Fulton Financial (FULT) 10-K 27 Feb 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2016	Feb. 17, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	FULTON FINANCIAL CORP
Entity Central Index Key	700,564
Trading Symbol	fult
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		174,097,000
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 2.3

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 118,763	$ 101,120
Interest-bearing deposits with other banks	233,763	230,300
Federal Reserve Bank and Federal Home Loan Bank stock	57,489	62,216
Loans held for sale	28,697	16,886
Available for sale investment securities	2,559,227	2,484,773
Loans, net of unearned income	14,699,272	13,838,602
Allowance for loan losses	(168,679)	(169,054)
Net Loans	14,530,593	13,669,548
Premises and equipment	217,806	225,535
Accrued interest receivable	46,294	42,767
Goodwill and intangible assets	531,556	531,556
Other assets	620,059	550,017
Total Assets	18,944,247	17,914,718
Liabilities
Noninterest-bearing	4,376,137	3,948,114
Interest-bearing	10,636,727	10,184,203
Total Deposits	15,012,864	14,132,317
Short-term borrowings:
Federal funds purchased	278,570	197,235
Other short-term borrowings	262,747	300,428
Total Short-Term Borrowings	541,317	497,663
Accrued interest payable	9,632	10,724
Other liabilities	329,916	282,578
Federal Home Loan Bank advances and long-term debt	929,403	949,542
Total Liabilities	16,823,132	15,872,824
Shareholders’ Equity
Common stock, $2.50 par value, 600 million shares authorized, 219.9 million shares issued in 2016 and 218.9 million shares issued in 2015	549,707	547,141
Additional paid-in capital	1,467,602	1,450,690
Retained earnings	732,099	641,588
Accumulated other comprehensive loss	(38,449)	(22,017)
Treasury stock, 45.8 million shares in 2016 and 44.7 million shares in 2015	(589,844)	(575,508)
Total Shareholders’ Equity	2,121,115	2,041,894
Total Liabilities and Shareholders’ Equity	$ 18,944,247	$ 17,914,718

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Common stock, par value (usd per share)	$ 2.5	$ 2.5
Common stock, shares authorized	600,000,000	600,000,000
Common stock, shares issued	219,900,000	218,900,000
Treasury stock, shares	45,800,000	44,700,000

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest Income
Loans, including fees	$ 543,385	$ 524,060	$ 530,308
Investment securities:
Taxable	44,975	45,279	50,651
Tax-exempt	9,662	7,879	8,977
Dividends	571	985	1,338
Loans held for sale	728	801	786
Other interest income	3,779	4,785	4,018
Total Interest Income	603,100	583,789	596,078
Interest Expense
Deposits	44,693	40,482	35,110
Short-term borrowings	855	372	1,608
Long-term debt	36,780	42,941	44,493
Total Interest Expense	82,328	83,795	81,211
Net Interest Income	520,772	499,994	514,867
Provision for credit losses	13,182	2,250	12,500
Net Interest Income After Provision for Credit Losses	507,590	497,744	502,367
Non-Interest Income
Service charges on deposit accounts	51,346	50,097	49,293
Investment management and trust services	45,270	44,056	44,605
Other service charges and fees	51,473	43,992	39,896
Mortgage banking income	19,415	18,208	17,107
Other	20,124	16,420	14,437
Investment securities gains (losses):
Net gains on sales of investment securities	2,550	9,066	2,071
Net other-than-temporary impairment losses	0	0	(30)
Investment securities gains, net	2,550	9,066	2,041
Total Non-Interest Income	190,178	181,839	167,379
Non-Interest Expense
Salaries and employee benefits	283,353	260,832	251,021
Net occupancy expense	47,611	47,777	48,130
Other outside services	23,883	27,785	28,404
Data processing	20,016	19,894	17,162
Software	16,903	14,746	12,758
Equipment expense	12,788	14,514	13,567
Professional fees	11,004	11,244	12,097
FDIC insurance expense	9,767	11,470	10,958
Marketing	7,044	7,324	8,133
Telecommunications	5,702	6,350	6,870
Supplies and postage	10,292	10,202	9,795
Operating risk loss	2,815	3,624	4,271
Other real estate owned and repossession expense	1,926	3,630	3,270
Loss on redemption of trust preferred securities	0	5,626	0
Intangible amortization	0	247	1,259
Other	36,415	34,895	31,551
Total Non-Interest Expense	489,519	480,160	459,246
Income Before Income Taxes	208,249	199,423	210,500
Income taxes	46,624	49,921	52,606
Net Income	$ 161,625	$ 149,502	$ 157,894
PER COMMON SHARE:
Net Income (Basic) (usd per share)	$ 0.93	$ 0.85	$ 0.85
Net Income (Diluted) (usd per share)	0.93	0.85	0.84
Cash Dividends (usd per share)	$ 0.41	$ 0.38	$ 0.34

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 161,625	$ 149,502	$ 157,894
Unrealized (losses) gains on available for sale investment securities:
Unrealized (loss) gain on securities	(14,891)	(7,717)	33,734
Reclassification adjustment for securities gains included in net income	(1,657)	(5,892)	(1,327)
Non-credit related unrealized (loss) gain on other-than-temporarily impaired debt securities	(185)	239	780
Net unrealized (losses) gains on available for sale investment securities	(16,733)	(13,370)	33,187
Unrealized gains on derivative financial instruments:
Amortization of unrealized loss on derivative financial instruments	16	75	136
Reclassification adjustment for loss on derivative financial instruments included in net income	0	2,456	0
Net unrealized gains on derivative financial instruments	16	2,531	136
Defined benefit pension plan and postretirement benefits:
Unrecognized pension and postretirement (cost) income	(931)	4,680	(13,168)
Amortization of net unrecognized pension and postretirement income	1,216	1,864	408
Non-credit related unrealized (loss) gain on other-than-temporarily impaired debt securities	0	0	(944)
Net unrealized gains (losses) on pension and postretirement plans	285	6,544	(13,704)
Other Comprehensive (Loss) Income	(16,432)	(4,295)	19,619
Total Comprehensive Income	$ 145,193	$ 145,207	$ 177,513

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Accelerated Stock Repurchase Program	Common Stock	Common StockAccelerated Stock Repurchase Program	Additional Paid-in Capital	Additional Paid-in CapitalAccelerated Stock Repurchase Program	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Treasury StockAccelerated Stock Repurchase Program
Beginning Balance at Dec. 31, 2013	$ 2,063,187		$ 544,568		$ 1,432,974		$ 463,843	$ (37,341)	$ (340,857)
Beginning Balance (in shares) at Dec. 31, 2013			192,652
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	157,894						157,894
Other comprehensive income	19,619							19,619
Stock issued, including related tax benefits	8,282		$ 987		1,684				5,611
Stock issued, including related tax benefits (in shares)			781
Stock-based compensation awards	5,865				5,865
Acquisition of treasury stock	(175,255)								(175,255)
Acquisition of treasury stock (in shares)			(14,509)
Deferred accelerated stock repurchase payment	(20,000)				(20,000)
Common stock cash dividends	(62,927)						(62,927)
Ending Balance at Dec. 31, 2014	1,996,665		$ 545,555		1,420,523		558,810	(17,722)	(510,501)
Ending Balance (in shares) at Dec. 31, 2014			178,924
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	149,502						149,502
Other comprehensive income	(4,295)							(4,295)
Stock issued, including related tax benefits	10,808		$ 1,586		4,229				4,993
Stock issued, including related tax benefits (in shares)			1,018
Stock-based compensation awards	5,938	$ 0			5,938	$ 20,000				$ (20,000)
Acquisition of treasury stock	(50,000)								(50,000)
Acquisition of treasury stock (in shares)			(3,976)	(1,790)
Common stock cash dividends	(66,724)						(66,724)
Ending Balance at Dec. 31, 2015	2,041,894		$ 547,141		1,450,690		641,588	(22,017)	(575,508)
Ending Balance (in shares) at Dec. 31, 2015			174,176
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	161,625						161,625
Other comprehensive income	(16,432)							(16,432)
Stock issued, including related tax benefits	17,131		$ 2,566		10,356				4,209
Stock issued, including related tax benefits (in shares)			1,350
Stock-based compensation awards	6,556				6,556
Acquisition of treasury stock	(18,545)								(18,545)
Acquisition of treasury stock (in shares)			(1,486)
Common stock cash dividends	(71,114)						(71,114)
Ending Balance at Dec. 31, 2016	$ 2,121,115		$ 549,707		$ 1,467,602		$ 732,099	$ (38,449)	$ (589,844)
Ending Balance (in shares) at Dec. 31, 2016			174,040

Consolidated Statements of Sha7

Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Stockholders' Equity [Abstract]
Common Stock cash dividends (usd per share)	$ 0.41	$ 0.38	$ 0.34

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 161,625	$ 149,502	$ 157,894
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	13,182	2,250	12,500
Depreciation and amortization of premises and equipment	27,403	27,605	24,555
Net amortization of investment security premiums	10,430	7,330	5,120
Deferred income tax expense	11,054	13,424	18,523
Investment securities gains, net	(2,550)	(9,066)	(2,041)
Gains on sales of mortgage loans	(15,685)	(13,264)	(10,063)
Proceeds from sales of mortgage loans held for sale	709,316	757,850	654,654
Originations of mortgage loans held for sale	(705,442)	(743,950)	(640,762)
Intangible amortization	0	247	1,259
Amortization of issuance costs and discount of long-term debt	617	582	337
Stock-based compensation	6,556	5,938	5,865
Excess tax benefits from stock-based compensation	(964)	(201)	(81)
(Increase) decrease in accrued interest receivable	(3,527)	(949)	2,219
Loss on redemption of trust preferred securities	0	5,626	0
Increase in other assets	(29,940)	(22,987)	(23,619)
(Decrease) increase in accrued interest payable	(1,092)	(7,321)	2,827
Increase in other liabilities	4,427	4,928	1,522
Total adjustments	23,785	28,042	52,815
Net cash provided by operating activities	185,410	177,544	210,709
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of securities available for sale	115,844	66,480	32,227
Proceeds from maturities and paydowns of securities available for sale	558,854	439,533	417,559
Purchase of securities available for sale	(782,765)	(683,839)	(164,769)
Decrease (increase) in short-term investments	1,264	130,567	(174,922)
Net increase in loans	(873,939)	(743,655)	(360,982)
Net purchases of premises and equipment	(19,674)	(27,113)	(24,561)
Net cash used in investing activities	(1,000,416)	(818,027)	(275,448)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in demand and savings deposits	992,253	971,312	722,791
Net (decrease) increase in time deposits	(111,706)	(206,501)	153,529
Increase (decrease) in short-term borrowings	43,654	167,944	(928,910)
Additions to long-term debt	215,884	347,778	262,113
Repayments of long-term debt	(236,640)	(540,079)	(6,621)
Net proceeds from issuance of common stock	16,167	10,607	8,201
Excess tax benefits from stock-based compensation	964	201	81
Dividends paid	(69,382)	(65,361)	(64,028)
Acquisition of treasury stock	(18,545)	(50,000)	(175,255)
Deferred accelerated stock repurchase payment	0	0	(20,000)
Net cash provided by (used in) financing activities	832,649	635,901	(48,099)
Net Increase (decrease) in Cash and Due From Banks	17,643	(4,582)	(112,838)
Cash and Due From Banks at Beginning of Year	101,120	105,702	218,540
Cash and Due From Banks at End of Year	118,763	101,120	105,702
Cash paid during period for:
Interest	83,420	91,116	78,384
Income taxes	$ 16,193	$ 13,378	$ 16,778

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Business: Fulton Financial Corporation ("Parent Company") is a multi-bank financial holding company which provides a full range of banking and financial services to businesses and consumers through its six wholly owned banking subsidiaries: Fulton Bank, N.A., Fulton Bank of New Jersey, The Columbia Bank, Lafayette Ambassador Bank, FNB Bank, N.A. and Swineford National Bank. In addition, the Parent Company owns the following non-bank subsidiaries: Fulton Financial Realty Company, Central Pennsylvania Financial Corp., FFC Management, Inc., FFC Penn Square, Inc. and Fulton Insurance Services Group, Inc. Collectively, the Parent Company and its subsidiaries are referred to as the Corporation. The Corporation’s primary sources of revenue are interest income on loans and investment securities and fee income on its products and services. Its expenses consist of interest expense on deposits and borrowed funds, provision for credit losses, other operating expenses and income taxes. The Corporation’s primary competition is other financial services providers operating in its region. Competitors also include financial services providers located outside the Corporation’s geographic market as a result of the growth in electronic delivery systems. The Corporation is subject to the regulations of certain federal and state agencies and undergoes periodic examinations by such regulatory authorities. The Corporation offers, through its banking subsidiaries, a full range of retail and commercial banking services in Pennsylvania, Delaware, Maryland, New Jersey and Virginia. Industry diversity is the key to the economic well-being of these markets, and the Corporation is not dependent upon any single customer or industry. Basis of Financial Statement Presentation: The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP") and include the accounts of the Parent Company and all wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosed amount of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the period. Actual results could differ from those estimates. The Corporation evaluates subsequent events through the date of the filing of this report with the Securities and Exchange Commission ("SEC"). Federal Reserve Bank and Federal Home Loan Bank Stock: Certain of the Corporation's wholly owned banking subsidiaries are members of the Federal Reserve Bank and Federal Home Loan Bank and are required by federal law to hold stock in these institutions according to predetermined formulas. These restricted investments are carried at cost on the consolidated balance sheets and are periodically evaluated for impairment. Each of the Corporation’s subsidiary banks is a member of the Federal Home Loan Bank for the region encompassing the headquarters of the subsidiary bank. Memberships are maintained with the Atlanta, New York and Pittsburgh regional Federal Home Loan Banks (collectively referred to as the "FHLB"). Investments: Debt securities are classified as held to maturity at the time of purchase when the Corporation has both the intent and ability to hold these investments until they mature. Such debt securities are carried at cost, adjusted for amortization of premiums and accretion of discounts using the effective yield method. The Corporation does not engage in trading activities, however, since the investment portfolio serves as a source of liquidity, all debt securities and marketable equity securities are classified as available for sale. Securities available for sale are carried at estimated fair value with the related unrealized holding gains and losses reported in shareholders’ equity as a component of other comprehensive income, net of tax. Realized securities gains and losses are computed using the specific identification method and are recorded on a trade date basis. Securities are evaluated periodically to determine whether declines in value are other-than-temporary. For its investments in equity securities, most notably its investments in stocks of financial institutions, the Corporation evaluates the near-term prospects of the issuers in relation to the severity and duration of the impairment. Equity securities with fair values less than cost are considered to be other-than-temporarily impaired if the Corporation does not have the ability and intent to hold the investments for a reasonable period of time that would be sufficient for a recovery of fair value. Impaired debt securities are determined to be other-than-temporarily impaired if the Corporation concludes at the balance sheet date that it has the intent to sell, or believes it will more likely than not be required to sell, an impaired debt security before a recovery of its amortized cost basis. Credit losses on other-than-temporarily impaired debt securities are recorded through earnings, regardless of the intent or the requirement to sell. Credit loss is measured as the difference between the present value of an impaired debt security’s expected cash flows and its amortized cost. Non-credit related other-than-temporary impairment charges are recorded as decreases to accumulated other comprehensive income as long as the Corporation has no intent or expected requirement to sell the impaired debt security before a recovery of its amortized cost basis. Fair Value Option: The Corporation has elected to measure mortgage loans held for sale at fair value. Derivative financial instruments related to mortgage banking activities are also recorded at fair value, as detailed under the heading "Derivative Financial Instruments," below. The Corporation determines fair value for its mortgage loans held for sale based on the price that secondary market investors would pay for loans with similar characteristics, including interest rate and term, as of the date fair value is measured. Changes in fair values during the period are recorded as components of mortgage banking income on the consolidated statements of income. Interest income earned on mortgage loans held for sale is classified in interest income on the consolidated statements of income. Loans and Revenue Recognition : Loan and lease financing receivables are stated at their principal amount outstanding, except for mortgage loans held for sale, which are carried at fair value. Interest income on loans is accrued as earned. Unearned income on lease financing receivables is recognized on a basis which approximates the effective yield method. In general, a loan is placed on non-accrual status once it becomes 90 days delinquent as to principal or interest. In certain cases a loan may be placed on non-accrual status prior to being 90 days delinquent if there is an indication that the borrower is having difficulty making payments, or the Corporation believes it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. When interest accruals are discontinued, unpaid interest previously credited to income is reversed. Non-accrual loans may be restored to accrual status when all delinquent principal and interest has been paid currently for six consecutive months or the loan is considered secured and in the process of collection. The Corporation generally applies payments received on non-accruing loans to principal until such time as the principal is paid off, after which time any payments received are recognized as interest income. If the Corporation believes that all amounts outstanding on a non-accrual loan will ultimately be collected, payments received subsequent to its classification as a non-accrual loan are allocated between interest income and principal. A loan that is 90 days delinquent may continue to accrue interest if the loan is both adequately secured and is in the process of collection. Past due status is determined based on contractual due dates for loan payments. An adequately secured loan is one that has collateral with a supported fair value that is sufficient to discharge the debt, and/or has an enforceable guarantee from a financially responsible party. A loan is considered to be in the process of collection if collection is proceeding through legal action or through other activities that are reasonably expected to result in repayment of the debt or restoration to current status in the near future. Loans and lease financing receivables deemed to be a loss are written off through a charge against the allowance for loan losses. Closed-end consumer loans are generally charged off when they become 120 days past due ( 180 days for open-end consumer loans) if they are not adequately secured by real estate. All other loans are evaluated for possible charge-off when it is probable that the balance will not be collected, based on the ability of the borrower to pay and the value of the underlying collateral. Principal recoveries of loans previously charged off are recorded as increases to the allowance for loan losses. Loan Origination Fees and Costs: Loan origination fees and the related direct origination costs are deferred and amortized over the life of the loan as an adjustment to interest income generally using the effective yield method. For mortgage loans sold, net loan origination fees and costs are included in the gain or loss on sale of the related loan. Troubled Debt Restructurings ("TDRs"): Loans whose terms are modified are classified as TDRs if the Corporation grants the borrowers concessions and it is determined that those borrowers are experiencing financial difficulty. Concessions, whether negotiated or imposed by bankruptcy, granted under a TDR typically involve a temporary deferral of scheduled loan payments, an extension of a loan’s stated maturity date or a reduction in the interest rate. Non-accrual TDRs can be restored to accrual status if principal and interest payments, under the modified terms, are current for six consecutive months after modification. Allowance for Credit Losses: The allowance for credit losses consists of the allowance for loan losses and the reserve for unfunded lending commitments. The allowance for loan losses represents management’s estimate of incurred losses in the loan portfolio as of the balance sheet date and is recorded as a reduction to loans. The reserve for unfunded lending commitments represents management’s estimate of incurred losses in its unfunded loan commitments and is recorded in other liabilities on the consolidated balance sheets. The allowance for credit losses is increased by charges to expense, through the provision for credit losses, and decreased by charge-offs, net of recoveries. Management believes that the allowance for loan losses and the reserve for unfunded lending commitments are adequate as of the balance sheet date; however, future changes to the allowance or reserve may be necessary based on changes in any of the factors discussed in the following paragraphs. Maintaining an adequate allowance for credit losses is dependent upon various factors, including the ability to identify potential problem loans in a timely manner. For commercial loans, commercial mortgages and construction loans to commercial borrowers, an internal risk rating process is used. The Corporation believes that internal risk ratings are the most relevant credit quality indicator for these types of loans. The migration of loans through the various internal risk rating categories is a significant component of the allowance for credit loss methodology for these loans, which bases the probability of default on this migration. Assigning risk ratings involves judgment. The Corporation's loan review officers provide a separate assessment of risk rating accuracy. Risk ratings may be changed based on the ongoing monitoring procedures performed by loan officers or credit administration staff, or if specific loan review assessments identify a deterioration or an improvement in the loan. The following is a summary of the Corporation's internal risk rating categories: • Pass : These loans do not currently pose undue credit risk and can range from the highest to average quality, depending on the degree of potential risk. • Special Mention : These loans have an undue and unwarranted credit risk, but not to the point of justifying a classification of substandard. Loans in this category are currently acceptable, but are nevertheless potentially weak. • Substandard or Lower : These loans are inadequately protected by current sound worth and paying capacity of the borrower. There exists a well-defined weakness or weaknesses that jeopardize the normal repayment of the debt. The Corporation does not assign internal risk ratings for smaller balance, homogeneous loans, such as: home equity, residential mortgage, consumer, lease receivables and construction loans to individuals secured by residential real estate. For these loans, the most relevant credit quality indicator is delinquency status. The migration of loans through the various delinquency status categories is a significant component of the allowance for credit loss methodology for these loans, which bases the probability of default on this migration. The Corporation’s allowance for loan losses includes: 1) specific allowances allocated to loans evaluated for impairment under the Financial Accounting Standards Board's Accounting Standards Codification ("FASB ASC") Section 310-10-35; and 2) allowances calculated for pools of loans measured for impairment under FASB ASC Subtopic 450-20. A loan is considered to be impaired if it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. Impaired loans consist of all loans on non-accrual status and accruing TDRs. An allowance for loan losses is established for an impaired loan if its carrying value exceeds its estimated fair value. Impaired loans to borrowers with total outstanding commitments greater than or equal to $1.0 million are evaluated individually for impairment. Impaired loans to borrowers with total outstanding commitments less than $1.0 million are pooled and measured for impairment collectively. All loans evaluated for impairment under FASB ASC Section 310-10-35 are measured for losses on a quarterly basis. As of December 31, 2016 and 2015 , substantially all of the Corporation’s impaired loans to borrowers with total outstanding loan balances greater than or equal to $1.0 million were measured based on the estimated fair value of each loan’s collateral. Collateral could be in the form of real estate, in the case of impaired commercial mortgages and construction loans, or business assets, such as accounts receivable or inventory, in the case of commercial and industrial loans. Commercial and industrial loans may also be secured by real property. For loans secured by real estate, estimated fair values are determined primarily through appraisals performed by state certified third-party appraisers, discounted to arrive at expected net sale proceeds. For collateral dependent loans, estimated real estate fair values are also net of estimated selling costs. When a real estate secured loan becomes impaired, a decision is made regarding whether an updated appraisal of the real estate is necessary. This decision is based on various considerations, including: the age of the most recent appraisal; the loan-to-value ratio based on the original appraisal; the condition of the property; the Corporation’s experience and knowledge of the real estate market; the purpose of the loan; market factors; payment status; the strength of any guarantors; and the existence and age of other indications of value such as broker price opinions, among others. The Corporation generally obtains updated state certified third-party appraisals for impaired loans secured predominantly by real estate every 12 months. As of December 31, 2016 and 2015 , approximately 62% and 69% , respectively, of impaired loans with principal balances greater than or equal to $1.0 million , whose primary collateral is real estate, were measured at estimated fair value using state certified third-party appraisals that had been updated within the preceding 12 months. When updated appraisals are not obtained for loans evaluated for impairment under FASB ASC Section 310-10-35 that are secured by real estate, fair values are estimated based on the original appraisal values, as long as the original appraisal indicated an acceptable loan-to-value position and, in the opinion of the Corporation's internal credit administration staff, there has not been a significant deterioration in the collateral value since the original appraisal was performed. Original appraisals are typically used only when the estimated collateral value, as adjusted appropriately for the age of the appraisal, results in a current loan-to-value ratio that is lower than the Corporation's loan-to-value requirements for new loans, generally less than 70% . For impaired loans with principal balances greater than or equal to $1.0 million secured by non-real estate collateral, such as accounts receivable or inventory, estimated fair values are determined based on borrower financial statements, inventory listings, accounts receivable agings or borrowing base certificates. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets. Liquidation or collection discounts are applied to these assets based upon existing loan evaluation policies. All loans not evaluated for impairment under FASB ASC Section 310-10-35 are evaluated for impairment under FASB ASC Subtopic 450-20, using a pooled loss evaluation approach. In general, these loans include residential mortgages, home equity loans, consumer loans, and lease receivables. Accruing commercial loans, commercial mortgages and construction loans are also evaluated for impairment under FASB ASC Subtopic 450-20. The Corporation segments its loan portfolio by general loan type, or "portfolio segments," as presented in the table under the heading, "Loans, net of unearned income," within Note 4, "Loans and Allowance for Credit Losses." Certain portfolio segments are further disaggregated and evaluated collectively for impairment based on "class segments," which are largely based on the type of collateral underlying each loan. For commercial loans, class segments include loans secured by collateral and unsecured loans. Construction loan class segments include loans secured by commercial real estate, loans to commercial borrowers secured by residential real estate and loans to individuals secured by residential real estate. Consumer loan class segments are based on collateral types and include direct consumer installment loans and indirect automobile loans. The Corporation calculates allowance allocation needs for loans measured under FASB ASC Subtopic 450-20 through the following procedures: • The loans are segmented into pools with similar characteristics, as noted above. Commercial loans, commercial mortgages and construction loans to commercial borrowers are further segmented into separate pools based on internally assigned risk ratings. Residential mortgages, home equity loans, consumer loans, and lease receivables are further segmented into separate pools based on delinquency status. • A loss rate is calculated for each pool through a migration analysis of historical losses as loans migrate through the various risk rating or delinquency categories. Estimated loss rates are based on a probability of default and a loss rate forecast. • The loss rate is adjusted to consider qualitative factors, such as economic conditions and trends. • The resulting adjusted loss rate is applied to the balance of the loans in the pool to arrive at the allowance allocation for the pool. The allocation of the allowance for credit losses is reviewed to evaluate its appropriateness in relation to the overall risk profile of the loan portfolio. The Corporation considers risk factors such as: local and national economic conditions; trends in delinquencies and non-accrual loans; the diversity of borrower industry types; and the composition of the portfolio by loan type. An unallocated allowance is maintained for factors and conditions that exist at the balance sheet date, but are not specifically identifiable, and to recognize the inherent imprecision in estimating and measuring loss exposure. Premises and Equipment: Premises and equipment are stated at cost, less accumulated depreciation and amortization. The provision for depreciation and amortization is generally computed using the straight-line method over the estimated useful lives of the related assets, which are a maximum of 50 years for buildings and improvements, 8 years for furniture and 5 years for equipment. Leasehold improvements are amortized over the shorter of the useful life or the non-cancelable lease term. Other Real Estate Owned ("OREO"): Assets acquired in settlement of mortgage loan indebtedness are recorded as OREO and are included in other assets on the consolidated balance sheets, initially at the lower of the estimated fair value of the asset, less estimated selling costs, or the carrying amount of the loan. Costs to maintain the assets and subsequent gains and losses on sales are included in OREO and repossession expense on the consolidated statements of income. Mortgage Servicing Rights ("MSRs"): The estimated fair value of MSRs related to residential mortgage loans sold and serviced by the Corporation is recorded as an asset upon the sale of such loans. MSRs are amortized as a reduction to servicing income over the estimated lives of the underlying loans. MSRs are stratified and evaluated for impairment by comparing each stratum's carrying amount to its estimated fair value. Fair values are determined through a discounted cash flows valuation completed by a third-party valuation expert. Significant inputs to the valuation include expected net servicing income, the discount rate and the expected lives of the underlying loans. Expected life is based on the contractual terms of the loans, as adjusted for prepayment projections. To the extent the amortized cost of the MSRs exceeds their estimated fair value, a valuation allowance is established through a charge against servicing income, included as a component of mortgage banking income on the consolidated statements of income. If subsequent valuations indicate that impairment no longer exists, the valuation allowance is reduced through an increase to servicing income. Derivative Financial Instruments: The Corporation manages its exposure to certain interest rate and foreign currency risks through the use of derivatives. None of the Corporation's outstanding derivative contracts are designated as hedges and none are entered into for speculative purposes. Derivative instruments are carried at fair value, with changes in fair values recognized in earnings as components of non-interest income or non-interest expense on the consolidated statements of income. Derivative contracts create counterparty credit risk with both the Corporation's customers and with institutional derivative counterparties. The Corporation manages counterparty credit risk through its credit approval processes, monitoring procedures and obtaining adequate collateral, when the Corporation determines it is appropriate to do so and in accordance with counterparty contracts. Mortgage Banking Derivatives In connection with its mortgage banking activities, the Corporation enters into commitments to originate certain fixed-rate residential mortgage loans for customers, also referred to as interest rate locks. In addition, the Corporation enters into forward commitments for the future sales or purchases of mortgage-backed securities to or from third-party counterparties to hedge the effect of changes in interest rates on the values of both the interest rate locks and mortgage loans held for sale. Forward sales commitments may also be in the form of commitments to sell individual mortgage loans at a fixed price at a future date. The amount necessary to settle each interest rate lock is based on the price that secondary market investors would pay for loans with similar characteristics, including interest rate and term, as of the date fair value is measured. Gross derivative assets and liabilities are recorded in other assets and other liabilities, respectively, on the consolidated balance sheets, with changes in fair values during the period recorded in mortgage banking income on the consolidated statements of income. Interest Rate Swaps The Corporation enters into interest rate swaps with certain qualifying commercial loan customers to meet their interest rate risk management needs. The Corporation simultaneously enters into interest rate swaps with dealer counterparties, with identical notional amounts and terms. The net result of these interest rate swaps is that the customer pays a fixed rate of interest and the Corporation receives a floating rate. These interest rate swaps are derivative financial instruments and the gross fair values are recorded in other assets and other liabilities on the consolidated balance sheets, with changes in fair value during the period recorded in other non-interest expense on the consolidated statements of income. Foreign Exchange Contracts The Corporation enters into foreign exchange contracts to accommodate the needs of its customers. Foreign exchange contracts are commitments to buy or sell foreign currency on a future date at a contractual price. The Corporation offsets its foreign exchange contract exposure with customers by entering into contracts with third-party correspondent financial institutions to mitigate its exposure to fluctuations in foreign currency exchange rates. The Corporation also holds certain amounts of foreign currency with international correspondent banks. The Corporation's policy limits the total net foreign currency open positions, which includes all outstanding contracts and foreign account balances, to $500,000 . Gross fair values are recorded in other assets and other liabilities on the consolidated balance sheets, with changes in fair values during the period recorded in other service charges and fees on the consolidated statements of income. Balance Sheet Offsetting: Although certain financial assets and liabilities may be eligible for offset on the consolidated balance sheets as they are subject to master netting arrangements or similar agreements, the Corporation elects to not offset such qualifying assets and liabilities. The Corporation is a party to interest rate swap transactions with financial institution counterparties and customers. Under these agreements, the Corporation has the right to net-settle multiple contracts with the same counterparty in the event of default on, or termination of, any one contract. Cash collateral is posted by the party with a net liability position in accordance with contract thresholds and can be used to settle the fair value of the interest rate swap agreements in the event of default. The Corporation is also a party to foreign currency exchange contracts with financial institution counterparties, under which the Corporation has the right to net-settle multiple contracts with the same counterparty in the event of default on, or termination of, any one contract. As with interest rate swap contracts, cash collateral is posted by the party with a net liability position in accordance with contract thresholds and can be used to settle the fair value of the foreign currency exchange contracts in the event of default. For additional details, see "Note 10 - Derivative Financial Instruments." The Corporation also enters into agreements with customers in which it sells securities subject to an obligation to repurchase the same or similar securities, referred to as repurchase agreements. Under these agreements, the Corporation may transfer legal control over the assets but still maintain effective control through agreements that both entitle and obligate the Corporation to repurchase the assets. Therefore, repurchase agreements are reported as secured borrowings, classified in short-term borrowings on the consolidated balance sheets, while the securities underlying the repurchase agreements remain classified with investment securities on the consolidated balance sheets. The Corporation has no intention of setting off these amounts, therefore, these repurchase agreements are not eligible for offset. Income Taxes: The Corporation accounts for income taxes in accordance with FASB ASC Topic 740, "Income Taxes" ("ASC Topic 740"). Under ASC Topic 740, deferred tax assets and liabilities are determined based on the differences between the financial statement carrying amounts and the tax bases of existing assets and liabilities and are measured at the prevailing enacted tax rates that will be in effect when these differences are settled or realized. ASC Topic 740 also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some portion or all of the deferred tax assets will not be realized. The realizability of the net deferred tax assets is evaluated quarterly by assessing the valuation allowance and by adjusting the amount of the allowance, if necessary. The Corporation considers all available positive and negative evidence including projected future taxable income and available tax planning strategies that could be implemented to realize the net deferred tax assets. The evaluation of both positive and negative evidence is a requirement pursuant to ASC Topic 740 in determining whether it is more-likely-than-not the net deferred tax assets will be realized. In the event the Corporation determines that the deferred income tax assets would be realized in the future in excess of their net recorded amount, an adjustment to the valuation allowance would be recorded, which would reduce the provision for income taxes. ASC Topic 740 also creates a single model to address uncertainty in tax positions, and clarifies the accounting for uncertainty in income taxes recognized in an enterprise's financial statements by prescribing the minimum recognition threshold a tax position is required to meet before being recognized in an enterprise's financial statements. It also provides guidance on derecognition, measurement, classification, interest and penalties, accounting in interim periods, disclosure and transition. The liability for unrecognized tax benefits is included in other liabilities within the consolidated balance sheets at December 31, 2016 and 2015 . Stock-Based Compensation: The Corporation grants equity awards to employees, consisting of stock options, restricted stock, restricted stock units ("RSUs") and performance-based restricted stock units ("PSUs") under its Amended and Restated Equity and Cash Incentive Compensation Plan ("Employee Equity Plan"). In addition, employees may purchase stock under the Corporation’s Employee Stock Purchase Plan ("ESPP"). The Corporation also grants stock equity awards to non-employee members of its board of directors under the 2011 Directors’ Equity Participation Plan ("Directors’ Plan"). Under the Directors’ Plan, the Corporation can grant equity awards to non-employee holding company and subsidiary bank directors in the form of stock options, restricted stock or common stock. Stock option fair values are estimated through the use of the Black-Scholes valuation methodology as of the date of grant. Stock options carry terms of up to ten years. The fair value of restricted stock, RSUs and a majority of PSUs are based on the trading price of the Corporation's stock on the date of grant. The fair value of certain PSUs are estimated through the use of the Monte Carlo valuation methodology as of the date of grant. Equity awards issued under the Employee Equity Plan are generally granted annually and become fully vested over or after a three -year vesting period. The vesting period for non-performance-based awards represents the period during which employees are required to provide service in exchange for such awards. Equity awards under the Directors' Plan generally vest immediately upon grant. C

Restrictions on Cash and Due fr

Restrictions on Cash and Due from Banks	12 Months Ended
	Dec. 31, 2016
Cash and Due from Banks [Abstract]
Restrictions on Cash and Due From Banks	NOTE 2 – RESTRICTIONS ON CASH AND DUE FROM BANKS The Corporation’s subsidiary banks are required to maintain reserves, in the form of cash and balances with the Federal Reserve Bank, against their deposit liabilities. The amounts of such reserves as of December 31, 2016 and 2015 were $113.3 million and $91.1 million , respectively.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Investment Securities	NOTE 3 – INVESTMENT SECURITIES The following tables present the amortized cost and estimated fair values of investment securities, which were all classified as available for sale, as of December 31 : Amortized Gross Gross Estimated (in thousands) 2016 U.S. Government sponsored agency securities $ 132 $ 2 $ — $ 134 State and municipal securities 405,274 2,043 (15,676 ) 391,641 Corporate debt securities 112,016 1,978 (4,585 ) 109,409 Collateralized mortgage obligations 604,095 1,943 (12,178 ) 593,860 Mortgage-backed securities 1,353,292 6,546 (17,437 ) 1,342,401 Auction rate securities 107,215 — (9,959 ) 97,256 Total debt securities 2,582,024 12,512 (59,835 ) 2,534,701 Equity securities 12,231 12,295 — 24,526 Total $ 2,594,255 $ 24,807 $ (59,835 ) $ 2,559,227 2015 U.S. Government sponsored agency securities $ 25,154 $ 35 $ (53 ) $ 25,136 State and municipal securities 256,746 6,019 — 262,765 Corporate debt securities 100,336 2,695 (6,076 ) 96,955 Collateralized mortgage obligations 835,439 3,042 (16,972 ) 821,509 Mortgage-backed securities 1,154,935 10,104 (6,204 ) 1,158,835 Auction rate securities 106,772 — (8,713 ) 98,059 Total debt securities 2,479,382 21,895 (38,018 ) 2,463,259 Equity securities 14,677 6,845 (8 ) 21,514 Total $ 2,494,059 $ 28,740 $ (38,026 ) $ 2,484,773 Securities carried at $1.8 billion and $1.7 billion as of December 31, 2016 and 2015 , respectively, were pledged as collateral to secure public and trust deposits and customer repurchase agreements. Equity securities include common stocks of financial institutions (estimated fair value of $23.5 million and $20.6 million at December 31, 2016 and 2015 , respectively) and other equity investments (estimated fair value of $1.0 million and $914,000 at December 31, 2016 and 2015 , respectively). As of December 31, 2016 , the financial institutions stock portfolio had a cost basis of $11.5 million and an estimated fair value of $23.5 million , including an investment in a single financial institution with a cost basis of $5.8 million and an estimated fair value of $11.9 million . This investment accounted for 50.5% of the estimated fair value of the Corporation's investments in the common stocks of publicly traded financial institutions. No other investment in the financial institutions stock portfolio exceeded 10% of the portfolio's estimated fair value. The amortized cost and estimated fair values of debt securities as of December 31, 2016 , by contractual maturity, are shown in the following table. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Estimated (in thousands) Due in one year or less $ 54,727 $ 55,027 Due from one year to five years 28,720 29,342 Due from five years to ten years 95,658 96,933 Due after ten years 445,532 417,138 624,637 598,440 Collateralized mortgage obligations (1) 604,095 593,860 Mortgage-backed securities (1) 1,353,292 1,342,401 Total debt securities $ 2,582,024 $ 2,534,701 (1) Maturities for mortgage-backed securities and collateralized mortgage obligations are dependent upon the interest rate environment and prepayments on the underlying loans. The following table presents information related to gross gains and losses on the sales of equity and debt securities, and losses recognized for other-than-temporary impairment of investments: Gross Gross Other- Net (in thousands) 2016: Equity securities $ 2,005 $ (10 ) $ — $ 1,995 Debt securities 581 (26 ) — 555 Total $ 2,586 $ (36 ) $ — $ 2,550 2015: Equity securities $ 6,496 $ (1 ) $ — $ 6,495 Debt securities 2,571 — — 2,571 Total $ 9,067 $ (1 ) $ — $ 9,066 2014: Equity securities $ 335 $ — $ (12 ) $ 323 Debt securities 2,058 (322 ) (18 ) 1,718 Total $ 2,393 $ (322 ) $ (30 ) $ 2,041 There were no other-than-temporary impairment charges in 2016 or 2015. In 2014, there were $30,000 of other-than-temporary impairment charges, consisting of $12,000 of impairment charges on equity securities and $18,000 of charges on pooled trust preferred securities. The following table presents a summary of the cumulative credit related other-than-temporary impairment charges, recognized as components of earnings, for debt securities held by the Corporation at December 31 : 2016 2015 2014 (in thousands) Balance of cumulative credit losses on debt securities, beginning of year $ (11,510 ) $ (16,242 ) $ (20,691 ) Additions for credit losses recorded which were not previously recognized as components of earnings — — (18 ) Reductions for securities sold during the period — 4,730 4,460 Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security — 2 7 Balance of cumulative credit losses on debt securities, end of year $ (11,510 ) $ (11,510 ) $ (16,242 ) Other-than-temporary impairment charges related to investments in common stocks of financial institutions were due to the severity and duration of the declines in fair values of certain financial institution stocks, in conjunction with management’s assessment of the near-term prospects of each specific financial institution. The credit related other-than-temporary impairment charges for debt securities were determined based on expected cash flows models. The following table presents the gross unrealized losses and estimated fair values of investments, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of December 31, 2016 . There were no gross unrealized losses on equity securities as of December 31, 2016 . Less Than 12 months 12 Months or Longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized (in thousands) State and municipal securities $ 247,509 $ (15,676 ) $ — $ — $ 247,509 $ (15,676 ) Corporate debt securities 11,922 (110 ) 34,629 (4,475 ) 46,551 (4,585 ) Collateralized mortgage obligations 166,905 (3,899 ) 258,237 (8,279 ) 425,142 (12,178 ) Mortgage-backed securities 1,137,510 (17,437 ) — — 1,137,510 (17,437 ) Auction rate securities — — 97,256 (9,959 ) 97,256 (9,959 ) Total debt securities 1,563,846 (37,122 ) 390,122 (22,713 ) 1,953,968 (59,835 ) For comparative purposes, the following table presents gross unrealized losses and the estimated fair value of investments, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2015. Less Than 12 months 12 Months or Longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized (in thousands) U.S. Government sponsored agency securities $ 9,957 $ (53 ) $ — $ — $ 9,957 $ (53 ) Corporate debt securities 12,892 (97 ) 33,036 (5,979 ) 45,928 (6,076 ) Collateralized mortgage obligations 166,007 (1,467 ) 467,778 (15,505 ) 633,785 (16,972 ) Mortgage-backed securities 611,920 (4,783 ) 63,818 (1,421 ) 675,738 (6,204 ) Auction rate securities — — 98,059 (8,713 ) 98,059 (8,713 ) Total debt securities 800,776 (6,400 ) 662,691 (31,618 ) 1,463,467 (38,018 ) Equity securities — — 14 (8 ) 14 (8 ) Total $ 800,776 $ (6,400 ) $ 662,705 $ (31,626 ) $ 1,463,481 $ (38,026 ) The Corporation’s collateralized mortgage obligations and mortgage-backed securities have contractual terms that generally do not permit the issuer to settle the securities at a price less than the amortized cost of the investment. Because the decline in fair value of these securities is attributable to changes in interest rates and not credit quality, and because the Corporation does not have the intent to sell and does not believe it will more likely than not be required to sell any of these securities prior to a recovery of their fair value to amortized cost, the Corporation did not consider these investments to be other-than-temporarily impaired as of December 31, 2016 . As of December 31, 2016 , all student loan auction rate certificates ("ARCs") were current and making scheduled interest payments and were rated above investment grade, with approximately $5.5 million , or 6% , "AAA" rated and $91.8 million , or 94% , "AA" rated. All of the loans underlying the ARCs have principal payments which are guaranteed by the federal government. Based on management’s evaluations, ARCs with a fair value of $97.3 million were not subject to any other-than-temporary impairment charges as of December 31, 2016 . The Corporation does not have the intent to sell and does not believe it will more likely than not be required to sell these securities prior to a recovery of their fair value to amortized cost, which may be at maturity. The majority of the Corporation’s available for sale corporate debt securities are issued by financial institutions. The following table presents the amortized cost and estimated fair values of corporate debt securities as of December 31 : 2016 2015 Amortized Estimated Amortized Estimated (in thousands) Single-issuer trust preferred securities $ 43,746 $ 39,829 $ 44,648 $ 39,106 Subordinated debt 46,231 46,723 39,610 40,779 Senior debt 18,037 18,433 12,043 12,329 Pooled trust preferred securities — 422 — 706 Corporate debt securities issued by financial institutions 108,014 105,407 96,301 92,920 Other corporate debt securities 4,002 4,002 4,035 4,035 Available for sale corporate debt securities $ 112,016 $ 109,409 $ 100,336 $ 96,955 Single-issuer trust preferred securities had an unrealized loss of $3.9 million as of December 31, 2016 . Six of the 19 single-issuer trust preferred securities held were rated below investment grade by at least one ratings agency, with an amortized cost of $11.5 million and an estimated fair value of $10.0 million as of December 31, 2016 . All of the single-issuer trust preferred securities rated below investment grade were rated "BB" or "Ba." Two single-issuer trust preferred securities with an amortized cost of $3.7 million and an estimated fair value of $2.5 million as of December 31, 2016 were not rated by any ratings agency. Based on management's evaluations, corporate debt securities with a fair value of $109.4 million were not subject to any additional other-than-temporary impairment charges as of December 31, 2016 . The Corporation does not have the intent to sell and does not believe it will more likely than not be required to sell any of these securities prior to a recovery of their fair value to amortized cost, which may be at maturity.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Loans and Allowance for Credit Losses	NOTE 4 – LOANS AND ALLOWANCE FOR CREDIT LOSSES Loans, net of unearned income Loans, net of unearned income are summarized as follows as of December 31 : 2016 2015 (in thousands) Real estate – commercial mortgage $ 6,018,582 $ 5,462,330 Commercial – industrial, financial and agricultural 4,087,486 4,088,962 Real estate – home equity 1,625,115 1,684,439 Real estate – residential mortgage 1,601,994 1,376,160 Real estate – construction 843,649 799,988 Consumer 291,470 268,588 Leasing and other 246,704 170,914 Overdrafts 3,662 2,737 Loans, gross of unearned income 14,718,662 13,854,118 Unearned income (19,390 ) (15,516 ) Loans, net of unearned income $ 14,699,272 $ 13,838,602 The Corporation has extended credit to the officers and directors of the Corporation and to their associates. These related-party loans are made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with unrelated persons and do not involve more than the normal risk of collection. The aggregate dollar amount of these loans, including unadvanced commitments, was $154.4 million and $191.6 million as of December 31, 2016 and 2015 , respectively. During 2016 , additions totaled $26.6 million and repayments totaled $63.8 million in related-party loans. The total portfolio of mortgage loans serviced by the Corporation for unrelated third parties was $4.7 billion and $4.8 billion as of December 31, 2016 and 2015 , respectively. Allowance for Credit Losses The following table presents the components of the allowance for credit losses as of December 31 : 2016 2015 2014 (in thousands) Allowance for loan losses $ 168,679 $ 169,054 $ 184,144 Reserve for unfunded lending commitments 2,646 2,358 1,787 Allowance for credit losses $ 171,325 $ 171,412 $ 185,931 The following table presents the activity in the allowance for credit losses for the years ended December 31 : 2016 2015 2014 (in thousands) Balance at beginning of year $ 171,412 $ 185,931 $ 204,917 Loans charged off (33,927 ) (32,157 ) (44,593 ) Recoveries of loans previously charged off 20,658 15,388 13,107 Net loans charged off (13,269 ) (16,769 ) (31,486 ) Provision for credit losses 13,182 2,250 12,500 Balance at end of year $ 171,325 $ 171,412 $ 185,931 The following table presents the activity in the allowance for loan losses by portfolio segment for the years ended December 31 and loans, net of unearned income, and their related allowance for loan losses, by portfolio segment, as of December 31: Real Estate - Commercial - Real Estate - Real Estate - Real Estate - Consumer Leasing Unallocated Total (in thousands) Balance at December 31, 2014 $ 53,493 $ 51,378 $ 28,271 $ 29,072 $ 9,756 $ 3,015 $ 1,799 $ 7,360 $ 184,144 Loans charged off (4,218 ) (15,639 ) (3,604 ) (3,612 ) (201 ) (2,227 ) (2,656 ) — (32,157 ) Recoveries of loans previously charged off 2,801 5,264 1,362 1,322 2,824 1,130 685 — 15,388 Net loans charged off (1,417 ) (10,375 ) (2,242 ) (2,290 ) 2,623 (1,097 ) (1,971 ) — (16,769 ) Provision for loan losses (1) (4,210 ) 16,095 (3,624 ) (5,407 ) (5,850 ) 667 2,640 1,368 1,679 Balance at December 31, 2015 47,866 57,098 22,405 21,375 6,529 2,585 2,468 8,728 169,054 Loans charged off (3,580 ) (15,276 ) (4,912 ) (2,326 ) (1,218 ) (2,800 ) (3,815 ) — (33,927 ) Recoveries of loans previously charged off 3,373 8,981 1,171 1,072 3,924 1,295 842 — 20,658 Net loans charged off (207 ) (6,295 ) (3,741 ) (1,254 ) 2,706 (1,505 ) (2,973 ) — (13,269 ) Provision for loan losses (1) (817 ) 3,550 8,137 2,808 (2,780 ) 2,494 3,697 (4,195 ) 12,894 Balance at December 31, 2016 $ 46,842 $ 54,353 $ 26,801 $ 22,929 $ 6,455 $ 3,574 $ 3,192 $ 4,533 $ 168,679 Allowance for loan losses at December 31, 2016 Measured for impairment under FASB ASC Subtopic 450-20 $ 36,680 $ 40,700 $ 17,290 $ 11,032 $ 4,587 $ 3,548 $ 3,192 $ 4,533 $ 121,562 Evaluated for impairment under FASB ASC Section 310-10-35 10,162 13,653 9,511 11,897 1,868 26 — N/A 47,117 $ 46,842 $ 54,353 $ 26,801 $ 22,929 $ 6,455 $ 3,574 $ 3,192 $ 4,533 $ 168,679 Loans, net of unearned income at December 31, 2016 Measured for impairment under FASB ASC Subtopic 450-20 $ 5,963,689 $ 4,038,511 $ 1,605,910 $ 1,555,946 $ 833,117 $ 291,430 $ 230,976 N/A $ 14,519,579 Evaluated for impairment under FASB ASC Section 310-10-35 54,893 48,975 19,205 46,048 10,532 40 — N/A 179,693 $ 6,018,582 $ 4,087,486 $ 1,625,115 $ 1,601,994 $ 843,649 $ 291,470 $ 230,976 N/A $ 14,699,272 Allowance for loan losses at December 31, 2015 Measured for impairment under FASB ASC Subtopic 450-20 $ 35,395 $ 42,515 $ 14,412 $ 7,953 $ 4,134 $ 2,563 $ 1,764 $ 8,728 $ 117,464 Evaluated for impairment under FASB ASC Section 310-10-35 12,471 14,583 7,993 13,422 2,395 22 704 N/A 51,590 $ 47,866 $ 57,098 $ 22,405 $ 21,375 $ 6,529 $ 2,585 $ 2,468 $ 8,728 $ 169,054 Loans, net of unearned income at December 31, 2015 Measured for impairment under FASB ASC Subtopic 450-20 $ 5,404,036 $ 4,040,810 $ 1,668,673 $ 1,325,735 $ 784,002 $ 268,555 $ 156,710 N/A $ 13,648,521 Evaluated for impairment under FASB ASC Section 310-10-35 58,294 48,152 15,766 50,425 15,986 33 1,425 N/A 190,081 $ 5,462,330 $ 4,088,962 $ 1,684,439 $ 1,376,160 $ 799,988 $ 268,588 $ 158,135 N/A $ 13,838,602 (1) For the year ended December 31, 2016 , the provision for loan losses excluded a $288,000 increase in the reserve for unfunded lending commitments. The total provision for credit losses, comprised of allocations for both funded and unfunded loans, was $13.2 million for the year ended December 31, 2016 . For the year ended December 31, 2015 , the provision for loan losses excluded a $571,000 increase in the reserve for unfunded lending commitments. The total provision for credit losses was $2.3 million for the year ended December 31, 2015 . N/A – Not applicable. Impaired Loans The following table presents total impaired loans by class segment as of December 31 : 2016 2015 Unpaid Recorded Related Unpaid Recorded Related (in thousands) With no related allowance recorded: Real estate - commercial mortgage $ 28,757 $ 25,447 $ — $ 27,872 $ 22,596 $ — Commercial - secured 29,296 25,526 — 18,012 13,702 — Real estate - residential mortgage 4,689 4,689 — 4,790 4,790 — Construction - commercial residential 6,271 4,795 — 9,916 8,865 — 69,013 60,457 60,590 49,953 With a related allowance recorded: Real estate - commercial mortgage 37,132 29,446 10,162 45,189 35,698 12,471 Commercial - secured 27,767 22,626 13,198 39,659 33,629 14,085 Commercial - unsecured 1,122 823 455 971 821 498 Real estate - home equity 23,971 19,205 9,511 20,347 15,766 7,993 Real estate - residential mortgage 48,885 41,359 11,897 55,242 45,635 13,422 Construction - commercial residential 10,103 4,206 1,300 9,949 6,290 2,110 Construction - commercial 681 435 145 820 638 217 Construction - other 1,096 1,096 423 331 193 68 Consumer - indirect 19 19 12 14 14 8 Consumer - direct 21 21 14 19 19 14 Leasing and other and overdrafts — — — 1,658 1,425 704 150,797 119,236 47,117 174,199 140,128 51,590 Total $ 219,810 $ 179,693 $ 47,117 $ 234,789 $ 190,081 $ 51,590 As of December 31, 2016 and 2015 , there were $60.5 million and $50.0 million , respectively, of impaired loans that did not have a related allowance for loan loss. The estimated fair values of the collateral securing these loans exceeded their carrying amount, or the loans have been charged down to realizable collateral values. Accordingly, no specific valuation allowance was considered to be necessary. The following table presents average impaired loans, by class segment, for the years ended December 31 : 2016 2015 2014 Average Interest Income Average Interest Income Average Interest Income (in thousands) With no related allowance recorded: Real estate - commercial mortgage $ 24,232 $ 294 $ 25,345 $ 315 $ 23,467 $ 320 Commercial - secured 19,825 104 15,654 97 18,928 119 Commercial - unsecured — — 17 — — — Real estate - home equity — — — — 180 1 Real estate - residential mortgage 5,598 126 5,389 124 1,532 31 Construction - commercial residential 6,285 48 11,685 148 15,421 227 Construction - commercial — — 915 — 1,907 — 55,940 572 59,005 684 61,435 698 With a related allowance recorded: Real estate - commercial mortgage 31,737 384 39,232 475 38,240 524 Commercial - secured 25,857 130 25,660 150 20,991 129 Commercial - unsecured 887 4 1,749 6 895 3 Real estate - home equity 17,912 285 13,887 144 13,976 108 Real estate - residential mortgage 42,191 908 46,252 1,041 50,281 1,178 Construction - commercial residential 5,295 41 6,455 79 8,723 136 Construction - commercial 524 — 931 — 1,900 — Construction - other 682 — 263 — 387 — Consumer - indirect 15 1 16 1 7 — Consumer - direct 18 1 17 1 16 1 Leasing, other and overdrafts 854 — 285 — — — 125,972 1,754 134,747 1,897 135,416 2,079 Total $ 181,912 $ 2,326 $ 193,752 $ 2,581 $ 196,851 $ 2,777 (1) All impaired loans, excluding accruing TDRs, were non-accrual loans. Interest income recognized for the years ended December 31, 2016 , 2015 and 2014 represents amounts earned on accruing TDRs. Credit Quality Indicators and Non-performing Assets The following table presents internal credit risk ratings as of December 31 : Pass Special Mention Substandard or Lower Total 2016 2015 2016 2015 2016 2015 2016 2015 (dollars in thousands) Real estate - commercial mortgage $ 5,763,122 $ 5,204,263 $ 132,484 $ 102,625 $ 122,976 $ 155,442 $ 6,018,582 $ 5,462,330 Commercial - secured 3,686,152 3,696,692 128,873 92,711 118,527 136,710 3,933,552 3,926,113 Commercial -unsecured 145,922 156,742 4,481 2,761 3,531 3,346 153,934 162,849 Total commercial - industrial, financial and agricultural 3,832,074 3,853,434 133,354 95,472 122,058 140,056 4,087,486 4,088,962 Construction - commercial residential 113,570 140,337 15,447 17,154 13,172 21,812 142,189 179,303 Construction - commercial 635,963 552,710 3,412 3,684 5,115 3,597 644,490 559,991 Total real estate - construction (excluding construction - other) 749,533 693,047 18,859 20,838 18,287 25,409 786,679 739,294 Total $ 10,344,729 $ 9,750,744 $ 284,697 $ 218,935 $ 263,321 $ 320,907 $ 10,892,747 $ 10,290,586 % of Total 95.0 % 94.8 % 2.6 % 2.1 % 2.4 % 3.1 % 100.0 % 100.0 % The following table presents delinquency and non-performing status for loans that do not have internal credit risk ratings, by class segment, as of December 31 : Performing Delinquent (1) Non-performing (2) Total 2016 2015 2016 2015 2016 2015 2016 2015 (dollars in thousands) Real estate - home equity $ 1,602,687 $ 1,660,773 $ 9,274 $ 8,983 $ 13,154 $ 14,683 $ 1,625,115 $ 1,684,439 Real estate - residential mortgage 1,557,995 1,329,371 20,344 18,305 23,655 28,484 1,601,994 1,376,160 Real estate - construction - other 55,874 59,997 — 88 1,096 609 56,970 60,694 Consumer - direct 93,572 94,262 1,752 2,254 1,563 2,203 96,887 98,719 Consumer - indirect 190,656 166,823 3,599 2,809 328 237 194,583 169,869 Total consumer 284,228 261,085 5,351 5,063 1,891 2,440 291,470 268,588 Leasing, other and overdrafts 229,591 155,870 1,068 759 317 1,506 230,976 158,135 Total $ 3,730,375 $ 3,467,096 $ 36,037 $ 33,198 $ 40,113 $ 47,722 $ 3,806,525 $ 3,548,016 % of Total 98.0 % 97.7 % 0.9 % 1.0 % 1.1 % 1.3 % 100.0 % 100.0 % (1) Includes all accruing loans 30 days to 89 days past due. (2) Includes all accruing loans 90 days or more past due and all non-accrual loans. The following table presents total non-performing assets as of December 31 : 2016 2015 (in thousands) Non-accrual loans $ 120,133 $ 129,523 Loans 90 days or more past due and still accruing 11,505 15,291 Total non-performing loans 131,638 144,814 Other real estate owned 12,815 11,099 Total non-performing assets $ 144,453 $ 155,913 The following table presents past due status and non-accrual loans, by portfolio segment and class segment, as of December 31 : 2016 30-59 60-89 ≥ 90 Days Non- Total ≥ 90 Total Past Current Total (in thousands) Real estate - commercial mortgage $ 6,254 $ 1,622 $ 383 $ 38,936 $ 39,319 $ 47,195 $ 5,971,387 $ 6,018,582 Commercial - secured 6,660 2,616 959 41,589 42,548 51,824 3,881,728 3,933,552 Commercial - unsecured 898 35 152 760 912 1,845 152,089 153,934 Total Commercial - industrial, financial and agricultural 7,558 2,651 1,111 42,349 43,460 53,669 4,033,817 4,087,486 Real estate - home equity 6,596 2,678 2,543 10,611 13,154 22,428 1,602,687 1,625,115 Real estate - residential mortgage 15,600 4,744 5,224 18,431 23,655 43,999 1,557,995 1,601,994 Construction - commercial 743 — — 435 435 1,178 643,312 644,490 Construction - commercial residential 233 51 36 8,275 8,311 8,595 133,594 142,189 Construction - other — — — 1,096 1,096 1,096 55,874 56,970 Total Real estate - construction 976 51 36 9,806 9,842 10,869 832,780 843,649 Consumer - direct 1,211 541 1,563 — 1,563 3,315 93,572 96,887 Consumer - indirect 3,200 399 328 — 328 3,927 190,656 194,583 Total Consumer 4,411 940 1,891 — 1,891 7,242 284,228 291,470 Leasing, other and overdrafts 543 525 317 — 317 1,385 229,591 230,976 $ 41,938 $ 13,211 $ 11,505 $ 120,133 $ 131,638 $ 186,787 $ 14,512,485 $ 14,699,272 2015 30-59 60-89 ≥ 90 Days Non- Total ≥ 90 Total Past Current Total (in thousands) Real estate - commercial mortgage $ 6,469 $ 1,312 $ 439 $ 40,731 $ 41,170 $ 48,951 $ 5,413,379 $ 5,462,330 Commercial - secured 5,654 2,615 1,853 41,498 43,351 51,620 3,874,493 3,926,113 Commercial - unsecured 510 83 19 701 720 1,313 161,536 162,849 Total Commercial - industrial, financial and agricultural 6,164 2,698 1,872 42,199 44,071 52,933 4,036,029 4,088,962 Real estate - home equity 6,438 2,545 3,473 11,210 14,683 23,666 1,660,773 1,684,439 Real estate - residential mortgage 15,141 3,164 6,570 21,914 28,484 46,789 1,329,371 1,376,160 Construction - commercial 50 176 — 638 638 864 559,127 559,991 Construction - commercial residential 1,366 494 — 11,213 11,213 13,073 166,230 179,303 Construction - other 88 — 416 193 609 697 59,997 60,694 Total Real estate - construction 1,504 670 416 12,044 12,460 14,634 785,354 799,988 Consumer - direct 1,687 567 2,203 — 2,203 4,457 94,262 98,719 Consumer - indirect 2,308 501 237 — 237 3,046 166,823 169,869 Total Consumer 3,995 1,068 2,440 — 2,440 7,503 261,085 268,588 Leasing, other and overdrafts 483 276 81 1,425 1,506 2,265 155,870 158,135 $ 40,194 $ 11,733 $ 15,291 $ 129,523 $ 144,814 $ 196,741 $ 13,641,861 $ 13,838,602 The following table presents TDRs as of December 31 : 2016 2015 (in thousands) Real-estate - residential mortgage $ 27,617 $ 28,511 Real-estate - commercial mortgage 15,957 17,563 Construction - commercial residential 726 3,942 Commercial - secured 6,564 5,833 Real estate - home equity 8,594 4,556 Commercial - unsecured 63 120 Consumer - direct 20 19 Consumer - indirect 19 14 Total accruing TDRs 59,560 60,558 Non-accrual TDRs (1) 27,850 31,035 Total TDRs $ 87,410 $ 91,593 (1) Included within non-accrual loans in the preceding table. As of December 31, 2016 and 2015 , there were $ 3.6 million and $ 5.3 million , respectively, of commitments to lend additional funds to borrowers whose loans were modified under TDRs. The following table presents TDRs by class segment and type of concession for loans that were modified during the years ended December 31, 2016, 2015 and 2014: 2016 2015 2014 Number of Loans Post-Modification Recorded Investment Number of Loans Post-Modification Recorded Investment Number of Loans Post-Modification Recorded Investment (dollars in thousands) Commercial – secured: Extend maturity with rate concession — $ — 2 $ 127 3 $ 315 Extend maturity without rate concession 10 3,801 9 3,785 8 1,640 Commercial – unsecured: Extend maturity without rate concession 2 103 1 38 — — Real estate - commercial mortgage: Extend maturity with rate concession — — 5 2,014 1 60 Extend maturity without rate concession — — 4 639 7 6,781 Real estate - home equity: Extend maturity with rate concession — — 2 36 — — Extend maturity without rate concession 89 4,484 3 203 — — Bankruptcy 47 2,671 52 2,501 30 1,551 Real estate – residential mortgage: Extend maturity with rate concession — — 4 750 2 390 Extend maturity without rate concession 2 315 3 262 2 210 Bankruptcy 6 981 7 2,508 19 1,807 Construction - commercial residential: Extend maturity without rate concession — — 1 1,535 3 3,616 Consumer - direct: Bankruptcy 1 2 2 6 7 7 Consumer - indirect: Bankruptcy 1 21 1 12 4 20 Total 158 $ 12,378 96 $ 14,416 86 $ 16,397 The following table presents TDRs, by class segment, as of December 31, 2016 , 2015 and 2014 that were modified during the years ended December 31, 2016 , 2015 and 2014 and had a post-modification payment default during their respective year of modification. The Corporation defines a payment default as a single missed scheduled payment: 2016 2015 2014 Number of Loans Recorded Investment Number of Loans Recorded Investment Number of Loans Recorded Investment (dollars in thousands) Construction - commercial residential — $ — — $ — 2 $ 1,803 Real estate - commercial mortgage 1 118 4 359 2 1,660 Real estate - residential mortgage 8 1,500 4 445 11 1,430 Commercial - secured 6 2,497 8 3,549 4 1,208 Commercial - unsecured 1 26 — — — — Real estate - home equity 28 1,836 13 763 11 961 Consumer - indirect 1 19 — — — — Consumer - direct — — — — 1 1 Total 45 $ 5,996 29 $ 5,116 31 $ 7,063

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Premises and Equipment	NOTE 5 – PREMISES AND EQUIPMENT The following is a summary of premises and equipment as of December 31 : 2016 2015 (in thousands) Land $ 36,097 $ 37,380 Buildings and improvements 293,836 297,018 Furniture and equipment 137,282 136,029 Construction in progress 21,096 16,585 488,311 487,012 Less: Accumulated depreciation and amortization (270,505 ) (261,477 ) $ 217,806 $ 225,535

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	NOTE 6 – GOODWILL AND INTANGIBLE ASSETS The following table summarizes the changes in goodwill: 2016 2015 (in thousands) Goodwill $ 530,593 $ 530,593 Non-amortizing intangible assets 963 963 Balance at end of year $ 531,556 $ 531,556 All of the Corporation’s reporting units passed the 2016 goodwill impairment test, resulting in no goodwill impairment charges in 2016 . All reporting units, with total allocated goodwill of $530.6 million , had fair values that exceeded net book values by approximately 62% in the aggregate. The estimated fair values of the Corporation’s reporting units are subject to uncertainty, including future changes in fair values of banks in general and future operating results of reporting units, which could differ significantly from the assumptions used in the valuation of reporting units. Non-amortizing intangible assets consist of trade name intangible assets.

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2016
Transfers and Servicing [Abstract]
Mortgage Servicing Rights	NOTE 7 – MORTGAGE SERVICING RIGHTS The following table summarizes the changes in MSRs, which are included in other assets on the consolidated balance sheets: 2016 2015 (in thousands) Amortized cost: Balance at beginning of year $ 40,944 $ 42,148 Originations of mortgage servicing rights 5,485 6,166 Amortization expense (7,607 ) (7,370 ) Balance at end of year $ 38,822 $ 40,944 Valuation allowance: Balance at beginning of year $ — $ — Net additions to the valuation allowance (1,291 ) — Balance at end of year $ (1,291 ) $ — Net MSRs at end of year $ 37,531 $ 40,944 MSRs represent the economic value of existing contractual rights to service mortgage loans that have been sold. Accordingly, actual and expected prepayments of the underlying mortgage loans can impact the value of MSRs. The Corporation accounts for MSRs at the lower of amortized cost or fair value. The fair value of MSRs is estimated by discounting the estimated cash flows from servicing income, net of expense, over the expected life of the underlying loans at a discount rate commensurate with the risk associated with these assets. Expected life is based on the contractual terms of the loans, as adjusted for estimated prepayments. Based on a fair value analysis, the Corporation determined that net additions of $1.3 million to the valuation allowance were appropriate during 2016 . No valuation allowance was determined to be necessary as of December 31, 2015 . The estimated fair value of MSRs was $38.2 million and $45.3 million as of December 31, 2016 and 2015, respectively. Total MSR amortization expense, recognized as a reduction to mortgage banking income in the consolidated statements of income, was $7.6 million and $7.4 million in 2016 and 2015, respectively. Estimated MSR amortization expense for the next five years, based on balances as of December 31, 2016 and the estimated remaining lives of the underlying loans, follows (in thousands): Year 2017 $ 6,538 2018 6,087 2019 5,590 2020 5,043 2021 4,443

Deposits

Deposits	12 Months Ended
	Dec. 31, 2016
Deposits [Abstract]
Deposits	NOTE 8 – DEPOSITS Deposits consisted of the following as of December 31 : 2016 2015 (in thousands) Noninterest-bearing demand $ 4,376,137 $ 3,948,114 Interest-bearing demand 3,703,712 3,451,207 Savings and money market accounts 4,179,773 3,868,046 Time deposits 2,753,242 2,864,950 Total Deposits $ 15,012,864 $ 14,132,317 Included in time deposits were certificates of deposit equal to or greater than $100,000 of $1.2 billion as of both December 31, 2016 and 2015 . Time deposits of $250,000 or more were $374.4 million and $359.9 million as of December 31, 2016 and 2015 , respectively. The scheduled maturities of time deposits as of December 31, 2016 were as follows (in thousands): Year 2017 $ 1,333,954 2018 376,599 2019 665,027 2020 182,473 2021 105,934 Thereafter 89,255 $ 2,753,242

Short-Term Borrowings and Long-

Short-Term Borrowings and Long-Term Debt	12 Months Ended
	Dec. 31, 2016
Short-Term Borrowings and Long-Term Debt [Abstract]
Short-Term Borrowings and Long-Term Debt	NOTE 9 – SHORT-TERM BORROWINGS AND LONG-TERM DEBT Short-term borrowings as of December 31, 2016 , 2015 and 2014 and the related maximum amounts outstanding at the end of any month in each of the three years then ended are presented below. The securities underlying the repurchase agreements remain in available for sale investment securities. December 31, Maximum Outstanding 2016 2015 2014 2016 2015 2014 (in thousands) Federal funds purchased $ 278,570 $ 197,235 $ 6,219 $ 449,184 $ 266,338 $ 577,581 Short-term FHLB advances (1) — 110,000 70,000 — 200,000 600,000 Customer repurchase agreements 195,734 111,496 158,394 221,989 212,509 244,729 Customer short-term promissory notes 67,013 78,932 95,106 77,887 93,176 95,106 $ 541,317 $ 497,663 $ 329,719 (1) Represents FHLB advances with an original maturity term of less than one year. As of December 31, 2016 , the Corporation had aggregate availability under Federal funds lines of $1.1 billion , with $278.6 million borrowed against that amount. A combination of commercial real estate loans, commercial loans and securities were pledged to the Federal Reserve Bank of Philadelphia to provide access to Federal Reserve Bank Discount Window borrowings. As of December 31, 2016 and 2015 , the Corporation had $1.2 billion of collateralized borrowing availability at the Discount Window, and no outstanding borrowings. The following table presents information related to customer repurchase agreements: 2016 2015 2014 (dollars in thousands) Amount outstanding as of December 31 $ 195,734 $ 111,496 $ 158,394 Weighted average interest rate as of December 31 0.10 % 0.15 % 0.13 % Average amount outstanding during the year $ 184,978 $ 161,093 $ 197,432 Weighted average interest rate during the year 0.11 % 0.10 % 0.10 % FHLB advances with an original maturity of one year or more and long-term debt included the following as of December 31: 2016 2015 (in thousands) FHLB advances $ 567,240 $ 587,756 Subordinated debt 350,000 350,000 Junior subordinated deferrable interest debentures 16,496 16,496 Unamortized discounts and issuance costs (4,333 ) (4,710 ) $ 929,403 $ 949,542 Excluded from the preceding table is the Parent Company’s revolving line of credit with its subsidiary banks. As of December 31, 2016 and 2015 , there were no amounts outstanding under this line of credit. This line of credit, with a total commitment of $75.0 million , is secured by equity securities and insurance investments and bears interest at London Interbank Offered Rate ("LIBOR") for maturities of one month plus 2.00% . The amount that the Corporation is permitted to borrow under this commitment at any given time is subject to a formula based on a percentage of the value of the collateral pledged. Although balances drawn on the line of credit and related interest income and expense are eliminated in the consolidated financial statements, this borrowing arrangement is senior to the subordinated debt and the junior subordinated deferrable interest debentures. FHLB advances mature through March 2027 and carry a weighted average interest rate of 2.50% . As of December 31, 2016 , the Corporation had an additional borrowing capacity of approximately $3.1 billion with the FHLB. Advances from the FHLB are secured by FHLB stock, qualifying residential mortgages, investments and other assets. The following table summarizes the scheduled maturities of FHLB advances with an original maturity of one year or more and long-term debt as of December 31, 2016 (in thousands): Year 2017 $ 114,415 2018 — 2019 202,731 2020 142,370 2021 199,444 Thereafter 270,443 $ 929,403 In June 2015 , the Corporation issued $150.0 million of ten -year subordinated notes, which mature on November 15, 2024 and carry a fixed rate of 4.50% and an effective rate of approximately 4.69% as a result of discounts and issuance costs. Interest is paid semi-annually in May and November . In November 2014 , the Corporation issued $100.0 million of ten -year subordinated notes, which mature on November 15, 2024 and carry a fixed rate of 4.50% and an effective rate of approximately 4.87% as a result of discounts and issuance costs. Interest is paid semi-annually in May and November . In May 2007 , the Corporation issued $100.0 million of ten -year subordinated notes, which mature on May 1, 2017 and carry a fixed rate of 5.75% and an effective rate of approximately 5.96% as a result of discounts and issuance costs. Interest is paid semi-annually in May and November . During the third quarter of 2015, $150.0 million of TruPS, with a scheduled maturity of February 1, 2036 and an effective rate of approximately 6.52% , were redeemed. As a result of this transaction, the Corporation recorded a $5.6 million loss on redemption, included as a component of non-interest expense. The loss on redemption consisted of $1.8 million of unamortized issuance costs and $2.5 million , net of a $1.3 million tax effect, of unamortized losses on a cash flow hedge recorded in accumulated other comprehensive income. As of December 31, 2016, the Parent Company owned all of the common stock of three subsidiary trusts, which have issued TruPS in conjunction with the Parent Company issuing junior subordinated deferrable interest debentures to the trusts. The TruPS are redeemable on specified dates, or earlier if certain events arise. The following table provides details of the debentures as of December 31, 2016 (dollars in thousands): Debentures Issued to Fixed/ Interest Amount Maturity Callable Call Price Columbia Bancorp Statutory Trust Variable 3.49 % $ 6,186 06/30/34 03/31/17 100.0 Columbia Bancorp Statutory Trust II Variable 2.85 % 4,124 03/15/35 03/31/17 100.0 Columbia Bancorp Statutory Trust III Variable 2.73 % 6,186 06/15/35 03/31/17 100.0 $ 16,496

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	NOTE 10 – DERIVATIVE FINANCIAL INSTRUMENTS The following table presents the notional amounts and fair values of derivative financial instruments as of December 31 : 2016 2015 Notional Asset Notional Asset (in thousands) Interest Rate Locks with Customers Positive fair values $ 87,119 $ 863 $ 87,781 $ 1,291 Negative fair values 18,239 (227 ) 267 (16 ) Net interest rate locks with customers 636 1,275 Forward Commitments Positive fair values 70,031 2,223 69,045 205 Negative fair values 19,964 (112 ) 16,193 (24 ) Net forward commitments 2,111 181 Interest Rate Swaps with Customers Positive fair values 876,744 24,397 846,490 32,915 Negative fair values 583,060 (16,998 ) 8,757 (55 ) Net interest rate swaps with customers 7,399 32,860 Interest Rate Swaps with Dealer Counterparties Positive fair values 583,060 16,998 8,757 55 Negative fair values 876,744 (24,397 ) 846,490 (32,915 ) Net interest rate swaps with dealer counterparties (7,399 ) (32,860 ) Foreign Exchange Contracts with Customers Positive fair values 11,674 504 4,897 114 Negative fair values 4,659 (221 ) 8,050 (184 ) Net foreign exchange contracts with customers 283 (70 ) Foreign Exchange Contracts with Correspondent Banks Positive fair values 7,040 241 9,728 428 Negative fair values 12,869 (447 ) 6,899 (147 ) Net foreign exchange contracts with correspondent banks (206 ) 281 Net derivative fair value asset $ 2,824 $ 1,667 The following table presents the fair value gains and losses on derivative financial instruments for the years ended December 31: 2016 2015 2014 Statement of Income Classification (in thousands) Interest rate locks with customers $ (639 ) $ (110 ) $ 577 Mortgage banking income Forward commitments 1,930 1,345 (2,422 ) Mortgage banking income Interest rate swaps with customers (25,461 ) 13,342 20,406 Other non-interest expense Interest rate swaps with counterparties 25,461 (13,342 ) (20,406 ) Other non-interest expense Foreign exchange contracts with customers 353 (439 ) 688 Other service charges and fees Foreign exchange contracts with correspondent banks (487 ) 711 (880 ) Other service charges and fees Net fair value gains (losses) on derivative financial instruments $ 1,157 $ 1,507 $ (2,037 ) The Corporation has elected to record mortgage loans held for sale at fair value. The following table presents a summary of mortgage loans held for sale and the impact of the fair value election on the consolidated financial statements as of and for the years ended December 31, 2016 and 2015 : Cost (1) Fair Value Balance Sheet Fair Value Loss Statement of Income Classification (in thousands) December 31, 2016: Mortgage loans held for sale $ 28,708 $ 28,697 Loans held for sale $ (313 ) Mortgage banking income December 31, 2015: Mortgage loans held for sale 16,584 16,886 Loans held for sale (140 ) Mortgage banking income (1) Cost basis of mortgage loans held for sale represents the unpaid principal balance. The fair values of interest rate swap agreements and foreign exchange contracts the Corporation enters into with customers and dealer counterparties may be eligible for offset on the consolidated balance sheets as they are subject to master netting arrangements or similar agreements. The Corporation elects to not offset assets and liabilities subject to such arrangements on the consolidated financial statements. The following table presents the financial instruments that are eligible for offset, and the effects of offsetting, on the consolidated balance sheets as of December 31: Gross Amounts Gross Amounts Not Offset Recognized on the Consolidated on the Balance Sheets Consolidated Financial Cash Net Balance Sheets Instruments (1) Collateral (2) Amount (in thousands) 2016 Interest rate swap derivative assets $ 41,395 $ (15,117 ) $ — $ 26,278 Foreign exchange derivative assets with correspondent banks 241 (241 ) — — Total $ 41,636 $ (15,358 ) $ — $ 26,278 Interest rate swap derivative liabilities $ 41,395 $ (15,117 ) $ (4,010 ) $ 22,268 Foreign exchange derivative liabilities with correspondent banks 447 (241 ) (206 ) — Total $ 41,842 $ (15,358 ) $ (4,216 ) $ 22,268 2015 Interest rate swap derivative assets $ 32,970 $ (55 ) $ — $ 32,915 Foreign exchange derivative assets with correspondent banks 428 (147 ) — 281 Total $ 33,398 $ (202 ) $ — $ 33,196 Interest rate swap derivative liabilities $ 32,970 $ (55 ) $ (31,130 ) $ 1,785 Foreign exchange derivative liabilities with correspondent banks 147 (147 ) — — Total $ 33,117 $ (202 ) $ (31,130 ) $ 1,785 (1) For interest rate swap assets, amounts represent any derivative liability fair values that could be offset in the event of counterparty or customer default. For interest rate swap liabilities, amounts represent any derivative asset fair values that could be offset in the event of counterparty or customer default. (2) Amounts represent cash collateral posted on interest rate swap transactions and foreign exchange contracts with financial institution counterparties. Interest rate swaps with customers are collateralized by the underlying loans to those borrowers. Cash and securities collateral amounts are included in the table only to the extent of the net derivative fair values.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2016
Regulatory Matters [Abstract]
Regulatory Matters	NOTE 11 – REGULATORY MATTERS Regulatory Capital Requirements The Corporation’s subsidiary banks are subject to regulatory capital requirements administered by banking regulators. Failure to meet minimum capital requirements can trigger certain mandatory – and possibly additional discretionary – actions by regulators that, if undertaken, could have a direct material effect on the Corporation’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the subsidiary banks must meet specific capital guidelines that involve quantitative measures of the subsidiary banks’ assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The subsidiary banks’ capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. U.S. Basel III Capital Rules In July 2013, the Federal Reserve Board approved final rules (the "U.S. Basel III Capital Rules") establishing a new comprehensive capital framework for U.S. banking organizations and implementing the Basel Committee on Banking Supervision's December 2010 framework for strengthening international capital standards. The U.S. Basel III Capital Rules substantially revise the risk-based capital requirements applicable to bank holding companies and depository institutions. The minimum regulatory capital requirements established by the U.S. Basel III Capital Rules became effective for the Corporation on January 1, 2015, and become fully phased in on January 1, 2019. When fully phased in, the U.S. Basel III Capital Rules will require the Corporation and its bank subsidiaries to: • Meet a minimum Common Equity Tier 1 capital ratio of 4.50% of risk-weighted assets and a minimum Tier 1 capital of 6.00% of risk-weighted assets; • Continue to require a minimum Total capital ratio of 8.00% of risk-weighted assets and a minimum Tier 1 leverage capital ratio of 4.00% of average assets; • Maintain a "capital conservation buffer" of 2.50% above the minimum risk-based capital requirements, which must be maintained to avoid restrictions on capital distributions and certain discretionary bonus payments; and • Comply with a revised definition of capital to improve the ability of regulatory capital instruments to absorb losses. Certain non-qualifying capital instruments, including cumulative preferred stock and TruPS, will be excluded as a component of Tier 1 capital for institutions of the Corporation's size. The U.S. Basel III Capital Rules use a standardized approach for risk weightings that expand the risk-weightings for assets and off-balance sheet exposures from the previous 0%, 20%, 50% and 100% categories to a much larger and more risk-sensitive number of categories, depending on the nature of the assets and off-balance sheet exposures, resulting in higher risk weights for a variety of asset categories. When fully phased in on January 1, 2019, the Corporation and its bank subsidiaries will also be required to maintain a "capital conservation buffer" of 2.50% above the minimum risk-based capital requirements. The required minimum capital conservation buffer began to be phased in incrementally, starting at 0.625%, on January 1, 2016, and increasing to 1.25% on January 1, 2017, and will continue to increase to 1.875% on January 1, 2018 and 2.50% on January 1, 2019. The rules provide that the failure to maintain the "capital conservation buffer" will result in restrictions on capital distributions and discretionary cash bonus payments to executive officers. As a result, under the U.S. Basel III Capital Rules, if any of the Corporation's bank subsidiaries fails to maintain the required minimum capital conservation buffer, the Corporation will be subject to limits, and possibly prohibitions, on its ability to obtain capital distributions from such subsidiaries. If the Corporation does not receive sufficient cash dividends from its bank subsidiaries, it may not have sufficient funds to pay dividends on its capital stock, service its debt obligations or repurchase its common stock. In addition, the restrictions on payments of discretionary cash bonuses to executive officers may make it more difficult for the Corporation to retain key personnel. As of December 31, 2016 , the Corporation believes its current capital levels would meet the fully phased-in minimum capital requirements, including the new capital conservation buffers, as prescribed in the U.S. Basel III Capital Rules. As of December 31, 2016 and 2015 , each of the Corporation’s subsidiary banks was well capitalized under the regulatory framework for prompt corrective action based on their capital ratio calculations. To be categorized as well capitalized, these banks must maintain minimum total risk-based, Tier I risk-based, Common Equity Tier I risk-based and Tier I leverage ratios as set forth in the following table. There are no conditions or events since December 31, 2016 that management believes have changed the institutions’ categories. The following table presents the Total risk-based, Tier I risk-based, Common Equity Tier I risk-based and Tier I leverage requirements for the Corporation and its four significant subsidiaries with total assets in excess of $1 billion , as of December 31, 2016 , under the U.S. Basel III Capital Rules: 2016 Actual For Capital Well Capitalized Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) Total Capital (to Risk-Weighted Assets): Corporation $ 2,074,526 13.2 % $ 1,255,292 8.0 % N/A N/A Fulton Bank, N.A. 1,142,326 12.2 747,359 8.0 $ 934,199 10.0 % Fulton Bank of New Jersey 385,807 13.1 234,782 8.0 293,427 10.0 The Columbia Bank 203,890 12.2 133,836 8.0 167,294 10.0 Lafayette Ambassador Bank 175,254 14.6 96,100 8.0 120,125 10.0 Tier I Capital (to Risk-Weighted Assets): Corporation $ 1,637,150 10.4 % $ 941,469 6.0 % N/A N/A Fulton Bank, N.A 1,050,175 11.2 560,519 6.0 $ 747,359 8.0 % Fulton Bank of New Jersey 348,992 11.9 176,086 6.0 234,782 8.0 The Columbia Bank 185,983 11.1 100,377 6.0 133,836 8.0 Lafayette Ambassador Bank 166,186 13.8 72,075 6.0 96,100 8.0 Common Equity Tier I Capital (to Risk-weighted Assets): Corporation $ 1,637,150 10.4 % $ 706,102 4.5 % N/A N/A Fulton Bank, N.A 1,006,175 10.8 420,389 4.5 $ 607,229 6.5 % Fulton Bank of New Jersey 348,992 11.9 132,065 4.5 190,760 6.5 The Columbia Bank 185,983 11.1 72,282 4.5 108,741 6.5 Lafayette Ambassador Bank 166,186 13.8 54,056 4.5 78,081 6.5 Tier I Capital (to Average Assets): Corporation $ 1,637,150 9.0 % $ 727,745 4.0 % N/A N/A Fulton Bank, N.A 1,050,175 10.1 415,981 4.0 $ 519,977 5.0 % Fulton Bank of New Jersey 348,992 9.4 148,472 4.0 185,590 5.0 The Columbia Bank 185,983 8.6 86,310 4.0 107,888 5.0 Lafayette Ambassador Bank 166,186 10.9 61,129 4.0 76,412 5.0 N/A – Not applicable as "well capitalized" applies to banks only. The following table presents the Total risk-based, Tier I risk-based and Tier I leverage requirements as of December 31, 2015 , under U.S. Basel III Capital Rules: 2015 Actual For Capital Well Capitalized Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) Total Capital (to Risk-Weighted Assets): Corporation $ 1,997,926 13.2 % $ 1,214,868 8.0 % N/A N/A Fulton Bank, N.A. 1,088,709 12.2 714,734 8.0 $ 893,418 10.0 % Fulton Bank of New Jersey 373,465 12.6 236,691 8.0 295,864 10.0 The Columbia Bank 211,355 13.7 123,260 8.0 154,075 10.0 Lafayette Ambassador Bank 172,345 14.1 97,792 8.0 122,240 10.0 Tier I Capital (to Risk-Weighted Assets): Corporation $ 1,544,495 10.2 % $ 911,151 6.0 % N/A N/A Fulton Bank, N.A 1,000,603 11.2 536,051 6.0 $ 714,734 8.0 % Fulton Bank of New Jersey 336,319 11.4 177,518 6.0 236,691 8.0 The Columbia Bank 192,090 12.5 92,445 6.0 123,260 8.0 Lafayette Ambassador Bank 162,092 13.3 73,344 6.0 97,792 8.0 Common Equity Tier I Capital (to Risk-weighted Assets): Corporation $ 1,541,214 10.2 % $ 683,363 4.5 % N/A N/A Fulton Bank, N.A 956,603 10.7 402,038 4.5 $ 580,721 6.5 % Fulton Bank of New Jersey 336,319 11.4 133,139 4.5 192,311 6.5 The Columbia Bank 192,090 12.5 69,334 4.5 100,149 6.5 Lafayette Ambassador Bank 162,092 13.3 55,008 4.5 79,456 6.5 Tier I Capital (to Average Assets): Corporation $ 1,544,495 9.0 % $ 688,500 4.0 % N/A N/A Fulton Bank, N.A 1,000,603 10.2 391,783 4.0 $ 489,729 5.0 % Fulton Bank of New Jersey 336,319 9.5 141,257 4.0 176,572 5.0 The Columbia Bank 192,090 9.7 79,618 4.0 99,523 5.0 Lafayette Ambassador Bank 162,092 11.0 59,152 4.0 73,940 5.0 N/A – Not applicable as "well capitalized" applies to banks only. Dividend and Loan Limitations The dividends that may be paid by subsidiary banks to the Parent Company are subject to certain legal and regulatory limitations. Dividend limitations vary, depending on the subsidiary bank’s charter and primary regulator and whether or not it is a member of the Federal Reserve System. Generally, subsidiaries are prohibited from paying dividends when doing so would cause them to fall below the regulatory minimum capital levels. Additionally, limits may exist on paying dividends in excess of net income for specified periods. The total amount available for payment of dividends by subsidiary banks was approximately $233 million as of December 31, 2016 , based on the subsidiary banks maintaining enough capital to be considered well capitalized under the U.S. Basel III Capital Rules. Under current Federal Reserve regulations, the subsidiary banks are limited in the amount they may loan to their affiliates, including the Parent Company. Loans to a single affiliate may not exceed 10% , and the aggregate of loans to all affiliates may not exceed 20% of each bank subsidiary’s regulatory capital.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 12 – INCOME TAXES The components of the provision for income taxes are as follows: 2016 2015 2014 (in thousands) Current tax expense: Federal $ 33,872 $ 34,455 $ 32,957 State 1,698 2,042 1,126 35,570 36,497 34,083 Deferred tax expense: Federal 7,968 12,752 18,523 State 3,086 672 — 11,054 13,424 18,523 Income tax expense $ 46,624 $ 49,921 $ 52,606 The differences between the effective income tax rate and the federal statutory income tax rate are as follows: 2016 2015 2014 Statutory tax rate 35.0 % 35.0 % 35.0 % Tax credit investments (7.0 ) (5.2 ) (4.9 ) Tax-exempt income (6.5 ) (6.0 ) (5.4 ) State income taxes, net of federal benefit 1.2 1.9 1.2 Bank owned life insurance (0.6 ) (0.6 ) (0.5 ) Change in valuation allowance 0.3 (0.9 ) (0.8 ) Executive compensation 0.1 0.1 0.1 Other, net (0.1 ) 0.7 (0.3 ) Effective income tax rate 22.4 % 25.0 % 24.4 % The net deferred tax asset recorded by the Corporation is included in other assets and consists of the following tax effects of temporary differences as of December 31 : 2016 2015 (in thousands) Deferred tax assets: Allowance for credit losses $ 62,726 $ 62,846 Postretirement and defined benefit plans 12,659 13,070 Unrealized holding losses on securities available for sale 12,260 3,250 Deferred compensation 12,017 11,839 State loss carryforwards 9,820 11,170 Other accrued expenses 9,520 7,142 Other-than-temporary impairment of investments 5,187 5,501 Other 8,500 10,165 Total gross deferred tax assets 132,689 124,983 Deferred tax liabilities: Direct leasing 27,663 20,309 Mortgage servicing rights 13,369 14,582 Acquisition premiums/discounts 9,167 8,897 Premises and equipment 5,625 5,955 Intangible assets 1,810 1,614 Other 12,530 9,593 Total gross deferred tax liabilities 70,164 60,950 Net deferred tax asset, before valuation allowance 62,525 64,033 Valuation allowance (8,950 ) (8,359 ) Net deferred tax asset $ 53,575 $ 55,674 In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income and/or capital gain income during periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies, such as those that may be implemented to generate capital gains, in making this assessment. The valuation allowance relates to state deferred tax assets and net operating loss carryforwards for which realizability is uncertain. As of December 31, 2016 and 2015 , the Corporation had state net operating loss carryforwards of approximately $391 million and $424 million , respectively, which are available to offset future state taxable income, and expire at various dates through 2036 . The Corporation has $5.0 million of deferred tax assets resulting from unrealized other-than-temporary impairment losses on investment securities, which would be characterized as capital losses for tax purposes. If realized, the income tax benefits of these potential capital losses can only be recognized for tax purposes to the extent of capital gains generated during carryback and carryforward periods. Other deferred tax assets include $2.5 million related to realized capital losses on sales of investment securities that have not been deducted on tax returns as there were no capital gains available for offset in the current or carryback periods. These losses will begin to expire in 2018 . If sufficient capital gains are not realized during this period, some or all of this deferred tax asset may need to be written off through a charge to income tax expense. The Corporation currently believes that it has the ability to generate sufficient offsetting capital gains in future periods through the execution of certain tax planning strategies, which may include the sale and leaseback of some or all of its branch and office properties. As such, no valuation allowance for the deferred tax assets related to the realized or unrealized capital losses is considered to be necessary as of December 31, 2016 . Based on the level of historical taxable income and projections for future taxable income over the periods in which the deferred tax assets are deductible, management believes it is more likely than not that the Corporation will realize the benefits of its deferred tax assets, net of the valuation allowance, as of December 31, 2016 . Uncertain Tax Positions The following summarizes the changes in unrecognized tax benefits for the years ended December 31 : 2016 2015 2014 (in thousands) Balance at beginning of year $ 2,373 $ 1,944 $ 1,651 Prior period tax positions — — 188 Current period tax positions 456 492 269 Lapse of statute of limitations (391 ) (63 ) (164 ) Balance at end of year $ 2,438 $ 2,373 $ 1,944 As of December 31, 2016 , if recognized, all of the Corporation’s unrecognized tax benefits would impact the effective tax rate. Not included in the table above is $845,000 of federal income tax benefit on unrecognized state tax benefits which, if recognized, would also impact the effective tax rate. Interest accrued related to unrecognized tax benefits is recorded as a component of income tax expense. Penalties, if incurred, would also be recognized in income tax expense. The Corporation recognized approximately $43,000 and $46,000 in 2016 and 2015 , respectively, for interest and penalties in income tax expense related to unrecognized tax positions. As of December 31, 2016 and 2015 , total accrued interest and penalties related to unrecognized tax positions were approximately $574,000 and $531,000 , respectively. The Corporation and its subsidiaries file income tax returns in the federal and various state jurisdictions. In most cases, unrecognized tax benefits are related to tax years that remain subject to examination by the relevant taxing authorities. With few exceptions, the Corporation is no longer subject to federal, state and local examinations by tax authorities for years before 2013 .

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Employee Benefit Plans	NOTE 13 – EMPLOYEE BENEFIT PLANS The following summarizes the Corporation’s expense under its retirement plans for the years ended December 31 : 2016 2015 2014 (in thousands) 401(k) Retirement Plan $ 7,418 $ 6,423 $ 8,643 Pension Plan 4,310 4,102 1,514 $ 11,728 $ 10,525 $ 10,157 The 401(k) Retirement Plan is a defined contribution plan under which eligible employees may defer a portion of their pre-tax covered compensation on an annual basis, with employer matches of up to 5% of employee compensation. Employee and employer contributions under these features are 100% vested. Prior to January 1, 2015, this plan also included a profit sharing component whereby additional employer contributions not to exceed 5% of each eligible employee’s covered compensation, were provided for certain employees. Contributions to the Defined Benefit Pension Plan ("Pension Plan") are actuarially determined and funded annually, if necessary. The Corporation recognizes the funded status of its Pension Plan on the consolidated balance sheets and recognizes the changes in that funded status through other comprehensive income. The Pension Plan has been curtailed, with no additional benefits accruing to participants. Pension Plan The net periodic pension cost for the Pension Plan, as determined by consulting actuaries, consisted of the following components for the years ended December 31 : 2016 2015 2014 (in thousands) Service cost (1) $ 688 $ 579 $ 367 Interest cost 3,520 3,405 3,413 Expected return on assets (2,318 ) (3,009 ) (3,240 ) Net amortization and deferral 2,420 3,127 974 Net periodic pension cost $ 4,310 $ 4,102 $ 1,514 (1) The Pension Plan was curtailed effective January 1, 2008. Pension plan service cost for all years presented was related to administrative costs associated with the plan and not due to the accrual of additional participant benefits. The following table summarizes the changes in the projected benefit obligation and fair value of plan assets for the plan years ended December 31 : 2016 2015 (in thousands) Projected benefit obligation at beginning of year $ 84,736 $ 93,079 Service cost 688 579 Interest cost 3,520 3,405 Benefit payments (5,172 ) (3,904 ) Change in assumptions 1,635 (7,722 ) Experience gain (44 ) (701 ) Projected benefit obligation at end of year $ 85,363 $ 84,736 Fair value of plan assets at beginning of year $ 46,971 $ 51,730 Employer contributions (1) 5,169 — Actual return on plan assets 1,716 (855 ) Benefit payments (5,172 ) (3,904 ) Fair value of plan assets at end of year $ 48,684 $ 46,971 (1) The Corporation funds at least the minimum amount required by the funding requirements of federal law and regulations. The corporation contributed $5.2 million to the Pension Plan during 2016 . There were no contributions to the Pension Plan in 2015 . The following table presents the funded status of the Pension Plan, included in other liabilities on the consolidated balance sheets, as of December 31 : 2016 2015 (in thousands) Projected benefit obligation $ (85,363 ) $ (84,736 ) Fair value of plan assets 48,684 46,971 Funded status $ (36,679 ) $ (37,765 ) The following table summarizes the changes in the unrecognized net loss included as a component of accumulated other comprehensive loss: Unrecognized Net Loss Gross of tax Net of tax (in thousands) Balance as of December 31, 2014 $ 38,082 $ 24,754 Recognized as a component of 2015 periodic pension cost (3,127 ) (2,033 ) Unrecognized gains arising in 2015 (4,559 ) (2,963 ) Balance as of December 31, 2015 30,396 19,758 Recognized as a component of 2016 periodic pension cost (2,420 ) (1,573 ) Unrecognized losses arising in 2016 2,193 1,425 Balance as of December 31, 2016 $ 30,169 $ 19,610 The total amount of unrecognized net loss that will be amortized as a component of net periodic pension cost in 2017 is expected to be $2.7 million . The following rates were used to calculate net periodic pension cost and the present value of benefit obligations as of December 31 : 2016 2015 2014 Discount rate-projected benefit obligation 4.00 % 4.25 % 3.75 % Expected long-term rate of return on plan assets 5.00 % 6.00 % 6.00 % As of December 31, 2016 and 2015 , the discount rate used was determined using the Citigroup Average Life discount rate table, as adjusted based on the Pension Plan's expected benefit payments and rounded to the nearest 0.25% . The 5.00% long-term rate of return on plan assets used to calculate the net periodic pension cost was based on historical returns, adjusted for expectations of long-term asset returns based on the December 31, 2016 weighted average asset allocations. The expected long-term return is considered to be appropriate based on the asset mix and the historical returns realized. The following table presents a summary of the fair values of the Pension Plan’s assets as of December 31 : 2016 2015 Estimated % of Total Estimated % of Total (dollars in thousands) Equity mutual funds $ 12,689 $ 8,269 Equity common trust funds 7,936 6,350 Equity securities 20,625 42.4 % 14,619 31.1 % Cash and money market funds 7,149 8,196 Fixed income mutual funds 10,540 9,578 Corporate debt securities 3,252 3,749 U.S. Government agency securities 496 2,881 Fixed income securities and cash 21,437 44.0 % 24,404 52.0 % Other alternative investment funds 6,622 13.6 % 7,948 16.9 % $ 48,684 100.0 % $ 46,971 100.0 % Investment allocation decisions are made by a retirement plan committee. The goal of the investment allocation strategy is to match certain benefit obligations with maturities of fixed income securities. Pension Plan assets are invested with a balanced objective, with target asset allocations of approximately 50% in equities, 40% in fixed income securities and cash and 10% in alternative investments. Alternative investments may include managed futures, commodities, real estate investment trusts, master limited partnerships, and long-short strategies with traditional stocks and bonds. All alternative investments are in the form of mutual funds, not individual contracts, to enable daily liquidity. The fair values for all assets held by the Pension Plan, excluding equity common trust funds, are based on quoted prices for identical instruments and would be categorized as Level 1 assets under FASB ASC Topic 810. Equity common trust funds would be categorized as Level 2 assets under FASB ASC Topic 810. Estimated future benefit payments are as follows (in thousands): Year 2017 $ 3,409 2018 3,742 2019 3,831 2020 4,213 2021 4,410 2022 – 2026 24,219 $ 43,824 Postretirement Benefits The Corporation provides medical benefits and life insurance benefits under a postretirement benefits plan ("Postretirement Plan") to certain retired full-time employees who were employees of the Corporation prior to January 1, 1998 . Prior to February 1, 2014, certain full-time employees became eligible for these discretionary benefits if they reached retirement age while working for the Corporation. The Corporation recognizes the funded status of the postretirement plan on the consolidated balance sheets and recognizes the changes in that funded status through other comprehensive income. In 2015, the Corporation amended the postretirement plan to eliminate a death benefit provision and to fix the cost of health insurance premiums paid for by each participant. This amendment resulted in a $2.5 million decrease in the postretirement benefit obligation that will be amortized to income over the estimated average remaining life of plan participants, or approximately 14 years. In 2014, the Corporation amended the Postretirement Plan, making all active full-time employees ineligible for benefits under this plan. As a result of this amendment, the Corporation recorded a $1.5 million curtailment gain as a reduction to salaries and employee benefits expense in 2014. The curtailment gain resulted from the recognition of the remaining pre-curtailment prior service cost as of December 31, 2013. In addition, this amendment resulted in a $3.4 million decrease in the accumulated postretirement benefit obligation and a corresponding increase in unrecognized prior service cost credits. The components of the net (benefit) expense for postretirement benefits other than pensions are as follows: 2016 2015 2014 (in thousands) Service cost $ — $ — $ 15 Interest cost 85 206 206 Net amortization and deferral (551 ) (258 ) (347 ) Net postretirement benefit cost $ (466 ) $ (52 ) $ (126 ) The following table summarizes the changes in the accumulated postretirement benefit obligation and fair value of plan assets for the years ended December 31 : 2016 2015 (in thousands) Accumulated postretirement benefit obligation at beginning of year $ 2,875 $ 5,552 Interest cost 85 206 Benefit payments (282 ) (251 ) Experience gain (732 ) 189 Change in assumptions (20 ) (2,821 ) Accumulated postretirement benefit obligation at end of year $ 1,926 $ 2,875 Fair value of plan assets at beginning of year $ 15 $ 8 Employer contributions 270 258 Benefit payments (282 ) (251 ) Fair value of plan assets at end of year $ 3 $ 15 The following table presents the funded status of the Postretirement Plan, included in other liabilities on the consolidated balance sheets as of December 31 : 2016 2015 (in thousands) Accumulated postretirement benefit obligation $ (1,926 ) $ (2,875 ) Fair value of plan assets 3 15 Funded status $ (1,923 ) $ (2,860 ) The following table summarizes the changes in items recognized as a component of accumulated other comprehensive loss: Gross of tax Unrecognized Unrecognized Total Net of tax (in thousands) Balance as of December 31, 2014 $ (3,123 ) $ (336 ) $ (3,459 ) $ (2,249 ) Recognized as a component of 2015 postretirement benefit cost 258 — 258 168 Unrecognized gains arising in 2015 (2,469 ) (172 ) (2,641 ) (1,717 ) Balance as of December 31, 2015 (5,334 ) (508 ) (5,842 ) (3,798 ) Recognized as a component of 2016 postretirement benefit cost 465 86 551 358 Unrecognized gains arising in 2016 — (761 ) (761 ) (495 ) Balance as of December 31, 2016 $ (4,869 ) $ (1,183 ) $ (6,052 ) $ (3,935 ) The following rates were used to calculate net periodic postretirement benefit cost and the present value of benefit obligations as of December 31 : 2016 2015 2014 Discount rate-projected benefit obligation 4.25 % 4.25 % 3.75 % Expected long-term rate of return on plan assets 3.00 % 3.00 % 3.00 % As of December 31, 2016 and 2015 , the discount rate used to calculate the accumulated postretirement benefit obligation was determined using the Citigroup Average Life discount rate table, as adjusted based on the Postretirement Plan's expected benefit payments and rounded to the nearest 0.25% . Estimated future benefit payments under the Postretirement Plan are as follows (in thousands): Year 2017 $ 237 2018 222 2019 207 2020 193 2021 178 2022 – 2026 695 $ 1,732

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2016
Accumulated Other Comprehensive Income [Abstract]
Stockholders' Equity	NOTE 14 – SHAREHOLDERS’ EQUITY Accumulated Other Comprehensive Income (Loss) The following table presents the components of other comprehensive income (loss) for the years ended December 31 : Before-Tax Amount Tax Effect Net of Tax Amount (in thousands) 2016: Unrealized loss on securities $ (22,907 ) $ 8,016 $ (14,891 ) Reclassification adjustment for securities gains included in net income (1) (2,550 ) 893 (1,657 ) Non-credit related unrealized loss on other-than-temporarily impaired debt securities (285 ) 100 (185 ) Amortization of unrealized loss on derivative financial instruments (2) 25 (9 ) 16 Unrecognized pension and postretirement cost (1,432 ) 501 (931 ) Amortization of net unrecognized pension and postretirement items (3) 1,869 (653 ) 1,216 Total Other Comprehensive Loss $ (25,280 ) $ 8,848 $ (16,432 ) 2015: Unrealized loss on securities $ (11,872 ) $ 4,155 $ (7,717 ) Reclassification adjustment for securities gains included in net income (1) (9,066 ) 3,174 (5,892 ) Reclassification adjustment for loss on derivative financial instruments included in net income (2) 3,778 (1,322 ) 2,456 Non-credit related unrealized gains on other-than-temporarily impaired debt securities 368 (129 ) 239 Amortization of unrealized loss on derivative financial instruments (2) 115 (40 ) 75 Unrecognized pension and postretirement cost 7,200 (2,520 ) 4,680 Amortization of net unrecognized pension and postretirement items (3) 2,869 (1,005 ) 1,864 Total Other Comprehensive Loss $ (6,608 ) $ 2,313 $ (4,295 ) 2014: Unrealized gain on securities $ 51,901 $ (18,167 ) $ 33,734 Reclassification adjustment for securities gains included in net income (1) (2,041 ) 714 (1,327 ) Non-credit related unrealized gains on other-than-temporarily impaired debt securities 1,200 (420 ) 780 Amortization of unrealized loss on derivative financial instruments (2) 209 (73 ) 136 Reclass adjustment for postretirement plan gain included in net income (3) (1,452 ) 508 (944 ) Unrecognized pension and postretirement income (20,258 ) 7,090 (13,168 ) Amortization of net unrecognized pension and postretirement items (3) 627 (219 ) 408 Total Other Comprehensive Income $ 30,186 $ (10,567 ) $ 19,619 (1) Amounts reclassified out of accumulated other comprehensive loss. Before-tax amounts included in "Investment securities gains, net" on the consolidated statements of income. See "Note 3 - Investment Securities," for additional details. (2) Amounts reclassified out of accumulated other comprehensive loss. Before-tax amounts included in "Interest Expense" on the consolidated statements of income. (3) Amounts reclassified out of accumulated other comprehensive loss. Before-tax amounts included in "Salaries and employee benefits" on the consolidated statements of income. See "Note 13 - Employee Benefit Plans," for additional details. The following table presents changes in each component of accumulated other comprehensive income (loss), net of tax, for the years ended December 31 : Unrealized Gain (Losses) on Investment Securities Not Other-Than-Temporarily Impaired Unrealized Non-Credit Gains (Losses) on Other-Than-Temporarily Impaired Debt Securities Unrealized Effective Portions of Losses on Forward-Starting Interest Rate Swaps Unrecognized Pension and Postretirement Plan Income (Cost) Total (in thousands) Balance as of December 31, 2013 $ (27,510 ) $ 1,652 $ (2,682 ) $ (8,801 ) $ (37,341 ) Other comprehensive income (loss) before reclassifications 33,734 780 — (14,112 ) 20,402 Amounts reclassified from accumulated other comprehensive income (loss) (244 ) (1,083 ) 136 408 (783 ) Balance as of December 31, 2014 5,980 1,349 (2,546 ) (22,505 ) (17,722 ) Other comprehensive income (loss) before reclassifications (7,717 ) 239 — 4,680 (2,798 ) Amounts reclassified from accumulated other comprehensive income (loss) (4,762 ) (1,130 ) 75 1,864 (3,953 ) Reclassification adjustment for loss on derivative financial instruments — — 2,456 — 2,456 Balance as of December 31, 2015 (6,499 ) 458 (15 ) (15,961 ) (22,017 ) Other comprehensive income (loss) before reclassifications (14,891 ) (185 ) — (931 ) (16,007 ) Amounts reclassified from accumulated other comprehensive income (loss) (1,657 ) — 15 1,217 (425 ) Balance as of December 31, 2016 $ (23,047 ) $ 273 $ — $ (15,675 ) $ (38,449 ) Common Stock Repurchase Plans In November 2016 , the Corporation's board of directors approved an extension to a share repurchase program pursuant to which the Corporation is authorized to repurchase up to $50.0 million of its outstanding shares of common stock, or approximately 2.3% of its outstanding shares, through December 31, 2017 . Repurchased shares will be added to treasury stock, at cost. As permitted by securities laws and other legal requirements, and subject to market conditions and other factors, purchases may be made from time to time in open market or privately negotiated transactions, including, without limitation, through accelerated share repurchase transactions. The share repurchase program may be discontinued at any time. During 2016, 1.5 million shares were repurchased under this program for a total cost of $18.5 million , or $12.48 per share. As of December 31, 2016, up to an additional $31.5 million of the Corporation's common stock may be repurchased under this program through December 31, 2017. In April 2015 , the Corporation announced that its board of directors had approved a share repurchase program pursuant to which the Corporation was authorized to repurchase up to $50.0 million of its outstanding shares of common stock, or approximately 2.3% of its outstanding shares, through December 31, 2015 . During 2015, the Corporation repurchased approximately 4.0 million shares under this program for a total cost of $50.0 million , or $12.57 per share, completing this program. In 2014, the Corporation repurchased outstanding shares of its common stock under various repurchase programs approved by its board of directors. A total of 8.0 million shares were repurchased for $95.2 million , or an average cost of $11.91 per share. In addition to the repurchases discussed above, in November 2014 , the Corporation entered into an accelerated share repurchase agreement ("ASR") with a third party to repurchase $100 million of shares of its common stock. Under the terms of the ASR, the Corporation paid $100 million to the third party in November 2014 and received an initial delivery of 6.5 million shares, representing 80% of the shares expected to be delivered under the ASR, based on the closing price for the Corporation’s shares on November 13, 2014 . In April 2015, the third party delivered an additional 1.8 million shares of common stock pursuant to the terms of the ASR, thereby completing the $100.0 million ASR. The Corporation repurchased a total of 8.3 million shares of common stock under the ASR at an average price of $12.05 per share.

Stock-Based Compensation Plans

Stock-Based Compensation Plans	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based compensation plans	NOTE 15 – STOCK-BASED COMPENSATION PLANS The following table presents compensation expense and related tax benefits for all equity awards recognized in the consolidated statements of income: 2016 2015 2014 (in thousands) Compensation expense $ 6,556 $ 5,938 $ 5,865 Tax benefit (2,679 ) (2,011 ) (1,608 ) Stock-based compensation, net of tax $ 3,877 $ 3,927 $ 4,257 The tax benefits as a percentage of compensation expense, as shown in the preceding table, were 40.9% , 33.9% and 27.4% in 2016 , 2015 and 2014 , respectively. These percentages differ from the Corporation’s 35% statutory federal tax rate. Tax benefits are only recognized over the vesting period for awards that ordinarily will generate a tax deduction when exercised, in the case of non-qualified stock options, or upon vesting, in the case of restricted stock, RSUs and PSUs. Tax benefits less than the 35% statutory federal tax rate resulted from incentive stock options, for which a tax benefit is not recognized during the vesting period. Tax benefits in excess of the 35% statutory federal tax rate resulted from incentive stock option exercises that triggered a tax deduction when they were exercised. The following table presents compensation expense and related tax benefits for restricted stock awards, RSUs and PSUs recognized in the consolidated statements of income, and included as a component of total stock-based compensation in the preceding table: 2016 2015 2014 (in thousands) Compensation expense $ 6,165 $ 4,646 $ 4,345 Tax benefit (2,158 ) (1,626 ) (1,510 ) Restricted stock compensation, net of tax $ 4,007 $ 3,020 $ 2,835 The following table provides information about stock option activity for the year ended December 31, 2016 : Stock Weighted Weighted Aggregate Outstanding as of December 31, 2015 2,980,087 $ 12.31 Exercised (920,924 ) 11.70 Forfeited (263,685 ) 14.33 Expired (465,295 ) 16.19 Outstanding as of December 31, 2016 1,330,183 $ 10.98 4.7 years $ 10.4 Exercisable as of December 31, 2016 1,247,736 $ 10.87 4.5 years $ 9.9 The following table provides information about nonvested stock options, restricted stock, RSUs and PSUs granted under the Employee Equity Plan and Directors' Plan for the year ended December 31, 2016 : Nonvested Stock Options Restricted Stock/RSUs/PSUs Options Weighted Shares Weighted Nonvested as of December 31, 2015 349,852 $ 2.82 1,388,389 $ 12.16 Granted — — 447,130 13.86 Vested (247,727 ) 2.71 (292,583 ) 11.73 Forfeited (19,678 ) 2.84 (17,221 ) 12.20 Nonvested as of December 31, 2016 82,447 $ 3.14 1,525,715 $ 12.74 As of December 31, 2016 , there was $8.4 million of total unrecognized compensation cost related to nonvested stock options, restricted stock, RSUs and PSUs that will be recognized as compensation expense over a weighted average period of two years. As of December 31, 2016 , the Employee Equity Plan had 11.4 million shares reserved for future grants through 2023 , and the Directors’ Plan had 371,000 shares reserved for future grants through 2021 . The following table presents information about stock options exercised: 2016 2015 2014 (dollars in thousands) Number of options exercised 920,924 490,151 215,047 Total intrinsic value of options exercised $ 4,619 $ 1,442 $ 568 Cash received from options exercised $ 10,240 $ 4,936 $ 2,068 Tax deduction realized from options exercised $ 4,328 $ 1,389 $ 530 Upon exercise, the Corporation issues shares from its authorized, but unissued, common stock to satisfy the options. The fair value of stock option awards under the Employee Equity Plan was estimated on the grant date using the Black-Scholes valuation methodology, which is dependent upon certain assumptions, as summarized in the table below. No options were granted in 2016 and 2015 under the Employee Equity Plan. 2014 Risk-free interest rate 2.44 % Volatility of Corporation’s stock 28.05 % Expected dividend yield 2.36 % Expected life of options 7 Years The expected life of the options was estimated based on historical activity. Volatility of the Corporation’s stock was based on historical volatility for the period commensurate with the expected life of the options. The risk-free interest rate is the zero-coupon U.S. Treasury rate commensurate with the expected life of the options on the date of the grant. Based on the assumptions above, the Corporation calculated an estimated fair value per option of $3.14 for options granted in 2014 . The Corporation granted 288,626 options in 2014 , including 50,000 non-qualified stock options. The fair value of certain PSUs with market-based performance conditions granted in 2016 under the Employee Equity Plan was estimated on the grant date using the Monte Carlo valuation methodology performed by a third-party valuation expert. This valuation is dependent upon certain assumptions, as summarized in the following table: 2016 2015 2014 Risk-free interest rate 0.92 % 0.86 % 0.91 % Volatility of Corporation’s stock 20.75 % 20.08 % 29.63 % Expected life of PSUs 3 Years 3 Years 3 Years The expected life of the PSUs with fair values measured using the Monte Carlo valuation methodology was based on the defined performance period of three years . Volatility of the Corporation’s stock was based on historical volatility for the period commensurate with the expected life of the PSUs. The risk-free interest rate is the zero-coupon U.S. Treasury rate commensurate with the expected life of the PSUs on the date of the grant. Based on the assumptions above, the Corporation calculated an estimated fair value per PSU granted in 2016 of $11.23 . Under the ESPP, eligible employees can purchase stock of the Corporation at 85% of the fair market value of the stock on the date of purchase. The ESPP is considered to be a compensatory plan and, as such, compensation expense is recognized for the 15% discount on shares purchased. The following table summarizes activity under the ESPP: 2016 2015 2014 ESPP shares purchased 109,665 121,890 132,640 Average purchase price per share (85% of market value) $ 12.37 $ 10.86 $ 10.31 Compensation expense recognized (in thousands) $ 240 $ 234 $ 241

Leases

Leases	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Leases	NOTE 16 – LEASES Certain branch offices and equipment are leased under agreements that expire at varying dates through 2036 . Most leases contain renewal provisions at the Corporation’s option. Total rental expense was approximately $18.4 million in 2016 , $18.1 million in 2015 and $18.1 million in 2014 . Future minimum payments as of December 31, 2016 under non-cancelable operating leases with initial terms exceeding one year are as follows (in thousands): Year 2017 $ 16,330 2018 14,206 2019 12,286 2020 11,040 2021 9,396 Thereafter 44,395 $ 107,653

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 17 – COMMITMENTS AND CONTINGENCIES Commitments The Corporation 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. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments is expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Corporation evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral, if any, obtained upon extension of credit is based on management’s credit evaluation of the customer. Collateral held varies but may include accounts receivable, inventory, property, equipment and income producing commercial properties. The Corporation records a reserve for unfunded commitments, included in other liabilities on the consolidated balance sheets, which represents management’s estimate of losses inherent in these commitments. See "Note 4 - Loans and Allowance for Credit Losses," for additional information. Standby letters of credit are conditional commitments issued to guarantee the financial or performance obligation of a customer to a third party. Commercial letters of credit are conditional commitments issued to facilitate foreign and domestic trade transactions for customers. The credit risk involved in issuing letters of credit is similar to that involved in extending loan facilities. These obligations are underwritten consistently with commercial lending standards. The maximum exposure to loss for standby and commercial letters of credit is equal to the contractual (or notional) amount of the instruments. The following table presents commitments to extend credit and letters of credit: 2016 2015 (in thousands) Commercial and other $ 3,673,815 $ 3,518,960 Home equity 1,368,465 1,300,062 Commercial mortgage and construction 1,033,287 965,116 Total commitments to extend credit $ 6,075,567 $ 5,784,138 Standby letters of credit $ 356,359 $ 374,729 Commercial letters of credit 38,901 39,529 Total letters of credit $ 395,260 $ 414,258 Residential Lending Residential mortgages are originated and sold by the Corporation and consist primarily of conforming, prime loans sold to government sponsored agencies such as the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac). The Corporation also sells certain residential mortgages to non-government sponsored agency investors. The Corporation provides customary representations and warranties to government sponsored agencies and investors that specify, among other things, that the loans have been underwritten to the standards established by the government sponsored agency or investor. The Corporation may be required to repurchase a loan or reimburse the government sponsored agency or investor for a credit loss incurred on a loan, if it is determined that the representations and warranties have not been met. Such repurchases or reimbursements generally result from an underwriting or documentation deficiency. As of December 31, 2016 and 2015 , total outstanding repurchase requests totaled approximately $543,000 . From 2000 to 2011 , the Corporation sold loans to the Federal Home Loan Bank of Pittsburgh under its Mortgage Partnership Finance Program ("MPF Program"). No loans were sold under this program since 2011. The Corporation provided a "credit enhancement" for residential mortgage loans sold under the MPF Program whereby it would assume credit losses in excess of a defined "First Loss Account," or "FLA" balance, up to specified amounts. The FLA is funded by the Federal Home Loan Bank of Pittsburgh based on a percentage of the outstanding principal balance of loans sold. As of December 31, 2016 , the unpaid principal balance of loans sold under the MPF Program was approximately $104 million . As of December 31, 2016 and 2015 , the reserves for estimated credit losses related to loans sold under the MPF Program were $1.7 million and $1.8 million , respectively. Required reserves are calculated based on delinquency status and estimated loss rates established through the Corporation's existing allowance for credit loss methodology for residential mortgage loans. As of December 31, 2016 and 2015 , the reserve for losses on residential mortgage loans sold was $2.5 million and $2.6 million , respectively, including both reserves for credit losses under the MPF Program and reserves for representation and warranty exposures. Management believes that the reserves recorded as of December 31, 2016 are adequate. However, declines in collateral values, the identification of additional loans to be repurchased, or a deterioration in the credit quality of loans sold under the MPF Program could necessitate additional reserves, established through charges to earnings, in the future. Legal Proceedings The Corporation and its subsidiaries are involved in various legal proceedings in the ordinary course of business of the Corporation. The Corporation periodically evaluates the possible impact of pending litigation matters based on, among other factors, the advice of counsel, available insurance coverage and recorded liabilities and reserves for probable legal liabilities and costs. In addition, from time to time, the Corporation is the subject of investigations or other forms of regulatory or governmental inquiry covering a range of possible issues and, in some cases, these may be part of similar reviews of the specified activities of other industry participants. These inquiries could lead to administrative, civil or criminal proceedings, and could possibly result in fines, penalties, restitution or the need to alter the Corporation’s business practices, and cause the Corporation to incur additional costs. The Corporation’s practice is to cooperate fully with regulatory and governmental investigations. As of the date of this report, the Corporation believes that any liabilities, individually or in the aggregate, which may result from the final outcomes of pending proceedings will not have a material adverse effect on the financial condition of the Corporation. However, legal proceedings are often unpredictable, and it is possible that the ultimate resolution of any such matters, if unfavorable, may be material to the Corporation’s results of operations for any particular period, depending, in part, upon the size of the loss or liability imposed and the operating results for the applicable period. BSA/AML Enforcement Orders The Corporation and each of its bank subsidiaries are subject to regulatory enforcement orders issued during 2014 and 2015 by their respective federal and state bank regulatory agencies relating to identified deficiencies in the Corporation’s centralized Bank Secrecy Act and anti-money laundering compliance program (the "BSA/AML Compliance Program"), which was designed to comply with the requirements of the Bank Secrecy Act, the USA Patriot Act of 2001 and related anti-money laundering regulations (collectively, the "BSA/AML Requirements"). The regulatory enforcement orders, which are in the form of consent orders or orders to cease and desist issued upon consent ("Consent Orders"), generally require, among other things, that the Corporation and its bank subsidiaries undertake a number of required actions to strengthen and enhance the BSA/AML Compliance Program, and, in some cases, conduct retrospective reviews of past account activity and transactions, as well as certain reports filed in accordance with the BSA/AML Requirements, to determine whether suspicious activity and certain transactions in currency were properly identified and reported in accordance with the BSA/AML Requirements. In addition to requiring strengthening and enhancement of the BSA/AML Compliance Program, while the Consent Orders remain in effect, the Corporation is subject to certain restrictions on expansion activities of the Corporation and its bank subsidiaries. Further, any failure to comply with the requirements of any of the Consent Orders involving the Corporation or its bank subsidiaries could result in further enforcement actions, the imposition of material restrictions on the activities of the Corporation or its bank subsidiaries, or the assessment of fines or penalties. Fair Lending Investigation During the second quarter of 2015, Fulton Bank, N.A., the Corporation’s largest bank subsidiary, received a letter from the U.S. Department of Justice (the "Department") indicating that the Department had initiated an investigation regarding potential violations of fair lending laws (specifically, the Equal Credit Opportunity Act and the Fair Housing Act) by Fulton Bank, N.A. in certain geographies. Fulton Bank, N.A. has been and is cooperating with the Department and responding to the Department’s requests for information. During the third quarter of 2016, the Department informed the Corporation, Fulton Bank, N.A., and three of the Corporation’s other bank subsidiaries, Fulton Bank of New Jersey, The Columbia Bank and Lafayette Ambassador Bank, that the Department was expanding its investigation of potential lending discrimination on the basis of race and national origin to encompass additional geographies that were not included in the initial letter from the Department. In addition to requesting information concerning the lending activities of these bank subsidiaries, the Department also requested information concerning the Corporation and the residential mortgage lending activities conducted under the Fulton Mortgage Company brand, the trade name used by all of the Corporation’s bank subsidiaries for residential mortgage lending. The investigation relates to lending activities during the period January 1, 2009 to the present. The Corporation and the identified bank subsidiaries are cooperating with the Department and responding to the Department’s requests for information. The Corporation and its bank subsidiaries are not able at this time to determine the terms on which this investigation will be resolved or the timing of such resolution, or to reliably estimate the amounts of any settlement, fines or other penalties or the cost of any other remedial actions, if enforcement action is taken. In addition, should the investigation result in an enforcement action against the Corporation or its bank subsidiaries, or a settlement with the Department, the ability of the Corporation and its bank subsidiaries to engage in certain expansion or other activities may be restricted. Agostino, et al. Litigation Fulton Bank, N.A. (the "Bank"), the Corporation’s largest bank subsidiary, and two unrelated, third-party defendants, Ameriprise Financial Services, Inc. (“Ameriprise”) and Riverview Bank (“Riverview”), have been named as defendants in a lawsuit brought on behalf of a group of 67 plaintiffs filed on March 31, 2016, in the Court of Common Pleas for Dauphin County, Pennsylvania (Agostino, et al. v. Ameriprise Financial Services, Inc., et al., No. 2016-CV-2048-CV). The plaintiffs in this action, who are individuals, trustees of certain irrevocable trusts, or the executors of the estates of deceased individuals, were clients of Jeffrey M. Mottern, a now-deceased attorney, who is alleged to have operated a fraud scheme over a period of years through the sale of fictitious high-yield investments or by otherwise misappropriating funds entrusted to Mr. Mottern. Mr. Mottern is alleged to have used the proceeds of these activities to engage in speculative securities trading through defendant Ameriprise, which caused significant losses, and for Mr. Mottern’s personal expenses. The allegations against the Bank relate to a commercial checking account at the Bank maintained by Mr. Mottern in connection with Mr. Mottern’s law practice. The lawsuit alleges that the Bank is liable to the plaintiffs for failing to properly monitor Mr. Mottern’s checking account and detect Mr. Mottern’s fraudulent activity, and specifically alleges that the Bank aided and abetted Mr. Mottern’s: (1) fraud; (2) breach of fiduciary duty; (3) violations of the Pennsylvania Unfair Trade Practices and Consumer Protection Law; and (4) conversion. Similar claims have been asserted against Ameriprise and Riverview, which allegedly maintained a personal brokerage account and a trust account for client or other third-party funds, respectively, for Mr. Mottern. The lawsuit seeks damages from the defendants, including the Bank, alleged to be in excess of $11.3 million , treble damages and attorneys’ fees with respect to alleged violations of the Pennsylvania Unfair Trade Practices and Consumer Protection Law, punitive damages, plus interest and costs. On April 29, 2016, the Bank filed a Notice of Removal to remove this lawsuit to the United States District Court for the Middle District of Pennsylvania. On May 31, 2016, the plaintiffs filed a motion to remand the lawsuit to the Court of Common Pleas for Dauphin County, Pennsylvania. On October 24, 2016, the District Court granted the plaintiffs' motion and the lawsuit was remanded back to the Court of Common Pleas for Dauphin County. All defendants subsequently filed preliminary objections to the Complaint, including objections that, if granted, would result in dismissal of the case.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	NOTE 18 – FAIR VALUE MEASUREMENTS All assets and liabilities measured at fair value on both a recurring and nonrecurring basis have been categorized based on the method of their fair value determination. The following tables summarizes the Corporation’s assets and liabilities measured at fair value on a recurring basis and reported on the consolidated balance sheets as of December 31: 2016 Level 1 Level 2 Level 3 Total (in thousands) Mortgage loans held for sale $ — $ 28,697 $ — $ 28,697 Available for sale investment securities: Equity securities 24,526 — — 24,526 U.S. Government sponsored agency securities — 134 — 134 State and municipal securities — 391,641 — 391,641 Corporate debt securities — 106,537 2,872 109,409 Collateralized mortgage obligations — 593,860 — 593,860 Mortgage-backed securities — 1,342,401 — 1,342,401 Auction rate securities — — 97,256 97,256 Total available for sale investment securities 24,526 2,434,573 100,128 2,559,227 Other assets 17,111 44,481 — 61,592 Total assets $ 41,637 $ 2,507,751 $ 100,128 $ 2,649,516 Other liabilities $ 17,032 $ 41,734 $ — $ 58,766 2015 Level 1 Level 2 Level 3 Total (in thousands) Mortgage loans held for sale $ — $ 16,886 $ — $ 16,886 Available for sale investment securities: Equity securities 21,514 — — 21,514 U.S. Government sponsored agency securities — 25,136 — 25,136 State and municipal securities — 262,765 — 262,765 Corporate debt securities — 93,619 3,336 96,955 Collateralized mortgage obligations — 821,509 — 821,509 Mortgage-backed securities — 1,158,835 — 1,158,835 Auction rate securities — — 98,059 98,059 Total available for sale investment securities 21,514 2,361,864 101,395 2,484,773 Other assets 16,129 34,465 — 50,594 Total assets $ 37,643 $ 2,413,215 $ 101,395 $ 2,552,253 Other liabilities $ 15,914 $ 33,010 $ — $ 48,924 The valuation techniques used to measure fair value for the items in the table above are as follows: • Mortgage loans held for sale – This category consists of mortgage loans held for sale that the Corporation has elected to measure at fair value. Fair values as of December 31, 2016 and 2015 were measured as the price that secondary market investors were offering for loans with similar characteristics. See "Note 1 - Summary of Significant Accounting Policies" for details related to the Corporation’s election to measure assets and liabilities at fair value. • Available for sale investment securities – Included within this asset category are both equity and debt securities. Level 2 available for sale debt securities are valued by a third-party pricing service commonly used in the banking industry. The pricing service uses pricing models that vary based on asset class and incorporate available market information, including quoted prices of investment securities with similar characteristics. Because many fixed income securities do not trade on a daily basis, pricing models use available information, as applicable, through processes such as benchmark yield curves, benchmarking of like securities, sector groupings, and matrix pricing. Standard market inputs include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data, including market research publications. For certain security types, additional inputs may be used, or some of the standard market inputs may not be applicable. Management tests the values provided by the pricing service by obtaining securities prices from an alternative third-party source and comparing the results. This test is done for approximately 80% of the securities valued by the pricing service. Generally, differences by security in excess of 5% are researched to reconcile the difference. • Equity securities – Equity securities consist of stocks of financial institutions ( $23.5 million at December 31, 2016 and $20.6 million at December 31, 2015 ) and other equity investments ( $1.0 million at December 31, 2016 and $914,000 at December 31, 2015 ). These Level 1 investments are measured at fair value based on quoted prices for identical securities in active markets. • U.S. Government securities/U.S. Government sponsored agency securities/State and municipal securities/Collateralized mortgage obligations/Mortgage-backed securities – These debt securities are classified as Level 2 investments. Fair values are determined by a third-party pricing service, as detailed above. • Corporate debt securities – This category consists of subordinated and senior debt issued by financial institutions ( $65.2 million at December 31, 2016 and $53.1 million at December 31, 2015 ), single-issuer trust preferred securities issued by financial institutions ( $39.8 million at December 31, 2016 and $39.1 million at December 31, 2015 ), pooled trust preferred securities issued by financial institutions ( $422,000 at December 31, 2016 and $706,000 at December 31, 2015 ) and other corporate debt issued by non-financial institutions ( $4.0 million at December 31, 2016 and 2015 ). Level 2 investments include subordinated debt, other corporate debt issued by non-financial institutions and $37.3 million and $36.5 million of single-issuer trust preferred securities held at December 31, 2016 and 2015 , respectively. The fair values for these corporate debt securities are determined by a third-party pricing service, as detailed above. Level 3 investments include the Corporation's investments in pooled trust preferred securities ( $422,000 at December 31, 2016 and $706,000 at December 31, 2015 ) and certain single-issuer trust preferred securities ( $2.5 million at December 31, 2016 and $2.6 million at December 31, 2015 ). The fair values of these securities were determined based on quotes provided by third-party brokers who determined fair values based predominantly on internal valuation models which were not indicative prices or binding offers. The Corporation’s third-party pricing service cannot derive fair values for these securities primarily due to inactive markets for similar investments. Level 3 values are tested by management primarily through trend analysis, by comparing current values to those reported at the end of the preceding calendar quarter, and determining if they are reasonable based on price and spread movements for this asset class. • Auction rate securities – Due to their illiquidity, ARCs are classified as Level 3 investments and are valued through the use of an expected cash flows model prepared by a third-party valuation expert. The assumptions used in preparing the expected cash flows model include estimates for coupon rates, time to maturity and market rates of return. The most significant unobservable input to the expected cash flows model is an assumed return to market liquidity sometime within the next five years. If the assumed return to market liquidity was lengthened beyond the next five years, this would result in a decrease in the fair value of these ARCs. The Corporation believes that the trusts underlying the ARCs will self-liquidate as student loans are repaid. Level 3 values are tested by management through the performance of a trend analysis of the market price and discount rate. Changes in the price and discount rates are compared to changes in market data, including bond ratings, parity ratios, balances and delinquency levels. • Other assets – Included within this category are the following: • Level 1 assets, consisting of mutual funds that are held in trust for employee deferred compensation plans ( $16.4 million at December 31, 2016 and $15.6 million at December 31, 2015 ) and the fair value of foreign currency exchange contracts ( $745,000 at December 31, 2016 and $542,000 at December 31, 2015 ). The mutual funds and foreign exchange prices used to measure these items at fair value are based on quoted prices for identical instruments in active markets. • Level 2 assets, representing the fair value of mortgage banking derivatives in the form of interest rate locks and forward commitments with secondary market investors ( $3.1 million at December 31, 2016 and $1.5 million at December 31, 2015 ) and the fair value of interest rate swaps ( $41.4 million at December 31, 2016 and $33.0 million at December 31, 2015 ). The fair values of the interest rate locks, forward commitments and interest rate swaps represent the amounts that would be required to settle the derivative financial instruments at the balance sheet date. See "Note 10 - Derivative Financial Instruments," for additional information. • Other liabilities – Included within this category are the following: • Level 1 employee deferred compensation liabilities which represent amounts due to employees under deferred compensation plans ( $16.4 million at December 31, 2016 and $15.6 million at December 31, 2015 ) and the fair value of foreign currency exchange contracts ( $668,000 at December 31, 2016 and $331,000 at December 31, 2015 ). The fair values of these liabilities are determined in the same manner as the related assets, as described under the heading "Other assets," above. • Level 2 liabilities, representing the fair value of mortgage banking derivatives in the form of interest rate locks and forward commitments with secondary market investors ( $339,000 at December 31, 2016 and $40,000 at December 31, 2015 ) and the fair value of interest rate swaps ( $41.4 million at December 31, 2016 and $33.0 million at December 31, 2015 ). The fair values of these liabilities are determined in the same manner as the related assets, which are described under the heading "Other assets" above. The following table presents the changes in available for sale investment securities measured at fair value on a recurring basis using unobservable inputs (Level 3) for the years ended December 31 : Pooled Trust Single-issuer ARCs (in thousands) Balance as of December 31, 2014 $ 4,088 $ 3,820 $ 100,941 Unrealized adjustments to fair value (1) 366 (230 ) (903 ) Sales (3,633 ) — — Settlements - calls (117 ) (970 ) (2,446 ) Discount accretion (2) 2 10 467 Balance as of December 31, 2015 706 2,630 98,059 Unrealized adjustments to fair value (1) (286 ) (190 ) (1,246 ) Discount accretion (2) 2 10 443 Balance as of December 31, 2016 $ 422 $ 2,450 $ 97,256 (1) Pooled trust preferred securities, single-issuer trust preferred securities and ARCs are classified as available for sale investment securities; as such, the unrealized adjustment to fair value was recorded as an unrealized holding gain (loss) and included as a component of available for sale investment securities on the consolidated balance sheets. (2) Included as a component of net interest income on the consolidated statements of income. Certain financial assets are not measured at fair value on an ongoing basis but are subject to fair value measurement in certain circumstances, such as upon their acquisition or when there is evidence of impairment. The following table presents the Corporation's financial assets measured at fair value on a nonrecurring basis and reported on the consolidated balance sheets at December 31 : 2016 Level 1 Level 2 Level 3 Total (in thousands) Net loans $ — $ — $ 132,576 $ 132,576 Other financial assets — — 50,347 50,347 Total assets $ — $ — $ 182,923 $ 182,923 2015 Level 1 Level 2 Level 3 Total (in thousands) Net loans $ — $ — $ 138,491 $ 138,491 Other financial assets — — 52,043 52,043 Total assets $ — $ — $ 190,534 $ 190,534 The valuation techniques used to measure fair value for the items in the table above are as follows: • Net loans – This category consists of loans that were evaluated for impairment under FASB ASC Section 310-10-35 and have been classified as Level 3 assets. The amount shown is the balance of impaired loans, net of the related allowance for loan losses. See "Note 4 - Loans and Allowance for Credit Losses," for additional details. • Other financial assets – This category includes OREO ( $12.8 million at December 31, 2016 and $11.1 million at December 31, 2015 ) and MSRs ( $37.5 million at December 31, 2016 and $40.9 million at December 31, 2015 ), both classified as Level 3 assets. Fair values for OREO were based on estimated selling prices less estimated selling costs for similar assets in active markets. MSRs are initially recorded at fair value upon the sale of residential mortgage loans to secondary market investors. MSRs are amortized as a reduction to servicing income over the estimated lives of the underlying loans. MSRs are stratified and evaluated for impairment by comparing each stratum's carrying amount to its estimated fair value. Fair values are determined at the end of each quarter through a discounted cash flows valuation, prepared by a third-party valuation expert. Significant inputs to the valuation include expected net servicing income, the discount rate and the expected life of the underlying loans. Expected life is based on the contractual terms of the loans, as adjusted for prepayment projections. The weighted average annual constant prepayment rate and the weighted average discount rate used in the December 31, 2016 valuation were 12.6% and 10.1% , respectively. Management tests the reasonableness of the significant inputs to the third-party valuation in comparison to market data. As required by FASB ASC Section 825-10-50, the following table details the book values and the estimated fair values of the Corporation’s financial instruments as of December 31, 2016 and 2015 . A general description of the methods and assumptions used to estimate such fair values is also provided. 2016 2015 Book Value Estimated Book Value Estimated (in thousands) FINANCIAL ASSETS Cash and due from banks $ 118,763 $ 118,763 $ 101,120 $ 101,120 Interest-bearing deposits with other banks 233,763 233,763 230,300 230,300 Federal Reserve Bank and FHLB stock 57,489 57,489 62,216 62,216 Loans held for sale (1) 28,697 28,697 16,886 16,886 Securities available for sale (1) 2,559,227 2,559,227 2,484,773 2,484,773 Net Loans (1) 14,530,593 14,387,454 13,669,548 13,540,903 Accrued interest receivable 46,294 46,294 42,767 42,767 Other financial assets (1) 206,132 206,132 166,920 166,920 FINANCIAL LIABILITIES Demand and savings deposits $ 12,259,622 $ 12,259,622 $ 11,267,367 $ 11,267,367 Time deposits 2,753,242 2,769,757 2,864,950 2,862,868 Short-term borrowings 541,317 541,317 497,663 497,663 Accrued interest payable 9,632 9,632 10,724 10,724 Other financial liabilities (1) 216,080 216,080 190,927 190,927 FHLB advances and long-term debt 929,403 928,167 949,542 959,315 (1) These financial instruments, or certain financial instruments within these categories, are measured at fair value on the Corporation’s consolidated balance sheets. Descriptions of the fair value determinations for these financial instruments are disclosed above. Fair values of financial instruments are significantly affected by the assumptions used, principally the timing of future cash flows and discount rates. Because assumptions are inherently subjective in nature, the estimated fair values cannot be substantiated by comparison to independent market quotes and, in many cases, the estimated fair values could not necessarily be realized in an immediate sale or settlement of the instrument. The aggregate fair value amounts presented do not necessarily represent management’s estimate of the underlying value of the Corporation. For short-term financial instruments, defined as those with remaining maturities of 90 days or less, and excluding those recorded at fair value on the Corporation’s consolidated balance sheets, book value was considered to be a reasonable estimate of fair value. The following instruments are predominantly short-term: Assets Liabilities Cash and due from banks Demand and savings deposits Interest-bearing deposits with other banks Short-term borrowings Accrued interest receivable Accrued interest payable Federal Reserve Bank and FHLB stock represent restricted investments and are carried at cost on the consolidated balance sheets. Fair values for loans and time deposits were estimated by discounting future cash flows using the current rates at which similar loans would be made to borrowers and similar deposits would be issued to customers for the same remaining maturities. Fair values estimated in this manner do not fully incorporate an exit price approach to fair value, as defined in FASB ASC Topic 820. The fair values of FHLB advances and long-term debt were estimated by discounting the remaining contractual cash flows using a rate at which the Corporation could issue debt with similar remaining maturities as of the balance sheet date. These borrowings would be categorized within Level 2 liabilities under FASB ASC Topic 820.

Condensed Financial Information

Condensed Financial Information - Parent Company Only	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Statements - Parent Company Only	NOTE 19 – CONDENSED FINANCIAL INFORMATION - PARENT COMPANY ONLY CONDENSED BALANCE SHEETS (in thousands) December 31 December 31 2016 2015 2016 2015 ASSETS LIABILITIES AND EQUITY Cash $ 8,568 $ — Long-term debt $ 362,005 $ 361,504 Other assets 5,648 4,337 Payable to non-bank subsidiaries 183,152 188,087 Receivable from subsidiaries 46,715 29,249 Other liabilities 77,538 77,263 Total Liabilities 622,695 626,854 Investments in: Bank subsidiaries 2,265,264 2,226,975 Non-bank subsidiaries 417,615 408,187 Shareholders’ equity 2,121,115 2,041,894 Total Assets $ 2,743,810 $ 2,668,748 Total Liabilities and Shareholders’ Equity $ 2,743,810 $ 2,668,748 CONDENSED STATEMENTS OF INCOME 2016 2015 2014 (in thousands) Income: Dividends from subsidiaries $ 115,000 $ 114,000 $ 139,150 Other (1) 148,577 141,241 120,543 263,577 255,241 259,693 Expenses 177,835 176,457 152,243 Income before income taxes and equity in undistributed net income of subsidiaries 85,742 78,784 107,450 Income tax benefit (10,543 ) (11,834 ) (10,549 ) 96,285 90,618 117,999 Equity in undistributed net income (loss) of: Bank subsidiaries 58,477 60,806 33,134 Non-bank subsidiaries 6,863 (1,922 ) 6,761 Net Income $ 161,625 $ 149,502 $ 157,894 (1) Consists primarily of management fees received from subsidiary banks. CONDENSED STATEMENTS OF CASH FLOWS 2016 2015 2014 (in thousands) Cash Flows From Operating Activities: Net Income $ 161,625 $ 149,502 $ 157,894 Adjustments to reconcile net income to net cash provided by operating activities: Stock-based compensation 6,556 5,938 5,865 Excess tax benefits from stock-based compensation (964 ) (201 ) (81 ) (Increase) decrease in other assets (16,585 ) 2,806 (7,120 ) Equity in undistributed net income of subsidiaries (65,340 ) (58,884 ) (39,895 ) Loss on redemption of trust preferred securities — 5,626 — (Decrease) increase in other liabilities and payable to non-bank subsidiaries (5,928 ) 106,490 37,354 Total adjustments (82,261 ) 61,775 (3,877 ) Net cash provided by operating activities 79,364 211,277 154,017 Cash Flows From Investing Activities — — — Cash Flows From Financing Activities: Repayments of long-term debt — (254,640 ) — Additions to long-term debt — 147,779 97,113 Net proceeds from issuance of common stock 16,167 10,607 8,201 Excess tax benefits from stock-based compensation 964 201 81 Dividends paid (69,382 ) (65,361 ) (64,028 ) Acquisition of treasury stock (18,545 ) (50,000 ) (175,255 ) Deferred accelerated stock repurchase payment — — (20,000 ) Net cash used in financing activities (70,796 ) (211,414 ) (153,888 ) Net Increase (Decrease) in Cash and Cash Equivalents 8,568 (137 ) 129 Cash and Cash Equivalents at Beginning of Year — 137 8 Cash and Cash Equivalents at End of Year $ 8,568 $ — $ 137

Summary of Significant Accoun28

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Business and Basis of Financial Statement Presentation	Business: Fulton Financial Corporation ("Parent Company") is a multi-bank financial holding company which provides a full range of banking and financial services to businesses and consumers through its six wholly owned banking subsidiaries: Fulton Bank, N.A., Fulton Bank of New Jersey, The Columbia Bank, Lafayette Ambassador Bank, FNB Bank, N.A. and Swineford National Bank. In addition, the Parent Company owns the following non-bank subsidiaries: Fulton Financial Realty Company, Central Pennsylvania Financial Corp., FFC Management, Inc., FFC Penn Square, Inc. and Fulton Insurance Services Group, Inc. Collectively, the Parent Company and its subsidiaries are referred to as the Corporation. The Corporation’s primary sources of revenue are interest income on loans and investment securities and fee income on its products and services. Its expenses consist of interest expense on deposits and borrowed funds, provision for credit losses, other operating expenses and income taxes. The Corporation’s primary competition is other financial services providers operating in its region. Competitors also include financial services providers located outside the Corporation’s geographic market as a result of the growth in electronic delivery systems. The Corporation is subject to the regulations of certain federal and state agencies and undergoes periodic examinations by such regulatory authorities. The Corporation offers, through its banking subsidiaries, a full range of retail and commercial banking services in Pennsylvania, Delaware, Maryland, New Jersey and Virginia. Industry diversity is the key to the economic well-being of these markets, and the Corporation is not dependent upon any single customer or industry. Basis of Financial Statement Presentation: The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP") and include the accounts of the Parent Company and all wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosed amount of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the period. Actual results could differ from those estimates. The Corporation evaluates subsequent events through the date of the filing of this report with the Securities and Exchange Commission ("SEC").
Federal Reserve Bank and Federal Home Loan Bank (FHLB) Stock	Federal Reserve Bank and Federal Home Loan Bank Stock: Certain of the Corporation's wholly owned banking subsidiaries are members of the Federal Reserve Bank and Federal Home Loan Bank and are required by federal law to hold stock in these institutions according to predetermined formulas. These restricted investments are carried at cost on the consolidated balance sheets and are periodically evaluated for impairment. Each of the Corporation’s subsidiary banks is a member of the Federal Home Loan Bank for the region encompassing the headquarters of the subsidiary bank. Memberships are maintained with the Atlanta, New York and Pittsburgh regional Federal Home Loan Banks (collectively referred to as the "FHLB").
Investments	Investments: Debt securities are classified as held to maturity at the time of purchase when the Corporation has both the intent and ability to hold these investments until they mature. Such debt securities are carried at cost, adjusted for amortization of premiums and accretion of discounts using the effective yield method. The Corporation does not engage in trading activities, however, since the investment portfolio serves as a source of liquidity, all debt securities and marketable equity securities are classified as available for sale. Securities available for sale are carried at estimated fair value with the related unrealized holding gains and losses reported in shareholders’ equity as a component of other comprehensive income, net of tax. Realized securities gains and losses are computed using the specific identification method and are recorded on a trade date basis. Securities are evaluated periodically to determine whether declines in value are other-than-temporary. For its investments in equity securities, most notably its investments in stocks of financial institutions, the Corporation evaluates the near-term prospects of the issuers in relation to the severity and duration of the impairment. Equity securities with fair values less than cost are considered to be other-than-temporarily impaired if the Corporation does not have the ability and intent to hold the investments for a reasonable period of time that would be sufficient for a recovery of fair value. Impaired debt securities are determined to be other-than-temporarily impaired if the Corporation concludes at the balance sheet date that it has the intent to sell, or believes it will more likely than not be required to sell, an impaired debt security before a recovery of its amortized cost basis. Credit losses on other-than-temporarily impaired debt securities are recorded through earnings, regardless of the intent or the requirement to sell. Credit loss is measured as the difference between the present value of an impaired debt security’s expected cash flows and its amortized cost. Non-credit related other-than-temporary impairment charges are recorded as decreases to accumulated other comprehensive income as long as the Corporation has no intent or expected requirement to sell the impaired debt security before a recovery of its amortized cost basis.
Loans and Revenue Recognition	Loans and Revenue Recognition : Loan and lease financing receivables are stated at their principal amount outstanding, except for mortgage loans held for sale, which are carried at fair value. Interest income on loans is accrued as earned. Unearned income on lease financing receivables is recognized on a basis which approximates the effective yield method. In general, a loan is placed on non-accrual status once it becomes 90 days delinquent as to principal or interest. In certain cases a loan may be placed on non-accrual status prior to being 90 days delinquent if there is an indication that the borrower is having difficulty making payments, or the Corporation believes it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. When interest accruals are discontinued, unpaid interest previously credited to income is reversed. Non-accrual loans may be restored to accrual status when all delinquent principal and interest has been paid currently for six consecutive months or the loan is considered secured and in the process of collection. The Corporation generally applies payments received on non-accruing loans to principal until such time as the principal is paid off, after which time any payments received are recognized as interest income. If the Corporation believes that all amounts outstanding on a non-accrual loan will ultimately be collected, payments received subsequent to its classification as a non-accrual loan are allocated between interest income and principal. A loan that is 90 days delinquent may continue to accrue interest if the loan is both adequately secured and is in the process of collection. Past due status is determined based on contractual due dates for loan payments. An adequately secured loan is one that has collateral with a supported fair value that is sufficient to discharge the debt, and/or has an enforceable guarantee from a financially responsible party. A loan is considered to be in the process of collection if collection is proceeding through legal action or through other activities that are reasonably expected to result in repayment of the debt or restoration to current status in the near future. Loans and lease financing receivables deemed to be a loss are written off through a charge against the allowance for loan losses. Closed-end consumer loans are generally charged off when they become 120 days past due ( 180 days for open-end consumer loans) if they are not adequately secured by real estate. All other loans are evaluated for possible charge-off when it is probable that the balance will not be collected, based on the ability of the borrower to pay and the value of the underlying collateral. Principal recoveries of loans previously charged off are recorded as increases to the allowance for loan losses.
Loan Origination Fees and Costs	Loan Origination Fees and Costs: Loan origination fees and the related direct origination costs are deferred and amortized over the life of the loan as an adjustment to interest income generally using the effective yield method. For mortgage loans sold, net loan origination fees and costs are included in the gain or loss on sale of the related loan.
Troubled Debt Restructurings (TDRs)	Troubled Debt Restructurings ("TDRs"): Loans whose terms are modified are classified as TDRs if the Corporation grants the borrowers concessions and it is determined that those borrowers are experiencing financial difficulty. Concessions, whether negotiated or imposed by bankruptcy, granted under a TDR typically involve a temporary deferral of scheduled loan payments, an extension of a loan’s stated maturity date or a reduction in the interest rate. Non-accrual TDRs can be restored to accrual status if principal and interest payments, under the modified terms, are current for six consecutive months after modification.
Allowance for Credit Losses	Allowance for Credit Losses: The allowance for credit losses consists of the allowance for loan losses and the reserve for unfunded lending commitments. The allowance for loan losses represents management’s estimate of incurred losses in the loan portfolio as of the balance sheet date and is recorded as a reduction to loans. The reserve for unfunded lending commitments represents management’s estimate of incurred losses in its unfunded loan commitments and is recorded in other liabilities on the consolidated balance sheets. The allowance for credit losses is increased by charges to expense, through the provision for credit losses, and decreased by charge-offs, net of recoveries. Management believes that the allowance for loan losses and the reserve for unfunded lending commitments are adequate as of the balance sheet date; however, future changes to the allowance or reserve may be necessary based on changes in any of the factors discussed in the following paragraphs. Maintaining an adequate allowance for credit losses is dependent upon various factors, including the ability to identify potential problem loans in a timely manner. For commercial loans, commercial mortgages and construction loans to commercial borrowers, an internal risk rating process is used. The Corporation believes that internal risk ratings are the most relevant credit quality indicator for these types of loans. The migration of loans through the various internal risk rating categories is a significant component of the allowance for credit loss methodology for these loans, which bases the probability of default on this migration. Assigning risk ratings involves judgment. The Corporation's loan review officers provide a separate assessment of risk rating accuracy. Risk ratings may be changed based on the ongoing monitoring procedures performed by loan officers or credit administration staff, or if specific loan review assessments identify a deterioration or an improvement in the loan. The following is a summary of the Corporation's internal risk rating categories: • Pass : These loans do not currently pose undue credit risk and can range from the highest to average quality, depending on the degree of potential risk. • Special Mention : These loans have an undue and unwarranted credit risk, but not to the point of justifying a classification of substandard. Loans in this category are currently acceptable, but are nevertheless potentially weak. • Substandard or Lower : These loans are inadequately protected by current sound worth and paying capacity of the borrower. There exists a well-defined weakness or weaknesses that jeopardize the normal repayment of the debt. The Corporation does not assign internal risk ratings for smaller balance, homogeneous loans, such as: home equity, residential mortgage, consumer, lease receivables and construction loans to individuals secured by residential real estate. For these loans, the most relevant credit quality indicator is delinquency status. The migration of loans through the various delinquency status categories is a significant component of the allowance for credit loss methodology for these loans, which bases the probability of default on this migration. The Corporation’s allowance for loan losses includes: 1) specific allowances allocated to loans evaluated for impairment under the Financial Accounting Standards Board's Accounting Standards Codification ("FASB ASC") Section 310-10-35; and 2) allowances calculated for pools of loans measured for impairment under FASB ASC Subtopic 450-20. A loan is considered to be impaired if it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. Impaired loans consist of all loans on non-accrual status and accruing TDRs. An allowance for loan losses is established for an impaired loan if its carrying value exceeds its estimated fair value. Impaired loans to borrowers with total outstanding commitments greater than or equal to $1.0 million are evaluated individually for impairment. Impaired loans to borrowers with total outstanding commitments less than $1.0 million are pooled and measured for impairment collectively. All loans evaluated for impairment under FASB ASC Section 310-10-35 are measured for losses on a quarterly basis. As of December 31, 2016 and 2015 , substantially all of the Corporation’s impaired loans to borrowers with total outstanding loan balances greater than or equal to $1.0 million were measured based on the estimated fair value of each loan’s collateral. Collateral could be in the form of real estate, in the case of impaired commercial mortgages and construction loans, or business assets, such as accounts receivable or inventory, in the case of commercial and industrial loans. Commercial and industrial loans may also be secured by real property. For loans secured by real estate, estimated fair values are determined primarily through appraisals performed by state certified third-party appraisers, discounted to arrive at expected net sale proceeds. For collateral dependent loans, estimated real estate fair values are also net of estimated selling costs. When a real estate secured loan becomes impaired, a decision is made regarding whether an updated appraisal of the real estate is necessary. This decision is based on various considerations, including: the age of the most recent appraisal; the loan-to-value ratio based on the original appraisal; the condition of the property; the Corporation’s experience and knowledge of the real estate market; the purpose of the loan; market factors; payment status; the strength of any guarantors; and the existence and age of other indications of value such as broker price opinions, among others. The Corporation generally obtains updated state certified third-party appraisals for impaired loans secured predominantly by real estate every 12 months. As of December 31, 2016 and 2015 , approximately 62% and 69% , respectively, of impaired loans with principal balances greater than or equal to $1.0 million , whose primary collateral is real estate, were measured at estimated fair value using state certified third-party appraisals that had been updated within the preceding 12 months. When updated appraisals are not obtained for loans evaluated for impairment under FASB ASC Section 310-10-35 that are secured by real estate, fair values are estimated based on the original appraisal values, as long as the original appraisal indicated an acceptable loan-to-value position and, in the opinion of the Corporation's internal credit administration staff, there has not been a significant deterioration in the collateral value since the original appraisal was performed. Original appraisals are typically used only when the estimated collateral value, as adjusted appropriately for the age of the appraisal, results in a current loan-to-value ratio that is lower than the Corporation's loan-to-value requirements for new loans, generally less than 70% . For impaired loans with principal balances greater than or equal to $1.0 million secured by non-real estate collateral, such as accounts receivable or inventory, estimated fair values are determined based on borrower financial statements, inventory listings, accounts receivable agings or borrowing base certificates. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets. Liquidation or collection discounts are applied to these assets based upon existing loan evaluation policies. All loans not evaluated for impairment under FASB ASC Section 310-10-35 are evaluated for impairment under FASB ASC Subtopic 450-20, using a pooled loss evaluation approach. In general, these loans include residential mortgages, home equity loans, consumer loans, and lease receivables. Accruing commercial loans, commercial mortgages and construction loans are also evaluated for impairment under FASB ASC Subtopic 450-20. The Corporation segments its loan portfolio by general loan type, or "portfolio segments," as presented in the table under the heading, "Loans, net of unearned income," within Note 4, "Loans and Allowance for Credit Losses." Certain portfolio segments are further disaggregated and evaluated collectively for impairment based on "class segments," which are largely based on the type of collateral underlying each loan. For commercial loans, class segments include loans secured by collateral and unsecured loans. Construction loan class segments include loans secured by commercial real estate, loans to commercial borrowers secured by residential real estate and loans to individuals secured by residential real estate. Consumer loan class segments are based on collateral types and include direct consumer installment loans and indirect automobile loans. The Corporation calculates allowance allocation needs for loans measured under FASB ASC Subtopic 450-20 through the following procedures: • The loans are segmented into pools with similar characteristics, as noted above. Commercial loans, commercial mortgages and construction loans to commercial borrowers are further segmented into separate pools based on internally assigned risk ratings. Residential mortgages, home equity loans, consumer loans, and lease receivables are further segmented into separate pools based on delinquency status. • A loss rate is calculated for each pool through a migration analysis of historical losses as loans migrate through the various risk rating or delinquency categories. Estimated loss rates are based on a probability of default and a loss rate forecast. • The loss rate is adjusted to consider qualitative factors, such as economic conditions and trends. • The resulting adjusted loss rate is applied to the balance of the loans in the pool to arrive at the allowance allocation for the pool. The allocation of the allowance for credit losses is reviewed to evaluate its appropriateness in relation to the overall risk profile of the loan portfolio. The Corporation considers risk factors such as: local and national economic conditions; trends in delinquencies and non-accrual loans; the diversity of borrower industry types; and the composition of the portfolio by loan type. An unallocated allowance is maintained for factors and conditions that exist at the balance sheet date, but are not specifically identifiable, and to recognize the inherent imprecision in estimating and measuring loss exposure.
Premises and Equipment	Premises and Equipment: Premises and equipment are stated at cost, less accumulated depreciation and amortization. The provision for depreciation and amortization is generally computed using the straight-line method over the estimated useful lives of the related assets, which are a maximum of 50 years for buildings and improvements, 8 years for furniture and 5 years for equipment. Leasehold improvements are amortized over the shorter of the useful life or the non-cancelable lease term.
Other Real Estate Owned	Other Real Estate Owned ("OREO"): Assets acquired in settlement of mortgage loan indebtedness are recorded as OREO and are included in other assets on the consolidated balance sheets, initially at the lower of the estimated fair value of the asset, less estimated selling costs, or the carrying amount of the loan. Costs to maintain the assets and subsequent gains and losses on sales are included in OREO and repossession expense on the consolidated statements of income.
Mortgage Servicing Rights	Mortgage Servicing Rights ("MSRs"): The estimated fair value of MSRs related to residential mortgage loans sold and serviced by the Corporation is recorded as an asset upon the sale of such loans. MSRs are amortized as a reduction to servicing income over the estimated lives of the underlying loans. MSRs are stratified and evaluated for impairment by comparing each stratum's carrying amount to its estimated fair value. Fair values are determined through a discounted cash flows valuation completed by a third-party valuation expert. Significant inputs to the valuation include expected net servicing income, the discount rate and the expected lives of the underlying loans. Expected life is based on the contractual terms of the loans, as adjusted for prepayment projections. To the extent the amortized cost of the MSRs exceeds their estimated fair value, a valuation allowance is established through a charge against servicing income, included as a component of mortgage banking income on the consolidated statements of income. If subsequent valuations indicate that impairment no longer exists, the valuation allowance is reduced through an increase to servicing income.
Derivative Financial Instruments	Derivative Financial Instruments: The Corporation manages its exposure to certain interest rate and foreign currency risks through the use of derivatives. None of the Corporation's outstanding derivative contracts are designated as hedges and none are entered into for speculative purposes. Derivative instruments are carried at fair value, with changes in fair values recognized in earnings as components of non-interest income or non-interest expense on the consolidated statements of income. Derivative contracts create counterparty credit risk with both the Corporation's customers and with institutional derivative counterparties. The Corporation manages counterparty credit risk through its credit approval processes, monitoring procedures and obtaining adequate collateral, when the Corporation determines it is appropriate to do so and in accordance with counterparty contracts. Mortgage Banking Derivatives In connection with its mortgage banking activities, the Corporation enters into commitments to originate certain fixed-rate residential mortgage loans for customers, also referred to as interest rate locks. In addition, the Corporation enters into forward commitments for the future sales or purchases of mortgage-backed securities to or from third-party counterparties to hedge the effect of changes in interest rates on the values of both the interest rate locks and mortgage loans held for sale. Forward sales commitments may also be in the form of commitments to sell individual mortgage loans at a fixed price at a future date. The amount necessary to settle each interest rate lock is based on the price that secondary market investors would pay for loans with similar characteristics, including interest rate and term, as of the date fair value is measured. Gross derivative assets and liabilities are recorded in other assets and other liabilities, respectively, on the consolidated balance sheets, with changes in fair values during the period recorded in mortgage banking income on the consolidated statements of income. Interest Rate Swaps The Corporation enters into interest rate swaps with certain qualifying commercial loan customers to meet their interest rate risk management needs. The Corporation simultaneously enters into interest rate swaps with dealer counterparties, with identical notional amounts and terms. The net result of these interest rate swaps is that the customer pays a fixed rate of interest and the Corporation receives a floating rate. These interest rate swaps are derivative financial instruments and the gross fair values are recorded in other assets and other liabilities on the consolidated balance sheets, with changes in fair value during the period recorded in other non-interest expense on the consolidated statements of income. Foreign Exchange Contracts The Corporation enters into foreign exchange contracts to accommodate the needs of its customers. Foreign exchange contracts are commitments to buy or sell foreign currency on a future date at a contractual price. The Corporation offsets its foreign exchange contract exposure with customers by entering into contracts with third-party correspondent financial institutions to mitigate its exposure to fluctuations in foreign currency exchange rates. The Corporation also holds certain amounts of foreign currency with international correspondent banks. The Corporation's policy limits the total net foreign currency open positions, which includes all outstanding contracts and foreign account balances, to $500,000 . Gross fair values are recorded in other assets and other liabilities on the consolidated balance sheets, with changes in fair values during the period recorded in other service charges and fees on the consolidated statements of income.
Balance Sheet Offsetting	Balance Sheet Offsetting: Although certain financial assets and liabilities may be eligible for offset on the consolidated balance sheets as they are subject to master netting arrangements or similar agreements, the Corporation elects to not offset such qualifying assets and liabilities. The Corporation is a party to interest rate swap transactions with financial institution counterparties and customers. Under these agreements, the Corporation has the right to net-settle multiple contracts with the same counterparty in the event of default on, or termination of, any one contract. Cash collateral is posted by the party with a net liability position in accordance with contract thresholds and can be used to settle the fair value of the interest rate swap agreements in the event of default. The Corporation is also a party to foreign currency exchange contracts with financial institution counterparties, under which the Corporation has the right to net-settle multiple contracts with the same counterparty in the event of default on, or termination of, any one contract. As with interest rate swap contracts, cash collateral is posted by the party with a net liability position in accordance with contract thresholds and can be used to settle the fair value of the foreign currency exchange contracts in the event of default. For additional details, see "Note 10 - Derivative Financial Instruments." The Corporation also enters into agreements with customers in which it sells securities subject to an obligation to repurchase the same or similar securities, referred to as repurchase agreements. Under these agreements, the Corporation may transfer legal control over the assets but still maintain effective control through agreements that both entitle and obligate the Corporation to repurchase the assets. Therefore, repurchase agreements are reported as secured borrowings, classified in short-term borrowings on the consolidated balance sheets, while the securities underlying the repurchase agreements remain classified with investment securities on the consolidated balance sheets. The Corporation has no intention of setting off these amounts, therefore, these repurchase agreements are not eligible for offset.
Income Taxes	Income Taxes:
Stock-Based Compensation	Stock-Based Compensation: The Corporation grants equity awards to employees, consisting of stock options, restricted stock, restricted stock units ("RSUs") and performance-based restricted stock units ("PSUs") under its Amended and Restated Equity and Cash Incentive Compensation Plan ("Employee Equity Plan"). In addition, employees may purchase stock under the Corporation’s Employee Stock Purchase Plan ("ESPP"). The Corporation also grants stock equity awards to non-employee members of its board of directors under the 2011 Directors’ Equity Participation Plan ("Directors’ Plan"). Under the Directors’ Plan, the Corporation can grant equity awards to non-employee holding company and subsidiary bank directors in the form of stock options, restricted stock or common stock. Stock option fair values are estimated through the use of the Black-Scholes valuation methodology as of the date of grant. Stock options carry terms of up to ten years. The fair value of restricted stock, RSUs and a majority of PSUs are based on the trading price of the Corporation's stock on the date of grant. The fair value of certain PSUs are estimated through the use of the Monte Carlo valuation methodology as of the date of grant. Equity awards issued under the Employee Equity Plan are generally granted annually and become fully vested over or after a three -year vesting period. The vesting period for non-performance-based awards represents the period during which employees are required to provide service in exchange for such awards. Equity awards under the Directors' Plan generally vest immediately upon grant. Certain events, as defined in the Employee Equity Plan and the Directors' Plan, result in the acceleration of the vesting of equity awards. Restricted stock, RSUs and PSUs earn dividends during the vesting period, which are forfeitable if the awards do not vest. The fair value of stock options, restricted stock and RSUs granted to employees is recognized as compensation expense over the vesting period for such awards. Compensation expense for PSUs is also recognized over the vesting period, however, compensation expense for PSUs may vary based on the expectations for actual performance relative to defined performance measures.
Net Income Per Share	Net Income Per Share: Basic net income per common share is calculated as net income divided by the weighted average number of shares outstanding. Diluted net income per share is calculated as net income divided by the weighted average number of shares outstanding plus the incremental number of shares added as a result of converting common stock equivalents, calculated using the treasury stock method. The Corporation’s common stock equivalents consist of outstanding stock options, restricted stock, RSUs and PSUs. PSUs are required to be included in weighted average diluted shares outstanding if performance measures, as defined in each PSU award agreement, are met as of the end of the period.
Disclosures about Segments of an Enterprise and Related Information	Disclosures about Segments of an Enterprise and Related Information : The Corporation does not have any operating segments which require disclosure of additional information. While the Corporation owns six separate banks, each engages in similar activities, provides similar products and services, and operates in the same general geographic area. The Corporation’s non-banking activities are immaterial and, therefore, separate information has not been disclosed.
Financial Guarantees	Financial Guarantees : Financial guarantees, which consist primarily of standby and commercial letters of credit, are accounted for by recognizing a liability equal to the fair value of the guarantees and crediting the liability to income over the term of the guarantee. Fair value is estimated based on the fees currently charged to enter into similar agreements with similar terms.
Business Combinations and Intangible Assets	Business Combinations and Intangible Assets : The Corporation accounts for its acquisitions using the purchase accounting method. Purchase accounting requires that all assets acquired and liabilities assumed, including certain intangible assets that must be recognized, be recorded at their estimated fair values as of the acquisition date. Any purchase price exceeding the fair value of net assets acquired is recorded as goodwill. Goodwill is not amortized to expense, but is tested for impairment at least annually. A quantitative annual impairment test is not required if, based on a qualitative analysis, the Corporation determines that the existence of events and circumstances indicate that it is more likely than not that goodwill is not impaired. Write-downs of the balance, if necessary as a result of the impairment test, are charged to expense in the period in which goodwill is determined to be impaired. The Corporation performs its annual test of goodwill impairment as of October 31st of each year. If certain events occur which indicate goodwill might be impaired between annual tests, goodwill must be tested when such events occur. Based on the results of its annual impairment tests, the Corporation concluded that there was no impairment in 2016 , 2015 or 2014 . See "Note 6 - Goodwill and Intangible Assets," for additional details. Intangible assets are amortized over their estimated lives. Some intangible assets have indefinite lives and are, therefore, not amortized. All intangible assets must be evaluated for impairment if certain events occur. Any impairment write-downs are recognized as non-interest expense on the consolidated statements of income.
Variable Interest Entities	Variable Interest Entities ("VIEs") : FASB ASC Topic 810 provides guidance on when to consolidate certain VIEs in the financial statements of the Corporation. VIEs are entities in which equity investors do not have a controlling financial interest or do not have sufficient equity at risk for the entity to finance activities without additional financial support from other parties. VIEs are assessed for consolidation under ASC Topic 810 when the Corporation holds variable interests in these entities. The Corporation consolidates VIEs when it is deemed to be the primary beneficiary. The primary beneficiary of a VIE is determined to be the party that has the power to make decisions that most significantly affect the economic performance of the VIE and has the obligation to absorb losses or the right to receive benefits that in either case could potentially be significant to the VIE. The Parent Company owns all of the common stock of three subsidiary trusts, which have issued securities (Trust Preferred Securities) in conjunction with the Parent Company issuing junior subordinated deferrable interest debentures to the trusts. The terms of the junior subordinated deferrable interest debentures are the same as the terms of the Trust Preferred Securities ("TruPS"). The Parent Company’s obligations under the debentures constitute a full and unconditional guarantee by the Parent Company of the obligations of the trusts. The provisions of ASC Topic 810 related to subsidiary trusts, as interpreted by the SEC, disallow consolidation of subsidiary trusts in the financial statements of the Corporation. As a result, TruPS are not included on the Corporation’s consolidated balance sheets. The junior subordinated debentures issued by the Parent Company to the subsidiary trusts, which have the same total balance and rate as the combined equity securities and TruPS issued by the subsidiary trusts, remain in long-term debt. See "Note 9 - Short-Term Borrowings and Long-Term Debt," for additional information.
Fair Value Measurements	Fair Value Measurements: FASB ASC Topic 820 establishes a fair value hierarchy for the inputs to valuation techniques used to measure assets and liabilities at fair value using the following three categories (from highest to lowest priority): • Level 1 – Inputs that represent quoted prices for identical instruments in active markets. • Level 2 – Inputs that represent quoted prices for similar instruments in active markets, or quoted prices for identical instruments in non-active markets. Also includes valuation techniques whose inputs are derived principally from observable market data other than quoted prices, such as interest rates or other market-corroborated means. • Level 3 – Inputs that are largely unobservable, as little or no market data exists for the instrument being valued. The Corporation has categorized all assets and liabilities required to be measured at fair value on both a recurring and nonrecurring basis into the above three levels. See "Note 18 - Fair Value Measurements," for additional details. Fair Value Option: The Corporation has elected to measure mortgage loans held for sale at fair value. Derivative financial instruments related to mortgage banking activities are also recorded at fair value, as detailed under the heading "Derivative Financial Instruments," below. The Corporation determines fair value for its mortgage loans held for sale based on the price that secondary market investors would pay for loans with similar characteristics, including interest rate and term, as of the date fair value is measured. Changes in fair values during the period are recorded as components of mortgage banking income on the consolidated statements of income. Interest income earned on mortgage loans held for sale is classified in interest income on the consolidated statements of income.
New Accounting Standards	Recently Adopted Accounting Standards: In August 2014, the FASB issued ASC Update 2014-15, "Presentation of Financial Statements - Going Concern." ASC Update 2014-15 provides guidance regarding 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 disclosures. The standards update describes how an entity's management should assess whether there are conditions and events, considered in the aggregate, that raise substantial doubt about an entity's ability to continue as a going concern within one year after the date that the financial statements are issued. For public business entities, ASC Update 2014-15 was effective for annual reporting periods ending after December 15, 2016, with earlier adoption permitted. For the Corporation, this standards update was effective with this 2016 annual report on Form 10-K. The adoption of ASC Update 2014-15 did not have an impact on the Corporation’s consolidated financial statements. In November 2014, the FASB issued ASC Update 2014-16, "Derivatives and Hedging: Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or to Equity." ASC Update 2014-16 was issued to reduce existing diversity in the accounting for hybrid financial instruments issued in the form of a share, such as redeemable convertible preferred stock. ASC Update 2014-16 applies to all entities that are issuers of, or investors in, hybrid financial instruments that are issued in the form of a share, and was effective for public business entities’ annual reporting periods beginning after December 15, 2015 and interim periods within those annual periods, with earlier adoption permitted. For the Corporation, this standards update was effective with its March 31, 2016 quarterly report on Form 10-Q. The adoption of ASC Update 2014-16 did not have an impact on the Corporation’s consolidated financial statements. In January 2015, the FASB issued ASC Update 2015-01, "Income Statement - Extraordinary and Unusual Items." ASC Update 2015-01 was issued to eliminate the concept of extraordinary items from U.S. GAAP. net of tax, after income from continuing operations. ASC Update 2015-01 amends existing extraordinary items disclosure guidance. Under the amended guidance, reporting entities will no longer separately disclose extraordinary items, net of tax, after income from continuing operations in the income statement. ASC Update 2015-01 was effective for annual reporting periods beginning after December 15, 2015, with earlier adoption permitted provided that the guidance is applied from the beginning of the fiscal year of adoption. The Corporation adopted this standards update effective with its March 31, 2016 quarterly report on Form 10-Q and the adoption of ASC Update 2015-01 did not have an impact on its consolidated financial statements. In February 2015, the FASB issued ASC Update 2015-02, "Consolidation: Amendments to the Consolidation Analysis." ASC Update 2015-02 changes the way reporting enterprises evaluate whether: (a) they should consolidate limited partnerships and similar entities, (b) fees paid to a decision maker or service provider are variable interests in a VIE, and (c) variable interests in a VIE held by related parties of the reporting enterprise require the reporting enterprise to consolidate the VIE. ASC Update 2015-02 was effective for public business entities' annual and interim reporting periods beginning after December 15, 2015, with earlier adoption permitted. The Corporation adopted this standards update effective with its March 31, 2016 quarterly report on Form 10-Q, and the adoption of ASC Update 2015-02 did not have an impact on its consolidated financial statements. In April 2015, the FASB issued ASC Update 2015-03, "Interest - Imputation of Interest" and updated ASC Update 2015-03 with the issuance of ASC Update 2015-15, "Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements," in August of 2015. ASC Update 2015-03 simplifies the presentation of debt issuances costs. Debt issuance costs related to a recognized debt liability will be presented on the balance sheet as a direct deduction to the debt liability, similar to the presentation of debt discounts. Under prior U.S. GAAP, debt issuance costs were reported on the balance sheet as assets. The costs will continue to be amortized to interest expense using the effective interest method. ASC Update 2015-03 was effective for public business entities' annual and interim reporting periods beginning after December 15, 2015, with earlier adoption permitted. The Corporation adopted this standards update effective with its March 31, 2016 quarterly report on Form 10-Q and the adoption of ASC Update 2015-03 did not have a material impact on its consolidated financial statements. In April 2015, the FASB issued ASC Update 2015-05, "Customer's Accounting for Fees Paid in a Cloud Computing Arrangement." ASC Update 2015-05 provides explicit guidance to determine when a customer's fees paid in a cloud computing arrangement is for the acquisition of software licenses, services, or both. ASC Update 2015-05 was effective for public business entities' annual and interim reporting periods beginning after December 15, 2015, with earlier adoption permitted. The Corporation adopted this standards update effective with its March 31, 2016 quarterly report on Form 10-Q and the adoption of ASC Update 2015-05 did not have a material impact on its consolidated financial statements. Recently Issued Accounting Standards: In May 2014, the Financial Accounting Standards Board ("FASB") issued ASC Update 2014-09, "Revenue from Contracts with Customers." This standards update establishes a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle prescribed by this standards update is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in 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 all contracts with customers, except those that are within the scope of other topics in the FASB ASC. The standard also requires significantly expanded disclosures about revenue recognition. During 2016, the FASB issued amendments to this standard (ASC Updates 2016-08, 2016-10, 2016-11 and 2016-12). These amendments provide further clarification to the standard. For public business entities, ASC Update 2014-09 is effective for interim and annual reporting periods beginning after December 15, 2017. Early application is not permitted. For the Corporation, this standards update is effective with its March 31, 2018 quarterly report on Form 10-Q. The Corporation is currently evaluating the impact of the adoption of ASC update 2014-09 on its consolidated financial statements. In January 2016, the FASB issued ASC Update 2016-01, "Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities." ASC Update 2016-01 provides guidance regarding the income statement impact of equity investments held by an entity and the recognition of changes in fair value of financial liabilities when the fair value option is elected. ASC Update 2016-01 is effective for public business entities' annual and interim reporting periods beginning after December 15, 2017, with earlier adoption permitted. The Corporation intends to adopt this standards update effective with its March 31, 2018 quarterly report on Form 10-Q and does not expect the adoption of ASC Update 2016-01 to have a material impact on its consolidated financial statements. In February 2016, the FASB issued ASC Update 2016-02, "Leases." This standards update states that a lessee should recognize the assets and liabilities that arise from all leases with a term greater than 12 months. The core principle requires the lessee to recognize a liability to make lease payments and a "right-of-use" asset. The accounting applied by the lessor is relatively unchanged. The standards update also requires expanded qualitative and quantitative disclosures. For public business entities, ASC Update 2016-02 is effective for interim and annual reporting periods beginning after December 15, 2018. ASC Update 2016-02 mandates a modified retrospective transition for all entities. Early application is permitted. For the Corporation, this standards update is effective with its March 31, 2019 quarterly report on Form 10-Q. The Corporation is currently evaluating the impact of the adoption of ASC Update 2016-02 on its consolidated financial statements. The Corporation currently operates a number of branches that are leased, with the leases accounted for as operating leases that are not recognized on the balance sheet. Under ASC update 2016-02, right-of-use assets and lease liabilities will need to be recognized on the consolidated balance sheet for these branches. This is expected to be the most significant impact of the adoption of this standards update. In March 2016, the FASB issued ASC Update 2016-09, "Stock Compensation: Improvements to Employee Share-Based Payment Accounting." The purpose of this standards update is to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liability, and classification on the statement of cash flows. ASC Update 2016-09 is effective for interim and annual reporting periods beginning after December 15, 2016. Early application is permitted. For the Corporation, this standards update is effective with its March 31, 2017 quarterly report on Form 10-Q. The Corporation does not expect the adoption of ASC Update 2016-09 to have a material impact on its consolidated financial statements. In June 2016, the FASB issued ASC Update 2016-13, "Financial Instruments - Credit Losses." The new impairment model prescribed by this standards update is a single impairment model for all financial assets (i.e., loans and investments). The recognition of credit losses would be based on an entity’s current estimate of expected losses (referred to as the Current Expected Credit Loss model, or "CECL"), as opposed to recognition of losses only when they are probable (current practice). ASC Update 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted. The Corporation intends to adopt this standards update effective with its March 31, 2020 quarterly report on Form 10-Q. The Corporation is currently evaluating the impact of the adoption of ASC Update 2016-13 on its consolidated financial statements. In August 2016, the FASB issued ASC Update 2016-15, "Statement of Cash Flows - Classification of Certain Cash Receipts and Cash Payments." This standards update provides guidance regarding the presentation of certain cash receipts and cash payments in the statement of cash flows, addressing eight specific cash flow classification issues, in order to reduce existing diversity in practice. ASC Update 2016-15 is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted. The Corporation intends to adopt this standards update effective with its March 31, 2018 quarterly report on Form 10-Q and does not expect the adoption of ASC Update 2016-15 to have a material impact on its consolidated financial statements. In November 2016, the FASB issued ASC Update 2016-18, "Statement of Cash Flows - Restricted Cash." This standards update provides guidance regarding the presentation of restricted cash in the statement of cash flows. The update requires companies to include amounts generally described as restricted cash and restricted cash equivalents, along with cash and cash equivalents, when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. It also requires an entity to disclose the nature of the restrictions on cash and cash equivalents. ASC Update 2016-18 is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted. The Corporation intends to adopt this standards update effective with its March 31, 2018 quarterly report on Form 10-Q and does not expect the adoption of ASC Update 2016-18 to have a material impact on its consolidated financial statements. In January 2017, the FASB issued ASC Update 2017-04, "Intangibles - Goodwill and Other." This standards update eliminates Step 2 of the goodwill impairment test which measures the impairment amount. Identifying and measuring impairment will take place in a single quantitative step. In addition, no separate qualitative assessment for reporting units with zero or negative carrying amount is required. Entities must disclose the existence of these reporting units and the amount of goodwill allocated to them. This update should be applied on a prospective basis and an entity is required to disclose the nature of and reason for the change in accounting principle upon transition. ASC Update 2017-04 is effective for annual or interim goodwill impairment tests in reporting periods beginning after December 15, 2019. Early adoption is permitted. The Corporation intends to adopt this standards update effective with its 2020 goodwill impairment test and does not expect the adoption of ASC Update 2017-04 to have a material impact on its consolidated financial statements.
Reclassification	Reclassifications: Certain amounts in the 2015 and 2014 consolidated financial statements and notes have been reclassified to conform to the 2016 presentation.

Summary of Significant Accoun29

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Reconciliation of Weighted Average Common Shares Outstanding	A reconciliation of weighted average common shares outstanding used to calculate basic and diluted net income per share follows: 2016 2015 2014 (in thousands) Weighted average common shares outstanding (basic) 173,325 175,721 186,219 Impact of common stock equivalents 1,093 1,053 962 Weighted average common shares outstanding (diluted) 174,418 176,774 187,181

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Values of Investment Securities	The following tables present the amortized cost and estimated fair values of investment securities, which were all classified as available for sale, as of December 31 : Amortized Gross Gross Estimated (in thousands) 2016 U.S. Government sponsored agency securities $ 132 $ 2 $ — $ 134 State and municipal securities 405,274 2,043 (15,676 ) 391,641 Corporate debt securities 112,016 1,978 (4,585 ) 109,409 Collateralized mortgage obligations 604,095 1,943 (12,178 ) 593,860 Mortgage-backed securities 1,353,292 6,546 (17,437 ) 1,342,401 Auction rate securities 107,215 — (9,959 ) 97,256 Total debt securities 2,582,024 12,512 (59,835 ) 2,534,701 Equity securities 12,231 12,295 — 24,526 Total $ 2,594,255 $ 24,807 $ (59,835 ) $ 2,559,227 2015 U.S. Government sponsored agency securities $ 25,154 $ 35 $ (53 ) $ 25,136 State and municipal securities 256,746 6,019 — 262,765 Corporate debt securities 100,336 2,695 (6,076 ) 96,955 Collateralized mortgage obligations 835,439 3,042 (16,972 ) 821,509 Mortgage-backed securities 1,154,935 10,104 (6,204 ) 1,158,835 Auction rate securities 106,772 — (8,713 ) 98,059 Total debt securities 2,479,382 21,895 (38,018 ) 2,463,259 Equity securities 14,677 6,845 (8 ) 21,514 Total $ 2,494,059 $ 28,740 $ (38,026 ) $ 2,484,773
Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturities	The amortized cost and estimated fair values of debt securities as of December 31, 2016 , by contractual maturity, are shown in the following table. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Estimated (in thousands) Due in one year or less $ 54,727 $ 55,027 Due from one year to five years 28,720 29,342 Due from five years to ten years 95,658 96,933 Due after ten years 445,532 417,138 624,637 598,440 Collateralized mortgage obligations (1) 604,095 593,860 Mortgage-backed securities (1) 1,353,292 1,342,401 Total debt securities $ 2,582,024 $ 2,534,701
Summary of Gains and Losses from Equity and Debt Securities, and Losses Recognized from Other-than-Temporary Impairment	The following table presents information related to gross gains and losses on the sales of equity and debt securities, and losses recognized for other-than-temporary impairment of investments: Gross Gross Other- Net (in thousands) 2016: Equity securities $ 2,005 $ (10 ) $ — $ 1,995 Debt securities 581 (26 ) — 555 Total $ 2,586 $ (36 ) $ — $ 2,550 2015: Equity securities $ 6,496 $ (1 ) $ — $ 6,495 Debt securities 2,571 — — 2,571 Total $ 9,067 $ (1 ) $ — $ 9,066 2014: Equity securities $ 335 $ — $ (12 ) $ 323 Debt securities 2,058 (322 ) (18 ) 1,718 Total $ 2,393 $ (322 ) $ (30 ) $ 2,041
Summary Of Other Than Temporary Impairment Charges Recorded In Statement Of Operations	There were no other-than-temporary impairment charges in 2016 or 2015. In 2014, there were $30,000 of other-than-temporary impairment charges, consisting of $12,000 of impairment charges on equity securities and $18,000 of charges on pooled trust preferred securities.
Summary of Cumulative Other-than-Temporary Impairment Charges Recognized in Earnings for Pooled Trust Preferred Securities Held	The following table presents a summary of the cumulative credit related other-than-temporary impairment charges, recognized as components of earnings, for debt securities held by the Corporation at December 31 : 2016 2015 2014 (in thousands) Balance of cumulative credit losses on debt securities, beginning of year $ (11,510 ) $ (16,242 ) $ (20,691 ) Additions for credit losses recorded which were not previously recognized as components of earnings — — (18 ) Reductions for securities sold during the period — 4,730 4,460 Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security — 2 7 Balance of cumulative credit losses on debt securities, end of year $ (11,510 ) $ (11,510 ) $ (16,242 )
Gross Unrealized Losses and Fair Values of Investments by Category and Length of Time in Continuous Unrealized Loss Position	The following table presents the gross unrealized losses and estimated fair values of investments, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of December 31, 2016 . There were no gross unrealized losses on equity securities as of December 31, 2016 . Less Than 12 months 12 Months or Longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized (in thousands) State and municipal securities $ 247,509 $ (15,676 ) $ — $ — $ 247,509 $ (15,676 ) Corporate debt securities 11,922 (110 ) 34,629 (4,475 ) 46,551 (4,585 ) Collateralized mortgage obligations 166,905 (3,899 ) 258,237 (8,279 ) 425,142 (12,178 ) Mortgage-backed securities 1,137,510 (17,437 ) — — 1,137,510 (17,437 ) Auction rate securities — — 97,256 (9,959 ) 97,256 (9,959 ) Total debt securities 1,563,846 (37,122 ) 390,122 (22,713 ) 1,953,968 (59,835 ) For comparative purposes, the following table presents gross unrealized losses and the estimated fair value of investments, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2015. Less Than 12 months 12 Months or Longer Total Estimated Unrealized Estimated Unrealized Estimated Unrealized (in thousands) U.S. Government sponsored agency securities $ 9,957 $ (53 ) $ — $ — $ 9,957 $ (53 ) Corporate debt securities 12,892 (97 ) 33,036 (5,979 ) 45,928 (6,076 ) Collateralized mortgage obligations 166,007 (1,467 ) 467,778 (15,505 ) 633,785 (16,972 ) Mortgage-backed securities 611,920 (4,783 ) 63,818 (1,421 ) 675,738 (6,204 ) Auction rate securities — — 98,059 (8,713 ) 98,059 (8,713 ) Total debt securities 800,776 (6,400 ) 662,691 (31,618 ) 1,463,467 (38,018 ) Equity securities — — 14 (8 ) 14 (8 ) Total $ 800,776 $ (6,400 ) $ 662,705 $ (31,626 ) $ 1,463,481 $ (38,026 )
Summary of Amortized Cost and Fair Values of Corporate Debt Securities	The majority of the Corporation’s available for sale corporate debt securities are issued by financial institutions. The following table presents the amortized cost and estimated fair values of corporate debt securities as of December 31 : 2016 2015 Amortized Estimated Amortized Estimated (in thousands) Single-issuer trust preferred securities $ 43,746 $ 39,829 $ 44,648 $ 39,106 Subordinated debt 46,231 46,723 39,610 40,779 Senior debt 18,037 18,433 12,043 12,329 Pooled trust preferred securities — 422 — 706 Corporate debt securities issued by financial institutions 108,014 105,407 96,301 92,920 Other corporate debt securities 4,002 4,002 4,035 4,035 Available for sale corporate debt securities $ 112,016 $ 109,409 $ 100,336 $ 96,955

Loans and Allowance for Credi31

Loans and Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Summary of Gross Loans by Type	Loans, net of unearned income are summarized as follows as of December 31 : 2016 2015 (in thousands) Real estate – commercial mortgage $ 6,018,582 $ 5,462,330 Commercial – industrial, financial and agricultural 4,087,486 4,088,962 Real estate – home equity 1,625,115 1,684,439 Real estate – residential mortgage 1,601,994 1,376,160 Real estate – construction 843,649 799,988 Consumer 291,470 268,588 Leasing and other 246,704 170,914 Overdrafts 3,662 2,737 Loans, gross of unearned income 14,718,662 13,854,118 Unearned income (19,390 ) (15,516 ) Loans, net of unearned income $ 14,699,272 $ 13,838,602
Schedule of Allowance for Credit Losses	The following table presents the components of the allowance for credit losses as of December 31 : 2016 2015 2014 (in thousands) Allowance for loan losses $ 168,679 $ 169,054 $ 184,144 Reserve for unfunded lending commitments 2,646 2,358 1,787 Allowance for credit losses $ 171,325 $ 171,412 $ 185,931
Activity in the Allowance for Credit Losses	The following table presents the activity in the allowance for credit losses for the years ended December 31 : 2016 2015 2014 (in thousands) Balance at beginning of year $ 171,412 $ 185,931 $ 204,917 Loans charged off (33,927 ) (32,157 ) (44,593 ) Recoveries of loans previously charged off 20,658 15,388 13,107 Net loans charged off (13,269 ) (16,769 ) (31,486 ) Provision for credit losses 13,182 2,250 12,500 Balance at end of year $ 171,325 $ 171,412 $ 185,931 The following table presents the activity in the allowance for loan losses by portfolio segment for the years ended December 31 and loans, net of unearned income, and their related allowance for loan losses, by portfolio segment, as of December 31: Real Estate - Commercial - Real Estate - Real Estate - Real Estate - Consumer Leasing Unallocated Total (in thousands) Balance at December 31, 2014 $ 53,493 $ 51,378 $ 28,271 $ 29,072 $ 9,756 $ 3,015 $ 1,799 $ 7,360 $ 184,144 Loans charged off (4,218 ) (15,639 ) (3,604 ) (3,612 ) (201 ) (2,227 ) (2,656 ) — (32,157 ) Recoveries of loans previously charged off 2,801 5,264 1,362 1,322 2,824 1,130 685 — 15,388 Net loans charged off (1,417 ) (10,375 ) (2,242 ) (2,290 ) 2,623 (1,097 ) (1,971 ) — (16,769 ) Provision for loan losses (1) (4,210 ) 16,095 (3,624 ) (5,407 ) (5,850 ) 667 2,640 1,368 1,679 Balance at December 31, 2015 47,866 57,098 22,405 21,375 6,529 2,585 2,468 8,728 169,054 Loans charged off (3,580 ) (15,276 ) (4,912 ) (2,326 ) (1,218 ) (2,800 ) (3,815 ) — (33,927 ) Recoveries of loans previously charged off 3,373 8,981 1,171 1,072 3,924 1,295 842 — 20,658 Net loans charged off (207 ) (6,295 ) (3,741 ) (1,254 ) 2,706 (1,505 ) (2,973 ) — (13,269 ) Provision for loan losses (1) (817 ) 3,550 8,137 2,808 (2,780 ) 2,494 3,697 (4,195 ) 12,894 Balance at December 31, 2016 $ 46,842 $ 54,353 $ 26,801 $ 22,929 $ 6,455 $ 3,574 $ 3,192 $ 4,533 $ 168,679 Allowance for loan losses at December 31, 2016 Measured for impairment under FASB ASC Subtopic 450-20 $ 36,680 $ 40,700 $ 17,290 $ 11,032 $ 4,587 $ 3,548 $ 3,192 $ 4,533 $ 121,562 Evaluated for impairment under FASB ASC Section 310-10-35 10,162 13,653 9,511 11,897 1,868 26 — N/A 47,117 $ 46,842 $ 54,353 $ 26,801 $ 22,929 $ 6,455 $ 3,574 $ 3,192 $ 4,533 $ 168,679 Loans, net of unearned income at December 31, 2016 Measured for impairment under FASB ASC Subtopic 450-20 $ 5,963,689 $ 4,038,511 $ 1,605,910 $ 1,555,946 $ 833,117 $ 291,430 $ 230,976 N/A $ 14,519,579 Evaluated for impairment under FASB ASC Section 310-10-35 54,893 48,975 19,205 46,048 10,532 40 — N/A 179,693 $ 6,018,582 $ 4,087,486 $ 1,625,115 $ 1,601,994 $ 843,649 $ 291,470 $ 230,976 N/A $ 14,699,272 Allowance for loan losses at December 31, 2015 Measured for impairment under FASB ASC Subtopic 450-20 $ 35,395 $ 42,515 $ 14,412 $ 7,953 $ 4,134 $ 2,563 $ 1,764 $ 8,728 $ 117,464 Evaluated for impairment under FASB ASC Section 310-10-35 12,471 14,583 7,993 13,422 2,395 22 704 N/A 51,590 $ 47,866 $ 57,098 $ 22,405 $ 21,375 $ 6,529 $ 2,585 $ 2,468 $ 8,728 $ 169,054 Loans, net of unearned income at December 31, 2015 Measured for impairment under FASB ASC Subtopic 450-20 $ 5,404,036 $ 4,040,810 $ 1,668,673 $ 1,325,735 $ 784,002 $ 268,555 $ 156,710 N/A $ 13,648,521 Evaluated for impairment under FASB ASC Section 310-10-35 58,294 48,152 15,766 50,425 15,986 33 1,425 N/A 190,081 $ 5,462,330 $ 4,088,962 $ 1,684,439 $ 1,376,160 $ 799,988 $ 268,588 $ 158,135 N/A $ 13,838,602 (1) For the year ended December 31, 2016 , the provision for loan losses excluded a $288,000 increase in the reserve for unfunded lending commitments. The total provision for credit losses, comprised of allocations for both funded and unfunded loans, was $13.2 million for the year ended December 31, 2016 . For the year ended December 31, 2015 , the provision for loan losses excluded a $571,000 increase in the reserve for unfunded lending commitments. The total provision for credit losses was $2.3 million for the year ended December 31, 2015 . N/A – Not applicable.
Total Impaired Loans by Class Segment	The following table presents total impaired loans by class segment as of December 31 : 2016 2015 Unpaid Recorded Related Unpaid Recorded Related (in thousands) With no related allowance recorded: Real estate - commercial mortgage $ 28,757 $ 25,447 $ — $ 27,872 $ 22,596 $ — Commercial - secured 29,296 25,526 — 18,012 13,702 — Real estate - residential mortgage 4,689 4,689 — 4,790 4,790 — Construction - commercial residential 6,271 4,795 — 9,916 8,865 — 69,013 60,457 60,590 49,953 With a related allowance recorded: Real estate - commercial mortgage 37,132 29,446 10,162 45,189 35,698 12,471 Commercial - secured 27,767 22,626 13,198 39,659 33,629 14,085 Commercial - unsecured 1,122 823 455 971 821 498 Real estate - home equity 23,971 19,205 9,511 20,347 15,766 7,993 Real estate - residential mortgage 48,885 41,359 11,897 55,242 45,635 13,422 Construction - commercial residential 10,103 4,206 1,300 9,949 6,290 2,110 Construction - commercial 681 435 145 820 638 217 Construction - other 1,096 1,096 423 331 193 68 Consumer - indirect 19 19 12 14 14 8 Consumer - direct 21 21 14 19 19 14 Leasing and other and overdrafts — — — 1,658 1,425 704 150,797 119,236 47,117 174,199 140,128 51,590 Total $ 219,810 $ 179,693 $ 47,117 $ 234,789 $ 190,081 $ 51,590 As of December 31, 2016 and 2015 , there were $60.5 million and $50.0 million , respectively, of impaired loans that did not have a related allowance for loan loss. The estimated fair values of the collateral securing these loans exceeded their carrying amount, or the loans have been charged down to realizable collateral values. Accordingly, no specific valuation allowance was considered to be necessary. The following table presents average impaired loans, by class segment, for the years ended December 31 : 2016 2015 2014 Average Interest Income Average Interest Income Average Interest Income (in thousands) With no related allowance recorded: Real estate - commercial mortgage $ 24,232 $ 294 $ 25,345 $ 315 $ 23,467 $ 320 Commercial - secured 19,825 104 15,654 97 18,928 119 Commercial - unsecured — — 17 — — — Real estate - home equity — — — — 180 1 Real estate - residential mortgage 5,598 126 5,389 124 1,532 31 Construction - commercial residential 6,285 48 11,685 148 15,421 227 Construction - commercial — — 915 — 1,907 — 55,940 572 59,005 684 61,435 698 With a related allowance recorded: Real estate - commercial mortgage 31,737 384 39,232 475 38,240 524 Commercial - secured 25,857 130 25,660 150 20,991 129 Commercial - unsecured 887 4 1,749 6 895 3 Real estate - home equity 17,912 285 13,887 144 13,976 108 Real estate - residential mortgage 42,191 908 46,252 1,041 50,281 1,178 Construction - commercial residential 5,295 41 6,455 79 8,723 136 Construction - commercial 524 — 931 — 1,900 — Construction - other 682 — 263 — 387 — Consumer - indirect 15 1 16 1 7 — Consumer - direct 18 1 17 1 16 1 Leasing, other and overdrafts 854 — 285 — — — 125,972 1,754 134,747 1,897 135,416 2,079 Total $ 181,912 $ 2,326 $ 193,752 $ 2,581 $ 196,851 $ 2,777 (1) All impaired loans, excluding accruing TDRs, were non-accrual loans. Interest income recognized for the years ended December 31, 2016 , 2015 and 2014 represents amounts earned on accruing TDRs.
Financing Receivable Credit Quality Indicators	The following table presents internal credit risk ratings as of December 31 : Pass Special Mention Substandard or Lower Total 2016 2015 2016 2015 2016 2015 2016 2015 (dollars in thousands) Real estate - commercial mortgage $ 5,763,122 $ 5,204,263 $ 132,484 $ 102,625 $ 122,976 $ 155,442 $ 6,018,582 $ 5,462,330 Commercial - secured 3,686,152 3,696,692 128,873 92,711 118,527 136,710 3,933,552 3,926,113 Commercial -unsecured 145,922 156,742 4,481 2,761 3,531 3,346 153,934 162,849 Total commercial - industrial, financial and agricultural 3,832,074 3,853,434 133,354 95,472 122,058 140,056 4,087,486 4,088,962 Construction - commercial residential 113,570 140,337 15,447 17,154 13,172 21,812 142,189 179,303 Construction - commercial 635,963 552,710 3,412 3,684 5,115 3,597 644,490 559,991 Total real estate - construction (excluding construction - other) 749,533 693,047 18,859 20,838 18,287 25,409 786,679 739,294 Total $ 10,344,729 $ 9,750,744 $ 284,697 $ 218,935 $ 263,321 $ 320,907 $ 10,892,747 $ 10,290,586 % of Total 95.0 % 94.8 % 2.6 % 2.1 % 2.4 % 3.1 % 100.0 % 100.0 % The following table presents delinquency and non-performing status for loans that do not have internal credit risk ratings, by class segment, as of December 31 : Performing Delinquent (1) Non-performing (2) Total 2016 2015 2016 2015 2016 2015 2016 2015 (dollars in thousands) Real estate - home equity $ 1,602,687 $ 1,660,773 $ 9,274 $ 8,983 $ 13,154 $ 14,683 $ 1,625,115 $ 1,684,439 Real estate - residential mortgage 1,557,995 1,329,371 20,344 18,305 23,655 28,484 1,601,994 1,376,160 Real estate - construction - other 55,874 59,997 — 88 1,096 609 56,970 60,694 Consumer - direct 93,572 94,262 1,752 2,254 1,563 2,203 96,887 98,719 Consumer - indirect 190,656 166,823 3,599 2,809 328 237 194,583 169,869 Total consumer 284,228 261,085 5,351 5,063 1,891 2,440 291,470 268,588 Leasing, other and overdrafts 229,591 155,870 1,068 759 317 1,506 230,976 158,135 Total $ 3,730,375 $ 3,467,096 $ 36,037 $ 33,198 $ 40,113 $ 47,722 $ 3,806,525 $ 3,548,016 % of Total 98.0 % 97.7 % 0.9 % 1.0 % 1.1 % 1.3 % 100.0 % 100.0 % (1) Includes all accruing loans 30 days to 89 days past due. (2) Includes all accruing loans 90 days or more past due and all non-accrual loans
Non-Performing Assets	The following table presents total non-performing assets as of December 31 : 2016 2015 (in thousands) Non-accrual loans $ 120,133 $ 129,523 Loans 90 days or more past due and still accruing 11,505 15,291 Total non-performing loans 131,638 144,814 Other real estate owned 12,815 11,099 Total non-performing assets $ 144,453 $ 155,913
Past due Loan Status and Non-Accrual Loans by Portfolio Segment	The following table presents past due status and non-accrual loans, by portfolio segment and class segment, as of December 31 : 2016 30-59 60-89 ≥ 90 Days Non- Total ≥ 90 Total Past Current Total (in thousands) Real estate - commercial mortgage $ 6,254 $ 1,622 $ 383 $ 38,936 $ 39,319 $ 47,195 $ 5,971,387 $ 6,018,582 Commercial - secured 6,660 2,616 959 41,589 42,548 51,824 3,881,728 3,933,552 Commercial - unsecured 898 35 152 760 912 1,845 152,089 153,934 Total Commercial - industrial, financial and agricultural 7,558 2,651 1,111 42,349 43,460 53,669 4,033,817 4,087,486 Real estate - home equity 6,596 2,678 2,543 10,611 13,154 22,428 1,602,687 1,625,115 Real estate - residential mortgage 15,600 4,744 5,224 18,431 23,655 43,999 1,557,995 1,601,994 Construction - commercial 743 — — 435 435 1,178 643,312 644,490 Construction - commercial residential 233 51 36 8,275 8,311 8,595 133,594 142,189 Construction - other — — — 1,096 1,096 1,096 55,874 56,970 Total Real estate - construction 976 51 36 9,806 9,842 10,869 832,780 843,649 Consumer - direct 1,211 541 1,563 — 1,563 3,315 93,572 96,887 Consumer - indirect 3,200 399 328 — 328 3,927 190,656 194,583 Total Consumer 4,411 940 1,891 — 1,891 7,242 284,228 291,470 Leasing, other and overdrafts 543 525 317 — 317 1,385 229,591 230,976 $ 41,938 $ 13,211 $ 11,505 $ 120,133 $ 131,638 $ 186,787 $ 14,512,485 $ 14,699,272 2015 30-59 60-89 ≥ 90 Days Non- Total ≥ 90 Total Past Current Total (in thousands) Real estate - commercial mortgage $ 6,469 $ 1,312 $ 439 $ 40,731 $ 41,170 $ 48,951 $ 5,413,379 $ 5,462,330 Commercial - secured 5,654 2,615 1,853 41,498 43,351 51,620 3,874,493 3,926,113 Commercial - unsecured 510 83 19 701 720 1,313 161,536 162,849 Total Commercial - industrial, financial and agricultural 6,164 2,698 1,872 42,199 44,071 52,933 4,036,029 4,088,962 Real estate - home equity 6,438 2,545 3,473 11,210 14,683 23,666 1,660,773 1,684,439 Real estate - residential mortgage 15,141 3,164 6,570 21,914 28,484 46,789 1,329,371 1,376,160 Construction - commercial 50 176 — 638 638 864 559,127 559,991 Construction - commercial residential 1,366 494 — 11,213 11,213 13,073 166,230 179,303 Construction - other 88 — 416 193 609 697 59,997 60,694 Total Real estate - construction 1,504 670 416 12,044 12,460 14,634 785,354 799,988 Consumer - direct 1,687 567 2,203 — 2,203 4,457 94,262 98,719 Consumer - indirect 2,308 501 237 — 237 3,046 166,823 169,869 Total Consumer 3,995 1,068 2,440 — 2,440 7,503 261,085 268,588 Leasing, other and overdrafts 483 276 81 1,425 1,506 2,265 155,870 158,135 $ 40,194 $ 11,733 $ 15,291 $ 129,523 $ 144,814 $ 196,741 $ 13,641,861 $ 13,838,602
Troubled Debt Restructurings on Financing Receivables	The following table presents TDRs as of December 31 : 2016 2015 (in thousands) Real-estate - residential mortgage $ 27,617 $ 28,511 Real-estate - commercial mortgage 15,957 17,563 Construction - commercial residential 726 3,942 Commercial - secured 6,564 5,833 Real estate - home equity 8,594 4,556 Commercial - unsecured 63 120 Consumer - direct 20 19 Consumer - indirect 19 14 Total accruing TDRs 59,560 60,558 Non-accrual TDRs (1) 27,850 31,035 Total TDRs $ 87,410 $ 91,593 (1) Included within non-accrual loans in the preceding table
Loan Terms Modified Under Troubled Debt Restructurings during The Period By Class Segment	The following table presents TDRs by class segment and type of concession for loans that were modified during the years ended December 31, 2016, 2015 and 2014: 2016 2015 2014 Number of Loans Post-Modification Recorded Investment Number of Loans Post-Modification Recorded Investment Number of Loans Post-Modification Recorded Investment (dollars in thousands) Commercial – secured: Extend maturity with rate concession — $ — 2 $ 127 3 $ 315 Extend maturity without rate concession 10 3,801 9 3,785 8 1,640 Commercial – unsecured: Extend maturity without rate concession 2 103 1 38 — — Real estate - commercial mortgage: Extend maturity with rate concession — — 5 2,014 1 60 Extend maturity without rate concession — — 4 639 7 6,781 Real estate - home equity: Extend maturity with rate concession — — 2 36 — — Extend maturity without rate concession 89 4,484 3 203 — — Bankruptcy 47 2,671 52 2,501 30 1,551 Real estate – residential mortgage: Extend maturity with rate concession — — 4 750 2 390 Extend maturity without rate concession 2 315 3 262 2 210 Bankruptcy 6 981 7 2,508 19 1,807 Construction - commercial residential: Extend maturity without rate concession — — 1 1,535 3 3,616 Consumer - direct: Bankruptcy 1 2 2 6 7 7 Consumer - indirect: Bankruptcy 1 21 1 12 4 20 Total 158 $ 12,378 96 $ 14,416 86 $ 16,397
Schedule Of TDRs Modified Last 12 Months Which Had Payment Default In 2014	The following table presents TDRs, by class segment, as of December 31, 2016 , 2015 and 2014 that were modified during the years ended December 31, 2016 , 2015 and 2014 and had a post-modification payment default during their respective year of modification. The Corporation defines a payment default as a single missed scheduled payment: 2016 2015 2014 Number of Loans Recorded Investment Number of Loans Recorded Investment Number of Loans Recorded Investment (dollars in thousands) Construction - commercial residential — $ — — $ — 2 $ 1,803 Real estate - commercial mortgage 1 118 4 359 2 1,660 Real estate - residential mortgage 8 1,500 4 445 11 1,430 Commercial - secured 6 2,497 8 3,549 4 1,208 Commercial - unsecured 1 26 — — — — Real estate - home equity 28 1,836 13 763 11 961 Consumer - indirect 1 19 — — — — Consumer - direct — — — — 1 1 Total 45 $ 5,996 29 $ 5,116 31 $ 7,063

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Summary of Premises and Equipment	The following is a summary of premises and equipment as of December 31 : 2016 2015 (in thousands) Land $ 36,097 $ 37,380 Buildings and improvements 293,836 297,018 Furniture and equipment 137,282 136,029 Construction in progress 21,096 16,585 488,311 487,012 Less: Accumulated depreciation and amortization (270,505 ) (261,477 ) $ 217,806 $ 225,535

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table summarizes the changes in goodwill: 2016 2015 (in thousands) Goodwill $ 530,593 $ 530,593 Non-amortizing intangible assets 963 963 Balance at end of year $ 531,556 $ 531,556

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	12 Months Ended
	Dec. 31, 2016
Transfers and Servicing [Abstract]
Summary of Changes in Mortgage Servicing Rights	The following table summarizes the changes in MSRs, which are included in other assets on the consolidated balance sheets: 2016 2015 (in thousands) Amortized cost: Balance at beginning of year $ 40,944 $ 42,148 Originations of mortgage servicing rights 5,485 6,166 Amortization expense (7,607 ) (7,370 ) Balance at end of year $ 38,822 $ 40,944 Valuation allowance: Balance at beginning of year $ — $ — Net additions to the valuation allowance (1,291 ) — Balance at end of year $ (1,291 ) $ — Net MSRs at end of year $ 37,531 $ 40,944
Schedule Of Servicing Assets Expected Amortization Expense	Estimated MSR amortization expense for the next five years, based on balances as of December 31, 2016 and the estimated remaining lives of the underlying loans, follows (in thousands): Year 2017 $ 6,538 2018 6,087 2019 5,590 2020 5,043 2021 4,443

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2016
Deposits [Abstract]
Schedule Of Deposits Liabilities	Deposits consisted of the following as of December 31 : 2016 2015 (in thousands) Noninterest-bearing demand $ 4,376,137 $ 3,948,114 Interest-bearing demand 3,703,712 3,451,207 Savings and money market accounts 4,179,773 3,868,046 Time deposits 2,753,242 2,864,950 Total Deposits $ 15,012,864 $ 14,132,317
Scheduled Maturities Of Time Deposits	The scheduled maturities of time deposits as of December 31, 2016 were as follows (in thousands): Year 2017 $ 1,333,954 2018 376,599 2019 665,027 2020 182,473 2021 105,934 Thereafter 89,255 $ 2,753,242

Short-Term Borrowings and Lon36

Short-Term Borrowings and Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Short-Term Borrowings and Long-Term Debt [Abstract]
Schedule of Short-term Debt	Short-term borrowings as of December 31, 2016 , 2015 and 2014 and the related maximum amounts outstanding at the end of any month in each of the three years then ended are presented below. The securities underlying the repurchase agreements remain in available for sale investment securities. December 31, Maximum Outstanding 2016 2015 2014 2016 2015 2014 (in thousands) Federal funds purchased $ 278,570 $ 197,235 $ 6,219 $ 449,184 $ 266,338 $ 577,581 Short-term FHLB advances (1) — 110,000 70,000 — 200,000 600,000 Customer repurchase agreements 195,734 111,496 158,394 221,989 212,509 244,729 Customer short-term promissory notes 67,013 78,932 95,106 77,887 93,176 95,106 $ 541,317 $ 497,663 $ 329,719
Schedule of Repurchase Agreements	The following table presents information related to customer repurchase agreements: 2016 2015 2014 (dollars in thousands) Amount outstanding as of December 31 $ 195,734 $ 111,496 $ 158,394 Weighted average interest rate as of December 31 0.10 % 0.15 % 0.13 % Average amount outstanding during the year $ 184,978 $ 161,093 $ 197,432 Weighted average interest rate during the year 0.11 % 0.10 % 0.10 %
Schedule of Long-term Debt Instruments	FHLB advances with an original maturity of one year or more and long-term debt included the following as of December 31: 2016 2015 (in thousands) FHLB advances $ 567,240 $ 587,756 Subordinated debt 350,000 350,000 Junior subordinated deferrable interest debentures 16,496 16,496 Unamortized discounts and issuance costs (4,333 ) (4,710 ) $ 929,403 $ 949,542
Schedule of Maturities of Long-term Debt	The following table summarizes the scheduled maturities of FHLB advances with an original maturity of one year or more and long-term debt as of December 31, 2016 (in thousands): Year 2017 $ 114,415 2018 — 2019 202,731 2020 142,370 2021 199,444 Thereafter 270,443 $ 929,403
Schedule of Subordinated Borrowing	The following table provides details of the debentures as of December 31, 2016 (dollars in thousands): Debentures Issued to Fixed/ Interest Amount Maturity Callable Call Price Columbia Bancorp Statutory Trust Variable 3.49 % $ 6,186 06/30/34 03/31/17 100.0 Columbia Bancorp Statutory Trust II Variable 2.85 % 4,124 03/15/35 03/31/17 100.0 Columbia Bancorp Statutory Trust III Variable 2.73 % 6,186 06/15/35 03/31/17 100.0 $ 16,496

Derivative Financial Instrume37

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Notion Amoutns and Fair Values of Derivative Financial Instruments	The following table presents the notional amounts and fair values of derivative financial instruments as of December 31 : 2016 2015 Notional Asset Notional Asset (in thousands) Interest Rate Locks with Customers Positive fair values $ 87,119 $ 863 $ 87,781 $ 1,291 Negative fair values 18,239 (227 ) 267 (16 ) Net interest rate locks with customers 636 1,275 Forward Commitments Positive fair values 70,031 2,223 69,045 205 Negative fair values 19,964 (112 ) 16,193 (24 ) Net forward commitments 2,111 181 Interest Rate Swaps with Customers Positive fair values 876,744 24,397 846,490 32,915 Negative fair values 583,060 (16,998 ) 8,757 (55 ) Net interest rate swaps with customers 7,399 32,860 Interest Rate Swaps with Dealer Counterparties Positive fair values 583,060 16,998 8,757 55 Negative fair values 876,744 (24,397 ) 846,490 (32,915 ) Net interest rate swaps with dealer counterparties (7,399 ) (32,860 ) Foreign Exchange Contracts with Customers Positive fair values 11,674 504 4,897 114 Negative fair values 4,659 (221 ) 8,050 (184 ) Net foreign exchange contracts with customers 283 (70 ) Foreign Exchange Contracts with Correspondent Banks Positive fair values 7,040 241 9,728 428 Negative fair values 12,869 (447 ) 6,899 (147 ) Net foreign exchange contracts with correspondent banks (206 ) 281 Net derivative fair value asset $ 2,824 $ 1,667
Summary of Fair Value Gains and Losses on Derivative Financial Instruments	The following table presents the fair value gains and losses on derivative financial instruments for the years ended December 31: 2016 2015 2014 Statement of Income Classification (in thousands) Interest rate locks with customers $ (639 ) $ (110 ) $ 577 Mortgage banking income Forward commitments 1,930 1,345 (2,422 ) Mortgage banking income Interest rate swaps with customers (25,461 ) 13,342 20,406 Other non-interest expense Interest rate swaps with counterparties 25,461 (13,342 ) (20,406 ) Other non-interest expense Foreign exchange contracts with customers 353 (439 ) 688 Other service charges and fees Foreign exchange contracts with correspondent banks (487 ) 711 (880 ) Other service charges and fees Net fair value gains (losses) on derivative financial instruments $ 1,157 $ 1,507 $ (2,037 )
Fair Value, Option, Qualitative Disclosures Related to Election	The Corporation has elected to record mortgage loans held for sale at fair value. The following table presents a summary of mortgage loans held for sale and the impact of the fair value election on the consolidated financial statements as of and for the years ended December 31, 2016 and 2015 : Cost (1) Fair Value Balance Sheet Fair Value Loss Statement of Income Classification (in thousands) December 31, 2016: Mortgage loans held for sale $ 28,708 $ 28,697 Loans held for sale $ (313 ) Mortgage banking income December 31, 2015: Mortgage loans held for sale 16,584 16,886 Loans held for sale (140 ) Mortgage banking income (1) Cost basis of mortgage loans held for sale represents the unpaid principal balance.
Offsetting Assets and Liabilities	The following table presents the financial instruments that are eligible for offset, and the effects of offsetting, on the consolidated balance sheets as of December 31: Gross Amounts Gross Amounts Not Offset Recognized on the Consolidated on the Balance Sheets Consolidated Financial Cash Net Balance Sheets Instruments (1) Collateral (2) Amount (in thousands) 2016 Interest rate swap derivative assets $ 41,395 $ (15,117 ) $ — $ 26,278 Foreign exchange derivative assets with correspondent banks 241 (241 ) — — Total $ 41,636 $ (15,358 ) $ — $ 26,278 Interest rate swap derivative liabilities $ 41,395 $ (15,117 ) $ (4,010 ) $ 22,268 Foreign exchange derivative liabilities with correspondent banks 447 (241 ) (206 ) — Total $ 41,842 $ (15,358 ) $ (4,216 ) $ 22,268 2015 Interest rate swap derivative assets $ 32,970 $ (55 ) $ — $ 32,915 Foreign exchange derivative assets with correspondent banks 428 (147 ) — 281 Total $ 33,398 $ (202 ) $ — $ 33,196 Interest rate swap derivative liabilities $ 32,970 $ (55 ) $ (31,130 ) $ 1,785 Foreign exchange derivative liabilities with correspondent banks 147 (147 ) — — Total $ 33,117 $ (202 ) $ (31,130 ) $ 1,785 (1) For interest rate swap assets, amounts represent any derivative liability fair values that could be offset in the event of counterparty or customer default. For interest rate swap liabilities, amounts represent any derivative asset fair values that could be offset in the event of counterparty or customer default. (2) Amounts represent cash collateral posted on interest rate swap transactions and foreign exchange contracts with financial institution counterparties. Interest rate swaps with customers are collateralized by the underlying loans to those borrowers. Cash and securities collateral amounts are included in the table only to the extent of the net derivative fair values.

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2016
Regulatory Matters [Abstract]
Schedule of Compliance with Regulatory Capital Requirements	The following table presents the Total risk-based, Tier I risk-based, Common Equity Tier I risk-based and Tier I leverage requirements for the Corporation and its four significant subsidiaries with total assets in excess of $1 billion , as of December 31, 2016 , under the U.S. Basel III Capital Rules: 2016 Actual For Capital Well Capitalized Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) Total Capital (to Risk-Weighted Assets): Corporation $ 2,074,526 13.2 % $ 1,255,292 8.0 % N/A N/A Fulton Bank, N.A. 1,142,326 12.2 747,359 8.0 $ 934,199 10.0 % Fulton Bank of New Jersey 385,807 13.1 234,782 8.0 293,427 10.0 The Columbia Bank 203,890 12.2 133,836 8.0 167,294 10.0 Lafayette Ambassador Bank 175,254 14.6 96,100 8.0 120,125 10.0 Tier I Capital (to Risk-Weighted Assets): Corporation $ 1,637,150 10.4 % $ 941,469 6.0 % N/A N/A Fulton Bank, N.A 1,050,175 11.2 560,519 6.0 $ 747,359 8.0 % Fulton Bank of New Jersey 348,992 11.9 176,086 6.0 234,782 8.0 The Columbia Bank 185,983 11.1 100,377 6.0 133,836 8.0 Lafayette Ambassador Bank 166,186 13.8 72,075 6.0 96,100 8.0 Common Equity Tier I Capital (to Risk-weighted Assets): Corporation $ 1,637,150 10.4 % $ 706,102 4.5 % N/A N/A Fulton Bank, N.A 1,006,175 10.8 420,389 4.5 $ 607,229 6.5 % Fulton Bank of New Jersey 348,992 11.9 132,065 4.5 190,760 6.5 The Columbia Bank 185,983 11.1 72,282 4.5 108,741 6.5 Lafayette Ambassador Bank 166,186 13.8 54,056 4.5 78,081 6.5 Tier I Capital (to Average Assets): Corporation $ 1,637,150 9.0 % $ 727,745 4.0 % N/A N/A Fulton Bank, N.A 1,050,175 10.1 415,981 4.0 $ 519,977 5.0 % Fulton Bank of New Jersey 348,992 9.4 148,472 4.0 185,590 5.0 The Columbia Bank 185,983 8.6 86,310 4.0 107,888 5.0 Lafayette Ambassador Bank 166,186 10.9 61,129 4.0 76,412 5.0 N/A – Not applicable as "well capitalized" applies to banks only. The following table presents the Total risk-based, Tier I risk-based and Tier I leverage requirements as of December 31, 2015 , under U.S. Basel III Capital Rules: 2015 Actual For Capital Well Capitalized Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) Total Capital (to Risk-Weighted Assets): Corporation $ 1,997,926 13.2 % $ 1,214,868 8.0 % N/A N/A Fulton Bank, N.A. 1,088,709 12.2 714,734 8.0 $ 893,418 10.0 % Fulton Bank of New Jersey 373,465 12.6 236,691 8.0 295,864 10.0 The Columbia Bank 211,355 13.7 123,260 8.0 154,075 10.0 Lafayette Ambassador Bank 172,345 14.1 97,792 8.0 122,240 10.0 Tier I Capital (to Risk-Weighted Assets): Corporation $ 1,544,495 10.2 % $ 911,151 6.0 % N/A N/A Fulton Bank, N.A 1,000,603 11.2 536,051 6.0 $ 714,734 8.0 % Fulton Bank of New Jersey 336,319 11.4 177,518 6.0 236,691 8.0 The Columbia Bank 192,090 12.5 92,445 6.0 123,260 8.0 Lafayette Ambassador Bank 162,092 13.3 73,344 6.0 97,792 8.0 Common Equity Tier I Capital (to Risk-weighted Assets): Corporation $ 1,541,214 10.2 % $ 683,363 4.5 % N/A N/A Fulton Bank, N.A 956,603 10.7 402,038 4.5 $ 580,721 6.5 % Fulton Bank of New Jersey 336,319 11.4 133,139 4.5 192,311 6.5 The Columbia Bank 192,090 12.5 69,334 4.5 100,149 6.5 Lafayette Ambassador Bank 162,092 13.3 55,008 4.5 79,456 6.5 Tier I Capital (to Average Assets): Corporation $ 1,544,495 9.0 % $ 688,500 4.0 % N/A N/A Fulton Bank, N.A 1,000,603 10.2 391,783 4.0 $ 489,729 5.0 % Fulton Bank of New Jersey 336,319 9.5 141,257 4.0 176,572 5.0 The Columbia Bank 192,090 9.7 79,618 4.0 99,523 5.0 Lafayette Ambassador Bank 162,092 11.0 59,152 4.0 73,940 5.0 N/A – Not applicable as "well capitalized" applies to banks only.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The components of the provision for income taxes are as follows: 2016 2015 2014 (in thousands) Current tax expense: Federal $ 33,872 $ 34,455 $ 32,957 State 1,698 2,042 1,126 35,570 36,497 34,083 Deferred tax expense: Federal 7,968 12,752 18,523 State 3,086 672 — 11,054 13,424 18,523 Income tax expense $ 46,624 $ 49,921 $ 52,606
Schedule of Effective Income Tax Rate Reconciliation	The differences between the effective income tax rate and the federal statutory income tax rate are as follows: 2016 2015 2014 Statutory tax rate 35.0 % 35.0 % 35.0 % Tax credit investments (7.0 ) (5.2 ) (4.9 ) Tax-exempt income (6.5 ) (6.0 ) (5.4 ) State income taxes, net of federal benefit 1.2 1.9 1.2 Bank owned life insurance (0.6 ) (0.6 ) (0.5 ) Change in valuation allowance 0.3 (0.9 ) (0.8 ) Executive compensation 0.1 0.1 0.1 Other, net (0.1 ) 0.7 (0.3 ) Effective income tax rate 22.4 % 25.0 % 24.4 %
Schedule of Deferred Tax Assets and Liabilities	The net deferred tax asset recorded by the Corporation is included in other assets and consists of the following tax effects of temporary differences as of December 31 : 2016 2015 (in thousands) Deferred tax assets: Allowance for credit losses $ 62,726 $ 62,846 Postretirement and defined benefit plans 12,659 13,070 Unrealized holding losses on securities available for sale 12,260 3,250 Deferred compensation 12,017 11,839 State loss carryforwards 9,820 11,170 Other accrued expenses 9,520 7,142 Other-than-temporary impairment of investments 5,187 5,501 Other 8,500 10,165 Total gross deferred tax assets 132,689 124,983 Deferred tax liabilities: Direct leasing 27,663 20,309 Mortgage servicing rights 13,369 14,582 Acquisition premiums/discounts 9,167 8,897 Premises and equipment 5,625 5,955 Intangible assets 1,810 1,614 Other 12,530 9,593 Total gross deferred tax liabilities 70,164 60,950 Net deferred tax asset, before valuation allowance 62,525 64,033 Valuation allowance (8,950 ) (8,359 ) Net deferred tax asset $ 53,575 $ 55,674
Summary of Income Tax Contingencies	The following summarizes the changes in unrecognized tax benefits for the years ended December 31 : 2016 2015 2014 (in thousands) Balance at beginning of year $ 2,373 $ 1,944 $ 1,651 Prior period tax positions — — 188 Current period tax positions 456 492 269 Lapse of statute of limitations (391 ) (63 ) (164 ) Balance at end of year $ 2,438 $ 2,373 $ 1,944

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Costs of Retirement Plans	The following summarizes the Corporation’s expense under its retirement plans for the years ended December 31 : 2016 2015 2014 (in thousands) 401(k) Retirement Plan $ 7,418 $ 6,423 $ 8,643 Pension Plan 4,310 4,102 1,514 $ 11,728 $ 10,525 $ 10,157
Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Summary of Pension Plan and Postretirement Plan Net Periodic Benefit Cost	The net periodic pension cost for the Pension Plan, as determined by consulting actuaries, consisted of the following components for the years ended December 31 : 2016 2015 2014 (in thousands) Service cost (1) $ 688 $ 579 $ 367 Interest cost 3,520 3,405 3,413 Expected return on assets (2,318 ) (3,009 ) (3,240 ) Net amortization and deferral 2,420 3,127 974 Net periodic pension cost $ 4,310 $ 4,102 $ 1,514 (1) The Pension Plan was curtailed effective January 1, 2008. Pension plan service cost for all years presented was related to administrative costs associated with the plan and not due to the accrual of additional participant benefits.
Schedule of Changes in Accumulated Postemployment Benefit Obligations	The following table summarizes the changes in the projected benefit obligation and fair value of plan assets for the plan years ended December 31 : 2016 2015 (in thousands) Projected benefit obligation at beginning of year $ 84,736 $ 93,079 Service cost 688 579 Interest cost 3,520 3,405 Benefit payments (5,172 ) (3,904 ) Change in assumptions 1,635 (7,722 ) Experience gain (44 ) (701 ) Projected benefit obligation at end of year $ 85,363 $ 84,736 Fair value of plan assets at beginning of year $ 46,971 $ 51,730 Employer contributions (1) 5,169 — Actual return on plan assets 1,716 (855 ) Benefit payments (5,172 ) (3,904 ) Fair value of plan assets at end of year $ 48,684 $ 46,971 (1) The Corporation funds at least the minimum amount required by the funding requirements of federal law and regulations. The corporation contributed $5.2 million to the Pension Plan during 2016 . There were no contributions to the Pension Plan in 2015 .
Schedule of Net Funded Status	The following table presents the funded status of the Pension Plan, included in other liabilities on the consolidated balance sheets, as of December 31 : 2016 2015 (in thousands) Projected benefit obligation $ (85,363 ) $ (84,736 ) Fair value of plan assets 48,684 46,971 Funded status $ (36,679 ) $ (37,765 )
Schedule Of Changes In Unrecognized Pension And Postretirement Items	The following table summarizes the changes in the unrecognized net loss included as a component of accumulated other comprehensive loss: Unrecognized Net Loss Gross of tax Net of tax (in thousands) Balance as of December 31, 2014 $ 38,082 $ 24,754 Recognized as a component of 2015 periodic pension cost (3,127 ) (2,033 ) Unrecognized gains arising in 2015 (4,559 ) (2,963 ) Balance as of December 31, 2015 30,396 19,758 Recognized as a component of 2016 periodic pension cost (2,420 ) (1,573 ) Unrecognized losses arising in 2016 2,193 1,425 Balance as of December 31, 2016 $ 30,169 $ 19,610
Schedule Of Rates Used To Calculate Net Periodic Pension Costs And Present Value Of Benefit Obligations	The following rates were used to calculate net periodic pension cost and the present value of benefit obligations as of December 31 : 2016 2015 2014 Discount rate-projected benefit obligation 4.00 % 4.25 % 3.75 % Expected long-term rate of return on plan assets 5.00 % 6.00 % 6.00 %
Schedule of Allocation of Plan Assets	The following table presents a summary of the fair values of the Pension Plan’s assets as of December 31 : 2016 2015 Estimated % of Total Estimated % of Total (dollars in thousands) Equity mutual funds $ 12,689 $ 8,269 Equity common trust funds 7,936 6,350 Equity securities 20,625 42.4 % 14,619 31.1 % Cash and money market funds 7,149 8,196 Fixed income mutual funds 10,540 9,578 Corporate debt securities 3,252 3,749 U.S. Government agency securities 496 2,881 Fixed income securities and cash 21,437 44.0 % 24,404 52.0 % Other alternative investment funds 6,622 13.6 % 7,948 16.9 % $ 48,684 100.0 % $ 46,971 100.0 %
Schedule of Expected Benefit Payments	Estimated future benefit payments are as follows (in thousands): Year 2017 $ 3,409 2018 3,742 2019 3,831 2020 4,213 2021 4,410 2022 – 2026 24,219 $ 43,824
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Summary of Pension Plan and Postretirement Plan Net Periodic Benefit Cost	The components of the net (benefit) expense for postretirement benefits other than pensions are as follows: 2016 2015 2014 (in thousands) Service cost $ — $ — $ 15 Interest cost 85 206 206 Net amortization and deferral (551 ) (258 ) (347 ) Net postretirement benefit cost $ (466 ) $ (52 ) $ (126 )
Schedule of Changes in Accumulated Postemployment Benefit Obligations	The following table summarizes the changes in the accumulated postretirement benefit obligation and fair value of plan assets for the years ended December 31 : 2016 2015 (in thousands) Accumulated postretirement benefit obligation at beginning of year $ 2,875 $ 5,552 Interest cost 85 206 Benefit payments (282 ) (251 ) Experience gain (732 ) 189 Change in assumptions (20 ) (2,821 ) Accumulated postretirement benefit obligation at end of year $ 1,926 $ 2,875 Fair value of plan assets at beginning of year $ 15 $ 8 Employer contributions 270 258 Benefit payments (282 ) (251 ) Fair value of plan assets at end of year $ 3 $ 15
Schedule of Net Funded Status	The following table presents the funded status of the Postretirement Plan, included in other liabilities on the consolidated balance sheets as of December 31 : 2016 2015 (in thousands) Accumulated postretirement benefit obligation $ (1,926 ) $ (2,875 ) Fair value of plan assets 3 15 Funded status $ (1,923 ) $ (2,860 )
Schedule Of Changes In Unrecognized Pension And Postretirement Items	The following table summarizes the changes in items recognized as a component of accumulated other comprehensive loss: Gross of tax Unrecognized Unrecognized Total Net of tax (in thousands) Balance as of December 31, 2014 $ (3,123 ) $ (336 ) $ (3,459 ) $ (2,249 ) Recognized as a component of 2015 postretirement benefit cost 258 — 258 168 Unrecognized gains arising in 2015 (2,469 ) (172 ) (2,641 ) (1,717 ) Balance as of December 31, 2015 (5,334 ) (508 ) (5,842 ) (3,798 ) Recognized as a component of 2016 postretirement benefit cost 465 86 551 358 Unrecognized gains arising in 2016 — (761 ) (761 ) (495 ) Balance as of December 31, 2016 $ (4,869 ) $ (1,183 ) $ (6,052 ) $ (3,935 )
Schedule Of Rates Used To Calculate Net Periodic Pension Costs And Present Value Of Benefit Obligations	The following rates were used to calculate net periodic postretirement benefit cost and the present value of benefit obligations as of December 31 : 2016 2015 2014 Discount rate-projected benefit obligation 4.25 % 4.25 % 3.75 % Expected long-term rate of return on plan assets 3.00 % 3.00 % 3.00 %
Schedule of Expected Benefit Payments	Estimated future benefit payments under the Postretirement Plan are as follows (in thousands): Year 2017 $ 237 2018 222 2019 207 2020 193 2021 178 2022 – 2026 695 $ 1,732

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Accumulated Other Comprehensive Income [Abstract]
Schedule of Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The following table presents the components of other comprehensive income (loss) for the years ended December 31 : Before-Tax Amount Tax Effect Net of Tax Amount (in thousands) 2016: Unrealized loss on securities $ (22,907 ) $ 8,016 $ (14,891 ) Reclassification adjustment for securities gains included in net income (1) (2,550 ) 893 (1,657 ) Non-credit related unrealized loss on other-than-temporarily impaired debt securities (285 ) 100 (185 ) Amortization of unrealized loss on derivative financial instruments (2) 25 (9 ) 16 Unrecognized pension and postretirement cost (1,432 ) 501 (931 ) Amortization of net unrecognized pension and postretirement items (3) 1,869 (653 ) 1,216 Total Other Comprehensive Loss $ (25,280 ) $ 8,848 $ (16,432 ) 2015: Unrealized loss on securities $ (11,872 ) $ 4,155 $ (7,717 ) Reclassification adjustment for securities gains included in net income (1) (9,066 ) 3,174 (5,892 ) Reclassification adjustment for loss on derivative financial instruments included in net income (2) 3,778 (1,322 ) 2,456 Non-credit related unrealized gains on other-than-temporarily impaired debt securities 368 (129 ) 239 Amortization of unrealized loss on derivative financial instruments (2) 115 (40 ) 75 Unrecognized pension and postretirement cost 7,200 (2,520 ) 4,680 Amortization of net unrecognized pension and postretirement items (3) 2,869 (1,005 ) 1,864 Total Other Comprehensive Loss $ (6,608 ) $ 2,313 $ (4,295 ) 2014: Unrealized gain on securities $ 51,901 $ (18,167 ) $ 33,734 Reclassification adjustment for securities gains included in net income (1) (2,041 ) 714 (1,327 ) Non-credit related unrealized gains on other-than-temporarily impaired debt securities 1,200 (420 ) 780 Amortization of unrealized loss on derivative financial instruments (2) 209 (73 ) 136 Reclass adjustment for postretirement plan gain included in net income (3) (1,452 ) 508 (944 ) Unrecognized pension and postretirement income (20,258 ) 7,090 (13,168 ) Amortization of net unrecognized pension and postretirement items (3) 627 (219 ) 408 Total Other Comprehensive Income $ 30,186 $ (10,567 ) $ 19,619 (1) Amounts reclassified out of accumulated other comprehensive loss. Before-tax amounts included in "Investment securities gains, net" on the consolidated statements of income. See "Note 3 - Investment Securities," for additional details. (2) Amounts reclassified out of accumulated other comprehensive loss. Before-tax amounts included in "Interest Expense" on the consolidated statements of income. (3) Amounts reclassified out of accumulated other comprehensive loss. Before-tax amounts included in "Salaries and employee benefits" on the consolidated statements of income. See "Note 13 - Employee Benefit Plans," for additional details.
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table presents changes in each component of accumulated other comprehensive income (loss), net of tax, for the years ended December 31 : Unrealized Gain (Losses) on Investment Securities Not Other-Than-Temporarily Impaired Unrealized Non-Credit Gains (Losses) on Other-Than-Temporarily Impaired Debt Securities Unrealized Effective Portions of Losses on Forward-Starting Interest Rate Swaps Unrecognized Pension and Postretirement Plan Income (Cost) Total (in thousands) Balance as of December 31, 2013 $ (27,510 ) $ 1,652 $ (2,682 ) $ (8,801 ) $ (37,341 ) Other comprehensive income (loss) before reclassifications 33,734 780 — (14,112 ) 20,402 Amounts reclassified from accumulated other comprehensive income (loss) (244 ) (1,083 ) 136 408 (783 ) Balance as of December 31, 2014 5,980 1,349 (2,546 ) (22,505 ) (17,722 ) Other comprehensive income (loss) before reclassifications (7,717 ) 239 — 4,680 (2,798 ) Amounts reclassified from accumulated other comprehensive income (loss) (4,762 ) (1,130 ) 75 1,864 (3,953 ) Reclassification adjustment for loss on derivative financial instruments — — 2,456 — 2,456 Balance as of December 31, 2015 (6,499 ) 458 (15 ) (15,961 ) (22,017 ) Other comprehensive income (loss) before reclassifications (14,891 ) (185 ) — (931 ) (16,007 ) Amounts reclassified from accumulated other comprehensive income (loss) (1,657 ) — 15 1,217 (425 ) Balance as of December 31, 2016 $ (23,047 ) $ 273 $ — $ (15,675 ) $ (38,449 )

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	The following table presents compensation expense and related tax benefits for all equity awards recognized in the consolidated statements of income: 2016 2015 2014 (in thousands) Compensation expense $ 6,556 $ 5,938 $ 5,865 Tax benefit (2,679 ) (2,011 ) (1,608 ) Stock-based compensation, net of tax $ 3,877 $ 3,927 $ 4,257
Schedule of Unrecognized Compensation Cost, Nonvested Awards	The following table presents compensation expense and related tax benefits for restricted stock awards, RSUs and PSUs recognized in the consolidated statements of income, and included as a component of total stock-based compensation in the preceding table: 2016 2015 2014 (in thousands) Compensation expense $ 6,165 $ 4,646 $ 4,345 Tax benefit (2,158 ) (1,626 ) (1,510 ) Restricted stock compensation, net of tax $ 4,007 $ 3,020 $ 2,835
Schedule of Share-based Compensation, Stock Options, Activity	The following table provides information about stock option activity for the year ended December 31, 2016 : Stock Weighted Weighted Aggregate Outstanding as of December 31, 2015 2,980,087 $ 12.31 Exercised (920,924 ) 11.70 Forfeited (263,685 ) 14.33 Expired (465,295 ) 16.19 Outstanding as of December 31, 2016 1,330,183 $ 10.98 4.7 years $ 10.4 Exercisable as of December 31, 2016 1,247,736 $ 10.87 4.5 years $ 9.9
Schedule of Nonvested Share Activity	The following table provides information about nonvested stock options, restricted stock, RSUs and PSUs granted under the Employee Equity Plan and Directors' Plan for the year ended December 31, 2016 : Nonvested Stock Options Restricted Stock/RSUs/PSUs Options Weighted Shares Weighted Nonvested as of December 31, 2015 349,852 $ 2.82 1,388,389 $ 12.16 Granted — — 447,130 13.86 Vested (247,727 ) 2.71 (292,583 ) 11.73 Forfeited (19,678 ) 2.84 (17,221 ) 12.20 Nonvested as of December 31, 2016 82,447 $ 3.14 1,525,715 $ 12.74
Schedule Of Options Exercised	The following table presents information about stock options exercised: 2016 2015 2014 (dollars in thousands) Number of options exercised 920,924 490,151 215,047 Total intrinsic value of options exercised $ 4,619 $ 1,442 $ 568 Cash received from options exercised $ 10,240 $ 4,936 $ 2,068 Tax deduction realized from options exercised $ 4,328 $ 1,389 $ 530
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The fair value of stock option awards under the Employee Equity Plan was estimated on the grant date using the Black-Scholes valuation methodology, which is dependent upon certain assumptions, as summarized in the table below. No options were granted in 2016 and 2015 under the Employee Equity Plan. 2014 Risk-free interest rate 2.44 % Volatility of Corporation’s stock 28.05 % Expected dividend yield 2.36 % Expected life of options 7 Years The fair value of certain PSUs with market-based performance conditions granted in 2016 under the Employee Equity Plan was estimated on the grant date using the Monte Carlo valuation methodology performed by a third-party valuation expert. This valuation is dependent upon certain assumptions, as summarized in the following table: 2016 2015 2014 Risk-free interest rate 0.92 % 0.86 % 0.91 % Volatility of Corporation’s stock 20.75 % 20.08 % 29.63 % Expected life of PSUs 3 Years 3 Years 3 Years
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions	The following table summarizes activity under the ESPP: 2016 2015 2014 ESPP shares purchased 109,665 121,890 132,640 Average purchase price per share (85% of market value) $ 12.37 $ 10.86 $ 10.31 Compensation expense recognized (in thousands) $ 240 $ 234 $ 241

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2016
Leases [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	Future minimum payments as of December 31, 2016 under non-cancelable operating leases with initial terms exceeding one year are as follows (in thousands): Year 2017 $ 16,330 2018 14,206 2019 12,286 2020 11,040 2021 9,396 Thereafter 44,395 $ 107,653

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Summary of Outstanding Commitments to Extend Credit and Letters of Credit	The following table presents commitments to extend credit and letters of credit: 2016 2015 (in thousands) Commercial and other $ 3,673,815 $ 3,518,960 Home equity 1,368,465 1,300,062 Commercial mortgage and construction 1,033,287 965,116 Total commitments to extend credit $ 6,075,567 $ 5,784,138 Standby letters of credit $ 356,359 $ 374,729 Commercial letters of credit 38,901 39,529 Total letters of credit $ 395,260 $ 414,258

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables summarizes the Corporation’s assets and liabilities measured at fair value on a recurring basis and reported on the consolidated balance sheets as of December 31: 2016 Level 1 Level 2 Level 3 Total (in thousands) Mortgage loans held for sale $ — $ 28,697 $ — $ 28,697 Available for sale investment securities: Equity securities 24,526 — — 24,526 U.S. Government sponsored agency securities — 134 — 134 State and municipal securities — 391,641 — 391,641 Corporate debt securities — 106,537 2,872 109,409 Collateralized mortgage obligations — 593,860 — 593,860 Mortgage-backed securities — 1,342,401 — 1,342,401 Auction rate securities — — 97,256 97,256 Total available for sale investment securities 24,526 2,434,573 100,128 2,559,227 Other assets 17,111 44,481 — 61,592 Total assets $ 41,637 $ 2,507,751 $ 100,128 $ 2,649,516 Other liabilities $ 17,032 $ 41,734 $ — $ 58,766 2015 Level 1 Level 2 Level 3 Total (in thousands) Mortgage loans held for sale $ — $ 16,886 $ — $ 16,886 Available for sale investment securities: Equity securities 21,514 — — 21,514 U.S. Government sponsored agency securities — 25,136 — 25,136 State and municipal securities — 262,765 — 262,765 Corporate debt securities — 93,619 3,336 96,955 Collateralized mortgage obligations — 821,509 — 821,509 Mortgage-backed securities — 1,158,835 — 1,158,835 Auction rate securities — — 98,059 98,059 Total available for sale investment securities 21,514 2,361,864 101,395 2,484,773 Other assets 16,129 34,465 — 50,594 Total assets $ 37,643 $ 2,413,215 $ 101,395 $ 2,552,253 Other liabilities $ 15,914 $ 33,010 $ — $ 48,924
Schedule of Changes in Assets and Liabilities Measured at Fair Value on a Recurring Basis using Level 3 Inputs	The following table presents the changes in available for sale investment securities measured at fair value on a recurring basis using unobservable inputs (Level 3) for the years ended December 31 : Pooled Trust Single-issuer ARCs (in thousands) Balance as of December 31, 2014 $ 4,088 $ 3,820 $ 100,941 Unrealized adjustments to fair value (1) 366 (230 ) (903 ) Sales (3,633 ) — — Settlements - calls (117 ) (970 ) (2,446 ) Discount accretion (2) 2 10 467 Balance as of December 31, 2015 706 2,630 98,059 Unrealized adjustments to fair value (1) (286 ) (190 ) (1,246 ) Discount accretion (2) 2 10 443 Balance as of December 31, 2016 $ 422 $ 2,450 $ 97,256 (1) Pooled trust preferred securities, single-issuer trust preferred securities and ARCs are classified as available for sale investment securities; as such, the unrealized adjustment to fair value was recorded as an unrealized holding gain (loss) and included as a component of available for sale investment securities on the consolidated balance sheets. (2) Included as a component of net interest income on the consolidated statements of income.
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis	The following table presents the Corporation's financial assets measured at fair value on a nonrecurring basis and reported on the consolidated balance sheets at December 31 : 2016 Level 1 Level 2 Level 3 Total (in thousands) Net loans $ — $ — $ 132,576 $ 132,576 Other financial assets — — 50,347 50,347 Total assets $ — $ — $ 182,923 $ 182,923 2015 Level 1 Level 2 Level 3 Total (in thousands) Net loans $ — $ — $ 138,491 $ 138,491 Other financial assets — — 52,043 52,043 Total assets $ — $ — $ 190,534 $ 190,534
Details of Book Value and Fair Value of Financial Instruments	As required by FASB ASC Section 825-10-50, the following table details the book values and the estimated fair values of the Corporation’s financial instruments as of December 31, 2016 and 2015 . A general description of the methods and assumptions used to estimate such fair values is also provided. 2016 2015 Book Value Estimated Book Value Estimated (in thousands) FINANCIAL ASSETS Cash and due from banks $ 118,763 $ 118,763 $ 101,120 $ 101,120 Interest-bearing deposits with other banks 233,763 233,763 230,300 230,300 Federal Reserve Bank and FHLB stock 57,489 57,489 62,216 62,216 Loans held for sale (1) 28,697 28,697 16,886 16,886 Securities available for sale (1) 2,559,227 2,559,227 2,484,773 2,484,773 Net Loans (1) 14,530,593 14,387,454 13,669,548 13,540,903 Accrued interest receivable 46,294 46,294 42,767 42,767 Other financial assets (1) 206,132 206,132 166,920 166,920 FINANCIAL LIABILITIES Demand and savings deposits $ 12,259,622 $ 12,259,622 $ 11,267,367 $ 11,267,367 Time deposits 2,753,242 2,769,757 2,864,950 2,862,868 Short-term borrowings 541,317 541,317 497,663 497,663 Accrued interest payable 9,632 9,632 10,724 10,724 Other financial liabilities (1) 216,080 216,080 190,927 190,927 FHLB advances and long-term debt 929,403 928,167 949,542 959,315 (1) These financial instruments, or certain financial instruments within these categories, are measured at fair value on the Corporation’s consolidated balance sheets. Descriptions of the fair value determinations for these financial instruments are disclosed above.

Condensed Financial Informati46

Condensed Financial Information - Parent Company Only (Tables)	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Information Parent Only	CONDENSED BALANCE SHEETS (in thousands) December 31 December 31 2016 2015 2016 2015 ASSETS LIABILITIES AND EQUITY Cash $ 8,568 $ — Long-term debt $ 362,005 $ 361,504 Other assets 5,648 4,337 Payable to non-bank subsidiaries 183,152 188,087 Receivable from subsidiaries 46,715 29,249 Other liabilities 77,538 77,263 Total Liabilities 622,695 626,854 Investments in: Bank subsidiaries 2,265,264 2,226,975 Non-bank subsidiaries 417,615 408,187 Shareholders’ equity 2,121,115 2,041,894 Total Assets $ 2,743,810 $ 2,668,748 Total Liabilities and Shareholders’ Equity $ 2,743,810 $ 2,668,748 CONDENSED STATEMENTS OF INCOME 2016 2015 2014 (in thousands) Income: Dividends from subsidiaries $ 115,000 $ 114,000 $ 139,150 Other (1) 148,577 141,241 120,543 263,577 255,241 259,693 Expenses 177,835 176,457 152,243 Income before income taxes and equity in undistributed net income of subsidiaries 85,742 78,784 107,450 Income tax benefit (10,543 ) (11,834 ) (10,549 ) 96,285 90,618 117,999 Equity in undistributed net income (loss) of: Bank subsidiaries 58,477 60,806 33,134 Non-bank subsidiaries 6,863 (1,922 ) 6,761 Net Income $ 161,625 $ 149,502 $ 157,894 (1) Consists primarily of management fees received from subsidiary banks. CONDENSED STATEMENTS OF CASH FLOWS 2016 2015 2014 (in thousands) Cash Flows From Operating Activities: Net Income $ 161,625 $ 149,502 $ 157,894 Adjustments to reconcile net income to net cash provided by operating activities: Stock-based compensation 6,556 5,938 5,865 Excess tax benefits from stock-based compensation (964 ) (201 ) (81 ) (Increase) decrease in other assets (16,585 ) 2,806 (7,120 ) Equity in undistributed net income of subsidiaries (65,340 ) (58,884 ) (39,895 ) Loss on redemption of trust preferred securities — 5,626 — (Decrease) increase in other liabilities and payable to non-bank subsidiaries (5,928 ) 106,490 37,354 Total adjustments (82,261 ) 61,775 (3,877 ) Net cash provided by operating activities 79,364 211,277 154,017 Cash Flows From Investing Activities — — — Cash Flows From Financing Activities: Repayments of long-term debt — (254,640 ) — Additions to long-term debt — 147,779 97,113 Net proceeds from issuance of common stock 16,167 10,607 8,201 Excess tax benefits from stock-based compensation 964 201 81 Dividends paid (69,382 ) (65,361 ) (64,028 ) Acquisition of treasury stock (18,545 ) (50,000 ) (175,255 ) Deferred accelerated stock repurchase payment — — (20,000 ) Net cash used in financing activities (70,796 ) (211,414 ) (153,888 ) Net Increase (Decrease) in Cash and Cash Equivalents 8,568 (137 ) 129 Cash and Cash Equivalents at Beginning of Year — 137 8 Cash and Cash Equivalents at End of Year $ 8,568 $ — $ 137

Summary of Significant Accoun47

Summary of Significant Accounting Policies Narrative (Details)	12 Months Ended
	Dec. 31, 2016USD ($)subsidiarytrusts	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Property, Plant and Equipment [Line Items]
Number of banks owned | subsidiarytrusts	6
Days past due for nonaccrual status	90 days
Period for which change in loans are evaluated individually for impairment quarterly	12 months
Individual impairment, outstanding commitment threshold	$ 1,000,000
Financing Receivable, Obtaining Certified Thrid-party Appraisal For Impaired Loans, Period	12 months
Collective impairment review, outstanding commitment threshold (less than $1.0 million)	$ 1,000,000
Impaired loans with principal balances	62.00%	69.00%
Impaired loans balances, real estate as collateral	$ 1,000,000
Threshold of companies current loan to value ratio of original appraisals used	70.00%
Foreign currency open position	$ 500,000
Award vesting period	3 years
Goodwill, impairment	$ 0	$ 0	$ 0
Variable Interest Entity [Abstract]
Subsidiary trusts owned by parent | subsidiarytrusts	3
Amortization period of LIH investments	10 years
Income taxes	$ (46,624,000)	(49,921,000)	$ (52,606,000)
Stock Options
Property, Plant and Equipment [Line Items]
Term of award	P10Y
LIH Low Income Housing
Variable Interest Entity [Abstract]
Income taxes	$ 14,600,000	10,400,000
Other Assets
Variable Interest Entity [Abstract]
Investments in low income housing	186,400,000	$ 175,000,000
Other Noncurrent Liabilities
Variable Interest Entity [Abstract]
Investments, in low income housing, additional commitments	$ 40,600,000
Building and Building Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	50 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	8 years
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Consumer Loan
Property, Plant and Equipment [Line Items]
Number of days closed end consumer loans are charged off when they become past due	120 days
Number of days open end consumer loans are charged off when they become past due	180 days

Summary of Significant Accoun48

Summary of Significant Accounting Policies Net income (Loss) Per Common Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average common shares outstanding (basic)	173,325	175,721	186,219
Impact of common stock equivalents	1,093	1,053	962
Weighted average common shares outstanding (diluted)	174,418	176,774	187,181
Stock Options
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	500	1,700	2,800

Restrictions on Cash and Due 49

Restrictions on Cash and Due from Banks (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Subsidiaries
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash reserves due from subsidiary	$ 113.3	$ 91.1

Investment Securities Schedule

Investment Securities Schedule of Amortized Cost and Fair Values of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Statement [Line Items]
Available-for-sale securities, amortized cost basis	$ 2,594,255	$ 2,494,059
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	24,807	28,740
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	(59,835)	(38,026)
Available-for-sale Securities	2,559,227	2,484,773
U.S. Government sponsored agency securities
Statement [Line Items]
Available-for-sale securities, amortized cost basis	132	25,154
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	2	35
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	0	(53)
Available-for-sale Securities	134	25,136
State and municipal securities
Statement [Line Items]
Available-for-sale securities, amortized cost basis	405,274	256,746
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	2,043	6,019
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	(15,676)	0
Available-for-sale Securities	391,641	262,765
Corporate debt securities
Statement [Line Items]
Available-for-sale securities, amortized cost basis	112,016	100,336
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	1,978	2,695
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	(4,585)	(6,076)
Available-for-sale Securities	109,409	96,955
Collateralized mortgage obligations
Statement [Line Items]
Available-for-sale securities, amortized cost basis	604,095	835,439
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	1,943	3,042
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	(12,178)	(16,972)
Available-for-sale Securities	593,860	821,509
Mortgage-backed securities
Statement [Line Items]
Available-for-sale securities, amortized cost basis	1,353,292	1,154,935
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	6,546	10,104
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	(17,437)	(6,204)
Available-for-sale Securities	1,342,401	1,158,835
Auction rate securities
Statement [Line Items]
Available-for-sale securities, amortized cost basis	107,215	106,772
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	0	0
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	(9,959)	(8,713)
Available-for-sale Securities	97,256	98,059
Debt securities
Statement [Line Items]
Available-for-sale securities, amortized cost basis	2,582,024	2,479,382
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	12,512	21,895
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	(59,835)	(38,018)
Available-for-sale Securities	2,534,701	2,463,259
Equity securities
Statement [Line Items]
Available-for-sale securities, amortized cost basis	12,231	14,677
Available-for-sale Securities, Gross Unrealized Gain, Accumulated Investments	12,295	6,845
Available-for-sale Securities, Gross Unrealized Loss, Accumulated Investments	0	(8)
Available-for-sale Securities	$ 24,526	$ 21,514

Investment Securities Narrative

Investment Securities Narrative (Details)	12 Months Ended
	Dec. 31, 2016USD ($)Security	Dec. 31, 2014USD ($)	Dec. 31, 2015USD ($)
Available-for-sale securities pledged as collateral	$ 1,800,000,000		$ 1,700,000,000
Available-for-sale securities, amortized cost basis	2,594,255,000		2,494,059,000
Single bank stock investment, cost basis	5,800,000
Bank stock investment, fair value	$ 11,900,000
Percent ownership in an individual financial institution	50.50%
Individual bank stock investment percent to total portfolio	10.00%
Other than temporary impairment losses, investments, portion recognized in earnings, net, available-for-sale securities	$ 0	$ 30,000
Securities available for sale	2,559,227,000		2,484,773,000
Domestic corporate debt securities	109,400,000
Equity Securities Financial Institution
Available-for-sale securities, equity securities	23,500,000		20,600,000
Available-for-sale securities, amortized cost basis	11,500,000
Equity Securities, Miscellaneous
Available-for-sale securities, equity securities	1,003,000		900,000
Auction rate securities
Available-for-sale securities, amortized cost basis	107,215,000		106,772,000
Securities available for sale	97,256,000		$ 98,059,000
Auction rate securities | External Credit Rated AAA
Carrying value auction rate securities rated AAA	$ 5,500,000
Percentage auction rate securities rated AAA	6.00%
Auction rate securities | External Credit Rating, Rated Above Investment Grade
Carrying value auction rate securities rated AAA	$ 91,800,000
Percentage auction rate securities rated AAA	94.00%
Single-issuer trust preferred securities
Unrealized gain (loss) on securities	$ (3,900,000)
Number of securities | Security	19
Single-issuer trust preferred securities | External Credit Rating, Rated Below Investment Grade
Available-for-sale securities, amortized cost basis	$ 11,500,000
Securities available for sale	$ 10,000,000
Number of trust preferred securities	6
Single-issuer trust preferred securities | External Credit Rating, BBB
Available-for-sale securities, amortized cost basis	$ 3,700,000
Securities available for sale	$ 2,500,000

Investment Securities Schedul52

Investment Securities Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturities (Details) $ in Thousands	Dec. 31, 2016USD ($)
Amortized Cost
Due in one year or less	$ 54,727
Due from one year to five years	28,720
Due from five years to ten years	95,658
Due after ten years	445,532
Amortized cost, before securities without debt maturities	624,637
Amortized cost basis	2,582,024
Estimated Fair Value
Due in one year or less	55,027
Due from one year to five years	29,342
Due from five years to ten years	96,933
Due after ten years	417,138
Available for sale securities, debt maturities, before securities without single maturities	598,440
Estimated Fair Value	2,534,701
Collateralized mortgage obligations
Amortized Cost
Available-for-sale securities, amortized cost without single maturity date	604,095
Estimated Fair Value
Available-for-sale securities, debt maturities, without single maturity date, fair value	593,860
Mortgage-backed securities
Amortized Cost
Available-for-sale securities, amortized cost without single maturity date	1,353,292
Estimated Fair Value
Available-for-sale securities, debt maturities, without single maturity date, fair value	$ 1,342,401

Investment Securities Summary o

Investment Securities Summary of Gains and Losses from Equity and Debt Securities, and Losses from Other-than-Temporary Impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Gross Realized Gains	$ 2,586	$ 9,067	$ 2,393
Gross Realized Losses	(36)	(1)	(322)
Other- than- temporary Impairment Losses	0	0	(30)
Net Gains	2,550	9,066	2,041
Equity securities
Gross Realized Gains	2,005	6,496	335
Gross Realized Losses	(10)	(1)	0
Other- than- temporary Impairment Losses	0	0	(12)
Net Gains	1,995	6,495	323
Debt securities
Gross Realized Gains	581	2,571	2,058
Gross Realized Losses	(26)	0	(322)
Other- than- temporary Impairment Losses	0	0	(18)
Net Gains	$ 555	$ 2,571	$ 1,718

Investment Securities Other Tha

Investment Securities Other Than Temporary Impairment Charges (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2014
Investment [Line Items]
Other than temporary impairment losses, investments, portion recognized in earnings, net, available-for-sale securities	$ 0	$ 30,000
Equity securities - financial institution stocks
Investment [Line Items]
Other than temporary impairment losses, investments, portion recognized in earnings, net, available-for-sale securities		12,000
Pooled trust preferred securities
Investment [Line Items]
Other than temporary impairment losses, investments, portion recognized in earnings, net, available-for-sale securities		$ 18,000

Investment Securities Summary55

Investment Securities Summary of Cumulative Other-than-Temporary Impairment Charges Recognized in Earnings for Pooled Trust Preferred Securities Held (Details) - Pooled trust preferred securities - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance of cumulative credit losses on debt securities, beginning of year	$ (11,510)	$ (16,242)	$ (20,691)
Additions for credit losses recorded which were not previously recognized as components of earnings	0	0	(18)
Reductions for securities sold during the period	0	4,730	4,460
Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security	0	2	7
Balance of cumulative credit losses on debt securities, end of year	$ (11,510)	$ (11,510)	$ (16,242)

Investment Securities Gross Unr

Investment Securities Gross Unrealized Losses and Fair Values of Investments by Category and Length of Time in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Estimated Fair Value, Less than 12 Months		$ 800,776
Unrealized Losses, Less than 12 Months		(6,400)
Estimated Fair Value, 12 Months or Longer		662,705
Unrealized Losses, 12 Months or Longer		(31,626)
Estimated Fair Value, Total		1,463,481
Unrealized Losses, Total		(38,026)
US Government Agencies Debt Securities [Member]
Estimated Fair Value, Less than 12 Months		9,957
Unrealized Losses, Less than 12 Months		(53)
Estimated Fair Value, 12 Months or Longer		0
Unrealized Losses, 12 Months or Longer		0
Estimated Fair Value, Total		9,957
Unrealized Losses, Total		(53)
State and municipal securities
Estimated Fair Value, Less than 12 Months	$ 247,509
Unrealized Losses, Less than 12 Months	(15,676)
Estimated Fair Value, 12 Months or Longer	0
Unrealized Losses, 12 Months or Longer	0
Estimated Fair Value, Total	247,509
Unrealized Losses, Total	(15,676)
Corporate debt securities
Estimated Fair Value, Less than 12 Months	11,922	12,892
Unrealized Losses, Less than 12 Months	(110)	(97)
Estimated Fair Value, 12 Months or Longer	34,629	33,036
Unrealized Losses, 12 Months or Longer	(4,475)	(5,979)
Estimated Fair Value, Total	46,551	45,928
Unrealized Losses, Total	(4,585)	(6,076)
Collateralized mortgage obligations
Estimated Fair Value, Less than 12 Months	166,905	166,007
Unrealized Losses, Less than 12 Months	(3,899)	(1,467)
Estimated Fair Value, 12 Months or Longer	258,237	467,778
Unrealized Losses, 12 Months or Longer	(8,279)	(15,505)
Estimated Fair Value, Total	425,142	633,785
Unrealized Losses, Total	(12,178)	(16,972)
Mortgage-backed securities
Estimated Fair Value, Less than 12 Months	1,137,510	611,920
Unrealized Losses, Less than 12 Months	(17,437)	(4,783)
Estimated Fair Value, 12 Months or Longer	0	63,818
Unrealized Losses, 12 Months or Longer	0	(1,421)
Estimated Fair Value, Total	1,137,510	675,738
Unrealized Losses, Total	(17,437)	(6,204)
Auction rate securities
Estimated Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Estimated Fair Value, 12 Months or Longer	97,256	98,059
Unrealized Losses, 12 Months or Longer	(9,959)	(8,713)
Estimated Fair Value, Total	97,256	98,059
Unrealized Losses, Total	(9,959)	(8,713)
Debt securities
Estimated Fair Value, Less than 12 Months	1,563,846	800,776
Unrealized Losses, Less than 12 Months	(37,122)	(6,400)
Estimated Fair Value, 12 Months or Longer	390,122	662,691
Unrealized Losses, 12 Months or Longer	(22,713)	(31,618)
Estimated Fair Value, Total	1,953,968	1,463,467
Unrealized Losses, Total	$ (59,835)	(38,018)
Equity securities
Estimated Fair Value, Less than 12 Months		0
Unrealized Losses, Less than 12 Months		0
Estimated Fair Value, 12 Months or Longer		14
Unrealized Losses, 12 Months or Longer		(8)
Estimated Fair Value, Total		14
Unrealized Losses, Total		$ (8)

Investment Securities Summary57

Investment Securities Summary of Amortized Cost and Fair Values of Corporate Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amortized Cost	$ 2,582,024
Estimated Fair Value	2,534,701
Corporate Debt Securities Issued by Financial Institutions [Member]
Amortized Cost	108,014	$ 96,301
Estimated Fair Value	105,407	92,920
Single-issuer trust preferred securities
Amortized Cost	43,746	44,648
Estimated Fair Value	39,829	39,106
Subordinated debt
Amortized Cost	46,231	39,610
Estimated Fair Value	46,723	40,779
Senior debt
Amortized Cost	18,037	12,043
Estimated Fair Value	18,433	12,329
Pooled trust preferred securities
Amortized Cost	0	0
Estimated Fair Value	422	706
Other corporate debt securities
Amortized Cost	4,002	4,035
Estimated Fair Value	4,002	4,035
Corporate debt securities
Amortized Cost	112,016	100,336
Estimated Fair Value	$ 109,409	$ 96,955

Loans and Allowance for Credi58

Loans and Allowance for Credit Losses Summary Of Gross Loans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	$ 14,718,662,000	$ 13,854,118,000
Unearned income	(19,390,000)	(15,516,000)
Loans, net of unearned income	14,699,272,000	13,838,602,000
Loans and leases receivable, related parties	154,400,000	191,600,000
Proceeds from related party debt	26,600,000
Repayments of related party debt	63,800,000
Loans serviced by unrelated third party	4,700,000,000	4,800,000,000
Real estate – commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	6,018,582,000	5,462,330,000
Loans, net of unearned income	6,018,582,000	5,462,330,000
Commercial – industrial, financial and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	4,087,486,000	4,088,962,000
Loans, net of unearned income	4,087,486,000	4,088,962,000
Real estate – home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	1,625,115,000	1,684,439,000
Loans, net of unearned income	1,625,115,000	1,684,439,000
Real estate – residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	1,601,994,000	1,376,160,000
Loans, net of unearned income	1,601,994,000	1,376,160,000
Real estate – construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	843,649,000	799,988,000
Loans, net of unearned income	843,649,000	799,988,000
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	291,470,000	268,588,000
Loans, net of unearned income	291,470,000	268,588,000
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	246,704,000	170,914,000
Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans before unearned income	$ 3,662,000	$ 2,737,000

Loans and Allowance for Credi59

Loans and Allowance for Credit Losses Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Receivables [Abstract]
Allowance for loan losses	$ 168,679	$ 169,054	$ 184,144
Reserve for unfunded lending commitments	2,646	2,358	1,787
Allowance for credit losses	$ 171,325	$ 171,412	$ 185,931	$ 204,917

Loans and Allowance for Credi60

Loans and Allowance for Credit Losses Activity in the Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Receivables [Abstract]
Balance at beginning of year	$ 171,412	$ 185,931	$ 204,917
Loans charged off	(33,927)	(32,157)	(44,593)
Recoveries of loans previously charged off	20,658	15,388	13,107
Net loans charged off	(13,269)	(16,769)	(31,486)
Provision for credit losses	13,182	2,250	12,500
Balance at end of year	$ 171,325	$ 171,412	$ 185,931

Loans and Allowance for Credi61

Loans and Allowance for Credit Losses Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	$ 169,054	$ 184,144
Loans charged off	(33,927)	(32,157)	$ (44,593)
Recoveries of loans previously charged off	20,658	15,388	13,107
Loans Charged Off, Net Of Recoveries	(13,269)	(16,769)	(31,486)
Provision for loan losses	12,894	1,679
Financing receivable, allowance for credit losses, collectively evaluated for impairment	121,562	117,464
Financing receivable, allowance for credit losses, individually evaluated for impairment	47,117	51,590
Loans and Leases Receivable, Allowance, Ending Balance	168,679	169,054	184,144
Measured for impairment under FASB ASC Subtopic 450-20	14,519,579	13,648,521
Evaluated for impairment under FASB ASC Section 310-10-35	179,693	190,081
Loans, net of unearned income	14,699,272	13,838,602
Change in provision allocated to commitments to lend to borrowers	288	570
Provision for credit losses	13,182	2,250	12,500
Real estate – commercial mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	47,866	53,493
Loans charged off	(3,580)	(4,218)
Recoveries of loans previously charged off	3,373	2,801
Loans Charged Off, Net Of Recoveries	(207)	(1,417)
Provision for loan losses	(817)	(4,210)
Financing receivable, allowance for credit losses, collectively evaluated for impairment	36,680	35,395
Financing receivable, allowance for credit losses, individually evaluated for impairment	10,162	12,471
Loans and Leases Receivable, Allowance, Ending Balance	46,842	47,866	53,493
Measured for impairment under FASB ASC Subtopic 450-20	5,963,689	5,404,036
Evaluated for impairment under FASB ASC Section 310-10-35	54,893	58,294
Loans, net of unearned income	6,018,582	5,462,330
Commercial – industrial, financial and agricultural
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	57,098	51,378
Loans charged off	(15,276)	(15,639)
Recoveries of loans previously charged off	8,981	5,264
Loans Charged Off, Net Of Recoveries	(6,295)	(10,375)
Provision for loan losses	3,550	16,095
Financing receivable, allowance for credit losses, collectively evaluated for impairment	40,700	42,515
Financing receivable, allowance for credit losses, individually evaluated for impairment	13,653	14,583
Loans and Leases Receivable, Allowance, Ending Balance	54,353	57,098	51,378
Measured for impairment under FASB ASC Subtopic 450-20	4,038,511	4,040,810
Evaluated for impairment under FASB ASC Section 310-10-35	48,975	48,152
Loans, net of unearned income	4,087,486	4,088,962
Real estate – home equity
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	22,405	28,271
Loans charged off	(4,912)	(3,604)
Recoveries of loans previously charged off	1,171	1,362
Loans Charged Off, Net Of Recoveries	(3,741)	(2,242)
Provision for loan losses	8,137	(3,624)
Financing receivable, allowance for credit losses, collectively evaluated for impairment	17,290	14,412
Financing receivable, allowance for credit losses, individually evaluated for impairment	9,511	7,993
Loans and Leases Receivable, Allowance, Ending Balance	26,801	22,405	28,271
Measured for impairment under FASB ASC Subtopic 450-20	1,605,910	1,668,673
Evaluated for impairment under FASB ASC Section 310-10-35	19,205	15,766
Loans, net of unearned income	1,625,115	1,684,439
Real estate – residential mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	21,375	29,072
Loans charged off	(2,326)	(3,612)
Recoveries of loans previously charged off	1,072	1,322
Loans Charged Off, Net Of Recoveries	(1,254)	(2,290)
Provision for loan losses	2,808	(5,407)
Financing receivable, allowance for credit losses, collectively evaluated for impairment	11,032	7,953
Financing receivable, allowance for credit losses, individually evaluated for impairment	11,897	13,422
Loans and Leases Receivable, Allowance, Ending Balance	22,929	21,375	29,072
Measured for impairment under FASB ASC Subtopic 450-20	1,555,946	1,325,735
Evaluated for impairment under FASB ASC Section 310-10-35	46,048	50,425
Loans, net of unearned income	1,601,994	1,376,160
Real estate – construction
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	6,529	9,756
Loans charged off	(1,218)	(201)
Recoveries of loans previously charged off	3,924	2,824
Loans Charged Off, Net Of Recoveries	2,706	2,623
Provision for loan losses	(2,780)	(5,850)
Financing receivable, allowance for credit losses, collectively evaluated for impairment	4,587	4,134
Financing receivable, allowance for credit losses, individually evaluated for impairment	1,868	2,395
Loans and Leases Receivable, Allowance, Ending Balance	6,455	6,529	9,756
Measured for impairment under FASB ASC Subtopic 450-20	833,117	784,002
Evaluated for impairment under FASB ASC Section 310-10-35	10,532	15,986
Loans, net of unearned income	843,649	799,988
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	2,585	3,015
Loans charged off	(2,800)	(2,227)
Recoveries of loans previously charged off	1,295	1,130
Loans Charged Off, Net Of Recoveries	(1,505)	(1,097)
Provision for loan losses	2,494	667
Financing receivable, allowance for credit losses, collectively evaluated for impairment	3,548	2,563
Financing receivable, allowance for credit losses, individually evaluated for impairment	26	22
Loans and Leases Receivable, Allowance, Ending Balance	3,574	2,585	3,015
Measured for impairment under FASB ASC Subtopic 450-20	291,430	268,555
Evaluated for impairment under FASB ASC Section 310-10-35	40	33
Loans, net of unearned income	291,470	268,588
Leasing and other and overdrafts
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	2,468	1,799
Loans charged off	(3,815)	(2,656)
Recoveries of loans previously charged off	842	685
Loans Charged Off, Net Of Recoveries	(2,973)	(1,971)
Provision for loan losses	3,697	2,640
Financing receivable, allowance for credit losses, collectively evaluated for impairment	3,192	1,764
Financing receivable, allowance for credit losses, individually evaluated for impairment	0	704
Loans and Leases Receivable, Allowance, Ending Balance	3,192	2,468	1,799
Measured for impairment under FASB ASC Subtopic 450-20	230,976	156,710
Evaluated for impairment under FASB ASC Section 310-10-35	0	1,425
Loans, net of unearned income	230,976	158,135
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance, Beginning Balance	8,728	7,360
Loans charged off	0	0
Recoveries of loans previously charged off		0
Loans Charged Off, Net Of Recoveries	0	0
Provision for loan losses	(4,195)	1,368
Financing receivable, allowance for credit losses, collectively evaluated for impairment	4,533	8,728
Loans and Leases Receivable, Allowance, Ending Balance	$ 4,533	$ 8,728	$ 7,360

Loans and Allowance for Credi62

Loans and Allowance for Credit Losses Total Impaired Loans by Class Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Impaired Financing Receivables [Line Items]
No Related Allowance, Unpaid Principal Balance	$ 69,013	$ 60,590
No Related Allowance, Recorded Investment	60,457	49,953
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	150,797	174,199
Impaired Financing Receivable, with Related Allowance, Recorded Investment	119,236	140,128
Unpaid Principal Balance	219,810	234,789
Recorded Investment	179,693	190,081
Related Allowance	47,117	51,590
No Related Allowance, Average Recorded Investment	55,940	59,005	$ 61,435
No Related Allowance, Interest Income Recognized	572	684	698
Related Allowance, Average Recorded Investment	125,972	134,747	135,416
Related Allowance, Interest Income, Accrual Method	1,754	1,897	2,079
Impaired Financing Receivable, Average Recorded Investment	181,912	193,752	196,851
Interest income on impaired loans	2,326	2,581	2,777
Leasing and other and overdrafts
Impaired Financing Receivables [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	1,658
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	1,425
Related Allowance	0	704
Related Allowance, Average Recorded Investment	854	285	0
Related Allowance, Interest Income, Accrual Method	0	0	0
Consumer - direct
Impaired Financing Receivables [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	21	19
Impaired Financing Receivable, with Related Allowance, Recorded Investment	21	19
Related Allowance	14	14
Related Allowance, Average Recorded Investment	18	17	16
Related Allowance, Interest Income, Accrual Method	1	1	1
Consumer - indirect:
Impaired Financing Receivables [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	19	14
Impaired Financing Receivable, with Related Allowance, Recorded Investment	19	14
Related Allowance	12	8
Related Allowance, Average Recorded Investment	15	16	7
Related Allowance, Interest Income, Accrual Method	1	1	0
Construction - other
Impaired Financing Receivables [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,096	331
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,096	193
Related Allowance	423	68
Related Allowance, Average Recorded Investment	682	263	387
Related Allowance, Interest Income, Accrual Method	0	0	0
Construction - commercial
Impaired Financing Receivables [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	681	820
Impaired Financing Receivable, with Related Allowance, Recorded Investment	435	638
Related Allowance	145	217
No Related Allowance, Average Recorded Investment	0	915	1,907
No Related Allowance, Interest Income Recognized	0	0	0
Related Allowance, Average Recorded Investment	524	931	1,900
Related Allowance, Interest Income, Accrual Method	0	0	0
Construction - commercial residential
Impaired Financing Receivables [Line Items]
No Related Allowance, Unpaid Principal Balance	6,271	9,916
No Related Allowance, Recorded Investment	4,795	8,865
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	10,103	9,949
Impaired Financing Receivable, with Related Allowance, Recorded Investment	4,206	6,290
Related Allowance	1,300	2,110
No Related Allowance, Average Recorded Investment	6,285	11,685	15,421
No Related Allowance, Interest Income Recognized	48	148	227
Related Allowance, Average Recorded Investment	5,295	6,455	8,723
Related Allowance, Interest Income, Accrual Method	41	79	136
Real estate – residential mortgage
Impaired Financing Receivables [Line Items]
No Related Allowance, Unpaid Principal Balance	4,689	4,790
No Related Allowance, Recorded Investment	4,689	4,790
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	48,885	55,242
Impaired Financing Receivable, with Related Allowance, Recorded Investment	41,359	45,635
Related Allowance	11,897	13,422
No Related Allowance, Average Recorded Investment	5,598	5,389	1,532
No Related Allowance, Interest Income Recognized	126	124	31
Related Allowance, Average Recorded Investment	42,191	46,252	50,281
Related Allowance, Interest Income, Accrual Method	908	1,041	1,178
Real estate – home equity
Impaired Financing Receivables [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	23,971	20,347
Impaired Financing Receivable, with Related Allowance, Recorded Investment	19,205	15,766
Related Allowance	9,511	7,993
No Related Allowance, Average Recorded Investment	0	0	180
No Related Allowance, Interest Income Recognized	0	0	1
Related Allowance, Average Recorded Investment	17,912	13,887	13,976
Related Allowance, Interest Income, Accrual Method	285	144	108
Commercial - unsecured
Impaired Financing Receivables [Line Items]
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,122	971
Impaired Financing Receivable, with Related Allowance, Recorded Investment	823	821
Related Allowance	455	498
No Related Allowance, Average Recorded Investment	0	17	0
No Related Allowance, Interest Income Recognized	0	0	0
Related Allowance, Average Recorded Investment	887	1,749	895
Related Allowance, Interest Income, Accrual Method	4	6	3
Commercial - secured
Impaired Financing Receivables [Line Items]
No Related Allowance, Unpaid Principal Balance	29,296	18,012
No Related Allowance, Recorded Investment	25,526	13,702
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	27,767	39,659
Impaired Financing Receivable, with Related Allowance, Recorded Investment	22,626	33,629
Related Allowance	13,198	14,085
No Related Allowance, Average Recorded Investment	19,825	15,654	18,928
No Related Allowance, Interest Income Recognized	104	97	119
Related Allowance, Average Recorded Investment	25,857	25,660	20,991
Related Allowance, Interest Income, Accrual Method	130	150	129
Real estate – commercial mortgage
Impaired Financing Receivables [Line Items]
No Related Allowance, Unpaid Principal Balance	28,757	27,872
No Related Allowance, Recorded Investment	25,447	22,596
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	37,132	45,189
Impaired Financing Receivable, with Related Allowance, Recorded Investment	29,446	35,698
Related Allowance	10,162	12,471
No Related Allowance, Average Recorded Investment	24,232	25,345	23,467
No Related Allowance, Interest Income Recognized	294	315	320
Related Allowance, Average Recorded Investment	31,737	39,232	38,240
Related Allowance, Interest Income, Accrual Method	$ 384	$ 475	$ 524

Loans and Allowance for Credi63

Loans and Allowance for Credit Losses Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 14,718,662	$ 13,854,118
Commercial – industrial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	4,087,486	4,088,962
Real estate – commercial mortgage
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	6,018,582	5,462,330
Commercial - secured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	3,933,552	3,926,113
Commercial - unsecured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	153,934	162,849
Construction - commercial residential
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	142,189	179,303
Construction - commercial
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	644,490	559,991
Total real estate - construction (excluding construction - other)
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	786,679	739,294
Commercial Loans, Commerical Mortgages, Constructions Loans
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 10,892,747	$ 10,290,586
% of Total	100.00%	100.00%
Pass | Commercial – industrial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 3,832,074	$ 3,853,434
Pass | Real estate – commercial mortgage
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	5,763,122	5,204,263
Pass | Commercial - secured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	3,686,152	3,696,692
Pass | Commercial - unsecured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	145,922	156,742
Pass | Construction - commercial residential
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	113,570	140,337
Pass | Construction - commercial
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	635,963	552,710
Pass | Total real estate - construction (excluding construction - other)
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	749,533	693,047
Pass | Commercial Loans, Commerical Mortgages, Constructions Loans
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 10,344,729	$ 9,750,744
% of Total	95.00%	94.80%
Special Mention | Commercial – industrial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 133,354	$ 95,472
Special Mention | Real estate – commercial mortgage
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	132,484	102,625
Special Mention | Commercial - secured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	128,873	92,711
Special Mention | Commercial - unsecured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	4,481	2,761
Special Mention | Construction - commercial residential
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	15,447	17,154
Special Mention | Construction - commercial
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	3,412	3,684
Special Mention | Total real estate - construction (excluding construction - other)
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	18,859	20,838
Special Mention | Commercial Loans, Commerical Mortgages, Constructions Loans
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 284,697	$ 218,935
% of Total	2.60%	2.10%
Substandard or Lower | Commercial – industrial, financial and agricultural
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 122,058	$ 140,056
Substandard or Lower | Real estate – commercial mortgage
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	122,976	155,442
Substandard or Lower | Commercial - secured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	118,527	136,710
Substandard or Lower | Commercial - unsecured
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	3,531	3,346
Substandard or Lower | Construction - commercial residential
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	13,172	21,812
Substandard or Lower | Construction - commercial
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	5,115	3,597
Substandard or Lower | Total real estate - construction (excluding construction - other)
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	18,287	25,409
Substandard or Lower | Commercial Loans, Commerical Mortgages, Constructions Loans
Financing Receivable, Recorded Investment [Line Items]
Carrying Amount	$ 263,321	$ 320,907
% of Total	2.40%	3.10%

Loans and Allowance for Credi64

Loans and Allowance for Credit Losses Summary of Delinquency and Non-Performing Status by Portfolio Segment (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Loans, net of unearned income	$ 14,699,272	$ 13,838,602
Period for which change in loans evaluated individually for impairment	90
Minimum
Days outstanding	30
Maximum
Days outstanding	89
Real estate – home equity
Loans, net of unearned income	$ 1,625,115	1,684,439
Real estate – residential mortgage
Loans, net of unearned income	1,601,994	1,376,160
Construction - other
Loans, net of unearned income	56,970	60,694
Consumer - direct
Loans, net of unearned income	96,887	98,719
Consumer - indirect:
Loans, net of unearned income	194,583	169,869
Consumer
Loans, net of unearned income	291,470	268,588
Leasing and other and overdrafts
Loans, net of unearned income	230,976	158,135
Commercial Loans, Commerical Mortgages, Constructions Loans
Loans, net of unearned income	$ 3,806,525	$ 3,548,016
Ratio of nonperforming loans to all loans	100.00%	100.00%
Performing | Real estate – home equity
Loans, net of unearned income	$ 1,602,687	$ 1,660,773
Performing | Real estate – residential mortgage
Loans, net of unearned income	1,557,995	1,329,371
Performing | Construction - other
Loans, net of unearned income	55,874	59,997
Performing | Consumer - direct
Loans, net of unearned income	93,572	94,262
Performing | Consumer - indirect:
Loans, net of unearned income	190,656	166,823
Performing | Consumer
Loans, net of unearned income	284,228	261,085
Performing | Leasing and other and overdrafts
Loans, net of unearned income	229,591	155,870
Performing | Commercial Loans, Commerical Mortgages, Constructions Loans
Loans, net of unearned income	$ 3,730,375	$ 3,467,096
Ratio of nonperforming loans to all loans	98.00%	97.70%
Delinquent | Real estate – home equity
Loans, net of unearned income	$ 9,274	$ 8,983
Delinquent | Real estate – residential mortgage
Loans, net of unearned income	20,344	18,305
Delinquent | Construction - other
Loans, net of unearned income	0	88
Delinquent | Consumer - direct
Loans, net of unearned income	1,752	2,254
Delinquent | Consumer - indirect:
Loans, net of unearned income	3,599	2,809
Delinquent | Consumer
Loans, net of unearned income	5,351	5,063
Delinquent | Leasing and other and overdrafts
Loans, net of unearned income	1,068	759
Delinquent | Commercial Loans, Commerical Mortgages, Constructions Loans
Loans, net of unearned income	$ 36,037	$ 33,198
Ratio of nonperforming loans to all loans	0.90%	1.00%
Nonperforming | Real estate – home equity
Loans, net of unearned income	$ 13,154	$ 14,683
Nonperforming | Real estate – residential mortgage
Loans, net of unearned income	23,655	28,484
Nonperforming | Construction - other
Loans, net of unearned income	1,096	609
Nonperforming | Consumer - direct
Loans, net of unearned income	1,563	2,203
Nonperforming | Consumer - indirect:
Loans, net of unearned income	328	237
Nonperforming | Consumer
Loans, net of unearned income	1,891	2,440
Nonperforming | Leasing and other and overdrafts
Loans, net of unearned income	317	1,506
Nonperforming | Commercial Loans, Commerical Mortgages, Constructions Loans
Loans, net of unearned income	$ 40,113	$ 47,722
Ratio of nonperforming loans to all loans	1.10%	1.30%

Loans and Allowance for Credi65

Loans and Allowance for Credit Losses Non-Performing Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Non-accrual loans	$ 120,133	$ 129,523
Loans 90 days or more past due and still accruing	11,505	15,291
Total non-performing loans	131,638	144,814
Other real estate owned	12,815	11,099
Total non-performing assets	$ 144,453	$ 155,913

Loans and Allowance for Credi66

Loans and Allowance for Credit Losses Past Due Loan Status and Non-Accrual Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
>90 Days Past Due and Accruing	$ 11,505	$ 15,291
Non-accrual	120,133	129,523
Total Past Due	186,787	196,741
Current	14,512,485	13,641,861
Loans, net of unearned income	14,699,272	13,838,602
Commercial – industrial, financial and agricultural
>90 Days Past Due and Accruing	1,111	1,872
Non-accrual	42,349	42,199
Total Past Due	53,669	52,933
Current	4,033,817	4,036,029
Loans, net of unearned income	4,087,486	4,088,962
Real estate – commercial mortgage
>90 Days Past Due and Accruing	383	439
Non-accrual	38,936	40,731
Total Past Due	47,195	48,951
Current	5,971,387	5,413,379
Loans, net of unearned income	6,018,582	5,462,330
Commercial - secured
>90 Days Past Due and Accruing	959	1,853
Non-accrual	41,589	41,498
Total Past Due	51,824	51,620
Current	3,881,728	3,874,493
Loans, net of unearned income	3,933,552	3,926,113
Commercial - unsecured
>90 Days Past Due and Accruing	152	19
Non-accrual	760	701
Total Past Due	1,845	1,313
Current	152,089	161,536
Loans, net of unearned income	153,934	162,849
Real estate – home equity
>90 Days Past Due and Accruing	2,543	3,473
Non-accrual	10,611	11,210
Total Past Due	22,428	23,666
Current	1,602,687	1,660,773
Loans, net of unearned income	1,625,115	1,684,439
Real estate – residential mortgage
>90 Days Past Due and Accruing	5,224	6,570
Non-accrual	18,431	21,914
Total Past Due	43,999	46,789
Current	1,557,995	1,329,371
Loans, net of unearned income	1,601,994	1,376,160
Real estate – construction
>90 Days Past Due and Accruing	36	416
Non-accrual	9,806	12,044
Total Past Due	10,869	14,634
Current	832,780	785,354
Loans, net of unearned income	843,649	799,988
Construction - commercial residential
>90 Days Past Due and Accruing	36	0
Non-accrual	8,275	11,213
Total Past Due	8,595	13,073
Current	133,594	166,230
Loans, net of unearned income	142,189	179,303
Construction - commercial
>90 Days Past Due and Accruing	0	0
Non-accrual	435	638
Total Past Due	1,178	864
Current	643,312	559,127
Loans, net of unearned income	644,490	559,991
Construction - other
>90 Days Past Due and Accruing	0	416
Non-accrual	1,096	193
Total Past Due	1,096	697
Current	55,874	59,997
Loans, net of unearned income	56,970	60,694
Consumer
>90 Days Past Due and Accruing	1,891	2,440
Non-accrual	0	0
Total Past Due	7,242	7,503
Current	284,228	261,085
Loans, net of unearned income	291,470	268,588
Consumer - direct
>90 Days Past Due and Accruing	1,563	2,203
Non-accrual	0	0
Total Past Due	3,315	4,457
Current	93,572	94,262
Loans, net of unearned income	96,887	98,719
Consumer - indirect
>90 Days Past Due and Accruing	328	237
Non-accrual	0	0
Total Past Due	3,927	3,046
Current	190,656	166,823
Loans, net of unearned income	194,583	169,869
Leasing and other and overdrafts
>90 Days Past Due and Accruing	317	81
Non-accrual	0	1,425
Total Past Due	1,385	2,265
Current	229,591	155,870
Loans, net of unearned income	230,976	158,135
30-59 Days Past Due
Total Past Due	41,938	40,194
30-59 Days Past Due | Commercial – industrial, financial and agricultural
Total Past Due	7,558	6,164
30-59 Days Past Due | Real estate – commercial mortgage
Total Past Due	6,254	6,469
30-59 Days Past Due | Commercial - secured
Total Past Due	6,660	5,654
30-59 Days Past Due | Commercial - unsecured
Total Past Due	898	510
30-59 Days Past Due | Real estate – home equity
Total Past Due	6,596	6,438
30-59 Days Past Due | Real estate – residential mortgage
Total Past Due	15,600	15,141
30-59 Days Past Due | Real estate – construction
Total Past Due	976	1,504
30-59 Days Past Due | Construction - commercial residential
Total Past Due	233	1,366
30-59 Days Past Due | Construction - commercial
Total Past Due	743	50
30-59 Days Past Due | Construction - other
Total Past Due	0	88
30-59 Days Past Due | Consumer
Total Past Due	4,411	3,995
30-59 Days Past Due | Consumer - direct
Total Past Due	1,211	1,687
30-59 Days Past Due | Consumer - indirect
Total Past Due	3,200	2,308
30-59 Days Past Due | Leasing and other and overdrafts
Total Past Due	543	483
60-89 Days Past Due
Total Past Due	13,211	11,733
60-89 Days Past Due | Commercial – industrial, financial and agricultural
Total Past Due	2,651	2,698
60-89 Days Past Due | Real estate – commercial mortgage
Total Past Due	1,622	1,312
60-89 Days Past Due | Commercial - secured
Total Past Due	2,616	2,615
60-89 Days Past Due | Commercial - unsecured
Total Past Due	35	83
60-89 Days Past Due | Real estate – home equity
Total Past Due	2,678	2,545
60-89 Days Past Due | Real estate – residential mortgage
Total Past Due	4,744	3,164
60-89 Days Past Due | Real estate – construction
Total Past Due	51	670
60-89 Days Past Due | Construction - commercial residential
Total Past Due	51	494
60-89 Days Past Due | Construction - commercial
Total Past Due	0	176
60-89 Days Past Due | Construction - other
Total Past Due	0	0
60-89 Days Past Due | Consumer
Total Past Due	940	1,068
60-89 Days Past Due | Consumer - direct
Total Past Due	541	567
60-89 Days Past Due | Consumer - indirect
Total Past Due	399	501
60-89 Days Past Due | Leasing and other and overdrafts
Total Past Due	525	276
Total ≥ 90 Days
Total Past Due	131,638	144,814
Total ≥ 90 Days | Commercial – industrial, financial and agricultural
Total Past Due	43,460	44,071
Total ≥ 90 Days | Real estate – commercial mortgage
Total Past Due	39,319	41,170
Total ≥ 90 Days | Commercial - secured
Total Past Due	42,548	43,351
Total ≥ 90 Days | Commercial - unsecured
Total Past Due	912	720
Total ≥ 90 Days | Real estate – home equity
Total Past Due	13,154	14,683
Total ≥ 90 Days | Real estate – residential mortgage
Total Past Due	23,655	28,484
Total ≥ 90 Days | Real estate – construction
Total Past Due	9,842	12,460
Total ≥ 90 Days | Construction - commercial residential
Total Past Due	8,311	11,213
Total ≥ 90 Days | Construction - commercial
Total Past Due	435	638
Total ≥ 90 Days | Construction - other
Total Past Due	1,096	609
Total ≥ 90 Days | Consumer
Total Past Due	1,891	2,440
Total ≥ 90 Days | Consumer - direct
Total Past Due	1,563	2,203
Total ≥ 90 Days | Consumer - indirect
Total Past Due	328	237
Total ≥ 90 Days | Leasing and other and overdrafts
Total Past Due	$ 317	$ 1,506

Loans and Allowance for Credi67

Loans and Allowance for Credit Losses Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	$ 59,560	$ 60,558
Non-accrual TDRs	27,850	31,035
Total TDRs	87,410	91,593
Residential Mortgage
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	27,617	28,511
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	15,957	17,563
Construction - commercial residential
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	726	3,942
Commercial - secured
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	6,564	5,833
Real estate – home equity
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	8,594	4,556
Commercial - unsecured
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	63	120
Consumer - direct
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	20	19
Consumer - indirect:
Financing Receivable, Modifications [Line Items]
Total accruing TDRs	$ 19	$ 14

Loans and Allowance for Credi68

Loans and Allowance for Credit Losses Troubled Debt Restructuring Modification (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)loans	Dec. 31, 2015USD ($)loans	Dec. 31, 2014USD ($)loans
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	158	96	86
Post-Modification Recorded Investment	$ 12,378	$ 14,416	$ 16,397
Number of Loans, modified during the year that had a post-modification default	45	29	31
Recorded Investment, modified during the year that had a post-modification default	$ 5,996	$ 5,116	$ 7,063
Real estate – commercial mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default	1	4	2
Recorded Investment, modified during the year that had a post-modification default	$ 118	$ 359	$ 1,660
Real estate – commercial mortgage | Extend maturity with rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	0	5	1
Post-Modification Recorded Investment	$ 0	$ 2,014	$ 60
Real estate – commercial mortgage | Extend maturity without rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	0	4	7
Post-Modification Recorded Investment	$ 0	$ 639	$ 6,781
Real estate – residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default	8	4	11
Recorded Investment, modified during the year that had a post-modification default	$ 1,500	$ 445	$ 1,430
Real estate – residential mortgage | Extend maturity with rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	0	4	2
Post-Modification Recorded Investment	$ 0	$ 750	$ 390
Real estate – residential mortgage | Extend maturity without rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	2	3	2
Post-Modification Recorded Investment	$ 315	$ 262	$ 210
Real estate – residential mortgage | Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	6	7	19
Post-Modification Recorded Investment	$ 981	$ 2,508	$ 1,807
Commercial - secured
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default	6	8	4
Recorded Investment, modified during the year that had a post-modification default	$ 2,497	$ 3,549	$ 1,208
Commercial - secured | Extend maturity with rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	0	2	3
Post-Modification Recorded Investment	$ 0	$ 127	$ 315
Commercial - secured | Extend maturity without rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	10	9	8
Post-Modification Recorded Investment	$ 3,801	$ 3,785	$ 1,640
Commercial - unsecured
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default | loans	1	0	0
Recorded Investment, modified during the year that had a post-modification default	$ 26	$ 0	$ 0
Commercial - unsecured | Extend maturity without rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	2	1	0
Post-Modification Recorded Investment	$ 103	$ 38	$ 0
Real estate – home equity
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default	28	13	11
Recorded Investment, modified during the year that had a post-modification default	$ 1,836	$ 763	$ 961
Real estate – home equity | Extend maturity with rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	0	2	0
Post-Modification Recorded Investment	$ 0	$ 36	$ 0
Real estate – home equity | Extend maturity without rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	89	3	0
Post-Modification Recorded Investment	$ 4,484	$ 203	$ 0
Real estate – home equity | Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	47	52	30
Post-Modification Recorded Investment	$ 2,671	$ 2,501	$ 1,551
Construction - commercial residential
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default	0	0	2
Recorded Investment, modified during the year that had a post-modification default	$ 0	$ 0	$ 1,803
Construction - commercial residential | Extend maturity without rate concession
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	0	1	3
Post-Modification Recorded Investment	$ 0	$ 1,535	$ 3,616
Consumer - direct
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default	0	0	1
Recorded Investment, modified during the year that had a post-modification default	$ 0	$ 0	$ 1
Consumer - direct | Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	1	2	7
Post-Modification Recorded Investment	$ 2	$ 6	$ 7
Consumer - indirect:
Financing Receivable, Modifications [Line Items]
Number of Loans, modified during the year that had a post-modification default | loans	1	0	0
Recorded Investment, modified during the year that had a post-modification default	$ 19	$ 0	$ 0
Consumer - indirect: | Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of loans modified during the year (loans) | loans	1	1	4
Post-Modification Recorded Investment	$ 21	$ 12	$ 20

Loans and Allowance for Credi69

Loans and Allowance for Credit Losses Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Commitments to lend additional funds to borrowers	$ 3.6	$ 5.3

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 488,311	$ 487,012
Less: Accumulated depreciation and amortization	(270,505)	(261,477)
Premises and equipment, net	217,806	225,535
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	36,097	37,380
Buildings and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	293,836	297,018
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	137,282	136,029
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 21,096	$ 16,585

Goodwill and Intangible Asset71

Goodwill and Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill	$ 530,593,000	$ 530,593,000
Non-amortizing intangible assets	963,000	963,000
Balance at end of year	531,556,000	531,556,000
Goodwill impairment charges	0	$ 0	$ 0
Subsidiaries | Six Reporting Units
Goodwill [Line Items]
Goodwill	$ 530,600,000
Goodwill impairment test fair value exceeding adjusted net book value	62.00%

Mortgage Servicing Rights Summa

Mortgage Servicing Rights Summary of Changes in Mortgage Servicing Rights (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Valuation allowance:
Estimated fair value of MSRs	$ 38,200,000	$ 45,300,000
Mortgage
Amortized cost:
Balance at beginning of year	40,944,000	42,148,000
Originations of mortgage servicing rights	5,485,000	6,166,000
Amortization expense	(7,607,000)	(7,370,000)
Balance at end of year	38,822,000	40,944,000
Valuation allowance:
Balance at beginning of year	0	0
Net additions to the valuation allowance	(1,291,000)	0
Balance at end of year	(1,291,000)	0
Net MSRs at end of year	37,531,000	$ 40,944,000
Amortization [Abstract]
2,017	6,538,000
2,018	6,087,000
2,019	5,590,000
2,020	5,043,000
2,021	$ 4,443,000

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deposits [Line Items]
Noninterest-bearing demand	$ 4,376,137	$ 3,948,114
Interest-bearing demand	3,703,712	3,451,207
Savings and money market accounts	4,179,773	3,868,046
Time deposits	2,753,242	2,864,950
Total Deposits	15,012,864	14,132,317
Time Deposits, $250,000 or More	374,400	359,900
Maturities of Time Deposits [Abstract]
2,017	1,333,954
2,018	376,599
2,019	665,027
2,020	182,473
2,021	105,934
Thereafter	89,255
Total	2,753,242	2,864,950
Certificates of Deposit
Deposits [Line Items]
Time Deposits, $100,000 or More	$ 1,200,000	$ 1,200,000

Short-Term Borrowings and Lon74

Short-Term Borrowings and Long-Term Debt Short Term (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 1,100,000
Short-term borrowings	541,317	$ 497,663	$ 329,719
Collateralized borrowings availability at discount window	1,200,000	1,200,000
Federal funds purchased
Short-term Debt [Line Items]
Short-term borrowings	278,570	197,235	6,219
Maximum month-end outstanding amount	449,184	266,338	577,581
Short-term FHLB advances
Short-term Debt [Line Items]
Short-term borrowings	0	110,000	70,000
Maximum month-end outstanding amount	0	200,000	600,000
Customer repurchase agreements
Short-term Debt [Line Items]
Short-term borrowings	195,734	111,496	158,394
Maximum month-end outstanding amount	221,989	212,509	244,729
Customer short-term promissory notes
Short-term Debt [Line Items]
Short-term borrowings	67,013	78,932	95,106
Maximum month-end outstanding amount	$ 77,887	$ 93,176	$ 95,106

Short-Term Borrowings and Lon75

Short-Term Borrowings and Long-Term Debt Repurchase Agreements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Short-term Debt [Line Items]
Amount outstanding as of December 31	$ 541,317	$ 497,663	$ 329,719
Customer repurchase agreements
Short-term Debt [Line Items]
Amount outstanding as of December 31	$ 195,734	$ 111,496	$ 158,394
Weighted average interest rate as of December 31	0.10%	0.15%	0.13%
Average amount outstanding during the year	$ 184,978	$ 161,093	$ 197,432
Weighted average interest rate during the year	0.11%	0.10%	0.10%

Short-Term Borrowings and Lon76

Short-Term Borrowings and Long-Term Debt Long Term (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Federal Home Loan Bank advances and long-term debt	$ (929,403)	$ (949,542)
Short-term FHLB advances
Debt Instrument [Line Items]
Federal Home Loan Bank advances and long-term debt	$ (567,240)	(587,756)
Weighted average interest rate	2.50%
Unused borrowing capacity	$ 3,100,000
Subordinated debt
Debt Instrument [Line Items]
Federal Home Loan Bank advances and long-term debt	(350,000)	(350,000)
Intercompany revolving line of credit	75,000
Junior subordinated deferrable interest debentures
Debt Instrument [Line Items]
Federal Home Loan Bank advances and long-term debt	(16,496)	(16,496)
Unamortized discounts and issuance costs
Debt Instrument [Line Items]
Federal Home Loan Bank advances and long-term debt	$ (4,333)	$ (4,710)
Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%

Short-Term Borrowings and Lon77

Short-Term Borrowings and Long-Term Debt Maturiities (Details) $ in Thousands	Dec. 31, 2016USD ($)
Short-Term Borrowings and Long-Term Debt [Abstract]
2,017	$ 114,415
2,018	0
2,019	202,731
2,020	142,370
2,021	199,444
Thereafter	270,443
Long Term Debt Maturities Total	$ 929,403

Short-Term Borrowings and Lon78

Short-Term Borrowings and Long-Term Debt Subordinated Debt (Details)	1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Sep. 30, 2015USD ($)	Dec. 31, 2016USD ($)subsidiarytrusts	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Sep. 30, 2016	Nov. 30, 2014USD ($)	May 31, 2007USD ($)
Subordinated Debt [Abstract]
Net Income			$ 161,625,000	$ 149,502,000	$ 157,894,000
Income taxes			$ 46,624,000	$ 49,921,000	$ 52,606,000
Subsidiary trusts owned by parent | subsidiarytrusts			3
Junior subordinated deferrable interest debentures
Subordinated Debt [Abstract]
Effective interest rate						6.52%
Extinguishment of debt, amount		$ 150,000,000
Amortization of financing costs		1,800,000
Non-Interest Income (Expense) | Junior subordinated deferrable interest debentures
Subordinated Debt [Abstract]
Loss on debt extinguishment		(5,600,000)
Unrealized Effective Portions of Losses on Forward-Starting Interest Rate Swaps | Reclassification out of Accumulated Other Comprehensive Income | Junior subordinated deferrable interest debentures
Subordinated Debt [Abstract]
Net Income		2,500,000
Income taxes		1,300,000
Junior subordinated deferrable interest debentures
Subordinated Debt [Abstract]
Subordinated Debt			$ 16,496,000
Junior subordinated deferrable interest debentures | Columbia Bancorp Statutory Trust
Subordinated Debt [Abstract]
Interest Rate			3.49%
Subordinated Debt			$ 6,186,000
Maturity			Jun. 30, 2034
Callable			Mar. 31, 2017
Call Price			1
Junior subordinated deferrable interest debentures | Columbia Bancorp Statutory Trust II
Subordinated Debt [Abstract]
Interest Rate			2.85%
Subordinated Debt			$ 4,124,000
Maturity			Mar. 15, 2035
Callable			Mar. 31, 2017
Call Price			1
Junior subordinated deferrable interest debentures | Columbia Bancorp Statutory Trust III
Subordinated Debt [Abstract]
Interest Rate			2.73%
Subordinated Debt			$ 6,186,000
Maturity			Jun. 15, 2035
Callable			Mar. 31, 2017
Call Price			1
Subordinated debt
Subordinated Debt [Abstract]
Debt instrument, face amount		$ 150,000,000
Debt instrument, term	10 years
Interest Rate	4.50%
Effective interest rate		4.69%
Subordinated debt | May 2017 Subordinated Debt
Subordinated Debt [Abstract]
Effective interest rate								5.96%
Subordinated Debt								$ 100,000,000
Stated interest rate								5.75%
Subordinated debt | November 2024 Subordinated Debt
Subordinated Debt [Abstract]
Effective interest rate							4.87%
Subordinated Debt							$ 100,000,000
Stated interest rate							4.50%

Derivative Financial Instrume79

Derivative Financial Instruments Notional Amounts and Fair Values of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Foreign Currency Contract, Fair Value, Net	$ 2,824	$ 1,667
Interest Rate Locks with Customers
Derivatives, Fair Value [Line Items]
Derivatives, at Fair Value, Net	636	1,275
Interest Rate Locks with Customers | Positive fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	87,119	87,781
Derivative Assets, at Fair Value	863	1,291
Interest Rate Locks with Customers | Negative fair values
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	18,239	267
Derivative Liabilities, at Fair Value	(227)	(16)
Forward Commitments
Derivatives, Fair Value [Line Items]
Derivatives, at Fair Value, Net	2,111	181
Forward Commitments | Positive fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	70,031	69,045
Derivative Assets, at Fair Value	2,223	205
Forward Commitments | Negative fair values
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	19,964	16,193
Derivative Liabilities, at Fair Value	(112)	(24)
Interest Rate Swaps with Customers
Derivatives, Fair Value [Line Items]
Derivatives, at Fair Value, Net	7,399	32,860
Interest Rate Swaps with Customers | Positive fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	876,744	846,490
Derivative Assets, at Fair Value	24,397	32,915
Interest Rate Swaps with Customers | Negative fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	583,060	8,757
Derivative Liabilities, at Fair Value	(16,998)	(55)
Interest Rate Swaps with Dealer Counterparties
Derivatives, Fair Value [Line Items]
Derivatives, at Fair Value, Net	(7,399)	(32,860)
Interest Rate Swaps with Dealer Counterparties | Positive fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	583,060	8,757
Derivative Assets, at Fair Value	16,998	55
Interest Rate Swaps with Dealer Counterparties | Negative fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	876,744	846,490
Derivative Liabilities, at Fair Value	(24,397)	(32,915)
Foreign Exchange Contracts with Customers
Derivatives, Fair Value [Line Items]
Foreign Currency Contract, Fair Value, Net	283	(70)
Foreign Exchange Contracts with Customers | Positive fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	11,674	4,897
Foreign Currency Contract, Asset, Fair Value	504	114
Foreign Exchange Contracts with Customers | Negative fair values
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	4,659	8,050
Foreign Currency Contracts, Liability, Fair Value	(221)	(184)
Foreign Exchange Contracts with Correspondent Banks
Derivatives, Fair Value [Line Items]
Foreign Currency Contract, Fair Value, Net	(206)	281
Foreign Exchange Contracts with Correspondent Banks | Positive fair values
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	7,040	9,728
Foreign Currency Contract, Asset, Fair Value	241	428
Foreign Exchange Contracts with Correspondent Banks | Negative fair values
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	12,869	6,899
Foreign Currency Contracts, Liability, Fair Value	$ (447)	$ (147)

Derivative Financial Instrume80

Derivative Financial Instruments Fair Value Gains and Losses on Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Income
Derivatives, Fair Value [Line Items]
Net fair value gains (losses) on derivative financial instruments	$ 1,157	$ 1,507	$ (2,037)
Interest rate locks with customers | Mortgage Banking Income
Derivatives, Fair Value [Line Items]
Gain (loss) on interest rate derivative instruments	(639)	(110)	577
Forward Commitments | Mortgage Banking Income
Derivatives, Fair Value [Line Items]
Gain (loss) on interest rate derivative instruments	1,930	1,345	(2,422)
Interest Rate Swaps with Customers | Other Income
Derivatives, Fair Value [Line Items]
Gain (loss) on interest rate derivative instruments	(25,461)	13,342	20,406
Interest Rate Swaps with Dealer Counterparties | Other Income
Derivatives, Fair Value [Line Items]
Gain (loss) on interest rate derivative instruments	25,461	(13,342)	(20,406)
Foreign Exchange Contracts with Correspondent Banks | Other Income
Derivatives, Fair Value [Line Items]
Gain (loss) on foreign currency derivatives	(487)	711	(880)
Foreign exchange contracts with customers | Other Income
Derivatives, Fair Value [Line Items]
Gain (loss) on foreign currency derivatives	$ 353	$ (439)	$ 688

Derivative Financial Instrume81

Derivative Financial Instruments Fair Value Option (Details) - Mortgage loans held for sale - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Mortgage Banking Income
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value Loss	$ (313)	$ (140)
Mortgage loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Cost	28,708	16,584
Fair Value	$ 28,697	$ 16,886

Derivative Financial Instrume82

Derivative Financial Instruments Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Offsetting Assets and Liabilities [Line Items]
Gross asset	$ 41,636	$ 33,398
Financial Instruments	(15,358)	(202)
Cash collateral	0	0
Net asset	26,278	33,196
Gross liability	41,842	33,117
Financial Instruments	(15,358)	(202)
Cash Collateral	(4,216)	(31,130)
Net liability	22,268	1,785
Interest Rate Swap
Offsetting Assets and Liabilities [Line Items]
Gross asset	41,395	32,970
Financial Instruments	(15,117)	(55)
Cash collateral	0	0
Net asset	26,278	32,915
Gross liability	41,395	32,970
Financial Instruments	(15,117)	(55)
Cash Collateral	(4,010)	(31,130)
Net liability	22,268	1,785
Foreign Exchange Contract
Offsetting Assets and Liabilities [Line Items]
Gross asset	241	428
Financial Instruments	(241)	(147)
Cash collateral	0	0
Net asset	0	281
Gross liability	447	147
Financial Instruments	(241)	(147)
Cash Collateral	(206)	0
Net liability	$ 0	$ 0

Regulatory Matters (Details)

Regulatory Matters (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)banks	Dec. 31, 2015USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Amount available for dividend distribution without affecting capital adequacy requirements	$ 233,000
Maximum allowed percentage of loans issued to a single affiliate	10000.00%
Maximum allowed percentage of aggregate loans issued to all affiliate	20000.00%
Significant subidiaries | banks	4
Excess tier one risk based capital	$ 1,000,000	$ 1,000,000
Total Capital [Abstract]
Capital	$ 2,074,526	$ 1,997,926
Capital to risk weighted assets	13.20%	13.20%
Capital required for capital adequacy	$ 1,255,292	$ 1,214,868
Capital required for capital adequacy to risk weighted assets	8.00%	8.00%
Tier One Risk Based Capital [Abstract]
Tier one risk based capital	$ 1,637,150	$ 1,544,495
Tier one risk based capital to risk weighted assets	10.40%	10.20%
Tier one risk based capital required for capital adequacy	$ 941,469	$ 911,151
Tier one risk based capital required for capital adequacy to risk weighted assets	6.00%	6.00%
CommonEquityTierOneCapitalAbstract [Abstract]
Common equity tier 1 capital	$ 1,637,150	$ 1,541,214
Common equity tier one capital ratio	10.40%	10.20%
Common equity tier one capital required for capital adequacy	$ 706,102	$ 683,363
Common equity tier one capital required for capital adequacy to risk weighted assets	4.50%	4.50%
Tier One Leverage Capital [Abstract]
Tier one leverage capital	$ 1,637,150	$ 1,544,495
Tier one leverage capital to average assets	9.00%	9.00%
Tier one leverage capital required for capital adequacy	$ 727,745	$ 688,500
Tier one leverage capital required for capital adequacy to average assets	4.00%	4.00%
Fulton Bank, N.A.
Total Capital [Abstract]
Capital	$ 1,142,326	$ 1,088,709
Capital to risk weighted assets	12.20%	12.20%
Capital required for capital adequacy	$ 747,359	$ 714,734
Capital required for capital adequacy to risk weighted assets	8.00%	8.00%
Capital required to be well capitalized	$ 934,199	$ 893,418
Capital required to be well capitalized to risk weighted assets	10.00%	10.00%
Tier One Risk Based Capital [Abstract]
Tier one risk based capital	$ 1,050,175	$ 1,000,603
Tier one risk based capital to risk weighted assets	11.20%	11.20%
Tier one risk based capital required for capital adequacy	$ 560,519	$ 536,051
Tier one risk based capital required for capital adequacy to risk weighted assets	6.00%	6.00%
Tier one risk based capital required to be well capitalized	$ 747,359	$ 714,734
Tier one risk based capital required to be well capitalized to risk weighted assets	8.00%	8.00%
CommonEquityTierOneCapitalAbstract [Abstract]
Common equity tier 1 capital	$ 1,006,175	$ 956,603
Common equity tier one capital ratio	10.80%	10.70%
Common equity tier one capital required for capital adequacy	$ 420,389	$ 402,038
Common equity tier one capital required for capital adequacy to risk weighted assets	4.50%	4.50%
Common equity tier one capital required to be well-capitalized	$ 607,229	$ 580,721
Common equity tier one capital required to be well capitalized to risk weighted assets	6.50%	6.50%
Tier One Leverage Capital [Abstract]
Tier one leverage capital	$ 1,050,175	$ 1,000,603
Tier one leverage capital to average assets	10.10%	10.20%
Tier one leverage capital required for capital adequacy	$ 415,981	$ 391,783
Tier one leverage capital required for capital adequacy to average assets	4.00%	4.00%
Tier one leverage capital required to be well capitalized	$ 519,977	$ 489,729
Tier one leverage capital required to be well capitalized to average assets	5.00%	5.00%
Fulton Bank of New Jersey
Total Capital [Abstract]
Capital	$ 385,807	$ 373,465
Capital to risk weighted assets	13.10%	12.60%
Capital required for capital adequacy	$ 234,782	$ 236,691
Capital required for capital adequacy to risk weighted assets	8.00%	8.00%
Capital required to be well capitalized	$ 293,427	$ 295,864
Capital required to be well capitalized to risk weighted assets	10.00%	10.00%
Tier One Risk Based Capital [Abstract]
Tier one risk based capital	$ 348,992	$ 336,319
Tier one risk based capital to risk weighted assets	11.90%	11.40%
Tier one risk based capital required for capital adequacy	$ 176,086	$ 177,518
Tier one risk based capital required for capital adequacy to risk weighted assets	6.00%	6.00%
Tier one risk based capital required to be well capitalized	$ 234,782	$ 236,691
Tier one risk based capital required to be well capitalized to risk weighted assets	8.00%	8.00%
CommonEquityTierOneCapitalAbstract [Abstract]
Common equity tier 1 capital	$ 348,992	$ 336,319
Common equity tier one capital ratio	11.90%	11.40%
Common equity tier one capital required for capital adequacy	$ 132,065	$ 133,139
Common equity tier one capital required for capital adequacy to risk weighted assets	4.50%	4.50%
Common equity tier one capital required to be well-capitalized	$ 190,760	$ 192,311
Common equity tier one capital required to be well capitalized to risk weighted assets	6.50%	6.50%
Tier One Leverage Capital [Abstract]
Tier one leverage capital	$ 348,992	$ 336,319
Tier one leverage capital to average assets	9.40%	9.50%
Tier one leverage capital required for capital adequacy	$ 148,472	$ 141,257
Tier one leverage capital required for capital adequacy to average assets	4.00%	4.00%
Tier one leverage capital required to be well capitalized	$ 185,590	$ 176,572
Tier one leverage capital required to be well capitalized to average assets	5.00%	5.00%
The Columbia Bank
Total Capital [Abstract]
Capital	$ 203,890	$ 211,355
Capital to risk weighted assets	12.20%	13.70%
Capital required for capital adequacy	$ 133,836	$ 123,260
Capital required for capital adequacy to risk weighted assets	8.00%	8.00%
Capital required to be well capitalized	$ 167,294	$ 154,075
Capital required to be well capitalized to risk weighted assets	10.00%	10.00%
Tier One Risk Based Capital [Abstract]
Tier one risk based capital	$ 185,983	$ 192,090
Tier one risk based capital to risk weighted assets	11.10%	12.50%
Tier one risk based capital required for capital adequacy	$ 100,377	$ 92,445
Tier one risk based capital required for capital adequacy to risk weighted assets	6.00%	6.00%
Tier one risk based capital required to be well capitalized	$ 133,836	$ 123,260
Tier one risk based capital required to be well capitalized to risk weighted assets	8.00%	8.00%
CommonEquityTierOneCapitalAbstract [Abstract]
Common equity tier 1 capital	$ 185,983	$ 192,090
Common equity tier one capital ratio	11.10%	12.50%
Common equity tier one capital required for capital adequacy	$ 72,282	$ 69,334
Common equity tier one capital required for capital adequacy to risk weighted assets	4.50%	4.50%
Common equity tier one capital required to be well-capitalized	$ 108,741	$ 100,149
Common equity tier one capital required to be well capitalized to risk weighted assets	6.50%	6.50%
Tier One Leverage Capital [Abstract]
Tier one leverage capital	$ 185,983	$ 192,090
Tier one leverage capital to average assets	8.60%	9.70%
Tier one leverage capital required for capital adequacy	$ 86,310	$ 79,618
Tier one leverage capital required for capital adequacy to average assets	4.00%	4.00%
Tier one leverage capital required to be well capitalized	$ 107,888	$ 99,523
Tier one leverage capital required to be well capitalized to average assets	5.00%	5.00%
Lafayette Ambassador Bank
Total Capital [Abstract]
Capital	$ 175,254	$ 172,345
Capital to risk weighted assets	14.60%	14.10%
Capital required for capital adequacy	$ 96,100	$ 97,792
Capital required for capital adequacy to risk weighted assets	8.00%	8.00%
Capital required to be well capitalized	$ 120,125	$ 122,240
Capital required to be well capitalized to risk weighted assets	10.00%	10.00%
Tier One Risk Based Capital [Abstract]
Tier one risk based capital	$ 166,186	$ 162,092
Tier one risk based capital to risk weighted assets	13.80%	13.30%
Tier one risk based capital required for capital adequacy	$ 72,075	$ 73,344
Tier one risk based capital required for capital adequacy to risk weighted assets	6.00%	6.00%
Tier one risk based capital required to be well capitalized	$ 96,100	$ 97,792
Tier one risk based capital required to be well capitalized to risk weighted assets	8.00%	8.00%
CommonEquityTierOneCapitalAbstract [Abstract]
Common equity tier 1 capital	$ 166,186	$ 162,092
Common equity tier one capital ratio	13.80%	13.30%
Common equity tier one capital required for capital adequacy	$ 54,056	$ 55,008
Common equity tier one capital required for capital adequacy to risk weighted assets	4.50%	4.50%
Common equity tier one capital required to be well-capitalized	$ 78,081	$ 79,456
Common equity tier one capital required to be well capitalized to risk weighted assets	6.50%	6.50%
Tier One Leverage Capital [Abstract]
Tier one leverage capital	$ 166,186	$ 162,092
Tier one leverage capital to average assets	10.90%	11.00%
Tier one leverage capital required for capital adequacy	$ 61,129	$ 59,152
Tier one leverage capital required for capital adequacy to average assets	4.00%	4.00%
Tier one leverage capital required to be well capitalized	$ 76,412	$ 73,940
Tier one leverage capital required to be well capitalized to average assets	5.00%	5.00%

Income Taxes Expense (Benefit)

Income Taxes Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current tax expense:
Federal	$ 33,872	$ 34,455	$ 32,957
State	1,698	2,042	1,126
Total	35,570	36,497	34,083
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	7,968	12,752	18,523
State	3,086	672	0
Total	11,054	13,424	18,523
Income tax expense	$ 46,624	$ 49,921	$ 52,606

Income Taxes Effective Tax Rate

Income Taxes Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory tax rate	35.00%	35.00%	35.00%
Tax-exempt income	(6.50%)	(6.00%)	(5.40%)
Tax Credit Investments	(7.00%)	(5.20%)	(4.90%)
Change in valuation allowance	0.30%	(0.90%)	(0.80%)
Bank owned life insurance	(0.60%)	(0.60%)	(0.50%)
State income taxes, net of federal benefit	1.20%	1.90%	1.20%
Executive compensation	0.10%	0.10%	0.10%
Other, net	(0.10%)	0.70%	(0.30%)
Effective income tax rate	22.40%	25.00%	24.40%

Income Taxes Deferred Tax Asset

Income Taxes Deferred Tax Assetss And Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Allowance for credit losses	$ 62,726	$ 62,846
Postretirement and defined benefit plans	12,659	13,070
State loss carryforwards	9,820	11,170
Other accrued expenses	12,017	11,839
Other-than-temporary impairment of investments	5,187	5,501
Other accrued expenses	9,520	7,142
Unrealized holding losses on securities available for sale	12,260	3,250
Other	8,500	10,165
Total gross deferred tax assets	132,689	124,983
Deferred Tax Liabilities, Gross [Abstract]
Mortgage servicing rights	13,369	14,582
Direct leasing	27,663	20,309
Acquisition premiums/discounts	9,167	8,897
Premises and equipment	5,625	5,955
Intangible assets	1,810	1,614
Other	12,530	9,593
Total gross deferred tax liabilities	70,164	60,950
Net deferred tax asset, before valuation allowance	62,525	64,033
Valuation allowance	(8,950)	(8,359)
Net deferred tax asset	53,575	55,674
State and local operating loss carryforwards	391,000	$ 424,000
Capital loss carryforwards	2,500
Deferred tax assets other than temporary impairment losses investment securities	$ 5,000

Income Taxes Unrecognized Benef

Income Taxes Unrecognized Benefit (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of year	$ 2,373,000	$ 1,944,000	$ 1,651,000
Prior period tax positions	0	0	188,000
Current period tax positions	456,000	492,000	269,000
Lapse of statute of limitations	(391,000)	(63,000)	(164,000)
Balance at end of year	2,438,000	2,373,000	$ 1,944,000
Unrecognized tax benefits that would impact effective tax rate	845,000
Interest and penalties in income tax expense related to unrecognized tax positions	43,000	46,000
Income tax penalties and interest accrued	$ 574,000	$ 531,000

Employee Benefit Plans Benefits

Employee Benefit Plans Benefits (Details) - USD ($) $ in Thousands	Feb. 01, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Retirement plan and pension plan, total		$ 11,728	$ 10,525	$ 10,157
Amount to be amortized from accumulated other comprehensive income (loss) in next twelve months		2,700
Other Postretirement Benefit Plan | 401k Plan
Defined Benefit Plan Disclosure [Line Items]
401(k) Retirement Plan		$ 7,418	6,423	8,643
Maximum percentage of eligible employee’s covered compensation		5.00%
Percentage of plan vested		100.00%
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension Plan		$ 4,310	4,102	1,514
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Pension Plan		(466)	$ (52)	$ (126)
Effect of curtailment	$ 3,400
Plan amendment		$ 2,500

Employee Benefit Plans Net Peri

Employee Benefit Plans Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 688	$ 579	$ 367
Interest cost	3,520	3,405	3,413
Expected return on assets	(2,318)	(3,009)	(3,240)
Net amortization and deferral	2,420	3,127	974
Net periodic benefit cost	4,310	4,102	1,514
Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	15
Interest cost	85	206	206
Net amortization and deferral	(551)	(258)	(347)
Net periodic benefit cost	$ (466)	$ (52)	$ (126)

Employee Benefit Plans Projecte

Employee Benefit Plans Projected Benefit Obligation (Details) - USD ($)	Feb. 01, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year		$ 46,971,000
Fair value of plan assets at end of year		48,684,000	$ 46,971,000
Other Postretirement Benefit Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year		2,875,000	5,552,000
Service cost		0	0	$ 15,000
Interest cost		85,000	206,000	206,000
Benefit payments		(282,000)	(251,000)
Change in assumptions		(20,000)	(2,821,000)
Effect of curtailment	$ (3,400,000)
Experience gain		732,000	(189,000)
Projected benefit obligation at end of year		1,926,000	2,875,000	5,552,000
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year		15,000	8,000
Benefit payments		(282,000)	(251,000)
Fair value of plan assets at end of year		3,000	15,000	8,000
Employer contributions		270,000	258,000
Pension Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year		84,736,000	93,079,000
Service cost		688,000	579,000	367,000
Interest cost		3,520,000	3,405,000	3,413,000
Benefit payments		(5,172,000)	(3,904,000)
Change in assumptions		1,635,000	(7,722,000)
Experience gain		(44,000)	(701,000)
Projected benefit obligation at end of year		85,363,000	84,736,000	93,079,000
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year		46,971,000	51,730,000
Actual return on plan assets		1,716,000	(855,000)
Benefit payments		(5,172,000)	(3,904,000)
Fair value of plan assets at end of year		48,684,000	46,971,000	$ 51,730,000
Employer contributions		$ 5,169,000	$ 0

Employee Benefit Plans Funded S

Employee Benefit Plans Funded Status (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets	$ 48,684	$ 46,971
Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation	(85,363)	(84,736)	$ (93,079)
Fair value of plan assets	48,684	46,971	51,730
Funded status	(36,679)	(37,765)
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation	(1,926)	(2,875)	(5,552)
Fair value of plan assets	3	15	$ 8
Funded status	$ (1,923)	$ (2,860)

Employee Benefit Plans Unrecogn

Employee Benefit Plans Unrecognized loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Gross of tax
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax			$ (1,452)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ (22,017)	$ (17,722)	(37,341)
Recognized component of periodic pension cost			(944)
Unrecognized gains arising in current year	(931)	4,680	(13,168)
Ending Balance	(38,449)	(22,017)	(17,722)
Unrecognized Pension and Postretirement Plan Income (Cost)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(15,961)	(22,505)	(8,801)
Ending Balance	(15,675)	(15,961)	(22,505)
Pension Plans | Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member]
Gross of tax
AOCI before Tax, Attributable to Parent	30,396	38,082
Reclass adjustment for postretirement plan gain included in net income	(2,420)	(3,127)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	2,193	(4,559)
AOCI before Tax, Attributable to Parent	30,169	30,396	38,082
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	19,758	24,754
Recognized component of periodic pension cost	(1,573)	(2,033)
Unrecognized gains arising in current year	1,425	(2,963)
Ending Balance	19,610	19,758	24,754
Other Postretirement Benefit Plans | Accumulated Defined Benefit Plans Adjustment, Net Prior Service Cost [Member]
Gross of tax
AOCI before Tax, Attributable to Parent	(5,334)	(3,123)
Reclass adjustment for postretirement plan gain included in net income	465	258
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Prior to Curtailment, before Tax		(2,469)
AOCI before Tax, Attributable to Parent	(4,869)	(5,334)	(3,123)
Other Postretirement Benefit Plans | Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member]
Gross of tax
AOCI before Tax, Attributable to Parent	(508)	(336)
Reclass adjustment for postretirement plan gain included in net income	86	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(761)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Prior to Curtailment, before Tax		(172)
AOCI before Tax, Attributable to Parent	(1,183)	(508)	(336)
Other Postretirement Benefit Plans | Unrecognized Pension and Postretirement Plan Income (Cost)
Gross of tax
AOCI before Tax, Attributable to Parent	(5,842)	(3,459)
Reclass adjustment for postretirement plan gain included in net income	551	258
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(761)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Prior to Curtailment, before Tax		(2,641)
AOCI before Tax, Attributable to Parent	(6,052)	(5,842)	(3,459)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(3,798)	(2,249)
Recognized component of periodic pension cost	358
Unrecognized gains arising in current year	(495)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Prior to Curtailment, Net of Tax		168
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Prior to Curtailment, Net of Tax		(1,717)
Ending Balance	$ (3,935)	$ (3,798)	$ (2,249)

Employee Benefit Plans Rates (D

Employee Benefit Plans Rates (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate-projected benefit obligation	4.00%	4.25%	3.75%
Expected long-term rate of return on plan assets	5.00%	6.00%	6.00%
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate-projected benefit obligation	4.25%	4.25%	3.75%
Expected long-term rate of return on plan assets	3.00%	3.00%	3.00%
Percentage of Increase threshold using citigroup average life discount rate table	0.25%

Employee Benefit Plans Fair Val

Employee Benefit Plans Fair Value Of Plan Assets (Details) - USD ($) $ in Thousands	Feb. 01, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets		$ 48,684	$ 46,971
Actual plan asset allocations		100.00%	100.00%
Equity securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage of assets, equity securities		50.00%
Fair value of plan assets		$ 20,625	$ 14,619
Actual plan asset allocations		42.40%	31.10%
Equity Funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets		$ 12,689	$ 8,269
Mutual Funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets		$ 7,936	6,350
Debt securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage of assets, equity securities		40.00%
Fair value of plan assets		$ 21,437	$ 24,404
Actual plan asset allocations		44.00%	52.00%
Money Market Funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets		$ 7,149	$ 8,196
Fixed Income Funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets		10,540	9,578
Corporate debt securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets		3,252	3,749
US Government Agencies Debt Securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets		$ 496	2,881
Other Alternative Investment Mutual Funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage of assets, equity securities		10.00%
Fair value of plan assets		$ 6,622	$ 7,948
Actual plan asset allocations		13.60%	16.90%
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Recognized net gain (loss) due to curtailments	$ 1,500
Effect of curtailment	$ 3,400
Fair value of plan assets		$ 3	$ 15	$ 8

Employee Benefit Plans Expected

Employee Benefit Plans Expected benefits (Details) $ in Thousands	Dec. 31, 2016USD ($)
Pension Plans
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2,017	$ 3,409
2,018	3,742
2,019	3,831
2,020	4,213
2,021	4,410
2022-2026	24,219
Defined Benefit Plan Expected Future Benefit Payments	43,824
Other Postretirement Benefit Plans
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2,017	237
2,018	222
2,019	207
2,020	193
2,021	178
2022-2026	695
Defined Benefit Plan Expected Future Benefit Payments	$ 1,732

Shareholders' Equity (Details)

Shareholders' Equity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Before-Tax Amount
Unrealized loss on securities	$ (22,907)	$ (11,872)	$ 51,901
Reclassification adjustment for securities gains included in net income (1)	(2,550)	(9,066)	(2,041)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax		3,778
Non-credit related unrealized loss on other-than-temporarily impaired debt securities	(285)	368	1,200
Amortization of unrealized loss on derivative financial instruments (2)	25	115	209
Unrecognized pension and postretirement cost	(1,432)	7,200	(20,258)
Amortization of net unrecognized pension and postretirement items (3)	1,869	2,869	627
Total Other Comprehensive Loss	(25,280)	(6,608)	30,186
Tax Effect
Unrealized loss on securities	8,016	4,155	(18,167)
Reclassification adjustment for securities gains included in net income (1)	893	3,174	714
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax		(1,322)
Non-credit related unrealized loss on other-than-temporarily impaired debt securities	100	(129)	(420)
Amortization of unrealized loss on derivative financial instruments (2)	(9)	(40)	(73)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax			(508)
Unrecognized pension and postretirement cost	501	(2,520)	7,090
Amortization of net unrecognized pension and postretirement items (3)	(653)	(1,005)	(219)
Total Other Comprehensive Loss	8,848	2,313	(10,567)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax			(944)
Net of Tax Amount
Unrealized loss on securities	(14,891)	(7,717)	33,734
Reclassification adjustment for securities gains included in net income (1)	(1,657)	(5,892)	(1,327)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0	2,456	0
Non-credit related unrealized loss on other-than-temporarily impaired debt securities	(185)	239	780
Amortization of unrealized loss on derivative financial instruments (2)	16	75	136
Unrecognized pension and postretirement cost	(931)	4,680	(13,168)
Amortization of net unrecognized pension and postretirement items (3)	1,216	1,864	408
Total Other Comprehensive Loss	$ (16,432)	$ (4,295)	19,619
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax			$ (1,452)

Shareholders' Equity Changes in

Shareholders' Equity Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Beginning Balance	$ (22,017)	$ (17,722)	$ (37,341)
Other comprehensive income (loss) before reclassifications	(16,007)	(2,798)	20,402
Amounts reclassified from accumulated other comprehensive income (loss)	(425)	(3,953)	(783)
Reclassification adjustment for loss on derivative financial instruments included in net income	0	2,456	0
Ending Balance	(38,449)	(22,017)	(17,722)
Unrealized Gain (Losses) on Investment Securities Not Other-Than-Temporarily Impaired
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Beginning Balance	(6,499)	5,980	(27,510)
Other comprehensive income (loss) before reclassifications	(14,891)	(7,717)	33,734
Amounts reclassified from accumulated other comprehensive income (loss)	(1,657)	(4,762)	(244)
Reclassification adjustment for loss on derivative financial instruments included in net income		0
Ending Balance	(23,047)	(6,499)	5,980
Unrealized Non-Credit Gains (Losses) on Other-Than-Temporarily Impaired Debt Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Beginning Balance	458	1,349	1,652
Other comprehensive income (loss) before reclassifications	(185)	239	780
Amounts reclassified from accumulated other comprehensive income (loss)	0	(1,130)	(1,083)
Reclassification adjustment for loss on derivative financial instruments included in net income		0
Ending Balance	273	458	1,349
Unrealized Effective Portions of Losses on Forward-Starting Interest Rate Swaps
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Beginning Balance	(15)	(2,546)	(2,682)
Other comprehensive income (loss) before reclassifications	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	15	75	136
Reclassification adjustment for loss on derivative financial instruments included in net income		2,456
Ending Balance	0	(15)	(2,546)
Unrecognized Pension and Postretirement Plan Income (Cost)
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Beginning Balance	(15,961)	(22,505)	(8,801)
Other comprehensive income (loss) before reclassifications	(931)	4,680	(14,112)
Amounts reclassified from accumulated other comprehensive income (loss)	1,217	1,864	408
Reclassification adjustment for loss on derivative financial instruments included in net income		0
Ending Balance	$ (15,675)	$ (15,961)	$ (22,505)

Shareholders' Equity Common Sto

Shareholders' Equity Common Stock Repurchase Plans (Details) - USD ($)	1 Months Ended			6 Months Ended	12 Months Ended
	Nov. 30, 2016	Apr. 30, 2015	Nov. 30, 2014	Apr. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Equity, Class of Treasury Stock [Line Items]
Common stock repurchase amount					$ 18,545,000	$ 50,000,000	$ 175,255,000
Acquisition of treasury stock					(18,545,000)	(50,000,000)	$ (175,255,000)
Common Stock
Equity, Class of Treasury Stock [Line Items]
Common stock repurchase amount						$ 95,200,000
Average cost per share of treasury stock acquired (usd per share)						$ 11.91
Acquisition of treasury stock (in shares)						(8,000,000)
Common Stock | Accelerated Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Treasury stock, value			$ 100,000,000
Common stock repurchase amount		$ 100,000,000
Average cost per share of treasury stock acquired (usd per share)				$ 12.05
Acquisition of treasury stock			$ (100,000,000)
Acquisition of treasury stock (in shares)		(1,800,000)	(6,500,000)	(8,300,000)
Percent of common shares outstanding, expected to be delivered			80.00%
Common Stock | April 2015 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Treasury stock, value		$ 50,000,000		$ 50,000,000
Common stock repurchase amount						$ 50,000,000
Average cost per share of treasury stock acquired (usd per share)						$ 12.57
Acquisition of treasury stock (in shares)						(4,000,000)
Percent of common shares outstanding, expected to be delivered		2.30%
Common Stock | November 2016 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Treasury stock, value	$ 50,000,000
Common stock repurchase amount					$ 18,500,000
Average cost per share of treasury stock acquired (usd per share)					$ 12.48
Remaining repurchase amount					$ 31,500,000
Acquisition of treasury stock (in shares)					(1,500,000)
Percent of common shares outstanding, expected to be delivered	2.30%

Stock-Based Compensation Plan99

Stock-Based Compensation Plans Compensation Expense and Related Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 6,556	$ 5,938	$ 5,865
Tax benefits as a percentage of compensation expense	40.90%	33.90%	27.40%
Statutory tax rate	35.00%	35.00%	35.00%
Restricted Stock/RSUs/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 6,165	$ 4,646	$ 4,345
Tax benefit	(2,158)	(1,626)	(1,510)
Stock-based compensation, net of tax	4,007	3,020	2,835
Stock Options And Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	6,556	5,938	5,865
Tax benefit	(2,679)	(2,011)	(1,608)
Stock-based compensation, net of tax	$ 3,877	$ 3,927	$ 4,257

Stock-Based Compensation Pla100

Stock-Based Compensation Plans Options Activity (Details) - Stock Options - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options
Outstanding as of December 31, 2015	2,980,087
Granted			288,626
Exercised	(920,924)
Forfeited	(263,685)
Expired	(465,295)
Outstanding as of December 31, 2016	1,330,183	2,980,087
Exercisable as of December 31, 2016	1,247,736
Weighted Average Exercise Price
Outstanding as of December 31, 2013 (usd per share)	$ 12.31
Exercised (usd per share)	11.70
Forfeited (usd per share)	14.33
Expired (usd per share)	16.19
Outstanding as of December 31, 2014 (usd per share)	10.98	$ 12.31
Exercisable as of December 31, 2014 (usd per share)	$ 10.87
Weighted Average Remaining Contractual Term, Outstanding	4 years 8 months 12 days
Weighted Average Remaining Contractual Term, Exercisable	4 years 6 months
Additional Disclosures [Abstract]
Outstanding, Aggregate Intrinsic Value	$ 10,400,000
Exercisable, Aggregate Intrinsic Value	9,900,000
Number of options exercised	920,924	$ 490,151	$ 215,047
Total intrinsic value of options exercised	4,619,000	1,442,000	568,000
Cash received from options exercised	10,240,000	4,936,000	2,068,000
Tax deduction realized from options exercised	$ 4,328,000	$ 1,389,000	$ 530,000

Stock-Based Compensation Pla101

Stock-Based Compensation Plans Nonvested (Details)	12 Months Ended
	Dec. 31, 2016$ / sharesshares
Nonvested Stock Options
Options
Nonvested as of December 31, 2015 | shares	349,852
Granted | shares	0
Vested | shares	(247,727)
Forfeited | shares	(19,678)
Nonvested as of December 31, 2016 | shares	82,447
Weighted Average Grant Date Fair Value
Nonvested as of December 31, 2013 (usd per share) | $ / shares	$ 2.82
Granted (usd per share) | $ / shares	0
Vested (usd per share) | $ / shares	2.71
Forfeited (usd per share) | $ / shares	2.84
Nonvested as of December 31, 2014 (usd per share) | $ / shares	$ 3.14
Restricted Stock/RSUs/PSUs
Options
Nonvested as of December 31, 2015 | shares	1,388,389
Granted | shares	447,130
Vested | shares	(292,583)
Forfeited | shares	(17,221)
Nonvested as of December 31, 2016 | shares	1,525,715
Weighted Average Grant Date Fair Value
Nonvested as of December 31, 2013 (usd per share) | $ / shares	$ 12.16
Granted (usd per share) | $ / shares	13.86
Vested (usd per share) | $ / shares	11.73
Forfeited (usd per share) | $ / shares	12.20
Nonvested as of December 31, 2014 (usd per share) | $ / shares	$ 12.74

Stock-Based Compensation Pla102

Stock-Based Compensation Plans Assumptions (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate		2.44%
Volatility of Corporation’s stock		28.05%
Expected dividend yield		2.36%
Expected life of options		7 years
Restricted Stock/RSUs/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.92%	0.86%	0.91%
Volatility of Corporation’s stock	20.75%	20.08%	29.63%
Expected life of options	3 years	3 years	3 years

Stock-Based Compensation Pla103

Stock-Based Compensation Plans ESPP (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Percentage of fair value at purchase date	85.00%
Discount from market price, purchase date	15.00%
ESPP shares purchased	109,665	121,890	132,640
Average purchase price per share (85% of market value)	$ 12.37	$ 10.86	$ 10.31
Compensation expense recognized (in thousands)	$ 240	$ 234	$ 241

Stock-Based Compensation Pla104

Stock-Based Compensation Plans Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Statutory tax rate	35.00%	35.00%	35.00%
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 8.4
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	2 years
Percentage of fair value at purchase date	85.00%
Discount from market price, purchase date	15.00%
Employee Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future grants under the stock option and compensation plan	11,400,000
Directors' Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future grants under the stock option and compensation plan	371,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value, options granted (in dollars per share)			$ 3.14
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures			288,626
Expected life of options		7 years
Non Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures			50,000
Restricted Stock/RSUs/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value, options granted (in dollars per share)	$ 11.23
Expected life of options	3 years	3 years	3 years

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Leases [Abstract]
Rent expense	$ 18,400	$ 18,100	$ 18,100
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,017	16,330
2,018	14,206
2,019	12,286
2,020	11,040
2,021	9,396
Thereafter	44,395
Total	$ 107,653

Outstanding Commitments to Exte

Outstanding Commitments to Extend Credit and Letters of Credit (Details) - Reserve for Off-balance Sheet Activities - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Valuation allowances and reserves	$ 395,260	$ 414,258
Commercial and other
Valuation allowances and reserves	3,673,815	3,518,960
Home equity
Valuation allowances and reserves	1,368,465	1,300,062
Commerical mortgage and construction
Valuation allowances and reserves	1,033,287	965,116
Total commitments to extend credit
Valuation allowances and reserves	6,075,567	5,784,138
Standby letters of credit
Valuation allowances and reserves	356,359	374,729
Commercial letters of credit
Valuation allowances and reserves	$ 38,901	$ 39,529

Commitments and Contingencies N

Commitments and Contingencies Narrative (Details) $ in Thousands	Mar. 31, 2016USD ($)defendantplaintiff	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Loss Contingencies [Line Items]
Residential mortgage principal balance repurchase request received		$ 543
Residential mortgage principal balance FHLB credit enhancement		104,000
Residential mortgage repurchase reserves FHLB credit enhancement		1,700	$ 1,800
Agostino, et al. v. Ameriprise Financial Services, Inc
Loss Contingencies [Line Items]
Number of unrelated defendants | defendant	2
Amount alleged in damages	$ 11,300
Reserve for Off-balance Sheet Activities
Loss Contingencies [Line Items]
Valuation allowances and reserves		395,260	414,258
Reserve for Off-balance Sheet Activities | Residential Mortgage
Loss Contingencies [Line Items]
Valuation allowances and reserves		$ 2,500	$ 2,600
Pending Litigation [Member] | Agostino, et al. v. Ameriprise Financial Services, Inc
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff	67

Fair Value Measurements Assets

Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Securities available for sale	$ 2,559,227	$ 2,484,773
Equity securities
Securities available for sale	24,526	21,514
U.S. Government sponsored agency securities
Securities available for sale	134	25,136
State and municipal securities
Securities available for sale	391,641	262,765
Corporate debt securities
Securities available for sale	109,409	96,955
Collateralized mortgage obligations
Securities available for sale	593,860	821,509
Mortgage-backed securities
Securities available for sale	1,342,401	1,158,835
Auction rate securities
Securities available for sale	97,256	98,059
Fair Value, Measurements, Recurring
Mortgage loans held for sale	28,697	16,886
Securities available for sale	2,559,227	2,484,773
Other financial assets	61,592	50,594
Total assets	2,649,516	2,552,253
Other financial liabilities	58,766	48,924
Fair Value, Measurements, Recurring | Equity securities
Securities available for sale	24,526	21,514
Fair Value, Measurements, Recurring | U.S. Government sponsored agency securities
Securities available for sale	134	25,136
Fair Value, Measurements, Recurring | State and municipal securities
Securities available for sale	391,641	262,765
Fair Value, Measurements, Recurring | Corporate debt securities
Securities available for sale	109,409	96,955
Fair Value, Measurements, Recurring | Collateralized mortgage obligations
Securities available for sale	593,860	821,509
Fair Value, Measurements, Recurring | Mortgage-backed securities
Securities available for sale	1,342,401	1,158,835
Fair Value, Measurements, Recurring | Auction rate securities
Securities available for sale	97,256	98,059
Fair Value, Measurements, Recurring | Level 1
Mortgage loans held for sale	0	0
Securities available for sale	24,526	21,514
Other financial assets	17,111	16,129
Total assets	41,637	37,643
Other financial liabilities	17,032	15,914
Fair Value, Measurements, Recurring | Level 1 | Equity securities
Securities available for sale	24,526	21,514
Fair Value, Measurements, Recurring | Level 1 | U.S. Government sponsored agency securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 1 | State and municipal securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Corporate debt securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Collateralized mortgage obligations
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Mortgage-backed securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Auction rate securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 2
Mortgage loans held for sale	28,697	16,886
Securities available for sale	2,434,573	2,361,864
Other financial assets	44,481	34,465
Total assets	2,507,751	2,413,215
Other financial liabilities	41,734	33,010
Fair Value, Measurements, Recurring | Level 2 | Equity securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 2 | U.S. Government sponsored agency securities
Securities available for sale	134	25,136
Fair Value, Measurements, Recurring | Level 2 | State and municipal securities
Securities available for sale	391,641	262,765
Fair Value, Measurements, Recurring | Level 2 | Corporate debt securities
Securities available for sale	106,537	93,619
Fair Value, Measurements, Recurring | Level 2 | Collateralized mortgage obligations
Securities available for sale	593,860	821,509
Fair Value, Measurements, Recurring | Level 2 | Mortgage-backed securities
Securities available for sale	1,342,401	1,158,835
Fair Value, Measurements, Recurring | Level 2 | Auction rate securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 3
Mortgage loans held for sale	0	0
Securities available for sale	100,128	101,395
Other financial assets	0	0
Total assets	100,128	101,395
Other financial liabilities	0	0
Fair Value, Measurements, Recurring | Level 3 | Equity securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 3 | U.S. Government sponsored agency securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 3 | State and municipal securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 3 | Corporate debt securities
Securities available for sale	2,872	3,336
Fair Value, Measurements, Recurring | Level 3 | Collateralized mortgage obligations
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 3 | Mortgage-backed securities
Securities available for sale	0	0
Fair Value, Measurements, Recurring | Level 3 | Auction rate securities
Securities available for sale	$ 97,256	$ 98,059

Fair Value Measurements Changes

Fair Value Measurements Changes in Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Level 3 Inputs (Details) - Fair Value, Measurements, Recurring - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Pooled trust preferred securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	$ 706	$ 4,088
Unrealized adjustment to fair value	(286)	366
Sales		(3,633)
Discount accretion	2	2
Balance, end of period	422	706
Pooled trust preferred securities | Call Option [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Settlements - calls		(117)
Single-issuer trust preferred securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	2,630	3,820
Unrealized adjustment to fair value	(190)	(230)
Sales		0
Discount accretion	10	10
Balance, end of period	2,450	2,630
Single-issuer trust preferred securities | Call Option [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Settlements - calls		(970)
Auction rate securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	98,059	100,941
Unrealized adjustment to fair value	(1,246)	(903)
Sales		0
Discount accretion	443	467
Balance, end of period	$ 97,256	98,059
Auction rate securities | Call Option [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Settlements - calls		$ (2,446)

Fair Value Measurements Asse110

Fair Value Measurements Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Net loans	$ 132,576	$ 138,491
Total assets	182,923	190,534
Other Assets
Other financial assets	50,347	52,043
Level 1
Net loans	0	0
Total assets	0	0
Level 1 | Other Assets
Other financial assets	0	0
Level 2
Net loans	0	0
Total assets	0	0
Level 2 | Other Assets
Other financial assets	0	0
Level 3
Net loans		138,491
Total assets	182,923	190,534
Level 3 | Other Assets
Other financial assets	$ 50,347	$ 52,043

Fair Value Measurements Details

Fair Value Measurements Details of Book Value and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Securities available for sale	$ 2,559,227	$ 2,484,773
FHLB advances and long-term debt	929,403	949,542
Book Value
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Loans held for sale	28,697	16,886
Loans, net of unearned income	14,530,593	13,669,548
Accrued interest receivable	46,294	42,767
Short-term borrowings	541,317	497,663
Accrued interest payable	9,632	10,724
FHLB advances and long-term debt	929,403	949,542
Book Value | Cash and due from banks
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Cash and due from banks	118,763	101,120
Book Value | Interest-bearing Deposits
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Interest-bearing deposits with other banks	233,763	230,300
Federal Reserve Bank and FHLB stock	57,489	62,216
Book Value | Available-for-sale Securities
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Securities available for sale	2,559,227	2,484,773
Book Value | Other Assets
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Other financial assets	206,132	166,920
Book Value | Deposits
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Demand and savings deposits	12,259,622	11,267,367
Time deposits	2,753,242	2,864,950
Book Value | Other financial liabilities
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Other financial liabilities	216,080	190,927
Estimated Fair Value
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Loans held for sale	28,697	16,886
Loans, net of unearned income	14,387,454	13,540,903
Accrued interest receivable	46,294	42,767
Short-term borrowings	541,317	497,663
Accrued interest payable	9,632	10,724
FHLB advances and long-term debt	928,167	959,315
Estimated Fair Value | Cash and due from banks
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Cash and due from banks	118,763	101,120
Estimated Fair Value | Interest-bearing Deposits
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Interest-bearing deposits with other banks	233,763	230,300
Federal Reserve Bank and FHLB stock	57,489	62,216
Estimated Fair Value | Available-for-sale Securities
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Securities available for sale	2,559,227	2,484,773
Estimated Fair Value | Other Assets
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Other financial assets	206,132	166,920
Estimated Fair Value | Deposits
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Demand and savings deposits	12,259,622	11,267,367
Time deposits	2,769,757	2,862,868
Estimated Fair Value | Other financial liabilities
Fair Value, Balance Sheet Grouping, FinancialStatement Captions[Line Items]
Other financial liabilities	$ 216,080	$ 190,927

Fair Value Measurements Narrati

Fair Value Measurements Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Equity securities, value test coverage	80.00%
Fair value price difference threshold	5.00%
Estimated Fair Value	$ 2,534,701
Other real estate owned (OREO)	$ 12,815	$ 11,099
Assumed market return to liquidity	5 years
Equity Securities Financial Institution
Available-for-sale securities, equity securities	$ 23,500	20,600
Equity Securities, Miscellaneous
Available-for-sale securities, equity securities	1,003	900
Corporate debt securities
Estimated Fair Value	109,409	96,955
Single-issuer trust preferred securities
Estimated Fair Value	39,829	39,106
Pooled trust preferred securities
Estimated Fair Value	422	706
Level 3 | Other Assets
Other real estate owned (OREO)	12,800	11,100
Net MSRs at end of year	37,500	40,900
Fair Value, Measurements, Recurring
Other financial assets	61,592	50,594
Other financial liabilities	58,766	48,924
Fair Value, Measurements, Recurring | Single-issuer trust preferred securities
Estimated Fair Value	39,800	39,100
Fair Value, Measurements, Recurring | Level 1
Other financial assets	17,111	16,129
Other financial liabilities	17,032	15,914
Fair Value, Measurements, Recurring | Level 1 | Equity Securities Financial Institution
Available-for-sale securities, equity securities	23,500	20,600
Fair Value, Measurements, Recurring | Level 1 | Equity Securities, Miscellaneous
Available-for-sale securities, equity securities	1,000	900
Fair Value, Measurements, Recurring | Level 2
Other financial assets	44,481	34,465
Other financial liabilities	41,734	33,010
Fair Value, Measurements, Recurring | Level 2 | Financial Institutions Subordinated Debt
Estimated Fair Value	65,200	53,100
Fair Value, Measurements, Recurring | Level 2 | Single-issuer trust preferred securities
Estimated Fair Value	37,300	36,500
Fair Value, Measurements, Recurring | Level 2 | Other Corporate Debt
Estimated Fair Value	4,000	4,000
Fair Value, Measurements, Recurring | Level 3
Other financial assets	0	0
Other financial liabilities	0	0
Fair Value, Measurements, Recurring | Level 3 | Single-issuer trust preferred securities
Estimated Fair Value	2,500	2,600
Fair Value, Measurements, Recurring | Level 3 | Pooled trust preferred securities
Estimated Fair Value	$ 422	700
Minimum
Assumptions used to estimate fair value, prepayment speed	12.60%
Assumptions used to estimate fair value, discount rate	10.10%
Trust for Benefit of Employees | Fair Value, Measurements, Recurring | Level 1
Other financial assets	$ 16,400	15,600
Foreign Exchange Contract | Fair Value, Measurements, Recurring | Level 1
Other financial assets	745	500
Forward Commitments | Fair Value, Measurements, Recurring | Level 2
Other financial assets	3,100	1,500
Other financial liabilities	339	0
Interest Rate Swap | Fair Value, Measurements, Recurring | Level 2
Other financial assets	41,400	33,000
Other financial liabilities	41,400	33,000
Foreign Exchange Contract | Fair Value, Measurements, Recurring | Level 1
Other financial liabilities	668	300
Trust for Benefit of Employees | Fair Value, Measurements, Recurring | Level 1
Other financial liabilities	$ 16,400	$ 15,600
Short Term Financial Instruments
Short term borrowings, reprice period	90

Condensed Financial Informat113

Condensed Financial Information - Parent Company Only Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets [Abstract]
Other assets	$ 620,059	$ 550,017
Investments in:
Total Assets	18,944,247	17,914,718
Other liabilities	329,916	282,578
Total Liabilities	16,823,132	15,872,824
Shareholders' Equity [Abstract]
Shareholders’ equity	2,121,115	2,041,894	$ 1,996,665	$ 2,063,187
Total Liabilities and Shareholders’ Equity	18,944,247	17,914,718
Parent
Assets [Abstract]
Cash	8,568	0	$ 137	$ 8
Other assets	5,648	4,337
Receivable from subsidiaries	46,715	29,249
Investments in:
Bank subsidiaries	2,265,264	2,226,975
Non-bank subsidiaries	417,615	408,187
Total Assets	2,743,810	2,668,748
Long-term debt	362,005	361,504
Payable to non-bank subsidiaries	183,152	188,087
Other liabilities	77,538	77,263
Total Liabilities	622,695	626,854
Shareholders' Equity [Abstract]
Shareholders’ equity	2,121,115	2,041,894
Total Liabilities and Shareholders’ Equity	$ 2,743,810	$ 2,668,748

Condensed Financial Informat114

Condensed Financial Information - Parent Company Only Income statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Total Non-Interest Income	$ 190,178	$ 181,839	$ 167,379
Income Before Income Taxes	208,249	199,423	210,500
Income tax benefit	46,624	49,921	52,606
Net Income	161,625	149,502	157,894
Parent
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiaries	115,000	114,000	139,150
Other (1)	148,577	141,241	120,543
Total Non-Interest Income	263,577	255,241	259,693
Expenses	177,835	176,457	152,243
Income Before Income Taxes	85,742	78,784	107,450
Income tax benefit	(10,543)	(11,834)	(10,549)
Income before equity in undistributed income of subsidiaries	96,285	90,618	117,999
Net Income	161,625	149,502	157,894
Parent | Bank subsidiaries
Condensed Financial Statements, Captions [Line Items]
Non-bank subsidiaries	58,477	60,806	33,134
Parent | Non-bank subsidiaries
Condensed Financial Statements, Captions [Line Items]
Non-bank subsidiaries	$ 6,863	$ (1,922)	$ 6,761

Condensed Financial Informat115

Condensed Financial Information - Parent Company Only Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows From Operating Activities:
Net Income	$ 161,625	$ 149,502	$ 157,894
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities [Abstract]
Stock-based compensation	6,556	5,938	5,865
Excess tax benefits from stock-based compensation	(964)	(201)	(81)
(Increase) decrease in other assets	(29,940)	(22,987)	(23,619)
Loss on redemption of trust preferred securities	0	5,626	0
(Decrease) increase in other liabilities and payable to non-bank subsidiaries	4,427	4,928	1,522
Total adjustments	23,785	28,042	52,815
Net cash provided by operating activities	185,410	177,544	210,709
Cash Flows From Investing Activities
Net cash used in investing activities	(1,000,416)	(818,027)	(275,448)
Cash Flows From Financing Activities:
Repayments of long-term debt	(236,640)	(540,079)	(6,621)
Additions to long-term debt	215,884	347,778	262,113
Net proceeds from issuance of common stock	16,167	10,607	8,201
Excess tax benefits from stock-based compensation	964	201	81
Dividends paid	(69,382)	(65,361)	(64,028)
Acquisition of treasury stock	(18,545)	(50,000)	(175,255)
Deferred accelerated stock repurchase payment	0	0	(20,000)
Deferred accelerated stock repurchase payment	18,545	50,000	175,255
Net cash provided by (used in) financing activities	832,649	635,901	(48,099)
Net Increase (Decrease) in Cash and Cash Equivalents	17,643	(4,582)	(112,838)
Parent
Cash Flows From Operating Activities:
Net Income	161,625	149,502	157,894
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities [Abstract]
Stock-based compensation	6,556	5,938	5,865
Excess tax benefits from stock-based compensation	(964)	(201)	(81)
(Increase) decrease in other assets	(16,585)	2,806	(7,120)
Equity in undistributed net income of subsidiaries	(65,340)	(58,884)	(39,895)
Loss on redemption of trust preferred securities	0	5,626	0
(Decrease) increase in other liabilities and payable to non-bank subsidiaries	(5,928)	106,490	37,354
Total adjustments	(82,261)	61,775	(3,877)
Net cash provided by operating activities	79,364	211,277	154,017
Cash Flows From Financing Activities:
Repayments of long-term debt	0	(254,640)	0
Additions to long-term debt	0	147,779	97,113
Net proceeds from issuance of common stock	16,167	10,607	8,201
Excess tax benefits from stock-based compensation	964	201	81
Dividends paid	(69,382)	(65,361)	(64,028)
Acquisition of treasury stock	(18,545)	(50,000)	(175,255)
Deferred accelerated stock repurchase payment	0	0	(20,000)
Net cash provided by (used in) financing activities	(70,796)	(211,414)	(153,888)
Net Increase (Decrease) in Cash and Cash Equivalents	8,568	(137)	129
Cash and Cash Equivalents at Beginning of Year	0	137	8
Cash and Cash Equivalents at End of Year	$ 8,568	$ 0	$ 137