Bank of Hawaii (BOH) 10-Q 24 Apr 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Apr. 18, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	BANK OF HAWAII CORP
Entity Central Index Key	46,195
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		42,712,690
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest Income
Interest and Fees on Loans and Leases	$ 87,937	$ 80,895
Income on Investment Securities
Available-for-Sale	11,084	10,814
Held-to-Maturity	19,706	20,391
Deposits	5	4
Funds Sold	890	753
Other	230	212
Total Interest Income	119,852	113,069
Interest Expense
Deposits	3,691	2,886
Securities Sold Under Agreements to Repurchase	5,185	6,153
Funds Purchased	3	3
Other Debt	1,101	1,003
Total Interest Expense	9,980	10,045
Net Interest Income	109,872	103,024
Provision for Credit Losses	4,400	(2,000)
Net Interest Income After Provision for Credit Losses	105,472	105,024
Noninterest Income
Trust and Asset Management	11,479	11,256
Mortgage Banking	3,300	3,189
Service Charges on Deposit Accounts	8,325	8,443
Fees, Exchange, and Other Service Charges	13,332	13,444
Investment Securities Gains, Net	12,133	11,180
Annuity and Insurance	1,995	1,901
Bank-Owned Life Insurance	1,497	1,548
Other	3,855	5,246
Total Noninterest Income	55,916	56,207
Noninterest Expense
Salaries and Benefits	51,602	50,514
Net Occupancy	8,168	7,003
Net Equipment	5,501	5,409
Data Processing	3,410	3,951
Professional Fees	2,779	2,639
FDIC Insurance	2,209	2,352
Other	14,899	15,518
Total Noninterest Expense	88,568	87,386
Income Before Provision for Income Taxes	72,820	73,845
Provision for Income Taxes	21,644	23,635
Net Income	$ 51,176	$ 50,210
Basic Earnings Per Share (in dollars per share)	$ 1.21	$ 1.17
Diluted Earnings Per Share (in dollars per share)	1.20	1.16
Dividends Declared Per Share (in dollars per share)	$ 0.5	$ 0.45
Basic Weighted Average Shares (in shares)	42,406,006	42,920,794
Diluted Weighted Average Shares (in shares)	42,749,866	43,126,526

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 51,176	$ 50,210
Other Comprehensive Income, Net of Tax:
Net Unrealized Gains on Investment Securities	4,894	8,694
Defined Benefit Plans	146	141
Total Other Comprehensive Income	5,040	8,835
Comprehensive Income	$ 56,216	$ 59,045

Consolidated Statements of Cond

Consolidated Statements of Condition (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Interest-Bearing Deposits in Other Banks	$ 3,486	$ 3,187
Funds Sold	620,065	707,343
Investment Securities
Available-for-Sale	2,341,570	2,186,041
Held-to-Maturity (Fair Value of $3,848,609 and $3,827,527)	3,848,088	3,832,997
Loans Held for Sale	20,899	62,499
Loans and Leases	9,113,809	8,949,785
Allowance for Loan and Lease Losses	(105,064)	(104,273)
Net Loans and Leases	9,008,745	8,845,512
Total Earning Assets	15,842,853	15,637,579
Cash and Due From Banks	119,972	169,077
Premises and Equipment, Net	114,865	113,505
Accrued Interest Receivable	48,654	46,444
Foreclosed Real Estate	2,529	1,686
Mortgage Servicing Rights	24,291	23,663
Goodwill	31,517	31,517
Bank-Owned Life Insurance	275,685	274,188
Other Assets	203,849	194,708
Total Assets	16,664,215	16,492,367
Deposits
Noninterest-Bearing Demand	4,593,783	4,772,727
Interest-Bearing Demand	2,886,573	2,934,107
Savings	5,596,080	5,395,699
Time	1,400,097	1,217,707
Total Deposits	14,476,533	14,320,240
Funds Purchased	4,616	9,616
Securities Sold Under Agreements to Repurchase	505,292	523,378
Other Debt	267,921	267,938
Retirement Benefits Payable	48,436	48,451
Accrued Interest Payable	6,410	5,334
Taxes Payable and Deferred Taxes	42,046	21,674
Other Liabilities	119,824	134,199
Total Liabilities	15,471,078	15,330,830
Shareholders’ Equity
Common Stock ($.01 par value; authorized 500,000,000 shares; issued / outstanding: March 31, 2017 - 57,962,462 / 42,736,032 and December 31, 2016 - 57,856,672 / 42,635,978)	576	576
Capital Surplus	553,898	551,628
Accumulated Other Comprehensive Loss	(28,866)	(33,906)
Retained Earnings	1,444,495	1,415,440
Treasury Stock, at Cost (Shares: March 31, 2017 - 15,226,430 and December 31, 2016 - 15,220,694)	(776,966)	(772,201)
Total Shareholders’ Equity	1,193,137	1,161,537
Total Liabilities and Shareholders’ Equity	$ 16,664,215	$ 16,492,367

Consolidated Statements of Con5

Consolidated Statements of Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Held-to-Maturity: Fair Value	$ 3,848,609	$ 3,827,527
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized shares	500,000,000	500,000,000
Common Stock, issued shares	57,962,462	57,856,672
Common Stock, outstanding shares	42,736,032	42,635,978
Treasury Stock, Shares	15,226,430	15,220,694

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Capital Surplus	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock
Balance at Beginning of Period at Dec. 31, 2015	$ 1,116,260	$ 575	$ 542,041	$ (23,557)	$ 1,316,260	$ (719,059)
Beginning Balance (in shares) at Dec. 31, 2015		43,282,153
Increase (decrease) in shareholders' equity
Net Income	50,210				50,210
Other Comprehensive Income	8,835			8,835
Share-Based Compensation	1,599		1,599
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits	2,771	$ 1	627		368	1,775
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits (in shares)		141,083
Common Stock Repurchased	(21,458)					(21,458)
Common Stock Repurchased (in shares)		(342,733)
Cash Dividends Declared ($0.50 per share)	(19,464)				(19,464)
Balance at End of Period at Mar. 31, 2016	1,138,753	$ 576	544,267	(14,722)	1,347,374	(738,742)
Ending Balance (in shares) at Mar. 31, 2016		43,080,503
Balance at Beginning of Period at Dec. 31, 2016	$ 1,161,537	$ 576	551,628	(33,906)	1,415,440	(772,201)
Beginning Balance (in shares) at Dec. 31, 2016	42,635,978	42,635,978
Increase (decrease) in shareholders' equity
Net Income	$ 51,176				51,176
Other Comprehensive Income	5,040			5,040
Share-Based Compensation	1,735		1,735
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits	6,577	$ 0	535		(702)	6,744
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits (in shares)		235,803
Common Stock Repurchased	(11,509)					(11,509)
Common Stock Repurchased (in shares)		(135,749)
Cash Dividends Declared ($0.50 per share)	(21,419)				(21,419)
Balance at End of Period at Mar. 31, 2017	$ 1,193,137	$ 576	$ 553,898	$ (28,866)	$ 1,444,495	$ (776,966)
Ending Balance (in shares) at Mar. 31, 2017	42,736,032	42,736,032

Consolidated Statements of Sha7

Consolidated Statements of Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Stockholders' Equity [Abstract]
Dividends Declared Per Share (in dollars per share)	$ 0.5	$ 0.45

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating Activities
Net Income	$ 51,176	$ 50,210
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Credit Losses	4,400	(2,000)
Depreciation and Amortization	3,280	3,305
Amortization of Deferred Loan and Lease Fees	(427)	(365)
Amortization and Accretion of Premiums/Discounts on Investment Securities, Net	10,130	11,208
Share-Based Compensation	1,735	1,599
Benefit Plan Contributions	(334)	(325)
Deferred Income Taxes	9,161	(1,129)
Net Gains on Sales of Loans and Leases	(2,168)	(3,253)
Net Gains on Sales of Investment Securities	(12,133)	(11,180)
Proceeds from Sales of Loans Held for Sale	68,884	32,545
Originations of Loans Held for Sale	(73,983)	(43,511)
Net Tax Benefit from Share-Based Compensation	1,900	0
Excess Tax Benefits from Share-Based Compensation	0	(311)
Net Change in Other Assets and Other Liabilities	(19,942)	4,826
Net Cash Provided by Operating Activities	41,679	41,619
Investment Securities Available-for-Sale:
Proceeds from Prepayments and Maturities	81,895	92,459
Proceeds from Sales	12,133	11,180
Purchases	(234,979)	(120,793)
Investment Securities Held-to-Maturity:
Proceeds from Prepayments and Maturities	161,465	167,913
Purchases	(181,048)	(102,322)
Net Change in Loans and Leases	(198,531)	(199,854)
Proceeds from Sales of Loans	79,169	19,055
Premises and Equipment, Net	(4,640)	(3,192)
Net Cash Used in Investing Activities	(284,536)	(135,554)
Financing Activities
Net Change in Deposits	156,293	237,789
Net Change in Short-Term Borrowings	(23,086)	(41,664)
Proceeds from Long-Term Debt	0	25,000
Repayments of Long-Term Debt	0	(50,000)
Excess Tax Benefits from Share-Based Compensation	0	311
Proceeds from Issuance of Common Stock	6,494	2,371
Repurchase of Common Stock	(11,509)	(21,458)
Cash Dividends Paid	(21,419)	(19,464)
Net Cash Provided by Financing Activities	106,773	132,885
Net Change in Cash and Cash Equivalents	(136,084)	38,950
Cash and Cash Equivalents at End of Period	743,523	794,671
Cash and Cash Equivalents at Beginning of Period	879,607	755,721
Supplemental Information
Cash Paid for Interest	8,905	9,416
Cash Paid for Income Taxes	1,822	999
Non-Cash Investing Activities:
Transfer from Loans to Foreclosed Real Estate	843	1,040
Transfers from Loans to Loans Held for Sale	$ 30,477	$ 18,757

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation Bank of Hawaii Corporation (the “Parent”) is a Delaware corporation and a bank holding company headquartered in Honolulu, Hawaii. Bank of Hawaii Corporation and its subsidiaries (collectively, the “Company”) provide a broad range of financial products and services to customers in Hawaii, Guam, and other Pacific Islands. The accompanying consolidated financial statements include the accounts of the Parent and its subsidiaries. The Parent’s principal operating subsidiary is Bank of Hawaii (the “Bank”). The consolidated financial statements in this report have not been audited by an independent registered public accounting firm, but in the opinion of management, reflect all adjustments necessary for a fair presentation of the results for the interim periods. All such adjustments are of a normal recurring nature. All significant intercompany accounts and transactions have been eliminated in consolidation. Certain prior period information has been reclassified to conform to the current period presentation. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for the full fiscal year or for any future period. The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and accompanying notes required by GAAP for complete financial statements and should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 . Use of Estimates in the Preparation of Financial Statements The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. Actual results may differ from those estimates and such differences could be material to the financial statements. Variable Interest Entities Variable interests are defined as contractual ownership or other interests in an entity that change with fluctuations in an entity’s net asset value. The primary beneficiary consolidates the variable interest entity (“VIE”). The primary beneficiary is defined as the enterprise that has both the power to direct the activities of the VIE that most significantly impact the entity’s economic performance and the obligation to absorb losses or the right to receive benefits that could be significant to the VIE. The Company has limited partnership interests in several low-income housing partnerships. These partnerships provide funds for the construction and operation of apartment complexes that provide affordable housing to lower-income households. If these developments successfully attract a specified percentage of residents falling in that lower-income range, state and/or federal income tax credits are made available to the partners. The tax credits are generally recognized over 10 years. In order to continue receiving the tax credits each year over the life of the partnership, the low-income residency targets must be maintained. Prior to January 1, 2015, the Company utilized the effective yield method whereby the Company recognized tax credits generally over 10 years and amortized the initial cost of the investment to provide a constant effective yield over the period that tax credits are allocated to the Company. On January 1, 2015, the Company adopted ASU No. 2014-01, “Accounting for Investments in Qualified Affordable Housing Projects” prospectively for new investments. ASU No. 2014-01 permits reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. As permitted by ASU No. 2014-01, the Company elected to continue to utilize the effective yield method for investments made prior to January 1, 2015. Unfunded commitments to fund these low-income housing partnerships were $21.2 million and $16.2 million as of March 31, 2017 and December 31, 2016 , respectively. These unfunded commitments are unconditional and legally binding and are recorded in other liabilities in the consolidated statements of condition. See Note 5 Affordable Housing Projects Tax Credit Partnerships for more information. The Company also has limited partnership interests in solar energy tax credit partnership investments. These partnerships develop, build, own and operate solar renewable energy projects. Over the course of these investments, the Company expects to receive federal and state tax credits, tax-related benefits, and excess cash available for distribution, if any. The Company may be called to sell its interest in the limited partnerships through a call option once all investment tax credits have been recognized. Tax benefits associated with these investments are generally recognized over 6 years. These entities meet the definition of a VIE; however, the Company is not the primary beneficiary of the entities as the general partner has both the power to direct the activities that most significantly impact the economic performance of the entities and the obligation to absorb losses or the right to receive benefits that could be significant to the entities. While the partnership agreements allow the limited partners, through a majority vote, to remove the general partner, this right is not deemed to be substantive as the general partner can only be removed for cause. The investments in these entities are initially recorded at cost, which approximates the maximum exposure to loss as a result of the Company’s involvement with these unconsolidated entities. The balance of the Company’s investments in these entities was $80.9 million and $78.9 million as of March 31, 2017 and December 31, 2016 , respectively, and is included in other assets in the consolidated statements of condition. Correction of an Immaterial Error to the Financial Statements The Company determined during the fourth quarter of 2016 the proceeds from the sale of residential mortgage loans transferred from portfolio to held for sale were incorrectly reported on the consolidated statements of cash flows. The consolidated statement of cash flows for the three months ended March 31, 2016 was adjusted to decrease the originations of loans held for sale by $18.4 million , decrease the proceeds from sales of loans held for sale by $19.1 million , and decrease the net change in other assets and other liabilities by $0.1 million . The net result was a $0.8 million decrease to the net cash provided by operating activities. In addition, the net change in loans and leases was increased by $18.3 million , and a new line item, proceeds from sales of loans, was inserted for $19.1 million , resulting in a $0.8 million increase to net cash used in investing activities. Lastly, listed in the Supplemental Information section as a non-cash investing activity, transfers from loans to loans held for sale was decreased by $1.4 million . These corrections did not impact the consolidated statements of income or the consolidated statements of condition. The Company evaluated the effect of the incorrect presentation of the consolidated statements of cash flows, both qualitatively and quantitatively, and concluded it did not materially misstate the Company’s previously issued financial statements. Accounting Standards Adopted in 2017 In March 2016, the FASB issued ASU No. 2016-09, “Improvements to Employee Share-Based Payment Accounting.” This ASU includes provisions intended to simplify various aspects related to how share-based payments are accounted for and presented in the financial statements. Some of the key provisions of this new ASU include: (1) companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital (“APIC”). Instead, they will record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement, and APIC pools will be eliminated. The guidance also eliminates the requirement that excess tax benefits be realized before companies can recognize them. In addition, the guidance requires companies to present excess tax benefits as an operating activity on the statement of cash flows rather than as a financing activity; (2) increase the amount an employer can withhold to cover income taxes on awards and still qualify for the exception to liability classification for shares used to satisfy the employer’s statutory income tax withholding obligation. The new guidance will also require an employer to classify the cash paid to a tax authority when shares are withheld to satisfy its statutory income tax withholding obligation as a financing activity on its statement of cash flows (current guidance did not specify how these cash flows should be classified); and (3) permit companies to make an accounting policy election for the impact of forfeitures on the recognition of expense for share-based payment awards. Forfeitures can be estimated, as required today, or recognized when they occur. ASU No. 2016-09 is effective for interim and annual reporting periods beginning after December 15, 2016. The Company adopted ASU No. 2016-09 on January 1, 2017 and elected to recognize forfeitures as they occur. As allowed by the ASU, the Company’s adoption was prospective, therefore, prior periods have not been adjusted. The adoption of ASU No. 2016-09 could result in increased volatility to reported income tax expense related to excess tax benefits and tax deficiencies for employee share-based transactions, however, the actual amounts recognized in income tax expense will be dependent on the amount of employee share-based transactions and the stock price at the time of vesting or exercise. For the first quarter of 2017 , the adoption of ASU No. 2016-09 resulted in a decrease to the provision for income taxes primarily due to the tax benefit from the exercise of stock options and the vesting of restricted stock. Accounting Standards Pending Adoption In May 2014, the FASB and the International Accounting Standards Board (the “IASB”) jointly issued a comprehensive new revenue recognition standard that will supersede nearly all existing revenue recognition guidance under GAAP and International Financial Reporting Standards (“IFRS”). Previous revenue recognition guidance in GAAP consisted of broad revenue recognition concepts together with numerous revenue requirements for particular industries or transactions, which sometimes resulted in different accounting for economically similar transactions. In contrast, IFRS provided limited revenue recognition guidance and, consequently, could be difficult to apply to complex transactions. Accordingly, the FASB and the IASB initiated a joint project to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP and IFRS that would: (1) remove inconsistencies and weaknesses in revenue requirements; (2) provide a more robust framework for addressing revenue issues; (3) improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets; (4) provide more useful information to users of financial statements through improved disclosure requirements; and (5) simplify the preparation of financial statements by reducing the number of requirements to which an entity must refer. To meet those objectives, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers.” The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, companies generally will be required to use more judgment and make more estimates than under current guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. The standard was initially effective for public entities for interim and annual reporting periods beginning after December 15, 2016; early adoption was not permitted. However, in August 2015, the FASB issued ASU No. 2015-14, “Revenue from Contracts with Customers - Deferral of the Effective Date” which deferred the effective date by one year (i.e., interim and annual reporting periods beginning after December 15, 2017). For financial reporting purposes, the standard allows for either full retrospective adoption, meaning the standard is applied to all of the periods presented, or modified retrospective adoption, meaning the standard is applied only to the most current period presented in the financial statements with the cumulative effect of initially applying the standard recognized at the date of initial application. In addition, the FASB has begun to issue targeted updates to clarify specific implementation issues of ASU 2014-09. These updates include ASU No. 2016-08, “Principal versus Agent Considerations (Reporting Revenue Gross versus Net),” ASU No. 2016-10, “Identifying Performance Obligations and Licensing,” ASU No. 2016-12, “Narrow-Scope Improvements and Practical Expedients,” and ASU No. 2016-20 “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers.” Since the guidance does not apply to revenue associated with financial instruments, including loans and securities that are accounted for under other GAAP, the Company does not expect the new guidance to have a material impact on revenue most closely associated with financial instruments, including interest income and expense. The Company is currently performing an overall assessment of revenue streams and reviewing contracts potentially affected by the ASU including trust and asset management fees, deposit related fees, interchange fees, and merchant income, to determine the potential impact the new guidance is expected to have on the Company’s Consolidated Financial Statements. In addition, the Company continues to follow certain implementation issues relevant to the banking industry which are still pending resolution. The Company plans to adopt ASU No. 2014-09 on January 1, 2018 utilizing the modified retrospective approach. In January 2016, the FASB issued ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities.” This ASU addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments by making targeted improvements to GAAP as follows: (1) require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer; (2) simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. When a qualitative assessment indicates that impairment exists, an entity is required to measure the investment at fair value; (3) eliminate the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities; (4) eliminate the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; (5) require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (6) require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; (7) require separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (that is, securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; and (8) clarify that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. ASU No. 2016-01 is effective for interim and annual reporting periods beginning after December 15, 2017. Early application is permitted as of the beginning of the fiscal year of adoption only for provisions (3) and (6) above. Early adoption of the other provisions mentioned above is not permitted. The Company has performed a preliminary evaluation of the provisions of ASU No. 2016-01. Based on this evaluation, the Company has determined that ASU No. 2016-01 is not expected to have a material impact on the Company’s Consolidated Financial Statements; however, the Company will continue to closely monitor developments and additional guidance. In February 2016, the FASB issued ASU No. 2016-02, “Leases.” Under the new guidance, lessees will be required to recognize the following for all leases (with the exception of short-term leases): 1) a lease liability, which is the present value of a lessee’s obligation to make lease payments, and 2) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting under the new guidance remains largely unchanged as it is substantially equivalent to existing guidance for sales-type leases, direct financing leases, and operating leases. Leveraged leases have been eliminated, although lessors can continue to account for existing leveraged leases using the current accounting guidance. Other limited changes were made to align lessor accounting with the lessee accounting model and the new revenue recognition standard . All entities will classify leases to determine how to recognize lease-related revenue and expense. Quantitative and qualitative disclosures will be required by lessees and lessors to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The intention is to require enough information to supplement the amounts recorded in the financial statements so that users can understand more about the nature of an entity’s leasing activities. ASU No. 2016-02 is effective for interim and annual reporting periods beginning after December 15, 2018; early adoption is permitted. All entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. They have the option to use certain relief; full retrospective application is prohibited. The Company has several lease agreements, such as branch locations, which are currently considered operating leases, and therefore, not recognized on the Company’s consolidated statements of condition. The Company expects the new guidance will require these lease agreements to now be recognized on the consolidated statements of condition as a right-of-use asset and a corresponding lease liability. Therefore, the Company’s preliminary evaluation indicates the provisions of ASU No. 2016-02 are expected to impact the Company’s consolidated statements of condition. However, the Company continues to evaluate the extent of potential impact the new guidance will have on the Company’s Consolidated Financial Statements. In June 2016, the FASB issued ASU No. 2016-13, “Measurement of Credit Losses on Financial Instruments.” This ASU significantly changes how entities will measure credit losses for most financial assets and certain other instruments that aren’t measured at fair value through net income. In issuing the standard, the FASB is responding to criticism that today’s guidance delays recognition of credit losses. The standard will replace today’s “incurred loss” approach with an “expected loss” model. The new model, referred to as the current expected credit loss (“CECL”) model, will apply to: (1) financial assets subject to credit losses and measured at amortized cost, and (2) certain off-balance sheet credit exposures. This includes, but is not limited to, loans, leases, held-to-maturity securities, loan commitments, and financial guarantees. The CECL model does not apply to available-for-sale (“AFS”) debt securities. For AFS debt securities with unrealized losses, entities will measure credit losses in a manner similar to what they do today, except that the losses will be recognized as allowances rather than reductions in the amortized cost of the securities. As a result, entities will recognize improvements to estimated credit losses immediately in earnings rather than as interest income over time, as they do today. The ASU also simplifies the accounting model for purchased credit-impaired debt securities and loans. ASU 2016-13 also expands the disclosure requirements regarding an entity’s assumptions, models, and methods for estimating the allowance for loan and lease losses. In addition, entities will need to disclose the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination. ASU No. 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019; early adoption is permitted for interim and annual reporting periods beginning after December 15, 2018. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (i.e., modified retrospective approach). The Company has begun its implementation efforts by establishing a Company-wide implementation team. This team has assigned roles and responsibilities, key tasks to complete, and a general timeline to be followed. The implementation team meets periodically to discuss the latest developments and ensure progress is being made. The Company’s preliminary evaluation indicates the provisions of ASU No. 2016-13 are expected to impact the Company’s Consolidated Financial Statements, in particular the level of the reserve for credit losses. However, the Company continues to evaluate the extent of the potential impact. In August 2016, the FASB issued ASU No. 2016-15, “Classification of Certain Cash Receipts and Cash Payments.” Current GAAP is unclear or does not include specific guidance on how to classify certain transactions in the statement of cash flows. This ASU is intended to reduce diversity in practice in how eight particular transactions are classified in the statement of cash flows. ASU No. 2016-15 is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted, provided that all of the amendments are adopted in the same period. Entities will be required to apply the guidance retrospectively. If it is impracticable to apply the guidance retrospectively for an issue, the amendments related to that issue would be applied prospectively. As this guidance only affects the classification within the statement of cash flows, ASU No. 2016-15 is not expected to have a material impact on the Company’s Consolidated Financial Statements. In January 2017, the FASB issued ASU No. 2017-04, “Simplifying the Test for Goodwill Impairment.” The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. ASU No. 2017-04 is effective for interim and annual reporting periods beginning after December 15, 2019, applied prospectively. Early adoption is permitted for any impairment tests performed after January 1, 2017. The Company expects to early adopt upon the next goodwill impairment test in 2017. ASU No. 2017-04 is not expected to have a material impact on the Company’s Consolidated Financial Statements. In March 2017, the FASB issued ASU No. 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” Under the new guidance, employers will present the service cost component of the net periodic benefit cost in the same income statement line item (e.g., Salaries and Benefits) as other employee compensation costs arising from services rendered during the period. In addition, only the service cost component will be eligible for capitalization in assets. Employers will present the other components separately (e.g., Other Noninterest Expense) from the line item that includes the service cost. ASU No. 2017-07 is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted, however, the Company has decided not to early adopt. Employers will apply the guidance on the presentation of the components of net periodic benefit cost in the income statement retrospectively. The guidance limiting the capitalization of net periodic benefit cost in assets to the service cost component will be applied prospectively. The Company expects to utilize the ASU’s practical expedient allowing entities to estimate amounts for comparative periods using the information previously disclosed in their pension and other postretirement benefit plan footnote. ASU No. 2017-07 is not expected to have a material impact on the Company’s Consolidated Financial Statements. In March 2017, the FASB issued ASU No. 2017-08, “Premium Amortization on Purchased Callable Debt Securities.” This ASU shortens the amortization period for the premium on certain purchased callable debt securities to the earliest call date. Today, entities generally amortize the premium over the contractual life of the security. The new guidance does not change the accounting for purchased callable debt securities held at a discount; the discount continues to be amortized to maturity. ASU No. 2017-08 is effective for interim and annual reporting periods beginning after December 15, 2018; early adoption is permitted. The guidance calls for a modified retrospective transition approach under which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The Company is currently evaluating the provisions of ASU No. 2017-08 to determine the potential impact the new standard will have on the Company’s Consolidated Financial Statements.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost, gross unrealized gains and losses, and fair value of the Company’s investment securities as of March 31, 2017 and December 31, 2016 were as follows: (dollars in thousands) Amortized Cost Gross Gross Fair Value March 31, 2017 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 428,615 $ 2,532 $ (1,323 ) $ 429,824 Debt Securities Issued by States and Political Subdivisions 666,257 15,988 (291 ) 681,954 Debt Securities Issued by Corporations 268,031 137 (3,205 ) 264,963 Mortgage-Backed Securities: Residential - Government Agencies 250,178 4,280 (1,167 ) 253,291 Residential - U.S. Government-Sponsored Enterprises 633,194 1,064 (5,187 ) 629,071 Commercial - Government Agencies 85,617 — (3,150 ) 82,467 Total Mortgage-Backed Securities 968,989 5,344 (9,504 ) 964,829 Total $ 2,331,892 $ 24,001 $ (14,323 ) $ 2,341,570 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 530,131 $ 1,181 $ (799 ) $ 530,513 Debt Securities Issued by States and Political Subdivisions 241,358 13,360 — 254,718 Debt Securities Issued by Corporations 131,652 286 (1,662 ) 130,276 Mortgage-Backed Securities: Residential - Government Agencies 1,950,475 18,543 (21,880 ) 1,947,138 Residential - U.S. Government-Sponsored Enterprises 770,674 1,142 (9,516 ) 762,300 Commercial - Government Agencies 223,798 1,694 (1,828 ) 223,664 Total Mortgage-Backed Securities 2,944,947 21,379 (33,224 ) 2,933,102 Total $ 3,848,088 $ 36,206 $ (35,685 ) $ 3,848,609 December 31, 2016 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 407,478 $ 2,531 $ (1,294 ) $ 408,715 Debt Securities Issued by States and Political Subdivisions 662,231 11,455 (1,887 ) 671,799 Debt Securities Issued by Corporations 273,044 5 (3,870 ) 269,179 Mortgage-Backed Securities: Residential - Government Agencies 240,412 4,577 (1,145 ) 243,844 Residential - U.S. Government-Sponsored Enterprises 511,234 971 (5,218 ) 506,987 Commercial - Government Agencies 89,544 — (4,027 ) 85,517 Total Mortgage-Backed Securities 841,190 5,548 (10,390 ) 836,348 Total $ 2,183,943 $ 19,539 $ (17,441 ) $ 2,186,041 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 530,149 $ 1,562 $ (771 ) $ 530,940 Debt Securities Issued by States and Political Subdivisions 242,295 9,991 — 252,286 Debt Securities Issued by Corporations 135,620 416 (1,528 ) 134,508 Mortgage-Backed Securities: Residential - Government Agencies 1,940,076 20,567 (23,861 ) 1,936,782 Residential - U.S. Government-Sponsored Enterprises 752,768 798 (10,919 ) 742,647 Commercial - Government Agencies 232,089 940 (2,665 ) 230,364 Total Mortgage-Backed Securities 2,924,933 22,305 (37,445 ) 2,909,793 Total $ 3,832,997 $ 34,274 $ (39,744 ) $ 3,827,527 The table below presents an analysis of the contractual maturities of the Company’s investment securities as of March 31, 2017 . Debt securities issued by government agencies (Small Business Administration securities) and mortgage-backed securities are disclosed separately in the table below as these investment securities may prepay prior to their scheduled contractual maturity dates. (dollars in thousands) Amortized Cost Fair Value Available-for-Sale: Due in One Year or Less $ 55,362 $ 55,427 Due After One Year Through Five Years 587,856 591,262 Due After Five Years Through Ten Years 249,876 256,495 Due After Ten Years 41,743 44,273 934,837 947,457 Debt Securities Issued by Government Agencies 428,066 429,284 Mortgage-Backed Securities: Residential - Government Agencies 250,178 253,291 Residential - U.S. Government-Sponsored Enterprises 633,194 629,071 Commercial - Government Agencies 85,617 82,467 Total Mortgage-Backed Securities 968,989 964,829 Total $ 2,331,892 $ 2,341,570 Held-to-Maturity: Due in One Year or Less $ 194,986 $ 194,935 Due After One Year Through Five Years 406,361 409,325 Due After Five Years Through Ten Years 252,762 259,221 Due After Ten Years 49,032 52,026 903,141 915,507 Mortgage-Backed Securities: Residential - Government Agencies 1,950,475 1,947,138 Residential - U.S. Government-Sponsored Enterprises 770,674 762,300 Commercial - Government Agencies 223,798 223,664 Total Mortgage-Backed Securities 2,944,947 2,933,102 Total $ 3,848,088 $ 3,848,609 Investment securities with carrying values of $2.5 billion and $2.4 billion as of March 31, 2017 and December 31, 2016 , respectively, were pledged to secure deposits of governmental entities and securities sold under agreements to repurchase. The table below presents the gains and losses from the sales of investment securities for the three months ended March 31, 2017 and 2016 . Three Months Ended (dollars in thousands) 2017 2016 Gross Gains on Sales of Investment Securities $ 12,467 $ 11,355 Gross Losses on Sales of Investment Securities (334 ) (175 ) Net Gains (Losses) on Sales of Investment Securities $ 12,133 $ 11,180 The losses during the three months ended March 31, 2017 and 2016 were due to fees paid to the counterparties of our prior Visa Class B share sale transactions. The Company’s investment securities in an unrealized loss position, segregated by continuous length of impairment, were as follows: Less Than 12 Months 12 Months or Longer Total (dollars in thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses March 31, 2017 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 117,681 $ (404 ) $ 130,056 $ (919 ) $ 247,737 $ (1,323 ) Debt Securities Issued by States and Political Subdivisions 78,130 (291 ) — — 78,130 (291 ) Debt Securities Issued by Corporations 67,334 (702 ) 162,491 (2,503 ) 229,825 (3,205 ) Mortgage-Backed Securities: Residential - Government Agencies 34,368 (72 ) 10,105 (1,095 ) 44,473 (1,167 ) Residential - U.S. Government-Sponsored Enterprises 495,584 (5,187 ) — — 495,584 (5,187 ) Commercial - Government Agencies 5,137 (103 ) 77,330 (3,047 ) 82,467 (3,150 ) Total Mortgage-Backed Securities 535,089 (5,362 ) 87,435 (4,142 ) 622,524 (9,504 ) Total $ 798,234 $ (6,759 ) $ 379,982 $ (7,564 ) $ 1,178,216 $ (14,323 ) Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 284,979 $ (799 ) $ — $ — $ 284,979 $ (799 ) Debt Securities Issued by Corporations 70,674 (1,091 ) 15,434 (571 ) 86,108 (1,662 ) Mortgage-Backed Securities: Residential - Government Agencies 828,303 (13,970 ) 218,914 (7,910 ) 1,047,217 (21,880 ) Residential - U.S. Government-Sponsored Enterprises 614,453 (9,516 ) — — 614,453 (9,516 ) Commercial - Government Agencies 84,783 (1,774 ) 15,358 (54 ) 100,141 (1,828 ) Total Mortgage-Backed Securities 1,527,539 (25,260 ) 234,272 (7,964 ) 1,761,811 (33,224 ) Total $ 1,883,192 $ (27,150 ) $ 249,706 $ (8,535 ) $ 2,132,898 $ (35,685 ) December 31, 2016 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 143,715 $ (562 ) $ 89,211 $ (732 ) $ 232,926 $ (1,294 ) Debt Securities Issued by States and Political Subdivisions 211,188 (1,873 ) 6,725 (14 ) 217,913 (1,887 ) Debt Securities Issued by Corporations 67,332 (714 ) 196,838 (3,156 ) 264,170 (3,870 ) Mortgage-Backed Securities: Residential - Government Agencies 38,355 (89 ) 11,185 (1,056 ) 49,540 (1,145 ) Residential - U.S. Government-Sponsored Enterprises 397,385 (5,218 ) — — 397,385 (5,218 ) Commercial - Government Agencies 5,097 (164 ) 80,420 (3,863 ) 85,517 (4,027 ) Total Mortgage-Backed Securities 440,837 (5,471 ) 91,605 (4,919 ) 532,442 (10,390 ) Total $ 863,072 $ (8,620 ) $ 384,379 $ (8,821 ) $ 1,247,451 $ (17,441 ) Held-to-Maturity: Debt Securities Issued by the U.S. Treasury $ 169,926 $ (771 ) $ — $ — $ 169,926 $ (771 ) Debt Securities Issued by Corporations 69,601 (971 ) 15,933 (557 ) 85,534 (1,528 ) Mortgage-Backed Securities: Residential - Government Agencies 835,227 (15,313 ) 231,377 (8,548 ) 1,066,604 (23,861 ) Residential - U.S. Government-Sponsored Enterprises 693,047 (10,919 ) — — 693,047 (10,919 ) Commercial - Government Agencies 87,586 (2,597 ) 18,653 (68 ) 106,239 (2,665 ) Total Mortgage-Backed Securities 1,615,860 (28,829 ) 250,030 (8,616 ) 1,865,890 (37,445 ) Total $ 1,855,387 $ (30,571 ) $ 265,963 $ (9,173 ) $ 2,121,350 $ (39,744 ) The Company does not believe that the investment securities that were in an unrealized loss position as of March 31, 2017 , which were comprised of 295 securities, represent an other-than-temporary impairment. Total gross unrealized losses were primarily attributable to changes in interest rates, relative to when the investment securities were purchased, and not due to the credit quality of the investment securities. As of March 31, 2017 and December 31, 2016 , the gross unrealized losses reported for mortgage-backed securities were mostly related to investment securities issued by the Government National Mortgage Association. The Company does not intend to sell the investment securities that were in an unrealized loss position and it is not more likely than not that the Company will be required to sell the investment securities before recovery of their amortized cost basis, which may be at maturity. Interest income from taxable and non-taxable investment securities for the three months ended March 31, 2017 and 2016 were as follows: Three Months Ended (dollars in thousands) 2017 2016 Taxable $ 25,767 $ 25,987 Non-Taxable 5,023 5,218 Total Interest Income from Investment Securities $ 30,790 $ 31,205 As of March 31, 2017 , included in the Company’s investment securities portfolio were debt securities issued by political subdivisions within the State of Hawaii of $534.2 million , representing 57% of the total fair value of the Company’s municipal debt securities. Of the entire Hawaii municipal bond portfolio, 94% were credit-rated Aa2 or better by Moody’s while the remaining Hawaii municipal bonds were credit-rated A2 or better by at least one nationally recognized statistical rating organization. Of the Company’s total Hawaii municipal bond holdings, 78% were general obligation issuances. As of March 31, 2017 , there were no other holdings of municipal debt securities that were issued by a single state or political subdivision which comprised more than 10% of the total fair value of the Company’s municipal debt securities. As of March 31, 2017 and December 31, 2016 , the carrying value of the Company’s Federal Home Loan Bank of Des Moines stock and Federal Reserve Bank stock was as follows: (dollars in thousands) March 31, December 31, Federal Home Loan Bank Stock $ 20,000 $ 20,000 Federal Reserve Bank Stock 20,167 20,063 Total $ 40,167 $ 40,063 These securities can only be redeemed or sold at their par value and only to the respective issuing government-supported institution or to another member institution. The Company records these non-marketable equity securities as a component of other assets and periodically evaluates these securities for impairment. Management considers these non-marketable equity securities to be long-term investments. Accordingly, when evaluating these securities for impairment, management considers the ultimate recoverability of the par value rather than recognizing temporary declines in value. Visa Class B Restricted Shares In 2008, the Company received Visa Class B restricted shares as part of Visa’s initial public offering. These shares are transferable only under limited circumstances until they can be converted into the publicly traded Class A common shares. This conversion will not occur until the settlement of certain litigation which is indemnified by Visa members, including the Company. Visa funded an escrow account from its initial public offering to settle these litigation claims. Should this escrow account not be sufficient to cover these litigation claims, Visa is entitled to fund additional amounts to the escrow account by reducing each member bank’s Class B conversion ratio to unrestricted Class A shares. As of March 31, 2017 , the conversion ratio was 1.6483 . During the first quarter of 2017 , the Company recorded a $12.5 million gain on the sale of 90,000 Visa Class B shares. Concurrent with every sale of Visa Class B shares, the Company has entered into an agreement with the buyer that requires payment to the buyer in the event Visa further reduces the conversion ratio. Based on the existing transfer restriction and the uncertainty of the outcome of the Visa litigation mentioned above, the remaining 90,914 Class B shares ( 149,854 Class A equivalents) that the Company owns as of March 31, 2017 are carried at a zero cost basis.

Loans and Leases and the Allowa

Loans and Leases and the Allowance for Loan and Lease Losses	3 Months Ended
	Mar. 31, 2017
Loans and Leases and Allowance for Loan and Lease Losses [Abstract]
Loans and Leases and the Allowance for Loan and Lease Losses	Loans and Leases and the Allowance for Loan and Lease Losses Loans and Leases The Company’s loan and lease portfolio was comprised of the following as of March 31, 2017 and December 31, 2016 : (dollars in thousands) March 31, December 31, Commercial Commercial and Industrial $ 1,250,006 $ 1,249,791 Commercial Mortgage 1,909,064 1,889,551 Construction 262,660 270,018 Lease Financing 208,765 208,332 Total Commercial 3,630,495 3,617,692 Consumer Residential Mortgage 3,224,206 3,163,073 Home Equity 1,411,489 1,334,163 Automobile 468,078 454,333 Other 1 379,541 380,524 Total Consumer 5,483,314 5,332,093 Total Loans and Leases $ 9,113,809 $ 8,949,785 1 Comprised of other revolving credit, installment, and lease financing. The majority of the Company’s lending activity is with customers located in the State of Hawaii. A substantial portion of the Company’s real estate loans are secured by real estate in Hawaii. Net gains related to sales of residential mortgage loans, recorded as a component of mortgage banking income were $1.3 million and $1.8 million for the three months ended March 31, 2017 and 2016 , respectively. Allowance for Loan and Lease Losses (the “Allowance”) The following presents by portfolio segment, the activity in the Allowance for the three months ended March 31, 2017 and 2016 . The following also presents by portfolio segment, the balance in the Allowance disaggregated on the basis of the Company’s impairment measurement method and the related recorded investment in loans and leases as of March 31, 2017 and 2016 . (dollars in thousands) Commercial Consumer Total Three Months Ended March 31, 2017 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 65,680 $ 38,593 $ 104,273 Loans and Leases Charged-Off (174 ) (5,530 ) (5,704 ) Recoveries on Loans and Leases Previously Charged-Off 336 1,759 2,095 Net Loans and Leases Recovered (Charged-Off) 162 (3,771 ) (3,609 ) Provision for Credit Losses 1,051 3,349 4,400 Balance at End of Period $ 66,893 $ 38,171 $ 105,064 As of March 31, 2017 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 38 $ 3,912 $ 3,950 Collectively Evaluated for Impairment 66,855 34,259 101,114 Total $ 66,893 $ 38,171 $ 105,064 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 20,902 $ 39,429 $ 60,331 Collectively Evaluated for Impairment 3,609,593 5,443,885 9,053,478 Total $ 3,630,495 $ 5,483,314 $ 9,113,809 Three Months Ended March 31, 2016 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 60,714 $ 42,166 $ 102,880 Loans and Leases Charged-Off (257 ) (4,630 ) (4,887 ) Recoveries on Loans and Leases Previously Charged-Off 6,905 1,779 8,684 Net Loans and Leases Recovered (Charged-Off) 6,648 (2,851 ) 3,797 Provision for Credit Losses (5,552 ) 3,552 (2,000 ) Balance at End of Period $ 61,810 $ 42,867 $ 104,677 As of March 31, 2016 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 157 $ 3,406 $ 3,563 Collectively Evaluated for Impairment 61,653 39,461 101,114 Total $ 61,810 $ 42,867 $ 104,677 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 22,986 $ 39,028 $ 62,014 Collectively Evaluated for Impairment 3,233,267 4,770,329 8,003,596 Total $ 3,256,253 $ 4,809,357 $ 8,065,610 Credit Quality Indicators The Company uses several credit quality indicators to manage credit risk in an ongoing manner. The Company uses an internal credit risk rating system that categorizes loans and leases into pass, special mention, or classified categories. Credit risk ratings are applied individually to those classes of loans and leases that have significant or unique credit characteristics that benefit from a case-by-case evaluation. These are typically loans and leases to businesses or individuals in the classes which comprise the commercial portfolio segment. Groups of loans and leases that are underwritten and structured using standardized criteria and characteristics, such as statistical models (e.g., credit scoring or payment performance), are typically risk-rated and monitored collectively. These are typically loans and leases to individuals in the classes which comprise the consumer portfolio segment. The following are the definitions of the Company’s credit quality indicators: Pass: Loans and leases in all classes within the commercial and consumer portfolio segments that are not adversely rated, are contractually current as to principal and interest, and are otherwise in compliance with the contractual terms of the loan or lease agreement. Management believes that there is a low likelihood of loss related to those loans and leases that are considered pass. Special Mention: Loans and leases in the classes within the commercial portfolio segment that have potential weaknesses that deserve management’s close attention. If not addressed, these potential weaknesses may result in deterioration of the repayment prospects for the loan or lease. The special mention credit quality indicator is not used for classes of loans and leases that are included in the consumer portfolio segment. Management believes that there is a moderate likelihood of some loss related to those loans and leases that are considered special mention. Classified: Loans and leases in the classes within the commercial portfolio segment that are inadequately protected by the sound worth and paying capacity of the borrower or of the collateral pledged, if any. Classified loans and leases are also those in the classes within the consumer portfolio segment that are past due 90 days or more as to principal or interest. Residential mortgage loans that are past due 90 days or more as to principal or interest may be considered pass if the Company is in the process of collection and the current loan-to-value ratio is 60% or less. Home equity loans that are past due 90 days or more as to principal or interest may be considered pass if the Company is in the process of collection, the first mortgage is with the Company, and the current combined loan-to-value ratio is 60% or less. Residential mortgage and home equity loans may be current as to principal and interest, but may be considered classified for a period of generally up to six months following a loan modification. Following a period of demonstrated performance in accordance with the modified contractual terms, the loan may be removed from classified status. Management believes that there is a distinct possibility that the Company will sustain some loss if the deficiencies related to classified loans and leases are not corrected in a timely manner. The Company’s credit quality indicators are periodically updated on a case-by-case basis. The following presents by class and by credit quality indicator, the recorded investment in the Company’s loans and leases as of March 31, 2017 and December 31, 2016 . March 31, 2017 (dollars in thousands) Commercial and Industrial Commercial Mortgage Construction Lease Financing Total Commercial Pass $ 1,204,150 $ 1,811,871 $ 256,962 $ 208,253 $ 3,481,236 Special Mention 18,915 73,225 4,209 4 96,353 Classified 26,941 23,968 1,489 508 52,906 Total $ 1,250,006 $ 1,909,064 $ 262,660 $ 208,765 $ 3,630,495 (dollars in thousands) Residential Mortgage Home Equity Automobile Other 1 Total Consumer Pass $ 3,212,370 $ 1,404,974 $ 467,405 $ 378,785 $ 5,463,534 Special Mention — 2,464 — — 2,464 Classified 11,836 4,051 673 756 17,316 Total $ 3,224,206 $ 1,411,489 $ 468,078 $ 379,541 $ 5,483,314 Total Recorded Investment in Loans and Leases $ 9,113,809 December 31, 2016 (dollars in thousands) Commercial and Industrial Commercial Mortgage Construction Lease Financing Total Commercial Pass $ 1,203,025 $ 1,792,119 $ 264,287 $ 207,386 $ 3,466,817 Special Mention 20,253 66,734 4,218 5 91,210 Classified 26,513 30,698 1,513 941 59,665 Total $ 1,249,791 $ 1,889,551 $ 270,018 $ 208,332 $ 3,617,692 (dollars in thousands) Residential Mortgage Home Equity Automobile Other 1 Total Consumer Pass $ 3,149,294 $ 1,327,676 $ 453,439 $ 379,793 $ 5,310,202 Special Mention — 2,964 — — 2,964 Classified 13,779 3,523 894 731 18,927 Total $ 3,163,073 $ 1,334,163 $ 454,333 $ 380,524 $ 5,332,093 Total Recorded Investment in Loans and Leases $ 8,949,785 1 Comprised of other revolving credit, installment, and lease financing. Aging Analysis The following presents by class, an aging analysis of the Company’s loan and lease portfolio as of March 31, 2017 and December 31, 2016 . (dollars in thousands) 30 - 59 Days Past Due 60 - 89 Days Past Due Past Due 90 Days or More Non-Accrual Total Past Due and Non-Accrual Current Total Loans and Leases Non-Accrual Loans and Leases that are Current 2 As of March 31, 2017 Commercial Commercial and Industrial $ 6,275 $ 161 $ — $ 228 $ 6,664 $ 1,243,342 $ 1,250,006 $ 162 Commercial Mortgage 639 675 — 973 2,287 1,906,777 1,909,064 404 Construction — — — — — 262,660 262,660 — Lease Financing — — — — — 208,765 208,765 — Total Commercial 6,914 836 — 1,201 8,951 3,621,544 3,630,495 566 Consumer Residential Mortgage 3,259 1,169 2,313 11,756 18,497 3,205,709 3,224,206 1,517 Home Equity 2,342 1,012 1,133 3,517 8,004 1,403,485 1,411,489 1,300 Automobile 9,128 1,266 673 — 11,067 457,011 468,078 — Other 1 2,663 1,650 1,738 — 6,051 373,490 379,541 — Total Consumer 17,392 5,097 5,857 15,273 43,619 5,439,695 5,483,314 2,817 Total $ 24,306 $ 5,933 $ 5,857 $ 16,474 $ 52,570 $ 9,061,239 $ 9,113,809 $ 3,383 As of December 31, 2016 Commercial Commercial and Industrial $ 10,698 $ 1,016 $ — $ 151 $ 11,865 $ 1,237,926 $ 1,249,791 $ — Commercial Mortgage 128 17 — 997 1,142 1,888,409 1,889,551 416 Construction — — — — — 270,018 270,018 — Lease Financing — — — — — 208,332 208,332 — Total Commercial 10,826 1,033 — 1,148 13,007 3,604,685 3,617,692 416 Consumer Residential Mortgage 6,491 106 3,127 13,780 23,504 3,139,569 3,163,073 1,628 Home Equity 3,063 2,244 1,457 3,147 9,911 1,324,252 1,334,163 1,015 Automobile 11,692 2,162 894 — 14,748 439,585 454,333 — Other 1 3,200 1,532 1,592 — 6,324 374,200 380,524 — Total Consumer 24,446 6,044 7,070 16,927 54,487 5,277,606 5,332,093 2,643 Total $ 35,272 $ 7,077 $ 7,070 $ 18,075 $ 67,494 $ 8,882,291 $ 8,949,785 $ 3,059 1 Comprised of other revolving credit, installment, and lease financing. 2 Represents non-accrual loans that are not past due 30 days or more; however, full payment of principal and interest is still not expected. Impaired Loans The following presents by class, information related to impaired loans as of March 31, 2017 and December 31, 2016 . (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance for Loan Losses March 31, 2017 Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 9,217 $ 16,179 $ — Commercial Mortgage 9,165 12,665 — Construction 1,489 1,489 — Total Commercial 19,871 30,333 — Total Impaired Loans with No Related Allowance Recorded $ 19,871 $ 30,333 $ — Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 689 $ 689 $ 14 Commercial Mortgage 342 342 24 Total Commercial 1,031 1,031 38 Consumer Residential Mortgage 24,349 29,338 3,325 Home Equity 1,507 1,507 263 Automobile 10,916 10,916 248 Other 1 2,657 2,657 76 Total Consumer 39,429 44,418 3,912 Total Impaired Loans with an Allowance Recorded $ 40,460 $ 45,449 $ 3,950 Impaired Loans: Commercial $ 20,902 $ 31,364 $ 38 Consumer 39,429 44,418 3,912 Total Impaired Loans $ 60,331 $ 75,782 $ 3,950 December 31, 2016 Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 9,556 $ 16,518 $ — Commercial Mortgage 9,373 12,873 — Construction 1,513 1,513 — Total Commercial 20,442 30,904 — Total Impaired Loans with No Related Allowance Recorded $ 20,442 $ 30,904 $ — Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 765 $ 765 $ 24 Commercial Mortgage 365 365 21 Total Commercial 1,130 1,130 45 Consumer Residential Mortgage 25,625 30,615 3,224 Home Equity 1,516 1,516 15 Automobile 9,660 9,660 206 Other 1 2,325 2,325 65 Total Consumer 39,126 44,116 3,510 Total Impaired Loans with an Allowance Recorded $ 40,256 $ 45,246 $ 3,555 Impaired Loans: Commercial $ 21,572 $ 32,034 $ 45 Consumer 39,126 44,116 3,510 Total Impaired Loans $ 60,698 $ 76,150 $ 3,555 1 Comprised of other revolving credit and installment financing. The following presents by class, information related to the average recorded investment and interest income recognized on impaired loans for the three months ended March 31, 2017 and 2016 . Three Months Ended Three Months Ended (dollars in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 9,387 $ 81 $ 12,360 $ 106 Commercial Mortgage 9,269 85 10,231 69 Construction 1,501 24 1,593 26 Total Commercial 20,157 190 24,184 201 Total Impaired Loans with No Related Allowance Recorded $ 20,157 $ 190 $ 24,184 $ 201 Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 727 $ 11 $ 1,285 $ 20 Commercial Mortgage 354 4 — — Total Commercial 1,081 15 1,285 20 Consumer Residential Mortgage 24,987 212 28,606 251 Home Equity 1,512 17 1,303 17 Automobile 10,288 169 7,198 122 Other 1 2,491 53 1,781 39 Total Consumer 39,278 451 38,888 429 Total Impaired Loans with an Allowance Recorded $ 40,359 $ 466 $ 40,173 $ 449 Impaired Loans: Commercial $ 21,238 $ 205 $ 25,469 $ 221 Consumer 39,278 451 38,888 429 Total Impaired Loans $ 60,516 $ 656 $ 64,357 $ 650 1 Comprised of other revolving credit and installment financing. For the three months ended March 31, 2017 and 2016 , the amounts of interest income recognized by the Company within the periods that the loans were impaired were primarily related to loans modified in a troubled debt restructuring that remained on accrual status. For the three months ended March 31, 2017 and 2016 , the amount of interest income recognized using a cash-basis method of accounting during the periods that the loans were impaired was not material. Modifications A modification of a loan constitutes a troubled debt restructuring (“TDR”) when the Company, for economic or legal reasons related to a borrower’s financial difficulties, grants a concession to the borrower that it would not otherwise consider. Loans modified in a TDR were $59.5 million and $60.0 million as of March 31, 2017 and December 31, 2016 , respectively. As of March 31, 2017 , there were $0.3 million commitments to lend additional funds on loans modified in a TDR. As of December 31, 2016 , there were $0.4 million of commitments to lend additional funds on loans modified in a TDR. The Company offers various types of concessions when modifying a loan or lease. Commercial and industrial loans modified in a TDR often involve temporary interest-only payments, term extensions, and converting revolving credit lines to term loans. Additional collateral, a co-borrower, or a guarantor is often requested. Commercial mortgage and construction loans modified in a TDR often involve reducing the interest rate for the remaining term of the loan, extending the maturity date at an interest rate lower than the current market rate for new debt with similar risk, or substituting or adding a co-borrower or guarantor. Construction loans modified in a TDR may also involve extending the interest-only payment period. Residential mortgage loans modified in a TDR generally include a lower interest rate and the loan being fully amortized for up to 40 years from the modification effective date. In some cases, the Company may forbear a portion of the unpaid principal balance with a balloon payment due upon maturity or pay-off of the loan. Land loans are also included in the class of residential mortgage loans. Land loans are typically structured as interest-only monthly payments with a balloon payment due at maturity. Land loan modifications usually involve extending the interest-only monthly payments up to an additional five years with a balloon payment due at maturity, or re-amortizing the remaining balance over a period up to 360 months . Interest rates are not changed for land loan modifications. Home equity modifications are made infrequently and uniquely designed to meet the specific needs of each borrower. Automobile loans modified in a TDR are primarily comprised of loans where the Company has lowered monthly payments by extending the term. Loans modified in a TDR are typically already on non-accrual status and partial charge-offs have in some cases already been taken against the outstanding loan balance. As a result, loans modified in a TDR may have the financial effect of increasing the specific Allowance associated with the loan. An Allowance for impaired consumer and commercial loans that have been modified in a TDR is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s observable market price, or the estimated fair value of the collateral, less any selling costs, if the loan is collateral dependent. Management exercises significant judgment in developing these estimates. The following presents by class, information related to loans modified in a TDR during the three months ended March 31, 2017 and 2016 . Loans Modified as a TDR for the Loans Modified as a TDR for the Recorded Increase in Recorded Increase in Troubled Debt Restructurings Number of Investment Allowance Number of Investment Allowance (dollars in thousands) Contracts (as of period end) 1 (as of period end) Contracts (as of period end) 1 (as of period end) Commercial Commercial and Industrial 5 $ 3,858 $ 1 17 $ 2,988 $ — Commercial Mortgage 1 404 — — — — Total Commercial 6 4,262 1 17 2,988 — Consumer Residential Mortgage 1 98 — 3 1,166 197 Home Equity — — — 1 478 6 Automobile 113 2,303 52 53 1,123 24 Other 2 90 643 18 62 450 13 Total Consumer 204 3,044 70 119 3,217 240 Total 210 $ 7,306 $ 71 136 $ 6,205 $ 240 1 The period end balances reflect all paydowns and charge-offs since the modification date. TDRs fully paid-off, charged-off, or foreclosed upon by period end are not included. 2 Comprised of other revolving credit and installment financing. The following presents by class, all loans modified in a TDR that defaulted during the three months ended March 31, 2017 and 2016 , and within twelve months of their modification date. A TDR is considered to be in default once it becomes 60 days or more past due following a modification. Three Months Ended Three Months Ended TDRs that Defaulted During the Period, Recorded Recorded Within Twelve Months of their Modification Date Number of Investment Number of Investment (dollars in thousands) Contracts (as of period end) 1 Contracts (as of period end) 1 Commercial Commercial and Industrial 2 $ 148 — $ — Commercial Mortgage 1 404 — — Total Commercial 3 552 — — Consumer Residential Mortgage — — 2 1,031 Home Equity — — 1 165 Automobile 11 224 5 116 Other 2 27 199 18 111 Total Consumer 38 423 26 1,423 Total 41 $ 975 26 $ 1,423 1 The period end balances reflect all paydowns and charge-offs since the modification date. TDRs fully paid-off, charged-off, or foreclosed upon by period end are not included. 2 Comprised of other revolving credit and installment financing. Commercial and consumer loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default. If loans modified in a TDR subsequently default, the Company evaluates the loan for possible further impairment. The specific Allowance associated with the loan may be increased, adjustments may be made in the allocation of the Allowance, or partial charge-offs may be taken to further write-down the carrying value of the loan. Foreclosure Proceedings Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure totaled $7.7 million as of March 31, 2017 .

Mortgage Servicing Rights

Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2017
Transfers and Servicing of Financial Assets [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights The Company’s portfolio of residential mortgage loans serviced for third parties was $2.8 billion as of March 31, 2017 and $2.7 billion as of December 31, 2016 . Substantially all of these loans were originated by the Company and sold to third parties on a non-recourse basis with servicing rights retained. These retained servicing rights are recorded as a servicing asset and are initially recorded at fair value (see Note 13 Fair Value of Assets and Liabilities for more information). Changes to the balance of mortgage servicing rights are recorded in mortgage banking income in the Company’s consolidated statements of income. The Company’s mortgage servicing activities include collecting principal, interest, and escrow payments from borrowers; making tax and insurance payments on behalf of borrowers; monitoring delinquencies and executing foreclosure proceedings; and accounting for and remitting principal and interest payments to investors. Servicing income, including late and ancillary fees, was $1.7 million for the three months ended March 31, 2017 and 2016 . Servicing income is recorded in mortgage banking income in the Company’s consolidated statements of income. The Company’s residential mortgage investor loan servicing portfolio is primarily comprised of fixed rate loans concentrated in Hawaii. For the three months ended March 31, 2017 and 2016 , the change in the carrying value of the Company’s mortgage servicing rights accounted for under the fair value measurement method was as follows: Three Months Ended (dollars in thousands) 2017 2016 Balance at Beginning of Period $ 1,655 $ 1,970 Change in Fair Value: Due to Change in Valuation Assumptions 1 — — Due to Payoffs (69 ) (60 ) Total Changes in Fair Value of Mortgage Servicing Rights (69 ) (60 ) Balance at End of Period $ 1,586 $ 1,910 1 Primarily represents changes in discount rates and loan repayment rate assumptions, mostly due to changes in interest rates. For the three months ended March 31, 2017 and 2016 , the change in the carrying value of the Company’s mortgage servicing rights accounted for under the amortization method, net of valuation allowance, was as follows: Three Months Ended (dollars in thousands) 2017 2016 Balance at Beginning of Period $ 22,008 $ 21,032 Servicing Rights that Resulted From Asset Transfers 1,315 441 Amortization (618 ) (635 ) Valuation Allowance Provision — (85 ) Balance at End of Period $ 22,705 $ 20,753 Valuation Allowance: Balance at Beginning of Period $ — $ (21 ) Valuation Allowance Provision — (85 ) Balance at End of Period $ — $ (106 ) Fair Value of Mortgage Servicing Rights Accounted for Under the Amortization Method Beginning of Period $ 25,148 $ 24,804 End of Period $ 25,946 $ 20,841 The key data and assumptions used in estimating the fair value of the Company’s mortgage servicing rights as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, 2016 Weighted-Average Constant Prepayment Rate 1 8.07 % 8.13 % Weighted-Average Life (in years) 7.46 7.43 Weighted-Average Note Rate 4.08 % 4.10 % Weighted-Average Discount Rate 2 9.00 % 9.33 % 1 Represents annualized loan repayment rate assumption. 2 Derived from multiple interest rate scenarios that incorporate a spread to a market yield curve and market volatilities. A sensitivity analysis of the Company’s fair value of mortgage servicing rights to changes in certain key assumptions as of March 31, 2017 and December 31, 2016 is presented in the following table. (dollars in thousands) March 31, December 31, Constant Prepayment Rate Decrease in fair value from 25 basis points (“bps”) adverse change $ (328 ) $ (321 ) Decrease in fair value from 50 bps adverse change (650 ) (636 ) Discount Rate Decrease in fair value from 25 bps adverse change (296 ) (288 ) Decrease in fair value from 50 bps adverse change (586 ) (570 ) This analysis generally cannot be extrapolated because the relationship of a change in one key assumption to the change in the fair value of the Company’s mortgage servicing rights usually is not linear. Also, the effect of changing one key assumption without changing other assumptions is not realistic.

Low Income Housing Tax Credit P

Low Income Housing Tax Credit Partnerships	3 Months Ended
	Mar. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Low Income Housing Tax Credit Partnerships	Affordable Housing Projects Tax Credit Partnerships The Company makes equity investments in various limited partnerships that sponsor affordable housing projects utilizing the Low Income Housing Tax Credit (LIHTC) pursuant to Section 42 of the Internal Revenue Code. The purpose of these investments is to achieve a satisfactory return on capital, to facilitate the sale of affordable housing product offerings, and to assist in achieving goals associated with the Community Reinvestment Act. The primary activities of the limited partnerships include the identification, development, and operation of multi-family housing that is leased to qualifying residential tenants. Generally, these types of investments are funded through a combination of debt and equity. The Company is a limited partner in each LIHTC limited partnership. Each limited partnership is managed by an unrelated third party general partner who exercises full control over the affairs of the limited partnership. The general partner has all the rights, powers and authority granted or permitted to be granted to a general partner of a limited partnership. Duties entrusted to the general partner of each limited partnership include, but are not limited to: investment in operating companies, company expenditures, investment of excess funds, borrowing funds, employment of agents, disposition of fund property, prepayment and refinancing of liabilities, votes and consents, contract authority, disbursement of funds, accounting methods, tax elections, bank accounts, insurance, litigation, cash reserve, and use of working capital reserve funds. Except for limited rights granted to the limited partner(s) relating to the approval of certain transactions, the limited partner(s) may not participate in the operation, management, or control of the limited partnership’s business, transact any business in the limited partnership’s name or have any power to sign documents for or otherwise bind the limited partnership. In addition, the general partner may only be removed by the limited partner(s) in the event the general partner fails to comply with the terms of the agreement or is negligent in performing its duties. The general partner of each limited partnership has both the power to direct the activities which most significantly affect the performance of each partnership and the obligation to absorb losses or the right to receive benefits that could be significant to the entities. Therefore, the Company has determined that it is not the primary beneficiary of any LIHTC partnership. The Company uses the effective yield method to account for its pre-2015 investments in these entities. Beginning January 1, 2015, any new investments that meet the requirements of the proportional amortization method are recognized using the proportional amortization method. The Company’s net affordable housing tax credit investments and related unfunded commitments were $69.4 million and $66.6 million as of March 31, 2017 and December 31, 2016 , respectively, and are included in other assets in the consolidated statements of condition. Unfunded Commitments As of March 31, 2017 , the expected payments for unfunded affordable housing commitments were as follows: (dollars in thousands) Amount 2017 $ 6,260 2018 8,526 2019 5,947 2020 27 2021 9 Thereafter 382 Total Unfunded Commitments $ 21,151 The following table presents tax credits and other tax benefits recognized and amortization expense related to affordable housing for the three months ended March 31, 2017 and 2016 . Three Months Ended (dollars in thousands) 2017 2016 Effective Yield Method Tax credits and other tax benefits recognized $ 3,430 $ 3,516 Amortization Expense in Provision for Income Taxes 2,161 2,174 Proportional Amortization Method Tax credits and other tax benefits recognized $ 320 $ 259 Amortization Expense in Provision for Income Taxes 253 200 There were no impairment losses related to LIHTC investments during the three months ended March 31, 2017 and 2016 .

Balance Sheet Offsetting

Balance Sheet Offsetting	3 Months Ended
	Mar. 31, 2017
Offsetting [Abstract]
Balance Sheet Offsetting	Balance Sheet Offsetting Interest Rate Swap Agreements (“Swap Agreements”) The Company enters into swap agreements to facilitate the risk management strategies of a small number of commercial banking customers. The Company mitigates the risk of entering into these agreements by entering into equal and offsetting swap agreements with highly-rated third party financial institutions. The swap agreements are free-standing derivatives and are recorded at fair value in the Company’s consolidated statements of condition (asset positions are included in other assets and liability positions are included in other liabilities). The Company is party to master netting arrangements with its financial institution counterparties; however, the Company does not offset assets and liabilities under these arrangements for financial statement presentation purposes. The master netting arrangements provide for a single net settlement of all swap agreements, as well as collateral, in the event of default on, or termination of, any one contract. Collateral, usually in the form of cash or marketable securities, is posted by the party (i.e., the Company or the financial institution counterparty) with net liability positions in accordance with contract thresholds. The Company had net liability positions with its financial institution counterparties totaling $4.9 million and $5.5 million as of March 31, 2017 and December 31, 2016 , respectively. See Note 11 Derivative Financial Instruments for more information. Securities Sold Under Agreements to Repurchase (“Repurchase Agreements”) The Company enters into agreements under which it sells securities subject to an obligation to repurchase the same or similar securities. Under these arrangements, the Company may transfer legal control over the assets but still retain effective control through an agreement that both entitles and obligates the Company to repurchase the assets. As a result, these repurchase agreements are accounted for as collateralized financing arrangements (i.e., secured borrowings) and not as sales and subsequent repurchases of securities. The obligation to repurchase the securities is reflected as a liability in the Company’s consolidated statements of condition, while the securities underlying the repurchase agreements remain in the respective investment securities asset accounts. As a result, there is no offsetting or netting of the investment securities assets with the repurchase agreement liabilities. In addition, as the Company does not enter into reverse repurchase agreements, there is no such offsetting to be done with the repurchase agreements. The right of setoff for a repurchase agreement resembles a secured borrowing, whereby the collateral pledged by the Company would be used to settle the fair value of the repurchase agreement should the Company be in default (e.g., fail to make an interest payment to the counterparty). For private institution repurchase agreements, if the private institution counterparty were to default (e.g., declare bankruptcy), the Company could cancel the repurchase agreement (i.e., cease payment of principal and interest) and attempt collection on the amount of collateral value in excess of the repurchase agreement fair value. The collateral is held by a third party financial institution in the counterparty’s custodial account. The counterparty has the right to sell or repledge the investment securities. For government entity repurchase agreements, the collateral is held by the Company in a segregated custodial account under a tri-party agreement. The Company is required by the counterparty to maintain adequate collateral levels. In the event the collateral fair value falls below stipulated levels, the Company will pledge additional securities. The Company closely monitors collateral levels to ensure adequate levels are maintained, while mitigating the potential risk of over-collateralization in the event of counterparty default. The following table presents the remaining contractual maturities of the Company’s repurchase agreements as of March 31, 2017 and December 31, 2016 , disaggregated by the class of collateral pledged. Remaining Contractual Maturity of Repurchase Agreements (dollars in thousands) Up to 91-365 days 1-3 Years After Total March 31, 2017 Class of Collateral Pledged: Debt Securities Issued by the U.S. Treasury and Government Agencies $ — $ — $ 200,000 $ 110,449 $ 310,449 Debt Securities Issued by States and Political Subdivisions 900 2,392 2,000 — 5,292 Mortgage-Backed Securities: Residential - Government Agencies — — — 96,060 96,060 Residential - U.S. Government-Sponsored Enterprises — — — 93,491 93,491 Total $ 900 $ 2,392 $ 202,000 $ 300,000 $ 505,292 December 31, 2016 Class of Collateral Pledged: Debt Securities Issued by the U.S. Treasury and Government Agencies $ — $ — $ 200,000 $ 104,681 $ 304,681 Debt Securities Issued by States and Political Subdivisions 22,050 590 — — 22,640 Mortgage-Backed Securities: Residential - Government Agencies 738 — — 97,281 98,019 Residential - U.S. Government-Sponsored Enterprises — — — 98,038 98,038 Total $ 22,788 $ 590 $ 200,000 $ 300,000 $ 523,378 The following table presents the assets and liabilities subject to an enforceable master netting arrangement, or repurchase agreements, as of March 31, 2017 and December 31, 2016 . The swap agreements we have with our commercial banking customers are not subject to an enforceable master netting arrangement, and therefore, are excluded from this table. (i) (ii) (iii) = (i)-(ii) (iv) (v) = (iii)-(iv) Gross Amounts Recognized in the Statements of Condition Gross Amounts Offset in the Statements of Condition Net Amounts Presented in the Statements of Condition Gross Amounts Not Offset in the Statements of Condition (dollars in thousands) Netting Adjustments per Master Netting Arrangements Fair Value of Collateral Pledged 1 Net Amount March 31, 2017 Assets: Interest Rate Swap Agreements: Institutional Counterparties $ 5,276 $ — $ 5,276 $ 5,276 $ — $ — Liabilities: Interest Rate Swap Agreements: Institutional Counterparties 5,752 — 5,752 5,276 476 — Repurchase Agreements: Private Institutions 500,000 — 500,000 — 500,000 — Government Entities 5,292 — 5,292 — 5,292 — $ 505,292 $ — $ 505,292 $ — $ 505,292 $ — December 31, 2016 Assets: Interest Rate Swap Agreements: Institutional Counterparties $ 5,094 $ — $ 5,094 $ 5,094 $ — $ — Liabilities: Interest Rate Swap Agreements: Institutional Counterparties 6,489 — 6,489 5,094 500 895 Repurchase Agreements: Private Institutions 500,000 — 500,000 — 500,000 — Government Entities 23,378 — 23,378 — 23,378 — $ 523,378 $ — $ 523,378 $ — $ 523,378 $ — 1 The application of collateral cannot reduce the net amount below zero. Therefore, excess collateral is not reflected in this column. For interest rate swap agreements with institutional counterparties, the fair value of investment securities pledged was $1.0 million and $0.5 million as of March 31, 2017 and December 31, 2016 , respectively. For repurchase agreements with private institutions, the fair value of investment securities pledged was $590.5 million and $599.3 million as of March 31, 2017 and December 31, 2016 , respectively. For repurchase agreements with government entities, the fair value of investment securities pledged was $7.1 million and $28.9 million as of March 31, 2017 and December 31, 2016 , respectively.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2017
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The following table presents the components of other comprehensive income (loss) for the three months ended March 31, 2017 and 2016 : (dollars in thousands) Before Tax Tax Effect Net of Tax Three Months Ended March 31, 2017 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ 7,580 $ 2,991 $ 4,589 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 504 199 305 Net Unrealized Gains (Losses) on Investment Securities 8,084 3,190 4,894 Defined Benefit Plans: Amortization of Net Actuarial Losses (Gains) 323 128 195 Amortization of Prior Service Credit (81 ) (32 ) (49 ) Defined Benefit Plans, Net 242 96 146 Other Comprehensive Income (Loss) $ 8,326 $ 3,286 $ 5,040 Three Months Ended March 31, 2016 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ 13,944 $ 5,505 $ 8,439 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 422 167 255 Net Unrealized Gains (Losses) on Investment Securities 14,366 5,672 8,694 Defined Benefit Plans: Amortization of Net Actuarial Losses (Gains) 314 124 190 Amortization of Prior Service Credit (81 ) (32 ) (49 ) Defined Benefit Plans, Net 233 92 141 Other Comprehensive Income (Loss) $ 14,599 $ 5,764 $ 8,835 1 The amount relates to the amortization/accretion of unrealized net gains and losses related to the Company’s reclassification of available-for-sale investment securities to the held-to-maturity category. The unrealized net gains/losses will be amortized/accreted over the remaining life of the investment securities as an adjustment of yield. The following table presents the changes in each component of accumulated other comprehensive income (loss), net of tax, for the three months ended March 31, 2017 and 2016 : (dollars in thousands) Investment Securities-Available-for-Sale Investment Securities-Held-to-Maturity Defined Benefit Plans Accumulated Other Comprehensive Income (Loss) Three Months Ended March 31, 2017 Balance at Beginning of Period $ 1,270 $ (6,284 ) $ (28,892 ) $ (33,906 ) Other Comprehensive Income (Loss) Before Reclassifications 4,589 — — 4,589 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) — 305 146 451 Total Other Comprehensive Income (Loss) 4,589 305 146 5,040 Balance at End of Period $ 5,859 $ (5,979 ) $ (28,746 ) $ (28,866 ) Three Months Ended March 31, 2016 Balance at Beginning of Period $ 12,559 $ (7,255 ) $ (28,861 ) $ (23,557 ) Other Comprehensive Income (Loss) Before Reclassifications 8,439 — — 8,439 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) — 255 141 396 Total Other Comprehensive Income (Loss) 8,439 255 141 8,835 Balance at End of Period $ 20,998 $ (7,000 ) $ (28,720 ) $ (14,722 ) The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss) for the three months ended March 31, 2017 and 2016 : Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Accumulated Other Comprehensive Income (Loss) 1 Affected Line Item in the Statement Where Net Income Is Presented Three Months Ended March 31, (dollars in thousands) 2017 2016 Amortization of Unrealized Holding Gains (Losses) on Investment Securities Held-to-Maturity $ (504 ) $ (422 ) Interest Income 199 167 Provision for Income Tax (305 ) (255 ) Net of Tax Amortization of Defined Benefit Plan Items Prior Service Credit 2 81 81 Net Actuarial Losses 2 (323 ) (314 ) (242 ) (233 ) Total Before Tax 96 92 Provision for Income Tax (146 ) (141 ) Net of Tax Total Reclassifications for the Period $ (451 ) $ (396 ) Net of Tax 1 Amounts in parentheses indicate reductions to net income. 2 These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost and are included in Salaries and Benefits on the consolidated statements of income (see Note 10 Pension Plans and Postretirement Benefit Plan for additional details).

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share There were no adjustments to net income, the numerator, for purposes of computing earnings per share. The following is a reconciliation of the weighted average number of common shares outstanding for computing diluted earnings per share and antidilutive stock options and restricted stock outstanding for the three months ended March 31, 2017 and 2016 : Three Months Ended 2017 2016 Denominator for Basic Earnings Per Share 42,406,006 42,920,794 Dilutive Effect of Equity Based Awards 343,860 205,732 Denominator for Diluted Earnings Per Share 42,749,866 43,126,526 Antidilutive Stock Options and Restricted Stock Outstanding — 28,224

Business Segments

Business Segments	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Business Segments	Business Segments The Company’s business segments are defined as Retail Banking, Commercial Banking, Investment Services, and Treasury and Other. The Company’s internal management accounting process measures the performance of these business segments. This process, which is not necessarily comparable with the process used by any other financial institution, uses various techniques to assign balance sheet and income statement amounts to the business segments, including allocations of income, expense, the provision for credit losses, and capital. This process is dynamic and requires certain allocations based on judgment and other subjective factors. Unlike financial accounting, there is no comprehensive authoritative guidance for management accounting that is equivalent to GAAP. Previously reported results have been reclassified to conform to the current reporting structure. The net interest income of the business segments reflects the results of a funds transfer pricing process that matches assets and liabilities with similar interest rate sensitivity and maturity characteristics and reflects the allocation of net interest income related to the Company’s overall asset and liability management activities on a proportionate basis. The basis for the allocation of net interest income is a function of the Company’s assumptions that are subject to change based on changes in current interest rates and market conditions. Funds transfer pricing also serves to transfer interest rate risk to Treasury. However, the other business segments have some latitude to retain certain interest rate exposures related to customer pricing decisions within guidelines. The provision for credit losses reflects the actual net charge-offs of the business segments. The amount of the consolidated provision for loan and lease losses is based on the methodology that we use to estimate our consolidated Allowance. The residual provision for credit losses to arrive at the consolidated provision for credit losses is included in Treasury and Other. Noninterest income and expense includes allocations from support units to business units. These allocations are based on actual usage where practicably calculated or by management’s estimate of such usage. The provision for income taxes is allocated to business segments using a 37% effective income tax rate. However, the provision for income taxes for our Leasing business unit (included in the Commercial Banking segment) and Auto Leasing portfolio and Pacific Century Life Insurance business unit (both included in the Retail Banking segment) are assigned their actual effective income tax rates due to the unique relationship that income taxes have with their products. The residual income tax expense or benefit to arrive at the consolidated effective income tax rate is included in Treasury and Other. Retail Banking Retail Banking offers a broad range of financial products and services to consumers and small businesses. Loan and lease products include residential mortgage loans, home equity lines of credit, automobile loans and leases, personal lines of credit, installment loans, small business loans and leases, and credit cards. Deposit products include checking, savings, and time deposit accounts. Retail Banking also offers some types of consumer insurance products. Products and services from Retail Banking are delivered to customers through 69 branch locations and 441 ATMs throughout Hawaii and the Pacific Islands, e-Bankoh (on-line banking service), a 24-hour customer service center, and a mobile banking service. Commercial Banking Commercial Banking offers products including corporate banking, commercial real estate loans, commercial lease financing, auto dealer financing, and deposit products. Commercial lending and deposit products as well as public deposits are offered to middle-market and large companies in Hawaii and the Pacific Islands. In addition, Commercial Banking offers deposit products to government entities in Hawaii. Commercial real estate mortgages focus on customers that include investors, developers, and builders predominantly domiciled in Hawaii. Commercial Banking also includes international banking and provides merchant services to its small business customers. Investment Services Investment Services includes private banking and international client banking, trust services, investment management, and institutional investment advisory services. A significant portion of this segment’s income is derived from fees, which are generally based on the market values of assets under management. The private banking and personal trust group assists individuals and families in building and preserving their wealth by providing investment, credit, and trust services to high-net-worth individuals. The investment management group manages portfolios utilizing a variety of investment products. Institutional client services offer investment advice to corporations, government entities, and foundations. This segment also provides a full service brokerage offering equities, mutual funds, life insurance, and annuity products. Treasury and Other Treasury consists of corporate asset and liability management activities, including interest rate risk management and a foreign currency exchange business. This segment’s assets and liabilities (and related interest income and expense) consist of interest-bearing deposits, investment securities, federal funds sold and purchased, and short and long-term borrowings. The primary sources of noninterest income are from bank-owned life insurance, net gains from the sale of investment securities, and foreign exchange income related to customer-driven currency requests from merchants and island visitors. The net residual effect of the transfer pricing of assets and liabilities is included in Treasury, along with the elimination of intercompany transactions. Other organizational units (Technology, Operations, Marketing, Human Resources, Finance, Credit and Risk Management, and Corporate and Regulatory Administration) provide a wide-range of support to the Company’s other income earning segments. Expenses incurred by these support units are charged to the business segments through an internal cost allocation process. Selected business segment financial information as of and for the three months ended March 31, 2017 and 2016 were as follows: (dollars in thousands) Retail Banking Commercial Banking Investment Services Treasury and Other Consolidated Total Three Months Ended March 31, 2017 Net Interest Income $ 65,158 $ 41,931 $ 6,650 $ (3,867 ) $ 109,872 Provision for Credit Losses 3,801 (188 ) (5 ) 792 4,400 Net Interest Income After Provision for Credit Losses 61,357 42,119 6,655 (4,659 ) 105,472 Noninterest Income 20,925 5,438 14,549 15,004 55,916 Noninterest Expense (52,260 ) (18,355 ) (15,471 ) (2,482 ) (88,568 ) Income Before Provision for Income Taxes 30,022 29,202 5,733 7,863 72,820 Provision for Income Taxes (10,673 ) (10,256 ) (2,121 ) 1,406 (21,644 ) Net Income $ 19,349 $ 18,946 $ 3,612 $ 9,269 $ 51,176 Total Assets as of March 31, 2017 $ 5,438,421 $ 3,577,524 $ 288,178 $ 7,360,092 $ 16,664,215 Three Months Ended March 31, 2016 Net Interest Income $ 58,010 $ 38,348 $ 6,452 $ 214 $ 103,024 Provision for Credit Losses 2,835 (6,626 ) (6 ) 1,797 (2,000 ) Net Interest Income After Provision for Credit Losses 55,175 44,974 6,458 (1,583 ) 105,024 Noninterest Income 20,807 7,600 14,024 13,776 56,207 Noninterest Expense (52,741 ) (17,268 ) (15,427 ) (1,950 ) (87,386 ) Income Before Provision for Income Taxes 23,241 35,306 5,055 10,243 73,845 Provision for Income Taxes (8,227 ) (12,656 ) (1,870 ) (882 ) (23,635 ) Net Income $ 15,014 $ 22,650 $ 3,185 $ 9,361 $ 50,210 Total Assets as of March 31, 2016 $ 4,763,749 $ 3,196,413 $ 284,891 $ 7,409,642 $ 15,654,695

Pension Plans and Postretiremen

Pension Plans and Postretirement Benefit Plan	3 Months Ended
	Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]
Pension Plans and Postretirement Benefit Plan	Pension Plans and Postretirement Benefit Plan Components of net periodic benefit cost for the Company’s pension plans and the postretirement benefit plan are presented in the following table for the three months ended March 31, 2017 and 2016 . Pension Benefits Postretirement Benefits (dollars in thousands) 2017 2016 2017 2016 Three Months Ended March 31, Service Cost $ — $ — $ 123 $ 137 Interest Cost 1,161 1,209 272 294 Expected Return on Plan Assets (1,238 ) (1,281 ) — — Amortization of: Prior Service Credit — — (81 ) (81 ) Net Actuarial Losses (Gains) 433 389 (110 ) (75 ) Net Periodic Benefit Cost $ 356 $ 317 $ 204 $ 275 The net periodic benefit cost for the Company’s pension plans and postretirement benefit plan are recorded as a component of salaries and benefits in the consolidated statements of income. For the three months ended March 31, 2017 , the Company contributed $0.1 million to the pension plans and $0.2 million to the postretirement benefit plan. The Company expects to contribute a total of $0.5 million to the pension plans and $1.0 million to the postretirement benefit plan for the year ending December 31, 2017 .

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The notional amount and fair value of the Company’s derivative financial instruments as of March 31, 2017 and December 31, 2016 were as follows: March 31, 2017 December 31, 2016 (dollars in thousands) Notional Amount Fair Value Notional Amount Fair Value Interest Rate Lock Commitments $ 51,258 $ 1,262 $ 55,223 $ 1,067 Forward Commitments 60,427 (302 ) 104,962 847 Interest Rate Swap Agreements Receive Fixed/Pay Variable Swaps 359,072 462 357,441 1,381 Pay Fixed/Receive Variable Swaps 359,072 (476 ) 357,441 (1,395 ) Foreign Exchange Contracts 46,740 339 38,172 (757 ) The following table presents the Company’s derivative financial instruments, their fair values, and their location in the consolidated statements of condition as of March 31, 2017 and December 31, 2016 : Derivative Financial Instruments March 31, 2017 December 31, 2016 Not Designated as Hedging Instruments 1 Asset Liability Asset Liability (dollars in thousands) Derivatives Derivatives Derivatives Derivatives Interest Rate Lock Commitments $ 1,262 $ — $ 1,236 $ 169 Forward Commitments 3 305 873 26 Interest Rate Swap Agreements 11,014 11,028 11,569 11,583 Foreign Exchange Contracts 364 25 53 810 Total $ 12,643 $ 11,358 $ 13,731 $ 12,588 1 Asset derivatives are included in other assets and liability derivatives are included in other liabilities in the consolidated statements of condition. The following table presents the Company’s derivative financial instruments and the amount and location of the net gains or losses recognized in the consolidated statements of income for the three months ended March 31, 2017 and 2016 : Location of Derivative Financial Instruments Net Gains (Losses) Three Months Ended Not Designated as Hedging Instruments Recognized in the March 31, (dollars in thousands) Statements of Income 2017 2016 Interest Rate Lock Commitments Mortgage Banking $ 1,267 $ 986 Forward Commitments Mortgage Banking (424 ) (478 ) Interest Rate Swap Agreements Other Noninterest Income 156 109 Foreign Exchange Contracts Other Noninterest Income 1,050 709 Total $ 2,049 $ 1,326 Management has received authorization from the Bank’s Board of Directors to use derivative financial instruments as an end-user in connection with the Bank’s risk management activities and to accommodate the needs of the Bank’s customers. As with any financial instrument, derivative financial instruments have inherent risks. Market risk is defined as the risk of adverse financial impact due to fluctuations in interest rates, foreign exchange rates, and equity prices. Market risks associated with derivative financial instruments are balanced with the expected returns to enhance earnings performance and shareholder value, while limiting the volatility of each. The Company uses various processes to monitor its overall market risk exposure, including sensitivity analysis, value-at-risk calculations, and other methodologies. Derivative financial instruments are also subject to credit and counterparty risk, which is defined as the risk of financial loss if a borrower or counterparty is either unable or unwilling to repay borrowings or settle transactions in accordance with the underlying contractual terms. Credit and counterparty risks associated with derivative financial instruments are similar to those relating to traditional financial instruments. The Company manages derivative credit and counterparty risk by evaluating the creditworthiness of each borrower or counterparty, adhering to the same credit approval process used for commercial lending activities. As of March 31, 2017 and December 31, 2016 , the Company did not designate any derivative financial instruments as formal hedging relationships. The Company’s free-standing derivative financial instruments are required to be carried at their fair value on the Company’s consolidated statements of condition. These financial instruments have been limited to interest rate lock commitments (“IRLCs”), forward commitments, interest rate swap agreements, foreign exchange contracts, and conversion rate swap agreements. The Company enters into IRLCs for residential mortgage loans which commit us to lend funds to a potential borrower at a specific interest rate and within a specified period of time. IRLCs that relate to the origination of mortgage loans that will be held for sale are considered derivative financial instruments under applicable accounting guidance. Outstanding IRLCs expose the Company to the risk that the price of the mortgage loans underlying the commitments may decline due to increases in mortgage interest rates from inception of the rate lock to the funding of the loan. To mitigate this risk, the Company utilizes forward commitments as economic hedges against the potential decreases in the values of the loans held for sale. IRLCs and forward commitments are free-standing derivatives which are carried at fair value with changes recorded in the mortgage banking component of noninterest income in the Company’s consolidated statements of income. The Company enters into interest rate swap agreements to facilitate the risk management strategies of a small number of commercial banking customers. The Company mitigates the interest rate risk of entering into these agreements by entering into equal and offsetting interest rate swap agreements with highly rated third party financial institutions. The interest rate swap agreements are free-standing derivatives and are recorded at fair value in the Company’s consolidated statements of condition. Fair value changes are recorded in other noninterest income in the Company’s consolidated statements of income. The Company is party to master netting arrangements with its financial institution counterparties; however, the Company does not offset assets and liabilities under these arrangements for financial statement presentation purposes. Collateral, usually in the form of cash or marketable securities, is posted by the counterparty with net liability positions in accordance with contract thresholds. See Note 6 Balance Sheet Offsetting for more information. The Company’s interest rate swap agreements with financial institution counterparties may contain credit-risk-related contingent features tied to a specified credit rating of the Company. Under these provisions, should the Company’s specified rating fall below a particular level (e.g., investment grade rating), or if the Company no longer obtains the specified rating, the counterparty may require the Company to pledge collateral on an immediate and ongoing basis (subject to the requirement that such swaps are in a net liability position beyond the level specified in the contract), or require immediate settlement of the swap agreement. Other credit-risk-related contingent features may also allow the counterparty to require immediate settlement of the swap agreement if the Company fails to maintain a specified minimum level of capitalization. The Company utilizes foreign exchange contracts to offset risks related to transactions executed on behalf of customers. The foreign exchange contracts are free-standing derivatives which are carried at fair value with changes included in other noninterest income in the Company’s consolidated statements of income. As each sale of Visa Class B restricted shares was completed, the Company entered into a conversion rate swap agreement with the buyer that requires payment to the buyer in the event Visa further reduces the conversion ratio of Class B into Class A unrestricted common shares. In the event of Visa increasing the conversion ratio, the buyer would be required to make payment to the Company. As of March 31, 2017 , the conversion rate swap agreement was valued at zero (i.e., no contingent liability recorded) as further reductions to the conversion ratio were deemed neither probable nor reasonably estimable by management. See Note 2 Investment Securities for more information.

Commitments, Contingencies, and

Commitments, Contingencies, and Guarantees	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies, and Guarantees	Commitments, Contingencies, and Guarantees The Company’s credit commitments as of March 31, 2017 and December 31, 2016 were as follows: (dollars in thousands) March 31, December 31, Unfunded Commitments to Extend Credit $ 2,728,708 $ 2,732,734 Standby Letters of Credit 126,258 112,830 Commercial Letters of Credit 13,511 16,269 Total Credit Commitments $ 2,868,477 $ 2,861,833 Unfunded Commitments to Extend Credit Commitments to extend credit are agreements to lend to a customer as long as there is no violation of the terms or conditions established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since commitments may expire without being drawn, the total commitment amount does not necessarily represent future cash requirements. Standby and Commercial Letters of Credit Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Standby letters of credit generally become payable upon the failure of the customer to perform according to the terms of the underlying contract with the third party, while commercial letters of credit are issued specifically to facilitate commerce and typically result in the commitment being drawn on when the underlying transaction is consummated between the customer and a third party. The contractual amount of these letters of credit represents the maximum potential future payments guaranteed by the Company. The Company has recourse against the customer for any amount it is required to pay to a third party under a standby letter of credit, and generally holds cash or deposits as collateral on those standby letters of credit for which collateral is deemed necessary. Contingencies The Company is subject to various pending and threatened legal proceedings arising within the normal course of business or operations. On at least a quarterly basis, the Company assesses its liabilities and contingencies in connection with outstanding legal proceedings utilizing the most recent information available. On a case-by-case basis, reserves are established for those legal claims for which it is probable that a loss will be incurred and the amount of such loss can be reasonably estimated. Based on information currently available, management believes that the eventual outcome of these claims against the Company will not be materially in excess of such amounts reserved by the Company. However, in the event of unexpected future developments, it is possible that the ultimate resolution of these matters may result in a loss that materially exceeds the reserves established by the Company. Risks Related to Representation and Warranty Provisions The Company sells residential mortgage loans in the secondary market primarily to the Federal National Mortgage Association (“Fannie Mae”). The Company also pools Federal Housing Administration (“FHA”) insured and U.S. Department of Veterans Affairs (“VA”) guaranteed residential mortgage loans for sale to the Government National Mortgage Corporation (“Ginnie Mae”). These pools of FHA-insured and VA-guaranteed residential mortgage loans are securitized by Ginnie Mae. The agreements under which the Company sells residential mortgage loans to Fannie Mae or Ginnie Mae and the insurance or guaranty agreements with FHA and VA contain provisions that include various representations and warranties regarding the origination and characteristics of the residential mortgage loans. Although the specific representations and warranties vary among investors, insurance or guarantee agreements, they typically cover ownership of the loan, validity of the lien securing the loan, the absence of delinquent taxes or liens against the property securing the loan, compliance with loan criteria set forth in the applicable agreement, compliance with applicable federal, state, and local laws, and other matters. As of March 31, 2017 , the unpaid principal balance of residential mortgage loans sold by the Company was $2.6 billion . The agreements under which the Company sells residential mortgage loans require delivery of various documents to the investor or its document custodian. Although these loans are primarily sold on a non-recourse basis, the Company may be obligated to repurchase residential mortgage loans or reimburse investors for losses incurred if a loan review reveals that underwriting and documentation standards were not met. Some agreements may require the Company to repurchase delinquent loans. Upon receipt of a repurchase request, the Company works with investors or insurers to arrive at a mutually agreeable resolution. Repurchase demands are typically reviewed on an individual loan-by-loan basis to validate the claims made by the investor or insurer and to determine if a contractually required repurchase event has occurred. The Company manages the risk associated with potential repurchases or other forms of settlement through its underwriting and quality assurance practices and by servicing mortgage loans to meet investor and secondary market standards. During the three months ended March 31, 2017 , there were no residential mortgage loans repurchased as a result of the representation and warranty provisions contained in these contracts. As of March 31, 2017 , there was one pending repurchase request totaling $0.5 million related to representation and warranty provisions. Risks Relating to Residential Mortgage Loan Servicing Activities In addition to servicing loans in the Company’s portfolio, substantially all of the loans the Company sells to investors are sold with servicing rights retained. The Company also services loans originated by other mortgage loan originators. As servicer, the Company’s primary duties are to: (1) collect payments due from borrowers; (2) advance certain delinquent payments of principal and interest; (3) maintain and administer any hazard, title, or primary mortgage insurance policies relating to the mortgage loans; (4) maintain any required escrow accounts for payment of taxes and insurance and administer escrow payments; and (5) foreclose on defaulted mortgage loans or, to the extent consistent with the documents governing a securitization, consider alternatives to foreclosure, such as loan modifications or short sales. Each agreement under which the Company acts as servicer generally specifies a standard of responsibility for actions taken by the Company in such capacity and provides protection against expenses and liabilities incurred by the Company when acting in compliance with the respective servicing agreements. However, if the Company commits a material breach of obligations as servicer, the Company may be subject to termination if the breach is not cured within a specified period following notice. The standards governing servicing and the possible remedies for violations of such standards vary by investor. These standards and remedies are determined by servicing guides issued by the investors as well as the contract provisions established between the investors and the Company. Remedies could include repurchase of an affected loan. For the three months ended March 31, 2017 , there were no loans repurchased related to loan servicing activities. As of March 31, 2017 , there were no pending repurchase requests related to loan servicing activities. Although to date repurchase requests related to representation and warranty provisions and servicing activities have been limited, it is possible that requests to repurchase mortgage loans may increase in frequency as investors more aggressively pursue all means of recovering losses on their purchased loans. However, as of March 31, 2017 , management believes that this exposure is not material due to the historical level of repurchase requests and loss trends and thus has not established a liability for losses related to mortgage loan repurchases. As of March 31, 2017 , 99% of the Company’s residential mortgage loans serviced for investors were current. The Company maintains ongoing communications with investors and continues to evaluate this exposure by monitoring the level and number of repurchase requests as well as the delinquency rates in the loans sold to investors.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities Fair Value Hierarchy Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for an asset or liability in an orderly transaction between market participants at the measurement date. GAAP established a fair value hierarchy that prioritizes the use of inputs used in valuation methodologies into the following three levels: Level 1: Inputs to the valuation methodology are quoted prices, unadjusted, for identical assets or liabilities in active markets. A quoted price in an active market provides the most reliable evidence of fair value and is used to measure fair value whenever available. A contractually binding sales price also provides reliable evidence of fair value. Level 2: Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets; inputs to the valuation methodology include quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs to the valuation methodology that utilize model-based techniques for which all significant assumptions are observable in the market. Level 3: Inputs to the valuation methodology are unobservable and significant to the fair value measurement; inputs to the valuation methodology that utilize model-based techniques for which significant assumptions are not observable in the market; or inputs to the valuation methodology that require significant management judgment or estimation, some of which may be internally developed. Management maximizes the use of observable inputs and minimizes the use of unobservable inputs when determining fair value measurements. Management reviews and updates the fair value hierarchy classifications of the Company’s assets and liabilities on a quarterly basis. Assets and Liabilities Measured at Fair Value on a Recurring Basis Investment Securities Available-for-Sale Fair values of investment securities available-for-sale were primarily measured using information from a third-party pricing service. This service provides pricing information by utilizing evaluated pricing models supported with market data information. Standard inputs include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data from market research publications. Level 1 investment securities are comprised of debt securities issued by the U.S. Treasury, as quoted prices were available, unadjusted, for identical securities in active markets. Level 2 investment securities were primarily comprised of debt securities issued by the Small Business Administration, states and municipalities, corporations, as well as mortgage-backed securities issued by government agencies and government-sponsored enterprises. Fair values were estimated primarily by obtaining quoted prices for similar assets in active markets or through the use of pricing models. In cases where there may be limited or less transparent information provided by the Company’s third-party pricing service, fair value may be estimated by the use of secondary pricing services or through the use of non-binding third-party broker quotes. On a quarterly basis, management reviews the pricing information received from the Company’s third-party pricing service. This review process includes a comparison to non-binding third-party broker quotes, as well as a review of market-related conditions impacting the information provided by the Company’s third-party pricing service. Management primarily identifies investment securities which may have traded in illiquid or inactive markets by identifying instances of a significant decrease in the volume or frequency of trades, relative to historical levels, as well as instances of a significant widening of the bid-ask spread in the brokered markets. Investment securities that are deemed to have been trading in illiquid or inactive markets may require the use of significant unobservable inputs to determine fair value. As of March 31, 2017 and December 31, 2016 , management did not make adjustments to prices provided by the third-party pricing service as a result of illiquid or inactive markets. On a quarterly basis, management also reviews a sample of securities priced by the Company’s third-party pricing service to review the significant assumptions and valuation methodologies used by the service. Based on this review, management determines whether the current placement of the security in the fair value hierarchy is appropriate or whether transfers may be warranted. The Company’s third-party pricing service has also established processes for us to submit inquiries regarding quoted prices. Periodically, we will challenge the quoted prices provided by our third-party pricing service. The Company’s third-party pricing service will review the inputs to the evaluation in light of the new market data presented by us. The Company’s third-party pricing service may then affirm the original quoted price or may update the evaluation on a going-forward basis. Loans Held for Sale The fair value of the Company’s residential mortgage loans held for sale was determined based on quoted prices for similar loans in active markets, and therefore, is classified as a Level 2 measurement. Mortgage Servicing Rights Mortgage servicing rights do not trade in an active market with readily observable market data. As a result, the Company estimates the fair value of mortgage servicing rights by using a discounted cash flow model to calculate the present value of estimated future net servicing income. The Company stratifies its mortgage servicing portfolio on the basis of loan type. The assumptions used in the discounted cash flow model are those that we believe market participants would use in estimating future net servicing income. Significant assumptions in the valuation of mortgage servicing rights include estimated loan repayment rates, the discount rate, servicing costs, and the timing of cash flows, among other factors. Mortgage servicing rights are classified as Level 3 measurements due to the use of significant unobservable inputs, as well as significant management judgment and estimation. Other Assets Other assets recorded at fair value on a recurring basis are primarily comprised of investments related to deferred compensation arrangements. Quoted prices for these investments, primarily in mutual funds, are available in active markets. Thus, the Company’s investments related to deferred compensation arrangements are classified as Level 1 measurements in the fair value hierarchy. Derivative Financial Instruments Derivative financial instruments recorded at fair value on a recurring basis are comprised of interest rate lock commitments (“IRLCs”), forward commitments, interest rate swap agreements, foreign exchange contracts, and Visa Class B to Class A shares conversion rate swap agreements. The fair values of IRLCs are calculated based on the value of the underlying loan held for sale, which in turn is based on quoted prices for similar loans in the secondary market. However, this value is adjusted by a factor which considers the likelihood that the loan in a locked position will ultimately close. This factor, the closing ratio, is derived from the Bank’s internal data and is adjusted using significant management judgment. As such, IRLCs are classified as Level 3 measurements. Forward commitments are classified as Level 2 measurements as they are primarily based on quoted prices from the secondary market based on the settlement date of the contracts, interpolated or extrapolated, if necessary, to estimate a fair value as of the end of the reporting period. The fair values of interest rate swap agreements are calculated using a discounted cash flow approach and utilize Level 2 observable inputs such as a market yield curve, effective date, maturity date, notional amount, and stated interest rate. In addition, the Company includes in its fair value calculation a credit factor adjustment which is based primarily on management judgment. Thus, interest rate swap agreements are classified as a Level 3 measurement. The fair values of foreign exchange contracts are calculated using the Bank’s multi-currency accounting system which utilizes contract specific information such as currency, maturity date, contractual amount, and strike price, along with market data information such as the spot rates of specific currency and yield curves. Foreign exchange contracts are classified as Level 2 measurements because while they are valued using the Bank’s multi-currency accounting system, significant management judgment or estimation is not required. The fair value of the Visa Class B restricted shares to Class A unrestricted common shares conversion rate swap agreements represent the amount owed by the Company to the buyer of the Visa Class B shares as a result of a reduction of the conversion ratio subsequent to the sales date. As of March 31, 2017 and December 31, 2016 , the conversion rate swap agreements were valued at zero as reductions to the conversion ratio were neither probable nor reasonably estimable by management. See Note 11 Derivative Financial Instruments for more information. The Company is exposed to credit risk if borrowers or counterparties fail to perform. The Company seeks to minimize credit risk through credit approvals, limits, monitoring procedures, and collateral requirements. The Company generally enters into transactions with borrowers and counterparties that carry high quality credit ratings. Credit risk associated with borrowers or counterparties as well as the Company’s non-performance risk is factored into the determination of the fair value of derivative financial instruments. The table below presents the balances of assets and liabilities measured at fair value on a recurring basis as of March 31, 2017 and December 31, 2016 : Quoted Prices in Active Markets for Identical Assets or Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (dollars in thousands) (Level 1) (Level 2) (Level 3) Total March 31, 2017 Assets: Investment Securities Available-for-Sale Debt Securities Issued by the U.S. Treasury and Government Agencies $ 540 $ 429,284 $ — $ 429,824 Debt Securities Issued by States and Political Subdivisions — 681,954 — 681,954 Debt Securities Issued by Corporations — 264,963 — 264,963 Mortgage-Backed Securities: Residential - Government Agencies — 253,291 — 253,291 Residential - U.S. Government-Sponsored Enterprises — 629,071 — 629,071 Commercial - Government Agencies — 82,467 — 82,467 Total Mortgage-Backed Securities — 964,829 — 964,829 Total Investment Securities Available-for-Sale 540 2,341,030 — 2,341,570 Loans Held for Sale — 20,899 — 20,899 Mortgage Servicing Rights — — 1,586 1,586 Other Assets 22,004 — — 22,004 Derivatives 1 — 367 12,276 12,643 Total Assets Measured at Fair Value on a $ 22,544 $ 2,362,296 $ 13,862 $ 2,398,702 Liabilities: Derivatives 1 $ — $ 330 $ 11,028 $ 11,358 Total Liabilities Measured at Fair Value on a $ — $ 330 $ 11,028 $ 11,358 December 31, 2016 Assets: Investment Securities Available-for-Sale Debt Securities Issued by the U.S. Treasury and Government Agencies $ 539 $ 408,176 $ — $ 408,715 Debt Securities Issued by States and Political Subdivisions — 671,799 — 671,799 Debt Securities Issued by Corporations — 269,179 — 269,179 Mortgage-Backed Securities: Residential - Government Agencies — 243,844 — 243,844 Residential - U.S. Government-Sponsored Enterprises — 506,987 — 506,987 Commercial - Government Agencies — 85,517 — 85,517 Total Mortgage-Backed Securities — 836,348 — 836,348 Total Investment Securities Available-for-Sale 539 2,185,502 — 2,186,041 Loans Held for Sale — 62,499 — 62,499 Mortgage Servicing Rights — — 1,655 1,655 Other Assets 21,952 — — 21,952 Derivatives 1 — 926 12,805 13,731 Total Assets Measured at Fair Value on a $ 22,491 $ 2,248,927 $ 14,460 $ 2,285,878 Liabilities: Derivatives 1 $ — $ 836 $ 11,752 $ 12,588 Total Liabilities Measured at Fair Value on a $ — $ 836 $ 11,752 $ 12,588 1 The fair value of each class of derivatives is shown in Note 11 Derivative Financial Instruments . For the three months ended March 31, 2017 and 2016 , the changes in Level 3 assets and liabilities measured at fair value on a recurring basis were as follows: (dollars in thousands) Mortgage Servicing Rights 1 Net Derivative Assets and Liabilities 2 Three Months Ended March 31, 2017 Balance as of January 1, 2017 $ 1,655 $ 1,053 Realized and Unrealized Net Gains (Losses): Included in Net Income (69 ) 1,267 Transfers to Loans Held for Sale — (1,072 ) Balance as of March 31, 2017 $ 1,586 $ 1,248 Total Unrealized Net Gains (Losses) Included in Net Income $ — $ 1,248 Three Months Ended March 31, 2016 Balance as of January 1, 2016 $ 1,970 $ 240 Realized and Unrealized Net Gains (Losses): Included in Net Income (60 ) 972 Transfers to Loans Held for Sale — (841 ) Balance as of March 31, 2016 $ 1,910 $ 371 Total Unrealized Net Gains (Losses) Included in Net Income $ — $ 371 1 Realized and unrealized gains and losses related to mortgage servicing rights are reported as a component of mortgage banking income in the Company’s consolidated statements of income. 2 Realized and unrealized gains and losses related to interest rate lock commitments are reported as a component of mortgage banking income in the Company’s consolidated statements of income. Realized and unrealized gains and losses related to interest rate swap agreements are reported as a component of other noninterest income in the Company’s consolidated statements of income. For Level 3 assets and liabilities measured at fair value on a recurring or nonrecurring basis as of March 31, 2017 and December 31, 2016 , the significant unobservable inputs used in the fair value measurements were as follows: Significant Unobservable Inputs (weighted-average) Fair Value (dollars in thousands) Valuation Technique Description Mar. 31, Dec. 31, Mar. 31, Dec. 31, Mortgage Servicing Rights Discounted Cash Flow Constant Prepayment Rate 1 8.07 % 8.13 % $ 27,532 $ 26,803 Discount Rate 2 9.00 % 9.33 % Net Derivative Assets and Liabilities: Interest Rate Lock Commitments Pricing Model Closing Ratio 91.47 % 92.26 % $ 1,262 $ 1,067 Interest Rate Swap Agreements Discounted Cash Flow Credit Factor 0.12 % 0.13 % $ (14 ) $ (14 ) 1 Represents annualized loan repayment rate assumption. 2 Derived from multiple interest rate scenarios that incorporate a spread to a market yield curve and market volatilities. The significant unobservable inputs used in the fair value measurement of the Company’s mortgage servicing rights are the weighted-average constant prepayment rate and weighted-average discount rate. Significant increases (decreases) in any of those inputs in isolation could result in a significantly lower (higher) fair value measurement. Although the constant prepayment rate and the discount rate are not directly interrelated, they generally move in opposite directions of each other. The Company estimates the fair value of mortgage servicing rights by using a discounted cash flow model to calculate the present value of estimated future net servicing income. The Company’s Treasury Division enters observable and unobservable inputs into the model to arrive at an estimated fair value. To assess the reasonableness of the fair value measurement, the Treasury Division performs a back-test by applying the model to historical prepayment data. The fair value and constant prepayment rate are also compared to forward-looking estimates to assess reasonableness. The Treasury Division also compares the fair value of the Company’s mortgage servicing rights to a value calculated by an independent third party. Discussions are held with members from the Treasury, Mortgage Banking, and Controllers Divisions, along with the independent third party to discuss and reconcile the fair value estimates and key assumptions used by the respective parties in arriving at those estimates. A subcommittee of the Company’s Asset/Liability Management Committee is responsible for providing oversight over the valuation methodology and key assumptions. The significant unobservable input used in the fair value measurement of the Company’s IRLCs is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. Generally, the fair value of an IRLC is positive (negative) if the prevailing interest rate is lower (higher) than the IRLC rate. Therefore, an increase in the closing ratio (i.e., higher percentage of loans are estimated to close) will increase the gain or loss. The closing ratio is largely dependent on the loan processing stage that a loan is currently in and the change in prevailing interest rates from the time of the rate lock. The closing ratio is computed by our secondary marketing system using historical data and the ratio is periodically reviewed by the Company’s Secondary Marketing Department of the Mortgage Banking Division for reasonableness. The unobservable input used in the fair value measurement of the Company’s interest rate swap agreements is the credit factor. This factor represents the risk that a counterparty is either unable or unwilling to settle a transaction in accordance with the underlying contractual terms. A significant increase (decrease) in the credit factor could result in a significantly lower (higher) fair value measurement. The credit factor is determined by the Treasury Division based on the risk rating assigned to each counterparty in which the Company holds a net asset position. The Company’s Credit Policy Committee periodically reviews and approves the Expected Default Frequency of the Economic Capital Model for Credit Risk. The Expected Default Frequency is used as the credit factor for interest rate swap agreements. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis The Company may be required periodically to measure certain assets and liabilities at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower-of-cost-or-fair value accounting or impairment write-downs of individual assets. The following table represents the assets measured at fair value on a nonrecurring basis as of March 31, 2017 . There were no assets measured at fair value on a nonrecurring basis as of December 31, 2016 . (dollars in thousands) Fair Value Hierarchy Net Carrying Amount Valuation Allowance March 31, 2017 Foreclosed Real Estate Level 3 $ 2,529 $ 19 The foreclosed real estate valuation allowance was based on a recent appraisal on one residential property. Fair Value Option The Company elects the fair value option for all residential mortgage loans held for sale. This election allows for a more effective offset of the changes in fair values of the loans held for sale and the derivative financial instruments used to financially hedge them without having to apply complex hedge accounting requirements. As noted above, the fair value of the Company’s residential mortgage loans held for sale was determined based on quoted prices for similar loans in active markets. The following table reflects the difference between the aggregate fair value and the aggregate unpaid principal balance of the Company’s residential mortgage loans held for sale as of March 31, 2017 and December 31, 2016 . (dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Aggregate Fair Value Unpaid Principal March 31, 2017 Loans Held for Sale $ 20,899 $ 20,419 $ 480 December 31, 2016 Loans Held for Sale $ 62,499 $ 61,782 $ 717 Changes in the estimated fair value of residential mortgage loans held for sale are reported as a component of mortgage banking income in the Company’s consolidated statements of income. For the three months ended March 31, 2017 and 2016 , the net gains or losses from the change in fair value of the Company’s residential mortgage loans held for sale were not material. Financial Instruments Not Recorded at Fair Value on a Recurring Basis The assumptions used below are expected to approximate those that market participants would use in valuing these financial instruments. Investment Securities Held-to-Maturity The fair value of the Company’s investment securities held-to-maturity was primarily measured using information from a third-party pricing service. Level 1 investment securities are comprised of debt securities issued by the U.S. Treasury as quoted prices were available, unadjusted, for identical securities in active markets. If quoted prices were not available, fair values were estimated primarily by obtaining quoted prices for similar assets in active markets or through the use of pricing models. In cases where there may be limited or less transparent information provided by the Company’s third-party pricing service, fair value may be estimated by the use of secondary pricing services or through the use of non-binding third-party broker quotes. Loans The fair value of the Company’s loans was estimated by discounting the expected future cash flows using the current interest rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. Loans were first segregated by type such as commercial, real estate, and consumer, and were then further segmented into fixed and variable rate. Expected future cash flows were projected based on contractual cash flows, adjusted for estimated prepayments. Time Deposits The fair value of the Company’s time deposits was calculated using discounted cash flow analyses, applying discount rates based on market yield curve rates for similar maturities. The fair values of the Company’s time deposit liabilities do not take into consideration the value of the Company’s long-term relationships with depositors, which may have significant value. Securities Sold Under Agreements to Repurchase The fair value of the Company’s securities sold under agreements to repurchase was calculated using discounted cash flow analyses, applying discount rates based on market yield curve rates for similar maturities. Other Debt The fair value of the Company’s other debt was calculated using a discounted cash flow analyses, applying discount rates based on market yield curve rates for similar maturities. The following presents the carrying amount, fair value, and placement in the fair value hierarchy of the Company’s financial instruments not recorded at fair value on a recurring basis as of March 31, 2017 and December 31, 2016 . This table excludes financial instruments for which the carrying amount approximates fair value. For short-term financial assets such as cash and cash equivalents, the carrying amount is a reasonable estimate of fair value due to the relatively short time between the origination of the instrument and its expected realization. For non-marketable equity securities such as Federal Home Loan Bank and Federal Reserve Bank stock, the carrying amount is a reasonable estimate of fair value as these securities can only be redeemed or sold at their par value and only to the respective issuing government supported institution or to another member institution. For financial liabilities such as noninterest-bearing demand, interest-bearing demand, and savings deposits, the carrying amount is a reasonable estimate of fair value due to these products having no stated maturity. Fair Value Measurements Carrying Quoted Prices in Active Markets for Identical Assets or Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (dollars in thousands) Amount Fair Value (Level 1) (Level 2) (Level 3) March 31, 2017 Financial Instruments - Assets Investment Securities Held-to-Maturity $ 3,848,088 $ 3,848,609 $ 530,513 $ 3,318,096 $ — Loans 1 8,742,348 8,880,551 — — 8,880,551 Financial Instruments - Liabilities Time Deposits 1,400,097 1,394,757 — 1,394,757 — Securities Sold Under Agreements to Repurchase 505,292 505,265 — 505,265 — Other Debt 2 257,153 256,312 — 256,312 — December 31, 2016 Financial Instruments - Assets Investment Securities Held-to-Maturity $ 3,832,997 $ 3,827,527 $ 530,940 $ 3,296,587 $ — Loans 1 8,583,726 8,743,191 — — 8,743,191 Financial Instruments - Liabilities Time Deposits 1,217,707 1,213,705 — 1,213,705 — Securities Sold Under Agreements to Repurchase 523,378 523,374 — 523,374 — Other Debt 2 257,153 256,718 — 256,718 — 1 Net of unearned income and the Allowance. 2 Excludes capitalized lease obligations.

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Bank of Hawaii Corporation (the “Parent”) is a Delaware corporation and a bank holding company headquartered in Honolulu, Hawaii. Bank of Hawaii Corporation and its subsidiaries (collectively, the “Company”) provide a broad range of financial products and services to customers in Hawaii, Guam, and other Pacific Islands. The accompanying consolidated financial statements include the accounts of the Parent and its subsidiaries. The Parent’s principal operating subsidiary is Bank of Hawaii (the “Bank”). The consolidated financial statements in this report have not been audited by an independent registered public accounting firm, but in the opinion of management, reflect all adjustments necessary for a fair presentation of the results for the interim periods. All such adjustments are of a normal recurring nature. All significant intercompany accounts and transactions have been eliminated in consolidation. Certain prior period information has been reclassified to conform to the current period presentation. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for the full fiscal year or for any future period. The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and accompanying notes required by GAAP for complete financial statements and should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 .
Use of Estimates in the Preparation of Financial Statements	Use of Estimates in the Preparation of Financial Statements The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. Actual results may differ from those estimates and such differences could be material to the financial statements.
Variable Interest Entities	Variable Interest Entities Variable interests are defined as contractual ownership or other interests in an entity that change with fluctuations in an entity’s net asset value. The primary beneficiary consolidates the variable interest entity (“VIE”). The primary beneficiary is defined as the enterprise that has both the power to direct the activities of the VIE that most significantly impact the entity’s economic performance and the obligation to absorb losses or the right to receive benefits that could be significant to the VIE. The Company has limited partnership interests in several low-income housing partnerships. These partnerships provide funds for the construction and operation of apartment complexes that provide affordable housing to lower-income households. If these developments successfully attract a specified percentage of residents falling in that lower-income range, state and/or federal income tax credits are made available to the partners. The tax credits are generally recognized over 10 years. In order to continue receiving the tax credits each year over the life of the partnership, the low-income residency targets must be maintained. Prior to January 1, 2015, the Company utilized the effective yield method whereby the Company recognized tax credits generally over 10 years and amortized the initial cost of the investment to provide a constant effective yield over the period that tax credits are allocated to the Company. On January 1, 2015, the Company adopted ASU No. 2014-01, “Accounting for Investments in Qualified Affordable Housing Projects” prospectively for new investments. ASU No. 2014-01 permits reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. As permitted by ASU No. 2014-01, the Company elected to continue to utilize the effective yield method for investments made prior to January 1, 2015. Unfunded commitments to fund these low-income housing partnerships were $21.2 million and $16.2 million as of March 31, 2017 and December 31, 2016 , respectively. These unfunded commitments are unconditional and legally binding and are recorded in other liabilities in the consolidated statements of condition. See Note 5 Affordable Housing Projects Tax Credit Partnerships for more information. The Company also has limited partnership interests in solar energy tax credit partnership investments. These partnerships develop, build, own and operate solar renewable energy projects. Over the course of these investments, the Company expects to receive federal and state tax credits, tax-related benefits, and excess cash available for distribution, if any. The Company may be called to sell its interest in the limited partnerships through a call option once all investment tax credits have been recognized. Tax benefits associated with these investments are generally recognized over 6 years. These entities meet the definition of a VIE; however, the Company is not the primary beneficiary of the entities as the general partner has both the power to direct the activities that most significantly impact the economic performance of the entities and the obligation to absorb losses or the right to receive benefits that could be significant to the entities. While the partnership agreements allow the limited partners, through a majority vote, to remove the general partner, this right is not deemed to be substantive as the general partner can only be removed for cause. The investments in these entities are initially recorded at cost, which approximates the maximum exposure to loss as a result of the Company’s involvement with these unconsolidated entities. The balance of the Company’s investments in these entities was $80.9 million and $78.9 million as of March 31, 2017 and December 31, 2016 , respectively, and is included in other assets in the consolidated statements of condition.
Accounting Standards Adopted in the Current Year or Pending Adoption	Accounting Standards Adopted in 2017 In March 2016, the FASB issued ASU No. 2016-09, “Improvements to Employee Share-Based Payment Accounting.” This ASU includes provisions intended to simplify various aspects related to how share-based payments are accounted for and presented in the financial statements. Some of the key provisions of this new ASU include: (1) companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital (“APIC”). Instead, they will record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement, and APIC pools will be eliminated. The guidance also eliminates the requirement that excess tax benefits be realized before companies can recognize them. In addition, the guidance requires companies to present excess tax benefits as an operating activity on the statement of cash flows rather than as a financing activity; (2) increase the amount an employer can withhold to cover income taxes on awards and still qualify for the exception to liability classification for shares used to satisfy the employer’s statutory income tax withholding obligation. The new guidance will also require an employer to classify the cash paid to a tax authority when shares are withheld to satisfy its statutory income tax withholding obligation as a financing activity on its statement of cash flows (current guidance did not specify how these cash flows should be classified); and (3) permit companies to make an accounting policy election for the impact of forfeitures on the recognition of expense for share-based payment awards. Forfeitures can be estimated, as required today, or recognized when they occur. ASU No. 2016-09 is effective for interim and annual reporting periods beginning after December 15, 2016. The Company adopted ASU No. 2016-09 on January 1, 2017 and elected to recognize forfeitures as they occur. As allowed by the ASU, the Company’s adoption was prospective, therefore, prior periods have not been adjusted. The adoption of ASU No. 2016-09 could result in increased volatility to reported income tax expense related to excess tax benefits and tax deficiencies for employee share-based transactions, however, the actual amounts recognized in income tax expense will be dependent on the amount of employee share-based transactions and the stock price at the time of vesting or exercise. For the first quarter of 2017 , the adoption of ASU No. 2016-09 resulted in a decrease to the provision for income taxes primarily due to the tax benefit from the exercise of stock options and the vesting of restricted stock. Accounting Standards Pending Adoption In May 2014, the FASB and the International Accounting Standards Board (the “IASB”) jointly issued a comprehensive new revenue recognition standard that will supersede nearly all existing revenue recognition guidance under GAAP and International Financial Reporting Standards (“IFRS”). Previous revenue recognition guidance in GAAP consisted of broad revenue recognition concepts together with numerous revenue requirements for particular industries or transactions, which sometimes resulted in different accounting for economically similar transactions. In contrast, IFRS provided limited revenue recognition guidance and, consequently, could be difficult to apply to complex transactions. Accordingly, the FASB and the IASB initiated a joint project to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP and IFRS that would: (1) remove inconsistencies and weaknesses in revenue requirements; (2) provide a more robust framework for addressing revenue issues; (3) improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets; (4) provide more useful information to users of financial statements through improved disclosure requirements; and (5) simplify the preparation of financial statements by reducing the number of requirements to which an entity must refer. To meet those objectives, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers.” The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, companies generally will be required to use more judgment and make more estimates than under current guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. The standard was initially effective for public entities for interim and annual reporting periods beginning after December 15, 2016; early adoption was not permitted. However, in August 2015, the FASB issued ASU No. 2015-14, “Revenue from Contracts with Customers - Deferral of the Effective Date” which deferred the effective date by one year (i.e., interim and annual reporting periods beginning after December 15, 2017). For financial reporting purposes, the standard allows for either full retrospective adoption, meaning the standard is applied to all of the periods presented, or modified retrospective adoption, meaning the standard is applied only to the most current period presented in the financial statements with the cumulative effect of initially applying the standard recognized at the date of initial application. In addition, the FASB has begun to issue targeted updates to clarify specific implementation issues of ASU 2014-09. These updates include ASU No. 2016-08, “Principal versus Agent Considerations (Reporting Revenue Gross versus Net),” ASU No. 2016-10, “Identifying Performance Obligations and Licensing,” ASU No. 2016-12, “Narrow-Scope Improvements and Practical Expedients,” and ASU No. 2016-20 “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers.” Since the guidance does not apply to revenue associated with financial instruments, including loans and securities that are accounted for under other GAAP, the Company does not expect the new guidance to have a material impact on revenue most closely associated with financial instruments, including interest income and expense. The Company is currently performing an overall assessment of revenue streams and reviewing contracts potentially affected by the ASU including trust and asset management fees, deposit related fees, interchange fees, and merchant income, to determine the potential impact the new guidance is expected to have on the Company’s Consolidated Financial Statements. In addition, the Company continues to follow certain implementation issues relevant to the banking industry which are still pending resolution. The Company plans to adopt ASU No. 2014-09 on January 1, 2018 utilizing the modified retrospective approach. In January 2016, the FASB issued ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities.” This ASU addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments by making targeted improvements to GAAP as follows: (1) require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer; (2) simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. When a qualitative assessment indicates that impairment exists, an entity is required to measure the investment at fair value; (3) eliminate the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities; (4) eliminate the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; (5) require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (6) require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; (7) require separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (that is, securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; and (8) clarify that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. ASU No. 2016-01 is effective for interim and annual reporting periods beginning after December 15, 2017. Early application is permitted as of the beginning of the fiscal year of adoption only for provisions (3) and (6) above. Early adoption of the other provisions mentioned above is not permitted. The Company has performed a preliminary evaluation of the provisions of ASU No. 2016-01. Based on this evaluation, the Company has determined that ASU No. 2016-01 is not expected to have a material impact on the Company’s Consolidated Financial Statements; however, the Company will continue to closely monitor developments and additional guidance. In February 2016, the FASB issued ASU No. 2016-02, “Leases.” Under the new guidance, lessees will be required to recognize the following for all leases (with the exception of short-term leases): 1) a lease liability, which is the present value of a lessee’s obligation to make lease payments, and 2) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting under the new guidance remains largely unchanged as it is substantially equivalent to existing guidance for sales-type leases, direct financing leases, and operating leases. Leveraged leases have been eliminated, although lessors can continue to account for existing leveraged leases using the current accounting guidance. Other limited changes were made to align lessor accounting with the lessee accounting model and the new revenue recognition standard . All entities will classify leases to determine how to recognize lease-related revenue and expense. Quantitative and qualitative disclosures will be required by lessees and lessors to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The intention is to require enough information to supplement the amounts recorded in the financial statements so that users can understand more about the nature of an entity’s leasing activities. ASU No. 2016-02 is effective for interim and annual reporting periods beginning after December 15, 2018; early adoption is permitted. All entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. They have the option to use certain relief; full retrospective application is prohibited. The Company has several lease agreements, such as branch locations, which are currently considered operating leases, and therefore, not recognized on the Company’s consolidated statements of condition. The Company expects the new guidance will require these lease agreements to now be recognized on the consolidated statements of condition as a right-of-use asset and a corresponding lease liability. Therefore, the Company’s preliminary evaluation indicates the provisions of ASU No. 2016-02 are expected to impact the Company’s consolidated statements of condition. However, the Company continues to evaluate the extent of potential impact the new guidance will have on the Company’s Consolidated Financial Statements. In June 2016, the FASB issued ASU No. 2016-13, “Measurement of Credit Losses on Financial Instruments.” This ASU significantly changes how entities will measure credit losses for most financial assets and certain other instruments that aren’t measured at fair value through net income. In issuing the standard, the FASB is responding to criticism that today’s guidance delays recognition of credit losses. The standard will replace today’s “incurred loss” approach with an “expected loss” model. The new model, referred to as the current expected credit loss (“CECL”) model, will apply to: (1) financial assets subject to credit losses and measured at amortized cost, and (2) certain off-balance sheet credit exposures. This includes, but is not limited to, loans, leases, held-to-maturity securities, loan commitments, and financial guarantees. The CECL model does not apply to available-for-sale (“AFS”) debt securities. For AFS debt securities with unrealized losses, entities will measure credit losses in a manner similar to what they do today, except that the losses will be recognized as allowances rather than reductions in the amortized cost of the securities. As a result, entities will recognize improvements to estimated credit losses immediately in earnings rather than as interest income over time, as they do today. The ASU also simplifies the accounting model for purchased credit-impaired debt securities and loans. ASU 2016-13 also expands the disclosure requirements regarding an entity’s assumptions, models, and methods for estimating the allowance for loan and lease losses. In addition, entities will need to disclose the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination. ASU No. 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019; early adoption is permitted for interim and annual reporting periods beginning after December 15, 2018. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (i.e., modified retrospective approach). The Company has begun its implementation efforts by establishing a Company-wide implementation team. This team has assigned roles and responsibilities, key tasks to complete, and a general timeline to be followed. The implementation team meets periodically to discuss the latest developments and ensure progress is being made. The Company’s preliminary evaluation indicates the provisions of ASU No. 2016-13 are expected to impact the Company’s Consolidated Financial Statements, in particular the level of the reserve for credit losses. However, the Company continues to evaluate the extent of the potential impact. In August 2016, the FASB issued ASU No. 2016-15, “Classification of Certain Cash Receipts and Cash Payments.” Current GAAP is unclear or does not include specific guidance on how to classify certain transactions in the statement of cash flows. This ASU is intended to reduce diversity in practice in how eight particular transactions are classified in the statement of cash flows. ASU No. 2016-15 is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted, provided that all of the amendments are adopted in the same period. Entities will be required to apply the guidance retrospectively. If it is impracticable to apply the guidance retrospectively for an issue, the amendments related to that issue would be applied prospectively. As this guidance only affects the classification within the statement of cash flows, ASU No. 2016-15 is not expected to have a material impact on the Company’s Consolidated Financial Statements. In January 2017, the FASB issued ASU No. 2017-04, “Simplifying the Test for Goodwill Impairment.” The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. ASU No. 2017-04 is effective for interim and annual reporting periods beginning after December 15, 2019, applied prospectively. Early adoption is permitted for any impairment tests performed after January 1, 2017. The Company expects to early adopt upon the next goodwill impairment test in 2017. ASU No. 2017-04 is not expected to have a material impact on the Company’s Consolidated Financial Statements. In March 2017, the FASB issued ASU No. 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” Under the new guidance, employers will present the service cost component of the net periodic benefit cost in the same income statement line item (e.g., Salaries and Benefits) as other employee compensation costs arising from services rendered during the period. In addition, only the service cost component will be eligible for capitalization in assets. Employers will present the other components separately (e.g., Other Noninterest Expense) from the line item that includes the service cost. ASU No. 2017-07 is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted, however, the Company has decided not to early adopt. Employers will apply the guidance on the presentation of the components of net periodic benefit cost in the income statement retrospectively. The guidance limiting the capitalization of net periodic benefit cost in assets to the service cost component will be applied prospectively. The Company expects to utilize the ASU’s practical expedient allowing entities to estimate amounts for comparative periods using the information previously disclosed in their pension and other postretirement benefit plan footnote. ASU No. 2017-07 is not expected to have a material impact on the Company’s Consolidated Financial Statements. In March 2017, the FASB issued ASU No. 2017-08, “Premium Amortization on Purchased Callable Debt Securities.” This ASU shortens the amortization period for the premium on certain purchased callable debt securities to the earliest call date. Today, entities generally amortize the premium over the contractual life of the security. The new guidance does not change the accounting for purchased callable debt securities held at a discount; the discount continues to be amortized to maturity. ASU No. 2017-08 is effective for interim and annual reporting periods beginning after December 15, 2018; early adoption is permitted. The guidance calls for a modified retrospective transition approach under which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The Company is currently evaluating the provisions of ASU No. 2017-08 to determine the potential impact the new standard will have on the Company’s Consolidated Financial Statements.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized cost, gross unrealized gains and losses, and fair value of investment securities	The amortized cost, gross unrealized gains and losses, and fair value of the Company’s investment securities as of March 31, 2017 and December 31, 2016 were as follows: (dollars in thousands) Amortized Cost Gross Gross Fair Value March 31, 2017 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 428,615 $ 2,532 $ (1,323 ) $ 429,824 Debt Securities Issued by States and Political Subdivisions 666,257 15,988 (291 ) 681,954 Debt Securities Issued by Corporations 268,031 137 (3,205 ) 264,963 Mortgage-Backed Securities: Residential - Government Agencies 250,178 4,280 (1,167 ) 253,291 Residential - U.S. Government-Sponsored Enterprises 633,194 1,064 (5,187 ) 629,071 Commercial - Government Agencies 85,617 — (3,150 ) 82,467 Total Mortgage-Backed Securities 968,989 5,344 (9,504 ) 964,829 Total $ 2,331,892 $ 24,001 $ (14,323 ) $ 2,341,570 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 530,131 $ 1,181 $ (799 ) $ 530,513 Debt Securities Issued by States and Political Subdivisions 241,358 13,360 — 254,718 Debt Securities Issued by Corporations 131,652 286 (1,662 ) 130,276 Mortgage-Backed Securities: Residential - Government Agencies 1,950,475 18,543 (21,880 ) 1,947,138 Residential - U.S. Government-Sponsored Enterprises 770,674 1,142 (9,516 ) 762,300 Commercial - Government Agencies 223,798 1,694 (1,828 ) 223,664 Total Mortgage-Backed Securities 2,944,947 21,379 (33,224 ) 2,933,102 Total $ 3,848,088 $ 36,206 $ (35,685 ) $ 3,848,609 December 31, 2016 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 407,478 $ 2,531 $ (1,294 ) $ 408,715 Debt Securities Issued by States and Political Subdivisions 662,231 11,455 (1,887 ) 671,799 Debt Securities Issued by Corporations 273,044 5 (3,870 ) 269,179 Mortgage-Backed Securities: Residential - Government Agencies 240,412 4,577 (1,145 ) 243,844 Residential - U.S. Government-Sponsored Enterprises 511,234 971 (5,218 ) 506,987 Commercial - Government Agencies 89,544 — (4,027 ) 85,517 Total Mortgage-Backed Securities 841,190 5,548 (10,390 ) 836,348 Total $ 2,183,943 $ 19,539 $ (17,441 ) $ 2,186,041 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 530,149 $ 1,562 $ (771 ) $ 530,940 Debt Securities Issued by States and Political Subdivisions 242,295 9,991 — 252,286 Debt Securities Issued by Corporations 135,620 416 (1,528 ) 134,508 Mortgage-Backed Securities: Residential - Government Agencies 1,940,076 20,567 (23,861 ) 1,936,782 Residential - U.S. Government-Sponsored Enterprises 752,768 798 (10,919 ) 742,647 Commercial - Government Agencies 232,089 940 (2,665 ) 230,364 Total Mortgage-Backed Securities 2,924,933 22,305 (37,445 ) 2,909,793 Total $ 3,832,997 $ 34,274 $ (39,744 ) $ 3,827,527
Analysis of the contractual maturities of investment securities	The table below presents an analysis of the contractual maturities of the Company’s investment securities as of March 31, 2017 . Debt securities issued by government agencies (Small Business Administration securities) and mortgage-backed securities are disclosed separately in the table below as these investment securities may prepay prior to their scheduled contractual maturity dates. (dollars in thousands) Amortized Cost Fair Value Available-for-Sale: Due in One Year or Less $ 55,362 $ 55,427 Due After One Year Through Five Years 587,856 591,262 Due After Five Years Through Ten Years 249,876 256,495 Due After Ten Years 41,743 44,273 934,837 947,457 Debt Securities Issued by Government Agencies 428,066 429,284 Mortgage-Backed Securities: Residential - Government Agencies 250,178 253,291 Residential - U.S. Government-Sponsored Enterprises 633,194 629,071 Commercial - Government Agencies 85,617 82,467 Total Mortgage-Backed Securities 968,989 964,829 Total $ 2,331,892 $ 2,341,570 Held-to-Maturity: Due in One Year or Less $ 194,986 $ 194,935 Due After One Year Through Five Years 406,361 409,325 Due After Five Years Through Ten Years 252,762 259,221 Due After Ten Years 49,032 52,026 903,141 915,507 Mortgage-Backed Securities: Residential - Government Agencies 1,950,475 1,947,138 Residential - U.S. Government-Sponsored Enterprises 770,674 762,300 Commercial - Government Agencies 223,798 223,664 Total Mortgage-Backed Securities 2,944,947 2,933,102 Total $ 3,848,088 $ 3,848,609
Schedule of gains (losses) on sale of investment securities	The table below presents the gains and losses from the sales of investment securities for the three months ended March 31, 2017 and 2016 . Three Months Ended (dollars in thousands) 2017 2016 Gross Gains on Sales of Investment Securities $ 12,467 $ 11,355 Gross Losses on Sales of Investment Securities (334 ) (175 ) Net Gains (Losses) on Sales of Investment Securities $ 12,133 $ 11,180
Schedule of investment securities in an unrealized loss position	The Company’s investment securities in an unrealized loss position, segregated by continuous length of impairment, were as follows: Less Than 12 Months 12 Months or Longer Total (dollars in thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses March 31, 2017 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 117,681 $ (404 ) $ 130,056 $ (919 ) $ 247,737 $ (1,323 ) Debt Securities Issued by States and Political Subdivisions 78,130 (291 ) — — 78,130 (291 ) Debt Securities Issued by Corporations 67,334 (702 ) 162,491 (2,503 ) 229,825 (3,205 ) Mortgage-Backed Securities: Residential - Government Agencies 34,368 (72 ) 10,105 (1,095 ) 44,473 (1,167 ) Residential - U.S. Government-Sponsored Enterprises 495,584 (5,187 ) — — 495,584 (5,187 ) Commercial - Government Agencies 5,137 (103 ) 77,330 (3,047 ) 82,467 (3,150 ) Total Mortgage-Backed Securities 535,089 (5,362 ) 87,435 (4,142 ) 622,524 (9,504 ) Total $ 798,234 $ (6,759 ) $ 379,982 $ (7,564 ) $ 1,178,216 $ (14,323 ) Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 284,979 $ (799 ) $ — $ — $ 284,979 $ (799 ) Debt Securities Issued by Corporations 70,674 (1,091 ) 15,434 (571 ) 86,108 (1,662 ) Mortgage-Backed Securities: Residential - Government Agencies 828,303 (13,970 ) 218,914 (7,910 ) 1,047,217 (21,880 ) Residential - U.S. Government-Sponsored Enterprises 614,453 (9,516 ) — — 614,453 (9,516 ) Commercial - Government Agencies 84,783 (1,774 ) 15,358 (54 ) 100,141 (1,828 ) Total Mortgage-Backed Securities 1,527,539 (25,260 ) 234,272 (7,964 ) 1,761,811 (33,224 ) Total $ 1,883,192 $ (27,150 ) $ 249,706 $ (8,535 ) $ 2,132,898 $ (35,685 ) December 31, 2016 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 143,715 $ (562 ) $ 89,211 $ (732 ) $ 232,926 $ (1,294 ) Debt Securities Issued by States and Political Subdivisions 211,188 (1,873 ) 6,725 (14 ) 217,913 (1,887 ) Debt Securities Issued by Corporations 67,332 (714 ) 196,838 (3,156 ) 264,170 (3,870 ) Mortgage-Backed Securities: Residential - Government Agencies 38,355 (89 ) 11,185 (1,056 ) 49,540 (1,145 ) Residential - U.S. Government-Sponsored Enterprises 397,385 (5,218 ) — — 397,385 (5,218 ) Commercial - Government Agencies 5,097 (164 ) 80,420 (3,863 ) 85,517 (4,027 ) Total Mortgage-Backed Securities 440,837 (5,471 ) 91,605 (4,919 ) 532,442 (10,390 ) Total $ 863,072 $ (8,620 ) $ 384,379 $ (8,821 ) $ 1,247,451 $ (17,441 ) Held-to-Maturity: Debt Securities Issued by the U.S. Treasury $ 169,926 $ (771 ) $ — $ — $ 169,926 $ (771 ) Debt Securities Issued by Corporations 69,601 (971 ) 15,933 (557 ) 85,534 (1,528 ) Mortgage-Backed Securities: Residential - Government Agencies 835,227 (15,313 ) 231,377 (8,548 ) 1,066,604 (23,861 ) Residential - U.S. Government-Sponsored Enterprises 693,047 (10,919 ) — — 693,047 (10,919 ) Commercial - Government Agencies 87,586 (2,597 ) 18,653 (68 ) 106,239 (2,665 ) Total Mortgage-Backed Securities 1,615,860 (28,829 ) 250,030 (8,616 ) 1,865,890 (37,445 ) Total $ 1,855,387 $ (30,571 ) $ 265,963 $ (9,173 ) $ 2,121,350 $ (39,744 )
Schedule of interest income from taxable and non-taxable investment securities	Interest income from taxable and non-taxable investment securities for the three months ended March 31, 2017 and 2016 were as follows: Three Months Ended (dollars in thousands) 2017 2016 Taxable $ 25,767 $ 25,987 Non-Taxable 5,023 5,218 Total Interest Income from Investment Securities $ 30,790 $ 31,205
Schedule of carrying value of company's Federal Home Loan Bank and Federal Reserve Bank	As of March 31, 2017 and December 31, 2016 , the carrying value of the Company’s Federal Home Loan Bank of Des Moines stock and Federal Reserve Bank stock was as follows: (dollars in thousands) March 31, December 31, Federal Home Loan Bank Stock $ 20,000 $ 20,000 Federal Reserve Bank Stock 20,167 20,063 Total $ 40,167 $ 40,063

Loans and Leases and the Allo24

Loans and Leases and the Allowance for Loan and Lease Losses (Tables)	3 Months Ended
	Mar. 31, 2017
Loans and Leases and Allowance for Loan and Lease Losses [Abstract]
Schedule of Loan and Lease Portfolio	The Company’s loan and lease portfolio was comprised of the following as of March 31, 2017 and December 31, 2016 : (dollars in thousands) March 31, December 31, Commercial Commercial and Industrial $ 1,250,006 $ 1,249,791 Commercial Mortgage 1,909,064 1,889,551 Construction 262,660 270,018 Lease Financing 208,765 208,332 Total Commercial 3,630,495 3,617,692 Consumer Residential Mortgage 3,224,206 3,163,073 Home Equity 1,411,489 1,334,163 Automobile 468,078 454,333 Other 1 379,541 380,524 Total Consumer 5,483,314 5,332,093 Total Loans and Leases $ 9,113,809 $ 8,949,785 1 Comprised of other revolving credit, installment, and lease financing.
Schedule of Portfolio Segment and Balance in Allowance Disaggregated on the Basis of Impairment Measurement Method	The following presents by portfolio segment, the activity in the Allowance for the three months ended March 31, 2017 and 2016 . The following also presents by portfolio segment, the balance in the Allowance disaggregated on the basis of the Company’s impairment measurement method and the related recorded investment in loans and leases as of March 31, 2017 and 2016 . (dollars in thousands) Commercial Consumer Total Three Months Ended March 31, 2017 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 65,680 $ 38,593 $ 104,273 Loans and Leases Charged-Off (174 ) (5,530 ) (5,704 ) Recoveries on Loans and Leases Previously Charged-Off 336 1,759 2,095 Net Loans and Leases Recovered (Charged-Off) 162 (3,771 ) (3,609 ) Provision for Credit Losses 1,051 3,349 4,400 Balance at End of Period $ 66,893 $ 38,171 $ 105,064 As of March 31, 2017 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 38 $ 3,912 $ 3,950 Collectively Evaluated for Impairment 66,855 34,259 101,114 Total $ 66,893 $ 38,171 $ 105,064 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 20,902 $ 39,429 $ 60,331 Collectively Evaluated for Impairment 3,609,593 5,443,885 9,053,478 Total $ 3,630,495 $ 5,483,314 $ 9,113,809 Three Months Ended March 31, 2016 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 60,714 $ 42,166 $ 102,880 Loans and Leases Charged-Off (257 ) (4,630 ) (4,887 ) Recoveries on Loans and Leases Previously Charged-Off 6,905 1,779 8,684 Net Loans and Leases Recovered (Charged-Off) 6,648 (2,851 ) 3,797 Provision for Credit Losses (5,552 ) 3,552 (2,000 ) Balance at End of Period $ 61,810 $ 42,867 $ 104,677 As of March 31, 2016 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 157 $ 3,406 $ 3,563 Collectively Evaluated for Impairment 61,653 39,461 101,114 Total $ 61,810 $ 42,867 $ 104,677 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 22,986 $ 39,028 $ 62,014 Collectively Evaluated for Impairment 3,233,267 4,770,329 8,003,596 Total $ 3,256,253 $ 4,809,357 $ 8,065,610
Schedule of Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator	The following presents by class and by credit quality indicator, the recorded investment in the Company’s loans and leases as of March 31, 2017 and December 31, 2016 . March 31, 2017 (dollars in thousands) Commercial and Industrial Commercial Mortgage Construction Lease Financing Total Commercial Pass $ 1,204,150 $ 1,811,871 $ 256,962 $ 208,253 $ 3,481,236 Special Mention 18,915 73,225 4,209 4 96,353 Classified 26,941 23,968 1,489 508 52,906 Total $ 1,250,006 $ 1,909,064 $ 262,660 $ 208,765 $ 3,630,495 (dollars in thousands) Residential Mortgage Home Equity Automobile Other 1 Total Consumer Pass $ 3,212,370 $ 1,404,974 $ 467,405 $ 378,785 $ 5,463,534 Special Mention — 2,464 — — 2,464 Classified 11,836 4,051 673 756 17,316 Total $ 3,224,206 $ 1,411,489 $ 468,078 $ 379,541 $ 5,483,314 Total Recorded Investment in Loans and Leases $ 9,113,809 December 31, 2016 (dollars in thousands) Commercial and Industrial Commercial Mortgage Construction Lease Financing Total Commercial Pass $ 1,203,025 $ 1,792,119 $ 264,287 $ 207,386 $ 3,466,817 Special Mention 20,253 66,734 4,218 5 91,210 Classified 26,513 30,698 1,513 941 59,665 Total $ 1,249,791 $ 1,889,551 $ 270,018 $ 208,332 $ 3,617,692 (dollars in thousands) Residential Mortgage Home Equity Automobile Other 1 Total Consumer Pass $ 3,149,294 $ 1,327,676 $ 453,439 $ 379,793 $ 5,310,202 Special Mention — 2,964 — — 2,964 Classified 13,779 3,523 894 731 18,927 Total $ 3,163,073 $ 1,334,163 $ 454,333 $ 380,524 $ 5,332,093 Total Recorded Investment in Loans and Leases $ 8,949,785 1 Comprised of other revolving credit, installment, and lease financing.
Schedule of Aging Analysis by Class of Loan and Lease Portfolio	The following presents by class, an aging analysis of the Company’s loan and lease portfolio as of March 31, 2017 and December 31, 2016 . (dollars in thousands) 30 - 59 Days Past Due 60 - 89 Days Past Due Past Due 90 Days or More Non-Accrual Total Past Due and Non-Accrual Current Total Loans and Leases Non-Accrual Loans and Leases that are Current 2 As of March 31, 2017 Commercial Commercial and Industrial $ 6,275 $ 161 $ — $ 228 $ 6,664 $ 1,243,342 $ 1,250,006 $ 162 Commercial Mortgage 639 675 — 973 2,287 1,906,777 1,909,064 404 Construction — — — — — 262,660 262,660 — Lease Financing — — — — — 208,765 208,765 — Total Commercial 6,914 836 — 1,201 8,951 3,621,544 3,630,495 566 Consumer Residential Mortgage 3,259 1,169 2,313 11,756 18,497 3,205,709 3,224,206 1,517 Home Equity 2,342 1,012 1,133 3,517 8,004 1,403,485 1,411,489 1,300 Automobile 9,128 1,266 673 — 11,067 457,011 468,078 — Other 1 2,663 1,650 1,738 — 6,051 373,490 379,541 — Total Consumer 17,392 5,097 5,857 15,273 43,619 5,439,695 5,483,314 2,817 Total $ 24,306 $ 5,933 $ 5,857 $ 16,474 $ 52,570 $ 9,061,239 $ 9,113,809 $ 3,383 As of December 31, 2016 Commercial Commercial and Industrial $ 10,698 $ 1,016 $ — $ 151 $ 11,865 $ 1,237,926 $ 1,249,791 $ — Commercial Mortgage 128 17 — 997 1,142 1,888,409 1,889,551 416 Construction — — — — — 270,018 270,018 — Lease Financing — — — — — 208,332 208,332 — Total Commercial 10,826 1,033 — 1,148 13,007 3,604,685 3,617,692 416 Consumer Residential Mortgage 6,491 106 3,127 13,780 23,504 3,139,569 3,163,073 1,628 Home Equity 3,063 2,244 1,457 3,147 9,911 1,324,252 1,334,163 1,015 Automobile 11,692 2,162 894 — 14,748 439,585 454,333 — Other 1 3,200 1,532 1,592 — 6,324 374,200 380,524 — Total Consumer 24,446 6,044 7,070 16,927 54,487 5,277,606 5,332,093 2,643 Total $ 35,272 $ 7,077 $ 7,070 $ 18,075 $ 67,494 $ 8,882,291 $ 8,949,785 $ 3,059 1 Comprised of other revolving credit, installment, and lease financing. 2 Represents non-accrual loans that are not past due 30 days or more; however, full payment of principal and interest is still not expected.
Schedule of Information Related to Impaired Loans	The following presents by class, information related to impaired loans as of March 31, 2017 and December 31, 2016 . (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance for Loan Losses March 31, 2017 Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 9,217 $ 16,179 $ — Commercial Mortgage 9,165 12,665 — Construction 1,489 1,489 — Total Commercial 19,871 30,333 — Total Impaired Loans with No Related Allowance Recorded $ 19,871 $ 30,333 $ — Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 689 $ 689 $ 14 Commercial Mortgage 342 342 24 Total Commercial 1,031 1,031 38 Consumer Residential Mortgage 24,349 29,338 3,325 Home Equity 1,507 1,507 263 Automobile 10,916 10,916 248 Other 1 2,657 2,657 76 Total Consumer 39,429 44,418 3,912 Total Impaired Loans with an Allowance Recorded $ 40,460 $ 45,449 $ 3,950 Impaired Loans: Commercial $ 20,902 $ 31,364 $ 38 Consumer 39,429 44,418 3,912 Total Impaired Loans $ 60,331 $ 75,782 $ 3,950 December 31, 2016 Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 9,556 $ 16,518 $ — Commercial Mortgage 9,373 12,873 — Construction 1,513 1,513 — Total Commercial 20,442 30,904 — Total Impaired Loans with No Related Allowance Recorded $ 20,442 $ 30,904 $ — Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 765 $ 765 $ 24 Commercial Mortgage 365 365 21 Total Commercial 1,130 1,130 45 Consumer Residential Mortgage 25,625 30,615 3,224 Home Equity 1,516 1,516 15 Automobile 9,660 9,660 206 Other 1 2,325 2,325 65 Total Consumer 39,126 44,116 3,510 Total Impaired Loans with an Allowance Recorded $ 40,256 $ 45,246 $ 3,555 Impaired Loans: Commercial $ 21,572 $ 32,034 $ 45 Consumer 39,126 44,116 3,510 Total Impaired Loans $ 60,698 $ 76,150 $ 3,555 1 Comprised of other revolving credit and installment financing.
Schedule of the Average Recorded Investment and Interest Income Recognized on Impaired Loans	The following presents by class, information related to the average recorded investment and interest income recognized on impaired loans for the three months ended March 31, 2017 and 2016 . Three Months Ended Three Months Ended (dollars in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 9,387 $ 81 $ 12,360 $ 106 Commercial Mortgage 9,269 85 10,231 69 Construction 1,501 24 1,593 26 Total Commercial 20,157 190 24,184 201 Total Impaired Loans with No Related Allowance Recorded $ 20,157 $ 190 $ 24,184 $ 201 Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 727 $ 11 $ 1,285 $ 20 Commercial Mortgage 354 4 — — Total Commercial 1,081 15 1,285 20 Consumer Residential Mortgage 24,987 212 28,606 251 Home Equity 1,512 17 1,303 17 Automobile 10,288 169 7,198 122 Other 1 2,491 53 1,781 39 Total Consumer 39,278 451 38,888 429 Total Impaired Loans with an Allowance Recorded $ 40,359 $ 466 $ 40,173 $ 449 Impaired Loans: Commercial $ 21,238 $ 205 $ 25,469 $ 221 Consumer 39,278 451 38,888 429 Total Impaired Loans $ 60,516 $ 656 $ 64,357 $ 650 1 Comprised of other revolving credit and installment financing.
Schedule of Loans Modified in a TDR and TDRs that Defaulted During the Period Within 12 mos of Modification Date	The following presents by class, information related to loans modified in a TDR during the three months ended March 31, 2017 and 2016 . Loans Modified as a TDR for the Loans Modified as a TDR for the Recorded Increase in Recorded Increase in Troubled Debt Restructurings Number of Investment Allowance Number of Investment Allowance (dollars in thousands) Contracts (as of period end) 1 (as of period end) Contracts (as of period end) 1 (as of period end) Commercial Commercial and Industrial 5 $ 3,858 $ 1 17 $ 2,988 $ — Commercial Mortgage 1 404 — — — — Total Commercial 6 4,262 1 17 2,988 — Consumer Residential Mortgage 1 98 — 3 1,166 197 Home Equity — — — 1 478 6 Automobile 113 2,303 52 53 1,123 24 Other 2 90 643 18 62 450 13 Total Consumer 204 3,044 70 119 3,217 240 Total 210 $ 7,306 $ 71 136 $ 6,205 $ 240 1 The period end balances reflect all paydowns and charge-offs since the modification date. TDRs fully paid-off, charged-off, or foreclosed upon by period end are not included. 2 Comprised of other revolving credit and installment financing. The following presents by class, all loans modified in a TDR that defaulted during the three months ended March 31, 2017 and 2016 , and within twelve months of their modification date. A TDR is considered to be in default once it becomes 60 days or more past due following a modification. Three Months Ended Three Months Ended TDRs that Defaulted During the Period, Recorded Recorded Within Twelve Months of their Modification Date Number of Investment Number of Investment (dollars in thousands) Contracts (as of period end) 1 Contracts (as of period end) 1 Commercial Commercial and Industrial 2 $ 148 — $ — Commercial Mortgage 1 404 — — Total Commercial 3 552 — — Consumer Residential Mortgage — — 2 1,031 Home Equity — — 1 165 Automobile 11 224 5 116 Other 2 27 199 18 111 Total Consumer 38 423 26 1,423 Total 41 $ 975 26 $ 1,423 1 The period end balances reflect all paydowns and charge-offs since the modification date. TDRs fully paid-off, charged-off, or foreclosed upon by period end are not included. 2 Comprised of other revolving credit and installment financing.

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2017
Transfers and Servicing of Financial Assets [Abstract]
Analysis of mortgage servicing rights accounted for under the fair value measurement method	For the three months ended March 31, 2017 and 2016 , the change in the carrying value of the Company’s mortgage servicing rights accounted for under the fair value measurement method was as follows: Three Months Ended (dollars in thousands) 2017 2016 Balance at Beginning of Period $ 1,655 $ 1,970 Change in Fair Value: Due to Change in Valuation Assumptions 1 — — Due to Payoffs (69 ) (60 ) Total Changes in Fair Value of Mortgage Servicing Rights (69 ) (60 ) Balance at End of Period $ 1,586 $ 1,910 1 Primarily represents changes in discount rates and loan repayment rate assumptions, mostly due to changes in interest rates.
Analysis of mortgage servicing rights accounted for under the amortization method	For the three months ended March 31, 2017 and 2016 , the change in the carrying value of the Company’s mortgage servicing rights accounted for under the amortization method, net of valuation allowance, was as follows: Three Months Ended (dollars in thousands) 2017 2016 Balance at Beginning of Period $ 22,008 $ 21,032 Servicing Rights that Resulted From Asset Transfers 1,315 441 Amortization (618 ) (635 ) Valuation Allowance Provision — (85 ) Balance at End of Period $ 22,705 $ 20,753 Valuation Allowance: Balance at Beginning of Period $ — $ (21 ) Valuation Allowance Provision — (85 ) Balance at End of Period $ — $ (106 ) Fair Value of Mortgage Servicing Rights Accounted for Under the Amortization Method Beginning of Period $ 25,148 $ 24,804 End of Period $ 25,946 $ 20,841
Schedule of key data and assumptions used in estimating the fair value of mortgage servicing rights	The key data and assumptions used in estimating the fair value of the Company’s mortgage servicing rights as of March 31, 2017 and December 31, 2016 were as follows: March 31, December 31, 2016 Weighted-Average Constant Prepayment Rate 1 8.07 % 8.13 % Weighted-Average Life (in years) 7.46 7.43 Weighted-Average Note Rate 4.08 % 4.10 % Weighted-Average Discount Rate 2 9.00 % 9.33 % 1 Represents annualized loan repayment rate assumption. 2 Derived from multiple interest rate scenarios that incorporate a spread to a market yield curve and market volatilities.
Schedule of sensitivity analysis of the fair value of mortgage servicing rights	A sensitivity analysis of the Company’s fair value of mortgage servicing rights to changes in certain key assumptions as of March 31, 2017 and December 31, 2016 is presented in the following table. (dollars in thousands) March 31, December 31, Constant Prepayment Rate Decrease in fair value from 25 basis points (“bps”) adverse change $ (328 ) $ (321 ) Decrease in fair value from 50 bps adverse change (650 ) (636 ) Discount Rate Decrease in fair value from 25 bps adverse change (296 ) (288 ) Decrease in fair value from 50 bps adverse change (586 ) (570 )

Low Income Housing Tax Credit26

Low Income Housing Tax Credit Partnerships (Tables)	3 Months Ended
	Mar. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	As of March 31, 2017 , the expected payments for unfunded affordable housing commitments were as follows: (dollars in thousands) Amount 2017 $ 6,260 2018 8,526 2019 5,947 2020 27 2021 9 Thereafter 382 Total Unfunded Commitments $ 21,151 The following table presents tax credits and other tax benefits recognized and amortization expense related to affordable housing for the three months ended March 31, 2017 and 2016 . Three Months Ended (dollars in thousands) 2017 2016 Effective Yield Method Tax credits and other tax benefits recognized $ 3,430 $ 3,516 Amortization Expense in Provision for Income Taxes 2,161 2,174 Proportional Amortization Method Tax credits and other tax benefits recognized $ 320 $ 259 Amortization Expense in Provision for Income Taxes 253 200

Balance Sheet Offsetting (Table

Balance Sheet Offsetting (Tables)	3 Months Ended
	Mar. 31, 2017
Offsetting [Abstract]
Schedule of Repurchase Agreements - by maturity date and collateral type	The following table presents the remaining contractual maturities of the Company’s repurchase agreements as of March 31, 2017 and December 31, 2016 , disaggregated by the class of collateral pledged. Remaining Contractual Maturity of Repurchase Agreements (dollars in thousands) Up to 91-365 days 1-3 Years After Total March 31, 2017 Class of Collateral Pledged: Debt Securities Issued by the U.S. Treasury and Government Agencies $ — $ — $ 200,000 $ 110,449 $ 310,449 Debt Securities Issued by States and Political Subdivisions 900 2,392 2,000 — 5,292 Mortgage-Backed Securities: Residential - Government Agencies — — — 96,060 96,060 Residential - U.S. Government-Sponsored Enterprises — — — 93,491 93,491 Total $ 900 $ 2,392 $ 202,000 $ 300,000 $ 505,292 December 31, 2016 Class of Collateral Pledged: Debt Securities Issued by the U.S. Treasury and Government Agencies $ — $ — $ 200,000 $ 104,681 $ 304,681 Debt Securities Issued by States and Political Subdivisions 22,050 590 — — 22,640 Mortgage-Backed Securities: Residential - Government Agencies 738 — — 97,281 98,019 Residential - U.S. Government-Sponsored Enterprises — — — 98,038 98,038 Total $ 22,788 $ 590 $ 200,000 $ 300,000 $ 523,378
Schedule of assets and liabilities subject to an enforceable master netting arrangement	The following table presents the assets and liabilities subject to an enforceable master netting arrangement, or repurchase agreements, as of March 31, 2017 and December 31, 2016 . The swap agreements we have with our commercial banking customers are not subject to an enforceable master netting arrangement, and therefore, are excluded from this table. (i) (ii) (iii) = (i)-(ii) (iv) (v) = (iii)-(iv) Gross Amounts Recognized in the Statements of Condition Gross Amounts Offset in the Statements of Condition Net Amounts Presented in the Statements of Condition Gross Amounts Not Offset in the Statements of Condition (dollars in thousands) Netting Adjustments per Master Netting Arrangements Fair Value of Collateral Pledged 1 Net Amount March 31, 2017 Assets: Interest Rate Swap Agreements: Institutional Counterparties $ 5,276 $ — $ 5,276 $ 5,276 $ — $ — Liabilities: Interest Rate Swap Agreements: Institutional Counterparties 5,752 — 5,752 5,276 476 — Repurchase Agreements: Private Institutions 500,000 — 500,000 — 500,000 — Government Entities 5,292 — 5,292 — 5,292 — $ 505,292 $ — $ 505,292 $ — $ 505,292 $ — December 31, 2016 Assets: Interest Rate Swap Agreements: Institutional Counterparties $ 5,094 $ — $ 5,094 $ 5,094 $ — $ — Liabilities: Interest Rate Swap Agreements: Institutional Counterparties 6,489 — 6,489 5,094 500 895 Repurchase Agreements: Private Institutions 500,000 — 500,000 — 500,000 — Government Entities 23,378 — 23,378 — 23,378 — $ 523,378 $ — $ 523,378 $ — $ 523,378 $ — 1 The application of collateral cannot reduce the net amount below zero. Therefore, excess collateral is not reflected in this column. For interest rate swap agreements with institutional counterparties, the fair value of investment securities pledged was $1.0 million and $0.5 million as of March 31, 2017 and December 31, 2016 , respectively. For repurchase agreements with private institutions, the fair value of investment securities pledged was $590.5 million and $599.3 million as of March 31, 2017 and December 31, 2016 , respectively. For repurchase agreements with government entities, the fair value of investment securities pledged was $7.1 million and $28.9 million as of March 31, 2017 and December 31, 2016 , respectively.

Accumulated Other Comprehensi28

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2017
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Components of other comprehensive income	The following table presents the components of other comprehensive income (loss) for the three months ended March 31, 2017 and 2016 : (dollars in thousands) Before Tax Tax Effect Net of Tax Three Months Ended March 31, 2017 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ 7,580 $ 2,991 $ 4,589 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 504 199 305 Net Unrealized Gains (Losses) on Investment Securities 8,084 3,190 4,894 Defined Benefit Plans: Amortization of Net Actuarial Losses (Gains) 323 128 195 Amortization of Prior Service Credit (81 ) (32 ) (49 ) Defined Benefit Plans, Net 242 96 146 Other Comprehensive Income (Loss) $ 8,326 $ 3,286 $ 5,040 Three Months Ended March 31, 2016 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ 13,944 $ 5,505 $ 8,439 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 422 167 255 Net Unrealized Gains (Losses) on Investment Securities 14,366 5,672 8,694 Defined Benefit Plans: Amortization of Net Actuarial Losses (Gains) 314 124 190 Amortization of Prior Service Credit (81 ) (32 ) (49 ) Defined Benefit Plans, Net 233 92 141 Other Comprehensive Income (Loss) $ 14,599 $ 5,764 $ 8,835 1 The amount relates to the amortization/accretion of unrealized net gains and losses related to the Company’s reclassification of available-for-sale investment securities to the held-to-maturity category. The unrealized net gains/losses will be amortized/accreted over the remaining life of the investment securities as an adjustment of yield.
Schedule of accumulated other comprehensive income (loss)	The following table presents the changes in each component of accumulated other comprehensive income (loss), net of tax, for the three months ended March 31, 2017 and 2016 : (dollars in thousands) Investment Securities-Available-for-Sale Investment Securities-Held-to-Maturity Defined Benefit Plans Accumulated Other Comprehensive Income (Loss) Three Months Ended March 31, 2017 Balance at Beginning of Period $ 1,270 $ (6,284 ) $ (28,892 ) $ (33,906 ) Other Comprehensive Income (Loss) Before Reclassifications 4,589 — — 4,589 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) — 305 146 451 Total Other Comprehensive Income (Loss) 4,589 305 146 5,040 Balance at End of Period $ 5,859 $ (5,979 ) $ (28,746 ) $ (28,866 ) Three Months Ended March 31, 2016 Balance at Beginning of Period $ 12,559 $ (7,255 ) $ (28,861 ) $ (23,557 ) Other Comprehensive Income (Loss) Before Reclassifications 8,439 — — 8,439 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) — 255 141 396 Total Other Comprehensive Income (Loss) 8,439 255 141 8,835 Balance at End of Period $ 20,998 $ (7,000 ) $ (28,720 ) $ (14,722 )
Reclassification out of accumulated other comprehensive income	The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss) for the three months ended March 31, 2017 and 2016 : Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Accumulated Other Comprehensive Income (Loss) 1 Affected Line Item in the Statement Where Net Income Is Presented Three Months Ended March 31, (dollars in thousands) 2017 2016 Amortization of Unrealized Holding Gains (Losses) on Investment Securities Held-to-Maturity $ (504 ) $ (422 ) Interest Income 199 167 Provision for Income Tax (305 ) (255 ) Net of Tax Amortization of Defined Benefit Plan Items Prior Service Credit 2 81 81 Net Actuarial Losses 2 (323 ) (314 ) (242 ) (233 ) Total Before Tax 96 92 Provision for Income Tax (146 ) (141 ) Net of Tax Total Reclassifications for the Period $ (451 ) $ (396 ) Net of Tax 1 Amounts in parentheses indicate reductions to net income. 2 These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost and are included in Salaries and Benefits on the consolidated statements of income (see Note 10 Pension Plans and Postretirement Benefit Plan for additional details).

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Reconciliation of the weighted average number of common shares outstanding for computing diluted earnings per share and antidilutive stock options and restricted stock outstanding	The following is a reconciliation of the weighted average number of common shares outstanding for computing diluted earnings per share and antidilutive stock options and restricted stock outstanding for the three months ended March 31, 2017 and 2016 : Three Months Ended 2017 2016 Denominator for Basic Earnings Per Share 42,406,006 42,920,794 Dilutive Effect of Equity Based Awards 343,860 205,732 Denominator for Diluted Earnings Per Share 42,749,866 43,126,526 Antidilutive Stock Options and Restricted Stock Outstanding — 28,224

Business Segments (Tables)

Business Segments (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Selected Business Segment Financial Information	Selected business segment financial information as of and for the three months ended March 31, 2017 and 2016 were as follows: (dollars in thousands) Retail Banking Commercial Banking Investment Services Treasury and Other Consolidated Total Three Months Ended March 31, 2017 Net Interest Income $ 65,158 $ 41,931 $ 6,650 $ (3,867 ) $ 109,872 Provision for Credit Losses 3,801 (188 ) (5 ) 792 4,400 Net Interest Income After Provision for Credit Losses 61,357 42,119 6,655 (4,659 ) 105,472 Noninterest Income 20,925 5,438 14,549 15,004 55,916 Noninterest Expense (52,260 ) (18,355 ) (15,471 ) (2,482 ) (88,568 ) Income Before Provision for Income Taxes 30,022 29,202 5,733 7,863 72,820 Provision for Income Taxes (10,673 ) (10,256 ) (2,121 ) 1,406 (21,644 ) Net Income $ 19,349 $ 18,946 $ 3,612 $ 9,269 $ 51,176 Total Assets as of March 31, 2017 $ 5,438,421 $ 3,577,524 $ 288,178 $ 7,360,092 $ 16,664,215 Three Months Ended March 31, 2016 Net Interest Income $ 58,010 $ 38,348 $ 6,452 $ 214 $ 103,024 Provision for Credit Losses 2,835 (6,626 ) (6 ) 1,797 (2,000 ) Net Interest Income After Provision for Credit Losses 55,175 44,974 6,458 (1,583 ) 105,024 Noninterest Income 20,807 7,600 14,024 13,776 56,207 Noninterest Expense (52,741 ) (17,268 ) (15,427 ) (1,950 ) (87,386 ) Income Before Provision for Income Taxes 23,241 35,306 5,055 10,243 73,845 Provision for Income Taxes (8,227 ) (12,656 ) (1,870 ) (882 ) (23,635 ) Net Income $ 15,014 $ 22,650 $ 3,185 $ 9,361 $ 50,210 Total Assets as of March 31, 2016 $ 4,763,749 $ 3,196,413 $ 284,891 $ 7,409,642 $ 15,654,695

Pension Plans and Postretirem31

Pension Plans and Postretirement Benefit Plan (Tables)	3 Months Ended
	Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]
Schedule of components of net periodic benefit cost	Components of net periodic benefit cost for the Company’s pension plans and the postretirement benefit plan are presented in the following table for the three months ended March 31, 2017 and 2016 . Pension Benefits Postretirement Benefits (dollars in thousands) 2017 2016 2017 2016 Three Months Ended March 31, Service Cost $ — $ — $ 123 $ 137 Interest Cost 1,161 1,209 272 294 Expected Return on Plan Assets (1,238 ) (1,281 ) — — Amortization of: Prior Service Credit — — (81 ) (81 ) Net Actuarial Losses (Gains) 433 389 (110 ) (75 ) Net Periodic Benefit Cost $ 356 $ 317 $ 204 $ 275

Derivative Financial Instrume32

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of the notional amount and fair value of the derivative financial instruments	The notional amount and fair value of the Company’s derivative financial instruments as of March 31, 2017 and December 31, 2016 were as follows: March 31, 2017 December 31, 2016 (dollars in thousands) Notional Amount Fair Value Notional Amount Fair Value Interest Rate Lock Commitments $ 51,258 $ 1,262 $ 55,223 $ 1,067 Forward Commitments 60,427 (302 ) 104,962 847 Interest Rate Swap Agreements Receive Fixed/Pay Variable Swaps 359,072 462 357,441 1,381 Pay Fixed/Receive Variable Swaps 359,072 (476 ) 357,441 (1,395 ) Foreign Exchange Contracts 46,740 339 38,172 (757 )
Derivative financial instruments, their fair values, and balance sheet location	The following table presents the Company’s derivative financial instruments, their fair values, and their location in the consolidated statements of condition as of March 31, 2017 and December 31, 2016 : Derivative Financial Instruments March 31, 2017 December 31, 2016 Not Designated as Hedging Instruments 1 Asset Liability Asset Liability (dollars in thousands) Derivatives Derivatives Derivatives Derivatives Interest Rate Lock Commitments $ 1,262 $ — $ 1,236 $ 169 Forward Commitments 3 305 873 26 Interest Rate Swap Agreements 11,014 11,028 11,569 11,583 Foreign Exchange Contracts 364 25 53 810 Total $ 12,643 $ 11,358 $ 13,731 $ 12,588 1 Asset derivatives are included in other assets and liability derivatives are included in other liabilities in the consolidated statements of condition.
Derivative financial instruments and the amount and location of the net gains or losses recognized in the statements of income	The following table presents the Company’s derivative financial instruments and the amount and location of the net gains or losses recognized in the consolidated statements of income for the three months ended March 31, 2017 and 2016 : Location of Derivative Financial Instruments Net Gains (Losses) Three Months Ended Not Designated as Hedging Instruments Recognized in the March 31, (dollars in thousands) Statements of Income 2017 2016 Interest Rate Lock Commitments Mortgage Banking $ 1,267 $ 986 Forward Commitments Mortgage Banking (424 ) (478 ) Interest Rate Swap Agreements Other Noninterest Income 156 109 Foreign Exchange Contracts Other Noninterest Income 1,050 709 Total $ 2,049 $ 1,326

Commitments, Contingencies, a33

Commitments, Contingencies, and Guarantees (Tables)	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Credit commitments	The Company’s credit commitments as of March 31, 2017 and December 31, 2016 were as follows: (dollars in thousands) March 31, December 31, Unfunded Commitments to Extend Credit $ 2,728,708 $ 2,732,734 Standby Letters of Credit 126,258 112,830 Commercial Letters of Credit 13,511 16,269 Total Credit Commitments $ 2,868,477 $ 2,861,833

Fair Value of Assets and Liab34

Fair Value of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Balances of assets and liabilities measured at fair value on a recurring basis	The table below presents the balances of assets and liabilities measured at fair value on a recurring basis as of March 31, 2017 and December 31, 2016 : Quoted Prices in Active Markets for Identical Assets or Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (dollars in thousands) (Level 1) (Level 2) (Level 3) Total March 31, 2017 Assets: Investment Securities Available-for-Sale Debt Securities Issued by the U.S. Treasury and Government Agencies $ 540 $ 429,284 $ — $ 429,824 Debt Securities Issued by States and Political Subdivisions — 681,954 — 681,954 Debt Securities Issued by Corporations — 264,963 — 264,963 Mortgage-Backed Securities: Residential - Government Agencies — 253,291 — 253,291 Residential - U.S. Government-Sponsored Enterprises — 629,071 — 629,071 Commercial - Government Agencies — 82,467 — 82,467 Total Mortgage-Backed Securities — 964,829 — 964,829 Total Investment Securities Available-for-Sale 540 2,341,030 — 2,341,570 Loans Held for Sale — 20,899 — 20,899 Mortgage Servicing Rights — — 1,586 1,586 Other Assets 22,004 — — 22,004 Derivatives 1 — 367 12,276 12,643 Total Assets Measured at Fair Value on a $ 22,544 $ 2,362,296 $ 13,862 $ 2,398,702 Liabilities: Derivatives 1 $ — $ 330 $ 11,028 $ 11,358 Total Liabilities Measured at Fair Value on a $ — $ 330 $ 11,028 $ 11,358 December 31, 2016 Assets: Investment Securities Available-for-Sale Debt Securities Issued by the U.S. Treasury and Government Agencies $ 539 $ 408,176 $ — $ 408,715 Debt Securities Issued by States and Political Subdivisions — 671,799 — 671,799 Debt Securities Issued by Corporations — 269,179 — 269,179 Mortgage-Backed Securities: Residential - Government Agencies — 243,844 — 243,844 Residential - U.S. Government-Sponsored Enterprises — 506,987 — 506,987 Commercial - Government Agencies — 85,517 — 85,517 Total Mortgage-Backed Securities — 836,348 — 836,348 Total Investment Securities Available-for-Sale 539 2,185,502 — 2,186,041 Loans Held for Sale — 62,499 — 62,499 Mortgage Servicing Rights — — 1,655 1,655 Other Assets 21,952 — — 21,952 Derivatives 1 — 926 12,805 13,731 Total Assets Measured at Fair Value on a $ 22,491 $ 2,248,927 $ 14,460 $ 2,285,878 Liabilities: Derivatives 1 $ — $ 836 $ 11,752 $ 12,588 Total Liabilities Measured at Fair Value on a $ — $ 836 $ 11,752 $ 12,588 1 The fair value of each class of derivatives is shown in Note 11 Derivative Financial Instruments .
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis	For the three months ended March 31, 2017 and 2016 , the changes in Level 3 assets and liabilities measured at fair value on a recurring basis were as follows: (dollars in thousands) Mortgage Servicing Rights 1 Net Derivative Assets and Liabilities 2 Three Months Ended March 31, 2017 Balance as of January 1, 2017 $ 1,655 $ 1,053 Realized and Unrealized Net Gains (Losses): Included in Net Income (69 ) 1,267 Transfers to Loans Held for Sale — (1,072 ) Balance as of March 31, 2017 $ 1,586 $ 1,248 Total Unrealized Net Gains (Losses) Included in Net Income $ — $ 1,248 Three Months Ended March 31, 2016 Balance as of January 1, 2016 $ 1,970 $ 240 Realized and Unrealized Net Gains (Losses): Included in Net Income (60 ) 972 Transfers to Loans Held for Sale — (841 ) Balance as of March 31, 2016 $ 1,910 $ 371 Total Unrealized Net Gains (Losses) Included in Net Income $ — $ 371 1 Realized and unrealized gains and losses related to mortgage servicing rights are reported as a component of mortgage banking income in the Company’s consolidated statements of income. 2 Realized and unrealized gains and losses related to interest rate lock commitments are reported as a component of mortgage banking income in the Company’s consolidated statements of income. Realized and unrealized gains and losses related to interest rate swap agreements are reported as a component of other noninterest income in the Company’s consolidated statements of income.
Summary of the significant unobservable inputs	For Level 3 assets and liabilities measured at fair value on a recurring or nonrecurring basis as of March 31, 2017 and December 31, 2016 , the significant unobservable inputs used in the fair value measurements were as follows: Significant Unobservable Inputs (weighted-average) Fair Value (dollars in thousands) Valuation Technique Description Mar. 31, Dec. 31, Mar. 31, Dec. 31, Mortgage Servicing Rights Discounted Cash Flow Constant Prepayment Rate 1 8.07 % 8.13 % $ 27,532 $ 26,803 Discount Rate 2 9.00 % 9.33 % Net Derivative Assets and Liabilities: Interest Rate Lock Commitments Pricing Model Closing Ratio 91.47 % 92.26 % $ 1,262 $ 1,067 Interest Rate Swap Agreements Discounted Cash Flow Credit Factor 0.12 % 0.13 % $ (14 ) $ (14 ) 1 Represents annualized loan repayment rate assumption. 2 Derived from multiple interest rate scenarios that incorporate a spread to a market yield curve and market volatilities.
Assets and liabilities measured at fair value on a nonrecurring basis	The following table represents the assets measured at fair value on a nonrecurring basis as of March 31, 2017 . There were no assets measured at fair value on a nonrecurring basis as of December 31, 2016 . (dollars in thousands) Fair Value Hierarchy Net Carrying Amount Valuation Allowance March 31, 2017 Foreclosed Real Estate Level 3 $ 2,529 $ 19
Schedule of difference between the aggregate fair value and the aggregate unpaid principal balance of the Company's residential mortgage loans held for sale	The following table reflects the difference between the aggregate fair value and the aggregate unpaid principal balance of the Company’s residential mortgage loans held for sale as of March 31, 2017 and December 31, 2016 . (dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Aggregate Fair Value Unpaid Principal March 31, 2017 Loans Held for Sale $ 20,899 $ 20,419 $ 480 December 31, 2016 Loans Held for Sale $ 62,499 $ 61,782 $ 717
Schedule of carrying amount, fair value, and fair value hierarchy of financial instruments	The following presents the carrying amount, fair value, and placement in the fair value hierarchy of the Company’s financial instruments not recorded at fair value on a recurring basis as of March 31, 2017 and December 31, 2016 . This table excludes financial instruments for which the carrying amount approximates fair value. For short-term financial assets such as cash and cash equivalents, the carrying amount is a reasonable estimate of fair value due to the relatively short time between the origination of the instrument and its expected realization. For non-marketable equity securities such as Federal Home Loan Bank and Federal Reserve Bank stock, the carrying amount is a reasonable estimate of fair value as these securities can only be redeemed or sold at their par value and only to the respective issuing government supported institution or to another member institution. For financial liabilities such as noninterest-bearing demand, interest-bearing demand, and savings deposits, the carrying amount is a reasonable estimate of fair value due to these products having no stated maturity. Fair Value Measurements Carrying Quoted Prices in Active Markets for Identical Assets or Liabilities Significant Other Observable Inputs Significant Unobservable Inputs (dollars in thousands) Amount Fair Value (Level 1) (Level 2) (Level 3) March 31, 2017 Financial Instruments - Assets Investment Securities Held-to-Maturity $ 3,848,088 $ 3,848,609 $ 530,513 $ 3,318,096 $ — Loans 1 8,742,348 8,880,551 — — 8,880,551 Financial Instruments - Liabilities Time Deposits 1,400,097 1,394,757 — 1,394,757 — Securities Sold Under Agreements to Repurchase 505,292 505,265 — 505,265 — Other Debt 2 257,153 256,312 — 256,312 — December 31, 2016 Financial Instruments - Assets Investment Securities Held-to-Maturity $ 3,832,997 $ 3,827,527 $ 530,940 $ 3,296,587 $ — Loans 1 8,583,726 8,743,191 — — 8,743,191 Financial Instruments - Liabilities Time Deposits 1,217,707 1,213,705 — 1,213,705 — Securities Sold Under Agreements to Repurchase 523,378 523,374 — 523,374 — Other Debt 2 257,153 256,718 — 256,718 — 1 Net of unearned income and the Allowance. 2 Excludes capitalized lease obligations.

Summary of Significant Accoun35

Summary of Significant Accounting Policies (Variable Interest Entities) (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Unfunded commitments to fund low-income housing partnerships	$ 21,151
Other Assets
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	80,900	$ 78,900
Other Liabilities
Variable Interest Entity [Line Items]
Unfunded commitments to fund low-income housing partnerships	$ 21,200	$ 16,200
Low-income housing partnerships
Variable Interest Entity [Line Items]
Period over which tax credits or benefits are generally recognized (in years)	10 years
Solar energy partnerships
Variable Interest Entity [Line Items]
Period over which tax credits or benefits are generally recognized (in years)	6 years

Summary of Significant Accoun36

Summary of Significant Accounting Policies (Correction of an Immaterial Error to the Financial Statements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease in loans held-for-sale	$ (73,983)	$ (43,511)
Decrease in proceeds from sales of loans held for sale	(68,884)	(32,545)
Decrease in net change in other assets and liabilities	(19,942)	4,826
Decrease in net cash provided by operating activities	41,679	41,619
Loans and Leases	9,113,809	8,065,610	$ 8,949,785
Proceeds from Sales of Loans	79,169	19,055
Increase to net cash used in investing activities	(284,536)	(135,554)
Decrease in transfers from loans to loans held for sale	30,477	$ 18,757
Adjustment For Error Correction, YTD 2016 | Immaterial Error From Amounts Incorrectly Reported In Prior Period
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease in loans held-for-sale	18,400
Decrease in proceeds from sales of loans held for sale	19,100
Decrease in net change in other assets and liabilities	100
Decrease in net cash provided by operating activities	(800)
Loans and Leases	18,300
Proceeds from Sales of Loans	19,100
Increase to net cash used in investing activities	800
Decrease in transfers from loans to loans held for sale	$ (1,400)

Investment Securities (Amortiza

Investment Securities (Amortization Cost, Gross Unrealized Gains/Losses, and Fair Value) (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Available-for-Sale:
Available-for-Sale: Amortized Cost	$ 2,331,892	$ 2,183,943
Available-for-Sale: Gross Unrealized Gains	24,001	19,539
Available-for-Sale: Gross Unrealized Losses	(14,323)	(17,441)
Available-for-Sale	2,341,570	2,186,041
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	3,848,088	3,832,997
Held-to-Maturity: Gross Unrealized Gains	36,206	34,274
Held-to-Maturity: Gross Unrealized Losses	(35,685)	(39,744)
Held-to-Maturity: Fair Value	3,848,609	3,827,527
Debt Securities Issued by the U.S. Treasury and Government Agencies
Available-for-Sale:
Available-for-Sale: Amortized Cost	428,615	407,478
Available-for-Sale: Gross Unrealized Gains	2,532	2,531
Available-for-Sale: Gross Unrealized Losses	(1,323)	(1,294)
Available-for-Sale	429,824	408,715
Debt Securities Issued by States and Political Subdivisions
Available-for-Sale:
Available-for-Sale: Amortized Cost	666,257	662,231
Available-for-Sale: Gross Unrealized Gains	15,988	11,455
Available-for-Sale: Gross Unrealized Losses	(291)	(1,887)
Available-for-Sale	681,954	671,799
Debt Securities Issued by Corporations
Available-for-Sale:
Available-for-Sale: Amortized Cost	268,031	273,044
Available-for-Sale: Gross Unrealized Gains	137	5
Available-for-Sale: Gross Unrealized Losses	(3,205)	(3,870)
Available-for-Sale	264,963	269,179
Residential - Government Agencies
Available-for-Sale:
Available-for-Sale: Amortized Cost	250,178	240,412
Available-for-Sale: Gross Unrealized Gains	4,280	4,577
Available-for-Sale: Gross Unrealized Losses	(1,167)	(1,145)
Available-for-Sale	253,291	243,844
Residential - U.S. Government-Sponsored Enterprises
Available-for-Sale:
Available-for-Sale: Amortized Cost	633,194	511,234
Available-for-Sale: Gross Unrealized Gains	1,064	971
Available-for-Sale: Gross Unrealized Losses	(5,187)	(5,218)
Available-for-Sale	629,071	506,987
Commercial - Government Agencies
Available-for-Sale:
Available-for-Sale: Amortized Cost	85,617	89,544
Available-for-Sale: Gross Unrealized Gains	0	0
Available-for-Sale: Gross Unrealized Losses	(3,150)	(4,027)
Available-for-Sale	82,467	85,517
Mortgage-Backed Securities
Available-for-Sale:
Available-for-Sale: Amortized Cost	968,989	841,190
Available-for-Sale: Gross Unrealized Gains	5,344	5,548
Available-for-Sale: Gross Unrealized Losses	(9,504)	(10,390)
Available-for-Sale	964,829	836,348
Debt Securities Issued by the U.S. Treasury and Government Agencies
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	530,131	530,149
Held-to-Maturity: Gross Unrealized Gains	1,181	1,562
Held-to-Maturity: Gross Unrealized Losses	(799)	(771)
Held-to-Maturity: Fair Value	530,513	530,940
Debt Securities Issued by States and Political Subdivisions
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	241,358	242,295
Held-to-Maturity: Gross Unrealized Gains	13,360	9,991
Held-to-Maturity: Gross Unrealized Losses	0	0
Held-to-Maturity: Fair Value	254,718	252,286
Debt Securities Issued by Corporations
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	131,652	135,620
Held-to-Maturity: Gross Unrealized Gains	286	416
Held-to-Maturity: Gross Unrealized Losses	(1,662)	(1,528)
Held-to-Maturity: Fair Value	130,276	134,508
Residential - Government Agencies
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	1,950,475	1,940,076
Held-to-Maturity: Gross Unrealized Gains	18,543	20,567
Held-to-Maturity: Gross Unrealized Losses	(21,880)	(23,861)
Held-to-Maturity: Fair Value	1,947,138	1,936,782
Residential - U.S. Government-Sponsored Enterprises
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	770,674	752,768
Held-to-Maturity: Gross Unrealized Gains	1,142	798
Held-to-Maturity: Gross Unrealized Losses	(9,516)	(10,919)
Held-to-Maturity: Fair Value	762,300	742,647
Commercial - Government Agencies
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	223,798	232,089
Held-to-Maturity: Gross Unrealized Gains	1,694	940
Held-to-Maturity: Gross Unrealized Losses	(1,828)	(2,665)
Held-to-Maturity: Fair Value	223,664	230,364
Mortgage-Backed Securities
Held-to-maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	2,944,947	2,924,933
Held-to-Maturity: Gross Unrealized Gains	21,379	22,305
Held-to-Maturity: Gross Unrealized Losses	(33,224)	(37,445)
Held-to-Maturity: Fair Value	$ 2,933,102	$ 2,909,793

Investment Securities (Contract

Investment Securities (Contractual Maturities and Narrative) (Details 2) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis Rolling Maturity[Abstract]
Due in One Year or Less	$ 55,362
Due After One Year Through Five Years	587,856
Due After Five Years Through Ten Years	249,876
Due After Ten Years	41,743
Amortized Cost, Total	934,837
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Due in One Year or Less	55,427
Due After One Year Through Five Years	591,262
Due After Five Years Through Ten Years	256,495
Due After Ten Years	44,273
Fair Value, Total	947,457
Available-for-Sale: Amortized Cost	2,331,892	$ 2,183,943
Available-for-Sale: Fair Value	2,341,570	2,186,041
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Rolling Maturities (Abstract]
Due in One Year or Less	194,986
Due After One Year Through Five Years	406,361
Due After Five Years Through Ten Years	252,762
Due After Ten Years	49,032
Amortized Cost, Total	903,141
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Due in One Year or Less	194,935
Due After One Year Through Five Years	409,325
Due After Five Years Through Ten Years	259,221
Due After Ten Years	52,026
Fair Value, Total	915,507
Held-to-Maturity: Amortized Cost	3,848,088
Held-to-Maturity: Fair Value	3,848,609	3,827,527
Carrying value of investment securities which were pledged to secure deposits of gov't entities and repos	2,500,000	2,400,000
Debt Securities Issued by Government Agencies
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Amortized Cost	428,066
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	429,284
Residential - Government Agencies
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Amortized Cost	250,178
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	253,291
Available-for-Sale: Amortized Cost	250,178	240,412
Available-for-Sale: Fair Value	253,291	243,844
Residential - U.S. Government-Sponsored Enterprises
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Amortized Cost	633,194
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	629,071
Available-for-Sale: Amortized Cost	633,194	511,234
Available-for-Sale: Fair Value	629,071	506,987
Commercial - Government Agencies
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Amortized Cost	85,617
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	82,467
Available-for-Sale: Amortized Cost	85,617	89,544
Available-for-Sale: Fair Value	82,467	85,517
Mortgage-Backed Securities
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Amortized Cost	968,989
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed Securities: Fair Value	964,829
Available-for-Sale: Amortized Cost	968,989	841,190
Available-for-Sale: Fair Value	964,829	836,348
Residential - Government Agencies
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	1,950,475
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	1,947,138
Held-to-Maturity: Fair Value	1,947,138	1,936,782
Residential - U.S. Government-Sponsored Enterprises
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	770,674
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	762,300
Held-to-Maturity: Fair Value	762,300	742,647
Commercial - Government Agencies
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	223,798
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	223,664
Held-to-Maturity: Fair Value	223,664	230,364
Mortgage-Backed Securities
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Held-to-Maturity: Mortgage-Backed Securities: Amortized Cost	2,944,947
Held-to-Maturity: Mortgage-Backed Securities: Fair Value	2,933,102
Held-to-Maturity: Fair Value	$ 2,933,102	$ 2,909,793

Investment Securities (Gains an

Investment Securities (Gains and Losses on Sales) (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Gross Gains on Sales of Investment Securities	$ 12,467	$ 11,355
Gross Losses on Sales of Investment Securities	(334)	(175)
Net Gains (Losses) on Sales of Investment Securities	$ 12,133	$ 11,180

Investment Securities (Unrealiz

Investment Securities (Unrealized Position - Less than 12 Mos., 12 Mos. or Longer) (Details 4) $ in Thousands	Mar. 31, 2017USD ($)security	Dec. 31, 2016USD ($)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	$ 798,234	$ 863,072
Less Than 12 Months, Gross Unrealized Losses	(6,759)	(8,620)
12 Months or Longer, Fair Value	379,982	384,379
12 Months or Longer, Gross Unrealized Losses	(7,564)	(8,821)
Total Fair Value	1,178,216	1,247,451
Total Gross Unrealized Losses	(14,323)	(17,441)
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	1,883,192	1,855,387
Less Than 12 Months, Gross Unrealized Losses	(27,150)	(30,571)
12 Months or Longer, Fair Value	249,706	265,963
12 Months or Longer, Gross Unrealized Losses	(8,535)	(9,173)
Total Fair Value	2,132,898	2,121,350
Total Gross Unrealized Losses	$ (35,685)	(39,744)
Number of Investment Securities in an Unrealized Loss Position | security	295
Debt Securities Issued by the U.S. Treasury and Government Agencies
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	$ 117,681	143,715
Less Than 12 Months, Gross Unrealized Losses	(404)	(562)
12 Months or Longer, Fair Value	130,056	89,211
12 Months or Longer, Gross Unrealized Losses	(919)	(732)
Total Fair Value	247,737	232,926
Total Gross Unrealized Losses	(1,323)	(1,294)
Debt Securities Issued by States and Political Subdivisions
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	78,130	211,188
Less Than 12 Months, Gross Unrealized Losses	(291)	(1,873)
12 Months or Longer, Fair Value	0	6,725
12 Months or Longer, Gross Unrealized Losses	0	(14)
Total Fair Value	78,130	217,913
Total Gross Unrealized Losses	(291)	(1,887)
Debt Securities Issued by Corporations
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	67,334	67,332
Less Than 12 Months, Gross Unrealized Losses	(702)	(714)
12 Months or Longer, Fair Value	162,491	196,838
12 Months or Longer, Gross Unrealized Losses	(2,503)	(3,156)
Total Fair Value	229,825	264,170
Total Gross Unrealized Losses	(3,205)	(3,870)
Residential - Government Agencies
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	34,368	38,355
Less Than 12 Months, Gross Unrealized Losses	(72)	(89)
12 Months or Longer, Fair Value	10,105	11,185
12 Months or Longer, Gross Unrealized Losses	(1,095)	(1,056)
Total Fair Value	44,473	49,540
Total Gross Unrealized Losses	(1,167)	(1,145)
Residential - U.S. Government-Sponsored Enterprises
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	495,584	397,385
Less Than 12 Months, Gross Unrealized Losses	(5,187)	(5,218)
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total Fair Value	495,584	397,385
Total Gross Unrealized Losses	(5,187)	(5,218)
Commercial - Government Agencies
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	5,137	5,097
Less Than 12 Months, Gross Unrealized Losses	(103)	(164)
12 Months or Longer, Fair Value	77,330	80,420
12 Months or Longer, Gross Unrealized Losses	(3,047)	(3,863)
Total Fair Value	82,467	85,517
Total Gross Unrealized Losses	(3,150)	(4,027)
Mortgage-Backed Securities
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	535,089	440,837
Less Than 12 Months, Gross Unrealized Losses	(5,362)	(5,471)
12 Months or Longer, Fair Value	87,435	91,605
12 Months or Longer, Gross Unrealized Losses	(4,142)	(4,919)
Total Fair Value	622,524	532,442
Total Gross Unrealized Losses	(9,504)	(10,390)
Debt Securities Issued by the U.S. Treasury and Government Agencies
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	284,979	169,926
Less Than 12 Months, Gross Unrealized Losses	(799)	(771)
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total Fair Value	284,979	169,926
Total Gross Unrealized Losses	(799)	(771)
Debt Securities Issued by Corporations
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	70,674	69,601
Less Than 12 Months, Gross Unrealized Losses	(1,091)	(971)
12 Months or Longer, Fair Value	15,434	15,933
12 Months or Longer, Gross Unrealized Losses	(571)	(557)
Total Fair Value	86,108	85,534
Total Gross Unrealized Losses	(1,662)	(1,528)
Residential - Government Agencies
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	828,303	835,227
Less Than 12 Months, Gross Unrealized Losses	(13,970)	(15,313)
12 Months or Longer, Fair Value	218,914	231,377
12 Months or Longer, Gross Unrealized Losses	(7,910)	(8,548)
Total Fair Value	1,047,217	1,066,604
Total Gross Unrealized Losses	(21,880)	(23,861)
Residential - U.S. Government-Sponsored Enterprises
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	614,453	693,047
Less Than 12 Months, Gross Unrealized Losses	(9,516)	(10,919)
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total Fair Value	614,453	693,047
Total Gross Unrealized Losses	(9,516)	(10,919)
Commercial - Government Agencies
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	84,783	87,586
Less Than 12 Months, Gross Unrealized Losses	(1,774)	(2,597)
12 Months or Longer, Fair Value	15,358	18,653
12 Months or Longer, Gross Unrealized Losses	(54)	(68)
Total Fair Value	100,141	106,239
Total Gross Unrealized Losses	(1,828)	(2,665)
Mortgage-Backed Securities
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	1,527,539	1,615,860
Less Than 12 Months, Gross Unrealized Losses	(25,260)	(28,829)
12 Months or Longer, Fair Value	234,272	250,030
12 Months or Longer, Gross Unrealized Losses	(7,964)	(8,616)
Total Fair Value	1,761,811	1,865,890
Total Gross Unrealized Losses	$ (33,224)	$ (37,445)

(Interest Income - Taxable_Non-

(Interest Income - Taxable/Non-Taxable Invest. Sec.) (Details 5) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Interest Income from Investment Securities, Taxable	$ 25,767	$ 25,987
Interest Income from Investment Securities, Non-Taxable	5,023	5,218
Total Interest Income from Investment Securities	$ 30,790	$ 31,205

Investment Securities (Municipa

Investment Securities (Municipal Bonds Narrative) (Details 6) $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
Schedule of Available-for-sale Securities [Line Items]
Municipal Debt Securities Issued by One Single State or Political Subdivision as Percentage of Total Fair Value of Entire Municipal Debt Securities Threshold	10.00%
HAWAII | Debt Securities Issued by States and Political Subdivisions
Schedule of Available-for-sale Securities [Line Items]
Debt Securities Issued by State and Political Subdivision, State of Hawaii	$ 534.2
Municipal Debt Securities | Geographic Concentration Risk | HAWAII | Debt Securities Issued by States and Political Subdivisions
Schedule of Available-for-sale Securities [Line Items]
Concentration Risk, Percentage	57.00%
Hawaiian Municipal Debt Securities | Investment Concentration Risk | HAWAII | General Obligation Bond
Schedule of Available-for-sale Securities [Line Items]
Concentration Risk, Percentage	78.00%
Moody's, Aa2 or Better Rating | Hawaiian Municipal Debt Securities | Investment Concentration Risk | HAWAII | Debt Securities Issued by States and Political Subdivisions
Schedule of Available-for-sale Securities [Line Items]
Concentration Risk, Percentage	94.00%

(FHLB and FRB Stocks) (Details

(FHLB and FRB Stocks) (Details 7) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Federal Home Loan Bank Stock	$ 20,000	$ 20,000
Federal Reserve Bank Stock	20,167	20,063
Total	$ 40,167	$ 40,063

Investment Securities (Visa Cla

Investment Securities (Visa Class B Restricted Shares Narrative) (Details 8) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)shares	Mar. 31, 2016USD ($)
Net Investment Income [Line Items]
Gain on Sale of Investment Securities | $	$ 12,467	$ 11,355
Visa Class B Restricted Securities
Net Investment Income [Line Items]
Conversion Ratio to Class A shares	1.6483
Gain on Sale of Investment Securities | $	$ 12,500
Sale of investment securities, shares	90,000
Equity securities remaining, shares	90,914
Visa Class A Unrestricted Securities
Net Investment Income [Line Items]
Equity securities remaining, shares	149,854

Loans and Leases and the Allo45

Loans and Leases and the Allowance for Loan and Lease Losses (Loans and Leases Portfolio and Narrative) (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Loan and lease portfolio
Loans and Leases	$ 9,113,809	$ 8,065,610	$ 8,949,785
Net Gains Related to Sales of Residential Mortgage Loans	1,300	1,800
Commercial
Loan and lease portfolio
Loans and Leases	3,630,495	3,256,253	3,617,692
Commercial | Commercial and Industrial
Loan and lease portfolio
Loans and Leases	1,250,006		1,249,791
Commercial | Commercial Mortgage
Loan and lease portfolio
Loans and Leases	1,909,064		1,889,551
Commercial | Construction
Loan and lease portfolio
Loans and Leases	262,660		270,018
Commercial | Lease Financing
Loan and lease portfolio
Loans and Leases	208,765		208,332
Consumer
Loan and lease portfolio
Loans and Leases	5,483,314	$ 4,809,357	5,332,093
Consumer | Residential Mortgage
Loan and lease portfolio
Loans and Leases	3,224,206		3,163,073
Consumer | Home Equity
Loan and lease portfolio
Loans and Leases	1,411,489		1,334,163
Consumer | Automobile
Loan and lease portfolio
Loans and Leases	468,078		454,333
Consumer | Other
Loan and lease portfolio
Loans and Leases	$ 379,541		$ 380,524

Loans and Leases and the Allo46

Loans and Leases and the Allowance for Loan and Lease Losses (Allowance for Loan and Lease Losses) (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Allowance for Loan and Lease Losses:
Balance at Beginning of Period	$ 104,273	$ 102,880
Loans and Leases Charged-Off	(5,704)	(4,887)
Recoveries on Loans and Leases Previously Charged-Off	2,095	8,684
Net Loans and Leases Recovered (Charged-Off)	(3,609)	3,797
Provision for Credit Losses	4,400	(2,000)
Balance at End of Period	105,064	104,677
Allowance for Loan and Lease Losses:
Individually Evaluated for Impairment			$ 3,950		$ 3,563
Collectively Evaluated for Impairment			101,114		101,114
Total	104,273	102,880	105,064	$ 104,273	104,677
Recorded Investment in Loans and Leases:
Individually Evaluated for Impairment			60,331		62,014
Collectively Evaluated for Impairment			9,053,478		8,003,596
Total Loans and Leases			9,113,809	8,949,785	8,065,610
Commercial
Allowance for Loan and Lease Losses:
Balance at Beginning of Period	65,680	60,714
Loans and Leases Charged-Off	(174)	(257)
Recoveries on Loans and Leases Previously Charged-Off	336	6,905
Net Loans and Leases Recovered (Charged-Off)	162	6,648
Provision for Credit Losses	1,051	(5,552)
Balance at End of Period	66,893	61,810
Allowance for Loan and Lease Losses:
Individually Evaluated for Impairment			38		157
Collectively Evaluated for Impairment			66,855		61,653
Total	65,680	60,714	66,893	65,680	61,810
Recorded Investment in Loans and Leases:
Individually Evaluated for Impairment			20,902		22,986
Collectively Evaluated for Impairment			3,609,593		3,233,267
Total Loans and Leases			3,630,495	3,617,692	3,256,253
Consumer
Allowance for Loan and Lease Losses:
Balance at Beginning of Period	38,593	42,166
Loans and Leases Charged-Off	(5,530)	(4,630)
Recoveries on Loans and Leases Previously Charged-Off	1,759	1,779
Net Loans and Leases Recovered (Charged-Off)	(3,771)	(2,851)
Provision for Credit Losses	3,349	3,552
Balance at End of Period	38,171	42,867
Allowance for Loan and Lease Losses:
Individually Evaluated for Impairment			3,912		3,406
Collectively Evaluated for Impairment			34,259		39,461
Total	$ 38,593	$ 42,166	38,171	38,593	42,867
Recorded Investment in Loans and Leases:
Individually Evaluated for Impairment			39,429		39,028
Collectively Evaluated for Impairment			5,443,885		4,770,329
Total Loans and Leases			$ 5,483,314	$ 5,332,093	$ 4,809,357

Loans and Leases and the Allo47

Loans and Leases and the Allowance for Loan and Lease Losses (Credit Quality Indicators & Narrative) (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	$ 9,113,809	$ 8,949,785	$ 8,065,610
Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Number of months up to which residential and home equity loans may be considered classified, even if they are current as to principal and interest	6 months
Residential Mortgage | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Number of days past due for loans and leases in classified credit quality indicator	90 days
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Home Equity | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Number of days past due for loans and leases in classified credit quality indicator	90 days
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Commercial
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	$ 3,630,495	3,617,692	3,256,253
Commercial | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	3,481,236	3,466,817
Commercial | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	96,353	91,210
Commercial | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	52,906	59,665
Commercial | Commercial and Industrial
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	1,250,006	1,249,791
Commercial | Commercial and Industrial | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	1,204,150	1,203,025
Commercial | Commercial and Industrial | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	18,915	20,253
Commercial | Commercial and Industrial | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	26,941	26,513
Commercial | Commercial Mortgage
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	1,909,064	1,889,551
Commercial | Commercial Mortgage | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	1,811,871	1,792,119
Commercial | Commercial Mortgage | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	73,225	66,734
Commercial | Commercial Mortgage | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	23,968	30,698
Commercial | Construction
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	262,660	270,018
Commercial | Construction | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	256,962	264,287
Commercial | Construction | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	4,209	4,218
Commercial | Construction | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	1,489	1,513
Commercial | Lease Financing
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	208,765	208,332
Commercial | Lease Financing | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	208,253	207,386
Commercial | Lease Financing | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	4	5
Commercial | Lease Financing | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	508	941
Consumer
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	5,483,314	5,332,093	$ 4,809,357
Consumer | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	5,463,534	5,310,202
Consumer | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	$ 2,464	2,964
Consumer | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Number of days past due for loans and leases in classified credit quality indicator	90 days
Total Recorded Investment in Loans and Leases	$ 17,316	18,927
Consumer | Residential Mortgage
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	3,224,206	3,163,073
Consumer | Residential Mortgage | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	3,212,370	3,149,294
Consumer | Residential Mortgage | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	0	0
Consumer | Residential Mortgage | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	11,836	13,779
Consumer | Home Equity
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	1,411,489	1,334,163
Consumer | Home Equity | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	1,404,974	1,327,676
Consumer | Home Equity | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	2,464	2,964
Consumer | Home Equity | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	4,051	3,523
Consumer | Automobile
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	468,078	454,333
Consumer | Automobile | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	467,405	453,439
Consumer | Automobile | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	0	0
Consumer | Automobile | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	673	894
Consumer | Other
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	379,541	380,524
Consumer | Other | Pass
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	378,785	379,793
Consumer | Other | Special Mention
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	0	0
Consumer | Other | Classified
Recorded Investment in Loans and Leases by Class and by Credit Quality Indicator
Total Recorded Investment in Loans and Leases	$ 756	$ 731

Loans and Leases and the Allo48

Loans and Leases and the Allowance for Loan and Lease Losses (Aging Analysis) (Details 4) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	$ 16,474	$ 18,075
Total Past Due and Non-Accrual	52,570	67,494
Current	9,061,239	8,882,291
Total Loans and Leases	9,113,809	8,949,785	$ 8,065,610
Non-Accrual Loans and Leases that are Current	$ 3,383	3,059
Number of days non-accrual loans are not past due	30 days
30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	$ 24,306	35,272
60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,933	7,077
Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,857	7,070
Commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	1,201	1,148
Total Past Due and Non-Accrual	8,951	13,007
Current	3,621,544	3,604,685
Total Loans and Leases	3,630,495	3,617,692	3,256,253
Non-Accrual Loans and Leases that are Current	566	416
Commercial | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	6,914	10,826
Commercial | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	836	1,033
Commercial | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Commercial and Industrial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	228	151
Total Past Due and Non-Accrual	6,664	11,865
Current	1,243,342	1,237,926
Total Loans and Leases	1,250,006	1,249,791
Non-Accrual Loans and Leases that are Current	162	0
Commercial | Commercial and Industrial | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	6,275	10,698
Commercial | Commercial and Industrial | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	161	1,016
Commercial | Commercial and Industrial | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Commercial Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	973	997
Total Past Due and Non-Accrual	2,287	1,142
Current	1,906,777	1,888,409
Total Loans and Leases	1,909,064	1,889,551
Non-Accrual Loans and Leases that are Current	404	416
Commercial | Commercial Mortgage | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	639	128
Commercial | Commercial Mortgage | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	675	17
Commercial | Commercial Mortgage | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	0	0
Total Past Due and Non-Accrual	0	0
Current	262,660	270,018
Total Loans and Leases	262,660	270,018
Non-Accrual Loans and Leases that are Current	0	0
Commercial | Construction | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Construction | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Construction | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Lease Financing
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	0	0
Total Past Due and Non-Accrual	0	0
Current	208,765	208,332
Total Loans and Leases	208,765	208,332
Non-Accrual Loans and Leases that are Current	0	0
Commercial | Lease Financing | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Lease Financing | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Lease Financing | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	15,273	16,927
Total Past Due and Non-Accrual	43,619	54,487
Current	5,439,695	5,277,606
Total Loans and Leases	5,483,314	5,332,093	$ 4,809,357
Non-Accrual Loans and Leases that are Current	2,817	2,643
Consumer | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	17,392	24,446
Consumer | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,097	6,044
Consumer | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	5,857	7,070
Consumer | Residential Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	11,756	13,780
Total Past Due and Non-Accrual	18,497	23,504
Current	3,205,709	3,139,569
Total Loans and Leases	3,224,206	3,163,073
Non-Accrual Loans and Leases that are Current	1,517	1,628
Consumer | Residential Mortgage | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	3,259	6,491
Consumer | Residential Mortgage | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,169	106
Consumer | Residential Mortgage | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,313	3,127
Consumer | Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	3,517	3,147
Total Past Due and Non-Accrual	8,004	9,911
Current	1,403,485	1,324,252
Total Loans and Leases	1,411,489	1,334,163
Non-Accrual Loans and Leases that are Current	1,300	1,015
Consumer | Home Equity | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,342	3,063
Consumer | Home Equity | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,012	2,244
Consumer | Home Equity | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,133	1,457
Consumer | Automobile
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	0	0
Total Past Due and Non-Accrual	11,067	14,748
Current	457,011	439,585
Total Loans and Leases	468,078	454,333
Non-Accrual Loans and Leases that are Current	0	0
Consumer | Automobile | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	9,128	11,692
Consumer | Automobile | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,266	2,162
Consumer | Automobile | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	673	894
Consumer | Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	0	0
Total Past Due and Non-Accrual	6,051	6,324
Current	373,490	374,200
Total Loans and Leases	379,541	380,524
Non-Accrual Loans and Leases that are Current	0	0
Consumer | Other | 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,663	3,200
Consumer | Other | 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,650	1,532
Consumer | Other | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	$ 1,738	$ 1,592

Loans and Leases and the Allo49

Loans and Leases and the Allowance for Loan and Lease Losses (Impaired Loans) (Details 5) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Impaired Loans Information:
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 19,871		$ 20,442
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	30,333		30,904
Impaired Financing Receivable, with Related Allowance, Recorded Investment	40,460		40,256
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	45,449		45,246
Related Allowance for Loan Losses	3,950		3,555
Recorded Investment	60,331		60,698
Unpaid Principal Balance	75,782		76,150
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	20,157	$ 24,184
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized, Accrual Method	190	201
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	40,359	40,173
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	466	449
Impaired Loans Average Recorded Investment	60,516	64,357
Impaired Loans Interest Income Recognized	656	650
Commercial
Impaired Loans Information:
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	19,871		20,442
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	30,333		30,904
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,031		1,130
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,031		1,130
Related Allowance for Loan Losses	38		45
Recorded Investment	20,902		21,572
Unpaid Principal Balance	31,364		32,034
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	20,157	24,184
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized, Accrual Method	190	201
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,081	1,285
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	15	20
Impaired Loans Average Recorded Investment	21,238	25,469
Impaired Loans Interest Income Recognized	205	221
Commercial | Commercial and Industrial
Impaired Loans Information:
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	9,217		9,556
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	16,179		16,518
Impaired Financing Receivable, with Related Allowance, Recorded Investment	689		765
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	689		765
Related Allowance for Loan Losses	14		24
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	9,387	12,360
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized, Accrual Method	81	106
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	727	1,285
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	11	20
Commercial | Commercial Mortgage
Impaired Loans Information:
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	9,165		9,373
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	12,665		12,873
Impaired Financing Receivable, with Related Allowance, Recorded Investment	342		365
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	342		365
Related Allowance for Loan Losses	24		21
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	9,269	10,231
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized, Accrual Method	85	69
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	354	0
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	4	0
Commercial | Construction
Impaired Loans Information:
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,489		1,513
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,489		1,513
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,501	1,593
Impaired Financing Receivable, with No Related Allowance, Interest Income Recognized, Accrual Method	24	26
Consumer
Impaired Loans Information:
Impaired Financing Receivable, with Related Allowance, Recorded Investment	39,429		39,126
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	44,418		44,116
Related Allowance for Loan Losses	3,912		3,510
Recorded Investment	39,429		39,126
Unpaid Principal Balance	44,418		44,116
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	39,278	38,888
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	451	429
Impaired Loans Average Recorded Investment	39,278	38,888
Impaired Loans Interest Income Recognized	451	429
Consumer | Residential Mortgage
Impaired Loans Information:
Impaired Financing Receivable, with Related Allowance, Recorded Investment	24,349		25,625
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	29,338		30,615
Related Allowance for Loan Losses	3,325		3,224
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	24,987	28,606
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	212	251
Consumer | Home Equity
Impaired Loans Information:
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,507		1,516
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,507		1,516
Related Allowance for Loan Losses	263		15
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,512	1,303
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	17	17
Consumer | Automobile
Impaired Loans Information:
Impaired Financing Receivable, with Related Allowance, Recorded Investment	10,916		9,660
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	10,916		9,660
Related Allowance for Loan Losses	248		206
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	10,288	7,198
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	169	122
Consumer | Other
Impaired Loans Information:
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,657		2,325
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,657		2,325
Related Allowance for Loan Losses	76		$ 65
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,491	1,781
Impaired Financing Receivable, with Related Allowance, Interest Income Recognized, Accrual Method	$ 53	$ 39

Loans and Leases and the Allo50

Loans and Leases and the Allowance for Loan and Lease Losses (Troubled Debt Restructuring & Narrative) (Details 6) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017USD ($)contract	Mar. 31, 2016USD ($)contract	Dec. 31, 2016USD ($)
Information related to loans modified as a TDR
Recorded Investment	$ 59,500		$ 60,000
Available Commitments to Lend Additional Funds on Loans Modified as TDR	$ 300		$ 400
Number of Contracts | contract	210	136
Recorded Investment (as of period end)	$ 7,306	$ 6,205
Increase in Allowance (as of period end)	$ 71	$ 240
Residential Mortgage | Maximum
Information related to loans modified as a TDR
Period of Time Loan Being Fully Amortized	40 years
Land Loan | Maximum
Information related to loans modified as a TDR
Period of Time Loan Being Fully Amortized	360 months
Extending Balloon Payments	5 years
Commercial
Information related to loans modified as a TDR
Number of Contracts | contract	6	17
Recorded Investment (as of period end)	$ 4,262	$ 2,988
Increase in Allowance (as of period end)	$ 1	$ 0
Commercial | Commercial and Industrial
Information related to loans modified as a TDR
Number of Contracts | contract	5	17
Recorded Investment (as of period end)	$ 3,858	$ 2,988
Increase in Allowance (as of period end)	$ 1	$ 0
Commercial | Commercial Mortgage
Information related to loans modified as a TDR
Number of Contracts | contract	1	0
Recorded Investment (as of period end)	$ 404	$ 0
Increase in Allowance (as of period end)	$ 0	$ 0
Consumer
Information related to loans modified as a TDR
Number of Contracts | contract	204	119
Recorded Investment (as of period end)	$ 3,044	$ 3,217
Increase in Allowance (as of period end)	$ 70	$ 240
Consumer | Residential Mortgage
Information related to loans modified as a TDR
Number of Contracts | contract	1	3
Recorded Investment (as of period end)	$ 98	$ 1,166
Increase in Allowance (as of period end)	$ 0	$ 197
Consumer | Home Equity
Information related to loans modified as a TDR
Number of Contracts | contract	0	1
Recorded Investment (as of period end)	$ 0	$ 478
Increase in Allowance (as of period end)	$ 0	$ 6
Consumer | Automobile
Information related to loans modified as a TDR
Number of Contracts | contract	113	53
Recorded Investment (as of period end)	$ 2,303	$ 1,123
Increase in Allowance (as of period end)	$ 52	$ 24
Consumer | Other
Information related to loans modified as a TDR
Number of Contracts | contract	90	62
Recorded Investment (as of period end)	$ 643	$ 450
Increase in Allowance (as of period end)	$ 18	$ 13

Loans and Leases and the Allo51

Loans and Leases and the Allowance for Loan and Lease Losses (Troubled Debt Restructuring's that Defaulted During the Period) (Details 7)	3 Months Ended
	Mar. 31, 2017USD ($)contract	Mar. 31, 2016USD ($)contract
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	41	26
Recorded Investment (as of period ended), TDRs that Defaulted	$ 975,000	$ 1,423,000
Minimum
Information related to loans modified as a TDR
Default Period Past Due Following Modification of Loans in TDR (in days)	60 days
Commercial
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	3	0
Recorded Investment (as of period ended), TDRs that Defaulted	$ 552,000	$ 0
Commercial | Commercial and Industrial
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	2	0
Recorded Investment (as of period ended), TDRs that Defaulted	$ 148,000	$ 0
Commercial | Commercial Mortgage
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted	1	0
Recorded Investment (as of period ended), TDRs that Defaulted	$ 404,000	$ 0
Consumer
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	38	26
Recorded Investment (as of period ended), TDRs that Defaulted	$ 423,000	$ 1,423,000
Consumer | Residential Mortgage
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	0	2
Recorded Investment (as of period ended), TDRs that Defaulted	$ 0	$ 1,031,000
Consumer | Home Equity
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	0	1
Recorded Investment (as of period ended), TDRs that Defaulted	$ 0	$ 165,000
Consumer | Automobile
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	11	5
Recorded Investment (as of period ended), TDRs that Defaulted	$ 224,000	$ 116,000
Consumer | Other
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	27	18
Recorded Investment (as of period ended), TDRs that Defaulted	$ 199,000	$ 111,000

Loans and Leases and the Allo52

Loans and Leases and the Allowance for Loan and Lease Losses (Foreclosure Proceedings Narrative) (Details 8) $ in Millions	Mar. 31, 2017USD ($)
Loans and Leases and Allowance for Loan and Lease Losses [Abstract]
Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$ 7.7

Mortgage Servicing Rights (Narr

Mortgage Servicing Rights (Narrative) (Details 1) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Transfers and Servicing of Financial Assets [Abstract]
Residential mortgage loans serviced for third parties	$ 2,800		$ 2,700
Servicing income, including late and ancillary fees	$ 1.7	$ 1.7

Mortgage Servicing Rights (Fair

Mortgage Servicing Rights (Fair value method rollforward) (Details 2) - Mortgage Servicing Rights - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Mortgage servicing rights accounted for under the fair value measurement method [Rollforward]
Balance at Beginning of Period	$ 1,655	$ 1,970
Due to Change in Valuation Assumptions	0	0
Due to Payoffs	(69)	(60)
Total Changes in Fair Value of Mortgage Servicing Rights	(69)	(60)
Balance at End of Period	$ 1,586	$ 1,910

Mortgage Servicing Rights (Amor

Mortgage Servicing Rights (Amortization method rollforward) (Details 3) - Mortgage Servicing Rights - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Mortgage Servicing Rights Accounted for Under the Amortization Method {Rollforward)
Balance at Beginning of Period	$ 22,008	$ 21,032
Servicing Rights that Resulted From Asset Transfers	1,315	441
Amortization	(618)	(635)
Valuation Allowance Provision	0	(85)
Balance at End of Period	22,705	20,753
Valuation Allowance for Impairment of Mortgage Servicing Rights Accounted for under the Amortization Method [Roll Forward]
Balance at Beginning of Period	0	(21)
Valuation Allowance Provision	0	(85)
Balance at End of Period	0	(106)
Fair Value of Mortgage Servicing Rights Accounted for Under the Amortization Method
Beginning of Period	25,148	24,804
End of Period	$ 25,946	$ 20,841

Mortgage Servicing Rights (Key

Mortgage Servicing Rights (Key assumptions) (Details 4) - Mortgage Servicing Rights	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Key data and assumptions used in estimating the fair value of mortgage servicing rights
Weighted-Average Constant Prepayment Rate (as a percent)	8.07%	8.13%
Weighted-Average Life (in years)	7 years 5 months 16 days	7 years 5 months 4 days
Weighted-Average Note Rate (as a percent)	4.08%	4.10%
Weighted-Average Discount Rate (as a percent)	9.00%	9.33%

Mortgage Servicing Rights (Sens

Mortgage Servicing Rights (Sensitivity analysis) (Details 5) - Mortgage Servicing Rights - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Constant Prepayment Rate
Decrease in fair value from 25 basis points (“bps”) adverse change	$ (328)	$ (321)
Decrease in fair value from 50 bps adverse change	(650)	(636)
Discount Rate
Decrease in fair value from 25 bps adverse change	(296)	(288)
Decrease in fair value from 50 bps adverse change	$ (586)	$ (570)

Low Income Housing Tax Credit58

Low Income Housing Tax Credit Partnerships (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Affordable Housing Tax Credit Investments, Unfunded Commitment [Abstract]
2,017	$ 6,260
2,018	8,526
2,019	5,947
2,020	27
2,021	9
Thereafter	382
Total Unfunded Commitments	21,151
Effective Yield Method
Tax credits and other tax benefits recognized	3,430	$ 3,516
Amortization Expense in Provision for Income Taxes	2,161	2,174
Proportional Amortization Method
Tax credits and other tax benefits recognized	320	259
Amortization Expense in Provision for Income Taxes	253	200
Net affordable housing tax credit investments and related unfunded commitments	69,400		$ 66,600
Write down from impairment of LIHTC Investments	$ 0	$ 0

Balance Sheet Offsetting (Repos

Balance Sheet Offsetting (Repos - by maturity date and collateral type) (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	$ 505,292	$ 523,378
Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	310,449	304,681
Debt Securities Issued by States and Political Subdivisions
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	5,292	22,640
Mortgage-Backed Securities: Residential - Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	96,060	98,019
Mortgage-Backed Securities: Residential - U.S. Government-Sponsored Enterprises
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	93,491	98,038
Maturity Up To 90 Days [Member]
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	900	22,788
Maturity Up To 90 Days [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity Up To 90 Days [Member] | Debt Securities Issued by States and Political Subdivisions
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	900	22,050
Maturity Up To 90 Days [Member] | Mortgage-Backed Securities: Residential - Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	738
Maturity Up To 90 Days [Member] | Mortgage-Backed Securities: Residential - U.S. Government-Sponsored Enterprises
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days [Member]
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	2,392	590
Maturity 91 To 365 Days [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days [Member] | Debt Securities Issued by States and Political Subdivisions
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	2,392	590
Maturity 91 To 365 Days [Member] | Mortgage-Backed Securities: Residential - Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days [Member] | Mortgage-Backed Securities: Residential - U.S. Government-Sponsored Enterprises
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity 1 To 3 Years [Member]
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	202,000	200,000
Maturity 1 To 3 Years [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	200,000	200,000
Maturity 1 To 3 Years [Member] | Debt Securities Issued by States and Political Subdivisions
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	2,000	0
Maturity 1 To 3 Years [Member] | Mortgage-Backed Securities: Residential - Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity 1 To 3 Years [Member] | Mortgage-Backed Securities: Residential - U.S. Government-Sponsored Enterprises
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity After 3 Years [Member]
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	300,000	300,000
Maturity After 3 Years [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	110,449	104,681
Maturity After 3 Years [Member] | Debt Securities Issued by States and Political Subdivisions
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	0	0
Maturity After 3 Years [Member] | Mortgage-Backed Securities: Residential - Government Agencies
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	96,060	97,281
Maturity After 3 Years [Member] | Mortgage-Backed Securities: Residential - U.S. Government-Sponsored Enterprises
Securities Sold Under Agreements to Repurchase
Securities Sold under Agreements to Repurchase	$ 93,491	$ 98,038

Balance Sheet Offsetting (Asset

Balance Sheet Offsetting (Assets and liabilities subject to MNA, or repurchase agreements) (Details 2) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	$ 505,292	$ 523,378
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	505,292	523,378
Repurchase Agreements, Fair Value of Collateral Pledged	505,292	523,378
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Interest Rate Swap Agreements
Offsetting Assets and Liabilities [Line items]
Net liability positions, aggregate fair value	4,900	5,500
Institutional Counterparties | Interest Rate Swap Agreements
Offsetting Assets and Liabilities [Line items]
Investment Securities Pledged as Collateral, Fair Value	1,000	500
Assets:
Gross Amounts of Recognized Assets	5,276	5,094
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Assets Presented in the Statements of Condition	5,276	5,094
Netting Adjustments per Master Netting Arrangements	5,276	5,094
Gross Amounts Not Offset in the Statements of Condition - FV of collateral pledged	0	0
Derivative Assets, Net Amount	0	0
Liabilities:
Gross Amounts of Recognized Liabilities	5,752	6,489
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Liabilities Presented in the Statements of Condition	5,752	6,489
Derivative Liability, Netting Adjustments per Master Netting Arrangements	5,276	5,094
Derivative, Collateral, Right to Reclaim Securities	476	500
Derivative Liabilities, Net Amount	0	895
Private Institutions
Offsetting Assets and Liabilities [Line items]
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	590,500	599,300
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	500,000	500,000
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	500,000	500,000
Repurchase Agreements, Fair Value of Collateral Pledged	500,000	500,000
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Government Entities
Offsetting Assets and Liabilities [Line items]
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	7,100	28,900
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	5,292	23,378
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	5,292	23,378
Repurchase Agreements, Fair Value of Collateral Pledged	5,292	23,378
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	$ 0	$ 0

Accumulated Other Comprehensi61

Accumulated Other Comprehensive Income (Loss) (AOCI Components Pre Post & Tax Effect) (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Other Comprehensive Income (Loss), Before Tax:
Net Unrealized Gains (Losses) Arising During the Period	$ 7,580	$ 13,944
Amortization of Unrealized Holding (Gains) Losses on HTM Securities	504	422
Net Unrealized Gains (Losses) on Investment Securities	8,084	14,366
Amortization of Net Actuarial Losses (Gains)	323	314
Amortization of Prior Service Credit	(81)	(81)
Defined Benefit Plans, Net	242	233
Other Comprehensive Income (Loss)	8,326	14,599
Other Comprehensive Income (Loss), Tax Effect:
Net Unrealized Gains (Losses) Arising During the Period	2,991	5,505
Amortization of Unrealized Holding (Gains) Losses on HTM Securities	199	167
Net Unrealized Gains (Losses) on Investment Securities	3,190	5,672
Amortization of Net Actuarial Losses (Gains)	128	124
Amortization of Prior Service Credit	(32)	(32)
Defined Benefit Plans, Net	96	92
Other Comprehensive Income (Loss)	3,286	5,764
Other Comprehensive Income (Loss), Net of Tax:
Net Unrealized Gains (Losses) Arising During the Period	4,589	8,439
Amortization of Unrealized Holding (Gains) Losses on HTM Securities	305	255
Net Unrealized Gains (Losses) on Investment Securities	4,894	8,694
Amortization of Net Actuarial Losses (Gains)	195	190
Amortization of Prior Service Credit	(49)	(49)
Defined Benefit Plans, Net	146	141
Total Other Comprehensive Income	$ 5,040	$ 8,835

Accumulated Other Comprehensi62

Accumulated Other Comprehensive Income (Loss) (Change in AOCI Components net of tax) (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	$ 1,161,537	$ 1,116,260
Total Other Comprehensive Income	5,040	8,835
Balance at End of Period	1,193,137	1,138,753
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(28,892)	(28,861)
Other Comprehensive Income (Loss) Before Reclassifications	0	0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	146	141
Total Other Comprehensive Income	146	141
Balance at End of Period	(28,746)	(28,720)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(33,906)	(23,557)
Other Comprehensive Income (Loss) Before Reclassifications	4,589	8,439
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	451	396
Total Other Comprehensive Income	5,040	8,835
Balance at End of Period	(28,866)	(14,722)
Available-for-sale Securities | Unrealized Gains and Losses on Net Investment Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	1,270	12,559
Other Comprehensive Income (Loss) Before Reclassifications	4,589	8,439
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	0	0
Total Other Comprehensive Income	4,589	8,439
Balance at End of Period	5,859	20,998
Held-to-maturity Securities | Unrealized Gains and Losses on Net Investment Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(6,284)	(7,255)
Other Comprehensive Income (Loss) Before Reclassifications	0	0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	305	255
Total Other Comprehensive Income	305	255
Balance at End of Period	$ (5,979)	$ (7,000)

Accumulated Other Comprehensi63

Accumulated Other Comprehensive Income (Loss) (AOCI Reclass to IS) (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	$ (51,602)	$ (50,514)
Tax Benefit (Expense)	(21,644)	(23,635)
Net Income	51,176	50,210
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Net Income	(451)	(396)
Amortization of Unrealized Gains(Losses) of Investment Securities Transferred from AFS to HTM | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Interest Income	(504)	(422)
Tax Benefit (Expense)	199	167
Net Income	(305)	(255)
Amortization of Defined Benefit Pension Items | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	(242)	(233)
Tax Benefit (Expense)	96	92
Net Income	(146)	(141)
Prior Service Credit | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	81	81
Net Actuarial Losses | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	$ (323)	$ (314)

Earnings Per Share (Details)

Earnings Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Reconciliation of Diluted Shares
Denominator for Basic Earnings Per Share (in shares)	42,406,006	42,920,794
Dilutive Effect of Equity Based Awards (in shares)	343,860	205,732
Denominator for Diluted Earnings Per Share (in shares)	42,749,866	43,126,526
Antidilutive Stock Options and Restricted Stock Outstanding (in shares)	0	28,224

Business Segments (Business Seg

Business Segments (Business Segments Financial Information and Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)atmbranch	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)
Business segment financial information
Federal and State effective tax rate used for segment reporting	37.00%
Net Interest Income	$ 109,872	$ 103,024
Provision for Credit Losses	4,400	(2,000)
Net Interest Income After Provision for Credit Losses	105,472	105,024
Noninterest Income	55,916	56,207
Noninterest Expense	(88,568)	(87,386)
Income Before Provision for Income Taxes	72,820	73,845
Provision for Income Taxes	(21,644)	(23,635)
Net Income	51,176	50,210
Total Assets	$ 16,664,215	15,654,695	$ 16,492,367
Retail Banking
Business segment financial information
Number of branch locations through which products and services are delivered to customers | branch	69
Number of ATM's through which products and services are delivered to customers | atm	441
Net Interest Income	$ 65,158	58,010
Provision for Credit Losses	3,801	2,835
Net Interest Income After Provision for Credit Losses	61,357	55,175
Noninterest Income	20,925	20,807
Noninterest Expense	(52,260)	(52,741)
Income Before Provision for Income Taxes	30,022	23,241
Provision for Income Taxes	(10,673)	(8,227)
Net Income	19,349	15,014
Total Assets	5,438,421	4,763,749
Commercial Banking
Business segment financial information
Net Interest Income	41,931	38,348
Provision for Credit Losses	(188)	(6,626)
Net Interest Income After Provision for Credit Losses	42,119	44,974
Noninterest Income	5,438	7,600
Noninterest Expense	(18,355)	(17,268)
Income Before Provision for Income Taxes	29,202	35,306
Provision for Income Taxes	(10,256)	(12,656)
Net Income	18,946	22,650
Total Assets	3,577,524	3,196,413
Investment Services
Business segment financial information
Net Interest Income	6,650	6,452
Provision for Credit Losses	(5)	(6)
Net Interest Income After Provision for Credit Losses	6,655	6,458
Noninterest Income	14,549	14,024
Noninterest Expense	(15,471)	(15,427)
Income Before Provision for Income Taxes	5,733	5,055
Provision for Income Taxes	(2,121)	(1,870)
Net Income	3,612	3,185
Total Assets	288,178	284,891
Treasury and Other
Business segment financial information
Net Interest Income	(3,867)	214
Provision for Credit Losses	792	1,797
Net Interest Income After Provision for Credit Losses	(4,659)	(1,583)
Noninterest Income	15,004	13,776
Noninterest Expense	(2,482)	(1,950)
Income Before Provision for Income Taxes	7,863	10,243
Provision for Income Taxes	1,406	(882)
Net Income	9,269	9,361
Total Assets	$ 7,360,092	$ 7,409,642

Pension Plans and Postretirem66

Pension Plans and Postretirement Benefit Plan (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Pension Benefits
Net periodic benefit cost for pension plans and the postretirement benefit plan
Service Cost	$ 0	$ 0
Interest Cost	1,161	1,209
Expected Return on Plan Assets	(1,238)	(1,281)
Amortization of Prior Service Credit	0	0
Amortization of Net Actuarial Losses (Gains)	433	389
Net Periodic Benefit Cost	356	317
Employer Contributions	100
Estimated Future Employer Contributions in Current Fiscal Year	500
Postretirement Benefits
Net periodic benefit cost for pension plans and the postretirement benefit plan
Service Cost	123	137
Interest Cost	272	294
Expected Return on Plan Assets	0	0
Amortization of Prior Service Credit	(81)	(81)
Amortization of Net Actuarial Losses (Gains)	(110)	(75)
Net Periodic Benefit Cost	204	$ 275
Employer Contributions	200
Estimated Future Employer Contributions in Current Fiscal Year	$ 1,000

Derivative Financial Instrume67

Derivative Financial Instruments (Notional Amounts) (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Interest Rate Lock Commitments
Derivative [Line Items]
Notional Amount	$ 51,258	$ 55,223
Fair Value	1,262	1,067
Forward Commitments
Derivative [Line Items]
Notional Amount	60,427	104,962
Fair Value	(302)	847
Receive Fixed / Pay Variable Swap
Derivative [Line Items]
Notional Amount	359,072	357,441
Fair Value	462	1,381
Pay Fixed / Receive Variable Swap
Derivative [Line Items]
Notional Amount	359,072	357,441
Fair Value	(476)	(1,395)
Foreign Exchange Contracts
Derivative [Line Items]
Notional Amount	46,740	38,172
Fair Value	$ 339	$ (757)

Derivative Financial Instrume68

Derivative Financial Instruments (Assets and liabilities) (Details 2) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	$ 12,643	$ 13,731
Liability Derivatives	11,358	12,588
Interest Rate Lock Commitments
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	1,262	1,236
Liability Derivatives	0	169
Forward Commitments
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	3	873
Liability Derivatives	305	26
Interest Rate Swap Agreements
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	11,014	11,569
Liability Derivatives	11,028	11,583
Foreign Exchange Contracts
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	364	53
Liability Derivatives	$ 25	$ 810

Derivative Financial Instrume69

Derivative Financial Instruments (Net gains or losses) (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Derivative Instruments, Gain (Loss)
Net gains (losses) recognized in the statements of income	$ 2,049	$ 1,326
Interest Rate Lock Commitments | Mortgage Banking Income
Derivative Instruments, Gain (Loss)
Net gains (losses) recognized in the statements of income	1,267	986
Forward Commitments | Mortgage Banking Income
Derivative Instruments, Gain (Loss)
Net gains (losses) recognized in the statements of income	(424)	(478)
Interest Rate Swap Agreements | Other Noninterest Income
Derivative Instruments, Gain (Loss)
Net gains (losses) recognized in the statements of income	156	109
Foreign Exchange Contracts | Other Noninterest Income
Derivative Instruments, Gain (Loss)
Net gains (losses) recognized in the statements of income	$ 1,050	$ 709

Derivative Financial Instrume70

Derivative Financial Instruments (Narrative) (Details 4) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Liability Derivatives	$ 11,358	$ 12,588
Visa Conversion Rate Swap Agreement
Derivative [Line Items]
Liability Derivatives	$ 0

Commitments, Contingencies, a71

Commitments, Contingencies, and Guarantees (Credit Commitments) (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Credit Commitments [Line Items]
Credit Commitments	$ 2,868,477	$ 2,861,833
Unfunded Commitments to Extend Credit
Credit Commitments [Line Items]
Credit Commitments	2,728,708	2,732,734
Standby Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	126,258	112,830
Commercial Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	$ 13,511	$ 16,269

Commitments, Contingencies, a72

Commitments, Contingencies, and Guarantees (Narrative) (Details 2) - Residential Mortgage $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)Loan
Representations and Warranties [Line Items]
Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding | $	$ 2,600
Number of Mortgage Loans Repurchased	0
Number of Mortgage Loans Repurchased, Pending	1
Unpaid principal balance of mortgage loans repurchased, Pending | $	$ 0.5
Number of Mortgage Loans Repurchased due to Loan Servicing Activities	0
Number of Mortgage Loans Repurchased due to Loan Servicing Activities, Pending	0
Current Residential Mortgage Loans Serviced for Third Parties as Percentage of Total	99.00%

Fair Value of Assets and Liab73

Fair Value of Assets and Liabilities (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Liability Derivatives	$ 11,358	$ 12,588
Visa Conversion Rate Swap Agreement
Derivative [Line Items]
Liability Derivatives	$ 0

Fair Value of Assets and Liab74

Fair Value of Assets and Liabilities (Fair value on recurring basis) (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets:
Available-for-Sale: Fair Value	$ 2,341,570	$ 2,186,041
Loans Held for Sale	20,899	62,499
Fair Value, Measurements, Recurring
Assets:
Available-for-Sale: Fair Value	2,341,570	2,186,041
Loans Held for Sale	20,899	62,499
Mortgage Servicing Rights	1,586	1,655
Other Assets	22,004	21,952
Derivatives	12,643	13,731
Total Assets Measured at Fair Value on a Recurring Basis	2,398,702	2,285,878
Liabilites:
Derivatives	11,358	12,588
Total Liabilities Measured at Fair Value on a Recurring Basis	11,358	12,588
Fair Value, Measurements, Recurring | Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	429,824	408,715
Fair Value, Measurements, Recurring | Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	681,954	671,799
Fair Value, Measurements, Recurring | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	264,963	269,179
Fair Value, Measurements, Recurring | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	964,829	836,348
Fair Value, Measurements, Recurring | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	253,291	243,844
Fair Value, Measurements, Recurring | Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	629,071	506,987
Fair Value, Measurements, Recurring | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	82,467	85,517
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)
Assets:
Available-for-Sale: Fair Value	540	539
Loans Held for Sale	0	0
Mortgage Servicing Rights	0	0
Other Assets	22,004	21,952
Derivatives	0	0
Total Assets Measured at Fair Value on a Recurring Basis	22,544	22,491
Liabilites:
Derivatives	0	0
Total Liabilities Measured at Fair Value on a Recurring Basis	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	540	539
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets:
Available-for-Sale: Fair Value	2,341,030	2,185,502
Loans Held for Sale	20,899	62,499
Mortgage Servicing Rights	0	0
Other Assets	0	0
Derivatives	367	926
Total Assets Measured at Fair Value on a Recurring Basis	2,362,296	2,248,927
Liabilites:
Derivatives	330	836
Total Liabilities Measured at Fair Value on a Recurring Basis	330	836
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	429,284	408,176
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	681,954	671,799
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	264,963	269,179
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	964,829	836,348
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	253,291	243,844
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	629,071	506,987
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	82,467	85,517
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3)
Assets:
Available-for-Sale: Fair Value	0	0
Loans Held for Sale	0	0
Mortgage Servicing Rights	1,586	1,655
Other Assets	0	0
Derivatives	12,276	12,805
Total Assets Measured at Fair Value on a Recurring Basis	13,862	14,460
Liabilites:
Derivatives	11,028	11,752
Total Liabilities Measured at Fair Value on a Recurring Basis	11,028	11,752
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3) | Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3) | Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3) | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3) | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3) | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3) | Residential - U.S. Government-Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring | Significant Other Unobservable Inputs (Level 3) | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	$ 0	$ 0

Fair Value of Assets and Liab75

Fair Value of Assets and Liabilities (FV on recurring basis-Level 3 rollforward) (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Fair Value, Mortgage Servicing Rights Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Mortgage Servicing Rights, Beginning Balance	$ 1,655	$ 1,970
Fair Value, Mortgage Servicing Rights, Realized and Unrealized Net Gains (Losses) Included in Net Income	(69)	(60)
Fair Value, Mortgage Servicing Rights, Ending Balance	1,586	1,910
Fair Value, Mortgage Service Rights, Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held	0	0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Net Derivative Assets and Liabilities, Beginning Balance	1,053	240
Fair Value, Net Derivative Assets and Liabilities, Realized and Unrealized Net Gains (Losses) Included in Net Income	1,267	972
Fair Value, Net Derivative Assets and Liabilities, Transfers to Loans Held for Sale	(1,072)	(841)
Fair Value, Net Derivative Assets and Liabilities, Ending Balance	1,248	371
Fair Value, Net Derivative Assets and Liabilities,Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held	$ 1,248	$ 371

Fair Value of Assets and Liab76

Fair Value of Assets and Liabilities (FV on recurring or nonrecurring basis-level 3 inputs) (Details 3) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Interest Rate Lock Commitments | Pricing Model
Level 3 Assets and Liabilities, Fair Value and Fair Value Unobservable Inputs
Weighted Average Closing Ratio (as a percent)	91.47%	92.26%
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ 1,262	$ 1,067
Interest Rate Swap Agreements | Discounted Cash Flow
Level 3 Assets and Liabilities, Fair Value and Fair Value Unobservable Inputs
Weighted Average Credit Factor (as a percent)	0.12%	0.13%
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ (14)	$ (14)
Mortgage Servicing Rights | Discounted Cash Flow
Level 3 Assets and Liabilities, Fair Value and Fair Value Unobservable Inputs
Weighted Average Constant Prepayment Rate (as a percent)	8.07%	8.13%
Weighted Average Discount Rate (as a percent)	9.00%	9.33%
Mortgage Servicing Rights, at Fair Value	$ 27,532	$ 26,803

Fair Value of Assets and Liab77

Fair Value of Assets and Liabilities (Fair value on a nonrecurring basis) (Details 4) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed Real Estate	$ 2,529	$ 1,686
Foreclosed Real Estate, Valuation Allowance	19
Fair Value, Measurements, Nonrecurring | Significant Other Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed Real Estate	$ 2,529

Fair Value of Assets and Liab78

Fair Value of Assets and Liabilities (FV option) (Details 5) - Residential mortgage loans held for sale - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value Option
Aggregate Fair Value	$ 20,899	$ 62,499
Aggregate Unpaid Principal	20,419	61,782
Aggregate Fair Value Less Aggregate Unpaid Principal	$ 480	$ 717

Fair Value of Assets and Liab79

Fair Value of Assets and Liabilities (Financial instruments not recorded at FV on recurring basis) (Details 6) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financial Instruments - Assets
Held-to-Maturity: Fair Value	$ 3,848,609	$ 3,827,527
Carrying Amount
Financial Instruments - Assets
Held-to-Maturity: Fair Value	3,848,088	3,832,997
Loans	8,742,348	8,583,726
Financial Instruments - Liabilities
Time Deposits	1,400,097	1,217,707
Securities Sold Under Agreements to Repurchase	505,292	523,378
Other Debt	257,153	257,153
Fair Value
Financial Instruments - Assets
Held-to-Maturity: Fair Value	3,848,609	3,827,527
Loans	8,880,551	8,743,191
Financial Instruments - Liabilities
Time Deposits	1,394,757	1,213,705
Securities Sold Under Agreements to Repurchase	505,265	523,374
Other Debt	256,312	256,718
Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Instruments - Assets
Held-to-Maturity: Fair Value	530,513	530,940
Loans	0	0
Financial Instruments - Liabilities
Time Deposits	0	0
Securities Sold Under Agreements to Repurchase	0	0
Other Debt	0	0
Fair Value | Significant Other Observable Inputs (Level 2)
Financial Instruments - Assets
Held-to-Maturity: Fair Value	3,318,096	3,296,587
Loans	0	0
Financial Instruments - Liabilities
Time Deposits	1,394,757	1,213,705
Securities Sold Under Agreements to Repurchase	505,265	523,374
Other Debt	256,312	256,718
Fair Value | Significant Other Unobservable Inputs (Level 3)
Financial Instruments - Assets
Held-to-Maturity: Fair Value	0	0
Loans	8,880,551	8,743,191
Financial Instruments - Liabilities
Time Deposits	0	0
Securities Sold Under Agreements to Repurchase	0	0
Other Debt	$ 0	$ 0