758			1			1,987			—

Consumer	20,501				158			18,019			117			13,605			72


Total	$	50,516			$	199		$	60,761		$	295		$	61,357		$	299


(p) Interest income recognized for the years ended December 31, 2014, 2013, and 2012, primarily represent amounts earned on accruing TDRs.

The following table presents details of the Company's loans which experienced a troubled debt restructuring and are performing according to the modified terms. The Company's restructured loans are included within non-performing loans and impaired loans in the preceding tables.


(dollars in thousands)	December 31,
	2014				2013
Commercial and industrial	$	362			$	333

CRE - permanent	517				528

Residential mortgages	6,253				6,116

Home equity	876				620

All other consumer	247				118

Total restructured loans	$	8,255			$	7,715


Undrawn commitments to lend on restructured loans	$	—			$	—


The Company modifies loans to consumers with residential mortgages and home equity loans utilizing a program modeled after government assisted programs in order to help customers who are experiencing financial difficulty and are in jeopardy of losing their homes to foreclosure.

Other real estate owned and repossessed assets are as follows:


(dollars in thousands)	December 31,
	2014				2013
Acquired other real estate owned	$	3,675			$	—

Other real estate owned	753				892

Repossessed assets	439				386

Total other real estate and repossessed assets	$	4,867			$	1,278

PREMISES_AND_EQUIPMENT

PREMISES AND EQUIPMENT	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
PREMISES AND EQUIPMENT	. PREMISES AND EQUIPMENT

	Major classifications of premises and equipment are summarized as follows:



	(dollars in thousands)		Estimated		Year Ended December 31,
			Useful Lives		2014			2013
	Land		Indefinite		$	17,176		$	14,739

	Buildings		5 to 40 years		105,080			101,626

	Equipment		3 to 10 years		122,212			111,670

	Leasehold improvements		2 to 20 years		28,064			10,905

	Equipment leased to customers		Economic life		2,828			3,796

	Total premises and equipment				275,360			242,736

	Accumulated depreciation				(158,946		)	(146,504		)
	Premises and equipment, net				$	116,414		$	96,232


	The net increase of $20.2 million in premises and equipment from prior year period is primarily attributable to the net increase of $15.3 million and $2.6 million for leasehold improvements related to the corporate headquarters located in Allentown, Pennsylvania and the Reading Area Business Center, respectively, as well as the fair value of facilities acquired from TF Financial of $10.9 million. Depreciation expense of $9.5 million, $9.1 million, and $9.7 million was included in premises and equipment expense in the consolidated statements of income for the years ended December 31, 2014, 2013 and 2012, respectively.

	Lease Commitments

	Future minimum payments under non-cancellable operating leases are due as follows:



	(dollars in thousands)
		Year Ended December 31,
		2015		$	7,218

		2016		6,619

		2017		5,985

		2018		5,669

		2019		5,100

		Thereafter		28,968

		Total		$	59,559


	Lease commitments of $59.6 million reflect a reduction in the future minimum lease payments of $1.1 million related to facilities impacted by the restructuring plan announced in the fourth quarter of 2013.

	Total rental expense of $8.6 million, $8.5 million, and $8.1 million was included in premises and equipment expense in the consolidated statements of income for the years ended December 31, 2014, 2013 and 2012, respectively.

GOODWILL_AND_OTHER_INTANGIBLE_

GOODWILL AND OTHER INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	. GOODWILL AND OTHER INTANGIBLE ASSETS

	The table below provides a roll-forward of the components of the Company’s goodwill for the year ended December 31, 2014.


			Year Ended											Year Ended
	(dollars in thousands)		December 31,											December 31,
			2013				Acquired			Impairment		Disposition		2014
	Goodwill		$	512,268			$	43,965		$	—	$	—	$	556,233

	Accumulated impairment		(253,989		)		—			—		—		(253,989		)

	Goodwill, net		$	258,279			$	43,965		$	—	$	—	$	302,244


	During the second quarter, the Company performed its annual qualitative assessment of goodwill and determined that it is not more likely than not that the fair value of its reporting units are less than their carrying amounts. There were no indicators of impairment subsequent to the annual assessment for which an interim impairment test was required.

	The Company’s business segments are its reporting units which are “Community Banking” and “Other” for purposes of the goodwill impairment analysis. As of December 31, 2014, the carrying value of goodwill assigned to the Community Banking segment was $279 million and the carrying value of goodwill assigned to the Other segment was $23 million. During the fourth quarter of 2014, the Company recorded $44 million of goodwill associated with the acquisition of TF Financial , all of which is included in the "Community Banking" reporting unit.

	Due to the acquisition of TF Financial during the fourth quarter of 2014, the Company recorded a core deposit intangible asset of $4.8 million, which is scheduled to be amortized on an accelerated basis over its estimated useful life of 10 years.

	The table below presents the Company’s core deposit intangibles and other intangible assets and the related amortization expense.



	(dollars in thousands)	As of and for the Year Ended December 31,
		2014				2013			2012
	Core deposit and other intangible assets	$	8,757			$	6,854		$	10,614

	Amortization expense	2,856				3,761			5,156


	At December 31, 2014, the Company's core deposit and other intangible assets were scheduled to amortize over the succeeding five fiscal years as follows:


	(dollars in thousands)	2015	$	2,656

		2016	1,967

		2017	1,380

		2018	770

		2019	581

DEPOSITS

DEPOSITS	12 Months Ended
	Dec. 31, 2014
Deposits [Abstract]
DEPOSITS	. DEPOSITS



		As of and for the Year Ended December 31,
	(dollars in thousands)	2014						2013
		Balance				Interest Expense		Balance		Interest Expense
	NOW accounts	$	1,913,399			$	2,561	$	1,655,425	$	2,310

	Money market accounts	1,827,233				3,716		1,670,035		4,460

	Savings accounts	678,294				563		526,576		546

	Time deposits less than $100	891,964				8,361		896,700		10,954

	Time deposits $100 or greater	333,697				3,342		353,791		4,109

	Total interest bearing deposits	5,644,587				18,543		5,102,527		22,379

	Non-interest bearing deposits	1,085,158				—		970,051		—

	Total deposits	$	6,729,745			$	18,543	$	6,072,578	$	22,379


	At December 31, 2014, time deposits were scheduled to mature as follows:



	(dollars in thousands)	2015		$	740,514

		2016		176,328

		2017		107,054

		2018		47,552

		2019		153,926

		Thereafter		287

		Total		$	1,225,661

BORROWINGS

BORROWINGS	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
BORROWINGS	. BORROWINGS



		As of December 31,
	(dollars in thousands)	2014				2013
	Customer repurchase agreements	607,705				551,736

	Repurchase agreements	—				50,000

	Federal Home Loan Bank advances	910,378				603,232

	Senior long-term debt	125,000				—

	Subordinated debentures	77,321				77,321

	Total borrowings and other debt obligations	$	1,720,404			$	1,282,289



	9. BORROWINGS - Continued

	The Company's borrowings include short-term and long-term debt in the form of customer repurchase agreements, repurchase agreements, FHLB advances, senior long-term debt and subordinated debentures. Customer repurchase agreements are over-night instruments and have investment securities pledged as collateral. FHLB advances are collateralized by certain first mortgage loans, investment securities and also require the Company to purchase FHLB capital stock, which is included within other securities on the consolidated balance sheet.

	FHLB advances mature as follows:



	(dollars in thousands)		Federal Home Loan
			Bank Advances
		2015	$	780,000

		2016	9,473

		2017	65,702

		2018	6,933

		2019	38,224

		Thereafter	10,046

		Total	$	910,378


	On September 16, 2014, the Company issued $125 million aggregate principal amount of unsecured, fixed rate senior
	notes with a maturity date of September 30, 2024. The notes bear an annual fixed interest rate of 4.25%, and are payable, as to
	interest, on March 30th and September 30th of each year, commencing March 30, 2015. The Company incurred $1.4 million of costs related to the issuance of the notes. At December 31, 2014, the remaining unamortized costs were $1.4 million and will amortize over the remaining life of the notes.

	The Company has 4 established statutory business Trusts: NPB Capital Trust III, NPB Capital Trust IV, NPB Capital Trust V and NPB Capital Trust VI (“Trusts”). The Company owns all of the common capital securities of the Trusts. The Trusts issued preferred capital securities to investors and invested the proceeds in junior subordinated debentures issued by the Company. These debentures are the sole assets of the Trusts.

	Details of the Company’s obligations to the Trusts as of December 31, 2014 are as follows:



	Trusts		Principal		Issued		Maturity	Interest Rate
	NPB Capital Trust III		$20.6 Million		February 20, 2004		April 23, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust IV		$20.6 Million		March 25, 2004		April 7, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust V		$20.6 Million		April 7, 2004		April 7, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust VI		$15.4 Million		January 19, 2006		March 15, 2036	3 mo. LIBOR + 1.38% margin

	All of the Trusts can currently be called in whole or in part.

	All the foregoing junior subordinated debentures qualify under the risk-based capital guidelines of the Federal Reserve as Tier 1 capital, subject to certain limitations. In each case, the debentures are callable by National Penn, subject to any required regulatory approvals, at par, in whole or in part, at any time after five years from issuance. In each case, the Company's obligations under the junior subordinated debentures and related documents, taken together, constitute a full, irrevocable and unconditional guarantee on a subordinated basis by the Company of the obligations of the Trusts under the preferred securities.

CONTINGENCIES

CONTINGENCIES	12 Months Ended
CONTINGENCIES	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES	. CONTINGENCIES

	In the normal course of business, the Company is named as a defendant in various lawsuits. Accruals are established for legal proceedings when information related to the loss contingencies indicates that a loss settlement is both probable and can be estimated. At December 31, 2014, the Company did not have material amounts accrued for legal proceedings as it is the opinion of management that the resolution of such suits will not have a material effect on the financial position or results of operations of the Company. The outcome of legal proceedings is inherently uncertain and, as a result, the amounts recorded may not represent the Company's ultimate loss upon resolution. Thus, the Company’s exposure and ultimate losses may be higher or lower than amounts accrued or estimated as reasonably possible exposure.

ACCUMULATED_OTHER_COMPREHENSIV

ACCUMULATED OTHER COMPREHENSIVE INCOME	12 Months Ended
	Dec. 31, 2014
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
COMPREHENSIVE INCOME	11. ACCUMULATED OTHER COMPREHENSIVE INCOME

	Accumulated other comprehensive income (loss) was comprised of the following components, after tax:



	(dollars in thousands)	December 31,
		2014			2013			2012
	Unrealized gains (losses) on investment securities	$	8,236		$	(11,691	)	$	41,058

	Pension	(19,227		)	(9,466		)	(16,729		)
	Total accumulated other comprehensive (loss) income	$	(10,991	)	$	(21,157	)	$	24,329

EQUITY

EQUITY	12 Months Ended
EQUITY	Dec. 31, 2014
Equity [Abstract]
EQUITY	12. SHAREHOLDERS’ EQUITY

	Treasury Stock

	In the fourth quarter of 2013, the Board of Directors authorized the repurchase of up to five percent (5%) of the outstanding shares of National Penn common stock during 2014. On January 28, 2014, the Company completed the repurchase of 7 million shares, of the 25.9 million outstanding shares, which Warburg Pincus held in NPBC common stock. In the fourth quarter of 2014, the Company additionally completed a series of repurchases that totaled approximately 0.3 million shares, or $3.0 million, from the open market.

	On January 22, 2015, the Company announced that the Board of Directors approved a common share repurchase plan of $125 million. The authorization of this repurchase plan superseded all pre-existing share repurchase plans. On February 6, 2015, the Company completed the repurchase of $75 million of common stock owned by Warburg Pincus. Based on a share price of $10.25, the repurchase aggregated approximately 7.3 million shares or approximately 40% of the outstanding common shares owned by Warburg Pincus. Warburg Pincus maintains an 8.3% position in National Penn.

	Dividend Reinvestment and Stock Purchase Plan (“DRP”)

	The Company has a dividend reinvestment and stock purchase plan that provides a 10% discount on dividends reinvested as well as new cash purchases made under the terms of the Plan. The Plan was amended on June 18, 2009 and allows voluntary cash contributions in amounts not to exceed $10,000.

	Cash Dividends

	In 2014, the Company declared and paid cash dividends of $0.41 per share, or $58.0 million, to common shareholders.

	In 2013, the Company declared and paid cash dividends of $0.10 per share for each of the last three quarters of 2013, totaling $43.7 million. The Company paid an additional $0.10 per share, or $15.0 million, cash dividend in the fourth quarter of 2012 in lieu of a first quarter cash dividend in 2013.

BALANCE_SHEET_OFFSETTING

BALANCE SHEET OFFSETTING	12 Months Ended
	Dec. 31, 2014
Balance Sheet Offsetting [Abstract]
Balance Sheet Offsetting Disclosure [Text Block]	14. BALANCE SHEET OFFSETTING

	Certain financial instrument related assets and liabilities may be eligible for offset on the consolidated balance sheet because they are subject to master netting agreements or similar agreements. However, the Company does not elect to offset such arrangements on the consolidated financial statements.

	The Company enters into interest rate swap agreements with customers and financial institution counterparties. For additional detail regarding interest rate swap agreements refer to Footnote 13 within this section. In the event of default on, or termination of, any one contract, both parties have the right to net settle multiple contracts. Also, certain interest rate swap agreements may require the Company to receive or pledge cash collateral based on the contract provisions.

	The Company also enters into agreements to sell securities subject to an obligation to repurchase the same or similar securities, referred to as repurchase agreements on the consolidated balance sheet. Under these agreements, the Company may transfer legal control over the assets but still retain effective control through an agreement that both entitles and obligates the Company to repurchase the assets. The obligation to repurchase the securities is reflected as a liability in the Company’s consolidated balance sheet, while the securities underlying the repurchase agreements remain in the respective investment securities account, therefore there is no offsetting or netting of the investment securities assets with the repurchase agreement liabilities.

	The following table presents information about financial instruments that are eligible for offset as of December 31, 2014 and December 31, 2013:



	31-Dec-14
	(dollars in thousands)
	Assets	Gross Amount			Gross Amounts Offset in the Balance Sheet				Net Amounts Presented in the Balance Sheet
	Derivatives - Interest Rate Swaps	$	546		$	—			$	546


	Liabilities
	Derivatives - Interest Rate Swaps	$	24,786		$	—			$	24,786


	December 31, 2013
	(dollars in thousands)
	Assets	Gross Amount			Gross Amounts Offset in the Balance Sheet				Net Amounts Presented in the Balance Sheet
	Derivatives - Interest Rate Swaps	$	5,718		$	—			$	5,718


	Liabilities
	Derivatives - Interest Rate Swaps	$	15,906		$	—			$	15,906

	Repurchase Agreements	50,000			—				50,000

	Total Liabilities	$	65,906		$	—			$	65,906
















	14. BALANCE SHEET OFFSETTING - Continued

	The following table represents a reconciliation of the net amounts of interest rate swap derivative assets and liabilities presented in the balance sheet to the net amounts that would result in the event of offset, by counterparty, as of December 31, 2014 and December 31, 2013:



	December 31, 2014
	(dollars in thousands)				Gross Amounts Not Offset in the Balance Sheet
	Assets	Net Amounts Presented in the Balance Sheet			Financial Instruments (q)				Cash Collateral (r)			Net Amount
	Counterparty A	$	536		$	(536	)		$	—		$	—

	All Other Counterparties	10			(10		)		—			—

	Total Assets	$	546		$	(546	)		$	—		$	—


Liabilities
Counterparty A	$	10,142		$	(536	)		$	(9,614	)	$	(8	)

Counterparty B	7,378			—				(7,140		)	238

Counterparty C	4,789			—				(4,590		)	199

All Other Counterparties	2,477			(10		)		(2,481		)	(14		)

Total Liabilities	$	24,786		$	(546	)		$	(23,825	)	$	415


December 31, 2013
(dollars in thousands)				Gross Amounts Not Offset in the Balance Sheet
Assets	Net Amounts Presented in the Balance Sheet			Financial Instruments (q)				Cash Collateral (r)			Net Amount
Counterparty A	$	4,996		$	(4,996	)		$	—		$	—

All Other Counterparties	722			(328		)		(300		)	94

Total Assets	$	5,718		$	(5,324	)		$	(300	)	$	94


Liabilities
Counterparty A	$	13,111		$	(4,996	)		$	(8,545	)	$	(430	)

All Other Counterparties	2,795			(328		)		(1,960		)	507

Total Liabilities	$	15,906		$	(5,324	)		$	(10,505	)	$	77


(q) For interest rate swap assets, amounts represent any derivative liability fair values that could be offset in the event of default. For interest rate swap liabilities, amounts represent any derivative asset fair values that could be offset in the event of default.
(r) Amounts represent cash collateral received or posted on interest rate swap transactions with financial institution counterparties.

FINANCIAL_INSTRUMENTS_WITH_OFF

FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK	12 Months Ended
FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK	13. FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK

	The notional amount of financial instruments whose contract amounts represent credit risk:


	(dollars in thousands)	As of December 31,
		2014				2013
	Commitments to extend credit	$	1,960,419			$	1,769,135
	Commitments to extend credit	$	1,960,419			$	1,769,135
	Commitments to fund mortgages	27,599				22,242
	Commitments to fund mortgages	27,599				22,242
	Commitments to sell mortgages to investors	20,228				15,349
	Commitments to sell mortgages to investors	20,228				15,349
	Letters of credit	152,714				142,246
	Letters of credit	152,714				142,246

	Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing and similar transactions. The Company also obtains collateral, such as real estate or liens on their customer’s assets depending on the customer, for these types of commitments. The credit risk involved in issuing letters of credit is essentially the same as that involved in lending to customers, however, since the Company does not anticipate having to perform on material amounts of standby letters of credit, the risk is estimated to be substantially less than the contractual amount of commitments outstanding. Fair values of letters of credit were not considered to be material as of December 31, 2014 and 2013.

	The Company enters into interest rate lock commitments with its mortgage loan customers, a portion of which are intended for sale in the future. The portion of the commitments that are intended for sale in the future are derivatives and, as such, are reported on the consolidated balance sheet at their estimated fair value. To hedge the fair value risk associated with changing interest rates on these commitments, the Company enters into forward sale commitments to sell the closed loans to investors. These hedges are economic hedges and are not designated in hedging relationships. The forward sale commitments to investors are also derivatives and are recorded on the consolidated balance sheet at their estimated fair value.

	Summary information regarding interest rate swap derivative positions which were not designed in hedging relationships are as follows:


	(dollars in thousands)				Notional							Receive		Pay		Life
		Positions			Amount			Asset		Liability		Rate		Rate		(Years)
	December 31, 2014
	Receive fixed - pay floating interest rate swaps	165			$	596,252		$	24,786	$	546	4.64	%	2.28	%	5.89
	Receive fixed - pay floating interest rate swaps	165			$	596,252		$	24,786	$	546	4.64	%	2.28	%	5.89
	Pay fixed - receive floating interest rate swaps	165			596,252			546		24,786		2.28	%	4.64	%	5.89
	Pay fixed - receive floating interest rate swaps	165			596,252			546		24,786		2.28	%	4.64	%	5.89
	Interest rate swaps				$	1,192,504		$	25,332	$	25,332	3.46	%	3.46	%	5.89
	Interest rate swaps				$	1,192,504		$	25,332	$	25,332	3.46	%	3.46	%	5.89

	December 31, 2013
	December 31, 2013
	Receive fixed - pay floating interest rate swaps	148			$	502,833		$	15,906	$	5,718	4.58	%	2.31	%	5.96
	Receive fixed - pay floating interest rate swaps	148			$	502,833		$	15,906	$	5,718	4.58	%	2.31	%	5.96
	Pay fixed - receive floating interest rate swaps	148			502,833			5,718		15,906		2.31	%	4.58	%	5.96
	Pay fixed - receive floating interest rate swaps	148			502,833			5,718		15,906		2.31	%	4.58	%	5.96
	Interest rate swaps				$	1,005,666		$	21,624	$	21,624	3.45	%	3.45	%	5.96
	Interest rate swaps				$	1,005,666		$	21,624	$	21,624	3.45	%	3.45	%	5.96

	The Company enters into interest rate swaps (“swaps”) to facilitate customer transactions and meet their financing needs. These swaps are considered derivatives but are not designated in hedging relationships. These instruments have interest rate and credit risk associated with them. In response, the Company enters into offsetting interest rate swaps with counterparties for interest rate risk management purposes. The counterparty swaps are also considered derivatives and are also not designated in hedging relationships. Changes in the fair value of the customer and counterparty swaps are recorded net in the consolidated statement of income. Because these amounts offset each other, there was no impact on other operating income in each of 2014, 2013, and 2012. For additional analysis of the fair value on interest rate swaps refer to Footnote 15 within this section.


	13. FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK - Continued

	The following summarizes the Company's derivative activity as of and for the year ended December 31, 2014, 2013, and 2012:


					Income Statement Effect
			Balance Sheet Effect at		for the Year Ended
	Derivative Instruments		December 31, 2014		December 31, 2014

	Interest rate swaps		Increase to other assets/liabilities of $25.3 million.		No net effect on other operating income from offsetting $3.7 million change.

	Other derivatives:
	Interest rate locks		Increase to other assets of less than $0.1 million.		Increase to mortgage banking income of $0.1 million.
	Forward sale commitments		Increase to other liabilities of $0.2 million.		Decrease to mortgage banking income of $0.1 million.

					Income Statement Effect
			Balance Sheet Effect at		for the Year Ended
	Derivative Instruments		December 31, 2013		December 31, 2013

Interest rate swaps		Increase to other assets/liabilities of $21.6 million.		No net effect on other operating income from offsetting $6.6 million change.

Other derivatives:
Interest rate locks		Increase to other liabilities of less than $0.1 million.		Decrease to mortgage banking income of $0.1 million.
Forward sale commitments		Increase to other liabilities of $0.1 million.		Increase to mortgage banking income of $0.3 million.

				Income Statement Effect
		Balance Sheet Effect at		for the Year Ended
Derivative Instruments		December 31, 2012		December 31, 2012

Interest rate swaps		Increase to other assets/liabilities of $28.3 million.		No net effect on other operating income from offsetting $5.7 million change.

Other derivatives:
Interest rate locks		Increase to other assets of less than $0.1 million.		Decrease to mortgage banking income of $0.6 million.
Forward sale commitments		Increase to other liabilities of $0.4 million.		Increase to mortgage banking income of $0.5 million.

The Company evaluates and establishes an estimated reserve for credit and other risks associated with off-balance-sheet positions based upon historical losses, expected performance under these arrangements and current trends in the economy. The Company recognized $0.3 million in other operating expenses within non-interest expense in the consolidated statement of income during 2014 for credit losses on off-balance-sheet exposures, as compared to zero recorded in 2013 and $0.1 million in 2012. As of December 31, 2014 and 2013 the reserve for off-balance sheet exposure was $1.1 million and $1.0 million, respectively.

FAIR_VALUE_MEASUREMENTS_AND_FA

FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS	15. FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS

	In general, fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants, which is not adjusted for transaction costs. Accounting guidelines establish a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted, quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below:

	Basis of Fair Value Measurement:

	Level 1 - Unadjusted, quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

	Level 2 - Quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; and

	Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e. supported by little or no market activity).

	A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.

	The types of instruments whose value is based on quoted market prices in active markets include most U.S. Treasury securities, liquid mortgage products, active listed equities and most money market securities. Such instruments are generally classified within Level 1 of the fair value hierarchy. The Company does not adjust the quoted price for such instruments.

	The types of instruments whose value is based on quoted prices in markets that are not active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency include most U.S. Government agency securities, state and municipal bonds, mortgage-backed securities, collateralized mortgage obligations, and corporate securities. Such instruments are generally classified within Level 2 of the fair value hierarchy and their fair values are determined as follows:


	•	The markets for U.S. Government agency securities are active, but the exact (cusip) securities owned by the Company are traded thinly or infrequently. Therefore, the price for these securities is determined by reference to transactions in securities with similar yields, maturities and other features (matrix priced).

	•	State and municipal bonds owned by the Company are traded thinly or infrequently, and as a result the fair value is estimated in reference to securities with similar yields, credit ratings, maturities, and in consideration of any prepayment assumptions obtained from market data.

	•	Collateralized mortgage obligations and mortgage-backed securities are generally unique securities whose fair value is estimated using market information for new issues and adjusting for the features of a particular security by applying assumptions for prepayments, pricing spreads, yields and credit ratings.

	•	Certain corporate securities owned by the Company are traded thinly or infrequently. Therefore, the fair value of these securities is determined by reference to transactions in other issues of these securities with similar yields and features.


	15. FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS - Continued

	Level 3 classification is for positions that are not traded in active markets or are subject to transfer restrictions. Valuations are adjusted to reflect illiquidity and/or non-transferability, and such adjustments are generally based on available market evidence. In the absence of such evidence, management’s best estimate is used. Management’s best estimate consists of both internal and external support on certain Level 3 investments. Internal cash flow models using a present value formula along with indicative exit pricing obtained from broker/dealers are used to fair value Level 3 investments. Management changes Level 3 inputs and assumptions when corroborated by evidence such as transactions in similar instruments, completed or pending third-party transactions in the underlying investment or comparable entities, subsequent rounds of financing, recapitalizations and other transactions across the capital structure, offerings in the equity or debt markets, and changes in financial ratios or cash flows. Fair values for securities classified within Level 3 are determined as follows:


	•	Certain corporate securities owned by the Company are not traded in active markets and prices for securities with similar features are unavailable. The fair value for each security is estimated in reference to benchmark transactions by security type based upon yields, credit spreads and option features.

	•	Certain marketable equity securities which are not subject to ownership restrictions but are traded thinly on exchanges or over-the-counter. As a result, prices are not available on a consistent basis from published sources, and, therefore, additional quotations from brokers may be obtained. Additionally considered indications of pricing include subsequent financing rounds or pending transactions. The reported fair value is based upon the Company’s judgment with respect to the information it is able to reliably obtain.
	The Company utilizes a third-party service provider to assist with investment security pricing. Each quarter the Company performs an independent validation of the third-party security pricing by obtaining pricing from other sources and evaluating discrepancies to established tolerances for each security type, including a review of unchanged prices. Additionally, the Company evaluates the third-party service provider's pricing results by periodically reviewing the service provider's practices and procedures.

	Interest rate swap agreements are measured by alternative pricing sources with reasonable levels of price transparency in markets that are not active. Based on the complex nature of interest rate swap agreements, the markets these instruments trade in are not as efficient and are less liquid than that of the Level 1 markets. These markets do however have comparable, observable inputs in which an alternative pricing source values these assets to arrive at a fair value. These characteristics classify interest rate swap agreements as Level 2 measurements.

	The Company has the option to measure eligible financial assets, financial liabilities and Company commitments at fair value (i.e. the fair value option), on an instrument-by-instrument basis. The election to use the fair value option is available when an entity first recognizes a financial asset or liability or upon entering into a Company commitment. Subsequent changes in fair value must be recorded in earnings. The Company has not elected to apply the fair value option to any of its financial instruments at December 31, 2014.












	15. FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS - Continued

	The following table sets forth the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis as of December 31, 2014 and December 31, 2013, by level 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.


	31-Dec-14	Total			Quoted Prices			Significant			Significant Unobservable Inputs
		Fair Value			in Active Markets for			Other Observable Inputs
					Identical Assets
	(dollars in thousands)				(Level 1)			(Level 2)			(Level 3)
	Assets
	U.S. Government agencies	$	1,007		$	—		$	1,007		$	—
	U.S. Government agencies	$	1,007		$	—		$	1,007		$	—
State and municipal bonds	68,080			—			68,080			—
State and municipal bonds	68,080			—			68,080			—
Agency mortgage-backed securities/ collateralized mortgage obligations	1,451,461			—			1,451,461			—
	1,451,461			—			1,451,461			—
Corporate securities and other	4,361			65			3,146			1,150
Corporate securities and other	4,361			65			3,146			1,150
Marketable equity securities	5,752			4,676			—			1,076
Marketable equity securities	5,752			4,676			—			1,076
Investment securities, available-for-sale	1,530,661			4,741			1,523,694			2,226
Investment securities, available-for-sale	1,530,661			4,741			1,523,694			2,226

Interest rate swap agreements	25,332			—			25,332			—
Interest rate swap agreements	25,332			—			25,332			—
Interest rate locks	30			—			30			—
Interest rate locks	30			—			30			—

Total fair value of assets	$	1,556,023		$	4,741		$	1,549,056		$	2,226
Total fair value of assets	$	1,556,023		$	4,741		$	1,549,056		$	2,226

Liabilities
Liabilities
Interest rate swap agreements	$	25,332		$	—		$	25,332		$	—
Interest rate swap agreements	$	25,332		$	—		$	25,332		$	—
Forward sale commitments	158			—			158			—
Forward sale commitments	158			—			158			—
Total fair value of liabilities	$	25,490		$	—		$	25,490		$	—
Total fair value of liabilities	$	25,490		$	—		$	25,490		$	—

31-Dec-13	Total			Quoted Prices			Significant			Significant Unobservable Inputs
	Fair Value			in Active Markets for			Other Observable Inputs
				Identical Assets
(dollars in thousands)				(Level 1)			(Level 2)			(Level 3)
Assets
Assets
U.S. Government agencies	$	990		$	—		$	990		$	—
U.S. Government agencies	$	990		$	—		$	990		$	—
State and municipal bonds	214,711			—			214,711			—
State and municipal bonds	214,711			—			214,711			—
Agency mortgage-backed securities/ collateralized mortgage obligations	1,659,180			—			1,659,180			—
	1,659,180			—			1,659,180			—
Non-agency collateralized mortgage obligations	4,258			—			4,258			—
Non-agency collateralized mortgage obligations	4,258			—			4,258			—
Corporate securities and other	9,668			61			4,922			4,685
Corporate securities and other	9,668			61			4,922			4,685
Marketable equity securities	5,300			4,241			—			1,059
Marketable equity securities	5,300			4,241			—			1,059
Investment securities, available-for-sale	1,894,107			4,302			1,884,061			5,744
Investment securities, available-for-sale	1,894,107			4,302			1,884,061			5,744

Interest rate swap agreements	21,624			—			21,624			—
Interest rate swap agreements	21,624			—			21,624			—

Total fair value of assets	$	1,915,731		$	4,302		$	1,905,685		$	5,744
Total fair value of assets	$	1,915,731		$	4,302		$	1,905,685		$	5,744

Liabilities
Liabilities
Interest rate swap agreements	$	21,624		$	—		$	21,624		$	—
Interest rate swap agreements	$	21,624		$	—		$	21,624		$	—
Forward sale commitments	84			—			84			—
Forward sale commitments	84			—			84			—
Interest rate locks	42			—			42			—
Interest rate locks	42			—			42			—
Total fair value of liabilities	$	21,750		$	—		$	21,750		$	—
Total fair value of liabilities	$	21,750		$	—		$	21,750		$	—







15. FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS - Continued

The following table presents activity for investment securities measured at fair value on a recurring basis for the year ended December 31, 2014:



(dollars in thousands)
	Beginning Balance			Gains/(Losses)			Gains/(Losses)			Purchases			Sales			Maturities/			Reclassified Securities (t)			Transfers		Ending Balance
	1-Jan-14			Included in			Included in Other									Calls/Paydowns								31-Dec-14
				Earnings (s)			Comprehensive
							Income
Level 1

Corporate securities and other	$	61		$	—		$	4		$	—		$	—		$	—		$	—		$	—	$	65
Corporate securities and other	$	61		$	—		$	4		$	—		$	—		$	—		$	—		$	—	$	65
Marketable equity securities	4,241			—			435			—			—			—			—			—		4,676
Marketable equity securities	4,241			—			435			—			—			—			—			—		4,676
Total level 1	4,302			—			439			—			—			—			—			—		4,741
Total level 1	4,302			—			439			—			—			—			—			—		4,741

Level 2
Level 2

U.S. Government agencies	990			—			17			—			—			—			—			—		1,007
U.S. Government agencies	990			—			17			—			—			—			—			—		1,007
State and municipal bonds	214,711			2,412			3,471			—			—			(20,633		)	(131,881		)	—		68,080
State and municipal bonds	214,711			2,412			3,471			—			—			(20,633		)	(131,881		)	—		68,080
Agency mortgage-backed securities/ collateralized mortgage obligations	1,659,180			(4,046		)	25,893			378,411			—			(257,337		)	(350,640		)	—		1,451,461
	1,659,180			(4,046		)	25,893			378,411			—			(257,337		)	(350,640		)	—		1,451,461
Non-agency collateralized mortgage obligations	4,258			1			(36		)	—			(2,985		)	(1,238		)	—			—		—
Non-agency collateralized mortgage obligations	4,258			1			(36		)	—			(2,985		)	(1,238		)	—			—		—
Corporate securities and other	4,922			—			235			—			—			—			(2,011		)	—		3,146
Corporate securities and other	4,922			—			235			—			—			—			(2,011		)	—		3,146
Total level 2	1,884,061			(1,633		)	29,580			378,411			(2,985		)	(279,208		)	(484,532		)	—		1,523,694
Total level 2	1,884,061			(1,633		)	29,580			378,411			(2,985		)	(279,208		)	(484,532		)	—		1,523,694

Level 3
Level 3

Corporate securities and other	4,685			2			16			—			—			—			(3,553		)	—		1,150
Corporate securities and other	4,685			2			16			—			—			—			(3,553		)	—		1,150
Marketable equity securities	1,059			—			17			—			—			—			—			—		1,076
Marketable equity securities	1,059			—			17			—			—			—			—			—		1,076
Total level 3	5,744			2			33			—			—			—			(3,553		)	—		2,226
Total level 3	5,744			2			33			—			—			—			(3,553		)	—		2,226

Total available-for-sale securities	$	1,894,107		$	(1,631	)	$	30,052		$	378,411		$	(2,985	)	$	(279,208	)	$	(488,085	)	$	—	$	1,530,661
Total available-for-sale securities	$	1,894,107		$	(1,631	)	$	30,052		$	378,411		$	(2,985	)	$	(279,208	)	$	(488,085	)	$	—	$	1,530,661

(s) Includes amortization/accretion
(t) Securities reclassified from available-for-sale to held-to-maturity at March 31, 2014. Refer to Footnote 4 for further details.

In regards to the Company's acquisition of TF Financial on October 24, 2014, the Company acquired $124 million of investment securities, of which $36.2 million were classified as available-for-sale. All acquired available-for-sale securities were sold prior to October 31, 2014, resulting in a gain of $21 thousand recognized in the consolidated statement of operations. The acquired available-for-sale securities and their related gain-on-sale are not included in the table above.

15. FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS - Continued

The following table sets forth the Company’s financial assets subject to fair value adjustments (impairment) on a non-recurring basis. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.


(dollars in thousands)	Quoted Prices			Significant			Significant Unobservable Inputs
	in Active Markets for			Other Observable Inputs
	Identical Assets
December 31, 2014	(Level 1)			(Level 2)			(Level 3)			Balance
Loans held-for-sale	$	—		$	4,178		$	—		$	4,178
Loans held-for-sale	$	—		$	4,178		$	—		$	4,178
Impaired loans, net (u)	—			—			48,908			48,908
Impaired loans, net (u)	—			—			48,908			48,908
OREO and other repossessed assets	—			—			4,867			4,867
OREO and other repossessed assets	—			—			4,867			4,867

December 31, 2013
December 31, 2013
Loans held-for-sale	$	—		$	4,951		$	—		$	4,951
Loans held-for-sale	$	—		$	4,951		$	—		$	4,951
Impaired loans, net	—			—			49,412			49,412
Impaired loans, net	—			—			49,412			49,412
OREO and other repossessed assets	—			—			1,278			1,278
OREO and other repossessed assets	—			—			1,278			1,278

(u) Excludes purchased credit impaired loans. For additional information regarding impaired loans, refer to Footnote 5.


Fair value for loans held-for-sale is estimated based upon available market data for mortgage-backed securities with similar interest rates and maturities. Lower of cost or estimated fair value write-downs recorded on loans held-for-sale were zero as of December 31, 2014 and December 31, 2013.

The recorded investment in impaired loans totaled $62.0 million with a specific reserve of $13.1 million at December 31, 2014, compared to $57.7 million with a specific reserve of $8.3 million at December 31, 2013. Fair value for impaired loans is measured primarily on the value of the collateral securing these loans, less estimated costs to sell, or the present value of estimated cash flows discounted at the loan’s original effective interest rate. Appraised values may be discounted 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.

Fair value for OREO and other repossessed assets is estimated based upon its appraised value less costs to sell. There were no additional write-downs included in OREO and other repossessed assets balances at December 31, 2014, compared to write-downs of $0.1 million at December 31, 2013.

In addition to financial instruments recorded at fair value in the Company’s financial statements, disclosure of the estimated fair value of all of an entity’s assets and liabilities considered to be financial instruments is also required. For the Company, as for most financial institutions, the majority of its assets and liabilities are considered to be financial instruments. However, certain instruments lack an available trading market as characterized by a willing buyer and willing seller engaging in an exchange transaction. Also, it is the Company’s general practice and intent to hold its financial instruments to maturity and to not engage in trading or sales activities, other than mortgage loans held-for-sale. Fair values have been estimated using data that management considered the best available and estimation methodologies deemed suitable for the pertinent category of financial instrument.


15. FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS - Continued

The estimation methodologies, resulting fair values and recorded carrying amounts are as follows:


(dollars in thousands)	December 31, 2014						December 31, 2013
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
ASSETS
Cash and cash equivalents	$	413,839		$	413,839		$	283,523		$	283,523
Cash and cash equivalents	$	413,839		$	413,839		$	283,523		$	283,523
Investment securities available-for-sale	1,530,661			1,530,661			1,894,107			1,894,107
Investment securities available-for-sale	1,530,661			1,530,661			1,894,107			1,894,107
Investment securities held-to-maturity	921,042			949,935			438,445			452,202
Investment securities held-to-maturity	921,042			949,935			438,445			452,202
Loans held-for-sale	4,178			4,306			4,951			5,077
Loans held-for-sale	4,178			4,306			4,951			5,077
Loans, net of allowance for loan losses	6,051,604			5,957,399			5,236,901			5,168,470
Loans, net of allowance for loan losses	6,051,604			5,957,399			5,236,901			5,168,470
OREO and other repossessed assets	4,867			4,867			1,278			1,278
OREO and other repossessed assets	4,867			4,867			1,278			1,278
Interest rate swap agreements	25,332			25,332			21,624			21,624
Interest rate swap agreements	25,332			25,332			21,624			21,624
Interest rate locks	30			30			—			—
Interest rate locks	30			30			—			—

LIABILITIES
LIABILITIES
Non-interest bearing deposits	$	1,085,158		$	1,085,158		$	970,051		$	970,051
Non-interest bearing deposits	$	1,085,158		$	1,085,158		$	970,051		$	970,051
Interest bearing deposits, non-maturity	4,418,926			4,418,926			3,852,036			3,852,036
Interest bearing deposits, non-maturity	4,418,926			4,418,926			3,852,036			3,852,036
Deposits with stated maturities	1,225,661			1,223,210			1,250,491			1,253,920
Deposits with stated maturities	1,225,661			1,223,210			1,250,491			1,253,920
Customer repurchase agreements	607,705			607,705			551,736			551,736
Customer repurchase agreements	607,705			607,705			551,736			551,736
Repurchase agreements	—			—			50,000			51,332
Repurchase agreements	—			—			50,000			51,332
Federal Home Loan Bank advances	910,378			916,280			603,232			611,890
Federal Home Loan Bank advances	910,378			916,280			603,232			611,890
Subordinated debentures	77,321			77,321			77,321			77,321
Subordinated debentures	77,321			77,321			77,321			77,321
Senior long-term debt	125,000			127,250			—			—
Senior long-term debt	125,000			127,250			—			—
Interest rate swap agreements	25,332			25,332			21,624			21,624
Interest rate swap agreements	25,332			25,332			21,624			21,624
Forward sale commitments	158			158			84			84
Forward sale commitments	158			158			84			84
Interest rate locks	—			—			42			42
Interest rate locks	—			—			42			42

The fair value of cash and cash equivalents has been estimated to equal the carrying amounts due to the short-term nature of these instruments. Therefore, cash and cash equivalents are classified within Level 1 of the fair value hierarchy.

The fair value of investment securities held-to-maturity has been estimated in a similar fashion to similar securities categorized as available-for-sale. Held-to-maturity securities include state and municipal bonds, collateralized mortgage obligations and mortgage-backed securities. These instruments are classified within Level 2 of the fair value hierarchy.

The fair value of the loan portfolio has been estimated using a discounted cash flow methodology based upon prevailing market interest rates relative to the portfolios’ effective interest rate which includes assumptions concerning prepayment rates and net credit losses. The loan portfolio is classified within Level 3 of the fair value hierarchy.

The fair value of non-interest bearing demand deposits has been estimated to equal the carrying amount, which is assumed to be the amount payable on demand at the balance sheet date and therefore are classified within Level 1 of the fair value hierarchy.

The fair value of interest bearing deposits excludes deposits with stated maturities and is based on the assumption that the exit value of the instruments would be funded with like instruments by principal market participants. These instruments are classified within Level 2 of the fair value hierarchy.

The fair value of deposits with stated maturities is estimated at the present value of associated cash flows using contractual maturities and market interest rates. These instruments are classified within Level 2 of the fair value hierarchy.


15. FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS - Continued

The fair value of customer repurchase agreements has been estimated at the present value of associated cash flows using contractual maturities and market interest rates for each instrument. These instruments are classified within Level 2 of the fair value hierarchy.

The fair value of repurchase agreements is determined based on current market rates for similar borrowings, as well as a further calculation for valuing the optionality of the conversion features in certain of the instruments. These instruments are classified within Level 2 of the fair value hierarchy.

The fair value of FHLB advances is determined based on current market rates for similar borrowings with similar credit ratings, as well as a further calculation for valuing the optionality of the conversion features in certain of the instruments. These instruments are classified within Level 2 of the fair value hierarchy.

The fair value of the Company's senior long-term debt is based upon an unadjusted, quoted price (CUSIP: 637138AC2) and as such is classified within Level 1 of the fair value hierarchy.

The fair value of subordinated debentures is estimated to equal their par amount as these instruments have floating interest rates based upon LIBOR and are callable at any time. These instruments are classified within Level 2 of the fair value hierarchy.

REGULATORY_MATTERS

REGULATORY MATTERS	12 Months Ended
	Dec. 31, 2014
Regulatory Capital Requirements [Abstract]
REGULATORY MATTERS	16. REGULATORY MATTERS

	National Penn and National Penn Bank are subject to regulations of certain federal and state agencies, and undergo periodic examinations by such regulatory authorities.

	National Penn Bank’s capital amount and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulations to ensure capital adequacy require National Penn Bank and the Company to maintain minimum amounts and ratios (set forth in the following table) of total and Tier I capital (as defined in the regulations) to risk-weighted assets, and of Tier I capital to average assets. Management believes, as of December 31, 2014, that National Penn Bank and the Company met all capital adequacy requirements to which they are subject.

	In July 2013, the Basel III capital rules were finalized and will be effective January 1, 2015, with some transition period. National Penn's preliminary evaluation indicates that the impact of these rules on its capital levels and ratios, including the impact on National Penn Bank, is not expected to be material.

	National Penn Bank is required to maintain average reserve balances with the Federal Reserve Bank. The required reserve was $28.7 million at December 31, 2014. The average amount of these balances for the year ended December 31, 2014 was approximately $35.6 million.


	16. REGULATORY MATTERS - Continued

	The following tables summarize National Penn's and National Penn Bank’s regulatory capital.


	31-Dec-14
	(dollars in thousands)	Actual				For Capital				To be Well
						Adequacy Purposes				Capitalized Under
										Prompt Corrective
										Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk-weighted assets)
	National Penn	$	1,050,295	15.16	%	$	554,339	8	%	n/a		n/a

	National Penn Bank	853,919		12.43	%	549,548		8	%	$	686,935	10	%

	Tier I capital (to risk-weighted assets)

	National Penn	$	963,629	13.91	%	$	277,169	4	%	n/a		n/a

	National Penn Bank	767,993		11.18	%	274,774		4	%	$	412,161	6	%

	Tier I capital (to average assets)

	National Penn	$	963,629	10.78	%	$	357,615	4	%	n/a		n/a

	National Penn Bank	767,993		8.61	%	356,769		4	%	$	445,961	5	%


	31-Dec-13
	(dollars in thousands)	Actual				For Capital				To be Well
						Adequacy Purposes				Capitalized Under
										Prompt Corrective
										Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk-weighted assets)

	National Penn	$	1,018,316	16.72	%	$	487,295	8	%	n/a		n/a

	National Penn Bank	870,973		14.4	%	483,796		8	%	$	604,745	10	%

	Tier I capital (to risk-weighted assets)

	National Penn	$	941,926	15.46	%	$	243,647	4	%	n/a		n/a

	National Penn Bank	795,123		13.15	%	241,898		4	%	$	362,847	6	%

	Tier I capital (to average assets)

	National Penn	$	941,926	11.63	%	$	323,963	4	%	n/a		n/a

	National Penn Bank	795,123		9.85	%	323,030		4	%	$	403,788	5	%

BENEFIT_PLANS

BENEFIT PLANS	12 Months Ended
BENEFIT PLANS	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
BENEFIT PLANS	17. BENEFIT PLANS

	Capital Accumulation Plan

	The Company has a contributory capital accumulation plan under Section 401(k) of the Internal Revenue Code of 1986, as amended. Under the plan, eligible participants may contribute a minimum of 1% of eligible earnings up to a maximum of the respective annual IRS allowable contribution each year.

	Under the Capital Accumulation Plan:


	•	Persons become eligible for participation on the first day of the month following 30 days of employment.


	•	For newly-eligible employees, enrollment at 3% of base compensation is automatic and increases 1% on January 2nd of each year, until reaching 7% of base compensation, subject to an “opt-out” procedure.


	•	There is a discretionary profit sharing account, which utilizes the same performance targets as National Penn’s annual Executive Incentive Plan and Management Incentive Plan.


	•	The Company’s “match” is 50% of the first 7% of an employee’s compensation contributed to the Plan.

	Matching contributions to the plan, including discretionary profit sharing, included in salaries, wages and employee benefit expenses were $3.5 million, $3.8 million, and $3.9 million, for the years ended December 31, 2014, 2013, and 2012, respectively.

	Pension Plan

	The Company has a curtailed, non-contributory defined benefit pension plan (National Penn Bancshares, Inc. Employee Pension Plan) covering substantially all employees of the Company and its subsidiaries employed as of January 1, 2009. The Company-sponsored pension plan provides retirement benefits under pension trust agreements based on years of service. Prior to April 1, 2006, benefits are based on the average of the employee compensation during the highest five consecutive years during the last ten consecutive years of employment. Beginning on April 1, 2006, eligible compensation was limited to $50,000 per year. The Company did not make a cash contribution to the plan in 2014 because the plan’s funding credit balance was applied toward reducing the contribution requirement.

	On February 12, 2010, the Company curtailed its pension plan effective March 31, 2010, whereby no additional service will accumulate for vested participants after March 31, 2010. Unvested participants still have the opportunity to meet the five year vesting requirement to earn a benefit.

	As a result of the TF Financial acquisition on October 24, 2014, the Company acquired a qualified pension plan (3rd Fed Bank Pension Plan), which was frozen prior to the acquisition. Effective December 31, 2014, the 3rd Fed Bank Pension Plan was merged into the National Penn Bancshares, Inc. Pension Plan. The following tables present information regarding the benefit obligation, plan asset, funded status, amounts recognized in accumulated other comprehensive income (loss), net periodic benefit cost and other statistical disclosures for National Penn Bancshare's plan.


	17. BENEFIT PLANS - Continued

	The following table sets forth the plan's funded status and amounts recognized in the Company's consolidated balance sheet:


	(dollars in thousands)	December 31,
		2014				2013
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	51,847			$	56,749
	Benefit obligation at beginning of year	$	51,847			$	56,749
	Benefit obligation from business combination	10,837				—
	Benefit obligation from business combination	10,837				—
	Interest cost	2,508				2,235
	Interest cost	2,508				2,235
	Effect of change in assumptions	15,612				(5,528		)
	Effect of change in assumptions	15,612				(5,528		)
	Benefits paid	(2,068		)		(1,720		)
	Effect of change in experience	209				111
	Effect of change in experience	209				111
	Benefit obligations at end of year	$	78,945			$	51,847
	Benefit obligations at end of year	$	78,945			$	51,847
	Change in plan assets:
	Change in plan assets:
	Fair value of plan assets at beginning of year	$	47,584			$	41,414
	Fair value of plan assets at beginning of year	$	47,584			$	41,414
	Fair value of plan assets from business acquisition	10,939				—
	Fair value of plan assets from business acquisition	10,939				—
	Actual return on plan assets	4,015				8,054
	Actual return on plan assets	4,015				8,054
	Employer contribution	—				—
	Employer contribution	—				—
	Benefits paid including assumed expenses	(2,305		)		(1,884		)
	Fair value of plan assets at end of year	60,233				47,584
	Fair value of plan assets at end of year	60,233				47,584

Funded status	$	(18,712	)		$	(4,263	)

Net loss not yet recognized in net periodic pension cost	$	29,704			$	14,685
Net loss not yet recognized in net periodic pension cost	$	29,704			$	14,685

The effect of change in assumptions in the above table was impacted by the decrease in the discount rate utilized to calculate benefit obligations, from 4.75% for 2013 to 3.85% for 2014, and the adoption of the newly issued mortality tables (RP-2014) and mortality improvement scale (MP-2014).

Net pension cost included the following components:


(dollars in thousands)	Year Ended December 31,
	2014				2013				2012
Service cost	$	234			$	164			$	124
Service cost	$	234			$	164			$	124
Interest cost	2,508				2,235				2,295
Interest cost	2,508				2,235				2,295
Expected return on plan assets	(3,523		)		(2,931		)		(2,758		)
Amortization of unrecognized net actuarial loss	313				634				562
Amortization of unrecognized net actuarial loss	313				634				562
Net periodic benefit cost (gain)	$	(468	)		$	102			$	223
Net periodic benefit cost (gain)	$	(468	)		$	102			$	223

Unamortized actuarial gains and losses and prior service costs and credits are recognized in AOCI. Refer to Footnote 11 in this Report.



17. BENEFIT PLANS - Continued

Weighted-average assumptions used to determine net benefit obligations:


	As of December 31,
	2014			2013
Discount rate	3.85	%		4.75	%
Rate of compensation increase	N/A			N/A
Rate of compensation increase	N/A			N/A

Weighted-average assumptions used to determine net periodic benefit cost:


	Year Ended December 31,
	2014			2013
Discount rate	4.74	%		4	%
Expected long-term return on plan assets	7.26	%		7.25	%
Rate of compensation increase	N/A			N/A
Rate of compensation increase	N/A			N/A

Plan Assets

The financial statements of the Company's pension plan are prepared on the accrual basis of accounting. Interest income is recorded on the accrual basis, and dividends are recorded on the ex-dividend date. The pension plan's investments are stated at fair value, and purchases and sales of securities are recorded on the trade date. To determine the fair value of plan assets, the pension plan utilizes the fair value hierarchy as described in detail in Footnote 15 Fair Value Measurements and Fair Value of Financial Instruments. The fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Investments in interest bearing cash are stated at cost, which approximates fair value. The fair values of money market and mutual funds are based on quoted net asset values of the shares held by the plan on the valuation date. The fair values of common stocks and U.S. Government obligations are valued at the closing price reported in active markets in which the individual securities are traded. Collective investment trust funds are valued by the trustee. The trustee follows written procedures for establishing unit values on a periodic basis which incorporate observable market data; however the collective investment trust fund itself is not traded on an established market and therefore is categorized as a Level 2 hierarchy. The plan does not have any assets in the Company’s stock. Actively traded corporate bonds and notes are valued based on quoted prices. U.S. Government agency obligations are valued based on yields currently available on comparable securities of issuers with similar credit ratings. The plan does not have any Level 3 investments.

The following table sets forth the pension plan’s financial assets at fair value by level within the fair value hierarchy:


December 31, 2014	Quoted				Significant				Significant			Balance		Asset Allocation
	Prices in Active				Other				Unobservable			as of
	Markets for				Observable				Inputs			December 31,
	Identical Assets				Inputs				(Level 3)			2014
(dollars in thousands)	(Level 1)				(Level 2)
Equity securities	$	34,512			$	—			$	—		$	34,512	57	%
Equity securities	$	34,512			$	—			$	—		$	34,512	57	%
Debt securities	7,960				5,571				—			13,531		22	%
Debt securities	7,960				5,571				—			13,531		22	%
Collective investment trust funds	—				11,346				—			11,346		19	%
Collective investment trust funds	—				11,346				—			11,346		19	%
Other	844				—				—			844		2	%
Other	844				—				—			844		2	%
Total	$	43,316			$	16,917			$	—		$	60,233	100	%
Total	$	43,316			$	16,917			$	—		$	60,233	100	%

December 31, 2013	Quoted				Significant				Significant			Balance		Asset Allocation
	Prices in Active				Other				Unobservable			as of
	Markets for				Observable				Inputs			December 31,
	Identical Assets				Inputs				(Level 3)			2013
(dollars in thousands)	(Level 1)				(Level 2)
Equity securities	$	33,475			$	—			$	—		$	33,475	70	%
Equity securities	$	33,475			$	—			$	—		$	33,475	70	%
Debt securities	8,299				5,286				—			13,585		29	%
Debt securities	8,299				5,286				—			13,585		29	%
Other	524				—				—			524		1	%
Other	524				—				—			524		1	%
Total	$	42,298			$	5,286			$	—		$	47,584	100	%
Total	$	42,298			$	5,286			$	—		$	47,584	100	%

17. BENEFIT PLANS - Continued

Estimated Future Benefit Payments


(dollars in thousands)
2015	$	3,100
2015	$	3,100
2016	2,572
2016	2,572
2017	2,839
2017	2,839
2018	3,099
2018	3,099
2019	3,415
2019	3,415
2020-2024	19,806
2020-2024	19,806

SHAREBASED_COMPENSATION

SHARE-BASED COMPENSATION	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
SHARE BASED COMPENSATION	18. SHARE-BASED COMPENSATION

	The Company, through its Compensation Committee of the Board of Directors, offers equity compensation to employees and non-employee directors of National Penn, National Penn Bank and other National Penn subsidiaries in the form of share-based awards. Stock options, restricted stock awards (“RSAs”), and restricted stock units (“RSUs”) vest over time, upon the satisfaction of established performance criteria, or both.

	The Company believes such awards better align the interests of its employees and non-employee directors with those of its shareholders. Option awards are granted with an exercise price at least equal to the market price of the Company’s stock at the date of grant. Option and other share-based awards vest at such times as are determined by the Compensation Committee of the Board of Directors at the time of grant, but not before one year from the date of grant or later than five years from the date of grant. The options have a maximum term of ten years for incentive stock options or ten years, one month for non-qualified stock options.

	The fair value of RSAs and RSUs are estimated based on the price of the Company’s common stock on the date of grant. Compensation cost is measured ratably over the vesting period of the awards and reversed for awards which are forfeited due to unfulfilled service or performance criteria.

	Vesting of share-based awards is immediately accelerated in the event of a change-in-control; in the event the recipient’s service terminates due to death, disability or retirement (including a voluntary termination of employment at age 60 or more); or in the event of an involuntary termination of employment not for cause.

	Awards are currently granted under the National Penn Bancshares, Inc. 2014 Long-Term Incentive Compensation Plan, approved by shareholders in April 2014 (“2014 Plan”) and expiring April 22, 2024. The 2014 Plan replaced the previous plan ("2005 Plan"), which expired November 30, 2014, and includes authorized but unissued common shares under the 2005 Plan. Under the terms of the 2014 Plan, approximately 3.3 million shares are available for issuance as of December 31, 2014.


	18. SHARE-BASED COMPENSATION - Continued

	Prior to the adoption of the 2014 Plan, the Company maintained other employee stock compensation plans ("Previous Company Plans"). A total of 10.4 million shares of common stock were made available for option or restricted stock awards. At December 31, 2014, 2.1 million shares remain outstanding from the Previous Company Plans. In addition to the Previous Company Plans, the Company issued 3,022,185 substitute stock options as a result of acquisitions made in 2008, of which, approximately 0.6 million options were outstanding at December 31, 2014.

	The impact of shared-based compensation on the Company’s financial results for the following periods:


	(dollars in thousands)	Year Ended December 31,
		2014				2013				2012
	Share-based compensation expense	$	4,315			$	3,309			$	3,513

	Income tax benefit	(1,510		)		(1,158		)		(1,230		)
	Reduction to net income	$	2,805			$	2,151			$	2,283


	The total unrecognized compensation cost and the weighted-average period over which unrecognized compensation cost is expected to be recognized related to non-vested share-based compensation arrangements at December 31, 2014 is presented below:



	(dollars in thousands)	Unrecognized Compensation Cost				Weighted-Average Period Remaining (Years)
	Restricted stock	$	4,420			2.1

	Stock options	1,069				2.1

	Total	$	5,489			2.1


	Restricted Stock

	Information regarding restricted stock for the following periods is summarized below:


		Year Ended December 31,
		2014				2013				2012
	Shares granted	395,621				411,723				383,906

	Weighted-average grant date fair value	$	11.14			$	9.85			$	8.8

	Fair value of awards vested (000's)	$	3,066			$	1,988			$	2,098


	A summary of the status of the Company’s non-vested restricted stock as of December 31, 2014, and changes during the year then ended, is presented below:


		Shares			Weighted-
					Average
					Grant-Date
					Fair Value
	Non-vested at January 1, 2014	897,189			$	9

	Granted	395,621			11.14

Forfeited/Canceled	(33,100	)		9.83

Vested	(286,890	)		8.83

Non-vested at December 31, 2014	972,820			$	9.84



18. SHARE-BASED COMPENSATION - Continued

Stock Options

The Company estimated the fair value of each option grant on the date of grant using the Black-Scholes options-pricing model with the following weighted-average assumptions:


	Year Ended December 31,
	2014			2013			2012
Risk-free interest rates	1.89	%		1.2	%		1.76	%
Expected dividend yield	3.59	%		4.07	%		2.27	%
Expected volatility	53.39	%		53.13	%		51.09	%
Expected lives (years)	5.92			6.98			7.88


Information regarding stock options as of December 31, 2014, and changes during the year ended are presented below:



(dollars in thousands, except share and per share data)				Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value

	Options
Outstanding at January 1, 2014	4,047,004			$	15.06			2.6		$	3,032

Granted	246,000			11.15

Exercised	(61,100	)		7.64

Forfeited	(1,599,265	)		16.83

Outstanding at December 31, 2014	2,632,639			13.79				3.5		2,016


Exercisable at December 31, 2014	2,028,207			$	15.03			2.2		$	1,346


The following table summarizes information related to stock options:


(dollars in thousands, except share and per share data)	Year Ended December 31,
	2014				2013				2012
Options granted	246,000				247,750				239,250

Weighted-average grant date fair value	$	4.13			$	3.47			$	3.8

Fair value of awards vested	708				675				588

Proceeds from stock options exercised	467				900				708

Tax benefit recognized from stock options exercised	62				112				697

Intrinsic value of stock options exercised	176				321				352


Employee Stock Purchase Plan

Under the 1997 shareholder-approved Employee Stock Purchase Plan (“ESPP”), as amended, the Company is authorized to issue up to 864,723 common shares of the Company to eligible employees of the Company. These shares may be purchased by employees at a price equal to 90% of the fair market value of the shares on the purchase date. Purchases under the ESPP are made four times annually. Employee contributions to the ESPP are made through payroll deductions.


	Year Ended December 31,
	2014				2013				2012
ESPP shares purchased	60,812				65,161				66,103

Weighted-average employee purchase price	$	9.29			$	9.44			$	8.27

INCOME_TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
INCOME TAXES	19. INCOME TAXES

	The components of the income tax expense included in the consolidated statements of income are as follows:



	(dollars in thousands)		Year Ended December 31,
			2014				2013			2012
	FEDERAL:
	Current		$	21,116			$	9,339		$	21,556

	Deferred federal expense		12,393				59			10,845

			33,509				9,398			32,401

	STATE:

	Current		—				183			353

	Deferred state expense		—				—			—

			—				183			353

	Income tax expense		$	33,509			$	9,581		$	32,754


	The differences between income tax expense and the amount computed by applying the statutory federal income tax rate are as follows:



	(dollars in thousands)		Year Ended December 31,
			2014				2013			2012
	Computed tax expense at statutory rate		$	46,276			$	22,038		$	46,082

	State income tax expense, net		—				119			228

	Decrease in taxes resulting from:

	Tax-exempt loan and investment income		(12,141		)		(12,927		)	(13,861		)
	Amortization of goodwill and intangibles		(3		)		(3		)	(3		)
	Other, net		(623		)		354			308

	Income tax expense		$	33,509			$	9,581		$	32,754




	19. INCOME TAXES - Continued

	Deferred tax assets and liabilities are composed of the following:


	(dollars in thousands)		December 31,
			2014				2013
	Deferred tax assets
	Allowance for loan losses		$	31,736			$	33,728

	Tax credits		25,599				34,405

	Net unrealized losses on investment securities available-for-sale		—				6,295

	Accrued incentives and deferred compensation		8,713				8,688

	Net operating loss		983				702

Pension		5,549				1,532

Accrued expenses		4,141				5,796

Share-based compensation		3,475				3,044

Write-downs on other real estate		660				30

Depreciation		155				—

		$	81,011			$	94,220

Deferred tax liabilities

Net unrealized gains on investment securities available-for-sale		$	4,435			$	—

Core deposit intangibles & acquisition related		5,129				5,904

Loan costs		8,720				7,352

Amortization		4,740				4,115

Depreciation		—				257

Mortgage servicing rights		505				—

		23,529				17,628

Net deferred tax asset (included in other assets)		$	57,482			$	76,592


The Company believes that it is more likely than not that the deferred tax assets will be realized based upon estimates of taxable income and tax planning strategies; as a result, no valuation allowance was recorded as of December 31, 2014 or 2013. The Company has adjusted its beginning and ending deferred tax assets and liabilities for prior acquisitions and reclassifications of tax reserves.

As of December 31, 2014, the Company’s deferred tax asset included a net operating loss (“NOL”) carry forward of $1.0 million which begins to expire in 11 years if not fully utilized and is limited annually due to an ownership change that occurred, as defined by Section 382 of the Internal Revenue Code, from prior acquisitions. The Company anticipates fully utilizing its NOL prior to its statutory expiration dates. The Company has the additional following carryover items: (1) low income housing credits of $0.3 million that will begin to expire in 2030 if not utilized; and (2) an alternative minimum tax credit of $24.3 million which has an indefinite life.















19. INCOME TAXES - Continued

Uncertain Tax Positions

The Company records a liability for unrecognized tax benefits. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:


(dollars in thousands)
		2014				2013
Balance at January 1,		$	1,037			$	1,886

Additions based on tax positions related to the current year		75				107

Additions for tax positions of prior years		28				—

Reductions for tax positions of prior years		—				(343		)

Reductions as a result of lapse of applicable statute of limitations		(421		)		(613		)
Balance at December 31,		$	719			$	1,037


The Company is subject to income taxes in the U.S. and various state jurisdictions. Tax regulations within each jurisdiction are subject to the interpretation of the related tax laws and regulations and require significant judgment to apply. The Company is no longer subject to U.S. federal tax examinations by the IRS before 2011, and is generally no longer subject to tax examinations by state and local tax authorities for the years before 2010.

CONDENSED_FINANCIAL_INFORMATIO

CONDENSED FINANCIAL INFORMATION-PARENT COMPANY ONLY	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
CONDENSED FINANCIAL INFORMATION-PARENT COMPANY ONLY	. CONDENSED FINANCIAL INFORMATION – PARENT COMPANY ONLY

	The following table is a summary of selected financial information of National Penn Bancshares, Inc., parent company only:



	(dollars in thousands)
		Year Ended December 31,
	CONDENSED BALANCE SHEETS	2014				2013
	Assets:
	Cash (v)	$	96,714			$	11,056

	Investment in bank subsidiaries	1,066,182				1,057,054

	Investment in other subsidiaries	224,570				139,342

	Other assets	5,453				2,142

	Total assets	$	1,392,919			$	1,209,594

	Liabilities and shareholders' equity:

	Subordinated debentures	$	77,321			$	77,321

	Senior long-term debt	125,000				—

	Other liabilities	1,959				407

	Shareholders' equity	1,188,639				1,131,866

	Total liabilities and shareholders' equity	$	1,392,919			$	1,209,594


	(v) For tax planning purposes, cash was transferred to a subsidiary of the Parent Company totaling $200 million at December 31, 2014 and $115 million at December 31, 2013. The cash was subsequently transferred back to the Parent Company.

	20. CONDENSED FINANCIAL INFORMATION – PARENT COMPANY ONLY - Continued


	(dollars in thousands)
		Year Ended December 31,
	CONDENSED STATEMENTS OF INCOME	2014				2013				2012
	Income:
	Equity in undistributed net (loss) earnings of subsidiaries (w)	$	7,237			$	(24,961	)		$	(110,930	)

	Dividends from subsidiaries	95,000				79,900				214,992

	Interest and other income	64				2,206				913

	Total income	102,301				57,145				104,975

	Expense:

	Interest on subordinated debentures	2,127				3,092				7,425

	Other operating expenses	3,369				1,502				1,392

	Total expense	5,496				4,594				8,817

	Income before income taxes	96,805				52,551				96,158

	Income tax (benefit)	(1,901		)		(836		)		(2,752		)
	Net income	$	98,706			$	53,387			$	98,910


(w) During 2014, earnings of subsidiaries totaled $102 million and were netted by distributions to the Parent Company of $95.0 million.



20. CONDENSED FINANCIAL INFORMATION – PARENT COMPANY ONLY - Continued


(dollars in thousands)
	Year Ended December 31,
CONDENSED STATEMENTS OF CASH FLOWS	2014				2013				2012
Cash flows from operating activities:
Net income	$	98,706			$	53,387			$	98,910

Equity in undistributed net loss (earnings) of subsidiaries (w)	(7,237		)		24,961				110,930

(Increase) decrease in other assets	(3,311		)		(1,185		)		4,843

Increase (decrease) in other liabilities	1,552				407				(1,835		)

Other, net	—				(2,100		)		—

Net cash provided by (used in) operating activities	89,710				75,470				212,848



Cash flows from investing activities:

Capital contributions to subsidiaries (v)	(200,000		)		(115,000		)		(150,000		)
Capital received from subsidiaries	115,000				151,956				55,997

Outlays for business acquisitions	(58,436		)		—				—

Other	43,742				—				—

Net cash provided by (used in) investing activities	(99,694		)		36,956				(94,003		)



Cash flows from financing activities:

Proceeds from advances from subsidiaries	—				—				1,063

Repayment of advances from subsidiaries	—				(65,206		)		(1,746		)

Proceeds from issuance of long-term debt	125,000				—				—

Common and treasury stock issuances	7,154				6,370				7,092

Purchase of treasury stock	(78,549		)		—				(67,531		)

Cash dividends	(57,963		)		(43,697		)		(61,401		)
Other	100,000				—				—

Net cash used in financing activities	95,642				(102,533		)		(122,523		)



Net increase (decrease) in cash and cash equivalents	85,658				9,893				(3,678		)



Cash and cash equivalents at beginning of year	11,056				1,163				4,841



Cash and cash equivalents at end of year (v)	$	96,714			$	11,056			$	1,163


(v) For tax planning purposes, cash was transferred to a subsidiary of the Parent Company totaling $200 million at December 31, 2014 and $115 million at December 31, 2013. The cash was subsequently returned to the Parent Company.
(w) During 2014, earnings of subsidiaries totaled $102 million and were netted by distributions to the Parent Company of $95.0 million.

SEGMENT_REPORTING

SEGMENT REPORTING	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
SEGMENT REPORTING	21. SEGMENT INFORMATION

	The Company’s operating segments, which are evaluated regularly by the Chief Executive Officer to decide how to allocate and assess resources and performance, are “Community Banking” and “Other.” The Company determines its segments based primarily upon product and service offerings and through the types of income generated.

	The Company’s community banking segment consists of commercial and retail banking. The community banking business segment is managed as a single strategic unit, which generates revenue from a variety of products and services it provides. Examples of products and services provided include commercial business loans, commercial real estate loans, residential mortgages and other consumer loans, and deposit and cash management services. Both commercial and retail banking are dependent upon deposits and various borrowings to manage interest rate and credit risk.

	The Company has also identified several other operating segments. These non-reportable segments include National Penn Wealth Management, N.A., National Penn Insurance Services Group, Inc., and the parent bank holding company and are included in the “Other” category. These operating segments do not have similar characteristics to the community banking operations and do not individually or in the aggregate meet the quantitative thresholds requiring separate disclosure. The operating segments in the “Other” category earn revenues primarily through the generation of fee income and are also aggregated based on their similar economic characteristics, products and services, type or class of customer, methods used to distribute products and services and/or nature of their regulatory environment. The identified segments reflect the manner in which financial information is currently evaluated by management. The accounting policies, used in this disclosure of operating segments, are the same as those described in the Footnote 1 "Summary of Significant Accounting Policies" within this section.

	Reportable segment-specific information and reconciliation to consolidated financial information is as follows:



	(dollars in thousands)	Community Banking
	31-Dec-14			Other			Consolidated
	Total assets	$	9,711,763	$	39,102		$	9,750,865

	Total deposits	6,729,745		—			6,729,745

	Net interest income (expense)	260,777		(3,663		)	257,114

	Total non-interest income	49,000		43,175			92,175

	Total non-interest expense	176,418		34,905			211,323

	Net income	96,585		2,121			98,706

	December 31, 2013
	Total assets	8,551,806		40,042			8,591,848

	Total deposits	6,072,578		—			6,072,578

	Net interest income (expense)	255,030		(2,968		)	252,062

	Total non-interest income	52,968		45,099			98,067

	Total non-interest expense	244,906		37,005			281,911

	Net income	50,840		2,547			53,387

	December 31, 2012
	Total assets	8,485,482		44,040			8,529,522

	Total deposits	5,935,565		—			5,935,565

	Net interest income (expense)	261,098		(7,092		)	254,006

	Total non-interest income	53,784		42,184			95,968

	Total non-interest expense	173,507		36,803			210,310

	Net income (loss)	100,624		(1,714		)	98,910

SUBSEQUENT_EVENTS

SUBSEQUENT EVENTS	12 Months Ended
SUBSEQUENT EVENTS	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	22. SUBSEQUENT EVENTS

	On January 22, 2015, National Penn announced that the Board of Directors approved a common share repurchase plan of of $125 million. For additional information, see National Penn’s Current Report on Form 8-K dated January 22, 2015.
	On February 6, 2015, National Penn completed the repurchase of 7.3 million shares of its common stock from two affiliates of Warburg Pincus, at $10.25 per share. As a result, the ownership of National Penn common stock by these shareholders was reduced to approximately 8.3% of National Penn's outstanding common stock. For additional information see National Penn's Current Report on From 8-K dated February 4, 2015.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
NATURE OF OPERATIONS	Nature of Operations

	National Penn Bancshares, Inc. (the “Company” or “National Penn”), primarily through its national bank subsidiary, National Penn Bank (“NPB”) serves residents and businesses primarily in eastern and central Pennsylvania. NPB, which has 127 retail branch office locations (119 in Pennsylvania, 7 in New Jersey, and 1 in Cecil County, Maryland), is a locally managed community bank providing commercial banking products, primarily loans and deposits.

	The Company’s financial service units consist of an array of investment, insurance and employee benefit services through its non-bank subsidiaries. National Penn’s financial services affiliates consist of National Penn Wealth Management, N.A., including its National Penn Investors Trust Company division; Institutional Advisors, LLC; and National Penn Insurance Services Group, Inc., including its Higgins Insurance and Caruso Benefits divisions.

	The Company and its operating subsidiaries compete for market share in the communities they serve with other bank holding companies, community banks, thrift institutions and other non-bank financial organizations, such as mutual fund companies, insurance companies and brokerage companies.

	The Company and its operating subsidiaries are subject to regulations of certain state and federal agencies. These regulatory agencies periodically examine the Company and its subsidiaries for adherence to laws and regulations. As a consequence, the cost of doing business may be affected.
BASIS OF FINANCIAL STATEMENT PRESENTATION	Basis of Financial Statement Presentation

	The accounting policies followed by the Company conform with accounting principles generally accepted in the United States of America (“GAAP”) and predominant practice within the banking industry.
CONSOLIDATION POLICY	The consolidated financial statements include the accounts of the Company and the Company’s direct and indirect wholly owned subsidiaries. The Company’s unconsolidated subsidiaries, representing investments in joint ventures, and other entities are accounted for using the equity method of accounting. All material inter-company balances have been eliminated.
RECLASSIFICATIONS	Reclassifications

	Certain prior year amounts have been reclassified to conform to current period classifications. These reclassifications did not have a material impact on our consolidated financial condition or results of operations.
USE OF ESTIMATES	Use of Estimates

	In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the balance sheets, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

	The principal estimates that are susceptible to significant change in the near term relate to the allowance for loan losses, goodwill and intangible assets, income taxes, and other-than-temporary impairment. Management’s practice is to retain supporting files for all accounting entries made, but in particular to organize, support and prepare clarifying memoranda for items in the financial statements requiring significant judgment.
BUSINESS COMBINATIONS	Business Combinations

	At the date of acquisition the Company records the net assets of acquired companies on the consolidated balance sheet at their estimated fair value, and goodwill is recognized for the excess of the purchase price over the estimated fair value of acquired net assets. The results of operations for acquired companies are included in the Company’s consolidated statement of income beginning at the acquisition date. Expenses arising from acquisition activities are recorded in the consolidated statement of income during the period incurred.
REVENUE RECOGNITION	Revenue Recognition

	The Company recognizes revenue in the consolidated statement of income as it is earned and when collectability is reasonably assured. The primary source of revenue is interest income from interest earning assets, which is recognized on the accrual basis of accounting using the effective interest method. The recognition of revenues from interest earning assets is based upon formulas from underlying loan agreements, securities contracts or other similar contracts. Non-interest income is recognized on the accrual basis of accounting as services are provided or as transactions occur. Non-interest income includes fees from wealth management services, deposit accounts, sales of insurance products, cash management and electronic banking services, mortgage banking activities, standby letters of credit and financial guarantees, and other miscellaneous services and transactions.
ADVERTISING COSTS	Advertising Costs

	Advertising costs are recorded in the period they are incurred within other operating expenses in non-interest expense in the consolidated statement of income. Advertising expense was $6.0 million, $5.5 million, and $5.6 million for the years ended December 31, 2014, 2013 and 2012, respectively.
CASH AND CASH EQUIVALENTS	Cash and Cash Equivalents

	Cash and due from banks and interest bearing deposits with banks comprise “cash and cash equivalents” on the consolidated balance sheet and statement of cash flows. Cash held on deposit with other financial institutions is in excess of FDIC insurance limits.
RESTRICTIONS ON CASH IN CASH AND DUE FOM BANKS	The Company is required to maintain cash reserves that are considered restrictions on cash and due from banks shown on our consolidated balance sheet. These restrictions consist of required reserves with the Federal Reserve Bank related to our deposit liabilities and cash collateral related to letters of credit and interest rate swaps with financial institution counterparties. Total restricted cash was $75.3 million and $52.4 million for the years ended December 31, 2014 and 2013, respectively.
INVESTMENT SECURITIES AND OTHER INVESTMENTS	Investment Securities and Other Investments

	Investment securities which are held for indefinite periods of time, which management intends to use as part of its asset/liability strategy, or which may be sold in response to changes in interest rates, changes in prepayment risk, increases in capital requirements, or other similar factors, are classified as available-for-sale and are recorded at their estimated fair value on the consolidated balance sheet. Changes in unrealized gains and losses for such securities, net of tax, are reported in accumulated other comprehensive income as a separate component of shareholders’ equity and are excluded from the determination of net income. Investment securities which have stated maturities for which the Company has the intent and ability to hold until the maturity date are classified as held-to-maturity and are recorded at amortized cost on the consolidated balance sheet.

	Transfers of debt securities into the held-to-maturity category from the available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security. Debt securities originally classified as available-for-sale and which have been subsequently reclassified as held-to-maturity are recorded at carrying value on the consolidated balance sheet. The carrying value of reclassified securities represents their amortized cost as well as any remaining unamortized unrealized holding gain or loss.

	Interest from debt securities is recognized in interest income inclusive of adjustments for amortization of purchase premiums and accretion of purchase discounts using the interest method. Dividends from investments in equity securities are accrued in interest income in the consolidated statement of income when they are declared. Gains or losses from the disposition of investment securities are recognized at the trade date as non-interest income in the consolidated statement of income, based on the net proceeds and cost of the securities sold, adjusted for amortization of premiums and accretion of discounts, using the specific identification method.



	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	When the fair value of an investment security is less than the carrying value, the security is considered to be impaired, and as such the Company reviews the security for the presence of other-than-temporary impairment ("OTTI"). This analysis is performed at least quarterly, and includes the consideration of numerous factors including the time period for which the fair
	value has been less than the carrying value, curtailment or suspension of dividends or cash flows, deterioration of financial performance or the creditworthiness of the issuer, performance of any underlying collateral, and negative trends in a particular industry or sector. The conclusion as to whether OTTI exists for an investment security is ultimately based upon the Company’s evaluation of the investment’s recoverability above its carrying value and its timing. In addition, the Company considers whether it plans to sell an investment security and whether it may be required to sell the security prior to recovery of its carrying value.

	When the Company concludes an investment security is other-than-temporarily impaired, a loss for the difference between the investment security’s carrying value and the fair value is recognized as a reduction to non-interest income in the consolidated statement of income. For an investment in a debt security, if the Company does not intend to sell the investment security and concludes that it is not more likely than not it will be required to sell the security before recovering the carrying value, which may be maturity, the OTTI charge is separated into the "credit" and "other" components. The "other" component of the OTTI is included in other comprehensive income, net of the tax effect, and the "credit" component of the OTTI is included in the consolidated statement of income as a reduction to non-interest income.
COST METHOD INVESTMENTS	Other investments are comprised of Federal Home Loan Bank ("FHLB") of Pittsburgh stock and Federal Reserve Bank stock. Federal Reserve Bank stock is an equity interest in the Philadelphia Federal Reserve Bank that is required of member banks. The required subscription for Federal Reserve Bank stock is equal to 6% of National Penn Bank’s capital and surplus. The stock is not transferable and additional purchases or cancellations of the stock are transacted directly with the Federal Reserve Bank of Philadelphia. FHLB stock is an equity interest that can be sold only to the issuing FHLB 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 other investments are recorded at cost or par value and are 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.
LOANS AND LEASES	Loans and Leases

	Loans that management has the intent to hold for the foreseeable future or until maturity or payoff are considered held for investment and are reported at the amount of unpaid principal, net of unearned income, unamortized deferred fees and origination costs, and commitment fees. The Company also estimates an allowance for loan losses, which is netted from the carrying amount of loans presented on the consolidated balance sheet. Interest on loans is calculated based upon the principal amount outstanding. Net deferred fees on Company originated loans, consisting of origination and commitment fees and direct loan origination costs, are amortized over the contractual life of the related loans using the interest method, which results in an adjustment of the related loan’s yield.

	Loans are placed on non-accrual status and accrual of interest is suspended on a loan when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that collection of all contractually required payments is no longer probable. When a loan is on non-accrual status, payments are applied in their entirety to principal. If a borrower’s financial condition improves to the point where management believes that collection of the remaining principal and interest is probable, management may restore the loan to accrual status, at which time payments received are applied to both principal and interest and recognition of interest income continues. Generally, loans are placed on non-accrual status when they reach 90 days past due based on the contractual terms of the loan agreement.

	Direct financing leases are carried at the aggregate of the lease payments plus the estimated residual value of the leased property, net of unearned income and deferred initial direct costs. Interest income on leases is recognized using the interest method over the lease term, which incorporates amortization of deferred initial direct costs as an adjustment to the lease’s yield. Residual values for leases are reviewed for impairment at least annually based upon historical performance, independent appraisals, and industry data. Valuation adjustments to residual values are included in other operating expenses within non-interest expense in the consolidated statement of income. Gains or losses from the sale of leased assets are also included in other operating income within non-interest income in the statement of income.

	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Equipment underlying leases to customers for which a sale to the lessee is not implied or imminent is reported on the consolidated balance sheet within premises and equipment and is depreciated over its useful life. In the event that the lessee fails to meet a contractual leasing obligation, the remaining carrying value is considered a non-performing asset, including any underlying equipment which may be repossessed.
PURCHASED LOANS	Purchased Loans

	Purchased loans are initially recorded at their acquisition date fair values. Fair values for purchased loans are based on a discounted cash flow methodology that involves assumptions and judgments as to credit risk, default rates, loss severity, collateral values, discount rates, payment speeds, prepayment risk, and liquidity risk. No allowance for loan loss is recognized at the date of acquisition for purchased loans.

	Purchased loans which have evidence of deterioration of credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments receivable, are considered to be “purchased credit impaired loans.” For purchased credit impaired (“PCI”) loans, the difference between the undiscounted cash flows expected at acquisition and the investment in the loans, or the “accretable yield,” is recognized as interest income on a level-yield method over the life of the loans. Contractually required payments for interest and principal that exceed the undiscounted cash flows expected at acquisition, or the “nonaccretable difference,” are not recognized as a yield adjustment or as a loss accrual or a valuation allowance. Increases in expected cash flows subsequent to the initial investment are recognized prospectively through adjustment of the yield on the loans over their remaining lives. Decreases in expected cash flows due to an inability to collect contractual cash flows are recognized as impairment through the provision for loan losses account. Any allowance for loan loss on these loans reflect only losses incurred after the acquisition (meaning the present value of all cash flows expected at acquisition that ultimately are not to be received). Any disposals of loans, including sales of loans, payments in full or foreclosures result in the derecognition of the loan at its carrying value with differences in actual results reflected in interest income.

	Premiums and discounts related to purchased loans which did not have evidence of credit quality deterioration since origination at acquisition are included or netted with the balance of unpaid principal on the consolidated balance sheet and are also deferred and amortized over the contractual life of the loan using the interest method. Subsequent to the acquisition or purchase date, the method used to evaluate the sufficiency of the credit discount is similar to originated loans, and if necessary, additional reserves are recognized in the allowance for loan losses.
LOANS HELD FOR SALE	Loans Held-For-Sale

	Loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value on the consolidated balance sheet, and these loans are traditionally sold servicing released. The fair value of loans held-for-sale is estimated based upon the contractually agreed upon sales price to investors. Write-downs to fair value, if any, are reflected through a valuation allowance netted from the cost basis of the loans on the consolidated balance sheet and a related expense recorded as a reduction to mortgage banking income in the consolidated statement of income. At disposition, the difference between the net proceeds received and the carrying value of the loan is recorded as a gain or loss within mortgage banking income in the consolidated statement of income. Estimated credit losses, if any, on loans transferred to held-for-sale, which management previously intended to hold for investment, are charged to the allowance at the time of transfer. Non-credit related losses, if any, or subsequent gains or losses upon disposition are recorded in other operating income within non-interest income on the consolidated statement of income. Valuations of non-mortgage loans transferred to held-for-sale are performed on an individual basis.
NONPERFORMING ASSETS	Non-Performing Assets

	Assets which are otherwise considered earning assets may cease to perform according to their original terms and become non-performing assets. The Company’s non-performing assets consist of non-accrual loans, loans defined as troubled debt restructurings, and other real estate owned. On an ongoing basis, the Company monitors economic conditions and reviews borrower financial results, collateral values, and compliance with payment terms and covenant requirements in order to identify problems in loan relationships. All problem loans are reviewed regularly for impairment. When management believes that the collection of all or a portion of principal and interest is no longer probable, the accrual of interest is suspended, and payments for interest are applied to principal until the Company determines that all remaining principal and interest can be recovered. This may occur at any time regardless of delinquency status, however, loans 90 days or more past due are reviewed monthly to determine whether the accrual of interest should continue. Loans for which the accrual of interest has been suspended are categorized as non-accrual loans.

	Through negotiations with a borrower, the Company may restructure a loan prior to or at its contractual maturity. Modification of a loan’s terms constitutes a troubled debt restructuring ("TDR") if the Company, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession that it would not otherwise consider. The Company restructures loans in an attempt to preserve or improve the economic recovery of principal and/or interest due from a borrower. Not all modifications of loan terms automatically result in a TDR, only modifications which are concessions (terms not otherwise attainable) to a borrower experiencing financial distress constitute TDRs. TDRs are disclosed as restructured loans. TDRs and non-accrual loans comprise the Company’s impaired loans which are evaluated individually for purposes of determining the allowance for loan losses.

	Other real estate owned ("OREO") results from the acquisition of real estate through foreclosure, abandonment, or conveyance of deed in lieu of foreclosure of a loan. OREO is carried on the consolidated balance sheet within OREO and other repossessed assets at the estimated fair value of the real estate less expected costs to sell at the acquisition date. Any loss upon reclassification from loans to OREO is recognized as a charge to the allowance for loan losses. During the holding period, OREO continues to be measured at the lower of its carrying amount or estimated fair value less costs to sell, and any valuation adjustment and gains or losses upon disposition are recognized within other operating income within non-interest income in the consolidated statement of income. OREO is evaluated individually rather than as a group, unless the circumstances render the group measurement to be a more appropriate basis as determined by management.
SIGNIFICANT CONCENTRATIONS OF CREDIT RISK	Significant Concentrations of Credit Risk

	Most of the Company’s activities are with customers located throughout eastern and central Pennsylvania. The Company’s commercial portfolio has a concentration in loans to commercial real estate investors and developers as defined by regulation. There are numerous risks associated with commercial loans that could impact the borrower’s ability to repay on a timely basis. They include, but are not limited to: the owner’s business expertise; changes in local, national, and in some cases international economies; competition; governmental regulation; and the general financial stability of the borrowing entity.

	The Company attempts to mitigate these risks by completing an analysis of the borrower’s business and industry history, the borrower’s financial position, as well as that of the business owner. The Company will also require the borrower to periodically provide financial information on the operation of the business over the life of the loan. In addition, most commercial loans are secured by assets of the business or those of the business owner, which can be liquidated if the borrower defaults, along with the personal surety of the business owner.
ALLOWANCE FOR LOAN AND LEASE LOSSES	Allowance for Loan Losses

	Management conducts an analysis of the loan portfolio to estimate the amount of the allowance for loan losses ("allowance") which is adequate to absorb inherent losses on existing loans. The allowance is established through a provision for loan losses charged as an expense in the consolidated statement of income. Loans are charged-off to the allowance when management believes that the collectability of the principal is less than probable and sufficient information exists to make a reasonable estimate of the inherent loss or a loss event has been confirmed.



	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	The evaluation of the adequacy of the allowance includes an analysis of individual loans and groups of homogeneous loans. Loans in the portfolio are segregated by risk characteristics. This is primarily accomplished by separating loan types as well as loan risk designations including, but not limited to: loans classified as Substandard or Doubtful as defined by regulation; loans criticized internally or designated as Special Mention; and loans specifically identified by management as impaired.

	The analysis of individual loans and analytical processes performed by management in the calculation of the allowance is ongoing, and adjustments may be made based on the assessment of internal and external influences on credit quality. Those influences include, but are not limited to: unemployment, delinquency and non-accrual rates, trends in loan volume, portfolio growth, portfolio concentrations, Board and loan review oversight, exceptions to policy, competition and other external factors, and/or changes in value of collateral dependent loans.

	The Company evaluates economic conditions and reviews borrower financial results, collateral values, and compliance with contractual payment terms and covenant requirements in order to monitor loan relationships. A classified loan is one which is paying as agreed, but based upon management’s analysis is determined to be inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified have a well-defined weakness or weaknesses that jeopardize the repayment of the debt. They are characterized by the distinct possibility that the Company will
	sustain some loss if the deficiencies are not corrected. All classified loans are evaluated to determine whether they are non-performing or whether it is probable they will become non-performing, based on facts and circumstances.

	When management believes that the collection of all or a portion of principal and interest is no longer probable, the loan is placed on non-performing status, accrual of interest is suspended, and payments for interest are applied to principal until the Company determines that all remaining principal and interest can be recovered. This may occur at any time regardless of delinquency, however, loans 90 days or more past due are reviewed monthly to determine whether the accrual of interest should continue. Because all or a portion of the contractual cash flows are not expected to be collected in accordance with the underlying loan agreements, the loan is considered to be impaired, and the Company estimates and records impairment based upon the present value of the expected cash flows it will be able to collect.

	Values of collateral securing customer loans are confirmed through regular updates and reviews, but at a minimum are updated every twelve months for all loans designated as Special Mention or Classified, every six to nine months for land loans. During the period between appraisal order and completion, management makes an estimate of collateral values based on available market information and other recent appraisal results.

	Specific Reserves

	Specific reserves are an estimation of losses specific to individual impaired loans. All non-performing and restructured loans are evaluated to determine the amount of specific reserve or the required charge-off, if any, to reduce the current carrying value of the individual loan to its net realizable value based on an analysis of the available sources of repayment, including liquidation of collateral. The net realizable value is estimated as the present value of expected future cash flows discounted at the loan’s effective interest rate, the observable market price if the loan is expected to be sold, or, if collateral dependent, the estimated fair value of the collateral less costs to sell based on recent appraisals. A specific reserve may be established instead of a charge-off when sufficient information exists to make a reasonable estimate of the loss but where a loss event has not yet been confirmed. While every impaired loan is individually evaluated, not every impaired loan requires a specific reserve. Specific reserves fluctuate based on changes in the collectability of underlying loans and any previously recorded charge-offs. A confirmed loss event could be a payment delinquency of typically 90 days or greater, bankruptcy, fraud, death, or defunct status of a business, project or development. Impaired loans are excluded from the calculation of allocated reserves as described below.

	Charge-offs

	Commercial and industrial loans are charged-off in whole or in part when they become 90 or more days delinquent based upon the terms of the underlying loan contract and when full collectability of the principal balance is no longer probable. Because all or a portion of the contractual cash flows are not expected to be collected, the loan is considered to be impaired, and the Company estimates and records impairment based upon the present value of the expected cash flows it will be able to collect. Loans in bankruptcy and loans to defunct businesses are charged-off to the estimated fair value of collateral, less costs to sell.


	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Commercial real estate loans are charged-off in whole or in part when they become 90 or more days delinquent based upon the terms of the underlying loan contract and when a collateral deficiency exists. Because all or a portion of the contractual cash flows are not expected to be collected, the loan is considered to be impaired, and the Company estimates and records impairment based upon the expected cash flows it will be able to collect, which is generally from the liquidation of the pledged collateral. Loans in bankruptcy and loans to defunct projects or development businesses are charged-off to the estimated fair value of collateral, less costs to sell.

	Consumer loans are charged-off when they become non-performing, which is when they become 90 days or more past due. At that time, the amount of the estimated collateral deficiency, if any, is charged-off for loans secured by collateral, all other loans are charged-off in full. Loans in which the borrower is in bankruptcy are charged-off within 60 days of receipt of notification of the bankruptcy filing or within the timeframes specified in policy, whichever is shorter, unless it can be established that repayment is likely to occur. Loans with collateral are charged-down to the estimated fair value of collateral, less costs to sell.

	Allocated Reserves

	Allocated reserves represent an allowance for groups of homogeneous loans which are similar in nature and as such are not individually evaluated for impairment. Allocated reserves are applied to both the non-criticized and criticized and classified portions of each portfolio. The Company segregates the loan portfolio into strata based upon risk characteristics which reflect the behavior and performance of the underlying loans.

	Classified and criticized loans are stratified based upon underlying loan types and characteristics and are separately evaluated to determine the amount of reserve considered adequate. Loss factors are based on the loan type, performance trends, portfolio characteristics, risk, and assigned ratings.

	For pass-rated loans, an estimate of inherent loss is made by applying portfolio-specific environmental and historical loss factors to the period-end balances of each loan category. Environmental factors are applied in addition to historical loss factors to reflect trends which management believes are not fully incorporated in historical net charge-off ratios. Environmental factors include: unemployment, delinquency and non-accrual rates, trends in loan volume and portfolio growth, portfolio concentrations, Board and loan review oversight, exceptions to policy, experience of management, competition and other external factors, and changes in the fair value of collateral dependent loans. A historical loss factor is generated using actual losses for the preceding twelve quarters from the current quarter end. The loss percentages are weighted to utilize the most relevant and current loss experience.

	Unallocated Reserve

	The unallocated reserve addresses inherent losses not included elsewhere in the allowance. It represents an element in the adequacy of the allowance given the nature of the calculation and the inherent imprecision and uncertainty as to estimated losses.
PREMISES AND EQUIPMENT	Premises and Equipment

	Land is stated at cost. Buildings, equipment and leasehold improvements are stated at cost less accumulated depreciation and amortization which is generally computed on a straight-line basis over the estimated useful life of the asset. Leasehold improvements are amortized using the straight-line method over the lesser of the estimated economic life or the lease term. Depreciation and amortization expense for premises and equipment is included in premises and equipment expense in the consolidated statement of income.

	The Company leases certain premises and equipment under non-cancellable operating leases. Certain leases contain renewal options and rent escalation clauses calling for rent increases over the term of the lease. Rental expense for all leases which contain escalation clauses are accounted for on a straight-line basis over the lease term.

	Expenses for maintenance and repairs are recorded in premises and equipment expense in the consolidated statement of income as they are incurred.

ACCRUED INTEREST RECEIVABLE	Accrued Interest Receivable

	The Company records interest income on interest earning assets on the accrual basis which results in the recognition of interest income recorded in the consolidated statement of income before it is received. The consolidated balance sheet includes the amount of interest earned on the accrual basis of accounting but not yet received as of the date presented. The balance is primarily comprised of interest earned on loans to customers and dividends and interest on investment securities.
BANK OWNED LIFE INSURANCE	Bank Owned Life Insurance

	The Company invests in bank owned life insurance ("BOLI") policies that provide earnings to help cover the cost of employee benefit plans. The Company is the owner and beneficiary of the life insurance policies it purchased directly on a chosen group of employees or it obtained through acquisitions of other institutions that previously purchased the policies. The policies are carried on the Company’s consolidated balance sheet at their cash surrender value and are subject to regulatory capital requirements. The determination of the cash surrender value includes a full evaluation of the contractual terms of each policy and assumes the surrender of policies on an individual-life by individual-life basis. Additionally, the Company
	periodically reviews the creditworthiness of the insurance companies that have underwritten the policies. Earnings accruing to the Company are derived from the general account investments of the insurance companies. Increases in the net cash surrender value of BOLI policies and insurance proceeds received are not taxable and are recorded in non-interest income in the consolidated statement of income.
GOODWILL AND OTHER INTANGIBLE ASSETS	Goodwill and Other Intangible Assets

	Goodwill is recognized for the excess of the purchase price over the estimated fair value of acquired net assets in a business combination. Goodwill is not amortized but is reviewed for potential impairment on at least an annual basis, which the Company performs during the second quarter of each year. The Company has the option of performing a qualitative assessment to determine whether it is more likely than not that the fair value of one of the Company’s identified reporting units is less than its carrying value. If the results of the qualitative assessment indicate the potential for impairment, the Company would perform the two-step goodwill impairment analysis.

	In performing the two-step goodwill impairment analysis, if necessary, the estimated fair value of each reporting unit is compared to its carrying value, inclusive of the goodwill assigned to it. If the carrying value of a reporting unit exceeds the estimated fair value, an indicator of goodwill impairment exists and a second step is performed to determine if any goodwill impairment exists. In the second step, the Company calculates the implied value of goodwill by emulating a business combination for each reporting unit. This step subtracts the estimated fair value of net assets in the reporting unit from the step one estimated fair value to determine the implied value of goodwill. If the implied value of goodwill exceeds the carrying value of goodwill allocated to the reporting unit, goodwill is not impaired, but if the implied value of goodwill is less than the carrying value of the goodwill allocated to the reporting unit, an impairment charge is recognized for the difference in the consolidated statement of income with a corresponding reduction to goodwill on the consolidated balance sheet. The Company’s business segments are its reporting units which are "Community Banking" and "Other" for purposes of the goodwill impairment analysis.

	In performing its analysis of goodwill impairment, the Company makes significant judgments, particularly with respect to estimating the fair value of each reporting unit and if the second step is required, estimating the fair value of net assets. The Company evaluates each reporting unit and estimates a fair value as though it were an acquirer. The estimates utilize historical data, cash flows, and market and industry data specific to each reporting unit. Industry and market data is used to develop material assumptions such as transaction multiples, required rates of return, control premiums, costs and synergies of a transaction, and capitalization.

	On an interim basis, the Company evaluates whether circumstances are present that could indicate potential impairment of its goodwill. These circumstances include, but are not limited to, prolonged trading value of the Company’s common stock relative to its book value, adverse changes in the business or legal climate, actions by regulators or loss of key personnel. When the Company determines that these or other circumstances are present, the Company tests the carrying value of goodwill for impairment at an interim date.



	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Other intangible assets are specifically identified intangible assets created from a business combination. Core deposit intangibles represent the value of checking, savings and other acquired, low-cost deposits. Core deposit intangibles are amortized over the lesser of the estimated lives of deposit accounts or ten years on an accelerated basis. Decreases in deposit lives may result in increased amortization and/or an impairment charge. Other intangible assets also include customer lists and covenants not to compete. These assets are amortized over the lesser of their contractual life or estimated economic life on a straight-line basis.
UNCONSOLIDATED INVESTMENTS UNDER THE EQUITY METHOD	Unconsolidated Investments Under the Equity Method

	The Company invests in partnerships and other non-consolidated businesses and, depending upon the nature and/or ownership interest held, may elect to account for these investments using the equity method. The Company’s proportionate share of income or loss on equity method investments is recorded in non-interest income in the consolidated statement of income using the accrual basis of accounting. Cash received by the Company for dividends or distributions on these investments reduces the carrying value of the equity method investment on the consolidated balance sheet. These investments are reviewed at least annually for other-than-temporary declines below the investment’s carrying value. Consideration is given to a number of variables, including any expected tax credits or other similar benefits from each investment. Impairment charges are recorded as a reduction to the investment’s carrying value on the consolidated balance sheet and to non-interest income in the consolidated statement of income.
SECURITIES SOLD UNDER REPURCHASE AGREEMENTS	Repurchase Agreements

	The Company’s repurchase agreements are secured borrowing transactions collateralized by investment securities. The Company sells investment securities to counterparties for cash with an agreement to repurchase the exact or substantially the same securities at a specified date. On the trade date, the Company records a liability on the consolidated balance sheet for the amount for which securities will be subsequently reacquired, including accrued interest, based upon the contractual term of the transaction. Interest expense from repurchase agreements is recognized on the accrual basis of accounting in the consolidated statement of income.

	The securities underlying repurchase agreements are identified and disclosed as pledged for this purpose in the notes to the financial statements. The investment securities remain on the Company’s consolidated balance sheet and are accounted for consistent with the Company’s other investment securities available-for-sale. Repurchase agreements are satisfied by the payment of cash from the Company to the counterparty at which time the securities identified in the transaction are no longer considered pledged.
SENIOR LONG-TERM DEBT	Senior Long-term Debt

	On September 16, 2014, the Company issued $125 million aggregate principal amount of unsecured, fixed rate senior notes with a maturity date of September 30, 2024. The notes bear an annual fixed interest rate of 4.25%, and are payable, as to interest, on March 30th and September 30th of each year, commencing March 30, 2015. Interest expense related to the notes is recognized on the accrual basis of accounting in the consolidated statement of income.

	Issuance costs incurred in relation to the notes is being amortized over the life of the notes as an increase to interest expense in the consolidated statement of income using the interest method. The unamortized portion of the issuance costs is included within other assets on the consolidated balance sheet.
SUBORDINATED DEBENTURES	Subordinated Debentures

	The Company has four established statutory business Trusts: NPB Capital Trust III, NPB Capital Trust IV, NPB Capital Trust V and NPB Capital Trust VI (“Trusts”). The Company owns all of the common capital securities of the Trusts. The Trusts issued preferred capital securities to investors and invested the proceeds in junior subordinated debentures issued by the Company. These debentures are the sole assets of the Trusts, which are considered variable interest entities. The Company is not the variable interest holder, and as such does not consolidate the Trusts. The liabilities to the Trusts are reflected as subordinated debentures on the Company’s consolidated balance sheet, and the common capital securities are included in other assets. Interest is paid on amounts borrowed from the Trusts and recorded in interest expense in the consolidated statement of income on the accrual basis of accounting.


	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Costs related to the issuance of subordinated debentures are being amortized over the life of the instruments as an increase to interest expense in the consolidated statement of income using the interest method. The unamortized portion of the issuance costs is included within other assets on the consolidated balance sheet.

	The Company’s maximum exposure to the Trusts is $75 million, which is the Company’s liability to the Trusts.
	Details of the Company’s obligations to the Trusts as of December 31, 2014 are as follows:



	Trusts		Principal	Issued	Maturity	Interest Rate
	NPB Capital Trust III		$20.6 Million	February 20, 2004	April 23, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust IV		$20.6 Million	March 25, 2004	April 7, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust V		$20.6 Million	April 7, 2004	April 7, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust VI		$15.4 Million	January 19, 2006	March 15, 2036	3 mo. LIBOR + 1.38% margin
EMPLOYEE BENEFIT PLANS	Employee Benefit Plans

	The Company accrues for benefits to employees and executive officers resulting from established plans and other contracts which are generally non-contributory. The benefits associated with these arrangements and plans are earned over a service period, and the Company estimates the amount of expense applicable to each plan or contract and includes it in salaries, wages and employee benefits expense in the consolidated statement of income for each period. The estimated obligations for the plans and contracts are reflected as liabilities on the consolidated balance sheet. The determination of each obligation and the related expense is based upon formulas in plan documents or agreements, but also requires judgment on the part of the Company to determine the assumptions applied to each formula. In addition, for the non-contributory pension plan there are amounts included in accumulated other comprehensive income (loss) related to certain costs which require recognition over the course of several reporting periods.
INCOME TAXES	Income Taxes

	The Company accounts for income taxes under the asset and liability method. Deferred tax assets and liabilities are recorded on the consolidated balance sheet for future tax events that arise from the difference between the financial statement and tax basis of assets and liabilities as measured by the enacted tax rates. Changes in tax rates are recognized in the Company’s financial statements during the period they are enacted. When a deferred tax asset or liability, or a change thereto, is recorded on the consolidated balance sheet, deferred tax expense or benefit is recorded within the income tax expense line of the consolidated statement of income for purposes of determining the current period’s net income.

	Deferred tax assets are recorded on the consolidated balance sheet at net realizable value. The Company periodically performs an assessment to evaluate the amount of deferred tax assets it is more likely than not to realize. The realization of deferred tax assets is dependent upon the amount of taxable income expected in future periods, as tax benefits require taxable income to be realized. If a valuation allowance is required, the deferred tax asset on the consolidated balance sheet is reduced via a corresponding income tax expense in the consolidated statement of income.

	The Company recognizes the benefit of a tax position in the financial statements only after determining that the relevant tax authority would more likely than not sustain the position following an audit. For tax positions meeting the more likely than not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority. For these analyses, the Company may engage attorneys to provide opinions related to certain positions. Any interest and penalties related to uncertain tax positions, when applicable, is recognized in income tax expense in the consolidated statement of income.
FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK	Financial Instruments with Off-Balance-Sheet Risk

	The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include commitments to extend credit, standby letters of credit, forward sale commitments, and interest rate swaps. Certain of those instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized on the consolidated balance sheet. The contract or notional amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments.



	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	The Company’s exposure to credit loss in the event of non-performance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual notional amount of these instruments. The Company uses the same credit policies in making commitments and contractual obligations as it does for on-balance-sheet instruments. For interest rate swaps, the contract or notional amounts do not represent exposure to credit loss, but rather the credit risk is consistent with the estimated fair value due from counterparties to these contracts. The Company controls the credit risk of its interest rate swap agreements through credit approvals, limits and monitoring procedures. The Company reflects its estimate of credit risk for these instruments (including unfunded commitments, letters of credit, and interest rate swaps) in other liabilities on the consolidated balance sheet with the corresponding expense recorded in other operating expenses in the consolidated statement of income.

	Financial instruments that are derivatives are reported at estimated fair value within other assets or other liabilities on the consolidated balance sheet. An instrument is generally considered a derivative if it is based on one or more underlyings, no (or a minimal) initial net investment is required, and the contract can be net settled. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship. For derivatives not designated or qualifying as hedges, the gain or loss is included in the determination of net income. For derivatives designated and qualifying as hedges, only the ineffective portion is included in the determination of net income, the effective portion is included in the determination of net income consistent with the hedged item.

	The Company enters into interest rate swaps ("swaps") to facilitate customer transactions and meet their financing needs. These swaps are considered derivatives, but are not designated in hedging relationships. These instruments have interest rate and credit risk associated with them. To mitigate the interest rate risk, the Company enters into offsetting interest rate swaps with counterparties. The counterparty swaps are also considered derivatives and are also not designated in hedging relationships. Interest rate swaps are recorded within other assets or other liabilities on the consolidated balance sheet at their estimated fair value. Changes to the fair value of assets and liabilities arising from these derivatives are included, net, in other operating income in the consolidated statement of income.

	The Company may enter into interest rate swap contracts in order to hedge its exposure to the variability of cash flows on certain floating-rate obligations. Cash flow hedges are intended to convert liabilities from a floating-rate instrument to a fixed-rate instrument. The Company’s intention is to design cash flow hedges to qualify for hedge accounting, and as such the estimated fair value of the hedge would be recorded either in other assets or other liabilities with an offset, after estimated taxes, recorded in accumulated other comprehensive income (loss). The ineffective portion of the hedging relationship would be recorded in other operating expenses in the consolidated statement of income. Amounts would be reclassified from accumulated other comprehensive income (loss) to interest expense in the consolidated statement of income during the period the hedged item affects earnings. Cash flows associated with the hedges are treated consistently with the cash flows of the hedged item during the period in which they occur.

	The Company periodically enters into interest rate lock commitments with its mortgage loan customers whose loans are intended for sale after the loan is closed. These commitments are derivatives and, as such, are reported on the consolidated balance sheet at their estimated fair value. The Company’s methodology for estimating the fair value of these derivatives is based upon the change in pricing of mortgage-backed securities with similar interest rates and duration. To hedge the fair value risk associated with changing interest rates on these commitments, the Company enters into forward commitments to sell the loans. These hedges are economic hedges and are not designated in hedging relationships. The forward sale commitments are also derivatives and are recorded on the consolidated balance sheet at their estimated fair value. The Company’s methodology for valuing these derivatives is based upon the fair value of the closed loans and the change in fair value of the interest rate lock commitments, as previously described. The net change in the estimated fair value of the derivatives for commitments to customers and forward loan sale commitments during each period is recorded in mortgage banking income in the consolidated statement of income.



	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	The Company estimates the fair value of letters of credit as the fees paid by the customer or charged for the arrangement. The fair value is recorded in other liabilities on the consolidated balance sheet, and subsequently, the income is recognized in other operating income within non-interest income in the consolidated statement of income over the contractual life of the instrument. If required to perform on a standby letter of credit, the Company records an amount due from the customer, which is recorded net of any unaccreted liability. Additional amounts estimated to be uncollectible, net of estimated proceeds from collateral, are charged-off against the appropriate allowance on the consolidated balance sheet.

	Interest rate swap derivatives with the same counterparty and subject to master netting arrangements are not offset on the consolidated balance sheet. For additional detail refer to Footnote 14 within this section.
ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME	Accumulated Other Comprehensive Income

	Accumulated other comprehensive income ("AOCI") includes items that are subject to periodic measurement on the consolidated balance sheet but are not included in the determination of net income for the period in the consolidated statement of income. As such, amounts recorded in AOCI are on an after-tax basis and consist primarily of unrealized gains or losses on investment securities available-for-sale, unamortized unrealized gains or losses on investment securities reclassified from available-for-sale to held-to-maturity, and changes in pension obligations.
SHARE-BASED COMPENSATION	Share-Based Compensation

	The Company has certain share-based employee and director compensation plans. The related share-based employee compensation is included in salaries, wages and employee benefits expense in the consolidated statement of income during the period in which it is earned. Share-based director compensation expense is included in other operating expense in the consolidated statement of income. The compensation cost for share-based compensation arrangements is determined based upon the estimated fair value of the award at the grant date and is recognized as an expense over the service period. Performance criteria for share-based awards are factored into the amount of expense recognized when applicable. The Company records tax benefits of share-based payments as a financing cash inflow and corresponding operating cash outflow in the consolidated statement of cash flows during the period in which they occur.

	Option awards are granted with an exercise price at least equal to the market price of the Company’s stock at the date of grant. Option awards vest at such times as are determined by the Compensation Committee of the Board of Directors at the time of grant, but not before one year from the date of grant or later than five years from the date of grant. The options have a maximum term of ten years for incentive stock options or ten years, one month for non-qualified stock options.

	The Company utilizes the Black-Scholes option valuation model to estimate the fair value of options granted. The model is sensitive to changes in assumptions which can materially affect the fair value estimate:


	•	The risk-free interest rates used are from published U.S. Treasury zero-coupon rates for bonds approximating the expected term of the option as of the option grant date;


	•	The expected dividend yield is computed based on the Company’s current dividend rate; and


	•	The Company relies exclusively on historical volatility as an input for determining the estimated fair value of stock options. The Company determines expected volatility based on the expected life of the option.

	In determining the expected life of the option grants, the Company observes the actual terms of prior grants with similar characteristics and the actual vesting schedule of the grants.

	Share-based payments are also granted in the form of restricted stock awards or units. Restricted stock is granted with service criteria and may also include performance criteria. The fair value of each award is estimated based on the fair value of the Company’s common stock on the date of grant.

	Share-based payment plans are further described in Footnote 18 within this section.
TREASURY STOCK	Treasury Stock

	Shares of the Company’s common stock which are repurchased on the open market are classified as treasury stock on the consolidated balance sheet. Treasury stock is recorded at the cost at which it was obtained in the open market, and at the date of reissuance, treasury stock on the consolidated balance sheet is reduced by the cost for which it was purchased using specific identification, on a first-in, first-out basis.
EARNINGS PER SHARE	Earnings Per Share

	Earnings per share is calculated on the basis of the weighted-average number of common shares outstanding during the year. All per share information in the financial statements is adjusted retroactively for the effect of stock dividends and splits.

	Diluted shares and earnings per share take into account the potential dilution that could occur if securities or other contracts to issue common stock were exercised and converted into common stock. The dilutive effect of stock options, warrants, and other instruments is calculated using the treasury stock method.
RECENT ACCOUNTING PRONOUNCEMENTS	Recent Accounting Pronouncements

	Goodwill

	In September 2011, the Federal Accounting Standard Board ("FASB") simplified how entities test goodwill for impairment, whereby an entity has the option to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after its assessment, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, it would not have to perform the current two-step goodwill impairment test. This amendment was effective for the Company for its fiscal year beginning January 1, 2012 and the adoption of this standard did not have a material effect on the financial condition or results of operations of the Company.

	Comprehensive Income

	In June 2011, the FASB released a standard requiring comprehensive income to be presented either in a single continuous statement or in two separate but consecutive statements. The single continuous statement format combines other comprehensive income, its components and total comprehensive income with the consolidated statement of income. In the two statement approach, the first statement would be the statement of income immediately followed by a separate statement which includes the components of other comprehensive income, total other comprehensive income and total comprehensive income. The standard was effective for the Company beginning January 1, 2012 and requires retrospective application.

	In February 2013, the FASB released guidance on disclosures about reclassifications out of accumulated other comprehensive income. The issuance of this guidance now requires entities to disclose:


	•	For items reclassified out of accumulated other comprehensive income ("AOCI") and into net income in their entirety, the effect of the reclassification on each affected net income line item; and


	•	For AOCI reclassification items not reclassified in their entirety into net income, a cross reference to the related footnote where additional information on the effect of the reclassification is disclosed.

	The adoption of this disclosure requirement did not materially impact the Company's financial condition or result of operations.

	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Balance Sheet Offsetting

	In January 2013, the FASB updated the disclosure requirements surrounding the offsetting of assets and liabilities on an entity's balance sheet. As part of the updated requirements, an entity shall disclose information to enable users of its financial statements to evaluate the effect or potential effect of rights of setoff associated with recognized derivatives, repurchase agreements, reverse repurchase agreements, and securities lending or securities borrowing transactions that are either (1) offset in the balance sheet or (2) subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset on the balance sheet. The Company adopted this guidance for the year ended December 31, 2013. Adoption of this guidance did not materially impact the Company's financial condition or results of operations, however did result in additional disclosures.

	Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists

	In July 2013, the FASB issued explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance requires, with limited exception, that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a DTA for a net operating loss carryforward, or similar tax loss, or a tax credit carryforward. The new guidance is effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013. As this guidance only impacts financial statement presentation and related footnote disclosures, it will have no effect on the Company's financial position or results of operations.

	Troubled Debt Restructurings by Creditors

	In January 2014, the FASB issued guidance to clarify when banks should reclassify mortgage loans collateralized by residential real estate properties from the loan portfolio to other real estate owned. The FASB defined an in-substance repossession or foreclosure to have occurred and a creditor is considered to have taken physical possession of residential real estate collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) 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. The effective date is for annual periods, and interim periods within those annual periods, beginning after December 15, 2014, with early adoption permitted. The Company does not expect adoption of this guidance to have a material effect on the financial condition or results of operations of the Company.

	In August 2014, the FASB issued a standard which will require creditors to derecognize certain foreclosed government-guaranteed mortgage loans and to recognize a separate other receivable that is measured at the amount the creditor expects to recover from the guarantor, and to treat the guarantee and the receivable as a single unit of account. The standard is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. The Company does not expect adoption of this guidance to have a material effect on the financial condition or results of operations of the Company.

	Revenue from Contracts with Customers

	The amendments in this update replaces the existing revenue recognition guidance, including most industry-specific revenue recognition guidance. The standard creates a single, principle-based revenue recognition framework and will require entities to apply significantly more judgment and expanded disclosures surrounding revenue recognition. The core principle requires an entity to recognize revenue in a manner that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard applies to contracts with customers to provide goods and services, with certain exclusions such as lease contracts, financing arrangements, and financial instruments. The amendments in this standard are effective for fiscal years beginning after December 15, 2016. The amendments can be adopted using either the full retrospective approach or a modified retrospective approach. Early adoption is prohibited. The Company's does not expect this guidance to have a material impact on its financial position or results of operations.

	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern

	Issued in August 2014, this standard provides guidance about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. This standard is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. As this guidance only impacts disclosures, it will have no effect on the Company's financial position or results of operations.

BUSINESS_COMBINATIONS_Tables

BUSINESS COMBINATIONS (Tables)	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The following table summarizes the amounts recorded on the consolidated balance sheets, and the resultant goodwill recorded at the acquisition date:


	(dollars in thousands)
	Fair value of consideration paid:	Estimated Fair Value at Acquisition

	Common stock issued	$	77,258

	Cash consideration	58,438

	Total consideration paid	135,696


	Fair value of identifiable assets acquired:
	Cash and cash equivalents	28,986

	Investment securities	124,325

	Accrued interest receivable and other assets	48,065

	Loans	595,241

	Core deposits intangible asset	4,760

	Total identifiable assets acquired	801,377


	Fair value of liabilities assumed:
	Deposits	658,432

	FHLB borrowings	45,999

	Other liabilities	5,214

	Total liabilities assumed	709,645


	Net identified assets acquired at fair value	91,732

	Goodwill recognized	$	43,964

EARNINGS_PER_SHARE_Tables

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The components of the Company’s basic and diluted earnings per share are as follows:


	(dollars in thousands)	Year Ended December 31,
		2014		2013		2012
	Net income	$	98,706	$	53,387	$	98,910

	Calculation of shares

	Weighted average basic shares	141,281,690		145,602,670		150,566,098

	Dilutive effect of share-based compensation	541,917		441,388		293,897

	Weighted average fully diluted shares	141,823,607		146,044,058		150,859,995

	Earnings per share

	Basic	$	0.7	$	0.37	$	0.66

	Diluted	$	0.7	$	0.37	$	0.66

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following stock options were excluded from the computation of earnings per share as they were anti-dilutive:


		Year Ended December 31,
		2014		2013		2012
	Stock options	1,948,027		3,429,793		4,322,167

	Exercise price

	Low	$	8.69	$	8.69	$	7.07

	High	$	21.49	$	21.49	$	21.49

INVESTMENT_SECURITIES_Tables

INVESTMENT SECURITIES (Tables)	12 Months Ended
	Dec. 31, 2014																							Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Amortized cost, gross unrealized gains and losses, and fair value of investment securities	The amortized cost, gross unrealized gains and losses, and fair values of the Company’s investment securities at December 31, 2014 are summarized as follows:

																								(dollars in thousands)	Amortized		Gross		Gross			Fair
	(dollars in thousands)		Amortized				Gross			Gross				Fair											Cost		Unrealized		Unrealized			Value
			Cost				Unrealized			Unrealized				Value													Gains		Losses
							Gains			Losses														Available-for-Sale
	Available-for-Sale
	U.S. Government agencies		$	1,000			$	7		$	—			$	1,007									U.S. Government agencies	$	1,000	$	—	$	(10	)	$	990

	State and municipal bonds		63,674				4,488			(82		)		68,080										State and municipal bonds	210,680		7,701		(3,670		)	214,711

	Agency mortgage-backed securities/collateralized mortgage obligations		1,442,102				19,234			(9,875		)		1,451,461										Agency mortgage-backed securities/collateralized mortgage obligations	1,683,092		18,040		(41,952		)	1,659,180

	Corporate securities and other		4,109				600			(348		)		4,361										Non-agency collateralized mortgage obligations	4,222		44		(8		)	4,258

	Marketable equity securities		3,583				2,169			—				5,752										Corporate securities and other	9,517		646		(495		)	9,668

	Total		$	1,514,468			$	26,498		$	(10,305	)		$	1,530,661									Marketable equity securities	3,583		1,717		—			5,300

																								Total	$	1,912,094	$	28,148	$	(46,135	)	$	1,894,107

			Carrying				Gross			Gross				Fair
			Value (j)				Unrealized			Unrealized				Value											Amortized		Gross		Gross Unrealized Losses			Fair Value
							Gains			Losses															Cost		Unrealized
	Held-to-Maturity																										Gains
																								Held-to-Maturity
	U.S. Government agencies		$	3,869			$	55		$	—			$	3,924
																								State and municipal bonds	$	403,344	$	13,028	$	(895	)	$	415,477
	State and municipal bonds		551,627				24,480			(63		)		576,044
																								Agency mortgage-backed securities/collateralized mortgage obligations	34,843		1,624		—			36,467
	Agency mortgage-backed securities/collateralized mortgage obligations		364,100				5,098			(694		)		368,504
																								Non-agency collateralized mortgage obligations	258		—		—			258
	Corporate securities and other		1,446				21			(4		)		1,463
																								Total	$	438,445	$	14,652	$	(895	)	$	452,202
	Total		$	921,042			$	29,654		$	(761	)		$	949,935


	(j) For securities which were transferred from the available-for-sale category to held-to maturity, the carrying value of the transferred securities represents their fair value at the date of transfer adjusted for subsequent amortization. The carrying value of all other held-to-maturity securities represents their amortized cost.
Realized Gain (Loss) on Investments	Gains and losses from sales of investment securities are as follows:


	(dollars in thousands)		For the Year Ended December 31,
			2014				2013			2012
	Gains		$	142			$	54		$	16

	Losses		(121		)		—			(135		)

	Net gains (losses) on sales of investment securities		$	21			$	54		$	(119	)

Investment securities in a continuous unrealized loss position	The table below indicates the length of time individual securities have been in a continuous unrealized loss position at December 31, 2014 and December 31, 2013, respectively.


	31-Dec-14
						Less than 12 months							12 months or longer						Total
	(dollars in thousands)		No. of Securities			Fair			Unrealized Losses				Fair			Unrealized Losses			Fair		Unrealized Losses
						Value							Value						Value
	State and municipal bonds		29			$	9,166		$	(47	)		$	10,572		$	(98	)	$	19,738	$	(145	)

	Agency mortgage-backed securities/collateralized mortgage obligations		123			250,975			(1,763		)		296,419			(8,806		)	547,394		(10,569		)

	Corporate securities and other		3			1,010			(4		)		1,150			(348		)	2,160		(352		)

	Total		155			$	261,151		$	(1,814	)		$	308,141		$	(9,252	)	$	569,292	$	(11,066	)




	31-Dec-13
						Less than 12 months							12 months or longer						Total
	(dollars in thousands)		No. of Securities			Fair			Unrealized Losses				Fair			Unrealized Losses			Fair		Unrealized Losses
						Value							Value						Value
	U.S. Government agencies		1			$	990		$	(10	)		$	—		$	—		$	990	$	(10	)

	State and municipal bonds		145			76,402			(2,282		)		20,708			(2,283		)	97,110		(4,565		)

	Agency mortgage-backed securities/collateralized mortgage obligations		241			953,423			(33,990		)		115,815			(7,962		)	1,069,238		(41,952		)

	Non-agency collateralized mortgage obligations		5			820			(8		)		—			—			820		(8		)

	Corporate securities and other		5			1,966			(35		)		2,708			(460		)	4,674		(495		)

	Total		397			$	1,033,601		$	(36,325	)		$	139,231		$	(10,705	)	$	1,172,832	$	(47,030	)

Investment securities pledged as collateral	The fair value of investment securities pledged as collateral are presented below:


	(dollars in thousands)		December 31,
			2014				2013
	Deposits		$	1,038,073			$	966,751

	Customer repurchase agreements		662,737				595,761

	Repurchase agreements		—				54,866

	Other		75,939				81,408

	Total		$	1,776,749			$	1,698,786

Expected maturities of investment securities

	(dollars in thousands)	Available-for-Sale							Held-to-Maturity
		Amortized Cost				Fair			Carrying Value				Fair
						Value							Value
	Due in one year or less	$	4,727			$	4,891		$	908			$	916

	Due after one through five years	60,060				64,729			20,114				20,298

	Due after five through ten years	151,872				157,267			231,023				239,890

	Due after ten years	1,294,226				1,298,022			668,997				688,831

	Marketable equity securities	3,583				5,752			—				—

	Total	$	1,514,468			$	1,530,661		$	921,042			$	949,935

LOANS_Tables

LOANS (Tables)	12 Months Ended
	Dec. 31, 2014
Loans and Leases Receivable Disclosure [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	The following table summarizes loans outstanding, net of unearned income:


	December 31, 2014

	(dollars in thousands)	Originated Loans				Acquired Loans				Total
	Commercial and industrial	$	2,548,438			$	51,429			$	2,599,867


	CRE - permanent	1,092,006				137,312				1,229,318

	CRE - construction	196,554				6,988				203,542

	Commercial real estate	1,288,560				144,300				1,432,860


	Residential mortgages	654,617				253,740				908,357

	Home equity	783,248				130,582				913,830

	All other consumer	287,224				141				287,365

	Consumer	1,725,089				384,463				2,109,552


	Loans	$	5,562,087			$	580,192			$	6,142,279


	The carrying amount of acquired loans at December 31, 2014 totaled $580 million, including $7.6 million of loans acquired with deteriorated credit quality, or purchased credit-impaired ("PCI") loans. PCI loans are accounted for in accordance with ASC 310-30. The Company continues to evaluate the credit performance of the PCI loan portfolio and its potential resolution, which may include individual and/or bulk loan settlements.
ScheduleOfCarryingAmountsOfPurchasedCreditImpairedLoansAtAcquisitionTableTextBlock [Text Block]	The following table reflects amounts at acquisition for PCI loans:


	(dollars in thousands)	As of October 24, 2014
	Contractually required principal cash flows at acquisition	$	13,807

	Contractually required interest cash flows at acquisition	4,637

	Total contractually required cash flows at acquisition	18,444

	Contractually required principal cash flows not expected to be collected	(6,161		)
	Contractually required interest cash flows not expected to be collected	(2,949		)
	Total contractually required cash flows not expected to be collected	(9,110		)
	Expected cash flows at acquisition	9,334

	Accretable yield	(1,688		)
	Fair value of acquired loans	$	7,646

ScheduleOfChangesInAccretableYieldsOfPurcahsedCreditImpairedLoansTableTextBlock [Text Block]	The following table provides a summary of the change in accretable yield for PCI loans:


	(dollars in thousands)	Year Ended December 31, 2014
	Accretable yield, beginning balance	$	—

	Acquisition of impaired loans	1,688

	Accretable yield amortized to interest income	(140		)
	Reclassification from non-accretable difference	—

	Accretable yield, end of period	$	1,548

Loan and lease classifications	The following tables present classifications for originated loans:



	December 31, 2014	Performing												Non-Performing
	(dollars in thousands)	Pass Rated				Special Mention				Classified								Total
	Commercial and industrial	$	2,431,251			$	24,129			$	70,765			$	22,293			$	2,548,438


	CRE - permanent	1,065,916				4,351				13,307				8,432				1,092,006

	CRE - construction	182,554				701				5,186				8,113				196,554

	Commercial real estate	1,248,470				5,052				18,493				16,545				1,288,560


	Residential mortgages	640,344				—				314				13,959				654,617

	Home equity	778,611				—				335				4,302				783,248

	All other consumer	280,975				—				4,256				1,993				287,224

	Consumer	1,699,930				—				4,905				20,254				1,725,089


	Originated loans	$	5,379,651			$	29,181			$	94,163			$	59,092			$	5,562,087


	Percent of originated loans	96.73		%		0.52		%		1.69		%		1.06		%		100		%

	December 31, 2013	Performing												Non-Performing

	(dollars in thousands)	Pass Rated				Special Mention				Classified								Total
	Commercial and industrial	$	2,327,344			$	38,873			$	79,179			$	15,268			$	2,460,664


	CRE - permanent	944,589				9,191				36,272				4,786				994,838

	CRE - construction	167,710				2,962				15,534				12,128				198,334

	Commercial real estate	1,112,299				12,153				51,806				16,914				1,193,172


	Residential mortgages	636,829				—				2,243				13,153				652,225

	Home equity	757,064				—				137				5,407				762,608

	All other consumer	256,957				160				5,633				1,849				264,599

	Consumer	1,650,850				160				8,013				20,409				1,679,432


	Loans	$	5,090,493			$	51,186			$	138,998			$	52,591			$	5,333,268


	Percent of loans	95.45		%		0.96		%		2.6		%		0.99		%		100		%

	Loans include overdrafts of $1.0 million at December 31, 2014 and $1.1 million at December 31, 2013.

	Unamortized loan origination costs, net of fees, were $7.2 million and $5.8 million at December 31, 2014 and 2013, respectively, and are included in the stated balance of loans on the Company's balance sheets.




5. LOANS - Continued

The following tables present classifications for acquired loans:



December 31, 2014	Performing
(dollars in thousands)	Pass Rated				Special Mention				Classified				PCI				Total
Commercial and industrial	$	49,091			$	697			$	418			$	1,223			$	51,429


CRE - permanent	122,952				7,840				1,409				5,111				137,312

CRE - construction	6,931				—				—				57				6,988

Commercial real estate	129,883				7,840				1,409				5,168				144,300


Residential mortgages	252,454				—				31				1,255				253,740

Home equity	130,552				—				30				—				130,582

All other consumer	141				—				—				—				141

Consumer	383,147				—				61				1,255				384,463


Acquired loans	$	562,121			$	8,537			$	1,888			$	7,646			$	580,192


Percent of acquired loans	96.88		%		1.47		%		0.33		%		1.32		%		100		%

The Company did not have any acquired loans at December 31, 2013.
Past due loans and leases	The following table represents the details for past due loans:



	December 31, 2014	Past Due and Still Accruing																Accruing Current Balances				PCI Loans			Non-Accrual			Total Balances
	(dollars in thousands)	30-59 Days				60-89 Days				90 Days or				Total											Balances (l)
										More (k)
	Commercial and industrial	$	738			$	369			$	137			$	1,244			$	2,575,469			$	1,223		$	21,931		$	2,599,867


	CRE - permanent	2,052				286				57				2,395				1,213,897				5,111			7,915			1,229,318

	CRE - construction	425				—				—				425				194,947				57			8,113			203,542

	Commercial real estate	2,477				286				57				2,820				1,408,844				5,168			16,028			1,432,860


	Residential mortgages	6,013				1,363				304				7,680				891,716				1,255			7,706			908,357

	Home equity	4,596				579				365				5,540				904,864				—			3,426			913,830

	All other consumer	3,039				657				1,320				5,016				280,603				—			1,746			287,365

	Consumer	13,648				2,599				1,989				18,236				2,077,183				1,255			12,878			2,109,552


	Loans	$	16,863			$	3,254			$	2,183			$	22,300			$	6,061,496			$	7,646		$	50,837		$	6,142,279


	Percent of loans	0.27		%		0.05		%		0.04		%		0.36		%						0.12		%	0.83		%


	December 31, 2013	Past Due and Still Accruing																Accruing Current Balances				PCI Loans			Non-Accrual
	(dollars in thousands)	30-59 Days				60-89 Days				90 Days or More (k)				Total											Balances (l)			Total Balances
	Commercial and industrial	$	3,362			$	1,520			$	11			$	4,893			$	2,440,836			$	—		$	14,935		$	2,460,664


	CRE - permanent	6,191				181				—				6,372				984,208				—			4,258			994,838

	CRE - construction	373				—				—				373				185,833				—			12,128			198,334

	Commercial real estate	6,564				181				—				6,745				1,170,041				—			16,386			1,193,172


	Residential mortgages	4,509				774				2,197				7,480				637,708				—			7,037			652,225

	Home equity	4,383				1,101				140				5,624				752,197				—			4,787			762,608

	All other consumer	2,761				814				1,118				4,693				258,175				—			1,731			264,599

	Consumer	11,653				2,689				3,455				17,797				1,648,080				—			13,555			1,679,432


	Loans	$	21,579			$	4,390			$	3,466			$	29,435			$	5,258,957			$	—		$	44,876		$	5,333,268


	Percent of loans	0.4		%		0.08		%		0.07		%		0.55		%									0.84		%


	(k) Loans 90 days or more past due remain on accrual status if they are well secured and collection of all principal and interest is probable.
	(l) At December 31, 2014, non-accrual balances included troubled debt restructurings of $14.0 million of commercial real estate loans, $8.2 million of commercial and industrial loans, and $3.4 million of consumer loans. At December 31, 2013, non-accrual balances included troubled debt restructurings of $6.5 million of commercial real estate loans, $7.7 million of commercial and industrial loans, and $3.0 million of consumer loans.
Changes in the allowance for loan and lease losses by loan portfolio	Changes in the allowance for loan losses are summarized as follows:


	(dollars in thousands)	Year Ended December 31,
		2014				2013				2012
	Beginning allowance	$	96,367			$	110,955			$	126,640

	Provision for loan losses	5,751				5,250				8,000

	Recoveries	5,578				5,155				4,813

	Charge-offs	(17,021		)		(24,993		)		(28,498		)
	Net Charge-offs	(11,443		)		(19,838		)		(23,685		)
	Ending allowance	$	90,675			$	96,367			$	110,955



	5. LOANS - Continued

	Additional details for changes in the allowance for loan losses by loan portfolio for originated loans are as follows:


	31-Dec-14

	(dollars in thousands)	Commercial and Industrial (m)				Commercial Real Estate (n)				Consumer (o)				Unallocated				Total
	Allowance for loan losses:

	Beginning balance	$	41,288			$	22,653			$	21,478			$	10,948			$	96,367

	Charge-offs	(5,006		)		(2,746		)		(9,269		)		—				(17,021		)

	Recoveries	2,325				1,136				2,117				—				5,578

	Provision	1,375				(2,347		)		7,064				(341		)		5,751

	Ending balance	$	39,982			$	18,696			$	21,390			$	10,607			$	90,675

	Allowance for loan losses:

	Individually evaluated for impairment	$	7,165			$	3,906			$	1,998			$	—			$	13,069

	Collectively evaluated for impairment	32,817				14,790				19,392				10,607				77,606

	Total allowance for loan losses	$	39,982			$	18,696			$	21,390			$	10,607			$	90,675

	Originated loans:

	Individually evaluated for impairment	$	22,384			$	19,295			$	20,298			$	—			$	61,977

	Collectively evaluated for impairment	2,526,054				1,269,265				1,704,791				—				5,500,110

	Total originated loans	$	2,548,438			$	1,288,560			$	1,725,089			$	—			$	5,562,087


	31-Dec-13

	(dollars in thousands)	Commercial and Industrial (m)				Commercial Real Estate (n)				Consumer (o)				Unallocated				Total
	Allowance for loan losses:

	Beginning balance	$	46,151			$	29,295			$	23,101			$	12,408			$	110,955

	Charge-offs	(14,164		)		(2,421		)		(8,408		)		—				(24,993		)

	Recoveries	2,014				1,142				1,999				—				5,155

Provision	7,287				(5,363		)		4,786				(1,460		)		5,250

Ending balance	$	41,288			$	22,653			$	21,478			$	10,948			$	96,367

Allowance for loan losses:

Individually evaluated for impairment	$	3,997			$	2,487			$	1,820			$	—			$	8,304

Collectively evaluated for impairment	37,291				20,166				19,658				10,948				88,063

Total allowance for loan losses	$	41,288			$	22,653			$	21,478			$	10,948			$	96,367

Originated loans:

Individually evaluated for impairment	$	15,268			$	21,995			$	20,453			$	—			$	57,716

Collectively evaluated for impairment	2,445,396				1,171,177				1,658,979				—				5,275,552

Total originated loans	$	2,460,664			$	1,193,172			$	1,679,432			$	—			$	5,333,268


(m) Commercial includes all C&I loans, including those secured by real estate.
(n) CRE is defined as loans secured by non-owner occupied real estate which have a primary source of repayment of third-party rental income or the sale of the property securing the loan.
(o) Consumer loans include direct consumer loans, indirect consumer loans, consumer lines of credit, and overdrafts.
Impaired and restructured loans and lease losses	Impaired loan details are as follows and exclude loans acquired with deteriorated credit quality:


	December 31, 2014
		Recorded Investment
	(dollars in thousands)	With Related Allowance				Without Related				Total				Life-to-Date Charge-Offs				Total Unpaid Balances				Related Allowance
						Allowance
	Commercial and industrial	$	17,343			$	5,041			$	22,384			$	3,981			$	26,365			$	7,165


	CRE - permanent	9,062				2,120				11,182				7,821				19,003				2,574

	CRE - construction	7,585				528				8,113				970				9,083				1,332

	Commercial real estate	16,647				2,648				19,295				8,791				28,086				3,906


	Residential mortgages	5,894				8,109				14,003				457				14,460				1,503

	Home equity	850				3,452				4,302				436				4,738				295

	All other consumer	397				1,596				1,993				—				1,993				200

	Consumer	7,141				13,157				20,298				893				21,191				1,998


	Total	$	41,131			$	20,846			$	61,977			$	13,665			$	75,642			$	13,069


	December 31, 2013

		Recorded Investment
	(dollars in thousands)	With Related Allowance				Without Related Allowance				Total				Life-to-Date Charge-Offs				Total Unpaid Balances				Related Allowance
	Commercial and industrial	$	8,457			$	6,811			$	15,268			$	5,599			$	20,867			$	3,997


	CRE - permanent	5,995				3,872				9,867				6,441				16,308				1,073

	CRE - construction	9,729				2,399				12,128				6,633				18,761				1,414

	Commercial real estate	15,724				6,271				21,995				13,074				35,069				2,487


	Residential mortgages	6,088				7,109				13,197				800				13,997				1,589

	Home equity	609				4,798				5,407				515				5,922				203

	All other consumer	118				1,731				1,849				61				1,910				28

	Consumer	6,815				13,638				20,453				1,376				21,829				1,820


	Total	$	30,996			$	26,720			$	57,716			$	20,049			$	77,765			$	8,304




	5. LOANS - Continued

	Additional impaired loan details are as follow and exclude PCI loans:


		December 31,
	(dollars in thousands)	2014								2013								2012
	Average Recorded				Interest Income				Average Recorded				Interest Income				Average Recorded				Interest Income
	Investment				Recognized (p)				Investment				Recognized (p)				Investment				Recognized (p)
Commercial and industrial	$	12,792			$	17			$	25,838			$	77			$	31,392			$	12


CRE - permanent	7,720				24				9,584				31				7,352				215

CRE - construction	9,503				—				7,320				70				9,008				—

Commercial real estate	17,223				24				16,904				101				16,360				215


Residential mortgages	13,779				131				11,267				105				8,111				64

Home equity	4,845				14				4,994				11				3,507				8

All other consumer	1,877				13				1,758				1				1,987				—

Consumer	20,501				158				18,019				117				13,605				72


Total	$	50,516			$	199			$	60,761			$	295			$	61,357			$	299


(p) Interest income recognized for the years ended December 31, 2014, 2013, and 2012, primarily represent amounts earned on accruing TDRs.
Detail of loans which experienced troubled debt restructuring and are performing according to modified terms	The following table presents details of the Company's loans which experienced a troubled debt restructuring and are performing according to the modified terms. The Company's restructured loans are included within non-performing loans and impaired loans in the preceding tables.


	(dollars in thousands)	December 31,
		2014				2013
	Commercial and industrial	$	362			$	333

	CRE - permanent	517				528

	Residential mortgages	6,253				6,116

	Home equity	876				620

	All other consumer	247				118

	Total restructured loans	$	8,255			$	7,715


	Undrawn commitments to lend on restructured loans	$	—			$	—

Other Real Estate Owned and Repossessed Assets [Text Block]	Other real estate owned and repossessed assets are as follows:


	(dollars in thousands)	December 31,
		2014				2013
	Acquired other real estate owned	$	3,675			$	—

	Other real estate owned	753				892

	Repossessed assets	439				386

	Total other real estate and repossessed assets	$	4,867			$	1,278

PREMISES_AND_EQUIPMENT_Tables

PREMISES AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Major Classifications of Premises and Equipment	Major classifications of premises and equipment are summarized as follows:



	(dollars in thousands)		Estimated		Year Ended December 31,
			Useful Lives		2014			2013
	Land		Indefinite		$	17,176		$	14,739

	Buildings		5 to 40 years		105,080			101,626

	Equipment		3 to 10 years		122,212			111,670

	Leasehold improvements		2 to 20 years		28,064			10,905

	Equipment leased to customers		Economic life		2,828			3,796

	Total premises and equipment				275,360			242,736

	Accumulated depreciation				(158,946		)	(146,504		)
	Premises and equipment, net				$	116,414		$	96,232

Future Minimum Lease Payments	Future minimum payments under non-cancellable operating leases are due as follows:



	(dollars in thousands)
		Year Ended December 31,
		2015		$	7,218

		2016		6,619

		2017		5,985

		2018		5,669

		2019		5,100

		Thereafter		28,968

		Total		$	59,559

GOODWILL_AND_OTHER_INTANGIBLE_1

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	12 Months Ended
GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Components of Goodwill	The table below provides a roll-forward of the components of the Company’s goodwill for the year ended December 31, 2014.


			Year Ended											Year Ended
	(dollars in thousands)		December 31,											December 31,
			2013				Acquired			Impairment		Disposition		2014
	Goodwill		$	512,268			$	43,965		$	—	$	—	$	556,233
	Goodwill		$	512,268			$	43,965		$	—	$	—	$	556,233
	Accumulated impairment		(253,989		)		—			—		—		(253,989		)
	Accumulated impairment		(253,989		)		—			—		—		(253,989		)
	Goodwill, net		$	258,279			$	43,965		$	—	$	—	$	302,244
	Goodwill, net		$	258,279			$	43,965		$	—	$	—	$	302,244
Core Deposits and Other Intangibles and Related Amortization Expense	The table below presents the Company’s core deposit intangibles and other intangible assets and the related amortization expense.



	(dollars in thousands)	As of and for the Year Ended December 31,
		2014				2013			2012
	Core deposit and other intangible assets	$	8,757			$	6,854		$	10,614
	Core deposit and other intangible assets	$	8,757			$	6,854		$	10,614
	Amortization expense	2,856				3,761			5,156
	Amortization expense	2,856				3,761			5,156
Finite-lived Assets, Future Amortization Expense	At December 31, 2014, the Company's core deposit and other intangible assets were scheduled to amortize over the succeeding five fiscal years as follows:


	(dollars in thousands)	2015	$	2,656
	(dollars in thousands)	2015	$	2,656
		2016	1,967
		2016	1,967
		2017	1,380
		2017	1,380
		2018	770
		2018	770
		2019	581
		2019	581

DEPOSITS_Tables

DEPOSITS (Tables)	12 Months Ended
	Dec. 31, 2014
Deposits [Abstract]
Deposits, by type

		As of and for the Year Ended December 31,
	(dollars in thousands)	2014						2013
		Balance				Interest Expense		Balance		Interest Expense
	NOW accounts	$	1,913,399			$	2,561	$	1,655,425	$	2,310

	Money market accounts	1,827,233				3,716		1,670,035		4,460

	Savings accounts	678,294				563		526,576		546

	Time deposits less than $100	891,964				8,361		896,700		10,954

	Time deposits $100 or greater	333,697				3,342		353,791		4,109

	Total interest bearing deposits	5,644,587				18,543		5,102,527		22,379

	Non-interest bearing deposits	1,085,158				—		970,051		—

	Total deposits	$	6,729,745			$	18,543	$	6,072,578	$	22,379

Maturities of time deposits	At December 31, 2014, time deposits were scheduled to mature as follows:



	(dollars in thousands)	2015		$	740,514

		2016		176,328

		2017		107,054

		2018		47,552

		2019		153,926

		Thereafter		287

		Total		$	1,225,661

BORROWINGS_Tables

BORROWINGS (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of Maturities of Long-term Debt	FHLB advances mature as follows:



	(dollars in thousands)		Federal Home Loan
			Bank Advances
		2015	$	780,000

		2016	9,473

		2017	65,702

		2018	6,933

		2019	38,224

		Thereafter	10,046

		Total	$	910,378

Subordinated Debentures	Subordinated Debentures

	The Company has four established statutory business Trusts: NPB Capital Trust III, NPB Capital Trust IV, NPB Capital Trust V and NPB Capital Trust VI (“Trusts”). The Company owns all of the common capital securities of the Trusts. The Trusts issued preferred capital securities to investors and invested the proceeds in junior subordinated debentures issued by the Company. These debentures are the sole assets of the Trusts, which are considered variable interest entities. The Company is not the variable interest holder, and as such does not consolidate the Trusts. The liabilities to the Trusts are reflected as subordinated debentures on the Company’s consolidated balance sheet, and the common capital securities are included in other assets. Interest is paid on amounts borrowed from the Trusts and recorded in interest expense in the consolidated statement of income on the accrual basis of accounting.


	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Continued

	Costs related to the issuance of subordinated debentures are being amortized over the life of the instruments as an increase to interest expense in the consolidated statement of income using the interest method. The unamortized portion of the issuance costs is included within other assets on the consolidated balance sheet.

	The Company’s maximum exposure to the Trusts is $75 million, which is the Company’s liability to the Trusts.
	Details of the Company’s obligations to the Trusts as of December 31, 2014 are as follows:



	Trusts		Principal		Issued		Maturity	Interest Rate
	NPB Capital Trust III		$20.6 Million		February 20, 2004		April 23, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust IV		$20.6 Million		March 25, 2004		April 7, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust V		$20.6 Million		April 7, 2004		April 7, 2034	3 mo. LIBOR + 2.75% margin
	NPB Capital Trust VI		$15.4 Million		January 19, 2006		March 15, 2036	3 mo. LIBOR + 1.38% margin
Schedule of Debt

		As of December 31,
	(dollars in thousands)	2014				2013
	Customer repurchase agreements	607,705				551,736

	Repurchase agreements	—				50,000

	Federal Home Loan Bank advances	910,378				603,232

	Senior long-term debt	125,000				—

	Subordinated debentures	77,321				77,321

	Total borrowings and other debt obligations	$	1,720,404			$	1,282,289

ACCUMULATED_OTHER_COMPREHENSIV1

ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)	12 Months Ended
	Dec. 31, 2014
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Components of accumulated other comprehensive loss, after-tax	Accumulated other comprehensive income (loss) was comprised of the following components, after tax:



	(dollars in thousands)	December 31,
		2014			2013			2012
	Unrealized gains (losses) on investment securities	$	8,236		$	(11,691	)	$	41,058

	Pension	(19,227		)	(9,466		)	(16,729		)
	Total accumulated other comprehensive (loss) income	$	(10,991	)	$	(21,157	)	$	24,329

BALANCE_SHEET_OFFSETTING_Table

BALANCE SHEET OFFSETTING (Tables)	12 Months Ended
	Dec. 31, 2014
Offsetting [Abstract]
Offsetting Assets and Liabilities [Table Text Block]	The following table presents information about financial instruments that are eligible for offset as of December 31, 2014 and December 31, 2013:



	31-Dec-14
	(dollars in thousands)
	Assets	Gross Amount		Gross Amounts Offset in the Balance Sheet			Net Amounts Presented in the Balance Sheet
	Derivatives - Interest Rate Swaps	$	546	$	—		$	546


	Liabilities
	Derivatives - Interest Rate Swaps	$	24,786	$	—		$	24,786


	December 31, 2013
	(dollars in thousands)
	Assets	Gross Amount		Gross Amounts Offset in the Balance Sheet			Net Amounts Presented in the Balance Sheet
	Derivatives - Interest Rate Swaps	$	5,718	$	—		$	5,718


	Liabilities
	Derivatives - Interest Rate Swaps	$	15,906	$	—		$	15,906

	Repurchase Agreements	50,000		—			50,000

	Total Liabilities	$	65,906	$	—		$	65,906

Schedule of Derivative Assets and Liabilities And Collateral Held By Counterparty [Table Text Block]	The following table represents a reconciliation of the net amounts of interest rate swap derivative assets and liabilities presented in the balance sheet to the net amounts that would result in the event of offset, by counterparty, as of December 31, 2014 and December 31, 2013:



	December 31, 2014
	(dollars in thousands)			Gross Amounts Not Offset in the Balance Sheet
	Assets	Net Amounts Presented in the Balance Sheet		Financial Instruments (q)			Cash Collateral (r)			Net Amount
	Counterparty A	$	536	$	(536	)	$	—		$	—

	All Other Counterparties	10		(10		)	—			—

	Total Assets	$	546	$	(546	)	$	—		$	—


	Liabilities
	Counterparty A	$	10,142	$	(536	)	$	(9,614	)	$	(8	)

	Counterparty B	7,378		—			(7,140		)	238

	Counterparty C	4,789		—			(4,590		)	199

	All Other Counterparties	2,477		(10		)	(2,481		)	(14		)

	Total Liabilities	$	24,786	$	(546	)	$	(23,825	)	$	415


	December 31, 2013
	(dollars in thousands)			Gross Amounts Not Offset in the Balance Sheet
	Assets	Net Amounts Presented in the Balance Sheet		Financial Instruments (q)			Cash Collateral (r)			Net Amount
	Counterparty A	$	4,996	$	(4,996	)	$	—		$	—

	All Other Counterparties	722		(328		)	(300		)	94

	Total Assets	$	5,718	$	(5,324	)	$	(300	)	$	94


	Liabilities
	Counterparty A	$	13,111	$	(4,996	)	$	(8,545	)	$	(430	)

	All Other Counterparties	2,795		(328		)	(1,960		)	507

	Total Liabilities	$	15,906	$	(5,324	)	$	(10,505	)	$	77


	(q) For interest rate swap assets, amounts represent any derivative liability fair values that could be offset in the event of default. For interest rate swap liabilities, amounts represent any derivative asset fair values that could be offset in the event of default.
	(r) Amounts represent cash collateral received or posted on interest rate swap transactions with financial institution counterparties.

FINANCIAL_INSTRUMENTS_WITH_OFF1

FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK (Tables)	12 Months Ended
FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK (Tables)	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Financial Instruments with Credit Risk	The notional amount of financial instruments whose contract amounts represent credit risk:


	(dollars in thousands)	As of December 31,
		2014			2013
	Commitments to extend credit	$	1,960,419		$	1,769,135
	Commitments to extend credit	$	1,960,419		$	1,769,135
	Commitments to fund mortgages	27,599			22,242
	Commitments to fund mortgages	27,599			22,242
	Commitments to sell mortgages to investors	20,228			15,349
	Commitments to sell mortgages to investors	20,228			15,349
	Letters of credit	152,714			142,246
	Letters of credit	152,714			142,246
Summary of Derivative Instruments by Hedge Designation	Summary information regarding interest rate swap derivative positions which were not designed in hedging relationships are as follows:


	(dollars in thousands)			Notional							Receive		Pay		Life
		Positions		Amount			Asset		Liability		Rate		Rate		(Years)
	December 31, 2014
	Receive fixed - pay floating interest rate swaps	165		$	596,252		$	24,786	$	546	4.64	%	2.28	%	5.89
	Receive fixed - pay floating interest rate swaps	165		$	596,252		$	24,786	$	546	4.64	%	2.28	%	5.89
	Pay fixed - receive floating interest rate swaps	165		596,252			546		24,786		2.28	%	4.64	%	5.89
	Pay fixed - receive floating interest rate swaps	165		596,252			546		24,786		2.28	%	4.64	%	5.89
	Interest rate swaps			$	1,192,504		$	25,332	$	25,332	3.46	%	3.46	%	5.89
	Interest rate swaps			$	1,192,504		$	25,332	$	25,332	3.46	%	3.46	%	5.89

	December 31, 2013
	December 31, 2013
	Receive fixed - pay floating interest rate swaps	148		$	502,833		$	15,906	$	5,718	4.58	%	2.31	%	5.96
	Receive fixed - pay floating interest rate swaps	148		$	502,833		$	15,906	$	5,718	4.58	%	2.31	%	5.96
	Pay fixed - receive floating interest rate swaps	148		502,833			5,718		15,906		2.31	%	4.58	%	5.96
	Pay fixed - receive floating interest rate swaps	148		502,833			5,718		15,906		2.31	%	4.58	%	5.96
	Interest rate swaps			$	1,005,666		$	21,624	$	21,624	3.45	%	3.45	%	5.96
	Interest rate swaps			$	1,005,666		$	21,624	$	21,624	3.45	%	3.45	%	5.96
Schedule of Derivative Activity	The following summarizes the Company's derivative activity as of and for the year ended December 31, 2014, 2013, and 2012:


				Income Statement Effect
			Balance Sheet Effect at	for the Year Ended
	Derivative Instruments		December 31, 2014	December 31, 2014

	Interest rate swaps		Increase to other assets/liabilities of $25.3 million.	No net effect on other operating income from offsetting $3.7 million change.

	Other derivatives:
	Interest rate locks		Increase to other assets of less than $0.1 million.	Increase to mortgage banking income of $0.1 million.
	Forward sale commitments		Increase to other liabilities of $0.2 million.	Decrease to mortgage banking income of $0.1 million.

				Income Statement Effect
			Balance Sheet Effect at	for the Year Ended
	Derivative Instruments		December 31, 2013	December 31, 2013

	Interest rate swaps		Increase to other assets/liabilities of $21.6 million.	No net effect on other operating income from offsetting $6.6 million change.

	Other derivatives:
	Interest rate locks		Increase to other liabilities of less than $0.1 million.	Decrease to mortgage banking income of $0.1 million.
	Forward sale commitments		Increase to other liabilities of $0.1 million.	Increase to mortgage banking income of $0.3 million.

				Income Statement Effect
			Balance Sheet Effect at	for the Year Ended
	Derivative Instruments		December 31, 2012	December 31, 2012

	Interest rate swaps		Increase to other assets/liabilities of $28.3 million.	No net effect on other operating income from offsetting $5.7 million change.

	Other derivatives:
	Interest rate locks		Increase to other assets of less than $0.1 million.	Decrease to mortgage banking income of $0.6 million.
	Forward sale commitments		Increase to other liabilities of $0.4 million.	Increase to mortgage banking income of $0.5 million.

FAIR_VALUE_MEASUREMENTS_AND_FA1

FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Financial assets and liabilities accounted for at fair value on a recurring basis	The following table sets forth the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis as of December 31, 2014 and December 31, 2013, by level 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.


	31-Dec-14	Total			Quoted Prices				Significant				Significant Unobservable Inputs
		Fair Value			in Active Markets for				Other Observable Inputs
					Identical Assets
	(dollars in thousands)				(Level 1)				(Level 2)				(Level 3)
	Assets
	U.S. Government agencies	$	1,007		$	—			$	1,007			$	—

	State and municipal bonds	68,080			—				68,080				—

	Agency mortgage-backed securities/ collateralized mortgage obligations	1,451,461			—				1,451,461				—

	Corporate securities and other	4,361			65				3,146				1,150

	Marketable equity securities	5,752			4,676				—				1,076

	Investment securities, available-for-sale	1,530,661			4,741				1,523,694				2,226


	Interest rate swap agreements	25,332			—				25,332				—

	Interest rate locks	30			—				30				—


	Total fair value of assets	$	1,556,023		$	4,741			$	1,549,056			$	2,226


	Liabilities

	Interest rate swap agreements	$	25,332		$	—			$	25,332			$	—

	Forward sale commitments	158			—				158				—

	Total fair value of liabilities	$	25,490		$	—			$	25,490			$	—


	31-Dec-13	Total			Quoted Prices				Significant				Significant Unobservable Inputs
		Fair Value			in Active Markets for				Other Observable Inputs
					Identical Assets
	(dollars in thousands)				(Level 1)				(Level 2)				(Level 3)
	Assets

	U.S. Government agencies	$	990		$	—			$	990			$	—

	State and municipal bonds	214,711			—				214,711				—

	Agency mortgage-backed securities/ collateralized mortgage obligations	1,659,180			—				1,659,180				—

	Non-agency collateralized mortgage obligations	4,258			—				4,258				—

	Corporate securities and other	9,668			61				4,922				4,685

	Marketable equity securities	5,300			4,241				—				1,059

	Investment securities, available-for-sale	1,894,107			4,302				1,884,061				5,744


	Interest rate swap agreements	21,624			—				21,624				—


	Total fair value of assets	$	1,915,731		$	4,302			$	1,905,685			$	5,744


Liabilities

Interest rate swap agreements	$	21,624		$	—			$	21,624			$	—

Forward sale commitments	84			—				84				—

Interest rate locks	42			—				42				—

Total fair value of liabilities	$	21,750		$	—			$	21,750			$	—

Activity for assets measured at fair value on recurring basis	The following table presents activity for investment securities measured at fair value on a recurring basis for the year ended December 31, 2014:



	(dollars in thousands)
		Beginning Balance			Gains/(Losses)				Gains/(Losses)				Purchases		Sales			Maturities/			Reclassified Securities (t)			Transfers		Ending Balance
		1-Jan-14			Included in				Included in Other									Calls/Paydowns								31-Dec-14
					Earnings (s)				Comprehensive
									Income
	Level 1

	Corporate securities and other	$	61		$	—			$	4			$	—	$	—		$	—		$	—		$	—	$	65

	Marketable equity securities	4,241			—				435				—		—			—			—			—		4,676

	Total level 1	4,302			—				439				—		—			—			—			—		4,741


	Level 2


	U.S. Government agencies	990			—				17				—		—			—			—			—		1,007

	State and municipal bonds	214,711			2,412				3,471				—		—			(20,633		)	(131,881		)	—		68,080

	Agency mortgage-backed securities/ collateralized mortgage obligations	1,659,180			(4,046		)		25,893				378,411		—			(257,337		)	(350,640		)	—		1,451,461

	Non-agency collateralized mortgage obligations	4,258			1				(36		)		—		(2,985		)	(1,238		)	—			—		—

	Corporate securities and other	4,922			—				235				—		—			—			(2,011		)	—		3,146

	Total level 2	1,884,061			(1,633		)		29,580				378,411		(2,985		)	(279,208		)	(484,532		)	—		1,523,694


	Level 3


	Corporate securities and other	4,685			2				16				—		—			—			(3,553		)	—		1,150

	Marketable equity securities	1,059			—				17				—		—			—			—			—		1,076

	Total level 3	5,744			2				33				—		—			—			(3,553		)	—		2,226


	Total available-for-sale securities	$	1,894,107		$	(1,631	)		$	30,052			$	378,411	$	(2,985	)	$	(279,208	)	$	(488,085	)	$	—	$	1,530,661


	(s) Includes amortization/accretion
	(t) Securities reclassified from available-for-sale to held-to-maturity at March 31, 2014. Refer to Footnote 4 for further details.
Fair Value Measurements, Nonrecurring	The following table sets forth the Company’s financial assets subject to fair value adjustments (impairment) on a non-recurring basis. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.


	(dollars in thousands)	Quoted Prices			Significant				Significant Unobservable Inputs
		in Active Markets for			Other Observable Inputs
		Identical Assets
	December 31, 2014	(Level 1)			(Level 2)				(Level 3)				Balance
	Loans held-for-sale	$	—		$	4,178			$	—			$	4,178

	Impaired loans, net (u)	—			—				48,908				48,908

	OREO and other repossessed assets	—			—				4,867				4,867


	December 31, 2013

	Loans held-for-sale	$	—		$	4,951			$	—			$	4,951

	Impaired loans, net	—			—				49,412				49,412

	OREO and other repossessed assets	—			—				1,278				1,278


	(u) Excludes purchased credit impaired loans. For additional information regarding impaired loans, refer to Footnote 5.
Carrying amount and fair value of assets and liabilities considered to be financial instruments	The estimation methodologies, resulting fair values and recorded carrying amounts are as follows:


	(dollars in thousands)	December 31, 2014							December 31, 2013
		Carrying Amount			Fair Value				Carrying Amount				Fair Value
	ASSETS
	Cash and cash equivalents	$	413,839		$	413,839			$	283,523			$	283,523

	Investment securities available-for-sale	1,530,661			1,530,661				1,894,107				1,894,107

	Investment securities held-to-maturity	921,042			949,935				438,445				452,202

	Loans held-for-sale	4,178			4,306				4,951				5,077

	Loans, net of allowance for loan losses	6,051,604			5,957,399				5,236,901				5,168,470

	OREO and other repossessed assets	4,867			4,867				1,278				1,278

	Interest rate swap agreements	25,332			25,332				21,624				21,624

	Interest rate locks	30			30				—				—


	LIABILITIES

	Non-interest bearing deposits	$	1,085,158		$	1,085,158			$	970,051			$	970,051

	Interest bearing deposits, non-maturity	4,418,926			4,418,926				3,852,036				3,852,036

	Deposits with stated maturities	1,225,661			1,223,210				1,250,491				1,253,920

	Customer repurchase agreements	607,705			607,705				551,736				551,736

	Repurchase agreements	—			—				50,000				51,332

	Federal Home Loan Bank advances	910,378			916,280				603,232				611,890

	Subordinated debentures	77,321			77,321				77,321				77,321

	Senior long-term debt	125,000			127,250				—				—

	Interest rate swap agreements	25,332			25,332				21,624				21,624

	Forward sale commitments	158			158				84				84

	Interest rate locks	—			—				42				42

REGULATORY_MATTERS_Tables

REGULATORY MATTERS (Tables)	12 Months Ended
	Dec. 31, 2014
Regulatory Capital Requirements [Abstract]
Schedule of compliance with Regulatory Compliance Requirements under Banking Regulations	The following tables summarize National Penn's and National Penn Bank’s regulatory capital.


	31-Dec-14
	(dollars in thousands)	Actual				For Capital				To be Well
						Adequacy Purposes				Capitalized Under
										Prompt Corrective
										Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk-weighted assets)
	National Penn	$	1,050,295	15.16	%	$	554,339	8	%	n/a		n/a

	National Penn Bank	853,919		12.43	%	549,548		8	%	$	686,935	10	%

	Tier I capital (to risk-weighted assets)

	National Penn	$	963,629	13.91	%	$	277,169	4	%	n/a		n/a

	National Penn Bank	767,993		11.18	%	274,774		4	%	$	412,161	6	%

	Tier I capital (to average assets)

	National Penn	$	963,629	10.78	%	$	357,615	4	%	n/a		n/a

	National Penn Bank	767,993		8.61	%	356,769		4	%	$	445,961	5	%


	31-Dec-13
	(dollars in thousands)	Actual				For Capital				To be Well
						Adequacy Purposes				Capitalized Under
										Prompt Corrective
										Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk-weighted assets)

	National Penn	$	1,018,316	16.72	%	$	487,295	8	%	n/a		n/a

	National Penn Bank	870,973		14.4	%	483,796		8	%	$	604,745	10	%

	Tier I capital (to risk-weighted assets)

	National Penn	$	941,926	15.46	%	$	243,647	4	%	n/a		n/a

	National Penn Bank	795,123		13.15	%	241,898		4	%	$	362,847	6	%

	Tier I capital (to average assets)

	National Penn	$	941,926	11.63	%	$	323,963	4	%	n/a		n/a

	National Penn Bank	795,123		9.85	%	323,030		4	%	$	403,788	5	%

BENEFIT_PLANS_Tables

BENEFIT PLANS (Tables)	12 Months Ended
BENEFIT PLANS (Tables)	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Funded status and amounts recognized in consolidated balance sheets	The following table sets forth the plan's funded status and amounts recognized in the Company's consolidated balance sheet:


	(dollars in thousands)	December 31,
		2014				2013
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	51,847			$	56,749
	Benefit obligation at beginning of year	$	51,847			$	56,749
	Benefit obligation from business combination	10,837				—
	Benefit obligation from business combination	10,837				—
	Interest cost	2,508				2,235
	Interest cost	2,508				2,235
	Effect of change in assumptions	15,612				(5,528		)
	Effect of change in assumptions	15,612				(5,528		)
	Benefits paid	(2,068		)		(1,720		)
	Effect of change in experience	209				111
	Effect of change in experience	209				111
	Benefit obligations at end of year	$	78,945			$	51,847
	Benefit obligations at end of year	$	78,945			$	51,847
	Change in plan assets:
	Change in plan assets:
	Fair value of plan assets at beginning of year	$	47,584			$	41,414
	Fair value of plan assets at beginning of year	$	47,584			$	41,414
	Fair value of plan assets from business acquisition	10,939				—
	Fair value of plan assets from business acquisition	10,939				—
	Actual return on plan assets	4,015				8,054
	Actual return on plan assets	4,015				8,054
	Employer contribution	—				—
	Employer contribution	—				—
	Benefits paid including assumed expenses	(2,305		)		(1,884		)
	Fair value of plan assets at end of year	60,233				47,584
	Fair value of plan assets at end of year	60,233				47,584

	Funded status	$	(18,712	)		$	(4,263	)

	Net loss not yet recognized in net periodic pension cost	$	29,704			$	14,685
	Net loss not yet recognized in net periodic pension cost	$	29,704			$	14,685
Net periodic defined benefit pension expense	Net pension cost included the following components:


	(dollars in thousands)	Year Ended December 31,
		2014				2013			2012
	Service cost	$	234			$	164		$	124
	Service cost	$	234			$	164		$	124
	Interest cost	2,508				2,235			2,295
	Interest cost	2,508				2,235			2,295
	Expected return on plan assets	(3,523		)		(2,931		)	(2,758		)
	Amortization of unrecognized net actuarial loss	313				634			562
	Amortization of unrecognized net actuarial loss	313				634			562
	Net periodic benefit cost (gain)	$	(468	)		$	102		$	223
	Net periodic benefit cost (gain)	$	(468	)		$	102		$	223

	Unamortized actuarial gains and losses and prior service costs and credits are recognized in AOCI. Refer to Footnote 11 in this Report.
Weighted-average assumptions used to determine net benefit obligations and net periodic benefit cost	Weighted-average assumptions used to determine net benefit obligations:


		As of December 31,
		2014			2013
	Discount rate	3.85	%		4.75	%
	Rate of compensation increase	N/A			N/A
	Rate of compensation increase	N/A			N/A

	Weighted-average assumptions used to determine net periodic benefit cost:


		Year Ended December 31,
		2014			2013
	Discount rate	4.74	%		4	%
	Expected long-term return on plan assets	7.26	%		7.25	%
	Rate of compensation increase	N/A			N/A
	Rate of compensation increase	N/A			N/A
Pension plan's financial assets at fair value	The following table sets forth the pension plan’s financial assets at fair value by level within the fair value hierarchy:


	December 31, 2014	Quoted				Significant			Significant			Balance		Asset Allocation
		Prices in Active				Other			Unobservable			as of
		Markets for				Observable			Inputs			December 31,
		Identical Assets				Inputs			(Level 3)			2014
	(dollars in thousands)	(Level 1)				(Level 2)
	Equity securities	$	34,512			$	—		$	—		$	34,512	57	%
	Equity securities	$	34,512			$	—		$	—		$	34,512	57	%
	Debt securities	7,960				5,571			—			13,531		22	%
	Debt securities	7,960				5,571			—			13,531		22	%
	Collective investment trust funds	—				11,346			—			11,346		19	%
	Collective investment trust funds	—				11,346			—			11,346		19	%
	Other	844				—			—			844		2	%
	Other	844				—			—			844		2	%
	Total	$	43,316			$	16,917		$	—		$	60,233	100	%
	Total	$	43,316			$	16,917		$	—		$	60,233	100	%

	December 31, 2013	Quoted				Significant			Significant			Balance		Asset Allocation
		Prices in Active				Other			Unobservable			as of
		Markets for				Observable			Inputs			December 31,
		Identical Assets				Inputs			(Level 3)			2013
	(dollars in thousands)	(Level 1)				(Level 2)
	Equity securities	$	33,475			$	—		$	—		$	33,475	70	%
	Equity securities	$	33,475			$	—		$	—		$	33,475	70	%
	Debt securities	8,299				5,286			—			13,585		29	%
	Debt securities	8,299				5,286			—			13,585		29	%
	Other	524				—			—			524		1	%
	Other	524				—			—			524		1	%
	Total	$	42,298			$	5,286		$	—		$	47,584	100	%
	Total	$	42,298			$	5,286		$	—		$	47,584	100	%
Estimated future benefit payments	Estimated Future Benefit Payments


	(dollars in thousands)
	2015	$	3,100
	2015	$	3,100
	2016	2,572
	2016	2,572
	2017	2,839
	2017	2,839
	2018	3,099
	2018	3,099
	2019	3,415
	2019	3,415
	2020-2024	19,806
	2020-2024	19,806

SHAREBASED_COMPENSATION_Tables

SHARE-BASED COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of activity related to share-based plans	The Company, through its Compensation Committee of the Board of Directors, offers equity compensation to employees and non-employee directors of National Penn, National Penn Bank and other National Penn subsidiaries in the form of share-based awards. Stock options, restricted stock awards (“RSAs”), and restricted stock units (“RSUs”) vest over time, upon the satisfaction of established performance criteria, or both.

	The Company believes such awards better align the interests of its employees and non-employee directors with those of its shareholders. Option awards are granted with an exercise price at least equal to the market price of the Company’s stock at the date of grant. Option and other share-based awards vest at such times as are determined by the Compensation Committee of the Board of Directors at the time of grant, but not before one year from the date of grant or later than five years from the date of grant. The options have a maximum term of ten years for incentive stock options or ten years, one month for non-qualified stock options.

	The fair value of RSAs and RSUs are estimated based on the price of the Company’s common stock on the date of grant. Compensation cost is measured ratably over the vesting period of the awards and reversed for awards which are forfeited due to unfulfilled service or performance criteria.

	Vesting of share-based awards is immediately accelerated in the event of a change-in-control; in the event the recipient’s service terminates due to death, disability or retirement (including a voluntary termination of employment at age 60 or more); or in the event of an involuntary termination of employment not for cause.

	Awards are currently granted under the National Penn Bancshares, Inc. 2014 Long-Term Incentive Compensation Plan, approved by shareholders in April 2014 (“2014 Plan”) and expiring April 22, 2024. The 2014 Plan replaced the previous plan ("2005 Plan"), which expired November 30, 2014, and includes authorized but unissued common shares under the 2005 Plan. Under the terms of the 2014 Plan, approximately 3.3 million shares are available for issuance as of December 31, 2014.


	18. SHARE-BASED COMPENSATION - Continued

	Prior to the adoption of the 2014 Plan, the Company maintained other employee stock compensation plans ("Previous Company Plans"). A total of 10.4 million shares of common stock were made available for option or restricted stock awards. At December 31, 2014, 2.1 million shares remain outstanding from the Previous Company Plans. In addition to the Previous Company Plans, the Company issued 3,022,185 substitute stock options as a result of acquisitions made in 2008, of which, approximately 0.6 million options were outstanding at December 31, 2014.
Impact of share-based compensation on the Company's financials	The impact of shared-based compensation on the Company’s financial results for the following periods:


	(dollars in thousands)	Year Ended December 31,
		2014				2013				2012
	Share-based compensation expense	$	4,315			$	3,309			$	3,513

	Income tax benefit	(1,510		)		(1,158		)		(1,230		)
	Reduction to net income	$	2,805			$	2,151			$	2,283

Unrecongized compensation costs	The total unrecognized compensation cost and the weighted-average period over which unrecognized compensation cost is expected to be recognized related to non-vested share-based compensation arrangements at December 31, 2014 is presented below:



	(dollars in thousands)	Unrecognized Compensation Cost				Weighted-Average Period Remaining (Years)
	Restricted stock	$	4,420			2.1

	Stock options	1,069				2.1

	Total	$	5,489			2.1

Restricted stock units activity	Restricted Stock

	Information regarding restricted stock for the following periods is summarized below:


		Year Ended December 31,
		2014				2013				2012
	Shares granted	395,621				411,723				383,906

	Weighted-average grant date fair value	$	11.14			$	9.85			$	8.8

	Fair value of awards vested (000's)	$	3,066			$	1,988			$	2,098


	A summary of the status of the Company’s non-vested restricted stock as of December 31, 2014, and changes during the year then ended, is presented below:


		Shares			Weighted-
					Average
					Grant-Date
					Fair Value
	Non-vested at January 1, 2014	897,189			$	9

	Granted	395,621			11.14

	Forfeited/Canceled	(33,100	)		9.83

	Vested	(286,890	)		8.83

	Non-vested at December 31, 2014	972,820			$	9.84

Fair value for options granted	The Company estimated the fair value of each option grant on the date of grant using the Black-Scholes options-pricing model with the following weighted-average assumptions:


		Year Ended December 31,
		2014			2013			2012
	Risk-free interest rates	1.89	%		1.2	%		1.76	%
	Expected dividend yield	3.59	%		4.07	%		2.27	%
	Expected volatility	53.39	%		53.13	%		51.09	%
	Expected lives (years)	5.92			6.98			7.88

Stock option activity	Information regarding stock options as of December 31, 2014, and changes during the year ended are presented below:



	(dollars in thousands, except share and per share data)				Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value

		Options
	Outstanding at January 1, 2014	4,047,004			$	15.06			2.6		$	3,032

	Granted	246,000			11.15

	Exercised	(61,100	)		7.64

	Forfeited	(1,599,265	)		16.83

	Outstanding at December 31, 2014	2,632,639			13.79				3.5		2,016


	Exercisable at December 31, 2014	2,028,207			$	15.03			2.2		$	1,346


	The following table summarizes information related to stock options:


	(dollars in thousands, except share and per share data)	Year Ended December 31,
		2014				2013				2012
	Options granted	246,000				247,750				239,250

	Weighted-average grant date fair value	$	4.13			$	3.47			$	3.8

	Fair value of awards vested	708				675				588

	Proceeds from stock options exercised	467				900				708

	Tax benefit recognized from stock options exercised	62				112				697

	Intrinsic value of stock options exercised	176				321				352

Schedule of employee share purchases under the Employee Stock Purchase Plan	Employee Stock Purchase Plan

	Under the 1997 shareholder-approved Employee Stock Purchase Plan (“ESPP”), as amended, the Company is authorized to issue up to 864,723 common shares of the Company to eligible employees of the Company. These shares may be purchased by employees at a price equal to 90% of the fair market value of the shares on the purchase date. Purchases under the ESPP are made four times annually. Employee contributions to the ESPP are made through payroll deductions.


		Year Ended December 31,
		2014				2013				2012
	ESPP shares purchased	60,812				65,161				66,103

	Weighted-average employee purchase price	$	9.29			$	9.44			$	8.27

INCOME_TAXES_Tables

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Components of income tax expense included in the consolidated statement of income	The components of the income tax expense included in the consolidated statements of income are as follows:



	(dollars in thousands)	Year Ended December 31,
		2014			2013			2012
	FEDERAL:
	Current	$	21,116		$	9,339		$	21,556

	Deferred federal expense	12,393			59			10,845

		33,509			9,398			32,401

	STATE:

	Current	—			183			353

	Deferred state expense	—			—			—

		—			183			353

	Income tax expense	$	33,509		$	9,581		$	32,754

Difference between applicable income tax expense and amount by applying statutory federal income tax rate	The differences between income tax expense and the amount computed by applying the statutory federal income tax rate are as follows:



	(dollars in thousands)	Year Ended December 31,
		2014			2013			2012
	Computed tax expense at statutory rate	$	46,276		$	22,038		$	46,082

	State income tax expense, net	—			119			228

	Decrease in taxes resulting from:

	Tax-exempt loan and investment income	(12,141		)	(12,927		)	(13,861		)
	Amortization of goodwill and intangibles	(3		)	(3		)	(3		)
	Other, net	(623		)	354			308

	Income tax expense	$	33,509		$	9,581		$	32,754

Deferred tax assets and liabilities	Deferred tax assets and liabilities are composed of the following:


	(dollars in thousands)	December 31,
		2014			2013
	Deferred tax assets
	Allowance for loan losses	$	31,736		$	33,728

	Tax credits	25,599			34,405

	Net unrealized losses on investment securities available-for-sale	—			6,295

	Accrued incentives and deferred compensation	8,713			8,688

	Net operating loss	983			702

	Pension	5,549			1,532

	Accrued expenses	4,141			5,796

	Share-based compensation	3,475			3,044

	Write-downs on other real estate	660			30

	Depreciation	155			—

		$	81,011		$	94,220

	Deferred tax liabilities

	Net unrealized gains on investment securities available-for-sale	$	4,435		$	—

	Core deposit intangibles & acquisition related	5,129			5,904

	Loan costs	8,720			7,352

	Amortization	4,740			4,115

	Depreciation	—			257

	Mortgage servicing rights	505			—

		23,529			17,628

	Net deferred tax asset (included in other assets)	$	57,482		$	76,592

Reconciliation of the beginning and ending amount of unrecognized tax benefit	The Company records a liability for unrecognized tax benefits. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:


	(dollars in thousands)
		2014			2013
	Balance at January 1,	$	1,037		$	1,886

	Additions based on tax positions related to the current year	75			107

	Additions for tax positions of prior years	28			—

	Reductions for tax positions of prior years	—			(343		)

	Reductions as a result of lapse of applicable statute of limitations	(421		)	(613		)
	Balance at December 31,	$	719		$	1,037

CONDENSED_FINANCIAL_INFORMATIO1

CONDENSED FINANCIAL INFORMATION-PARENT COMPANY ONLY (Tables)	12 Months Ended
	Dec. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Parent Company Financial Statements	The following table is a summary of selected financial information of National Penn Bancshares, Inc., parent company only:



	(dollars in thousands)
		Year Ended December 31,
	CONDENSED BALANCE SHEETS	2014				2013
	Assets:
	Cash (v)	$	96,714			$	11,056

	Investment in bank subsidiaries	1,066,182				1,057,054

	Investment in other subsidiaries	224,570				139,342

	Other assets	5,453				2,142

	Total assets	$	1,392,919			$	1,209,594

	Liabilities and shareholders' equity:

	Subordinated debentures	$	77,321			$	77,321

	Senior long-term debt	125,000				—

	Other liabilities	1,959				407

	Shareholders' equity	1,188,639				1,131,866

	Total liabilities and shareholders' equity	$	1,392,919			$	1,209,594


	(v) For tax planning purposes, cash was transferred to a subsidiary of the Parent Company totaling $200 million at December 31, 2014 and $115 million at December 31, 2013. The cash was subsequently transferred back to the Parent Company.

	20. CONDENSED FINANCIAL INFORMATION – PARENT COMPANY ONLY - Continued


	(dollars in thousands)
		Year Ended December 31,
	CONDENSED STATEMENTS OF INCOME	2014				2013				2012
	Income:
	Equity in undistributed net (loss) earnings of subsidiaries (w)	$	7,237			$	(24,961	)		$	(110,930	)

	Dividends from subsidiaries	95,000				79,900				214,992

	Interest and other income	64				2,206				913

	Total income	102,301				57,145				104,975

	Expense:

	Interest on subordinated debentures	2,127				3,092				7,425

	Other operating expenses	3,369				1,502				1,392

	Total expense	5,496				4,594				8,817

	Income before income taxes	96,805				52,551				96,158

	Income tax (benefit)	(1,901		)		(836		)		(2,752		)
	Net income	$	98,706			$	53,387			$	98,910


	(w) During 2014, earnings of subsidiaries totaled $102 million and were netted by distributions to the Parent Company of $95.0 million.



20. CONDENSED FINANCIAL INFORMATION – PARENT COMPANY ONLY - Continued


(dollars in thousands)
	Year Ended December 31,
CONDENSED STATEMENTS OF CASH FLOWS	2014				2013				2012
Cash flows from operating activities:
Net income	$	98,706			$	53,387			$	98,910

Equity in undistributed net loss (earnings) of subsidiaries (w)	(7,237		)		24,961				110,930

(Increase) decrease in other assets	(3,311		)		(1,185		)		4,843

Increase (decrease) in other liabilities	1,552				407				(1,835		)

Other, net	—				(2,100		)		—

Net cash provided by (used in) operating activities	89,710				75,470				212,848



Cash flows from investing activities:

Capital contributions to subsidiaries (v)	(200,000		)		(115,000		)		(150,000		)
Capital received from subsidiaries	115,000				151,956				55,997

Outlays for business acquisitions	(58,436		)		—				—

Other	43,742				—				—

Net cash provided by (used in) investing activities	(99,694		)		36,956				(94,003		)



Cash flows from financing activities:

Proceeds from advances from subsidiaries	—				—				1,063

Repayment of advances from subsidiaries	—				(65,206		)		(1,746		)

Proceeds from issuance of long-term debt	125,000				—				—

Common and treasury stock issuances	7,154				6,370				7,092

Purchase of treasury stock	(78,549		)		—				(67,531		)

Cash dividends	(57,963		)		(43,697		)		(61,401		)
Other	100,000				—				—

Net cash used in financing activities	95,642				(102,533		)		(122,523		)



Net increase (decrease) in cash and cash equivalents	85,658				9,893				(3,678		)



Cash and cash equivalents at beginning of year	11,056				1,163				4,841



Cash and cash equivalents at end of year (v)	$	96,714			$	11,056			$	1,163


(v) For tax planning purposes, cash was transferred to a subsidiary of the Parent Company totaling $200 million at December 31, 2014 and $115 million at December 31, 2013. The cash was subsequently returned to the Parent Company.
(w) During 2014, earnings of subsidiaries totaled $102 million and were netted by distributions to the Parent Company of $95.0 million.

SEGMENT_REPORTING_Tables

SEGMENT REPORTING (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Reportable segment-specific information and reconciliation to consolidated financial information	Reportable segment-specific information and reconciliation to consolidated financial information is as follows:



	(dollars in thousands)	Community Banking
	31-Dec-14			Other			Consolidated
	Total assets	$	9,711,763	$	39,102		$	9,750,865

	Total deposits	6,729,745		—			6,729,745

	Net interest income (expense)	260,777		(3,663		)	257,114

	Total non-interest income	49,000		43,175			92,175

	Total non-interest expense	176,418		34,905			211,323

	Net income	96,585		2,121			98,706

	December 31, 2013
	Total assets	8,551,806		40,042			8,591,848

	Total deposits	6,072,578		—			6,072,578

	Net interest income (expense)	255,030		(2,968		)	252,062

	Total non-interest income	52,968		45,099			98,067

	Total non-interest expense	244,906		37,005			281,911

	Net income	50,840		2,547			53,387

	December 31, 2012
	Total assets	8,485,482		44,040			8,529,522

	Total deposits	5,935,565		—			5,935,565

	Net interest income (expense)	261,098		(7,092		)	254,006

	Total non-interest income	53,784		42,184			95,968

	Total non-interest expense	173,507		36,803			210,310

	Net income (loss)	100,624		(1,714		)	98,910

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	0 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 16, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 16, 2014
Accounting Policies [Abstract]
Number of office locations		127
Number of office locations in Pennsylvania		119
Number of office locations in New Jersey		7
Number of office locations in Maryland		1
Advertising expense		$6,049	$5,543	$5,614
Restricted cash		75,300	52,400
Percentage of the entity's capital and surplus required for subscription of Federal Reserve Bank stock (in hundredths)		6.00%
Core deposit intangibles, useful life (in years)		10 years
Debt Instrument, Issuance Date	16-Sep-14
Senior Notes		125,000	0
Debt Instrument, Maturity Date	30-Sep-24
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate					4.25%
Interest Payable Start, Date	30-Mar-15
Number Of Statutory Business Trusts		4
Exposure to the Trusts, maximum		$75,000
Percentage of likelihood of being realized upon ultimate settlement with the relevant tax authority (in hundredths)		50.00%
Vesting period of stock options, minimum (in years)		1 year
Vesting period of stock options, maximum (in years)		5 years
Maximum term of incentive stock options (in years)		10 years
Maximum term of non-qualified stock options (in years and months)		10 years 1 month

BUSINESS_COMBINATIONS_Details

BUSINESS COMBINATIONS (Details) (USD $)	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Oct. 24, 2014	Oct. 24, 2014
Business Combinations [Abstract]
Business Acquisition, Effective Date of Acquisition	24-Oct-14
Business acquisition, common shares exchanged		8,030,953
Business acquisition, common shares acquired		1,903,139
Common stock issued, net of offering costs		$77,258
Cash consideration	58,438
Total consideration paid	135,696
Cash and equivalents		28,986
Investment securities		124,325
Accrued interest receivable and other assets		48,065
Loans		595,241
Core deposit intangible asset		4,760
Total identifiable assets acquired		801,377
Deposits		658,432
FHLB borrowings		45,999
Other liabilities		5,214
Total liabilities assumed		709,645
Net identified assets acquired at fair value		91,732
Goodwill recognized		$43,964

EARNINGS_PER_SHARE_Details

EARNINGS PER SHARE (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income for EPS [Abstract]
Net Income (Loss) Available to Common Stockholders, Basic	$98,706	$53,387	$98,910
Calculation of shares [Abstract]
Weighted average basic shares	141,281,690	145,602,670	150,566,098
Share-based compensation (in shares)	541,917	441,388	293,897
Weighted average fully diluted shares	141,823,607	146,044,058	150,859,995
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)	$0.70	$0.37	$0.66
Diluted (in dollars per share)	$0.70	$0.37	$0.66
Antidilutive Options Excluded from Earnings Per Share Computation [Abstract]
Stock Options	1,948,027	3,429,793	4,322,167
Exercise Price Low Range	$8.69	$8.69	$7.07
Exercise Price High Range	$21.49	$21.49	$21.49

INVESTMENT_SECURITIES_Amortize

INVESTMENT SECURITIES Amortized Cost and Fair Value of Investment Securities (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Available-for-sale Securities [Abstract]
Amortized cost	$1,514,468		$1,912,094
Gross Unrealized Gains, Available for Sale Securities	26,498		28,148
Gross Unrealized Losses, Available for Sale Securities	-10,305		-46,135
Investment securities available-for-sale, at fair value	1,530,661		1,894,107
Number of AFS securities reclassified to HTM, in ones		240
Amortized Cost of AFS securities reclassified to HTM		492,000
Net unrealized loss of AFS securities reclassified to HTM at date of reclassification		4,100
Fair Value of AFS securities reclassified to HTM securities, at date of reclassification		488,000
Held-to-maturity Securities [Abstract]
Amortized cost	921,042		438,445
Unrealized Holding Gains, Held to Maturity Securities	29,654		14,652
Unrecongnized Holding Losses, Held to Maturity Securities	-761		-895
Total investments	949,935		452,202
U.S. Government Agency Securities [Member]
Available-for-sale Securities [Abstract]
Amortized cost	1,000		1,000
Gross Unrealized Gains, Available for Sale Securities	7		0
Gross Unrealized Losses, Available for Sale Securities	0		-10
Investment securities available-for-sale, at fair value	1,007		990
Held-to-maturity Securities [Abstract]
Amortized cost	3,869
Unrealized Holding Gains, Held to Maturity Securities	55
Unrecongnized Holding Losses, Held to Maturity Securities	0
Total investments	3,924
State and Municipal Bonds [Member]
Available-for-sale Securities [Abstract]
Amortized cost	63,674		210,680
Gross Unrealized Gains, Available for Sale Securities	4,488		7,701
Gross Unrealized Losses, Available for Sale Securities	-82		-3,670
Investment securities available-for-sale, at fair value	68,080		214,711
Held-to-maturity Securities [Abstract]
Amortized cost	551,627		403,344
Unrealized Holding Gains, Held to Maturity Securities	24,480		13,028
Unrecongnized Holding Losses, Held to Maturity Securities	-63		-895
Total investments	576,044		415,477
Agency Mortgage-backed Securities/Collateralized Mortgage Obligations [Member]
Available-for-sale Securities [Abstract]
Amortized cost	1,442,102		1,683,092
Gross Unrealized Gains, Available for Sale Securities	19,234		18,040
Gross Unrealized Losses, Available for Sale Securities	-9,875		-41,952
Investment securities available-for-sale, at fair value	1,451,461		1,659,180
Held-to-maturity Securities [Abstract]
Amortized cost	364,100		34,843
Unrealized Holding Gains, Held to Maturity Securities	5,098		1,624
Unrecongnized Holding Losses, Held to Maturity Securities	-694		0
Total investments	368,504		36,467
Non-Agency Collateralized Mortgage Obligations [Member]
Available-for-sale Securities [Abstract]
Amortized cost			4,222
Gross Unrealized Gains, Available for Sale Securities			44
Gross Unrealized Losses, Available for Sale Securities			-8
Investment securities available-for-sale, at fair value			4,258
Held-to-maturity Securities [Abstract]
Amortized cost			258
Unrealized Holding Gains, Held to Maturity Securities			0
Unrecongnized Holding Losses, Held to Maturity Securities			0
Total investments			258
Corporate Securities and Other [Member]
Available-for-sale Securities [Abstract]
Amortized cost	4,109		9,517
Gross Unrealized Gains, Available for Sale Securities	600		646
Gross Unrealized Losses, Available for Sale Securities	-348		-495
Investment securities available-for-sale, at fair value	4,361		9,668
Held-to-maturity Securities [Abstract]
Amortized cost	1,446
Unrealized Holding Gains, Held to Maturity Securities	21
Unrecongnized Holding Losses, Held to Maturity Securities	-4
Total investments	1,463
Equity Securities [Member]
Available-for-sale Securities [Abstract]
Amortized cost	3,583		3,583
Gross Unrealized Gains, Available for Sale Securities	2,169		1,717
Gross Unrealized Losses, Available for Sale Securities	0		0
Investment securities available-for-sale, at fair value	$5,752		$5,300

INVESTMENT_SECURITIES_Gain_and

INVESTMENT SECURITIES Gain and Loss On Sale Of Investment Securities (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Gain (Loss) on Investments [Line Items]
Gains	$142	$54	$16
Losses	-121	0	-135
Net (losses) gains from sales of investment securities	$21	$54	($119)

INVESTMENT_SECURITIES_Unrealiz

INVESTMENT SECURITIES Unrealized Loss Position (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Continuous Unrealized Loss Position, Fair Value [Abstract]
Number of securities, in ones	155	397
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$261,151	$1,033,601
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-1,814	-36,325
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	308,141	139,231
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	-9,252	-10,705
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	569,292	1,172,832
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	-11,066	-47,030
U.S. Government Agency Securities [Member]
Continuous Unrealized Loss Position, Fair Value [Abstract]
Number of securities, in ones		1
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		990
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		-10
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		990
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		-10
State and Municipal Bonds [Member]
Continuous Unrealized Loss Position, Fair Value [Abstract]
Number of securities, in ones	29	145
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	9,166	76,402
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-47	-2,282
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	10,572	20,708
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	-98	-2,283
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	19,738	97,110
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	-145	-4,565
Agency Mortgage-backed Securities/Collateralized Mortgage Obligations [Member]
Continuous Unrealized Loss Position, Fair Value [Abstract]
Number of securities, in ones	123	241
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	250,975	953,423
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-1,763	-33,990
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	296,419	115,815
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	-8,806	-7,962
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	547,394	1,069,238
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	-10,569	-41,952
Non-Agency Collateralized Mortgage Obligations [Member]
Continuous Unrealized Loss Position, Fair Value [Abstract]
Number of securities, in ones		5
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		820
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		-8
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		820
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		-8
Corporate Securities and Other [Member]
Continuous Unrealized Loss Position, Fair Value [Abstract]
Number of securities, in ones	3	5
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,010	1,966
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-4	-35
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,150	2,708
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	-348	-460
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,160	4,674
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	($352)	($495)

INVESTMENT_SECURITIES_Investme

INVESTMENT SECURITIES Investment Securities Pledged as Collateral (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Investment Securities Pledged as Collateral [Abstract]
customer repurchase agreements collateralized by investments	$662,737	$595,761
Deposits Collateralized By Investment Securities	1,038,073	966,751
Repurchase Agreements Collateralized By Investment Securities	0	54,866
Other Obligations Collateralized By Investment Securities	75,939	81,408
Total investments pledged as collateral	$1,776,749	$1,698,786

INVESTMENT_SECURITIES_Amortize1

INVESTMENT SECURITIES Amortized Cost and Fair Value of Investment Securities, by Contractual Maturity (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Amortized Cost and Fair Value of Investment Securities, by Contractual Maturity [Abstract]
Par Value of Net FHLB Stock Purchased	$3,766
Available for Sale Securities, Maturities, Amortized Cost Basis [Abstract]
Due in one year or less	4,727
Due after one through five years	60,060
Due after five through ten years	151,872
Due after ten years	1,294,226
Marketable equity securities	3,583
Total investments	1,514,468	1,912,094
Available for Sale Securities, Maturities, Fair Value [Abstract]
Due in one year or less	4,891
Due after one through five years	64,729
Due after five through ten years	157,267
Due after ten years	1,298,022
Marketable equity securities	5,752
Investment securities available-for-sale, at fair value	1,530,661	1,894,107
Held to Maturity Securities, Maturities, Amortized Cost [Abstract]
Due in one year or less	908
Due after one through five years	20,114
Due after five through ten years	231,023
Due after ten years	668,997
Marketable equity securities	0
Total investments	921,042	438,445
Held to Maturity Securities, Maturities, Fair Value [Abstract]
Due in one year or less	916
Due after one through five years	20,298
Due after five through ten years	239,890
Due after ten years	688,831
Marketable equity securities	0
Total investments	$949,935	$452,202

INVESTMENT_SECURITIES_Other_se

INVESTMENT SECURITIES Other securities and OTTI (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Investments, All Other Investments [Abstract]
Other securities	$67,512	$63,746

LOANS_Originated_and_Acquired_

LOANS - Originated and Acquired (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	$6,142,279	$5,333,268
Financing Receivable, Acquired with Deteriorated Credit Quality	7,646
Commercial and Industrial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	2,599,867	2,460,664
Financing Receivable, Acquired with Deteriorated Credit Quality	1,223
CRE - Permanent [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	1,229,318	994,838
Financing Receivable, Acquired with Deteriorated Credit Quality	5,111
Commercial Real Estate Construction Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	203,542	198,334
Financing Receivable, Acquired with Deteriorated Credit Quality	57
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	1,432,860	1,193,172
Financing Receivable, Acquired with Deteriorated Credit Quality	5,168
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	908,357	652,225
Financing Receivable, Acquired with Deteriorated Credit Quality	1,255
Home Equity Line of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	913,830	762,608
Financing Receivable, Acquired with Deteriorated Credit Quality	0
Consumer Other Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	287,365	264,599
Financing Receivable, Acquired with Deteriorated Credit Quality	0
Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	2,109,552	1,679,432
Financing Receivable, Acquired with Deteriorated Credit Quality	1,255
OriginatedLoans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	5,562,087
OriginatedLoans [Member] \| Commercial and Industrial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	2,548,438
OriginatedLoans [Member] \| CRE - Permanent [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	1,092,006
OriginatedLoans [Member] \| Commercial Real Estate Construction Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	196,554
OriginatedLoans [Member] \| Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	1,288,560
OriginatedLoans [Member] \| Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	654,617
OriginatedLoans [Member] \| Home Equity Line of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	783,248
OriginatedLoans [Member] \| Consumer Other Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	287,224
OriginatedLoans [Member] \| Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	1,725,089
AcquiredLoans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	580,192
AcquiredLoans [Member] \| Commercial and Industrial Loans and Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	51,429
AcquiredLoans [Member] \| CRE - Permanent [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	137,312
AcquiredLoans [Member] \| Commercial Real Estate Construction Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	6,988
AcquiredLoans [Member] \| Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	144,300
AcquiredLoans [Member] \| Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	253,740
AcquiredLoans [Member] \| Home Equity Line of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	130,582
AcquiredLoans [Member] \| Consumer Other Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	141
AcquiredLoans [Member] \| Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	$384,463

LOANS_Carrying_Amounts_at_Acqu

LOANS - Carrying Amounts at Acquisition of All Purchased Credit Impaired Loans (Details) (USD $)	Dec. 31, 2014	Oct. 24, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014	Oct. 24, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield	$1,548	$0
Acquired Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Contractually Required Principal Receivable		13,807
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Contractually Required Interest Receivable		4,637
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition		18,444
Contractually Required Cash Flows Not Expected to Be Collected Principal		-6,161
Contractually Required Cash Flows Not Expected to Be Collected Interest Portion		-2,949
Certain Loans Acquired in Transfer, Nonaccretable Difference		-9,110
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition		9,334
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield		-1,688
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value		$7,646

LOANS_LOANS_Narrative_Details

LOANS LOANS Narrative (Details) (USD $)	0 Months Ended
LOANS LOANS Narrative (Details) (USD $)	Oct. 24, 2014	Dec. 31, 2014	Oct. 24, 2014
Narrative details, acquired loans [Abstract]
Acquired non-impaired loans, fair value			$588,000,000
Acquired non-impaired loans, fair value adjustment net		4,800,000	5,000,000
Business Acquisition, Effective Date of Acquisition	24-Oct-14
Acquired non-impaired loans, fair value adjustment gross			$9,900,000

LOANS_Summary_of_Change_in_Acc

LOANS - Summary of Change in Accretable Yield (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Oct. 24, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield		$0
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Additions	1,688
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion	-140
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference	0
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield	$1,548	$0

LOANS_Credit_Quality_Details

LOANS Credit Quality (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	$6,142,279	$5,333,268
Percent Total Loans and Leases Performing Pass Rated		95.45%
Percent Total Loans and Leases Performing Special Mention Loans		0.96%
Percent Total Loans and Leases Performing Classified		2.60%
Percent Total Loans and Leases Non Performing		0.99%
Percent Total Loans and Leases Purchased Credit Impaired	0.12%
Percent of Total Loans and Leases		100.00%
Overdrafts included in loan balances	1,041	1,053
Costs, net of fees	7,196	5,803
Financing Receivable, Acquired with Deteriorated Credit Quality	7,646
Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		5,090,493
Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		51,186
Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		138,998
Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		52,591
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	2,599,867	2,460,664
Financing Receivable, Acquired with Deteriorated Credit Quality	1,223
Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		2,327,344
Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		38,873
Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		79,179
Commercial and Industrial [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		15,268
CRE - Permanent [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,229,318	994,838
Financing Receivable, Acquired with Deteriorated Credit Quality	5,111
CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		944,589
CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		9,191
CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		36,272
CRE - Permanent [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		4,786
CRE - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	203,542	198,334
Financing Receivable, Acquired with Deteriorated Credit Quality	57
CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		167,710
CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		2,962
CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		15,534
CRE - Construction [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		12,128
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,432,860	1,193,172
Financing Receivable, Acquired with Deteriorated Credit Quality	5,168
Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		1,112,299
Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		12,153
Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		51,806
Commercial Real Estate [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		16,914
Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	908,357	652,225
Financing Receivable, Acquired with Deteriorated Credit Quality	1,255
Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		636,829
Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		0
Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		2,243
Residential Mortgages [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		13,153
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	913,830	762,608
Financing Receivable, Acquired with Deteriorated Credit Quality	0
Home Equity [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		757,064
Home Equity [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		0
Home Equity [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		137
Home Equity [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		5,407
All Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	287,365	264,599
Financing Receivable, Acquired with Deteriorated Credit Quality	0
All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		256,957
All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		160
All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		5,633
All Other Consumer [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		1,849
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	2,109,552	1,679,432
Financing Receivable, Acquired with Deteriorated Credit Quality	1,255
Consumer [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		1,650,850
Consumer [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		160
Consumer [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		8,013
Consumer [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross		20,409
OriginatedLoans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	5,562,087
Percent Total Loans and Leases Performing Pass Rated	96.73%
Percent Total Loans and Leases Performing Special Mention Loans	0.52%
Percent Total Loans and Leases Performing Classified	1.69%
Percent Total Loans and Leases Non Performing	1.06%
Percent of Total Loans and Leases	100.00%
OriginatedLoans [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	5,379,651
OriginatedLoans [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	29,181
OriginatedLoans [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	94,163
OriginatedLoans [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	59,092
OriginatedLoans [Member] \| Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	2,548,438
OriginatedLoans [Member] \| Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	2,431,251
OriginatedLoans [Member] \| Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	24,129
OriginatedLoans [Member] \| Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	70,765
OriginatedLoans [Member] \| Commercial and Industrial [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	22,293
OriginatedLoans [Member] \| CRE - Permanent [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,092,006
OriginatedLoans [Member] \| CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,065,916
OriginatedLoans [Member] \| CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	4,351
OriginatedLoans [Member] \| CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	13,307
OriginatedLoans [Member] \| CRE - Permanent [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	8,432
OriginatedLoans [Member] \| CRE - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	196,554
OriginatedLoans [Member] \| CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	182,554
OriginatedLoans [Member] \| CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	701
OriginatedLoans [Member] \| CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	5,186
OriginatedLoans [Member] \| CRE - Construction [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	8,113
OriginatedLoans [Member] \| Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,288,560
OriginatedLoans [Member] \| Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,248,470
OriginatedLoans [Member] \| Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	5,052
OriginatedLoans [Member] \| Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	18,493
OriginatedLoans [Member] \| Commercial Real Estate [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	16,545
OriginatedLoans [Member] \| Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	654,617
OriginatedLoans [Member] \| Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	640,344
OriginatedLoans [Member] \| Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
OriginatedLoans [Member] \| Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	314
OriginatedLoans [Member] \| Residential Mortgages [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	13,959
OriginatedLoans [Member] \| Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	783,248
OriginatedLoans [Member] \| Home Equity [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	778,611
OriginatedLoans [Member] \| Home Equity [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
OriginatedLoans [Member] \| Home Equity [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	335
OriginatedLoans [Member] \| Home Equity [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	4,302
OriginatedLoans [Member] \| All Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	287,224
OriginatedLoans [Member] \| All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	280,975
OriginatedLoans [Member] \| All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
OriginatedLoans [Member] \| All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	4,256
OriginatedLoans [Member] \| All Other Consumer [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,993
OriginatedLoans [Member] \| Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,725,089
OriginatedLoans [Member] \| Consumer [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,699,930
OriginatedLoans [Member] \| Consumer [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
OriginatedLoans [Member] \| Consumer [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	4,905
OriginatedLoans [Member] \| Consumer [Member] \| Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	20,254
AcquiredLoans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	580,192
Percent Total Loans and Leases Performing Pass Rated	96.88%
Percent Total Loans and Leases Performing Special Mention Loans	1.47%
Percent Total Loans and Leases Performing Classified	0.33%
Percent Total Loans and Leases Purchased Credit Impaired	1.32%
Percent of Total Loans and Leases	100.00%
AcquiredLoans [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	562,121
AcquiredLoans [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	8,537
AcquiredLoans [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,888
AcquiredLoans [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	7,646
AcquiredLoans [Member] \| Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	51,429
AcquiredLoans [Member] \| Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	49,091
AcquiredLoans [Member] \| Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	697
AcquiredLoans [Member] \| Commercial and Industrial [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	418
AcquiredLoans [Member] \| Commercial and Industrial [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	1,223
AcquiredLoans [Member] \| CRE - Permanent [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	137,312
AcquiredLoans [Member] \| CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	122,952
AcquiredLoans [Member] \| CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	7,840
AcquiredLoans [Member] \| CRE - Permanent [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,409
AcquiredLoans [Member] \| CRE - Permanent [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	5,111
AcquiredLoans [Member] \| CRE - Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	6,988
AcquiredLoans [Member] \| CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	6,931
AcquiredLoans [Member] \| CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
AcquiredLoans [Member] \| CRE - Construction [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
AcquiredLoans [Member] \| CRE - Construction [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	57
AcquiredLoans [Member] \| Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	144,300
AcquiredLoans [Member] \| Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	129,883
AcquiredLoans [Member] \| Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	7,840
AcquiredLoans [Member] \| Commercial Real Estate [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,409
AcquiredLoans [Member] \| Commercial Real Estate [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	5,168
AcquiredLoans [Member] \| Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	253,740
AcquiredLoans [Member] \| Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	252,454
AcquiredLoans [Member] \| Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
AcquiredLoans [Member] \| Residential Mortgages [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	31
AcquiredLoans [Member] \| Residential Mortgages [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	1,255
AcquiredLoans [Member] \| Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	130,582
AcquiredLoans [Member] \| Home Equity [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	130,552
AcquiredLoans [Member] \| Home Equity [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
AcquiredLoans [Member] \| Home Equity [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	30
AcquiredLoans [Member] \| Home Equity [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	0
AcquiredLoans [Member] \| All Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	141
AcquiredLoans [Member] \| All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	141
AcquiredLoans [Member] \| All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
AcquiredLoans [Member] \| All Other Consumer [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
AcquiredLoans [Member] \| All Other Consumer [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	0
AcquiredLoans [Member] \| Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	384,463
AcquiredLoans [Member] \| Consumer [Member] \| Performing Financing Receivable [Member] \| Pass Rated Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	383,147
AcquiredLoans [Member] \| Consumer [Member] \| Performing Financing Receivable [Member] \| Special Mention Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	0
AcquiredLoans [Member] \| Consumer [Member] \| Performing Financing Receivable [Member] \| Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	61
AcquiredLoans [Member] \| Consumer [Member] \| Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Acquired with Deteriorated Credit Quality	$1,255

LOANS_Delinquency_Details

LOANS Delinquency (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	$16,863	$21,579
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	3,254	4,390
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	2,183	3,466
Total Past Due and Still Accruing	22,300	29,435
Accruing Current Balance	6,061,496	5,258,957
Financing Receivable, Acquired with Deteriorated Credit Quality	7,646
Non-accrual Balances	50,837	44,876
Total Loan Balances	6,142,279	5,333,268
Percent total loans and leases 30 to 59 days past due and still accruing	0.27%	0.40%
Percent total loans and leases 60 to 89 days past due still accruing	0.05%	0.08%
Percent of total loans and leases, 90 days or more past due and still accruing	0.04%	0.07%
Percent of total loans and leases, total past due and still accruing	0.36%	0.55%
Percent Total Loans and Leases Purchased Credit Impaired	0.12%
Percent total loans and leases non accrual balances	0.83%	0.84%
Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	738	3,362
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	369	1,520
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	137	11
Total Past Due and Still Accruing	1,244	4,893
Accruing Current Balance	2,575,469	2,440,836
Financing Receivable, Acquired with Deteriorated Credit Quality	1,223
Non-accrual Balances	21,931	14,935
Total Loan Balances	2,599,867	2,460,664
Troubled debt restructurings included in non accrual balances	8,200	7,700
CRE - Permanent [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	2,052	6,191
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	286	181
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	57	0
Total Past Due and Still Accruing	2,395	6,372
Accruing Current Balance	1,213,897	984,208
Financing Receivable, Acquired with Deteriorated Credit Quality	5,111
Non-accrual Balances	7,915	4,258
Total Loan Balances	1,229,318	994,838
CRE - Construction [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	425	373
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Total Past Due and Still Accruing	425	373
Accruing Current Balance	194,947	185,833
Financing Receivable, Acquired with Deteriorated Credit Quality	57
Non-accrual Balances	8,113	12,128
Total Loan Balances	203,542	198,334
Commercial Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	2,477	6,564
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	286	181
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	57	0
Total Past Due and Still Accruing	2,820	6,745
Accruing Current Balance	1,408,844	1,170,041
Financing Receivable, Acquired with Deteriorated Credit Quality	5,168
Non-accrual Balances	16,028	16,386
Total Loan Balances	1,432,860	1,193,172
Troubled debt restructurings included in non accrual balances	14,000	6,500
Residential Mortgages [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	6,013	4,509
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	1,363	774
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	304	2,197
Total Past Due and Still Accruing	7,680	7,480
Accruing Current Balance	891,716	637,708
Financing Receivable, Acquired with Deteriorated Credit Quality	1,255
Non-accrual Balances	7,706	7,037
Total Loan Balances	908,357	652,225
Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	4,596	4,383
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	579	1,101
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	365	140
Total Past Due and Still Accruing	5,540	5,624
Accruing Current Balance	904,864	752,197
Financing Receivable, Acquired with Deteriorated Credit Quality	0
Non-accrual Balances	3,426	4,787
Total Loan Balances	913,830	762,608
All Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	3,039	2,761
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	657	814
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	1,320	1,118
Total Past Due and Still Accruing	5,016	4,693
Accruing Current Balance	280,603	258,175
Financing Receivable, Acquired with Deteriorated Credit Quality	0
Non-accrual Balances	1,746	1,731
Total Loan Balances	287,365	264,599
Consumer [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	13,648	11,653
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	2,599	2,689
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	1,989	3,455
Total Past Due and Still Accruing	18,236	17,797
Accruing Current Balance	2,077,183	1,648,080
Financing Receivable, Acquired with Deteriorated Credit Quality	1,255
Non-accrual Balances	12,878	13,555
Total Loan Balances	2,109,552	1,679,432
Troubled debt restructurings included in non accrual balances	$3,400	$3,000

LOANS_Allowance_Roll_Forward_D

LOANS Allowance Roll Forward (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	$96,367	$110,955	$126,640
Charge-offs	17,021	24,993	28,498
Recoveries	-5,578	-5,155	-4,813
Provision for loan losses	-5,751	-5,250	-8,000
Net Charge-offs	-11,443	-19,838	-23,685
Ending balance	90,675	96,367	110,955
Ending balance of allowance: individually evaluated for impairment	13,069	8,304
Ending balance of allowance: collectively evaluated for impairment	77,606	88,063
Ending balance of loans and leases: individually evaluated for impairment		57,716
Ending balance of loans and leases: collectively evaluated for impairment		5,275,552
Total Loan Balances	6,142,279	5,333,268
OriginatedLoans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Ending balance of loans and leases: individually evaluated for impairment	61,977
Ending balance of loans and leases: collectively evaluated for impairment	5,500,110
Total Loan Balances	5,562,087
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	41,288	46,151
Charge-offs	5,006	14,164
Recoveries	-2,325	-2,014
Provision for loan losses	-1,375	-7,287
Ending balance	39,982	41,288
Ending balance of allowance: individually evaluated for impairment	7,165	3,997
Ending balance of allowance: collectively evaluated for impairment	32,817	37,291
Ending balance of loans and leases: individually evaluated for impairment		15,268
Ending balance of loans and leases: collectively evaluated for impairment		2,445,396
Total Loan Balances		2,460,664
Commercial [Member] \| OriginatedLoans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Ending balance of loans and leases: individually evaluated for impairment	22,384
Ending balance of loans and leases: collectively evaluated for impairment	2,526,054
Total Loan Balances	2,548,438
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	22,653	29,295
Charge-offs	2,746	2,421
Recoveries	-1,136	-1,142
Provision for loan losses	-2,347	-5,363
Ending balance	18,696	22,653
Ending balance of allowance: individually evaluated for impairment	3,906	2,487
Ending balance of allowance: collectively evaluated for impairment	14,790	20,166
Ending balance of loans and leases: individually evaluated for impairment		21,995
Ending balance of loans and leases: collectively evaluated for impairment		1,171,177
Total Loan Balances		1,193,172
Commercial Real Estate [Member] \| OriginatedLoans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Ending balance of loans and leases: individually evaluated for impairment	19,295
Ending balance of loans and leases: collectively evaluated for impairment	1,269,265
Total Loan Balances	1,288,560
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	21,478	23,101
Charge-offs	-9,269	8,408
Recoveries	2,117	-1,999
Provision for loan losses	-7,064	-4,786
Ending balance	21,390	21,478
Ending balance of allowance: individually evaluated for impairment	1,998	1,820
Ending balance of allowance: collectively evaluated for impairment	19,392	19,658
Ending balance of loans and leases: individually evaluated for impairment		20,453
Ending balance of loans and leases: collectively evaluated for impairment		1,658,979
Total Loan Balances		1,679,432
Consumer [Member] \| OriginatedLoans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Ending balance of loans and leases: individually evaluated for impairment	20,298
Ending balance of loans and leases: collectively evaluated for impairment	1,704,791
Total Loan Balances	1,725,089
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	10,948	12,408
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	-341	-1,460
Ending balance	10,607	10,948
Ending balance of allowance: individually evaluated for impairment	0	0
Ending balance of allowance: collectively evaluated for impairment	10,607	10,948
Ending balance of loans and leases: individually evaluated for impairment		0
Ending balance of loans and leases: collectively evaluated for impairment		0
Total Loan Balances		0
Unallocated [Member] \| OriginatedLoans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Ending balance of loans and leases: individually evaluated for impairment	0
Ending balance of loans and leases: collectively evaluated for impairment	0
Total Loan Balances	$0

LOANS_Impaired_Details

LOANS Impaired (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	$41,131	$30,996
Recorded Investment Without Related Allowance	20,846	26,720
Total recorded Investment	61,977	57,716
Life to date charge offs	13,665	20,049
Total Unpaid Balances	75,642	77,765
Related allowance	13,069	8,304
Average Recorded Investment	50,516	60,761	61,357
Impaired Financing Receivable, Interest Income, Accrual Method	199	295	299
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	17,343	8,457
Recorded Investment Without Related Allowance	5,041	6,811
Total recorded Investment	22,384	15,268
Life to date charge offs	3,981	5,599
Total Unpaid Balances	26,365	20,867
Related allowance	7,165	3,997
Average Recorded Investment	12,792	25,838	31,392
Impaired Financing Receivable, Interest Income, Accrual Method	17	77	12
CRE - Permanent [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	9,062	5,995
Recorded Investment Without Related Allowance	2,120	3,872
Total recorded Investment	11,182	9,867
Life to date charge offs	7,821	6,441
Total Unpaid Balances	19,003	16,308
Related allowance	2,574	1,073
Average Recorded Investment	7,720	9,584	7,352
Impaired Financing Receivable, Interest Income, Accrual Method	24	31	215
CRE - Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	7,585	9,729
Recorded Investment Without Related Allowance	528	2,399
Total recorded Investment	8,113	12,128
Life to date charge offs	970	6,633
Total Unpaid Balances	9,083	18,761
Related allowance	1,332	1,414
Average Recorded Investment	9,503	7,320	9,008
Impaired Financing Receivable, Interest Income, Accrual Method	0	70	0
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	16,647	15,724
Recorded Investment Without Related Allowance	2,648	6,271
Total recorded Investment	19,295	21,995
Life to date charge offs	8,791	13,074
Total Unpaid Balances	28,086	35,069
Related allowance	3,906	2,487
Average Recorded Investment	17,223	16,904	16,360
Impaired Financing Receivable, Interest Income, Accrual Method	24	101	215
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	5,894	6,088
Recorded Investment Without Related Allowance	8,109	7,109
Total recorded Investment	14,003	13,197
Life to date charge offs	457	800
Total Unpaid Balances	14,460	13,997
Related allowance	1,503	1,589
Average Recorded Investment	13,779	11,267	8,111
Impaired Financing Receivable, Interest Income, Accrual Method	131	105	64
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	850	609
Recorded Investment Without Related Allowance	3,452	4,798
Total recorded Investment	4,302	5,407
Life to date charge offs	436	515
Total Unpaid Balances	4,738	5,922
Related allowance	295	203
Average Recorded Investment	4,845	4,994	3,507
Impaired Financing Receivable, Interest Income, Accrual Method	14	11	8
All Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	397	118
Recorded Investment Without Related Allowance	1,596	1,731
Total recorded Investment	1,993	1,849
Life to date charge offs	0	61
Total Unpaid Balances	1,993	1,910
Related allowance	200	28
Average Recorded Investment	1,877	1,758	1,987
Impaired Financing Receivable, Interest Income, Accrual Method	13	1	0
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With Related Allowance	7,141	6,815
Recorded Investment Without Related Allowance	13,157	13,638
Total recorded Investment	20,298	20,453
Life to date charge offs	893	1,376
Total Unpaid Balances	21,191	21,829
Related allowance	1,998	1,820
Average Recorded Investment	20,501	18,019	13,605
Impaired Financing Receivable, Interest Income, Accrual Method	$158	$117	$72

LOANS_TDR_Details

LOANS TDR (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Modifications [Line Items]
Restructured loans	$8,255	$7,715
Undrawn commitments to lend on restructured loans	0	0
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	362	333
CRE - Permanent [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	517	528
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	6,253	6,116
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	876	620
All Other Consumer [Member]
Financing Receivable, Modifications [Line Items]
Restructured loans	$247	$118

LOANS_OREO_and_Repossed_Assets

LOANS OREO and Repossed Assets (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Other Real Estate Owned And Repossessed Assets
Other Real Estate Owned Acquired In Business Combination	$3,675	$0
Other Real Estate Owned	753	892
Repossessed Assets	439	386
Total Other Real Estate Owned and Repossessed Assets	$4,867	$1,278

PREMISES_AND_EQUIPMENT_Details

PREMISES AND EQUIPMENT (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Premises and Equipment, gross	$275,360	$242,736
Accumulated depreciation	-158,946	-146,504
Premises and Equipment, net	116,414	96,232
Increase in net premises and equipment from prior year	20,182
Premises and equipment for Allentown City Center, net	15,300
Premises and equipment for Reading Business Center, net	2,600
Facilities acquired by TF, fair value	10,894
Depreciation expense	9,500	9,100	9,700
Restructuring charges	1,080
Rental expense	8,600	8,500	8,100
Operating lease future minimum payments due [Abstract]
2015	7,218
2016	6,619
2017	5,985
2018	5,669
2019	5,100
Thereafter	28,968
Total future minimum lease payments	59,559
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, gross	17,176	14,739
Buildings [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, gross	105,080	101,626
Buildings [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	P5Y
Buildings [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	P40Y
Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, gross	122,212	111,670
Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	P3Y
Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	P10Y
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, gross	28,064	10,905
Leasehold Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	P2Y
Leasehold Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	P20Y
Equipment Leases to Customers [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, gross	$2,828	$3,796

GOODWILL_AND_OTHER_INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Roll forward]
Goodwill beginning balance	$512,268
Goodwill, Acquired During Period	43,965
Goodwill, gross, impairment	0
Goodwill disposition	0
Goodwill ending balance	556,233	512,268
Accumulated impairment begining balance	-253,989
Goodwill acquired, impairment	0
Goodwill impairment	0
Accumulated impairment-disposition	0
Accumulated impairment ending balance	-253,989	-253,989
Goodwill, net, beginging balance	258,279
Goodwill, net, acquired	43,965
Goodwill, net, impairment	0
Goodwill, net, disposition	0
Goodwill, net, ending balance	302,244	258,279
Core deposits and other intangibles	8,757	6,854	10,614
Amortization expense core deposits and other intangibles	2,856	3,761	5,156
Future amortization expense [Abstract]
2015	2,656
2016	1,967
2017	1,380
2018	770
2019	581
Community Banking [Member]
Goodwill [Roll forward]
Goodwill, net, ending balance	278,965
Other [Member]
Goodwill [Roll forward]
Goodwill, net, ending balance	$23,000

DEPOSITS_Details

DEPOSITS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Balance [Abstract]
NOW accounts	$1,913,399	$1,655,425
Money market accounts	1,827,233	1,670,035
Savings accounts	678,294	526,576
Time deposits less than $100	891,964	896,700
Time deposits $100 or greater	333,697	353,791
Total interest bearing deposits	5,644,587	5,102,527
Non-interest bearing deposits	1,085,158	970,051
Total deposits	6,729,745	6,072,578
Interest Expense [Abstract]
NOW accounts	2,561	2,310
Money market accounts	3,716	4,460
Savings accounts	563	546
Time deposits less than $100	8,361	10,954
Time deposits $100 or greater	3,342	4,109
Total interest bearing deposits	18,543	22,379
Total deposits	18,543	22,379	26,822
Maturities of time deposits [Abstract]
2015	740,514
2016	176,328
2017	107,054
2018	47,552
2019	153,926
Thereafter	287
Total	$1,225,661

BORROWINGS_Details

BORROWINGS (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Borrowings [Line Items]
Total borrowings and other debt obligations	$1,720,404	$1,282,289
Customer Repurchase Agreements [Member]
Borrowings [Line Items]
Total borrowings and other debt obligations	607,705	551,736
Repurchase Agreements [Member]
Borrowings [Line Items]
Total borrowings and other debt obligations	0	50,000
Federal Home Loan Bank Advances [Member]
Borrowings [Line Items]
Total borrowings and other debt obligations	910,378	603,232
Senior long-term debt [Member]
Borrowings [Line Items]
Total borrowings and other debt obligations	125,000	0
Subordinated Debentures Accounted for at Amortized Cost [Member]
Borrowings [Line Items]
Total borrowings and other debt obligations	$77,321	$77,321

BORROWINGS_Narrative_Details

BORROWINGS, Narrative (Details) (USD $)	0 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 16, 2014	Dec. 31, 2014	Sep. 16, 2014	Dec. 31, 2013
Senior long-term debt [Abstract]
Debt Instrument, Issuance Date	16-Sep-14
Senior Notes		$125,000		$0
Debt Instrument, Maturity Date	30-Sep-24
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate			4.25%
Interest Payable Start, Date	30-Mar-15
Debt Issuance Cost		1,400
Unamortized Debt Issuance Expense		$1,408
Number of statutory business trusts		4

BORROWINGS_FHLB_Advances_and_R

BORROWINGS, FHLB Advances and Repurchase Agreements (Details) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Maturities of Federal Home Loan Bank Advances [Abstract]
2015	$780,000
2016	9,473
2017	65,702
2018	6,933
2019	38,224
Thereafter	10,046
Total	$910,378

BORROWINGS_Trusts_Details

BORROWINGS, Trusts (Details) (USD $)	0 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 16, 2014	Dec. 31, 2014
Statutory Business Trusts [Abstract]
Junior subordinated debenture, issuance date	16-Sep-14
Junior subordinated debenture, maturity date	30-Sep-24
Subordinated Debentures - NPB Capital Trust III [Member]
Statutory Business Trusts [Abstract]
Junior subordinated debenture, principal		$20,600
Junior subordinated debenture, issuance date		20-Feb-04
Junior subordinated debenture, maturity date		23-Apr-34
Junior subordinated debenture, variable interest rate basis		Three Month LIBOR
Junior subordinated debenture, basis spread on rate (in hundredths)		2.75%
Junior subordinated debenture, callable period after issuance (in years)		5 years
Subordinated Debentures - NPB Capital Trust IV [Member]
Statutory Business Trusts [Abstract]
Junior subordinated debenture, principal		20,600
Junior subordinated debenture, issuance date		25-Mar-04
Junior subordinated debenture, maturity date		7-Apr-34
Junior subordinated debenture, variable interest rate basis		Three Month LIBOR
Junior subordinated debenture, basis spread on rate (in hundredths)		2.75%
Junior subordinated debenture, callable period after issuance (in years)		5 years
Subordinated Debentures - NPB Capital Trust V [Member]
Statutory Business Trusts [Abstract]
Junior subordinated debenture, principal		20,600
Junior subordinated debenture, issuance date		7-Apr-04
Junior subordinated debenture, maturity date		7-Apr-34
Junior subordinated debenture, variable interest rate basis		Three Month LIBOR
Junior subordinated debenture, basis spread on rate (in hundredths)		2.75%
Junior subordinated debenture, callable period after issuance (in years)		5 years
Subordinated Debentures - NPB Capital Trust VI [Member]
Statutory Business Trusts [Abstract]
Junior subordinated debenture, principal		$15,400
Junior subordinated debenture, issuance date		19-Jan-06
Junior subordinated debenture, maturity date		15-Mar-36
Junior subordinated debenture, variable interest rate basis		Three Month LIBOR
Junior subordinated debenture, basis spread on rate (in hundredths)		1.38%
Junior subordinated debenture, callable period after issuance (in years)		5 years

ACCUMULATED_OTHER_COMPREHENSIV2

ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated other comprehensive income (loss), after tax [Abstract]
Unrealized gains (losses) on investment securities	$8,236	($11,691)	$41,058
Pension	-19,227	-9,466	-16,729
Total accumulated other comprehensive income (loss)	($10,991)	($21,157)	$24,329

EQUITY_Details

EQUITY (Details) (USD $)	3 Months Ended	12 Months Ended			3 Months Ended		12 Months Ended	3 Months Ended
EQUITY (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2009	Dec. 31, 2012	Sep. 30, 2014	Jun. 30, 2014
Treasury Stock Purchased (in shares)	7,300,000
Treasury Stock, Value, Acquired, Cost Method		$78,549,000	$0	$67,531,000
Stock Repurchase Program, Authorized Amount	125,000,000
Investor's ownership percentage after transaction (in hundredths)	8.30%
Dividends, Common Stock, Cash		57,962,000	43,697,000	61,401,000
Treasury Stock [Member]
Percentage authorized for repurchase of the total number of outstanding shares			5.00%
Treasury Stock Purchased (in shares)	7,300,000				300,000	7,000,000
Treasury Stock, Value, Acquired, Cost Method	75,000,000	78,549,000		67,531,000	3,000,000
Stock Repurchase Program, Authorized Amount	125,000,000
Treasury Stock Acquired, Average Cost Per Share	$10.25
Common Stock issuance Warburg Pincus LLC [Member]
Treasury Stock Purchased (in shares)		-7,289,155	0	-7,500,000
Shares issued in private placement value				25,900,000
Investor's ownership percentage after transaction (in hundredths)	8.30%
Dividend Reinvestment and Stock Purchase Plan [Member]
Percentage of discount on dividends reinvested as well as for new cash purchases (in hundredths)							10.00%
Optional cash contributions per month, maximum							10,000
Dividend Declared [Member]
Cash Dividends Declared and Paid Pertaining to Fiscal Year		57,963,000	43,700,000
Dividends, Common Stock, Cash		0.41
Dividends declared by quarter (in dollars per share)		$0.11	$0.10		$0.11	0.1			$0.10	$0.10
1st quarter 2013 dividend, paid in 4th quarter 2012 (in dollars per share)								0.1
Cash Dividend 1st quarter 2013 paid 4th quarter 2012								$15,000,000

BALANCE_SHEET_OFFSETTING_FINAN

BALANCE SHEET OFFSETTING FINANCIAL INSTRUMENTS ELIGIBLE FOR OFFSET (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivative Assets Subject To Master Netting Arrangement [Member] \| Interest Rate Swaps [Member]
Derivative, Fair Value [Line Items]
Gross Amount, Assets	$546	$5,718
Gross Amounts Offset in the Balance Sheet, Derivative Assets	0	0
Net Amount Presented in Balance Sheet, Assets	546	5,718
Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative, Fair Value [Line Items]
Gross Amounts, Liabilities		65,906
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities		0
Net Amount Presented in Balance Sheet, Liabilities		65,906
Derivative Liabilities Subject To Master Netting Arrangement [Member] \| Interest Rate Swaps [Member]
Derivative, Fair Value [Line Items]
Gross Amounts, Liabilities	24,786	15,906
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities	0	0
Net Amount Presented in Balance Sheet, Liabilities	24,786	15,906
Derivative Liabilities Subject To Master Netting Arrangement [Member] \| Repurchase Agreements [Member]
Derivative, Fair Value [Line Items]
Gross Amounts, Liabilities		50,000
Gross Amounts Offset in the Balance Sheet, Derivative Liabilities		0
Net Amount Presented in Balance Sheet, Liabilities		$50,000

FINANCIAL_INSTRUMENTS_WITH_OFF2

FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK, Notional Amounts (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Commitments to Extend Credit [Member]
Financial Instruments Representing Credit Risk [Line Items]
Notional Amount	$1,960,419	$1,769,135
Commitments to Fund Mortgages [Member]
Financial Instruments Representing Credit Risk [Line Items]
Notional Amount	27,599	22,242
Commitments to Sell Mortgages to Investors [Member]
Financial Instruments Representing Credit Risk [Line Items]
Notional Amount	20,228	15,349
Letters of Credit [Member]
Financial Instruments Representing Credit Risk [Line Items]
Notional Amount	$152,714	$142,246

BALANCE_SHEET_OFFSETTING_FINAN1

BALANCE SHEET OFFSETTING FINANCIAL INSTRUMENTS BALANCE SHEET OFFSETTING RECONCILIATION (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Liabilities		$65,906
Counterparty A [Member] \| Derivative Assets Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Assets	536	4,996
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	-536	-4,996
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	0	0
Derivative Assets Net Amount	0	0
Counterparty A [Member] \| Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Liabilities	10,142	13,111
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities	-536	-4,996
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	-9,614	-8,545
Derivative Liabilities Net Amount	-8	-430
Counterparty B [Member] \| Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Liabilities	7,378
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities	0
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	-7,140
Derivative Liabilities Net Amount	238
Counterparty C [Member] \| Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Liabilities	4,789
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities	0
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	-4,590
Derivative Liabilities Net Amount	199
All Other Counterparties \| Derivative Assets Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Assets	10	722
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	-10	-328
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	0	-300
Derivative Assets Net Amount	0	94
All Other Counterparties \| Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Liabilities	2,477	2,795
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities	-10	-328
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	-2,481	-1,960
Derivative Liabilities Net Amount	-14	507
All counterparties [Member] \| Derivative Assets Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Assets	546	5,718
Gross Amounts Not Offset in the Balance Sheet Financial Instruments, Derivative Assets	-546	-5,324
Gross Amounts Not Offset in the Balance Sheet Cash Collateral Received, Derivative Assets	0	-300
Derivative Assets Net Amount	0	94
All counterparties [Member] \| Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Liabilities	24,786	15,906
Gross Amount Not Offset in the Balance Sheet Financial Instruments, Derivative Liabilities	-546	-5,324
Gross Amount Not Offset in the Balance Sheet Cash Collateral Pledged, Derivative Liabilities	-23,825	-10,505
Derivative Liabilities Net Amount	415	77
Interest Rate Contract [Member] \| Derivative Assets Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Assets	546	5,718
Interest Rate Contract [Member] \| Derivative Liabilities Subject To Master Netting Arrangement [Member]
Derivative [Line Items]
Derivative Liabilities	$24,786	$15,906

FINANCIAL_INSTRUMENTS_WITH_OFF3

FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK, Interest Rate Swaps (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Derivative Assets, Interest Rate Swap Agreements, Fair Value Disclosure	$25,332	$21,624	$28,252
Derivative Liabilities, Interest Rate Swap Agreements, Fair Value Disclosure	25,332	21,624	28,252
Receive Fixed - Pay Floating Interest Rate Swaps [Member]
Derivative [Line Items]
Positions (in ones)	165	148
Derivative, Notional Amount	596,252	502,833
Asset	24,786	15,906
Liability	546	5,718
Receive rate (in hundredths)	4.64%	4.58%
Pay rate (in hundredths)	2.28%	2.31%
Life	5 years 10 months 20 days	5 years 11 months 16 days
Pay Fixed - Receive Floating Interest Rate Swaps [Member]
Derivative [Line Items]
Positions (in ones)	165	148
Derivative, Notional Amount	596,252	502,833
Asset	546	5,718
Liability	24,786	15,906
Receive rate (in hundredths)	2.28%	2.31%
Pay rate (in hundredths)	4.64%	4.58%
Life	5 years 10 months 20 days	5 years 11 months 16 days
Net Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, Notional Amount	1,192,504	1,005,666
Asset	25,332	21,624
Liability	$25,332	$21,624
Receive rate (in hundredths)	3.46%	3.45%
Pay rate (in hundredths)	3.46%	3.45%
Life	5 years 10 months 20 days	5 years 11 months 16 days

FINANCIAL_INSTRUMENTS_WITH_OFF4

FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK, Derivative Activity - Balance Sheet Effect (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets [Abstract]
Interest rate swap agreements	$25,332	$21,624	$28,252
Liabilities [Abstract]
Interest rate swap agreements	25,332	21,624	28,252
Fair Value [Member]
Assets [Abstract]
Interest rate locks	30		100
Liabilities [Abstract]
Interest rate locks		100
Forward sale commitments	$200	$100	$400

FINANCIAL_INSTRUMENTS_WITH_OFF5

FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK, Derivative Activity - Income Statement Effect (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Interest Rate Swap [Member] \| Other Operating Income [Member]
Income Statement Effect [Abstract]
Gain recognized in income	$3,700	$6,600	$5,700
Loss recognized in income	3,700	6,600	5,700
Other Derivatives [Member] \| Mortgage Banking Income [Member] \| Interest Rate Locks [Member]
Income Statement Effect [Abstract]
Gain recognized in income	72
Loss recognized in income		100	600
Other Derivatives [Member] \| Mortgage Banking Income [Member] \| Forward Sale Commitments [Member]
Income Statement Effect [Abstract]
Gain recognized in income		300	500
Loss recognized in income	$75

FINANCIAL_INSTRUMENTS_WITH_OFF6

FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK, Narrative (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Change in off-balance sheet credit and other risk reserve	$295	$0	$100
Reserve for off balance sheet exposure	$1,068	$951

FAIR_VALUE_MEASUREMENTS_AND_FA2

FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS NARRATIVE (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 24, 2014
Fair Value Disclosures [Abstract]
Net gains (losses) from fair value changes on subordinated debentures	$0	$2,111	$683
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Write-downs recorded on loans held-for-sale	0	0
TF acquisition, investment securities acquired				124,288
TF acquisition, available-for-sale securities acquired				36,190
Impaired loans, total recorded investment	61,977	57,716
Impaired and restructured loans, specific reserve	13,069	8,304
Additional write-downs on other real estate and repossessed assets		$85

FAIR_VALUE_MEASUREMENTS_AND_FA3

FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets [Abstract]
Investment securities available-for-sale	$1,530,661	$1,894,107
Assets, Fair Value Disclosure	1,556,023	1,915,731
Liabilities [Abstract]
Liabilities, Fair Value Disclosure, Recurring	25,490	21,750
Interest Rate Swaps [Member]
Assets [Abstract]
Derivative Assets	25,332	21,624
Liabilities [Abstract]
Derivative Liabilities	25,332	21,624
Forward Sale Commitments [Member]
Liabilities [Abstract]
Derivative Liabilities	158	84
Interest rate locks [Member]
Assets [Abstract]
Derivative Assets	30
Liabilities [Abstract]
Derivative Liabilities		42
U.S. Government Agency Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	1,007	990
State and Municipal Bonds [Member]
Assets [Abstract]
Investment securities available-for-sale	68,080	214,711
Agency Mortgage-backed Securities/Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale	1,451,461	1,659,180
Non-Agency Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale		4,258
Corporate Securities and Other [Member]
Assets [Abstract]
Investment securities available-for-sale	4,361	9,668
Equity Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	5,752	5,300
Level 1 [Member]
Assets [Abstract]
Investment securities available-for-sale	4,741	4,302
Assets, Fair Value Disclosure	4,741	4,302
Liabilities [Abstract]
Liabilities, Fair Value Disclosure, Recurring	0	0
Level 1 [Member] \| Interest Rate Swaps [Member]
Assets [Abstract]
Derivative Assets	0	0
Liabilities [Abstract]
Derivative Liabilities	0	0
Level 1 [Member] \| Forward Sale Commitments [Member]
Liabilities [Abstract]
Derivative Liabilities	0	0
Level 1 [Member] \| Interest rate locks [Member]
Assets [Abstract]
Derivative Assets	0
Liabilities [Abstract]
Derivative Liabilities		0
Level 1 [Member] \| U.S. Government Agency Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Level 1 [Member] \| State and Municipal Bonds [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Level 1 [Member] \| Agency Mortgage-backed Securities/Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Level 1 [Member] \| Non-Agency Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale		0
Level 1 [Member] \| Corporate Securities and Other [Member]
Assets [Abstract]
Investment securities available-for-sale	65	61
Level 1 [Member] \| Equity Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	4,676	4,241
Level 2 [Member]
Assets [Abstract]
Investment securities available-for-sale	1,523,694	1,884,061
Assets, Fair Value Disclosure	1,549,056	1,905,685
Liabilities [Abstract]
Liabilities, Fair Value Disclosure, Recurring	25,490	21,750
Level 2 [Member] \| Interest Rate Swaps [Member]
Assets [Abstract]
Derivative Assets	25,332	21,624
Liabilities [Abstract]
Derivative Liabilities	25,332	21,624
Level 2 [Member] \| Forward Sale Commitments [Member]
Liabilities [Abstract]
Derivative Liabilities	158	84
Level 2 [Member] \| Interest rate locks [Member]
Assets [Abstract]
Derivative Assets	30
Liabilities [Abstract]
Derivative Liabilities		42
Level 2 [Member] \| U.S. Government Agency Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	1,007	990
Level 2 [Member] \| State and Municipal Bonds [Member]
Assets [Abstract]
Investment securities available-for-sale	68,080	214,711
Level 2 [Member] \| Agency Mortgage-backed Securities/Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale	1,451,461	1,659,180
Level 2 [Member] \| Non-Agency Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale		4,258
Level 2 [Member] \| Corporate Securities and Other [Member]
Assets [Abstract]
Investment securities available-for-sale	3,146	4,922
Level 2 [Member] \| Equity Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Level 3 [Member]
Assets [Abstract]
Investment securities available-for-sale	2,226	5,744
Assets, Fair Value Disclosure	2,226	5,744
Liabilities [Abstract]
Liabilities, Fair Value Disclosure, Recurring	0	0
Level 3 [Member] \| Interest Rate Swaps [Member]
Assets [Abstract]
Derivative Assets	0	0
Liabilities [Abstract]
Derivative Liabilities	0	0
Level 3 [Member] \| Forward Sale Commitments [Member]
Liabilities [Abstract]
Derivative Liabilities	0	0
Level 3 [Member] \| Interest rate locks [Member]
Assets [Abstract]
Derivative Assets	0
Liabilities [Abstract]
Derivative Liabilities		0
Level 3 [Member] \| U.S. Government Agency Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Level 3 [Member] \| State and Municipal Bonds [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Level 3 [Member] \| Agency Mortgage-backed Securities/Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale	0	0
Level 3 [Member] \| Non-Agency Collateralized Mortgage Obligations [Member]
Assets [Abstract]
Investment securities available-for-sale		0
Level 3 [Member] \| Corporate Securities and Other [Member]
Assets [Abstract]
Investment securities available-for-sale	1,150	4,685
Level 3 [Member] \| Equity Securities [Member]
Assets [Abstract]
Investment securities available-for-sale	$1,076	$1,059

FAIR_VALUE_MEASUREMENTS_AND_FA4

FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS, Activity for Assets Measured at Fair Value on a Recurring Basis (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Total AFS Securities [Abstract]
Beginning balance	$1,894,107
Gains (losses) included in earnings	-1,631
Gains (losses) included in other comprehensive income	30,052
Purchases	378,411
Sales	-2,985
Maturities/Calls/Paydowns	-279,208
Fair Value Measurement Available For Sale Securities Reclassified from AFS to HTM	-488,085
Transfers	0
Ending balance	1,530,661
Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	4,302
Gains (losses) included in earnings	0
Gains (losses) included in other comprehensive income	439
Purchases	0
Sales	0
Maturities/Calls/Paydowns	0
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	0
Transfers	0
Ending balance	4,741
Level 1 [Member] \| Corporate Securities and Other [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	61
Gains (losses) included in earnings	0
Gains (losses) included in other comprehensive income	4
Purchases	0
Sales	0
Maturities/Calls/Paydowns	0
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	0
Transfers	0
Ending balance	65
Level 1 [Member] \| Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	4,241
Gains (losses) included in earnings	0
Gains (losses) included in other comprehensive income	435
Purchases	0
Sales	0
Maturities/Calls/Paydowns	0
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	0
Transfers	0
Ending balance	4,676
Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	1,884,061
Gains (losses) included in earnings	-1,633
Gains (losses) included in other comprehensive income	29,580
Purchases	378,411
Sales	-2,985
Maturities/Calls/Paydowns	-279,208
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	-484,532
Transfers	0
Ending balance	1,523,694
Level 2 [Member] \| U.S. Government Agency Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	990
Gains (losses) included in earnings	0
Gains (losses) included in other comprehensive income	17
Purchases	0
Sales	0
Maturities/Calls/Paydowns	0
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	0
Transfers	0
Ending balance	1,007
Level 2 [Member] \| State and Municipal Bonds [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	214,711
Gains (losses) included in earnings	2,412
Gains (losses) included in other comprehensive income	3,471
Purchases	0
Sales	0
Maturities/Calls/Paydowns	-20,633
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	-131,881
Transfers	0
Ending balance	68,080
Level 2 [Member] \| Agency Mortgage-backed Securities/Collateralized Mortgage Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	1,659,180
Gains (losses) included in earnings	-4,046
Gains (losses) included in other comprehensive income	25,893
Purchases	378,411
Sales	0
Maturities/Calls/Paydowns	-257,337
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	-350,640
Transfers	0
Ending balance	1,451,461
Level 2 [Member] \| Non-Agency Collateralized Mortgage Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	4,258
Gains (losses) included in earnings	1
Gains (losses) included in other comprehensive income	-36
Purchases	0
Sales	-2,985
Maturities/Calls/Paydowns	-1,238
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	0
Transfers	0
Ending balance	0
Level 2 [Member] \| Corporate Securities and Other [Member]
Fair Value, Assets Measured on Recurring Basis, Observable Input Reconciliation [Abstract]
Beginning balance	4,922
Gains (losses) included in earnings	0
Gains (losses) included in other comprehensive income	235
Purchases	0
Sales	0
Maturities/Calls/Paydowns	0
Fair Value Measurement With Observable Inputs Reconciliation Recurring Basis Asset Reclassified Securities	-2,011
Transfers	0
Ending balance	3,146
Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	5,744
Gains/(losses)/(impairment) included in earnings	2
Gains/(losses) included in other comprehensive income	33
Purchases	0
Sales	0
Maturities/calls/paydowns	0
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Asset Reclassified Securities	-3,553
Transfers	0
Ending balance	2,226
Level 3 [Member] \| Corporate Securities and Other [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	4,685
Gains/(losses)/(impairment) included in earnings	2
Gains/(losses) included in other comprehensive income	16
Purchases	0
Sales	0
Maturities/calls/paydowns	0
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Asset Reclassified Securities	-3,553
Transfers	0
Ending balance	1,150
Level 3 [Member] \| Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	1,059
Gains/(losses)/(impairment) included in earnings	0
Gains/(losses) included in other comprehensive income	17
Purchases	0
Sales	0
Maturities/calls/paydowns	0
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Asset Reclassified Securities	0
Transfers	0
Ending balance	$1,076

FAIR_VALUE_MEASUREMENTS_AND_FA5

FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS, Financial Assets Subject to Fair Value Adjustments on a Nonrecurring Basis (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held-for-sale	$4,178	$4,951
OREO and other repossessed assets	4,867	1,278
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held-for-sale	4,178	4,951
Impaired loans, net	48,908	49,412
OREO and other repossessed assets	4,867	1,278
Fair Value, Measurements, Nonrecurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held-for-sale	0	0
Impaired loans, net	0	0
OREO and other repossessed assets	0	0
Fair Value, Measurements, Nonrecurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held-for-sale	4,178	4,951
Impaired loans, net	0	0
OREO and other repossessed assets	0	0
Fair Value, Measurements, Nonrecurring [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Loans held-for-sale	0	0
Impaired loans, net	48,908	49,412
OREO and other repossessed assets	$4,867	$1,278

FAIR_VALUE_MEASUREMENTS_AND_FA6

FAIR VALUE MEASUREMENTS AND FAIR VALUE OF FINANCIAL INSTRUMENTS, Carrying Amounts and Estimated Fair Values (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
ASSETS
Investment securities available-for-sale	$1,530,661	$1,894,107
Investment securities held-to-maturity, Fair value	949,935	452,202
Interest rate swap agreements	25,332	21,624	28,252
LIABILITIES
Repurchase agreements	0	50,000
Senior Notes	125,000	0
Interest rate swap agreements	25,332	21,624	28,252
Carrying Amount [Member]
ASSETS
Cash and cash equivalents	413,839	283,523
Investment securities available-for-sale	1,530,661	1,894,107
Held To Maturity Securities Carrying Value	921,042	438,445
Loans held-for-sale	4,178	4,951
Loans, net	6,051,604	5,236,901
OREO and other repossessed assets	4,867	1,278
Interest rate swap agreements	25,332	21,624
Interest rate locks	30	0
LIABILITIES
Non-interest bearing deposits	1,085,158	970,051
Interest bearing deposits, non-maturity	4,418,926	3,852,036
Deposits with stated maturities	1,225,661	1,250,491
Customer repurchase agreements	607,705	551,736
Repurchase agreements	0	50,000
Federal Home Loan Bank advances	910,378	603,232
Subordinated debentures	77,321	77,321
Senior Notes	125,000	0
Interest rate swap agreements	25,332	21,624
Forward sale commitments	158	84
Interest rate locks	0	42
Estimate of Fair Value Measurement [Member]
LIABILITIES
Senior Notes	127,250	0
Fair Value [Member]
ASSETS
Cash and cash equivalents	413,839	283,523
Investment securities available-for-sale	1,530,661	1,894,107
Investment securities held-to-maturity, Fair value	949,935	452,202
Loans held-for-sale	4,306	5,077
Loans, net	5,957,399	5,168,470
OREO and other repossessed assets	4,867	1,278
Interest rate swap agreements	25,332	21,624
Interest rate locks	30	0
LIABILITIES
Non-interest bearing deposits	1,085,158	970,051
Interest bearing deposits, non-maturity	4,418,926	3,852,036
Deposits with stated maturities	1,223,210	1,253,920
Customer repurchase agreements	607,705	551,736
Repurchase agreements	0	51,332
Federal Home Loan Bank advances	916,280	611,890
Subordinated debentures	77,321	77,321
Interest rate swap agreements	25,332	21,624
Forward sale commitments	158	84
Interest rate locks	$0	$42

REGULATORY_MATTERS_Details

REGULATORY MATTERS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Regulatory Capital Requirements [Abstract]
Required reserve, Federal Reserve Bank	$28,742
Average reserve balance, Federal Reserve Bank	35,565
National Penn Bancshares, Inc. [Member]
Total capital (to risk-weighted assets) [Abstract]
Total capital	1,050,295	1,018,316
Total capital to risk-weighted assets (in hundredths)	15.16%	16.72%
Total capital for capital adequacy purposes	554,339	487,295
Total capital for capital adequacy purposes to risk-weighted assets (in hundredths)	8.00%	8.00%
Tier I capital (to risk-weighted assets) [Abstract]
Tier I capital	963,629	941,926
Tier I capital to risk-weighted assets (in hundredths)	13.91%	15.46%
Tier I capital for capital adequacy purposes	277,169	243,647
Tier I capital for capital adequacy purposes to risk-weighted assets (in hundredths)	4.00%	4.00%
Tier I Capital (to average assets) [Abstract]
Tier I capital	963,629	941,926
Tier I capital to average assets (in hundredths)	10.78%	11.63%
Tier I capital for capital adequacy purposes (average assets)	357,615	323,963
Tier I capital for capital adequacy purposes to average assets (in hundredths)	4.00%	4.00%
National Penn Bank [Member]
Total capital (to risk-weighted assets) [Abstract]
Total capital	853,919	870,973
Total capital to risk-weighted assets (in hundredths)	12.43%	14.40%
Total capital for capital adequacy purposes	549,548	483,796
Total capital for capital adequacy purposes to risk-weighted assets (in hundredths)	8.00%	8.00%
Total capital to be well capitalized	686,935	604,745
Total capital to risk-weighted assets (in hundredths)	10.00%	10.00%
Tier I capital (to risk-weighted assets) [Abstract]
Tier I capital	767,993	795,123
Tier I capital to risk-weighted assets (in hundredths)	11.18%	13.15%
Tier I capital for capital adequacy purposes	274,774	241,898
Tier I capital for capital adequacy purposes to risk-weighted assets (in hundredths)	4.00%	4.00%
Tier I capital to be well capitalized	412,161	362,847
Tier I capital to be well capitalized to risk-weighted assets (in hundredths)	6.00%	6.00%
Tier I Capital (to average assets) [Abstract]
Tier I capital	767,993	795,123
Tier I capital to average assets (in hundredths)	8.61%	9.85%
Tier I capital for capital adequacy purposes (average assets)	356,769	323,030
Tier I capital for capital adequacy purposes to average assets (in hundredths)	4.00%	4.00%
Tier I capital to be well capitalized (average assets)	$445,961	$403,788
Tier I capital to average assets (in hundredths)	5.00%	5.00%

BENEFIT_PLANS_OTHER_Details

BENEFIT PLANS OTHER (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Weighted-average assumptions used to determine net benefit obligations [Abstract]
Discount rate (in hundredths)	3.85%	4.75%
Weighted-average assumptions used to determine net periodic benefit cost [Abstract]
Discount rate (in hundredths)	4.74%	4.00%
Expected long-term return on plan assets (in hundredths)	7.26%	7.25%
Estimated future benefit payments [Abstract]
2015	$3,100
2016	2,572
2017	2,839
2018	3,099
2019	3,415
2020-2024	19,806
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	60,233	47,584	41,414
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	43,316	42,298
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16,917	5,286
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	34,512	33,475
Defined Benefit Plan, Actual Plan Asset Allocations	57.00%	70.00%
Equity Securities [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	34,512	33,475
Equity Securities [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity Securities [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	13,531	13,585
Defined Benefit Plan, Actual Plan Asset Allocations	22.00%	29.00%
Debt Securities [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7,960	8,299
Debt Securities [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5,571	5,286
Debt Securities [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Collective investment trust funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,346
Defined Benefit Plan, Actual Plan Asset Allocations	19.00%
Collective investment trust funds [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Collective investment trust funds [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,346
Collective investment trust funds [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Other Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	844	524
Defined Benefit Plan, Actual Plan Asset Allocations	2.00%	1.00%
Other Plan Assets [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	844	524
Other Plan Assets [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other Plan Assets [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$0	$0

BENEFIT_PLANS_Details

BENEFIT PLANS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Minimum Employee Contribution	1.00%
Eligibility for participation, minimum days of employment (in days)	30
Automatic enrollment, percentage of base compensation (in hundredths)	3.00%
Annual increases in contribution percentage (in hundredths)	1.00%
Maximum contribution percentage for automatic enrollment (in hundredths)	7.00%
Employer matching contribution (in hundredths)	50.00%
Maximum percentage of employee contribution that employer will match at 50% (in hundredths)	7.00%
Defined Contribution Plan, Matching Contributions	$3,536	$3,822	$3,894
Change in benefit obligation [Roll forward]
Benefit obligation at beginning of year	51,847	56,749
Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation	10,837	0
Interest cost	2,508	2,235	2,295
Effect of change in assumptions	15,612	-5,528
Benefits paid	-2,068	-1,720
Effect of change in experience	209	111
Benefit obligations at end of year	78,945	51,847	56,749
Change in plan assets [Roll forward]
Fair value of plan assets at beginning of year	47,584	41,414
Defined Benefit Plan, Assets Transferred to (from) Plan	10,939	0
Actual return on plan assets	4,015	8,054
Employer contribution	0	0
Benefits paid including assumed expenses	-2,305	-1,884
Fair value of plan assets at end of year	60,233	47,584	41,414
Funded status	-18,712	-4,263
Net loss not yet recognized in net periodic pension cost	29,704	14,685
Net periodic defined benefit pension expense [Abstract]
Service cost	234	164	124
Interest cost on projected benefit obligation	2,508	2,235	2,295
Expected return on plan assets	-3,523	-2,931	-2,758
Net amortization and deferral	313	634	562
Net periodic benefit cost	-468	102	223
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Basis of benefits, number of consecutive years of highest compensation (in years)	five
Basis of benefits, number of last consecutive years of employment (in years)	ten
Employee's Plan compensation, maximum per year	$50

SHAREBASED_COMPENSATION_PLANSD

SHARE-BASED COMPENSATION PLANS(Details)	12 Months Ended
SHARE-BASED COMPENSATION PLANS(Details)	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based awards vesting period, minimum (in years)	1 year
Employee and Non-Employee Directors Share-Based Awards Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based awards vesting period, minimum (in years)	1 year
Share-based awards vesting period, maximum (in years)	5 years
Minimum age at voluntary termination of employment for awards to vest immediately (in years)	60 years
Plan 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at end of period (in shares)	3,312,762
Previous Company Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)	10,353,077
Outstanding at end of period (in shares)	2,132,528
Acquisition Related Substitute Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)	3,022,185
Outstanding at end of period (in shares)	555,224
Non-Qualified Stock Options[Member] \| Employee and Non-Employee Directors Share-Based Awards Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of stock awards (in years)	10 years 1 month
Incentive Stock Options [Member] \| Employee and Non-Employee Directors Share-Based Awards Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of stock awards (in years)	10 years

SHAREBASED_COMPENSATION_IMPACT

SHARE-BASED COMPENSATION IMPACT ON FINANCIAL RESULTS(Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$4,315	$3,309	$3,513
Income tax benefit	-1,510	-1,158	-1,230
Reduction to net income	$2,805	$2,151	$2,283

SHAREBASED_COMPENSATION_UNRECO

SHARE-BASED COMPENSATION UNRECOGNIZED COMPENSATION COST(Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$5,489
Weighted Average Period Remaining (in years)	2 years 1 month 23 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	4,420
Weighted Average Period Remaining (in years)	2 years 1 month 24 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$1,069
Weighted Average Period Remaining (in years)	2 years 1 month 20 days

SHAREBASED_COMPENSATION_RESTRI

SHARE-BASED COMPENSATION RESTRICTED STOCK(Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	395,621	411,723	383,906
Weighted-average grant date fair value, granted	$11.14	$9.85	$8.80
Fair value of awards vested	$3,066	$1,988	$2,098
Non-Vested Restricted Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, beginning of period	897,189
Forfeited/Canceled	-33,100
Vested	-286,890
Non-vested, end of period	972,820
Weighted-average grant date fair value, period start	$9
Weighted-average grant date fair value, forfeited/canceled	$9.83
Weighted-average grant date fair value, vested	$8.83
Weighted-average grant date fair value, period end	$9.84

SHAREBASED_COMPENSATION_STOCK_

SHARE-BASED COMPENSATION STOCK OPTIONS(Details) (Stock Options [Member], USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Options [Member]
Fair value assumptions [Abstract]
Risk-free interest rates (in hundredths)	1.89%	1.20%	1.76%
Expected dividend yield (in hundredths)	3.59%	4.07%	2.27%
Expected volatility (in hundredths)	53.39%	53.13%	51.09%
Expected lives (in years)	5 years 11 months 1 day	6 years 11 months 22 days	7 years 10 months 16 days
Shares granted	246,000	247,750	239,250
Weighted-average grant date fair value	$4.13	$3.47	$3.80
Fair value of awards vested	$708	$675	$588
Proceeds from stock options exercised	467	900	708
Tax benefit recognized from stock options exercised	62	112	697
Intrinsic value of stock options exercised	$176	$321	$352

Recovered_Sheet1

SHARE-BASED COMPENSATION Stock Option Activity (Details) (Employee Stock Option [Member], USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Stock Option [Member]
Stock option activity [Roll Forward]
Outstanding, beginning of period	4,047,004
Granted (in shares)	246,000	247,750	239,250
Exercised (in shares)	-61,100
Forfeited (in shares)	-1,599,265
Outstanding, end of period	2,632,639	4,047,004
Exercisable, end of period	2,028,207
Weighted average exercise price, Outstanding, period start	$15.06
Weighted average exercise price, Granted (in dollars per share)	$11.15
Weighted average exercise price, exercised (in dollars per share)	$7.64
Weighted average exercise price, Forfeited (in dollars per share)	$16.83
Weighted average exercise price, Outstanding, period end	$13.79	$15.06
Weighted average exercise price, Exercisable, end of period	$15.03
Weighted average remaining contractual term, outstanding	3 years 5 months 16 days	2 years 7 months 6 days
Weighted average remaining contractual term, Exercisable (in years)	2 years 2 months 12 days
Aggregate intrinsic value, Outstanding, period start	$3,032
Aggregate intrinsic value, Outstanding, period end	2,016	3,032
Aggregate intrinsic value, Exercisable, end of period	$1,346

SHAREBASED_COMPENSATION_ESPPDe

SHARE-BASED COMPENSATION ESPP(Details) (Employee Stock Purchase Plan [Member], USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Stock Purchase Plan [Member]
Schedule of Employee Stock Purchase Plan [Line Items]
Shares authorized (in shares)	864,723
Purchase price of shares as a percentage of market value (in hundredths)	90.00%
ESPP shares purchased (in shares)	60,812	65,161	66,103
Weighted-average employee purchase price (in dollars per share)	$9.29	$9.44	$8.27

INCOME_TAXES_Details

INCOME TAXES (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
FEDERAL [Abstract]
Current	$21,116	$9,339	$21,556
Deferred federal expense (benefit)	12,393	59	10,845
Total federal and deferred income federal tax expense (benefit)	33,509	9,398	32,401
STATE [Abstract]
Current	0	183	353
Deferred state expense (benefit)	0	0	0
Total state and deferred state income tax expense (benefit)	0	183	353
Continuing operations, income tax reconciliation [Abstract]
Computed tax expense at statutory rate	46,276	22,038	46,082
State income tax expense, net	0	119	228
Decrease in taxes resulting from [Abstract]
Tax-exempt loan and investment income	-12,141	-12,927	-13,861
Amortization of goodwill and intangibles	-3	-3	-3
Other, net	-623	354	308
Income tax expense (benefit)	33,509	9,581	32,754
Deferred tax assets [Abstract]
Allowance for loan and lease losses	31,736	33,728
Tax credits	25,599	34,405
Net unrealized losses on investment securities available-for-sale	0	6,295
Deferred compensation	8,713	8,688
Net operating loss	983	702
Pension	5,549	1,532
Accrued expenses	4,141	5,796
Share-based compensation	3,475	3,044
Write-downs on other real estate	660	30
Depreciation	155	0
Deferred tax assets	81,011	94,220
Deferred tax liabilities [Abstract]
Investment securities available-for-sale	4,435	0
Core deposit intangibles & acquisition related	5,129	5,904
Loan costs	8,720	7,352
Amortization	4,740	4,115
Depreciation	0	257
Mortgage servicing rights	505	0
Deferred tax liabilities	23,529	17,628
Net deferred tax asset (included in other assets)	57,482	76,592
Operating Loss Carryforwards	983
Net operating loss (NOL) carry forward in years, subject to expiration	11
Low income housing, tax credit carry forward	300
Alternative minimum tax, credit carry forward	24,268
Reconciliation of Unrecognized Tax Benefits [Roll forward]
Balance, beginning	1,037	1,886
Additions based on tax positions related to the current year	75	107
Additions for tax positions of prior years	28	0
Reductions for tax positions of prior years	0	-343
Reductions as a result of lapse of applicable statute of limitations	-421	-613
Balance, Ending	$719	$1,037	$1,886

CONDENSED_BALANCE_SHEETSPARENT

CONDENSED BALANCE SHEETS-PARENT COMPANY ONLY (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Cash	$110,784	$102,241
Investment in bank subsidiaries	8,124	8,713
Other Assets	120,357	123,820
TOTAL ASSETS	9,750,865	8,591,848
Liabilities and shareholders' equity
Subordinated debt and other borrowings	77,321	77,321
Senior Notes	125,000	0
Shareholders' equity	1,188,639	1,131,866
TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY	9,750,865	8,591,848
Parent Company [Member]
ASSETS
Cash	96,714	11,056
Investment in bank subsidiaries	1,066,182	1,057,054
Investment in other subsidiaries	224,570	139,342
Other Assets	5,453	2,142
TOTAL ASSETS	1,392,919	1,209,594
Liabilities and shareholders' equity
Subordinated debt and other borrowings	77,321	77,321
Senior Notes	125,000	0
Other liabilities	1,959	407
Shareholders' equity	1,188,639	1,131,866
TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY	1,392,919	1,209,594
Year end cash transferred [Member]
CONDENSED BALANCE SHEETS
Cash transferred to a subsidiary of the Parent Company	$200,000	$115,000

CONDENSED_STATEMENTS_OF_INCOME

CONDENSED STATEMENTS OF INCOME-PARENT COMPANY ONLY (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Expense
Interest on subordinated debentures	$2,127	$3,092	$7,425
Income before income tax benefit	132,215	62,968	131,664
Income tax expense (benefit)	33,509	9,581	32,754
Net Income	98,706	53,387	98,910
Parent Company [Member]
Income
Equity in undistributed net loss earnings of subsidiaries	7,237	-24,961	-110,930
Dividends from subsidiaries	95,000	79,900	214,992
Interest and other income	64	2,206	913
Total Income	102,301	57,145	104,975
Expense
Interest on subordinated debentures	2,127	3,092	7,425
Other operating expenses	3,369	1,502	1,392
Total Expense	5,496	4,594	8,817
Income before income tax benefit	96,805	52,551	96,158
Income tax expense (benefit)	-1,901	-836	-2,752
Net Income	98,706	53,387	98,910
Earning of subsidiaries	$102,000

CONDENSED_STATEMENTS_OF_CASH_F

CONDENSED STATEMENTS OF CASH FLOWS-PARENT COMPANY ONLY (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net income	$98,706	$53,387	$98,910
Decrease (increase) in other assets	4,494	-13,740	13,096
(Decrease) increase in other liabilities	-12,519	29,424	29,857
Net cash provided by operating activities	112,133	162,057	167,108
Cash flows from investing activities
Net cash (used in) provided by investing activities	-239,710	-278,472	-97,745
Cash flows from financing activities
Proceeds from Issuance of Senior Long-term Debt	125,000	0	0
Treasury Stock Purchased (in $)	-78,549	0	-67,531
Net cash used in financing activities	257,893	-28,190	-92,757
Net increase (decrease) in cash and cash equivalents	130,316	-144,605	-23,394
Cash and cash equivalents at beginning of year	283,523	428,128	451,522
Cash and cash equivalents at end of year	413,839	283,523	428,128
Parent Company [Member]
Cash flows from operating activities
Net income	98,706	53,387	98,910
Equity in undistributed net loss earnings of subsidiaries	-7,237	24,961	110,930
Decrease (increase) in other assets	-3,311	-1,185	4,843
(Decrease) increase in other liabilities	1,552	407	-1,835
Other, net operating activities	0	-2,100	0
Net cash provided by operating activities	89,710	75,470	212,848
Cash flows from investing activities
Capital contributions to subsidiaries	-200,000	-115,000	-150,000
Capital received from subsidiaries	115,000	151,956	55,997
Outlays for business acquisitions	-58,436	0	0
Other, net investing activities	43,742	0	0
Net cash (used in) provided by investing activities	-99,694	36,956	-94,003
Cash flows from financing activities
Proceeds from advances from subsidiaries	0	0	1,063
Repayment of advances from subsidiaries	0	-65,206	-1,746
Proceeds from Issuance of Senior Long-term Debt	125,000	0	0
Common and treasury stock issuances	7,154	6,370	7,092
Treasury Stock Purchased (in $)	-78,549	0	-67,531
Cash dividends	-57,963	-43,697	-61,401
Other, net financing activities	100,000	0	0
Net cash used in financing activities	95,642	-102,533	-122,523
Net increase (decrease) in cash and cash equivalents	85,658	9,893	-3,678
Cash and cash equivalents at beginning of year	11,056	1,163	4,841
Cash and cash equivalents at end of year	$96,714	$11,056	$1,163

SEGMENT_REPORTING_Details

SEGMENT REPORTING (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
TOTAL ASSETS	$9,750,865	$8,591,848
Total deposits	6,729,745	6,072,578
Net interest income (expense)	257,114	252,062	254,006
Total non-interest income	92,175	98,067	95,968
Total non-interest expense	211,323	281,911	210,310
Net income (loss)	98,706	53,387	98,910
Consolidated Entities [Member]
Segment Reporting Information [Line Items]
TOTAL ASSETS	9,750,865	8,591,848	8,529,522
Total deposits	6,729,745	6,072,578	5,935,565
Net interest income (expense)	257,114	252,062	254,006
Total non-interest income	92,175	98,067	95,968
Total non-interest expense	211,323	281,911	210,310
Net income (loss)	98,706	53,387	98,910
Community Banking [Member]
Segment Reporting Information [Line Items]
TOTAL ASSETS	9,711,763	8,551,806	8,485,482
Total deposits	6,729,745	6,072,578	5,935,565
Net interest income (expense)	260,777	255,030	261,098
Total non-interest income	49,000	52,968	53,784
Total non-interest expense	176,418	244,906	173,507
Net income (loss)	96,585	50,840	100,624
Other [Member]
Segment Reporting Information [Line Items]
TOTAL ASSETS	39,102	40,042	44,040
Total deposits	0	0	0
Net interest income (expense)	-3,663	-2,968	-7,092
Total non-interest income	43,175	45,099	42,184
Total non-interest expense	34,905	37,005	36,803
Net income (loss)	$2,121	$2,547	($1,714)

SUBSEQUENT_EVENTS_Details

SUBSEQUENT EVENTS (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015
Subsequent Events [Abstract]
Treasury shares repurchase announcement date	22-Jan-15
Stock Repurchase Program, Authorized Amount	$125,000
Treasury shares repurchase date	6-Feb-15
Treasury Stock, Shares, Acquired	7,300,000
TreasuryStockAcquiredCostPerShare	$10.25
Investor's ownership percentage after transaction (in hundredths)	8.30%