Bank of Hawaii (BOH) 10-K 27 Feb 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Feb. 15, 2017	Jun. 30, 2016
Document and Entity Information
Entity Registrant Name	BANK OF HAWAII CORP
Entity Central Index Key	46,195
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 2,891,113,806
Entity Common Stock, Shares Outstanding		42,644,446
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest Income
Interest and Fees on Loans and Leases	$ 333,239	$ 298,522	$ 267,407
Income on Investment Securities
Available-for-Sale	41,892	41,492	42,475
Held-to-Maturity	79,087	89,650	105,860
Deposits	9	8	9
Funds Sold	2,861	1,133	673
Other	812	1,305	1,209
Total Interest Income	457,900	432,110	417,633
Interest Expense
Deposits	12,647	9,626	9,534
Securities Sold Under Agreements to Repurchase	23,406	25,364	25,905
Funds Purchased	12	12	13
Other Debt	4,256	3,021	2,525
Total Interest Expense	40,321	38,023	37,977
Net Interest Income	417,579	394,087	379,656
Provision for Credit Losses	4,750	1,000	(4,864)
Net Interest Income After Provision for Credit Losses	412,829	393,087	384,520
Noninterest Income
Trust and Asset Management	46,203	47,685	47,798
Mortgage Banking	19,895	11,583	7,571
Service Charges on Deposit Accounts	33,654	34,072	35,669
Fees, Exchange, and Other Service Charges	55,176	53,353	53,401
Investment Securities Gains (Losses), Net	10,203	10,160	8,063
Annuity and Insurance	7,017	7,664	8,065
Bank-Owned Life Insurance	6,561	7,039	6,639
Other	18,634	14,663	12,811
Total Noninterest Income	197,343	186,219	180,017
Noninterest Expense
Salaries and Benefits	201,150	191,963	183,028
Net Occupancy	30,252	30,217	37,296
Net Equipment	20,578	20,162	18,479
Data Processing	15,208	16,472	14,979
Professional Fees	10,072	9,660	9,794
FDIC Insurance	8,615	8,669	7,936
Other	64,703	70,961	55,387
Total Noninterest Expense	350,578	348,104	326,899
Income Before Provision for Income Taxes	259,594	231,202	237,638
Provision for Income Taxes	78,133	70,498	74,596
Net Income	$ 181,461	$ 160,704	$ 163,042
Basic Earnings Per Share (in dollars per share)	$ 4.26	$ 3.72	$ 3.71
Diluted Earnings Per Share (in dollars per share)	4.23	3.70	3.69
Dividends Declared Per Share (in dollars per share)	$ 1.89	$ 1.80	$ 1.80
Basic Weighted Average Shares (in shares)	42,644,100	43,217,818	43,899,208
Diluted Weighted Average Shares (in shares)	42,879,783	43,454,877	44,125,456

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 181,461	$ 160,704	$ 163,042
Other Comprehensive Income (Loss), Net of Tax:
Net Unrealized Gains (Losses) on Investment Securities	(10,318)	(2,125)	16,858
Defined Benefit Plans, Net	(31)	5,254	(11,721)
Other Comprehensive Income (Loss)	(10,349)	3,129	5,137
Comprehensive Income	$ 171,112	$ 163,833	$ 168,179

Consolidated Statements of Cond

Consolidated Statements of Condition - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Interest-Bearing Deposits in Other Banks	$ 3,187	$ 4,130
Funds Sold	707,343	592,892
Investment Securities
Available-for-Sale	2,186,041	2,256,818
Held-to-Maturity (Fair Value of $3,827,527 and $4,006,412)	3,832,997	3,982,736
Loans Held for Sale	62,499	4,808
Loans and Leases	8,949,785	7,878,985
Allowance for Loan and Lease Losses	(104,273)	(102,880)
Net Loans and Leases	8,845,512	7,776,105
Total Earning Assets	15,637,579	14,617,489
Cash and Due From Banks	169,077	158,699
Premises and Equipment, Net	113,505	111,199
Accrued Interest Receivable	46,444	44,719
Foreclosed Real Estate	1,686	824
Mortgage Servicing Rights	23,663	23,002
Goodwill	31,517	31,517
Bank-Owned Life Insurance	274,188	268,175
Other Assets	194,708	199,392
Total Assets	16,492,367	15,455,016
Deposits
Noninterest-Bearing Demand	4,772,727	4,286,331
Interest-Bearing Demand	2,934,107	2,761,930
Savings	5,395,699	5,025,191
Time	1,217,707	1,177,651
Total Deposits	14,320,240	13,251,103
Funds Purchased	9,616	7,333
Securities Sold Under Agreements to Repurchase	523,378	628,857
Other Debt	267,938	245,786
Retirement Benefits Payable	48,451	47,374
Accrued Interest Payable	5,334	5,032
Taxes Payable and Deferred Taxes	21,674	17,737
Other Liabilities	134,199	135,534
Total Liabilities	15,330,830	14,338,756
Commitments, Contingencies, and Guarantees (Note 20)
Shareholders' Equity
Common Stock ($.01 par value; authorized 500,000,000 shares; issued / outstanding: December 31, 2016 - 57,856,672 / 42,635,978 and December 31, 2015 - 57,749,071 / 43,282,153)	576	575
Capital Surplus	551,628	542,041
Accumulated Other Comprehensive Loss	(33,906)	(23,557)
Retained Earnings	1,415,440	1,316,260
Treasury Stock, at Cost (Shares: December 31, 2016 - 15,220,694 and December 31, 2015 - 14,466,918)	(772,201)	(719,059)
Total Shareholders' Equity	1,161,537	1,116,260
Total Liabilities and Shareholders' Equity	$ 16,492,367	$ 15,455,016

Consolidated Statements of Con5

Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Held-to-Maturity, Fair Value	$ 3,827,527	$ 4,006,412
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	57,856,672	57,749,071
Common Stock, outstanding shares	42,635,978	43,282,153
Treasury Stock, Shares	15,220,694	14,466,918

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - 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, 2013	$ 1,011,976	$ 572	$ 522,505	$ (31,823)	$ 1,151,754	$ (631,032)
Beginning Balance (in shares) at Dec. 31, 2013		44,490,385
Increase (decrease) in shareholders' equity
Net Income	163,042				163,042
Other Comprehensive Income (Loss)	5,137			5,137
Share-Based Compensation	7,870		7,870
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits	10,767	$ 2	1,557		(335)	9,543
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits (in shares)		345,278
Common Stock Repurchased	(64,046)					(64,046)
Common Stock Repurchased (in shares)		(1,111,455)
Cash Dividends Declared ($1.80 per share)	(79,660)				(79,660)
Balance at End of Period at Dec. 31, 2014	1,055,086	$ 574	531,932	(26,686)	1,234,801	(685,535)
Ending Balance (in shares) at Dec. 31, 2014		43,724,208
Increase (decrease) in shareholders' equity
Net Income	160,704				160,704
Other Comprehensive Income (Loss)	3,129			3,129
Share-Based Compensation	7,689		7,689
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits	21,000	$ 1	2,420		(878)	19,457
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits (in shares)		401,904
Common Stock Repurchased	(52,981)					(52,981)
Common Stock Repurchased (in shares)		(843,959)
Cash Dividends Declared ($1.80 per share)	(78,367)				(78,367)
Balance at End of Period at Dec. 31, 2015	$ 1,116,260	$ 575	542,041	(23,557)	1,316,260	(719,059)
Ending Balance (in shares) at Dec. 31, 2015	43,282,153	43,282,153
Increase (decrease) in shareholders' equity
Net Income	$ 181,461				181,461
Other Comprehensive Income (Loss)	(10,349)			(10,349)
Share-Based Compensation	6,786		6,786
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits	10,343	$ 1	2,801		(1,124)	8,665
Common Stock Issued under Purchase and Equity Compensation Plans and Related Tax Benefits (in shares)		259,985
Common Stock Repurchased	$ (61,807)					(61,807)
Common Stock Repurchased (in shares)	(847,964)	(906,160)
Cash Dividends Declared ($1.80 per share)	$ (81,157)				(81,157)
Balance at End of Period at Dec. 31, 2016	$ 1,161,537	$ 576	$ 551,628	$ (33,906)	$ 1,415,440	$ (772,201)
Ending Balance (in shares) at Dec. 31, 2016	42,635,978	42,635,978

Consolidated Statements of Sha7

Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Stockholders' Equity [Abstract]
Dividends Declared Per Share (in dollars per share)	$ 1.89	$ 1.80	$ 1.80

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Activities
Net Income	$ 181,461	$ 160,704	$ 163,042
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Credit Losses	4,750	1,000	(4,864)
Impairment of Equipment Held for Sale	0	9,453	0
Depreciation and Amortization	12,871	12,785	12,442
Amortization of Deferred Loan and Lease Fees	(1,467)	(1,896)	(2,064)
Amortization and Accretion of Premiums/Discounts on Investment Securities, Net	43,728	49,698	50,280
Share-Based Compensation	6,786	7,689	7,870
Benefit Plan Contributions	(1,284)	(1,974)	(1,561)
Deferred Income Taxes	7,187	(6,517)	(5,211)
Net Gains (Losses) on Sale of Loans and Leases	(11,113)	(4,139)	(2,896)
Net Losses (Gains) on Investment Securities	(10,203)	(10,160)	(8,063)
Proceeds from Sales of Loans Held for Sale	273,597	86,338	72,096
Originations of Loans Held for Sale	(280,391)	(81,224)	(68,006)
Tax Benefits from Share-Based Compensation	(1,153)	(1,076)	(670)
Net Change in Other Assets and Other Liabilities	1,760	13,331	(2,915)
Net Cash Provided by Operating Activities	226,529	234,012	209,480
Investment Securities Available-for-Sale:
Proceeds from Prepayments and Maturities	398,405	413,587	325,211
Proceeds from Sales	10,430	67,985	16,574
Purchases	(367,346)	(468,573)	(375,620)
Investment Securities Held-to-Maturity:
Proceeds from Prepayments and Maturities	806,339	979,007	776,876
Purchases	(677,652)	(518,664)	(525,070)
Payments to Acquire Life Insurance Policies	0	0	(35,000)
Net Change in Loans and Leases	(1,263,749)	(1,092,118)	(809,382)
Proceeds from Sale of Loans and Leases Held-for-investment	147,898	101,803	0
Premises and Equipment, Net	(15,177)	(14,130)	(13,660)
Net Cash Provided by (Used in) Investing Activities	(960,852)	(531,103)	(640,071)
Financing Activities
Net Change in Deposits	1,069,137	618,014	718,433
Net Change in Short-Term Borrowings	(103,196)	(60,870)	(82,971)
Proceeds from Long-Term Debt	75,000	175,000	0
Repayments of Other Debt	(50,000)	(100,000)	0
Tax Benefits from Share-Based Compensation	1,153	1,076	670
Proceeds from Issuance of Common Stock	9,079	15,364	9,995
Repurchase of Common Stock	(61,807)	(52,981)	(64,046)
Cash Dividends Paid	(81,157)	(78,367)	(79,660)
Net Cash Provided by (Used in) Financing Activities	858,209	517,236	502,421
Net Change in Cash and Cash Equivalents	123,886	220,145	71,830
Cash and Cash Equivalents at End of Period	879,607	755,721	535,576
Cash and Cash Equivalents at Beginning of Period	755,721	535,576	463,746
Supplemental Information
Cash Paid for Interest	39,482	37,419	36,795
Cash Paid for Income Taxes	57,005	72,740	72,127
Non-Cash Investing and Financing Activities:
Transfer from Loans to Foreclosed Real Estate	1,058	676	3,950
Transfer of Loans to Loans Held for Sale	$ 189,972	$ 101,803	$ 0

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
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 majority of the Company’s operations consist of customary commercial and consumer banking services including, but not limited to, lending, leasing, deposit services, trust and investment activities, brokerage services, and trade financing. The accounting and reporting principles of the Company conform to U.S. generally accepted accounting principles (“GAAP”) and prevailing practices within the financial services industry. 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. Certain prior period information has been reclassified to conform to the current year presentation. The following is a summary of the Company’s significant accounting policies: Consolidation 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”). All significant intercompany accounts and transactions have been eliminated in consolidation. 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 low-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 $16.2 million and $25.3 million as of December 31, 2016 and 2015 , respectively. These unfunded commitments are unconditional and legally binding and are recorded in other liabilities in the consolidated statements of condition. See Note 18 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 $78.9 million and $79.0 million as of December 31, 2016 and 2015 , respectively, and is included in other assets in the consolidated statements of condition. Investment Securities Investment securities are accounted for according to their purpose and holding period. Trading securities are those that are bought and held principally for the purpose of selling them in the near term. The Company held no trading securities as of December 31, 2016 and 2015 . Available-for-sale investment securities, comprised of debt and mortgage-backed securities, are those that may be sold before maturity due to changes in the Company’s interest rate risk profile or funding needs, and are reported at fair value with unrealized gains and losses, net of taxes, reported as a component of other comprehensive income. Held-to-maturity investment securities, comprised of debt and mortgage-backed securities, are those that management has the positive intent and ability to hold to maturity and are reported at amortized cost. Realized gains and losses are recorded in noninterest income and are determined on a trade date basis using the specific identification method. Interest and dividends on investment securities are recognized in interest income on an accrual basis. Premiums and discounts are amortized or accreted into interest income using the interest method over the expected lives of the individual securities. Transfers of debt securities from the available-for-sale category to the held-to-maturity category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer remains in accumulated other comprehensive income and in the carrying value of the held-to-maturity investment security. Premiums or discounts on investment securities are amortized or accreted as an adjustment of yield using the interest method over the estimated life of the security. Unrealized holding gains or losses that remain in accumulated other comprehensive income are also amortized or accreted over the estimated life of the security as an adjustment of yield, offsetting the related amortization of the premium or accretion of the discount. Other-Than-Temporary-Impairments of Investment Securities The Company conducts an other-than-temporary-impairment (“OTTI”) analysis of investment securities on a quarterly basis or more often if a potential loss-triggering event occurs. A write-down of a debt security is recorded when fair value is below amortized cost in circumstances where: (1) the Company has the intent to sell a security; (2) it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis; or (3) the Company does not expect to recover the entire amortized cost basis of the security. If the Company intends to sell a security or if it is more likely than not that the Company will be required to sell the security before recovery, an OTTI write-down is recognized in earnings equal to the entire difference between the security’s amortized cost basis and its fair value. If the Company does not intend to sell the security or it is not more likely than not that it will be required to sell the security before recovery, the OTTI write-down is separated into an amount representing credit loss, which is recognized in earnings, and an amount related to all other factors, which is recognized in other comprehensive income. To determine the amount related to credit loss on a debt security, the Company applies a methodology similar to that used for evaluating the impairment of loans. As of December 31, 2016 , management determined that the Company did not own any investment securities that were other-than-temporarily-impaired. Loans Held for Sale Residential mortgage loans with the intent to be sold in the secondary market are accounted for on an aggregate basis under the fair value option. Fair value is primarily determined based on quoted prices for similar loans in active markets. Non-refundable fees and direct loan origination costs related to residential mortgage loans held for sale are recognized as part of the cost basis of the loan at the time of sale. Gains and losses on sales of residential mortgage loans (sales proceeds minus carrying value) are recorded in the mortgage banking component of noninterest income. Commercial loans that management has an active plan to sell are valued on an individual basis at the lower-of-cost-or fair value. Fair value is primarily determined based on quoted prices for similar loans in active markets or agreed upon sales prices. Any reduction in the loan’s value, prior to being transferred to the held-for-sale category, is reflected as a charge-off of the recorded investment in the loan resulting in a new cost basis, with a corresponding reduction in the allowance for loan and lease losses. Further decreases in the fair value of the loan are recognized in noninterest expense. Loans and Leases Loans are reported at the principal amount outstanding, net of unearned income including unamortized deferred loan fees and costs, and cumulative net charge-offs. Interest income is recognized on an accrual basis. Loan origination fees, certain direct costs, and unearned discounts and premiums, if any, are deferred and are generally amortized into interest income as yield adjustments using the interest method over the contractual life of the loan. Loan commitment fees are generally recognized into noninterest income. Other credit-related fees are recognized as fee income, a component of noninterest income, when earned. Direct financing leases are carried at the aggregate of lease payments receivable plus the estimated residual value of leased property, less unearned income. Leveraged leases, which are a form of direct financing leases, are carried net of non-recourse debt. Unearned income on direct financing and leveraged leases is amortized over the lease term by methods that approximate the interest method. Residual values on leased assets are periodically reviewed for impairment. Portfolio segments are defined as the level at which an entity develops and documents a systematic methodology to determine its allowance for loan and lease losses (the “Allowance”). Management has determined that the Company has two portfolio segments of loans and leases (commercial and consumer) in determining the Allowance. Both quantitative and qualitative factors are used by management at the portfolio segment level in determining the adequacy of the Allowance for the Company. Classes of loans and leases are a disaggregation of a Company’s portfolio segments. Classes are defined as a group of loans and leases which share similar initial measurement attributes, risk characteristics, and methods for monitoring and assessing credit risk. Management has determined that the Company has eight classes of loans and leases (commercial and industrial, commercial mortgage, construction, lease financing, residential mortgage, home equity, automobile, and other). The “other” class of loans and leases is comprised of revolving credit, credit cards, installment, and lease financing arrangements. Non-Performing Loans and Leases Generally, all classes of commercial loans and leases are placed on non-accrual status upon becoming contractually past due 90 days as to principal or interest (unless loans and leases are adequately secured by collateral, are in the process of collection, and are reasonably expected to result in repayment), when terms are renegotiated below market levels, or where substantial doubt about full repayment of principal or interest is evident. For residential mortgage and home equity loan classes, loans past due 120 days as to principal or interest may be placed on non-accrual status, and a partial charge-off may be recorded, depending on the collateral value and/or the collectability of the loan. For automobile and other consumer loan classes, the entire outstanding balance of the loan is charged off when the loan becomes 120 days past due ( 180 days past due for credit cards) as to principal or interest. When a loan or lease is placed on non-accrual status, the accrued and unpaid interest receivable is reversed and the loan or lease is accounted for on the cash or cost recovery method until qualifying for return to accrual status. All payments received on non-accrual loans and leases are applied against the principal balance of the loan or lease. A loan or lease may be returned to accrual status when all delinquent interest and principal become current in accordance with the terms of the loan or lease agreement and when doubt about repayment is resolved. Generally, for all classes of loans and leases, a charge-off is recorded when it is probable that a loss has been incurred and when it is possible to determine a reasonable estimate of the loss. For all classes of commercial loans and leases, a charge-off is determined on a judgmental basis after due consideration of the debtor’s prospects for repayment and the fair value of collateral. For the pooled segment of the Company’s commercial and industrial loan class, which consists of small business loans, the entire outstanding balance of the loan remains on accrual status until it is charged off during the month that the loan becomes 120 days past due as to principal or interest. As previously mentioned, for residential mortgage and home equity loan classes, a partial charge-off may be recorded at 120 days past due as to principal or interest depending on the collateral value and/or the collectability of the loan. In the event that a loan or line in the home equity loan class is behind another financial institution’s first mortgage, the entire outstanding balance of the loan is charged off when the loan becomes 120 days past due as to principal or interest, unless the combined loan-to-value ratio is 60% or less. As noted above, loans in the automobile and other consumer loan classes are charged off in its entirety upon the loan becoming 120 days past due ( 180 days past due for credit cards) as to principal or interest. Impaired Loans A loan is considered impaired when, based on current information and events, it is probable that the Company will not be able to collect all amounts due from the borrower in accordance with the contractual terms of the loan, including scheduled interest payments. Impaired loans include all classes of commercial non-accruing loans (except lease financing and small business loans), and all loans modified in a troubled debt restructuring. Impaired loans exclude lease financing and smaller balance homogeneous loans (consumer and small business non-accruing loans) that are collectively evaluated for impairment. For all classes of commercial loans, a quarterly evaluation of individual commercial borrowers is performed to identify impaired loans. The identification of specific borrowers for review is based on a review of non-accrual loans as well as those loans specifically identified by management as exhibiting above average levels of risk. When a loan has been identified as being impaired, the amount of impairment 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. If the measurement of the impaired loan is less than the recorded investment in the loan (including accrued interest, net of deferred loan fees or costs, and unamortized premiums or discounts), impairment is recognized by establishing or adjusting an existing allocation of the Allowance, or by recording a partial charge-off of the loan to its fair value. Interest payments made on impaired loans are typically applied to principal unless collectability of the principal amount is reasonably assured, in which case interest income may be accrued or recognized on a cash basis. Loans Modified in a Troubled Debt Restructuring Loans are considered to have been modified in a troubled debt restructuring when, due to a borrower’s financial difficulties, the Company makes certain concessions to the borrower that it would not otherwise consider. Modifications may include interest rate reductions, principal or interest forgiveness, forbearance, and other actions intended to minimize economic loss and to avoid foreclosure or repossession of collateral. Generally, a non-accrual loan that has been modified in a troubled debt restructuring remains on non-accrual status for a period of at least 6 months to demonstrate that the borrower is able to meet the terms of the modified loan. However, performance prior to the modification, or significant events that coincide with the modification, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual status at the time of loan modification or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains on non-accrual status. Reserve for Credit Losses The Company’s reserve for credit losses is comprised of two components, the Allowance and the reserve for unfunded commitments (the “Unfunded Reserve”). Allowance for Loan and Lease Losses The Company maintains an Allowance adequate to cover management’s estimate of probable credit losses as of the balance sheet date. Loans and leases that are charged off reduce the Allowance while recoveries of loans and leases previously charged off increase the Allowance. Other changes to the level of the Allowance are recognized through charges or credits to the provision for credit losses (the “Provision”). The Allowance considers both unimpaired and impaired loans and is developed and documented at the portfolio segment level (commercial and consumer). The level of the Allowance related to the Company’s commercial portfolio segment is generally based on the credit risk ratings and historical loss experience of individual borrowers. This is supplemented as necessary by credit judgment to address observed changes in trends and conditions, and other relevant environmental and economic factors that may affect the collectability of loans and leases. Excluding those loans and leases evaluated individually for impairment, the Company’s remaining commercial loans and leases are pooled and collectively evaluated for impairment based on business unit and internal risk rating segmentation. The level of the Allowance related to the Company’s consumer portfolio segment is generally based on analyses of homogeneous pools of loans and leases. Loans and leases are pooled based on similar loan and lease risk characteristics for collective evaluation of impairment. Loss estimates are calculated based on historical rolling average loss rates and average delinquency flows to loss. Consumer loans that have been individually evaluated for impairment or modified in a troubled debt restructuring are excluded from the homogeneous pools. Impairment related to such loans is generally determined based on the present value of expected future cash flows discounted at the loan’s original effective interest rate. The Allowance also includes an estimate for inherent losses not reflected in the historical analyses. Relevant factors include, but are not limited to, concentrations of credit risk (geographic, large borrower, and industry), economic trends and conditions, changes in underwriting standards, experience and depth of lending staff, trends in delinquencies, and the level of net charge-offs. In addition, the Company uses a variety of other tools to estimate probable credit losses including, but not limited to, a rolling quarterly forecast of asset quality metrics; stress testing; and performance indicators based on the Company’s own experience, peers, or other industry sources. Reserve for Unfunded Commitments The Unfunded Reserve is a component of other liabilities and represents the estimate for probable credit losses inherent in unfunded commitments to extend credit. Unfunded commitments to extend credit include banker’s acceptances, and standby and commercial letters of credit. The process used to determine the Unfunded Reserve is consistent with the process for determining the Allowance, as adjusted for estimated funding probabilities or loan and lease equivalency factors. The level of the Unfunded Reserve is adjusted by recording an expense or recovery in other noninterest expense. Cash and Cash Equivalents Cash and cash equivalents include cash and due from banks, interest-bearing deposits in other banks, and funds sold. All amounts are readily convertible to cash and have maturities of less than 90 days. Premises and Equipment Premises and equipment, including leasehold improvements, are stated at cost, less accumulated depreciation and amortization. Capital leases are included in premises and equipment at the capitalized amount less accumulated amortization. Premises and equipment are depreciated using the straight-line method over the estimated useful lives of the respective assets. Estimated useful lives generally range up to 30 years for buildings and up to 10 years for equipment. Capitalized leased assets and leasehold improvements are amortized over the shorter of the estimated useful life of the asset or the lease term. Repairs and maintenance are charged to expense as incurred, while improvements which extend the estimated useful life of the asset are capitalized and depreciated over the estimated remaining life of the asset. Premises and equipment are periodically evaluated for impairment when events or changes in circumstances indicate the carrying amount may not be recoverable. Impairment exists when the expected undiscounted future cash flows of premises and equipment are less than its carrying amount. In that event, the Company records a loss for the difference between the carrying amount and the fair value of the asset based on quoted market prices, if applicable, or a discounted cash flow analysis. Foreclosed Real Estate Foreclosed real estate consists of properties acquired through foreclosure proceedings or acceptance of a deed-in-lieu of foreclosure. These properties are recorded at fair value less estimated costs to sell the property. If the recorded investment in the loan exceeds the property’s fair value at the time of acquisition, a charge-off is recorded against the Allowance. If the fair value of the property at the time of acquisition exceeds the carrying amount of the loan, the excess is recorded either as a recovery to the Allowance if a charge-off had previously been recorded, or as a gain on initial transfer in other noninterest income. Subsequent decreases in the property’s fair value and operating expenses of the property are recognized through charges to other noninterest expense. The fair value of the property acquired is based on third party appraisals, broker price opinions, recent sales activity, or a combination thereof, subject to management judgment. Mortgage Servicing Rights Mortgage servicing rights are recognized as assets when mortgage loans are sold and the rights to service those loans are retained. Mortgage servicing rights are initially recorded at fair value by using a discounted cash flow model to calculate the present value of estimated future net servicing income. The Company’s mortgage servicing rights accounted for under the fair value method are carried on the statements of condition at fair value with changes in fair value recorded in mortgage banking income in the period in which the change occurs. Changes in the fair value of mortgage servicing rights are primarily due to changes in valuation inputs, assumptions, and the collection and realization of expected cash flows. The Company’s mortgage servicing rights accounted for under the amortization method are initially recorded at fair value. However, these mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income. An impairment analysis is prepared on a quarterly basis by estimating the fair value of the mortgage servicing rights and comparing that value to the carrying amount. A valuation allowance is established when the carrying amount of these mortgage servicing rights exceeds fair value. Goodwill Goodwill is initially recorded as the excess of the purchase price over the fair value of the net assets acquired in a business combination and is subsequently evaluated at least annually for impairment. Goodwill impairment testing is performed at the reporting unit level, equivalent to a business segment or one level below. The Company has goodwill assigned to the following reporting units: Investment Services and Retail Banking. The Company performs its annual evaluation of goodwill impairment in the fourth quarter of each year and on an interim basis if events or changes in circumstances indicate that there may be impairment. The Company performs a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The qualitative factors considered include, but are not limited to, macroeconomic and State of Hawaii economic conditions, industry and market conditions and trends, the Company’s financial performance, market capitalization, stock price, and any Company-specific events relevant to the assessment. If the assessment of qualitative factors indicates that it is not more likely than not that an impairment exists, no further testing is performed; otherwise an impairment test is performed. The goodwill impairment test is a two-step test. The first step of the goodwill impairment test compares the estimated fair value of identified reporting units with their carrying amount, including goodwill. If the estimated fair value of a reporting unit is less than the carrying value, the second step must be performed to determine the implied fair value of the reporting unit’s goodwill and the amount of goodwill impairment, if any. The implied fair value of goodwill is determined as if the reporting unit were being acquired in a business combination. If the implied fair value of goodwill exceeds the goodwill assigned to the reporting unit, there is no impairment. If the implied fair value of goodwill is less than the carrying amount, a loss would be recognized in other noninterest expense to reduce the carrying amount to the implied fair value of goodwill. Subsequent reversals of goodwill impairment are prohibited. For the year ended December 31, 2016 , the Company’s goodwill impairment evaluation, based on its qualitative assessment, indicated there was no impairment. Non-Marketable Equity Securities The Company is required to own Federal Home Loan Bank (“FHLB”) of Des Moines and Federal Reserve Bank (“FRB”) stock as a condition of membership. These non-marketable equity securities are accounted for at cost which equals par or redemption value. These securities do not have a readily determinable fair value as their ownership is restricted and there is no market for these securities. 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 are periodically evaluated 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 by recognizing temporary declines in value. Securities Sold Under Agreements to Repurchase 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, securities sold under agreements to repurchase are accounted for as collateralized financing arrangements (i.e., secured borrowings) and not as a sale and subsequent repurchase 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 securities sold under agreements to repurchase remain in the respective asset accounts. See Note 19 Balance Sheet Offsetting for more information. Pension and Postretirement Benefit Plans The Company incurs certain employment-related expenses associated with its two frozen pension plans and a postretirement benefit plan (the “Plans”). In order to measure the expense associated with the Plans, various assumptions are made including the discount rate, expected return on plan assets, anticipated mortality rates, and expected future healthcare costs. The assumptions are based on historical experience as well as current facts and circumstances. The Company uses a December 31 measurement date for its Plans. As of the measurement date, plan assets are determined based on fair value, generally representing observable market prices. The projected benefit obligation is primarily determined based on the present value of projected benefit distributions at an assumed discount rate. Net periodic pension benefit costs include interest costs based on an assumed discount rate, the expected return on plan assets based on actuarially derived market-related values, and the amortization of net actuarial gains or losses. Net periodic postretirement benefit costs include service costs, interest costs based on an assumed discount rate, and the amortization of prior service credits and net actuarial gains or losses. Differences between expected and actual results in each year are included in the net actuarial gain or loss amount, which is recognized in other comprehensive income. The net actuarial gain or loss in excess of a 10% corridor is amortized in net periodic benefit cost over the average remaining expected lives of the pension plan participants and over the average remaining future service years of the postretirement benefit plan participants. The prior service credit is amortized over the average remaining service period to full eligibility for participating employees expected to receive benefits. The Company recognizes in its consolidated statements of condition an asset for a plan’s overfunded status or a liability for a plan’s underfunded status. The Company also measures the Plans’ assets and obligations that determine its funded status as of the end of the year and recognizes those changes in other comprehensive income, net of tax. Income Taxes The Parent files a consolidated federal income tax return with the Bank and its subsidiaries. Calculation of the Company’s provision for income taxes requires the interpretation of income tax laws and regulations and the use of estimates and judgments in its determination. The Company is subject to examination by governmental authorities that may give rise to income tax issues due to differing i

Restrictions on Cash

Restrictions on Cash	12 Months Ended
	Dec. 31, 2016
Cash and Cash Equivalents [Abstract]
Restrictions on Cash	The Company is required to maintain cash on hand or on deposit with the Federal Reserve Bank based on the amount of certain customer deposits, mainly checking accounts. The Bank’s average required reserve balances were $153.4 million and $99.3 million as of December 31, 2016 and 2015 , respectively.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Investment Securities	The amortized cost, gross unrealized gains and losses, and fair value of the Company’s investment securities as of December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) Amortized Gross Gross Fair 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 December 31, 2015 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 356,260 $ 3,472 $ (838 ) $ 358,894 Debt Securities Issued by States and Political Subdivisions 709,724 22,498 (304 ) 731,918 Debt Securities Issued by Corporations 313,136 236 (4,502 ) 308,870 Mortgage-Backed Securities: Residential - Government Agencies 310,966 6,546 (1,267 ) 316,245 Residential - U.S. Government-Sponsored Enterprises 442,760 1,368 (2,264 ) 441,864 Commercial - Government Agencies 103,227 — (4,200 ) 99,027 Total Mortgage-Backed Securities 856,953 7,914 (7,731 ) 857,136 Total $ 2,236,073 $ 34,120 $ (13,375 ) $ 2,256,818 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 489,747 $ 1,359 $ (1,139 ) $ 489,967 Debt Securities Issued by States and Political Subdivisions 245,980 17,114 — 263,094 Debt Securities Issued by Corporations 151,301 368 (2,041 ) 149,628 Mortgage-Backed Securities: Residential - Government Agencies 2,191,138 27,893 (19,067 ) 2,199,964 Residential - U.S. Government-Sponsored Enterprises 647,762 1,656 (2,616 ) 646,802 Commercial - Government Agencies 256,808 2,381 (2,232 ) 256,957 Total Mortgage-Backed Securities 3,095,708 31,930 (23,915 ) 3,103,723 Total $ 3,982,736 $ 50,771 $ (27,095 ) $ 4,006,412 December 31, 2014 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 325,365 $ 5,933 $ (40 ) $ 331,258 Debt Securities Issued by States and Political Subdivisions 723,474 21,941 (1,445 ) 743,970 Debt Securities Issued by Corporations 298,272 546 (3,985 ) 294,833 Mortgage-Backed Securities: Residential - Government Agencies 452,493 10,986 (1,043 ) 462,436 Residential - U.S. Government-Sponsored Enterprises 276,390 2,262 (191 ) 278,461 Commercial - Government Agencies 186,813 — (8,581 ) 178,232 Total Mortgage-Backed Securities 915,696 13,248 (9,815 ) 919,129 Total $ 2,262,807 $ 41,668 $ (15,285 ) $ 2,289,190 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 498,767 $ 2,008 $ (1,159 ) $ 499,616 Debt Securities Issued by States and Political Subdivisions 249,559 15,459 — 265,018 Debt Securities Issued by Corporations 166,686 109 (3,442 ) 163,353 Mortgage-Backed Securities: Residential - Government Agencies 2,862,369 45,407 (20,636 ) 2,887,140 Residential - U.S. Government-Sponsored Enterprises 379,365 3,635 (15 ) 382,985 Commercial - Government Agencies 309,933 241 (3,791 ) 306,383 Total Mortgage-Backed Securities 3,551,667 49,283 (24,442 ) 3,576,508 Total $ 4,466,679 $ 66,859 $ (29,043 ) $ 4,504,495 The table below presents an analysis of the contractual maturities of the Company’s investment securities as of December 31, 2016 . 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 Fair Value Available-for-Sale: Due in One Year or Less $ 27,855 $ 27,963 Due After One Year Through Five Years 597,063 596,178 Due After Five Years Through Ten Years 267,948 272,249 Due After Ten Years 42,959 45,127 935,825 941,517 Debt Securities Issued by Government Agencies 406,928 408,176 Mortgage-Backed Securities: Residential - Government Agencies 240,412 243,844 Residential - U.S. Government-Sponsored Enterprises 511,234 506,987 Commercial - Government Agencies 89,544 85,517 Total Mortgage-Backed Securities 841,190 836,348 Total $ 2,183,943 $ 2,186,041 Held-to-Maturity: Due in One Year or Less $ 155,107 $ 155,104 Due After One Year Through Five Years 446,716 449,231 Due After Five Years Through Ten Years 257,018 261,732 Due After Ten Years 49,223 51,667 908,064 917,734 Mortgage-Backed Securities: Residential - Government Agencies 1,940,076 1,936,782 Residential - U.S. Government-Sponsored Enterprises 752,768 742,647 Commercial - Government Agencies 232,089 230,364 Total Mortgage-Backed Securities 2,924,933 2,909,793 Total $ 3,832,997 $ 3,827,527 Investment securities with carrying values of $2.4 billion , $2.5 billion , and $2.8 billion as of December 31, 2016 , 2015 , and 2014 , 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 years ended December 31, 2016 , 2015 , and 2014 . (dollars in thousands) 2016 2015 2014 Gross Gains on Sales of Investment Securities $ 11,180 $ 11,640 $ 8,063 Gross Losses on Sales of Investment Securities (977 ) (1,480 ) — Net Gains on Sales of Investment Securities $ 10,203 $ 10,160 $ 8,063 The losses during the year ended December 31, 2016 were due to fees paid to the counterparties of our prior Visa Class B share sale transactions. The securities sold for losses in 2015 were government agency commercial mortgage-backed securities categorized as available-for-sale. These securities were sold to reduce our allocation to the sector and did not represent an overall change in strategy. The income tax expense related to the Company’s net realized gains on the sales of investment securities was $4.0 million in 2016 and 2015 , and $3.2 million in 2014. 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 Fair Value Gross Fair Value Gross December 31, 2016 Available-for-Sales: 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 and Government Agencies $ 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 ) December 31, 2015 Available-for-Sales: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 144,260 $ (822 ) $ 5,452 $ (16 ) $ 149,712 $ (838 ) Debt Securities Issued by States and Political Subdivisions 72,248 (252 ) 6,798 (52 ) 79,046 (304 ) Debt Securities Issued by Corporations 101,269 (1,747 ) 162,304 (2,755 ) 263,573 (4,502 ) Mortgage-Backed Securities: Residential - Government Agencies 30,679 (130 ) 9,117 (1,137 ) 39,796 (1,267 ) Residential - U.S. Government-Sponsored Enterprises 346,603 (2,264 ) — — 346,603 (2,264 ) Commercial - Government Agencies — — 99,026 (4,200 ) 99,026 (4,200 ) Total Mortgage-Backed Securities 377,282 (2,394 ) 108,143 (5,337 ) 485,425 (7,731 ) Total $ 695,059 $ (5,215 ) $ 282,697 $ (8,160 ) $ 977,756 $ (13,375 ) Held-to-Maturity: Debt Securities Issued by the U.S. Treasury $ 264,747 $ (1,139 ) $ — $ — $ 264,747 $ (1,139 ) Debt Securities Issued by Corporations 28,218 (66 ) 71,208 (1,975 ) 99,426 (2,041 ) Mortgage-Backed Securities: Residential - Government Agencies 562,502 (5,828 ) 414,207 (13,239 ) 976,709 (19,067 ) Residential - U.S. Government-Sponsored Enterprises 450,147 (2,616 ) — — 450,147 (2,616 ) Commercial - Government Agencies 74,040 (958 ) 52,207 (1,274 ) 126,247 (2,232 ) Total Mortgage-Backed Securities 1,086,689 (9,402 ) 466,414 (14,513 ) 1,553,103 (23,915 ) Total $ 1,379,654 $ (10,607 ) $ 537,622 $ (16,488 ) $ 1,917,276 $ (27,095 ) The Company does not believe that the investment securities that were in an unrealized loss position as of December 31, 2016 , which were comprised of 307 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 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 bases, which may be at maturity. Interest income from taxable and non-taxable investment securities for the years ended December 31, 2016 , 2015 , and 2014 were as follows: Year Ended December 31, (dollars in thousands) 2016 2015 2014 Taxable $ 100,541 $ 109,912 $ 127,128 Non-Taxable 20,438 21,230 21,207 Total Interest Income from Investment Securities $ 120,979 $ 131,142 $ 148,335 As of December 31, 2016 , included in the Company’s investment securities portfolio were debt securities issued by political subdivisions within the State of Hawaii of $521.8 million , representing 56% 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, 77% were general obligation issuances. As of December 31, 2016 , 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 December 31, 2016 and 2015 , the carrying value of the Company’s Federal Home Loan Bank of Des Moines (“FHLB Des Moines”) stock and Federal Reserve Bank stock was as follows: December 31, (dollars in thousands) 2016 2015 Federal Home Loan Bank Stock $ 20,000 $ 19,000 Federal Reserve Bank Stock 20,063 19,836 Total $ 40,063 $ 38,836 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 by 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 December 31, 2016 , the conversion ratio was 1.6483 . During the first quarter of 2016, the Company recorded an $11.2 million net gain on the sale of 100,000 Visa Class B shares. Concurrent with this sale, the Company 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 180,914 Class B shares ( 298,201 Class A equivalents) that the Company owns as of December 31, 2016 are carried at a zero cost basis.

Loans and Leases and the Allowa

Loans and Leases and the Allowance for Loan and Lease Losses	12 Months Ended
	Dec. 31, 2016
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 The Company’s loan and lease portfolio was comprised of the following as of December 31, 2016 and 2015 : December 31, (dollars in thousands) 2016 2015 Commercial Commercial and Industrial $ 1,249,791 $ 1,115,168 Commercial Mortgage 1,889,551 1,677,147 Construction 270,018 156,660 Lease Financing 208,332 204,877 Total Commercial 3,617,692 3,153,852 Consumer Residential Mortgage 3,163,073 2,925,605 Home Equity 1,334,163 1,069,400 Automobile 454,333 381,735 Other 1 380,524 348,393 Total Consumer 5,332,093 4,725,133 Total Loans and Leases $ 8,949,785 $ 7,878,985 1 Comprised of other revolving credit, installment, and lease financing. Total loans and leases were reported net of unearned income of $36.3 million and $47.3 million as of December 31, 2016 and 2015 , respectively. Commercial loans and residential mortgage loans of $1.1 billion and $1.0 billion were pledged to secure an undrawn FRB line of credit as of December 31, 2016 and 2015 , respectively. As of December 31, 2016 and 2015 , residential mortgage loans of $2.3 billion and $1.7 billion , respectively, were pledged under a blanket pledge arrangement to secure FHLB advances. See Note 10 Other Debt for FHLB advances outstanding as of December 31, 2016 and 2015 . Net gains related to sales of residential mortgage loans, recorded as a component of mortgage banking income, were $11.8 million , $5.9 million , and $2.4 million for the years ended December 31, 2016 , 2015 , and 2014 , respectively. Net gains on sales of commercial loans were not material for the years ended December 31, 2016 , 2015 , and 2014 . Substantially all of the Company’s lending activity is with customers located in Hawaii. A substantial portion of the Company’s real estate loans are secured by real estate in Hawaii. Allowance for Loan and Lease Losses The following presents by portfolio segment, the activity in the Allowance for the years ended December 31, 2016 , 2015 , and 2014 . 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 December 31, 2016 , 2015 , and 2014 . (dollars in thousands) Commercial Consumer Total For the Year Ended December 31, 2016 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 60,714 $ 42,166 $ 102,880 Loans and Leases Charged-Off (865 ) (17,644 ) (18,509 ) Recoveries on Loans and Leases Previously Charged-Off 8,137 7,015 15,152 Net Loans and Leases Recovered (Charged-Off) 7,272 (10,629 ) (3,357 ) Provision for Credit Losses (2,306 ) 7,056 4,750 Balance at End of Period $ 65,680 $ 38,593 $ 104,273 As of December 31, 2016 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 45 $ 3,510 $ 3,555 Collectively Evaluated for Impairment 65,635 35,083 100,718 Total $ 65,680 $ 38,593 $ 104,273 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 21,572 $ 39,126 $ 60,698 Collectively Evaluated for Impairment 3,596,120 5,292,967 8,889,087 Total $ 3,617,692 $ 5,332,093 $ 8,949,785 For the Year Ended December 31, 2015 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 64,551 $ 44,137 $ 108,688 Loans and Leases Charged-Off (954 ) (15,485 ) (16,439 ) Recoveries on Loans and Leases Previously Charged-Off 2,173 7,458 9,631 Net Loans and Leases Recovered (Charged-Off) 1,219 (8,027 ) (6,808 ) Provision for Credit Losses (5,056 ) 6,056 1,000 Balance at End of Period $ 60,714 $ 42,166 $ 102,880 As of December 31, 2015 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 205 $ 3,373 $ 3,578 Collectively Evaluated for Impairment 60,509 38,793 99,302 Total $ 60,714 $ 42,166 $ 102,880 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 27,950 $ 38,747 $ 66,697 Collectively Evaluated for Impairment 3,125,902 4,686,386 7,812,288 Total $ 3,153,852 $ 4,725,133 $ 7,878,985 For the Year Ended December 31, 2014 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 71,446 $ 44,008 $ 115,454 Loans and Leases Charged-Off (2,068 ) (13,371 ) (15,439 ) Recoveries on Loans and Leases Previously Charged-Off 4,721 8,816 13,537 Net Loans and Leases Recovered (Charged-Off) 2,653 (4,555 ) (1,902 ) Provision for Credit Losses (9,548 ) 4,684 (4,864 ) Balance at End of Period $ 64,551 $ 44,137 $ 108,688 As of December 31, 2014 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 2,387 $ 3,561 $ 5,948 Collectively Evaluated for Impairment 62,164 40,576 102,740 Total $ 64,551 $ 44,137 $ 108,688 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 25,116 $ 39,631 $ 64,747 Collectively Evaluated for Impairment 2,803,012 4,029,830 6,832,842 Total $ 2,828,128 $ 4,069,461 $ 6,897,589 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 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. 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 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 December 31, 2016 and 2015 . December 31, 2016 (dollars in thousands) Commercial Commercial Construction Lease Total 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 Home Automobile Other 1 Total 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 December 31, 2015 (dollars in thousands) Commercial Commercial Construction Lease Total Pass $ 1,059,475 $ 1,591,696 $ 154,976 $ 204,348 $ 3,010,495 Special Mention 28,076 43,674 80 76 71,906 Classified 27,617 41,777 1,604 453 71,451 Total $ 1,115,168 $ 1,677,147 $ 156,660 $ 204,877 $ 3,153,852 (dollars in thousands) Residential Home Automobile Other 1 Total Pass $ 2,910,667 $ 1,064,253 $ 381,420 $ 347,710 $ 4,704,050 Classified 14,938 5,147 315 683 21,083 Total $ 2,925,605 $ 1,069,400 $ 381,735 $ 348,393 $ 4,725,133 Total Recorded Investment in Loans and Leases $ 7,878,985 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 December 31, 2016 and 2015 . (dollars in thousands) 30 - 59 60 - 89 Past Due Non- Total Current Total Loans Non-Accrual 2 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 As of December 31, 2015 Commercial Commercial and Industrial $ 1,118 $ 359 $ — $ 5,829 $ 7,306 $ 1,107,862 $ 1,115,168 $ 452 Commercial Mortgage 1,245 27 — 3,469 4,741 1,672,406 1,677,147 2,890 Construction 2,120 — — — 2,120 154,540 156,660 — Lease Financing — — — — — 204,877 204,877 — Total Commercial 4,483 386 — 9,298 14,167 3,139,685 3,153,852 3,342 Consumer Residential Mortgage 7,148 3,993 4,453 14,598 30,192 2,895,413 2,925,605 2,056 Home Equity 3,856 1,906 1,710 4,081 11,553 1,057,847 1,069,400 1,710 Automobile 8,103 1,803 315 — 10,221 371,514 381,735 — Other 1 2,281 1,448 1,096 — 4,825 343,568 348,393 — Total Consumer 21,388 9,150 7,574 18,679 56,791 4,668,342 4,725,133 3,766 Total $ 25,871 $ 9,536 $ 7,574 $ 27,977 $ 70,958 $ 7,808,027 $ 7,878,985 $ 7,108 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 December 31, 2016 and 2015 . (dollars in thousands) Recorded Unpaid Related 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 December 31, 2015 Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 14,650 $ 28,212 $ — Commercial Mortgage 10,407 13,907 — Construction 1,604 1,604 — Total Commercial 26,661 43,723 — Total Impaired Loans with No Related Allowance Recorded $ 26,661 $ 43,723 $ — Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 1,289 $ 1,289 $ 205 Total Commercial 1,289 1,289 205 Consumer Residential Mortgage 28,981 34,694 3,171 Home Equity 1,089 1,089 12 Automobile 7,012 7,012 143 Other 1 1,665 1,665 47 Total Consumer 38,747 44,460 3,373 Total Impaired Loans with an Allowance Recorded $ 40,036 $ 45,749 $ 3,578 Impaired Loans: Commercial $ 27,950 $ 45,012 $ 205 Consumer 38,747 44,460 3,373 Total Impaired Loans $ 66,697 $ 89,472 $ 3,578 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 years ended December 31, 2016 and 2015 . Year Ended Year Ended (dollars in thousands) Average Interest Average Interest Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 10,760 $ 463 $ 12,589 $ 406 Commercial Mortgage 9,906 339 7,521 268 Construction 1,559 101 1,647 106 Total Commercial 22,225 903 21,757 780 Total Impaired Loans with No Related Allowance Recorded $ 22,225 $ 903 $ 21,757 $ 780 Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 939 $ 72 $ 5,379 $ 98 Commercial Mortgage 151 9 — — Total Commercial 1,090 81 5,379 98 Consumer Residential Mortgage 27,436 962 30,895 1,133 Home Equity 1,395 66 1,137 42 Automobile 7,974 522 5,992 432 Other 1 2,003 174 1,198 111 Total Consumer 38,808 1,724 39,222 1,718 Total Impaired Loans with an Allowance Recorded $ 39,898 $ 1,805 $ 44,601 $ 1,816 Impaired Loans: Commercial $ 23,315 $ 984 $ 27,136 $ 878 Consumer 38,808 1,724 39,222 1,718 Total Impaired Loans $ 62,123 $ 2,708 $ 66,358 $ 2,596 1 Comprised of other revolving credit and installment financing. For the year ended December 31, 2014 , the average recorded investment in impaired loans was $68.1 million and the interest income recognized on impaired loans was $2.3 million . For the years ended December 31, 2016 , 2015 , and 2014 , the amount of interest income recognized by the Company within the period that the loans were impaired were primarily related to loans modified in a troubled debt restructuring that were on accrual status. For the years ended December 31, 2016 , 2015 , and 2014 , the amount of interest income recognized using a cash-basis method of accounting during the time within that period 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 $60.0 million and $65.0 million as of December 31, 2016 and 2015 , respectively. As of December 31, 2016 , there were $0.4 million commitments to lend additional funds on loans modified in a TDR. As of December 31, 2015 , there were no 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 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 commercial and consumer 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 years ended December 31, 2016 and 2015 . Loans Modified as a TDR for the Loans Modified as a TDR for the Troubled Debt Restructurings (dollars in thousands ) Number of Recorded 1 Increase in Number of Recorded 1 Increase in Commercial Commercial and Industrial 6 $ 3,525 $ 21 30 $ 5,414 $ 1 Commercial Mortgage 1 204 20 4 4,307 — Total Commercial 7 3,729 41 34 9,721 1 Consumer Residential Mortgage 10 3,146 522 13 4,255 99 Home Equity 2 651 7 3 367 4 Automobile 267 5,451 116 170 3,996 81 Other 2 199 1,404 37 168 1,099 31 Total Consumer 478 10,652 682 354 9,717 215 Total 485 $ 14,381 $ 723 388 $ 19,438 $ 216 1 The period end balances reflect all partial 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, loans modified in a TDR that defaulted during the year ended December 31, 2016 and 2015 , 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. Year Ended December 31, 2016 Year Ended December 31, 2015 TDRs that Defaulted During the Period, (dollars in thousands) Number of Recorded 1 Number of Recorded 1 Commercial Commercial and Industrial — $ — 2 $ 4,924 Total Commercial — — 2 4,924 Consumer Residential Mortgage 4 1,445 4 1,449 Home Equity 1 157 — — Automobile 19 373 10 220 Other 2 40 278 21 118 Total Consumer 64 2,253 35 1,787 Total 64 $ 2,253 37 $ 6,711 1 The period end balances reflect all partial 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. Loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default. If a loan modified in a TDR subsequently defaults, 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 $6.6 million as of December 31, 2016 .

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2016
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 $2.7 billion as of December 31, 2016 and 2015 , and $2.9 billion as of December 31, 2014 . 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 21 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 $6.9 million , $7.2 million , and $7.9 million for the years ended December 31, 2016 , 2015 , and 2014 , respectively. 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 years ended December 31, 2016 , 2015 , and 2014 , the change in the fair value of the Company’s mortgage servicing rights accounted for under the fair value measurement method was as follows: (dollars in thousands) 2016 2015 2014 Balance at Beginning of Year $ 1,970 $ 2,604 $ 3,826 Changes in Fair Value: Due to Change in Valuation Assumptions 1 — (251 ) (869 ) Due to Payoffs (315 ) (383 ) (353 ) Total Changes in Fair Value of Mortgage Servicing Rights (315 ) (634 ) (1,222 ) Balance at End of Year $ 1,655 $ 1,970 $ 2,604 1 Primarily represents changes in discount rates and loan repayment rate assumptions, mostly due to changes in interest rates. For the years ended December 31, 2016 , 2015 , and 2014 , 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: (dollars in thousands) 2016 2015 2014 Balance at Beginning of Year $ 21,032 $ 22,091 $ 24,297 Servicing Rights that Resulted From Asset Transfers 3,847 1,737 747 Amortization (2,892 ) (2,832 ) (2,896 ) Valuation Allowance Recovery (Provision) 21 36 (57 ) Balance at End of Year $ 22,008 $ 21,032 $ 22,091 Valuation Allowance: Balance at Beginning of Year $ (21 ) $ (57 ) $ — Valuation Allowance Recovery (Provision) 21 36 (57 ) Balance at End of Year $ — $ (21 ) $ (57 ) Fair Value: Balance at Beginning of Year $ 24,804 $ 22,837 $ 30,100 Balance at End of Year $ 25,148 $ 24,804 $ 22,837 The key data and assumptions used in estimating the fair value of the Company’s mortgage servicing rights as of December 31, 2016 and 2015 were as follows: December 31, 2016 2015 Weighted-Average Constant Prepayment Rate 1 8.13 % 9.10 % Weighted-Average Life (in years) 7.43 7.40 Weighted-Average Note Rate 4.10 % 4.23 % Weighted-Average Discount Rate 2 9.33 % 9.38 % 1 Represents annualized loan prepayment 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 December 31, 2016 and 2015 is presented in the following table. December 31, (dollars in thousands) 2016 2015 Constant Prepayment Rate Decrease in fair value from 25 basis points (“bps”) adverse change $ (321 ) $ (285 ) Decrease in fair value from 50 bps adverse change (636 ) (566 ) Discount Rate Decrease in fair value from 25 bps adverse change (288 ) (292 ) Decrease in fair value from 50 bps adverse change (570 ) (577 ) 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.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Premises and Equipment	The components of the Company’s premises and equipment as of December 31, 2016 and 2015 were as follows: (dollars in thousands) Cost Accumulated Net Book Value December 31, 2016 Premises $ 321,144 $ (240,567 ) $ 80,577 Equipment 117,356 (87,021 ) 30,335 Capital Leases 6,594 (4,001 ) 2,593 Total $ 445,094 $ (331,589 ) $ 113,505 December 31, 2015 Premises $ 322,552 $ (238,912 ) $ 83,640 Equipment 111,071 (86,176 ) 24,895 Capital Leases 6,593 (3,929 ) 2,664 Total $ 440,216 $ (329,017 ) $ 111,199 Depreciation and amortization (including capital lease amortization) included in noninterest expense was $12.9 million , $12.8 million , and $12.4 million for the years ended December 31, 2016 , 2015 , and 2014 , respectively. There was no impairment of the Company’s premises and equipment for the years ended December 31, 2016 , 2015 and 2014 .

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	The components of the Company’s other assets as of December 31, 2016 and 2015 were as follows: December 31, (dollars in thousands) 2016 2015 Federal Home Loan Bank and Federal Reserve Bank Stock $ 40,063 $ 38,836 Derivative Financial Instruments 13,731 13,967 Low-Income Housing and Other Equity Investments 78,900 79,033 Deferred Compensation Plan Assets 21,952 20,262 Prepaid Expenses 7,355 8,262 Accounts Receivable 12,584 12,539 Other 20,123 26,493 Total Other Assets $ 194,708 $ 199,392

Deposits

Deposits	12 Months Ended
	Dec. 31, 2016
Deposits [Abstract]
Deposits	Time Deposits As of December 31, 2016 and 2015 , the Company’s total time deposits were $1.2 billion . As of December 31, 2016 , the contractual maturities of these time deposits were as follows: (dollars in thousands) Amount 2017 $ 865,027 2018 167,782 2019 52,324 2020 20,012 2021 101,904 Thereafter 10,658 Total $ 1,217,707 The amount of time deposits with balances of $100,000 or more was $1.0 billion and $0.9 billion as of December 31, 2016 and 2015 , respectively. As of December 31, 2016 , the contractual maturities of these time deposits were as follows: (dollars in thousands) Amount Three Months or Less $ 268,865 Over Three Months through Six Months 282,130 Over Six Months through Twelve Months 186,157 Over Twelve Months 234,405 Total $ 971,557 Public Deposits As of December 31, 2016 and 2015 , deposits of governmental entities of $1.1 billion and $1.2 billion , respectively, required collateralization by acceptable investment securities of the Company.

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2016
Borrowings Disclosure Abstract
Borrowings	Borrowings Details of the Company’s short-term borrowings (original term of one year or less) as of December 31, 2016 and 2015 were as follows: December 31, (dollars in thousands) 2016 2015 Funds Purchased 1 Amounts Outstanding $ 9,616 $ 7,333 Weighted-Average Interest Rate 0.15 % 0.14 % Securities Sold Under Agreements to Repurchase (short-term) 2 Amounts Outstanding $ 23,278 $ 3,992 Weighted-Average Interest Rate 0.31 % 0.06 % 1 Federal funds purchased generally mature on the next business day following the date of purchase. 2 Consists entirely of repurchase agreements with government entities. Excludes long-term repurchase agreements with government entities of $0.1 million and $49.9 million as of December 31, 2016 , and 2015 , respectively, and long-term repurchase agreements with private institutions of $500.0 million and $575.0 million as of December 31, 2016 and 2015 , respectively. The Company’s total securities sold under agreements to repurchase were $523.4 million and $628.9 million as of December 31, 2016 and 2015 , respectively. As of December 31, 2016 , all of our repurchase agreements were at fixed interest rates. As of December 31, 2016 , long-term repurchase agreements (original term over one year) placed with government entities were $0.1 million with a weighted-average interest rate of 0.15% and a weighted-average maturity of 4 days. As of December 31, 2016 , long-term repurchase agreements placed with private institutions were $500.0 million with a weighted-average interest rate of 4.14% . Remaining terms ranged from 2018 to 2022 with a weighted-average maturity of 3.0 years. Some of our repurchase agreements with private institutions may be terminated at earlier specified dates by the private institution or in some cases by either the private institution or the Company. If all such agreements were to terminate at the earliest possible date, the weighted-average maturity for our repurchase agreements with private institutions would decrease to 1.6 years.

Other Debt

Other Debt	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Other Debt	The Company’s other debt as of December 31, 2016 and 2015 were as follows: December 31, (dollars in thousands) 2016 2015 Federal Home Loan Bank Advances $ 250,000 $ 225,000 Non-Recourse Debt 7,153 9,938 Capital Lease Obligations 10,785 10,848 Total $ 267,938 $ 245,786 As a member of the FHLB, the Bank may borrow funds from the FHLB in amounts up to 35% of the Bank’s total assets, provided the Bank is able to pledge an adequate amount of qualified assets to secure the borrowings. As of December 31, 2016 , FHLB advances totaled $250.0 million with a weighted-average interest rate of 1.28% and maturity dates ranging from 2018 to 2020. As of December 31, 2016 , the Company had a remaining line of credit with the FHLB of $1.7 billion . See Note 4 Loans and Leases and the Allowance for Loan and Lease Losses for loans pledged to the FHLB as of December 31, 2016 and 2015 . As of December 31, 2016 , the Company’s non-recourse debt was bearing interest at a fixed rate of 6.3% with maturity in June 2021. Capital lease obligations relate to office space at the Company’s headquarters. The lease began in 1993 and has a 60 year term. Lease payments are fixed at $0.8 million per year through December 2022 (one-time inflation adjustment on January 1, 2018) and are negotiable thereafter. As of December 31, 2016 , the Company had an undrawn line of credit with the FRB of $625.7 million . See Note 4 Loans and Leases and the Allowance for Loan and Lease Losses for loans pledged to the FRB as of December 31, 2016 and 2015 . As of December 31, 2016 , the annual maturities of the Company’s other debt, exclusive of capital lease obligations, were expected to be as follows: (dollars in thousands) Amount 2017 $ — 2018 175,000 2019 50,000 2020 28,464 2021 3,689 Thereafter — Total $ 257,153

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Shareholders' Equity	Shareholders’ Equity Regulatory Capital The table below sets forth the minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts and ratios for the Company and the Bank as of December 31, 2016 and 2015 : (dollars in thousands) Well Capitalized Company Bank As of December 31, 2016 Shareholders’ Equity $ 1,161,537 $ 1,094,461 Common Equity Tier 1 Capital 1,168,228 1,111,525 Tier 1 Capital 1,168,228 1,111,525 Total Capital 1,278,528 1,221,683 Common Equity Tier 1 Capital Ratio 6.5 % 13.24 % 12.61 % Tier 1 Capital Ratio 8.0 % 13.24 % 12.61 % Total Capital Ratio 10.0 % 14.49 % 13.86 % Tier 1 Leverage Ratio 5.0 % 7.21 % 6.86 % As of December 31, 2015 Shareholders’ Equity $ 1,116,260 $ 1,036,355 Common Equity Tier 1 Capital 1,112,598 1,043,070 Tier 1 Capital 1,112,598 1,043,070 Total Capital 1,212,245 1,142,573 Common Equity Tier 1 Capital Ratio 6.5 % 13.97 % 13.12 % Tier 1 Capital Ratio 8.0 % 13.97 % 13.12 % Total Capital Ratio 10.0 % 15.22 % 14.37 % Tier 1 Leverage Ratio 5.0 % 7.26 % 6.81 % The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can result in certain mandatory, and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classifications are also subject to qualitative judgments by regulators about the components of regulatory capital, risk weightings, and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios of Common Equity Tier 1, Tier 1 and Total Capital. Both Common Equity Tier 1 Capital and Tier 1 Capital are common shareholders’ equity, reduced by certain intangible assets, postretirement benefit liability adjustments, and unrealized gains and losses on investment securities. Total Capital is Tier 1 Capital plus an allowable amount of the reserve for credit losses. Risk-weighted assets are calculated by taking assets and credit equivalent amounts of off-balance-sheet items and assigning them to one of several broad risk categories. Four capital ratios are used to measure capital adequacy: Common Equity Tier 1 Capital divided by risk-weighted assets, as defined; Tier 1 Capital divided by risk-weighted assets; Total Capital divided by risk-weighted assets; and the Tier 1 Leverage ratio, which is Tier 1 Capital divided by quarterly adjusted average total assets. As of December 31, 2016 , the Company and the Bank were well capitalized as defined in the regulatory framework for prompt corrective action. There were no conditions or events since December 31, 2016 that management believes have changed the Company or the Bank’s capital classifications. Dividends Dividends paid by the Parent are substantially funded from dividends received from the Bank. The Bank is subject to federal and state regulatory restrictions that limit cash dividends and loans to the Parent. These restrictions generally require advanced approval from the Bank’s regulator for payment of dividends in excess of the sum of net income for the current calendar year and the retained net income of the prior two calendar years. Common Stock Repurchase Program The Parent has a common stock repurchase program in which shares repurchased are held in treasury stock for reissuance in connection with share-based compensation plans and for general corporate purposes. For the year ended December 31, 2016 , the Parent repurchased 847,964 shares of common stock under its share repurchase program at an average cost per share of $68.42 and a total cost of $58.0 million . From the beginning of the stock repurchase program in July 2001 through December 31, 2016 , the Parent repurchased a total of 53.6 million shares of common stock at an average cost of $37.84 per share and a total cost of $2.0 billion . From January 1, 2017 through February 15, 2017 , the Parent repurchased an additional 51,500 shares of common stock at an average cost of $86.39 per share for a total of $4.4 million . The actual amount and timing of future share repurchases, if any, will depend on market conditions, applicable SEC rules and various other factors. Accumulated Other Comprehensive Income The following table presents the components of other comprehensive income (loss), net of tax: (dollars in thousands) Before Tax Tax Effect Net of Tax Year Ended December 31, 2016 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ (18,647 ) $ (7,358 ) $ (11,289 ) 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 1,605 634 971 Net Unrealized Gains (Losses) on Investment Securities (17,042 ) (6,724 ) (10,318 ) Defined Benefit Plans: Net Actuarial Gains (Losses) Arising During the Period (954 ) (377 ) (577 ) Amortization of Net Actuarial Losses (Gains) 1,224 483 741 Amortization of Prior Service Credit (322 ) (127 ) (195 ) Defined Benefit Plans, Net (52 ) (21 ) (31 ) Other Comprehensive Income (Loss) $ (17,094 ) $ (6,745 ) $ (10,349 ) Year Ended December 31, 2015 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ (5,448 ) $ (2,138 ) $ (3,310 ) Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: (Gain) Loss on Sale (190 ) (75 ) (115 ) Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 2,136 836 1,300 Net Unrealized Gains (Losses) on Investment Securities (3,502 ) (1,377 ) (2,125 ) Defined Benefit Plans: Net Actuarial Gains (Losses) Arising During the Period 7,335 2,869 4,466 Amortization of Net Actuarial Losses (Gains) 1,624 641 983 Amortization of Prior Service Credit (322 ) (127 ) (195 ) Defined Benefit Plans, Net 8,637 3,383 5,254 Other Comprehensive Income (Loss) $ 5,135 $ 2,006 $ 3,129 Year Ended December 31, 2014 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ 28,609 $ 11,286 $ 17,323 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: (Gain) Loss on Sale (64 ) (25 ) (39 ) Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 (703 ) (277 ) (426 ) Net Unrealized Gains (Losses) on Investment Securities 27,842 10,984 16,858 Defined Benefit Plans: Net Actuarial Gains (Losses) Arising During the Period (20,286 ) (8,000 ) (12,286 ) Amortization of Net Actuarial Losses (Gains) 1,256 496 760 Amortization of Prior Service Credit (322 ) (127 ) (195 ) Defined Benefit Plans, Net (19,352 ) (7,631 ) (11,721 ) Other Comprehensive Income (Loss) $ 8,490 $ 3,353 $ 5,137 1 The amount relates to the amortization/accretion of unrealized 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: (dollars in thousands) Investment Securities-Available-For-Sale Investment Securities-Held-To-Maturities Defined Benefit Plans Accumulated Other Comprehensive Income (Loss) Year Ended December 31, 2016 Balance at Beginning of Period $ 12,559 $ (7,255 ) $ (28,861 ) $ (23,557 ) Other Comprehensive Income (Loss) Before Reclassifications (11,289 ) — (577 ) (11,866 ) Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) — 971 546 1,517 Total Other Comprehensive Income (Loss) (11,289 ) 971 (31 ) (10,349 ) Balance at End of Period $ 1,270 $ (6,284 ) $ (28,892 ) $ (33,906 ) Year Ended December 31, 2015 Balance at Beginning Period $ 15,984 $ (8,555 ) $ (34,115 ) $ (26,686 ) Other Comprehensive Income (Loss) Before Reclassifications (3,310 ) — 4,466 1,156 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (115 ) 1,300 788 1,973 Total Other Comprehensive Income (Loss) (3,425 ) 1,300 5,254 3,129 Balance at End of Period $ 12,559 $ (7,255 ) $ (28,861 ) $ (23,557 ) Year Ended December 31, 2014 Balance at Beginning Period $ (1,300 ) $ (8,129 ) $ (22,394 ) $ (31,823 ) Other Comprehensive Income (Loss) Before Reclassifications 17,323 — (12,286 ) 5,037 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (39 ) (426 ) 565 100 Total Other Comprehensive Income (Loss) 17,284 (426 ) (11,721 ) 5,137 Balance at End of Period $ 15,984 $ (8,555 ) $ (34,115 ) $ (26,686 ) The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss): 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 (dollars in thousands) Year Ended December 31, 2016 2015 2014 Amortization of Unrealized Holding Gains (Losses) on Investment Securities Held-to-Maturity $ (1,605 ) $ (2,136 ) $ 703 Interest Income 634 836 (277 ) Provision for Income Tax (971 ) (1,300 ) 426 Net of Tax Sales of Investment Securities Available-for-Sale — 190 64 Investment Securities Gains (Losses), Net — (75 ) (25 ) Provision for Income Tax — 115 39 Net of Tax Amortization of Defined Benefit Plans Items Prior Service Credit 2 322 322 322 Net Actuarial Losses 2 (1,224 ) (1,624 ) (1,256 ) (902 ) (1,302 ) (934 ) Total Before Tax 356 514 369 Provision for Income Tax (546 ) (788 ) (565 ) Net of Tax Total Reclassifications for the Period $ (1,517 ) $ (1,973 ) $ (100 ) 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 14 Employee Benefits for additional details.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share There were no adjustments to net income, the numerator, for purposes of computing basic 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 years ended December 31, 2016 , 2015 , and 2014 : Weighted Average Shares 2016 2015 2014 Denominator for Basic Earnings Per Share 42,644,100 43,217,818 43,899,208 Dilutive Effect of Equity Based Awards 235,683 237,059 226,248 Denominator for Diluted Earnings Per Share 42,879,783 43,454,877 44,125,456 Antidilutive Stock Options and Restricted Stock Outstanding — — —

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2016
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 similar information for 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 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 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 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 retail insurance products. Products and services from Retail Banking are delivered to customers through 69 branch locations and 449 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 are offered to middle-market and large companies in Hawaii and the Pacific Islands. 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, government deposits, 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 years ended December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) Retail Commercial Investment Treasury Consolidated Year Ended December 31, 2016 Net Interest Income $ 242,967 $ 156,080 $ 24,714 $ (6,182 ) $ 417,579 Provision for Credit Losses 10,700 (7,322 ) (23 ) 1,395 4,750 Net Interest Income After Provision for Credit Losses 232,267 163,402 24,737 (7,577 ) 412,829 Noninterest Income 91,824 26,967 57,396 21,156 197,343 Noninterest Expense (208,389 ) (70,405 ) (59,782 ) (12,002 ) (350,578 ) Income Before Provision for Income Taxes 115,702 119,964 22,351 1,577 259,594 Provision for Income Taxes (41,067 ) (42,667 ) (8,270 ) 13,871 (78,133 ) Net Income $ 74,635 $ 77,297 $ 14,081 $ 15,448 $ 181,461 Total Assets as of December 31, 2016 $ 5,342,078 $ 3,565,912 $ 280,410 $ 7,303,967 $ 16,492,367 Year Ended December 31, 2015 Net Interest Income $ 202,259 $ 143,944 $ 18,494 $ 29,390 $ 394,087 Provision for Credit Losses 8,033 (1,165 ) (43 ) (5,825 ) 1,000 Net Interest Income After Provision for Credit Losses 194,226 145,109 18,537 35,215 393,087 Noninterest Income 82,391 22,191 58,835 22,802 186,219 Noninterest Expense (199,572 ) (77,500 ) (57,852 ) (13,180 ) (348,104 ) Income Before Provision for Income Taxes 77,045 89,800 19,520 44,837 231,202 Provision for Income Taxes (27,330 ) (31,375 ) (7,222 ) (4,571 ) (70,498 ) Net Income $ 49,715 $ 58,425 $ 12,298 $ 40,266 $ 160,704 Total Assets as of December 31, 2015 $ 4,680,888 $ 3,099,175 $ 274,469 $ 7,400,484 $ 15,455,016 Year Ended December 31, 2014 Net Interest Income $ 178,480 $ 119,655 $ 15,238 $ 66,283 $ 379,656 Provision for Credit Losses 4,783 (2,369 ) (313 ) (6,965 ) (4,864 ) Net Interest Income After Provision for Credit Losses 173,697 122,024 15,551 73,248 384,520 Noninterest Income 79,562 24,021 57,618 18,816 180,017 Noninterest Expense (196,254 ) (67,078 ) (54,571 ) (8,996 ) (326,899 ) Income Before Provision for Income Taxes 57,005 78,967 18,598 83,068 237,638 Provision for Income Taxes (21,079 ) (26,977 ) (6,894 ) (19,646 ) (74,596 ) Net Income $ 35,926 $ 51,990 $ 11,704 $ 63,422 $ 163,042 Total Assets as of December 31, 2014 $ 4,088,878 $ 2,787,611 $ 202,645 $ 7,708,074 $ 14,787,208

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Employee Benefits	Employee Benefits The Company has defined contribution plans, defined benefit plans, and a postretirement benefit plan. Defined Contribution Plans The Bank of Hawaii Retirement Savings Plan (the “Savings Plan”) has three Company contribution components in addition to employee contributions: 1) 401(k) matching, as described below; 2) a 3% fixed amount based on eligible compensation; and 3) a discretionary value-sharing contribution. Under the 401(k) matching component, participating employees may contribute up to 50% of their eligible compensation (within federal limits) to the Savings Plan. The Company makes matching contributions on behalf of participants equal to $1.25 for each $1.00 contributed by participants, up to 2% of the participants’ eligible compensation, and $0.50 for every $1.00 contributed by participants over 2% , up to 5% of the participants’ eligible compensation. A 3% fixed contribution and a discretionary value-sharing contribution, that is linked to the Company’s financial goals, are made regardless of whether the participating employee contributes to the Savings Plan and are invested in accordance with the participant’s selection of investment options available under the Savings Plan. The Company also has a non-qualified savings plan which covers certain employees with compensation exceeding Internal Revenue Service (“IRS”) limits on pay amounts in the allocation of the Savings Plan’s benefits. Total expense for all components of the Company’s defined contribution plans was $12.8 million , $12.0 million , and $12.1 million for the years ended December 31, 2016 , 2015 , and 2014 , respectively. Defined Benefit Plans The Company has two defined benefit plans (the “Pension Plans”). In 1995, the Company froze its non-contributory, qualified defined benefit retirement plan (the “Retirement Plan”) and the excess retirement plan (the “Excess Plan”), which covered employees of the Company and participating subsidiaries who met certain eligibility requirements. Beginning January 1, 2001, the Pension Plans no longer provided for compensation increases in the determination of benefits. The projected benefit obligation is equal to the accumulated benefit obligation due to the frozen status of the Pension Plans. The assets of the Retirement Plan primarily consist of equity and fixed income mutual funds. The Excess Plan is a non-qualified excess retirement benefit plan which covers certain employees of the Company and participating subsidiaries with compensation exceeding IRS limits on pay amounts applicable to the Pension Plan’s benefit formula. The Excess Plan has no plan assets. The Excess Plan’s projected benefit obligation and accumulated benefit obligation were $4.0 million and $4.1 million as of December 31, 2016 and 2015 , respectively. Postretirement Benefit Plan The Company’s postretirement benefit plan provides retirees hired before January 1, 2012 with medical and dental insurance coverage. For eligible participants that retired before 2008 and met certain age requirements, the Company and retiree share in the cost of providing postretirement benefits where both the employer and retirees pay a portion of the insurance premiums. Eligible participants who retired before 2008 who did not meet certain age requirements continued on the Company’s benefit plans, but pay for their full insurance premiums. Participants who retired on or after January 1, 2008, who had medical or dental coverage under the Company’s plans immediately before retirement and meet certain age and years of service requirements as of December 31, 2008 are also eligible to participate in the Company’s benefit plans, but must pay for their full insurance premiums. Retirees age 65 and older are provided with a Medicare supplemental plan subsidy. Most employees of the Company who have met certain eligibility requirements are covered by this plan. Participants who retired on or after January 1, 2008 who met certain age and/or years of service requirements are eligible for the Health Reimbursement Account (“HRA”) program. The HRA program provides retirees with an initial credit based on years of service. Thereafter, an annual credit up to a maximum of $1,200 is provided into the HRA. The retiree may use the HRA for medical, vision, prescription drug and dental premiums, co-payments, and medically necessary health care expenses that are not covered by any medical or dental insurance program or flexible health spending account. As of December 31, 2016 and 2015 , the Company had no segregated assets to provide for postretirement benefits. The following table provides a reconciliation of changes in benefit obligation and fair value of plan assets, as well as the funded status recognized in the Company’s consolidated statements of condition for the Pension Plans and postretirement benefit plan for the years ended December 31, 2016 and 2015 . Pension Benefits Postretirement Benefits (dollars in thousands) 2016 2015 2016 2015 Benefit Obligation at Beginning of Year $ 105,993 $ 114,707 $ 25,307 $ 30,804 Service Cost — — 513 621 Interest Cost 4,882 4,655 1,134 1,155 Actuarial Losses (Gains) 2,708 (7,647 ) (1,846 ) (5,783 ) Employer Benefits Paid 1 (5,990 ) (5,722 ) (800 ) (1,490 ) Benefit Obligation at End of Year $ 107,593 $ 105,993 $ 24,308 $ 25,307 Fair Value of Plan Assets at Beginning of Year $ 83,858 $ 90,154 $ — $ — Actual Return on Plan Assets 5,031 (1,058 ) — — Employer Contributions 484 484 800 1,490 Employer Benefits Paid 1 (5,990 ) (5,722 ) (800 ) (1,490 ) Fair Value of Plan Assets at End of Year $ 83,383 $ 83,858 $ — $ — Funded Status at End of Year 2 $ (24,210 ) $ (22,135 ) $ (24,308 ) $ (25,307 ) 1 Participants' contributions relative to the postretirement benefit plan were offset against employer benefits paid in the table above. Participants' contributions for postretirement benefits were $0.8 million and $0.6 million for the years ended December 31, 2016 and 2015 , respectively. 2 Amounts are recognized in Retirement Benefits Payable in the consolidated statements of condition. The following presents the amounts recognized in the Company’s accumulated other comprehensive income for the Pension Plans and postretirement benefit plan as of December 31, 2016 and 2015 . Pension Benefits Postretirement Benefits (dollars in thousands) 2016 2015 2016 2015 Amounts Recognized in Accumulated Other Net Actuarial Gains (Losses) $ (33,954 ) $ (33,239 ) $ 4,647 $ 3,768 Net Prior Service Credit — — 415 610 Total Amounts Recognized in Accumulated Other $ (33,954 ) $ (33,239 ) $ 5,062 $ 4,378 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 years ended December 31, 2016 , 2015 , and 2014 . Pension Benefits Postretirement Benefits (dollars in thousands) 2016 2015 2014 2016 2015 2014 Service Cost $ — $ — $ — $ 513 $ 621 $ 586 Interest Cost 4,882 4,655 4,975 1,134 1,155 1,325 Expected Return on Plan Assets (5,121 ) (5,222 ) (5,100 ) — — — Amortization of: Prior Service Credit 1 — — — (322 ) (322 ) (322 ) Net Actuarial Losses (Gains) 1 1,617 1,713 1,408 (393 ) (89 ) (152 ) Net Periodic Benefit Cost $ 1,378 $ 1,146 $ 1,283 $ 932 $ 1,365 $ 1,437 1 Represents reclassification adjustments from accumulated other comprehensive income during the period. The estimated net actuarial loss related to the Company’s Pension Plans that is expected to be amortized from accumulated other comprehensive income into net periodic benefit cost for the year ending December 31, 2017 is approximately $1.7 million . The estimated net actuarial gain and prior service credit related to the Company’s postretirement benefit plan that is expected to be amortized from accumulated other comprehensive income into net periodic benefit cost for the year ending December 31, 2017 is approximately $0.8 million . Assumptions used to determine the benefit obligations as of December 31, 2016 and 2015 for the Company’s Pension Plans and postretirement benefit plan were as follows: Pension Benefits Postretirement Benefits 2016 2015 2016 2015 Weighted Average Assumptions as of December 31: Discount Rate 4.45 % 4.70 % 4.57 % 4.74 % Health Care Cost Trend Rate Assumed For Next Year — — 6.50 % 6.70 % The health care cost trend rate is assumed to decrease annually, until reaching the ultimate trend rate of 4.5% in 2036 . Assumptions used to determine the net periodic benefit cost for the Company’s Pension Plans and postretirement benefit plan for the years ended December 31, 2016 , 2015 , and 2014 were as follows: Pension Benefits Postretirement Benefits 2016 2015 2014 2016 2015 2014 Weighted Average Assumptions as of December 31: Discount Rate 4.70 % 4.25 % 5.22 % 4.74 % 4.28 % 5.22 % Expected Long-Term Rate of Return on Plan Assets 6.00 % 6.00 % 6.00 % — — — Health Care Cost Trend Rate — — — 6.70 % 7.00 % 7.20 % A combination of factors is used by management in determining the expected long-term rate of return on plan assets. Historical return experience for major asset categories are evaluated and current market factors, such as inflation and interest rates, are considered in determining the expected long-term rate of return assumption. A one percent change in the health care cost trend rate assumption (with all other assumptions remaining constant) would have impacted the service and interest cost components of the net periodic postretirement benefit cost and the postretirement benefit obligation as of and for the year ended December 31, 2016 as follows: (dollars in thousands) One Percent One Percent Effect on the Total of Service and Interest Cost Component of $ 144 $ (121 ) Effect on the Postretirement Benefit Obligation 1,516 (1,393 ) The Company expects to contribute $0.5 million to the Pension Plans and $1.0 million to the postretirement benefit plan for the year ending December 31, 2017 . As of December 31, 2016 , expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter were as follows: (dollars in thousands) Pension Benefits Postretirement Benefits 2017 $ 6,478 $ 974 2018 6,604 951 2019 6,842 984 2020 6,999 1,049 2021 7,116 1,131 Years 2022-2026 36,099 7,366 Retirement Plan Assets The Company’s overall investment strategy is to maintain the purchasing power of the current assets and all future contributions by producing positive rates of return on plan assets; achieve capital growth towards the attainment of full funding of the Retirement Plan’s termination liability; maximize returns within reasonable and prudent levels of risk; and control costs of administering the plan and managing the investments. The long-term investment objective is to achieve an overall annualized total return, gross of fees, above the blended benchmark index comprised of 35% MSCI USA IMI Index, 25% MSCI ACWI ex-US Index, and 40% Barclays Capital Aggregate Bond Index. Subject to liquidity requirements, the asset allocation targets are 60% for equity securities, 40% for fixed income securities with a 10% to 20% range permitted from the strategic targets, and zero to 20% for cash. Within the equity securities portfolio, the range for domestic securities is from 50% to 100% and the range for international securities is from 0% to 50% . All assets selected for the Retirement Plan must have a readily ascertainable market value and must be readily marketable. Due to market fluctuations or cash flows, the allocation for each asset class may be breached by as much as 5% on a temporary basis. However, asset allocations are expected to conform to target ranges within 90 days of such an occurrence. The fair values of the Retirement Plan assets as of December 31, 2016 and 2015 by asset category were as follows: Fair Value Measurements Asset Category (dollars in thousands) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Other Unobservable Inputs (Level 3) Total as of Dec. 31, 2016 Total as of Dec. 31, 2015 Cash $ 1,898 $ — $ — $ 1,898 $ 1,313 Equity Securities – Mutual Funds: Mixed-Cap 29,593 — — 29,593 30,949 International 18,040 — — 18,040 17,917 Emerging Market 2,043 — — 2,043 1,982 Fixed Income Securities – Mutual Funds 31,809 — — 31,809 31,697 Total $ 83,383 $ — $ — $ 83,383 $ 83,858 Quoted prices for these investments were available in active markets, and therefore were classified as Level 1 measurements in the fair value hierarchy.

Share-Based Compensation

Share-Based Compensation	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Share-Based Compensation The Company has share-based compensation plans which allow grants of stock options, restricted stock, stock appreciation rights, and restricted stock units to its employees and non-employee directors. The Company’s employee stock option plans are shareholder approved and administered by the Human Resources and Compensation Committee of the Board of Directors. Stock options provide grantees the option to purchase shares of the Parent’s common stock at a specified exercise price and, generally, expire 10 years from the date of grant. Stock option grants include incentive and non-qualified stock options whose vesting may be subject to one or more criteria, including employment or achievement of Company performance measures. Stock option exercise prices were equal to the quoted market price of the Parent’s common stock on the date of grant. Restricted stock provides grantees with rights to shares of common stock upon completion of one or more criteria, including service period, performance or other conditions as established by the Compensation Committee, such as vesting tied to the Company’s financial performances relative to the peer group or achievement of an absolute financial performance target. During the restriction period, all shares are considered outstanding and dividends are paid on the restricted stock. Generally, restricted stock vests over periods ranging from one to five years from the date of grant. Restricted stock and dividends may be forfeited if an employee terminates prior to vesting. As of December 31, 2016 , total shares authorized under the plans were 1.3 million shares, of which 1.2 million shares were available for future grants. The Company recognizes compensation expense, measured as the fair value of the share-based award on the date of grant, on a straight-line basis over the requisite service period. Share-based compensation is recorded in the statements of income as a component of salaries and benefits for employees and as a component of other noninterest expense for non-employee directors, with a corresponding increase to capital surplus in shareholders’ equity. For the years ended December 31, 2016 , 2015 , and 2014 , compensation expense and the related income tax benefit recognized for stock options and restricted stock were as follows: (dollars in thousands) 2016 2015 2014 Compensation Expense $ 6,787 $ 7,689 $ 7,870 Income Tax Benefit 2,680 3,036 3,104 Restricted Stock As of December 31, 2016 , unrecognized compensation expense related to unvested restricted stock was $8.4 million . The unrecognized compensation expense is expected to be recognized over a weighted average period of 1.84 years. The following table presents the activity for restricted stock: Number of Shares Weighted Average Grant Date Fair Value Unvested as of December 31, 2013 239,775 $ 47.50 Granted 155,447 58.45 Vested (130,238 ) 47.32 $ 6,163 Forfeited (1,538 ) 51.19 Unvested as of December 31, 2014 263,446 $ 53.04 Granted 116,331 57.31 Vested (108,949 ) 52.47 $ 5,759 Forfeited (2,015 ) 54.17 Unvested as of December 31, 2015 268,813 $ 55.92 Granted 121,495 64.40 Vested (105,891 ) 53.46 $ 5,661 Forfeited (13,894 ) 58.14 Unvested as of December 31, 2016 1 270,523 $ 60.58 1 As of December 31, 2016 , 26,812 shares were unvested from service-based grants. Restricted Stock Units During 2016 , 2015 , and 2014 , the Company granted RSUs payable solely in cash. The RSUs vest over periods ranging from three to four years from the date of grant and are subject to forfeiture until performance and employment targets are achieved. Upon vesting, the RSUs are converted to cash based on the closing stock price on the vesting date. Total recognized compensation expense related to the RSUs was $5.9 million , $3.3 million , and $1.6 million for the years ended December 31, 2016 , 2015 , and 2014 , respectively. The following table presents the activity for RSU: Number of Units Weighted Average Fair Value of Restricted Balance as of December 31, 2013 — $ — Granted 105,405 55.17 Balance as of December 31, 2014 105,405 $ 55.17 Granted 61,751 56.68 Vested (31,651 ) 55.17 $ 1,940 Balance as of December 31, 2015 135,505 $ 55.86 Granted 58,541 63.92 Vested (31,660 ) 55.17 $ 1,897 Forfeited (7,554 ) 56.08 Balance as of December 31, 2016 154,832 $ 59.04 Stock Options There were no stock options granted for the years ended December 31, 2016 , 2015 , and 2014 . All stock options granted were fully vested prior to December 31, 2014 . The Company reissues treasury stock to satisfy stock option exercises. The following table presents the activity related to stock options under all plans for the year ended December 31, 2016 : Stock Weighted Weighted Aggregate Stock Options Outstanding as of January 1, 2016 555,359 $ 45.31 Exercised (76,470 ) 46.37 Stock Options Outstanding as of December 31, 2016 478,889 45.14 5.0 $ 20,856 Stock Options Vested and Exercisable as of December 31, 2016 478,889 45.14 5.0 20,856 The following summarizes certain stock option activity of the Company for the years ended December 31, 2016 , 2015 , and 2014 : (dollars in thousands) 2016 2015 2014 Intrinsic Value of Stock Options Exercised $ 1,990 $ 2,754 $ 1,209 Cash Received from Stock Options Exercised 3,546 9,704 4,083 Tax Benefits Realized from Stock Options Exercised 384 330 34

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Provision for Income Taxes The components of the Company’s provision for income taxes for the years ended December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) 2016 2015 2014 Current: Federal $ 69,061 $ 73,278 $ 76,789 State 1,885 3,737 3,018 Total Current 70,946 77,015 79,807 Deferred: Federal 6,947 (6,801 ) (5,603 ) State 240 284 392 Total Deferred 7,187 (6,517 ) (5,211 ) Provision for Income Taxes $ 78,133 $ 70,498 $ 74,596 The tax effects of fair value adjustments on available-for-sale investment securities, the amortization of unrealized gains and losses related to investment securities transferred to held-to-maturity, the minimum pension liability adjustment, and tax benefits related to stock options are recorded directly to consolidated shareholders’ equity. The net tax benefit recorded directly to consolidated shareholders’ equity was $7.9 million for the year ended December 31, 2016 . The net tax charge recorded directly to consolidated shareholders’ equity was $1.0 million and $2.7 million for the years ended December 31, 2015 and 2014 , respectively. Deferred Tax Liabilities and Assets As of December 31, 2016 and 2015 , significant components of the Company’s deferred tax liabilities and assets were as follows: December 31, (dollars in thousands) 2016 2015 Deferred Tax Liabilities: Accrued Pension Cost $ (13,292 ) $ (13,707 ) Federal Home Loan Bank Stock (5,088 ) (5,088 ) Lease Transactions (87,454 ) (85,874 ) Energy Tax Credits (10,476 ) (8,054 ) Net Unrealized Gains on Investments Securities — (3,453 ) Investment in Variable Interest Entities (1,883 ) — Deferred Loan Fees (9,088 ) (7,744 ) Originated Mortgage Servicing Rights (9,588 ) (9,104 ) Other (691 ) (657 ) Gross Deferred Tax Liabilities (137,560 ) (133,681 ) Deferred Tax Assets: Accelerated Depreciation 6,027 7,775 Allowance for Loan Losses 43,705 42,890 Minimum Pension Liability 18,852 18,831 Accrued Expenses 18,693 16,738 Postretirement Benefit Obligations 12,900 12,849 Capital Lease Expenses 3,235 3,231 Restricted Stock 7,955 6,262 Net Unrealized Losses on Investments Securities 3,271 — Investment in Variable Interest Entities — 1,951 Deductible State and Local Taxes 3,956 4,166 Other 7,596 7,225 Gross Deferred Tax Assets Before Valuation Allowance 126,190 121,918 Valuation Allowance (3,655 ) (3,932 ) Gross Deferred Tax Assets After Valuation Allowance 122,535 117,986 Net Deferred Tax Liabilities $ (15,025 ) $ (15,695 ) Both positive and negative evidence was considered by management in determining the need for a valuation allowance. Negative evidence included the uncertainty regarding the generation of capital gains in future years and restrictions on the ability to sell low-income housing investments during periods when carrybacks of capital losses are allowed. Positive evidence included capital gains in the current year and carryback years. After considering all available evidence, management determined that a valuation allowance to offset deferred tax assets related to low-income housing investments that can only be used to offset capital gains was appropriate. Management determined that a valuation allowance was not required for the remaining deferred tax assets because it is more likely than not these assets will be realized through future reversals of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences, and taxable income in prior carryback years. Certain events covered by Internal Revenue Code Section 593(e) will trigger a recapture of base year reserves of acquired thrift institutions. The base year reserves of acquired thrift institutions would be recaptured if an entity ceases to qualify as a bank for federal income tax purposes. The base year reserves of thrift institutions also remain subject to income tax penalty provisions that, in general, require recapture upon certain stock redemptions of, and excess distributions to, shareholders. As of December 31, 2016 , retained earnings included $18.2 million of base year reserves for which the deferred federal income tax liability of $7.2 million has not been recognized. Effective Tax Rate The following is a reconciliation of the statutory federal income tax rate to the Company’s effective tax rate for the years ended December 31, 2016 , 2015 , and 2014 : 2016 2015 2014 Statutory Federal Income Tax Rate 35.00 % 35.00 % 35.00 % Increase (Decrease) in Income Tax Rate Resulting From: State Taxes, Net of Federal Income Tax 0.60 1.23 0.59 Tax Reserve Adjustments (0.18 ) 0.38 0.88 Leveraged Leases (0.13 ) 0.06 0.01 Low-Income Housing Investments (0.69 ) (0.78 ) (0.10 ) Investment Tax Credits (0.85 ) (0.89 ) (0.68 ) Bank-Owned Life Insurance (0.88 ) (1.06 ) (0.97 ) Tax-Exempt Income (2.71 ) (3.03 ) (2.83 ) Other (0.06 ) (0.42 ) (0.51 ) Effective Tax Rate 30.10 % 30.49 % 31.39 % Unrecognized Tax Benefits The Company is required to record a liability, referred to as an unrecognized tax benefit (“UTB”), for the entire amount of benefit taken in a prior or future income tax return when the Company determines that a tax position has a less than 50% likelihood of being accepted by the taxing authority. The following presents a reconciliation of the Company’s liability for UTBs for the years ended December 31, 2016 , 2015 , and 2014 : (dollars in thousands) 2016 2015 2014 Unrecognized Tax Benefits at Beginning of Year $ 11,602 $ 12,229 $ 11,846 Gross Increases, Related to Tax Positions Taken in a Prior Period 145 398 1,074 Gross Decreases, Related to Tax Positions Taken in a Prior Period (230 ) (98 ) (314 ) Gross Increases, Related to Current Period Tax Positions 395 573 498 Settlement with Taxing Authority (1,002 ) — — Lapse of Statute of Limitations (4,336 ) (1,500 ) (875 ) Unrecognized Tax Benefits at End of Year $ 6,574 $ 11,602 $ 12,229 As of December 31, 2016 and 2015 , $5.8 million and $10.8 million , respectively, in liabilities for UTBs was related to UTBs that if reversed would have an impact on the Company’s effective tax rate. Management believes that it is reasonably possible that the Company’s liability for UTBs could further decrease as a result of the expiration of statutes of limitations within the next 12 months. However, management is currently not able to estimate a range of possible change in the amount of the liability for UTBs recorded as of December 31, 2016 . The Company classifies interest and penalties, if any, related to the liability for UTBs as a component of the provision for income taxes. For the years ended December 31, 2016 , 2015 , and 2014 , the Company recorded a net tax benefit of $1.1 million , net tax provision of less than $0.1 million , and a net tax provision of $0.2 million , respectively, for interest and penalties. As of December 31, 2016 and 2015 , the Company had accrued $1.0 million and $2.2 million , respectively, for the payment of possible interest and penalties. During the year ended December 31, 2016 , a settlement agreement was reached with the IRS related to prior tax years after the Company had filed a protest with IRS Appeals which resulted in a $0.5 million release of federal tax reserves. The federal tax returns for 2012 through 2015 remain subject to examination. The Company’s State of Hawaii income tax returns for 2012 through 2015 remain subject to examination by the taxing authorities.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2016
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 December 31, 2016 and 2015 were as follows: December 31, 2016 December 31, 2015 (dollars in thousands) Notional Amount Fair Value Notional Amount Fair Value Interest Rate Lock Commitments $ 55,223 $ 1,067 $ 4,375 $ 270 Forward Commitments 104,962 847 5,862 4 Interest Rate Swap Agreements Receive Fixed/Pay Variable Swaps 357,441 1,381 203,667 13,021 Pay Fixed/Receive Variable Swaps 357,441 (1,395 ) 203,667 (13,051 ) Foreign Exchange Contracts 38,172 (757 ) 42,777 104 The following table presents the Company’s derivative financial instruments, their fair values, and the location in the consolidated statements of condition as of December 31, 2016 and 2015 : December 31, 2016 December 31, 2015 Derivative Financial Instruments Not Designated 1 (dollars in thousands) Asset Liability Asset Liability Interest Rate Lock Commitments $ 1,236 $ 169 $ 270 $ — Forward Commitments 873 26 5 1 Interest Rate Swap Agreements 11,569 11,583 13,543 13,573 Foreign Exchange Contracts 53 810 149 45 Total $ 13,731 $ 12,588 $ 13,967 $ 13,619 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 years ended December 31, 2016 , 2015 , and 2014 : Location of Net Gains (Losses)Recognized in the Year Ended December 31, Derivative Financial Instruments Not Designated (dollars in thousands) 2016 2015 2014 Interest Rate Lock Commitments Mortgage Banking $ 7,834 $ 2,779 $ 3,072 Forward Commitments Mortgage Banking 1,741 27 (527 ) Interest Rate Swap Agreements Other Noninterest Income 2,987 1,085 130 Foreign Exchange Contracts Other Noninterest Income 2,962 2,783 3,107 Total $ 15,524 $ 6,674 $ 5,782 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 December 31, 2016 and 2015 , 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 marketable securities, is posted by the counterparty with net liability positions in accordance with contract thresholds. See Note 19 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 December 31, 2016 , 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 3 Investment Securities for more information.

Affordable Housing Projects Tax

Affordable Housing Projects Tax Credit Partnerships Affordable Housing Projects Tax Credit Partnerships	12 Months Ended
	Dec. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Affordable Housing Projects 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 $66.6 million and $68.8 million as of December 31, 2016 and 2015 , respectively, and are included in other assets in the consolidated statements of condition. Unfunded Commitments As of December 31, 2016 , the expected payments for unfunded affordable housing commitments were as follows: (dollars in thousands) Amount 2017 $ 15,155 2018 566 2019 91 2020 27 2021 9 Thereafter 382 Total Unfunded Commitments $ 16,230 The following table presents tax credits and other tax benefits recognized and amortization expense related to affordable housing for the years ended December 31, 2016 , 2015 , and 2014 . (dollars in thousands) 2016 2015 2014 Effective Yield Method Tax credits and other tax benefits recognized $ 13,996 $ 13,448 $ 10,946 Amortization Expense in Provision for Income Taxes 7,886 7,735 5,881 There were no impairment losses related to LIHTC investments for the years ended December 31, 2016 , 2015 , and 2014 .

Balance Sheet Offsetting

Balance Sheet Offsetting	12 Months Ended
	Dec. 31, 2016
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 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 $5.5 million and $13.1 million as of December 31, 2016 and 2015 , respectively. See Note 17 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 December 31, 2016 and 2015 , 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 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 December 31, 2015 Class of Collateral Pledged: Debt Securities Issued by the U.S. Treasury and Government Agencies $ — $ — $ 200,000 $ 110,313 $ 310,313 Debt Securities Issued by States and Political Subdivisions 47,915 4,692 100 — 52,707 Mortgage-Backed Securities: Residential - Government Agencies 1,150 51,169 — 102,919 155,238 Residential - U.S. Government-Sponsored Enterprises — 23,831 — 86,768 110,599 Total $ 49,065 $ 79,692 $ 200,100 $ 300,000 $ 628,857 The following table presents the assets and liabilities subject to an enforceable master netting arrangement, or repurchase agreements, as of December 31, 2016 and 2015 . 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 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 — Total Repurchase Agreements $ 523,378 $ — $ 523,378 $ — $ 523,378 $ — December 31, 2015 Assets: Interest Rate Swap Agreements: Institutional Counterparties $ 261 $ — $ 261 $ 261 $ — $ — Liabilities: Interest Rate Swap Agreements: Institutional Counterparties 13,312 — 13,312 261 — 13,051 Repurchase Agreements: Private Institutions 575,000 — 575,000 — 575,000 — Government Entities 53,857 — 53,857 — 53,857 — Total Repurchase Agreements $ 628,857 $ — $ 628,857 $ — $ 628,857 $ — 1 The application of collateral cannot reduce the net amount below zero. Therefore, excess collateral is not reflected in this table. For repurchase agreements with private institutions, the fair value of investment securities pledged was $599.3 million and $663.2 million as of December 31, 2016 and 2015 , respectively. For repurchase agreements with government entities, the fair value of investment securities pledged was $28.9 million and $66.9 million as of December 31, 2016 and 2015 , respectively.

Commitments, Contingencies, and

Commitments, Contingencies, and Guarantees	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies, and Guarantees	Commitments, Contingencies, and Guarantees The Company’s credit commitments as of December 31, 2016 were as follows: (dollars in thousands) December 31, 2016 Unfunded Commitments to Extend Credit $ 2,732,734 Standby Letters of Credit 112,830 Commercial Letters of Credit 16,269 Total $ 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. Assets valued at $89.3 million secured certain specifically identified standby letters of credit as of December 31, 2016 . As of December 31, 2016 , the standby and commercial letters of credit had remaining terms ranging from 1 to 15 months. Lease Commitments A portion of the Company’s headquarters’ building is leased with a lease term through 2052. The Company leases certain other branch premises and equipment with lease terms extending through 2048. Most of the leases for premises provide for a base rent over a specified period with renewal options thereafter. Portions of certain properties are subleased for periods expiring in various years through 2024. Lease terms generally specify that the Company is to pay for taxes, maintenance, and other operating costs. Rental expense for all operating leases for the years ended December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) 2016 2015 2014 Minimum Rentals $ 18,377 $ 18,826 $ 18,411 Sublease Rental Income (6,551 ) (6,212 ) (6,647 ) Total $ 11,826 $ 12,614 $ 11,764 Future minimum payments for capital leases and non-cancelable operating leases with initial or remaining terms of one year or more consisted of the following as of December 31, 2016 : (dollars in thousands) Capital Leases Operating Leases 2017 $ 825 $ 13,632 2018 825 12,108 2019 825 10,045 2020 825 9,588 2021 825 8,823 Thereafter 25,581 103,083 Total Future Minimum Lease Payments 29,706 $ 157,279 Amounts Representing Interest (18,921 ) Present Value of Net Future Minimum Lease Payments $ 10,785 Minimum future rental income receivable under non-cancelable subleases was $17.1 million as of December 31, 2016 . Contingencies The Company, along with other members of Visa, are parties to Loss and Judgment Sharing Agreements (the “Agreements”), which provide that the Company along with other member banks of Visa, will share, based on its proportionate interest in Visa, in any losses from certain litigation specified in the Agreements. In March 2008, Visa funded an escrow account from its initial public offering to settle claims covered under the Agreements. In connection with the initial public offering, the Company received restricted Class B common stock in Visa. Should the escrow account established by Visa not be sufficient to cover litigation claims specified in the Agreements, 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 December 31, 2016 , management believes that the Company’s indemnification of Visa, related to the costs of these lawsuits, will be sufficiently funded from the escrow account or through future reductions in the conversion ratio. See Note 3 Investment Securities and Note 17 Derivative Financial Instruments for more information. On September 9, 2016, a purported class action lawsuit was filed by a Bank customer alleging Bank of Hawaii’s practice of determining whether consumer deposit accounts were overdrawn based on “available balance” (which deducts debit card transactions that have taken place but which have not yet been posted) was not properly applied or disclosed to customers. Additionally, on January 20, 2017, another purported class action lawsuit was filed by a Bank customer alleging Bank of Hawaii’s practice of assessing a continuous negative balance overdraft fee on accounts remaining in a negative balance for extended periods of time beyond the date of the initial overdraft constituted a usurious interest charge and a breach of contract with the customer. These lawsuits are similar to lawsuits filed against other financial institutions pertaining to available balance overdraft fee disclosures and continuing negative balance overdraft fees. Because of the many questions of fact and law that may arise in the future, the outcome of these legal proceedings are uncertain at this point. Based on information available to us at present, we cannot reasonably estimate a range of potential loss, if any, for these actions because, among other things, our potential liability depends on whether a class is certified and, if so, the composition and size of any such class, the applicable time period at issue, as well as an assessment of the appropriate measure of damages if we were to be found liable. Accordingly, we have not recognized any liability associated with these actions. Management disputes any wrongdoing and the cases are being vigorously defended. In addition to the litigation noted above, the Company is subject to various other pending and threatened legal proceedings arising out of 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 December 31, 2016 , the unpaid principal balance of residential mortgage loans sold by the Company was $2.5 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 potentially 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. For the year ended December 31, 2016 , the Company repurchased two residential mortgage loans with an aggregate unpaid principal balance totaling $0.4 million as a result of the representation and warranty provisions contained in these contracts. These loans were delinquent as to principal and interest at the time of repurchase, however, no losses were incurred related to these repurchases. As of December 31, 2016 , there were no pending repurchase requests 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 year ended December 31, 2016 , the Company had no repurchase requests related to loan servicing activities. As of December 31, 2016 , 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 December 31, 2016 , 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 December 31, 2016 , 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	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities The following is a description of the valuation methodologies and key inputs used to measure assets and liabilities recorded at fair value on a recurring 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 December 31, 2016 and 2015 , 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 December 31, 2016 and 2015 , 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 17 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 December 31, 2016 and 2015 : (dollars in thousands) Quoted Prices Significant Significant Total 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 December 31, 2015 Assets: Investment Securities Available-for-Sale Debt Securities Issued by the U.S. Treasury and Government Agencies $ 545 $ 358,349 $ — $ 358,894 Debt Securities Issued by States and Political Subdivisions — 731,918 — 731,918 Debt Securities Issued by Corporations — 308,870 — 308,870 Mortgage-Backed Securities: Residential - Government Agencies — 316,245 — 316,245 Residential - U.S. Government-Sponsored Enterprises — 441,864 — 441,864 Commercial - Government Agencies — 99,027 — 99,027 Total Mortgage-Backed Securities — 857,136 — 857,136 Total Investment Securities Available-for-Sale 545 2,256,273 — 2,256,818 Loans Held for Sale — 4,808 — 4,808 Mortgage Servicing Rights — — 1,970 1,970 Other Assets 20,262 — — 20,262 Derivatives 1 — 154 13,813 13,967 Total Assets Measured at Fair Value on a $ 20,807 $ 2,261,235 $ 15,783 $ 2,297,825 Liabilities: Derivatives 1 $ — $ 46 $ 13,573 $ 13,619 Total Liabilities Measured at Fair Value on a $ — $ 46 $ 13,573 $ 13,619 1 The fair value of each class of derivatives is shown in Note 17 Derivative Financial Instruments . For the years ended December 31, 2016 and 2015 , the changes in Level 3 assets and liabilities measured at fair value on a recurring basis were as follows: (dollars in thousands) Mortgage 1 Net Derivative Assets and Liabilities 2 Year Ended December 31, 2016 Balance as of January 1, 2016 $ 1,970 $ 240 Realized and Unrealized Net Gains (Losses): Included in Net Income (315 ) 7,850 Transfers to Loans Held for Sale — (7,037 ) Balance as of December 31, 2016 $ 1,655 $ 1,053 Total Unrealized Net Gains (Losses) Included in Net Income $ — $ 1,053 Year Ended December 31, 2015 Balance as of January 1, 2015 $ 2,604 $ 118 Realized and Unrealized Net Gains (Losses): Included in Net Income (634 ) 2,783 Transfers to Loans Held for Sale — (2,661 ) Balance as of December 31, 2015 $ 1,970 $ 240 Total Unrealized Net Gains (Losses) Included in Net Income $ (251 ) $ 240 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 December 31, 2016 and 2015 , the significant unobservable inputs used in the fair value measurements were as follows: Significant Unobservable Inputs (weighted-average) Fair Value December 31, December 31, (dollars in thousands) Valuation Technique Description 2016 2015 2016 2015 Mortgage Servicing Rights Discounted Cash Flow Constant Prepayment Rate 1 8.13 % 9.10 % $ 26,803 $ 26,774 Discount Rate 2 9.33 % 9.38 % Net Derivative Assets and Liabilities: Interest Rate Lock Commitments Pricing Model Closing Ratio 92.26 % 94.70 % $ 1,067 $ 270 Interest Rate Swap Agreements Discounted Cash Flow Credit Factor 0.13 % 0.22 % $ (14 ) $ (30 ) 1 Represents annualized loan prepayment 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 December 31, 2016 and 2015 . (dollars in thousands) Fair Value Hierarchy Net Carrying Amount Valuation Allowance December 31, 2016 Mortgage Servicing Rights - amortization method Level 3 $ 22,008 $ — December 31, 2015 Mortgage Servicing Rights - amortization method Level 3 $ 21,032 $ 21 Foreclosed Real Estate Level 3 824 — Other Assets - Equipment Held for Sale Level 3 4,657 9,453 The write-down of mortgage servicing rights accounted for under the amortization method as of December 31, 2015 was primarily due to changes in certain key assumptions used to estimate fair value. This write-down was recovered in 2016. As previously mentioned, all of the Company’s 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. The Company’s equipment held for sale at December 31, 2015 represented six aircraft that were previously on lease agreements. An impairment charge of $9.5 million (included in other noninterest expense in the Company’s consolidated statements of income) was recorded in the third quarter of 2015 to reduce the carrying value to estimated fair value less cost to sell based on recent appraisals, market conditions, and management judgment. Due to the use of significant unobservable inputs combined with significant management judgment regarding the fair value of the six aircraft, the carrying value was deemed a Level 3 measurement. For segment reporting (see Note 13 Business Segments ), the carrying value was included in the Commercial Banking segment. All aircraft were sold in 2016 resulting in a nominal loss on sale from the reduced carrying value. 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 December 31, 2016 and 2015 . (dollars in thousands) Aggregate Aggregate Aggregate Fair Value December 31, 2016 Loans Held for Sale $ 62,499 $ 61,782 $ 717 December 31, 2015 Loans Held for Sale $ 4,808 $ 4,575 $ 233 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 years ended December 31, 2016 and 2015 , 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 December 31, 2016 and 2015 . 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 (dollars in thousands) Carrying Amount Fair Value Quoted Prices in Active Markets for Identical Assets or Liabilities(Level 1) Significant Significant 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 — December 31, 2015 Financial Instruments – Assets Investment Securities Held-to-Maturity $ 3,982,736 $ 4,006,412 $ 489,967 $ 3,516,445 $ — Loans 1 7,538,454 7,967,385 — — 7,967,385 Financial Instruments – Liabilities Time Deposits 1,177,651 1,178,837 — 1,178,837 — Securities Sold Under Agreements to Repurchase 628,857 686,853 — 686,853 — Other Debt 2 234,938 235,668 — 235,668 — 1 Net of unearned income and the Allowance. 2 Excludes capitalized lease obligations.

Bank of Hawaii Corporation Fina

Bank of Hawaii Corporation Financial Statements	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Bank of Hawaii Corporation Financial Statements	Bank of Hawaii Corporation Financial Statements Condensed financial statements of the Parent were as follows: Condensed Statements of Comprehensive Income Year Ended December 31, (dollars in thousands) 2016 2015 2014 Income Dividends from Bank of Hawaii $ 120,000 $ 115,000 $ 136,000 Investment Securities Gains (Losses), Net (340 ) 9,870 7,810 Other Income 279 973 690 Total Income 119,939 125,843 144,500 Noninterest Expense Intercompany Salaries and Services 705 651 839 Other Expenses 1,392 2,325 2,067 Total Noninterest Expense 2,097 2,976 2,906 Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries 117,842 122,867 141,594 Income Tax Benefit (Expense) 2,137 (1,670 ) 225 Equity in Undistributed Income of Subsidiaries 61,482 39,507 21,223 Net Income $ 181,461 $ 160,704 $ 163,042 Comprehensive Income $ 171,112 $ 163,833 $ 168,179 Condensed Statements of Condition (dollars in thousands) December 31, 2016 December 31, 2015 Assets Cash with Bank of Hawaii $ 51,915 $ 63,755 Investment Securities Held-to-Maturity 4,973 4,960 Goodwill 14,129 14,129 Income Taxes Receivable and Deferred Tax Assets 2,071 2,445 Other Assets 7,744 7,842 Equity in Net Assets of Subsidiaries 1,095,077 1,036,977 Total Assets $ 1,175,909 $ 1,130,108 Liabilities Income Taxes Payable $ 6,273 $ 5,072 Other Liabilities 8,099 8,776 Total Liabilities 14,372 13,848 Shareholders' Equity 1,161,537 1,116,260 Total Liabilities and Shareholders' Equity $ 1,175,909 $ 1,130,108 Condensed Statements of Cash Flows Year Ended December 31, (dollars in thousands) 2016 2015 2014 Operating Activities Net Income $ 181,461 $ 160,704 $ 163,042 Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: Share-Based Compensation 558 639 656 Net (Gains) Losses on Sales of Investment Securities 340 (9,870 ) (7,810 ) Equity in Undistributed Income of Subsidiaries (61,482 ) (39,507 ) (21,223 ) Net Change in Other Assets and Other Liabilities 1,508 (481 ) 78 Net Cash Provided by Operating Activities 122,385 111,485 134,743 Investing Activities Capital Contributions to the Bank — (10,179 ) — Proceeds from (Expenses related to) Sales of Investment Securities (340 ) 9,870 7,810 Purchase of Investment Securities Held-to-Maturity — — (4,936 ) Net Cash Provided by (Used in) Investing Activities (340 ) (309 ) 2,874 Financing Activities Proceeds from Issuance of Common Stock 9,079 15,364 9,995 Repurchase of Common Stock (61,807 ) (52,981 ) (64,046 ) Cash Dividends Paid (81,157 ) (78,367 ) (79,660 ) Net Cash Used in Financing Activities (133,885 ) (115,984 ) (133,711 ) Net Change in Cash and Cash Equivalents (11,840 ) (4,808 ) 3,906 Cash and Cash Equivalents at Beginning of Period 63,755 68,563 64,657 Cash and Cash Equivalents at End of Period $ 51,915 $ 63,755 $ 68,563

Summary of Significant Accoun31

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Basis of Presentation	The accounting and reporting principles of the Company conform to U.S. generally accepted accounting principles (“GAAP”) and prevailing practices within the financial services industry.
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.
Consolidation	Consolidation 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”). All significant intercompany accounts and transactions have been eliminated in consolidation.
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 low-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 $16.2 million and $25.3 million as of December 31, 2016 and 2015 , respectively. These unfunded commitments are unconditional and legally binding and are recorded in other liabilities in the consolidated statements of condition. See Note 18 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 $78.9 million and $79.0 million as of December 31, 2016 and 2015 , respectively, and is included in other assets in the consolidated statements of condition.
Investment Securities	Investment Securities Investment securities are accounted for according to their purpose and holding period. Trading securities are those that are bought and held principally for the purpose of selling them in the near term. The Company held no trading securities as of December 31, 2016 and 2015 . Available-for-sale investment securities, comprised of debt and mortgage-backed securities, are those that may be sold before maturity due to changes in the Company’s interest rate risk profile or funding needs, and are reported at fair value with unrealized gains and losses, net of taxes, reported as a component of other comprehensive income. Held-to-maturity investment securities, comprised of debt and mortgage-backed securities, are those that management has the positive intent and ability to hold to maturity and are reported at amortized cost. Realized gains and losses are recorded in noninterest income and are determined on a trade date basis using the specific identification method. Interest and dividends on investment securities are recognized in interest income on an accrual basis. Premiums and discounts are amortized or accreted into interest income using the interest method over the expected lives of the individual securities. Transfers of debt securities from the available-for-sale category to the held-to-maturity category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer remains in accumulated other comprehensive income and in the carrying value of the held-to-maturity investment security. Premiums or discounts on investment securities are amortized or accreted as an adjustment of yield using the interest method over the estimated life of the security. Unrealized holding gains or losses that remain in accumulated other comprehensive income are also amortized or accreted over the estimated life of the security as an adjustment of yield, offsetting the related amortization of the premium or accretion of the discount.
Other-Than-Temporary Impairments of Investment Securities	Other-Than-Temporary-Impairments of Investment Securities The Company conducts an other-than-temporary-impairment (“OTTI”) analysis of investment securities on a quarterly basis or more often if a potential loss-triggering event occurs. A write-down of a debt security is recorded when fair value is below amortized cost in circumstances where: (1) the Company has the intent to sell a security; (2) it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis; or (3) the Company does not expect to recover the entire amortized cost basis of the security. If the Company intends to sell a security or if it is more likely than not that the Company will be required to sell the security before recovery, an OTTI write-down is recognized in earnings equal to the entire difference between the security’s amortized cost basis and its fair value. If the Company does not intend to sell the security or it is not more likely than not that it will be required to sell the security before recovery, the OTTI write-down is separated into an amount representing credit loss, which is recognized in earnings, and an amount related to all other factors, which is recognized in other comprehensive income. To determine the amount related to credit loss on a debt security, the Company applies a methodology similar to that used for evaluating the impairment of loans. As of December 31, 2016 , management determined that the Company did not own any investment securities that were other-than-temporarily-impaired.
Loans Held for Sale	Loans Held for Sale Residential mortgage loans with the intent to be sold in the secondary market are accounted for on an aggregate basis under the fair value option. Fair value is primarily determined based on quoted prices for similar loans in active markets. Non-refundable fees and direct loan origination costs related to residential mortgage loans held for sale are recognized as part of the cost basis of the loan at the time of sale. Gains and losses on sales of residential mortgage loans (sales proceeds minus carrying value) are recorded in the mortgage banking component of noninterest income. Commercial loans that management has an active plan to sell are valued on an individual basis at the lower-of-cost-or fair value. Fair value is primarily determined based on quoted prices for similar loans in active markets or agreed upon sales prices. Any reduction in the loan’s value, prior to being transferred to the held-for-sale category, is reflected as a charge-off of the recorded investment in the loan resulting in a new cost basis, with a corresponding reduction in the allowance for loan and lease losses. Further decreases in the fair value of the loan are recognized in noninterest expense.
Loans and Leases	Loans and Leases Loans are reported at the principal amount outstanding, net of unearned income including unamortized deferred loan fees and costs, and cumulative net charge-offs. Interest income is recognized on an accrual basis. Loan origination fees, certain direct costs, and unearned discounts and premiums, if any, are deferred and are generally amortized into interest income as yield adjustments using the interest method over the contractual life of the loan. Loan commitment fees are generally recognized into noninterest income. Other credit-related fees are recognized as fee income, a component of noninterest income, when earned. Direct financing leases are carried at the aggregate of lease payments receivable plus the estimated residual value of leased property, less unearned income. Leveraged leases, which are a form of direct financing leases, are carried net of non-recourse debt. Unearned income on direct financing and leveraged leases is amortized over the lease term by methods that approximate the interest method. Residual values on leased assets are periodically reviewed for impairment. Portfolio segments are defined as the level at which an entity develops and documents a systematic methodology to determine its allowance for loan and lease losses (the “Allowance”). Management has determined that the Company has two portfolio segments of loans and leases (commercial and consumer) in determining the Allowance. Both quantitative and qualitative factors are used by management at the portfolio segment level in determining the adequacy of the Allowance for the Company. Classes of loans and leases are a disaggregation of a Company’s portfolio segments. Classes are defined as a group of loans and leases which share similar initial measurement attributes, risk characteristics, and methods for monitoring and assessing credit risk. Management has determined that the Company has eight classes of loans and leases (commercial and industrial, commercial mortgage, construction, lease financing, residential mortgage, home equity, automobile, and other). The “other” class of loans and leases is comprised of revolving credit, credit cards, installment, and lease financing arrangements.
Non-Performing Loans and Leases	Non-Performing Loans and Leases Generally, all classes of commercial loans and leases are placed on non-accrual status upon becoming contractually past due 90 days as to principal or interest (unless loans and leases are adequately secured by collateral, are in the process of collection, and are reasonably expected to result in repayment), when terms are renegotiated below market levels, or where substantial doubt about full repayment of principal or interest is evident. For residential mortgage and home equity loan classes, loans past due 120 days as to principal or interest may be placed on non-accrual status, and a partial charge-off may be recorded, depending on the collateral value and/or the collectability of the loan. For automobile and other consumer loan classes, the entire outstanding balance of the loan is charged off when the loan becomes 120 days past due ( 180 days past due for credit cards) as to principal or interest. When a loan or lease is placed on non-accrual status, the accrued and unpaid interest receivable is reversed and the loan or lease is accounted for on the cash or cost recovery method until qualifying for return to accrual status. All payments received on non-accrual loans and leases are applied against the principal balance of the loan or lease. A loan or lease may be returned to accrual status when all delinquent interest and principal become current in accordance with the terms of the loan or lease agreement and when doubt about repayment is resolved. Generally, for all classes of loans and leases, a charge-off is recorded when it is probable that a loss has been incurred and when it is possible to determine a reasonable estimate of the loss. For all classes of commercial loans and leases, a charge-off is determined on a judgmental basis after due consideration of the debtor’s prospects for repayment and the fair value of collateral. For the pooled segment of the Company’s commercial and industrial loan class, which consists of small business loans, the entire outstanding balance of the loan remains on accrual status until it is charged off during the month that the loan becomes 120 days past due as to principal or interest. As previously mentioned, for residential mortgage and home equity loan classes, a partial charge-off may be recorded at 120 days past due as to principal or interest depending on the collateral value and/or the collectability of the loan. In the event that a loan or line in the home equity loan class is behind another financial institution’s first mortgage, the entire outstanding balance of the loan is charged off when the loan becomes 120 days past due as to principal or interest, unless the combined loan-to-value ratio is 60% or less. As noted above, loans in the automobile and other consumer loan classes are charged off in its entirety upon the loan becoming 120 days past due ( 180 days past due for credit cards) as to principal or interest.
Impaired Loans	Impaired Loans A loan is considered impaired when, based on current information and events, it is probable that the Company will not be able to collect all amounts due from the borrower in accordance with the contractual terms of the loan, including scheduled interest payments. Impaired loans include all classes of commercial non-accruing loans (except lease financing and small business loans), and all loans modified in a troubled debt restructuring. Impaired loans exclude lease financing and smaller balance homogeneous loans (consumer and small business non-accruing loans) that are collectively evaluated for impairment. For all classes of commercial loans, a quarterly evaluation of individual commercial borrowers is performed to identify impaired loans. The identification of specific borrowers for review is based on a review of non-accrual loans as well as those loans specifically identified by management as exhibiting above average levels of risk. When a loan has been identified as being impaired, the amount of impairment 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. If the measurement of the impaired loan is less than the recorded investment in the loan (including accrued interest, net of deferred loan fees or costs, and unamortized premiums or discounts), impairment is recognized by establishing or adjusting an existing allocation of the Allowance, or by recording a partial charge-off of the loan to its fair value. Interest payments made on impaired loans are typically applied to principal unless collectability of the principal amount is reasonably assured, in which case interest income may be accrued or recognized on a cash basis.
Loans Modified in a Troubled Debt Restructuring	Loans Modified in a Troubled Debt Restructuring Loans are considered to have been modified in a troubled debt restructuring when, due to a borrower’s financial difficulties, the Company makes certain concessions to the borrower that it would not otherwise consider. Modifications may include interest rate reductions, principal or interest forgiveness, forbearance, and other actions intended to minimize economic loss and to avoid foreclosure or repossession of collateral. Generally, a non-accrual loan that has been modified in a troubled debt restructuring remains on non-accrual status for a period of at least 6 months to demonstrate that the borrower is able to meet the terms of the modified loan. However, performance prior to the modification, or significant events that coincide with the modification, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual status at the time of loan modification or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains on non-accrual status.
Reserve for Credit Losses	Reserve for Credit Losses The Company’s reserve for credit losses is comprised of two components, the Allowance and the reserve for unfunded commitments (the “Unfunded Reserve”).
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses The Company maintains an Allowance adequate to cover management’s estimate of probable credit losses as of the balance sheet date. Loans and leases that are charged off reduce the Allowance while recoveries of loans and leases previously charged off increase the Allowance. Other changes to the level of the Allowance are recognized through charges or credits to the provision for credit losses (the “Provision”). The Allowance considers both unimpaired and impaired loans and is developed and documented at the portfolio segment level (commercial and consumer). The level of the Allowance related to the Company’s commercial portfolio segment is generally based on the credit risk ratings and historical loss experience of individual borrowers. This is supplemented as necessary by credit judgment to address observed changes in trends and conditions, and other relevant environmental and economic factors that may affect the collectability of loans and leases. Excluding those loans and leases evaluated individually for impairment, the Company’s remaining commercial loans and leases are pooled and collectively evaluated for impairment based on business unit and internal risk rating segmentation. The level of the Allowance related to the Company’s consumer portfolio segment is generally based on analyses of homogeneous pools of loans and leases. Loans and leases are pooled based on similar loan and lease risk characteristics for collective evaluation of impairment. Loss estimates are calculated based on historical rolling average loss rates and average delinquency flows to loss. Consumer loans that have been individually evaluated for impairment or modified in a troubled debt restructuring are excluded from the homogeneous pools. Impairment related to such loans is generally determined based on the present value of expected future cash flows discounted at the loan’s original effective interest rate. The Allowance also includes an estimate for inherent losses not reflected in the historical analyses. Relevant factors include, but are not limited to, concentrations of credit risk (geographic, large borrower, and industry), economic trends and conditions, changes in underwriting standards, experience and depth of lending staff, trends in delinquencies, and the level of net charge-offs. In addition, the Company uses a variety of other tools to estimate probable credit losses including, but not limited to, a rolling quarterly forecast of asset quality metrics; stress testing; and performance indicators based on the Company’s own experience, peers, or other industry sources.
Reserve for Unfunded Commitments	Reserve for Unfunded Commitments The Unfunded Reserve is a component of other liabilities and represents the estimate for probable credit losses inherent in unfunded commitments to extend credit. Unfunded commitments to extend credit include banker’s acceptances, and standby and commercial letters of credit. The process used to determine the Unfunded Reserve is consistent with the process for determining the Allowance, as adjusted for estimated funding probabilities or loan and lease equivalency factors. The level of the Unfunded Reserve is adjusted by recording an expense or recovery in other noninterest expense.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include cash and due from banks, interest-bearing deposits in other banks, and funds sold. All amounts are readily convertible to cash and have maturities of less than 90 days.
Premises and Equipment	Premises and Equipment Premises and equipment, including leasehold improvements, are stated at cost, less accumulated depreciation and amortization. Capital leases are included in premises and equipment at the capitalized amount less accumulated amortization. Premises and equipment are depreciated using the straight-line method over the estimated useful lives of the respective assets. Estimated useful lives generally range up to 30 years for buildings and up to 10 years for equipment. Capitalized leased assets and leasehold improvements are amortized over the shorter of the estimated useful life of the asset or the lease term. Repairs and maintenance are charged to expense as incurred, while improvements which extend the estimated useful life of the asset are capitalized and depreciated over the estimated remaining life of the asset. Premises and equipment are periodically evaluated for impairment when events or changes in circumstances indicate the carrying amount may not be recoverable. Impairment exists when the expected undiscounted future cash flows of premises and equipment are less than its carrying amount. In that event, the Company records a loss for the difference between the carrying amount and the fair value of the asset based on quoted market prices, if applicable, or a discounted cash flow analysis
Foreclosed Real Estate	Foreclosed Real Estate Foreclosed real estate consists of properties acquired through foreclosure proceedings or acceptance of a deed-in-lieu of foreclosure. These properties are recorded at fair value less estimated costs to sell the property. If the recorded investment in the loan exceeds the property’s fair value at the time of acquisition, a charge-off is recorded against the Allowance. If the fair value of the property at the time of acquisition exceeds the carrying amount of the loan, the excess is recorded either as a recovery to the Allowance if a charge-off had previously been recorded, or as a gain on initial transfer in other noninterest income. Subsequent decreases in the property’s fair value and operating expenses of the property are recognized through charges to other noninterest expense. The fair value of the property acquired is based on third party appraisals, broker price opinions, recent sales activity, or a combination thereof, subject to management judgment.
Mortgage Servicing Rights	Mortgage Servicing Rights Mortgage servicing rights are recognized as assets when mortgage loans are sold and the rights to service those loans are retained. Mortgage servicing rights are initially recorded at fair value by using a discounted cash flow model to calculate the present value of estimated future net servicing income. The Company’s mortgage servicing rights accounted for under the fair value method are carried on the statements of condition at fair value with changes in fair value recorded in mortgage banking income in the period in which the change occurs. Changes in the fair value of mortgage servicing rights are primarily due to changes in valuation inputs, assumptions, and the collection and realization of expected cash flows. The Company’s mortgage servicing rights accounted for under the amortization method are initially recorded at fair value. However, these mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income. An impairment analysis is prepared on a quarterly basis by estimating the fair value of the mortgage servicing rights and comparing that value to the carrying amount. A valuation allowance is established when the carrying amount of these mortgage servicing rights exceeds fair value.
Goodwill	Goodwill Goodwill is initially recorded as the excess of the purchase price over the fair value of the net assets acquired in a business combination and is subsequently evaluated at least annually for impairment. Goodwill impairment testing is performed at the reporting unit level, equivalent to a business segment or one level below. The Company has goodwill assigned to the following reporting units: Investment Services and Retail Banking. The Company performs its annual evaluation of goodwill impairment in the fourth quarter of each year and on an interim basis if events or changes in circumstances indicate that there may be impairment. The Company performs a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The qualitative factors considered include, but are not limited to, macroeconomic and State of Hawaii economic conditions, industry and market conditions and trends, the Company’s financial performance, market capitalization, stock price, and any Company-specific events relevant to the assessment. If the assessment of qualitative factors indicates that it is not more likely than not that an impairment exists, no further testing is performed; otherwise an impairment test is performed. The goodwill impairment test is a two-step test. The first step of the goodwill impairment test compares the estimated fair value of identified reporting units with their carrying amount, including goodwill. If the estimated fair value of a reporting unit is less than the carrying value, the second step must be performed to determine the implied fair value of the reporting unit’s goodwill and the amount of goodwill impairment, if any. The implied fair value of goodwill is determined as if the reporting unit were being acquired in a business combination. If the implied fair value of goodwill exceeds the goodwill assigned to the reporting unit, there is no impairment. If the implied fair value of goodwill is less than the carrying amount, a loss would be recognized in other noninterest expense to reduce the carrying amount to the implied fair value of goodwill. Subsequent reversals of goodwill impairment are prohibited. For the year ended December 31, 2016 , the Company’s goodwill impairment evaluation, based on its qualitative assessment, indicated there was no impairment.
Non-Marketable Equity Securities	Non-Marketable Equity Securities The Company is required to own Federal Home Loan Bank (“FHLB”) of Des Moines and Federal Reserve Bank (“FRB”) stock as a condition of membership. These non-marketable equity securities are accounted for at cost which equals par or redemption value. These securities do not have a readily determinable fair value as their ownership is restricted and there is no market for these securities. 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 are periodically evaluated 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 by recognizing temporary declines in value.
Securities Sold Under Agreements to Repurchase	Securities Sold Under Agreements to Repurchase 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, securities sold under agreements to repurchase are accounted for as collateralized financing arrangements (i.e., secured borrowings) and not as a sale and subsequent repurchase 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 securities sold under agreements to repurchase remain in the respective asset accounts. See Note 19 Balance Sheet Offsetting for more information.
Pension and Postretirement Benefit Plans	Pension and Postretirement Benefit Plans The Company incurs certain employment-related expenses associated with its two frozen pension plans and a postretirement benefit plan (the “Plans”). In order to measure the expense associated with the Plans, various assumptions are made including the discount rate, expected return on plan assets, anticipated mortality rates, and expected future healthcare costs. The assumptions are based on historical experience as well as current facts and circumstances. The Company uses a December 31 measurement date for its Plans. As of the measurement date, plan assets are determined based on fair value, generally representing observable market prices. The projected benefit obligation is primarily determined based on the present value of projected benefit distributions at an assumed discount rate. Net periodic pension benefit costs include interest costs based on an assumed discount rate, the expected return on plan assets based on actuarially derived market-related values, and the amortization of net actuarial gains or losses. Net periodic postretirement benefit costs include service costs, interest costs based on an assumed discount rate, and the amortization of prior service credits and net actuarial gains or losses. Differences between expected and actual results in each year are included in the net actuarial gain or loss amount, which is recognized in other comprehensive income. The net actuarial gain or loss in excess of a 10% corridor is amortized in net periodic benefit cost over the average remaining expected lives of the pension plan participants and over the average remaining future service years of the postretirement benefit plan participants. The prior service credit is amortized over the average remaining service period to full eligibility for participating employees expected to receive benefits. The Company recognizes in its consolidated statements of condition an asset for a plan’s overfunded status or a liability for a plan’s underfunded status. The Company also measures the Plans’ assets and obligations that determine its funded status as of the end of the year and recognizes those changes in other comprehensive income, net of tax.
Income Taxes	Income Taxes The Parent files a consolidated federal income tax return with the Bank and its subsidiaries. Calculation of the Company’s provision for income taxes requires the interpretation of income tax laws and regulations and the use of estimates and judgments in its determination. The Company is subject to examination by governmental authorities that may give rise to income tax issues due to differing interpretations. Changes to the liability for income taxes also occur due to changes in income tax rates, implementation of new business strategies, resolution of issues with taxing authorities, and newly enacted statutory, judicial, and regulatory guidance. Deferred income taxes are provided to reflect the tax effect of temporary differences between financial statement carrying amounts and the corresponding tax basis of assets and liabilities. Deferred income taxes are calculated by applying enacted statutory tax rates and tax laws to future years in which temporary differences are expected to reverse. The impact on deferred tax assets and liabilities from a change in tax rates is recognized in income in the period that the tax rate change is enacted. A deferred tax valuation allowance is established if it is more likely than not that a deferred tax asset will not be realized. The Company’s tax sharing policy provides for the settlement of income taxes between each relevant subsidiary as if the subsidiary had filed a separate return. Payments are made to the Parent by subsidiaries with tax liabilities and subsidiaries that generate tax benefits receive payments for those benefits as used. The Company maintains reserves for certain tax positions that arise in the normal course of business. As of December 31, 2016 , these positions were evaluated based on an assessment of probabilities as to the likelihood of whether a liability had been incurred. Such assessments are reviewed as events occur and adjustments to the reserves are made as appropriate. In evaluating a tax position for recognition, the Company evaluates whether it is more likely than not that a tax position will be sustained upon examination, including resolution of related appeals or litigation processes, based on the technical merits of the position. If the tax position meets the more likely than not recognition threshold, the tax position is measured and recognized in the Company’s Consolidated Financial Statements as the largest amount of tax benefit that, in management’s judgment, is greater than 50% likely of being realized upon ultimate settlement.
Treasury Stock	Treasury Stock Shares of the Parent’s common stock that are repurchased are recorded in treasury stock at cost. On the date of subsequent re-issuance, the treasury stock account is reduced by the cost of such stock on a first-in, first-out basis.
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted earnings per share is computed by dividing net income by the weighted average number of common shares outstanding for the period, assuming conversion of all potentially dilutive common stock equivalents.
Derivative Financial Instruments	Derivative Financial Instruments In the ordinary course of business, the Company enters into derivative financial instruments as an end-user in connection with its risk management activities and to accommodate the needs of its customers. The Company has elected not to qualify for hedge accounting methods addressed under current provisions of GAAP. Derivative financial instruments are stated at fair value on the consolidated statements of condition with changes in fair value reported in current period earnings.
Share-Based Compensation	Share-Based Compensation The Company may grant share-based compensation to employees and non-employee directors in the form of restricted stock, restricted stock units and stock options. The fair value of restricted stock is determined based on the closing price of the Parent’s common stock on the date of grant. The Company recognizes compensation expense related to restricted stock on a straight-line basis over the vesting period for service-based awards, plus additional recognition of costs associated with accelerated vesting based on the projected attainment of Company performance measures. Beginning in 2014, the Company issued restricted stock units (“RSUs”) payable solely in cash which are accounted for as other liabilities in the consolidated statements of condition. The fair value of RSUs is initially valued based on the closing price of the Parent’s common stock on the date of grant and is amortized in the statement of income over the vesting period. The RSUs are subsequently remeasured in the same manner described above at the end of each reporting period until settlement. The fair value of stock options is estimated at the date of grant using the Black-Scholes option pricing model and related assumptions. The Company uses historical data to predict option exercise and employee termination behavior. Expected volatilities are based on the historical volatility of the Parent’s common stock. The expected term of options granted is derived from actual historical exercise activity and represents the period of time that options granted are expected to be outstanding. The risk-free rate is derived from the U.S. Treasury yield curve in effect at the time of grant based on the expected life of the option. The dividend yield is equal to the dividend yield of the Parent’s common stock at the time of grant. The amortization of the expense related to stock options reflects estimated forfeitures, adjusted for actual forfeiture experience. Amortization expense related to stock options is recorded in the statements of income as a component of salaries and benefits for employees and as a component of other noninterest expense for non-employee directors, with a corresponding increase to capital surplus in shareholders’ equity. As the expense related to stock options is recognized, a deferred tax asset is established that represents an estimate of future income tax deductions from the release of restrictions or the exercise of stock options.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred
International Operations	International Operations The Bank has operations that are conducted in certain Pacific Islands that are denominated in U.S. dollars. These operations are classified as domestic.
Fair Value Measurements	Fair Value Measurements Fair value measurements apply whenever GAAP requires or permits assets or liabilities to be measured at fair value either on a recurring or nonrecurring basis. 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. Fair value is based on the assumptions that management believes market participants would use when pricing an asset or liability. Fair value measurement and disclosure guidance established a three-level fair value hierarchy that prioritizes the use of inputs used in valuation methodologies. 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. The three-level fair value hierarchy is as follows: 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 shall be 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 requires significant management judgment or estimation, some of which may be internally developed. In determining fair value measurements, management assesses whether the volume and level of activity for an asset or liability have significantly decreased. In such instances, management determines whether recent quoted prices are associated with illiquid or inactive markets. If management concludes that quoted prices are associated with illiquid or inactive markets, adjustments to quoted prices may be necessary or management may conclude that a change in valuation technique or the use of multiple valuation techniques may be appropriate to estimate an asset or liability’s fair value
Accounting Standards Adopted in the Current Year or Pending Adoption	Accounting Standards Adopted in 2016 In February 2015, the FASB issued ASU No. 2015-02, “Amendments to the Consolidation Analysis.” This ASU affects reporting entities that are required to evaluate whether they should consolidate certain legal entities. Specifically, the amendments: (1) modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities; (2) eliminate the presumption that a general partner should consolidate a limited partnership; (3) affect the consolidation analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships; and (4) provide a scope exception from consolidation guidance for reporting entities with interests in legal entities that are required to comply with or operate in accordance with requirements that are similar to those in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds. The Company adopted ASU No. 2015-02 effective January 1, 2016. The adoption of ASU No. 2015-02 did not have a material impact on the Company’s Consolidated Financial Statements. In April 2015, the FASB issued ASU No. 2015-05, “Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement.” This ASU provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The new guidance does not change the accounting for a customer’s accounting for service contracts. The purpose of ASU 2015-05 is to clarify which fees paid in a cloud computing arrangement should be capitalized and which fees should be expensed as incurred. The Company prospectively adopted ASU No. 2015-05 effective January 1, 2016. The adoption of ASU No. 2015-05 did not have a material impact on the Company’s Consolidated Financial Statements. 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 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 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. The Company expects 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. 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.

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2016
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 December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) Amortized Gross Gross Fair 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 December 31, 2015 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 356,260 $ 3,472 $ (838 ) $ 358,894 Debt Securities Issued by States and Political Subdivisions 709,724 22,498 (304 ) 731,918 Debt Securities Issued by Corporations 313,136 236 (4,502 ) 308,870 Mortgage-Backed Securities: Residential - Government Agencies 310,966 6,546 (1,267 ) 316,245 Residential - U.S. Government-Sponsored Enterprises 442,760 1,368 (2,264 ) 441,864 Commercial - Government Agencies 103,227 — (4,200 ) 99,027 Total Mortgage-Backed Securities 856,953 7,914 (7,731 ) 857,136 Total $ 2,236,073 $ 34,120 $ (13,375 ) $ 2,256,818 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 489,747 $ 1,359 $ (1,139 ) $ 489,967 Debt Securities Issued by States and Political Subdivisions 245,980 17,114 — 263,094 Debt Securities Issued by Corporations 151,301 368 (2,041 ) 149,628 Mortgage-Backed Securities: Residential - Government Agencies 2,191,138 27,893 (19,067 ) 2,199,964 Residential - U.S. Government-Sponsored Enterprises 647,762 1,656 (2,616 ) 646,802 Commercial - Government Agencies 256,808 2,381 (2,232 ) 256,957 Total Mortgage-Backed Securities 3,095,708 31,930 (23,915 ) 3,103,723 Total $ 3,982,736 $ 50,771 $ (27,095 ) $ 4,006,412 December 31, 2014 Available-for-Sale: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 325,365 $ 5,933 $ (40 ) $ 331,258 Debt Securities Issued by States and Political Subdivisions 723,474 21,941 (1,445 ) 743,970 Debt Securities Issued by Corporations 298,272 546 (3,985 ) 294,833 Mortgage-Backed Securities: Residential - Government Agencies 452,493 10,986 (1,043 ) 462,436 Residential - U.S. Government-Sponsored Enterprises 276,390 2,262 (191 ) 278,461 Commercial - Government Agencies 186,813 — (8,581 ) 178,232 Total Mortgage-Backed Securities 915,696 13,248 (9,815 ) 919,129 Total $ 2,262,807 $ 41,668 $ (15,285 ) $ 2,289,190 Held-to-Maturity: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 498,767 $ 2,008 $ (1,159 ) $ 499,616 Debt Securities Issued by States and Political Subdivisions 249,559 15,459 — 265,018 Debt Securities Issued by Corporations 166,686 109 (3,442 ) 163,353 Mortgage-Backed Securities: Residential - Government Agencies 2,862,369 45,407 (20,636 ) 2,887,140 Residential - U.S. Government-Sponsored Enterprises 379,365 3,635 (15 ) 382,985 Commercial - Government Agencies 309,933 241 (3,791 ) 306,383 Total Mortgage-Backed Securities 3,551,667 49,283 (24,442 ) 3,576,508 Total $ 4,466,679 $ 66,859 $ (29,043 ) $ 4,504,495
Schedule of 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 December 31, 2016 . 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 Fair Value Available-for-Sale: Due in One Year or Less $ 27,855 $ 27,963 Due After One Year Through Five Years 597,063 596,178 Due After Five Years Through Ten Years 267,948 272,249 Due After Ten Years 42,959 45,127 935,825 941,517 Debt Securities Issued by Government Agencies 406,928 408,176 Mortgage-Backed Securities: Residential - Government Agencies 240,412 243,844 Residential - U.S. Government-Sponsored Enterprises 511,234 506,987 Commercial - Government Agencies 89,544 85,517 Total Mortgage-Backed Securities 841,190 836,348 Total $ 2,183,943 $ 2,186,041 Held-to-Maturity: Due in One Year or Less $ 155,107 $ 155,104 Due After One Year Through Five Years 446,716 449,231 Due After Five Years Through Ten Years 257,018 261,732 Due After Ten Years 49,223 51,667 908,064 917,734 Mortgage-Backed Securities: Residential - Government Agencies 1,940,076 1,936,782 Residential - U.S. Government-Sponsored Enterprises 752,768 742,647 Commercial - Government Agencies 232,089 230,364 Total Mortgage-Backed Securities 2,924,933 2,909,793 Total $ 3,832,997 $ 3,827,527
Schedule of Gross Gains and Losses from Sale of Investment Securities	gains and losses from the sales of investment securities for the years ended December 31, 2016 , 2015 , and 2014 . (dollars in thousands) 2016 2015 2014 Gross Gains on Sales of Investment Securities $ 11,180 $ 11,640 $ 8,063 Gross Losses on Sales of Investment Securities (977 ) (1,480 ) — Net Gains on Sales of Investment Securities $ 10,203 $ 10,160 $ 8,063
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 Fair Value Gross Fair Value Gross December 31, 2016 Available-for-Sales: 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 and Government Agencies $ 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 ) December 31, 2015 Available-for-Sales: Debt Securities Issued by the U.S. Treasury and Government Agencies $ 144,260 $ (822 ) $ 5,452 $ (16 ) $ 149,712 $ (838 ) Debt Securities Issued by States and Political Subdivisions 72,248 (252 ) 6,798 (52 ) 79,046 (304 ) Debt Securities Issued by Corporations 101,269 (1,747 ) 162,304 (2,755 ) 263,573 (4,502 ) Mortgage-Backed Securities: Residential - Government Agencies 30,679 (130 ) 9,117 (1,137 ) 39,796 (1,267 ) Residential - U.S. Government-Sponsored Enterprises 346,603 (2,264 ) — — 346,603 (2,264 ) Commercial - Government Agencies — — 99,026 (4,200 ) 99,026 (4,200 ) Total Mortgage-Backed Securities 377,282 (2,394 ) 108,143 (5,337 ) 485,425 (7,731 ) Total $ 695,059 $ (5,215 ) $ 282,697 $ (8,160 ) $ 977,756 $ (13,375 ) Held-to-Maturity: Debt Securities Issued by the U.S. Treasury $ 264,747 $ (1,139 ) $ — $ — $ 264,747 $ (1,139 ) Debt Securities Issued by Corporations 28,218 (66 ) 71,208 (1,975 ) 99,426 (2,041 ) Mortgage-Backed Securities: Residential - Government Agencies 562,502 (5,828 ) 414,207 (13,239 ) 976,709 (19,067 ) Residential - U.S. Government-Sponsored Enterprises 450,147 (2,616 ) — — 450,147 (2,616 ) Commercial - Government Agencies 74,040 (958 ) 52,207 (1,274 ) 126,247 (2,232 ) Total Mortgage-Backed Securities 1,086,689 (9,402 ) 466,414 (14,513 ) 1,553,103 (23,915 ) Total $ 1,379,654 $ (10,607 ) $ 537,622 $ (16,488 ) $ 1,917,276 $ (27,095 )
Schedule of Interest Income from Taxable and Non-Taxable Investment Securities.	Interest income from taxable and non-taxable investment securities for the years ended December 31, 2016 , 2015 , and 2014 were as follows: Year Ended December 31, (dollars in thousands) 2016 2015 2014 Taxable $ 100,541 $ 109,912 $ 127,128 Non-Taxable 20,438 21,230 21,207 Total Interest Income from Investment Securities $ 120,979 $ 131,142 $ 148,335
Schedule of Carrying Value of the Company's Federal Home Loan Bank and Federal Reserve Bank	As of December 31, 2016 and 2015 , the carrying value of the Company’s Federal Home Loan Bank of Des Moines (“FHLB Des Moines”) stock and Federal Reserve Bank stock was as follows: December 31, (dollars in thousands) 2016 2015 Federal Home Loan Bank Stock $ 20,000 $ 19,000 Federal Reserve Bank Stock 20,063 19,836 Total $ 40,063 $ 38,836

Loans and Leases and the Allo33

Loans and Leases and the Allowance for Loan and Lease Losses (Tables)	12 Months Ended
	Dec. 31, 2016
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 December 31, 2016 and 2015 : December 31, (dollars in thousands) 2016 2015 Commercial Commercial and Industrial $ 1,249,791 $ 1,115,168 Commercial Mortgage 1,889,551 1,677,147 Construction 270,018 156,660 Lease Financing 208,332 204,877 Total Commercial 3,617,692 3,153,852 Consumer Residential Mortgage 3,163,073 2,925,605 Home Equity 1,334,163 1,069,400 Automobile 454,333 381,735 Other 1 380,524 348,393 Total Consumer 5,332,093 4,725,133 Total Loans and Leases $ 8,949,785 $ 7,878,985 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 years ended December 31, 2016 , 2015 , and 2014 . 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 December 31, 2016 , 2015 , and 2014 . (dollars in thousands) Commercial Consumer Total For the Year Ended December 31, 2016 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 60,714 $ 42,166 $ 102,880 Loans and Leases Charged-Off (865 ) (17,644 ) (18,509 ) Recoveries on Loans and Leases Previously Charged-Off 8,137 7,015 15,152 Net Loans and Leases Recovered (Charged-Off) 7,272 (10,629 ) (3,357 ) Provision for Credit Losses (2,306 ) 7,056 4,750 Balance at End of Period $ 65,680 $ 38,593 $ 104,273 As of December 31, 2016 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 45 $ 3,510 $ 3,555 Collectively Evaluated for Impairment 65,635 35,083 100,718 Total $ 65,680 $ 38,593 $ 104,273 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 21,572 $ 39,126 $ 60,698 Collectively Evaluated for Impairment 3,596,120 5,292,967 8,889,087 Total $ 3,617,692 $ 5,332,093 $ 8,949,785 For the Year Ended December 31, 2015 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 64,551 $ 44,137 $ 108,688 Loans and Leases Charged-Off (954 ) (15,485 ) (16,439 ) Recoveries on Loans and Leases Previously Charged-Off 2,173 7,458 9,631 Net Loans and Leases Recovered (Charged-Off) 1,219 (8,027 ) (6,808 ) Provision for Credit Losses (5,056 ) 6,056 1,000 Balance at End of Period $ 60,714 $ 42,166 $ 102,880 As of December 31, 2015 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 205 $ 3,373 $ 3,578 Collectively Evaluated for Impairment 60,509 38,793 99,302 Total $ 60,714 $ 42,166 $ 102,880 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 27,950 $ 38,747 $ 66,697 Collectively Evaluated for Impairment 3,125,902 4,686,386 7,812,288 Total $ 3,153,852 $ 4,725,133 $ 7,878,985 For the Year Ended December 31, 2014 Allowance for Loan and Lease Losses: Balance at Beginning of Period $ 71,446 $ 44,008 $ 115,454 Loans and Leases Charged-Off (2,068 ) (13,371 ) (15,439 ) Recoveries on Loans and Leases Previously Charged-Off 4,721 8,816 13,537 Net Loans and Leases Recovered (Charged-Off) 2,653 (4,555 ) (1,902 ) Provision for Credit Losses (9,548 ) 4,684 (4,864 ) Balance at End of Period $ 64,551 $ 44,137 $ 108,688 As of December 31, 2014 Allowance for Loan and Lease Losses: Individually Evaluated for Impairment $ 2,387 $ 3,561 $ 5,948 Collectively Evaluated for Impairment 62,164 40,576 102,740 Total $ 64,551 $ 44,137 $ 108,688 Recorded Investment in Loans and Leases: Individually Evaluated for Impairment $ 25,116 $ 39,631 $ 64,747 Collectively Evaluated for Impairment 2,803,012 4,029,830 6,832,842 Total $ 2,828,128 $ 4,069,461 $ 6,897,589
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 December 31, 2016 and 2015 . December 31, 2016 (dollars in thousands) Commercial Commercial Construction Lease Total 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 Home Automobile Other 1 Total 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 December 31, 2015 (dollars in thousands) Commercial Commercial Construction Lease Total Pass $ 1,059,475 $ 1,591,696 $ 154,976 $ 204,348 $ 3,010,495 Special Mention 28,076 43,674 80 76 71,906 Classified 27,617 41,777 1,604 453 71,451 Total $ 1,115,168 $ 1,677,147 $ 156,660 $ 204,877 $ 3,153,852 (dollars in thousands) Residential Home Automobile Other 1 Total Pass $ 2,910,667 $ 1,064,253 $ 381,420 $ 347,710 $ 4,704,050 Classified 14,938 5,147 315 683 21,083 Total $ 2,925,605 $ 1,069,400 $ 381,735 $ 348,393 $ 4,725,133 Total Recorded Investment in Loans and Leases $ 7,878,985 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 December 31, 2016 and 2015 . (dollars in thousands) 30 - 59 60 - 89 Past Due Non- Total Current Total Loans Non-Accrual 2 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 As of December 31, 2015 Commercial Commercial and Industrial $ 1,118 $ 359 $ — $ 5,829 $ 7,306 $ 1,107,862 $ 1,115,168 $ 452 Commercial Mortgage 1,245 27 — 3,469 4,741 1,672,406 1,677,147 2,890 Construction 2,120 — — — 2,120 154,540 156,660 — Lease Financing — — — — — 204,877 204,877 — Total Commercial 4,483 386 — 9,298 14,167 3,139,685 3,153,852 3,342 Consumer Residential Mortgage 7,148 3,993 4,453 14,598 30,192 2,895,413 2,925,605 2,056 Home Equity 3,856 1,906 1,710 4,081 11,553 1,057,847 1,069,400 1,710 Automobile 8,103 1,803 315 — 10,221 371,514 381,735 — Other 1 2,281 1,448 1,096 — 4,825 343,568 348,393 — Total Consumer 21,388 9,150 7,574 18,679 56,791 4,668,342 4,725,133 3,766 Total $ 25,871 $ 9,536 $ 7,574 $ 27,977 $ 70,958 $ 7,808,027 $ 7,878,985 $ 7,108 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 December 31, 2016 and 2015 . (dollars in thousands) Recorded Unpaid Related 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 December 31, 2015 Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 14,650 $ 28,212 $ — Commercial Mortgage 10,407 13,907 — Construction 1,604 1,604 — Total Commercial 26,661 43,723 — Total Impaired Loans with No Related Allowance Recorded $ 26,661 $ 43,723 $ — Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 1,289 $ 1,289 $ 205 Total Commercial 1,289 1,289 205 Consumer Residential Mortgage 28,981 34,694 3,171 Home Equity 1,089 1,089 12 Automobile 7,012 7,012 143 Other 1 1,665 1,665 47 Total Consumer 38,747 44,460 3,373 Total Impaired Loans with an Allowance Recorded $ 40,036 $ 45,749 $ 3,578 Impaired Loans: Commercial $ 27,950 $ 45,012 $ 205 Consumer 38,747 44,460 3,373 Total Impaired Loans $ 66,697 $ 89,472 $ 3,578 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 years ended December 31, 2016 and 2015 . Year Ended Year Ended (dollars in thousands) Average Interest Average Interest Impaired Loans with No Related Allowance Recorded: Commercial Commercial and Industrial $ 10,760 $ 463 $ 12,589 $ 406 Commercial Mortgage 9,906 339 7,521 268 Construction 1,559 101 1,647 106 Total Commercial 22,225 903 21,757 780 Total Impaired Loans with No Related Allowance Recorded $ 22,225 $ 903 $ 21,757 $ 780 Impaired Loans with an Allowance Recorded: Commercial Commercial and Industrial $ 939 $ 72 $ 5,379 $ 98 Commercial Mortgage 151 9 — — Total Commercial 1,090 81 5,379 98 Consumer Residential Mortgage 27,436 962 30,895 1,133 Home Equity 1,395 66 1,137 42 Automobile 7,974 522 5,992 432 Other 1 2,003 174 1,198 111 Total Consumer 38,808 1,724 39,222 1,718 Total Impaired Loans with an Allowance Recorded $ 39,898 $ 1,805 $ 44,601 $ 1,816 Impaired Loans: Commercial $ 23,315 $ 984 $ 27,136 $ 878 Consumer 38,808 1,724 39,222 1,718 Total Impaired Loans $ 62,123 $ 2,708 $ 66,358 $ 2,596 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 years ended December 31, 2016 and 2015 . Loans Modified as a TDR for the Loans Modified as a TDR for the Troubled Debt Restructurings (dollars in thousands ) Number of Recorded 1 Increase in Number of Recorded 1 Increase in Commercial Commercial and Industrial 6 $ 3,525 $ 21 30 $ 5,414 $ 1 Commercial Mortgage 1 204 20 4 4,307 — Total Commercial 7 3,729 41 34 9,721 1 Consumer Residential Mortgage 10 3,146 522 13 4,255 99 Home Equity 2 651 7 3 367 4 Automobile 267 5,451 116 170 3,996 81 Other 2 199 1,404 37 168 1,099 31 Total Consumer 478 10,652 682 354 9,717 215 Total 485 $ 14,381 $ 723 388 $ 19,438 $ 216 1 The period end balances reflect all partial 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, loans modified in a TDR that defaulted during the year ended December 31, 2016 and 2015 , 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. Year Ended December 31, 2016 Year Ended December 31, 2015 TDRs that Defaulted During the Period, (dollars in thousands) Number of Recorded 1 Number of Recorded 1 Commercial Commercial and Industrial — $ — 2 $ 4,924 Total Commercial — — 2 4,924 Consumer Residential Mortgage 4 1,445 4 1,449 Home Equity 1 157 — — Automobile 19 373 10 220 Other 2 40 278 21 118 Total Consumer 64 2,253 35 1,787 Total 64 $ 2,253 37 $ 6,711 1 The period end balances reflect all partial 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)	12 Months Ended
	Dec. 31, 2016
Transfers and Servicing of Financial Assets [Abstract]
Analysis of mortgage servicing rights accounted for under the fair value measurement method	For the years ended December 31, 2016 , 2015 , and 2014 , the change in the fair value of the Company’s mortgage servicing rights accounted for under the fair value measurement method was as follows: (dollars in thousands) 2016 2015 2014 Balance at Beginning of Year $ 1,970 $ 2,604 $ 3,826 Changes in Fair Value: Due to Change in Valuation Assumptions 1 — (251 ) (869 ) Due to Payoffs (315 ) (383 ) (353 ) Total Changes in Fair Value of Mortgage Servicing Rights (315 ) (634 ) (1,222 ) Balance at End of Year $ 1,655 $ 1,970 $ 2,604 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 years ended December 31, 2016 , 2015 , and 2014 , 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: (dollars in thousands) 2016 2015 2014 Balance at Beginning of Year $ 21,032 $ 22,091 $ 24,297 Servicing Rights that Resulted From Asset Transfers 3,847 1,737 747 Amortization (2,892 ) (2,832 ) (2,896 ) Valuation Allowance Recovery (Provision) 21 36 (57 ) Balance at End of Year $ 22,008 $ 21,032 $ 22,091 Valuation Allowance: Balance at Beginning of Year $ (21 ) $ (57 ) $ — Valuation Allowance Recovery (Provision) 21 36 (57 ) Balance at End of Year $ — $ (21 ) $ (57 ) Fair Value: Balance at Beginning of Year $ 24,804 $ 22,837 $ 30,100 Balance at End of Year $ 25,148 $ 24,804 $ 22,837
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 December 31, 2016 and 2015 were as follows: December 31, 2016 2015 Weighted-Average Constant Prepayment Rate 1 8.13 % 9.10 % Weighted-Average Life (in years) 7.43 7.40 Weighted-Average Note Rate 4.10 % 4.23 % Weighted-Average Discount Rate 2 9.33 % 9.38 % 1 Represents annualized loan prepayment 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 December 31, 2016 and 2015 is presented in the following table. December 31, (dollars in thousands) 2016 2015 Constant Prepayment Rate Decrease in fair value from 25 basis points (“bps”) adverse change $ (321 ) $ (285 ) Decrease in fair value from 50 bps adverse change (636 ) (566 ) Discount Rate Decrease in fair value from 25 bps adverse change (288 ) (292 ) Decrease in fair value from 50 bps adverse change (570 ) (577 )

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Schedule of premises and equipment	The components of the Company’s premises and equipment as of December 31, 2016 and 2015 were as follows: (dollars in thousands) Cost Accumulated Net Book Value December 31, 2016 Premises $ 321,144 $ (240,567 ) $ 80,577 Equipment 117,356 (87,021 ) 30,335 Capital Leases 6,594 (4,001 ) 2,593 Total $ 445,094 $ (331,589 ) $ 113,505 December 31, 2015 Premises $ 322,552 $ (238,912 ) $ 83,640 Equipment 111,071 (86,176 ) 24,895 Capital Leases 6,593 (3,929 ) 2,664 Total $ 440,216 $ (329,017 ) $ 111,199

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of other assets	The components of the Company’s other assets as of December 31, 2016 and 2015 were as follows: December 31, (dollars in thousands) 2016 2015 Federal Home Loan Bank and Federal Reserve Bank Stock $ 40,063 $ 38,836 Derivative Financial Instruments 13,731 13,967 Low-Income Housing and Other Equity Investments 78,900 79,033 Deferred Compensation Plan Assets 21,952 20,262 Prepaid Expenses 7,355 8,262 Accounts Receivable 12,584 12,539 Other 20,123 26,493 Total Other Assets $ 194,708 $ 199,392

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2016
Deposits [Abstract]
Schedule of time deposits with contractual maturities	Time Deposits As of December 31, 2016 and 2015 , the Company’s total time deposits were $1.2 billion . As of December 31, 2016 , the contractual maturities of these time deposits were as follows: (dollars in thousands) Amount 2017 $ 865,027 2018 167,782 2019 52,324 2020 20,012 2021 101,904 Thereafter 10,658 Total $ 1,217,707
Schedule of time deposits with balances of $100,000 or more with contractual maturities	The amount of time deposits with balances of $100,000 or more was $1.0 billion and $0.9 billion as of December 31, 2016 and 2015 , respectively. As of December 31, 2016 , the contractual maturities of these time deposits were as follows: (dollars in thousands) Amount Three Months or Less $ 268,865 Over Three Months through Six Months 282,130 Over Six Months through Twelve Months 186,157 Over Twelve Months 234,405 Total $ 971,557

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2016
Borrowings Disclosure Abstract
Schedule of details of short-term borrowings	Details of the Company’s short-term borrowings (original term of one year or less) as of December 31, 2016 and 2015 were as follows: December 31, (dollars in thousands) 2016 2015 Funds Purchased 1 Amounts Outstanding $ 9,616 $ 7,333 Weighted-Average Interest Rate 0.15 % 0.14 % Securities Sold Under Agreements to Repurchase (short-term) 2 Amounts Outstanding $ 23,278 $ 3,992 Weighted-Average Interest Rate 0.31 % 0.06 % 1 Federal funds purchased generally mature on the next business day following the date of purchase. 2 Consists entirely of repurchase agreements with government entities. Excludes long-term repurchase agreements with government entities of $0.1 million and $49.9 million as of December 31, 2016 , and 2015 , respectively, and long-term repurchase agreements with private institutions of $500.0 million and $575.0 million as of December 31, 2016 and 2015 , respectively.

Other Debt (Tables)

Other Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Schedule of Other Debt	The Company’s other debt as of December 31, 2016 and 2015 were as follows: December 31, (dollars in thousands) 2016 2015 Federal Home Loan Bank Advances $ 250,000 $ 225,000 Non-Recourse Debt 7,153 9,938 Capital Lease Obligations 10,785 10,848 Total $ 267,938 $ 245,786
Schedule of Annual Maturities of Long-Term Debt, Exclusive of Capital Lease Obligations	As of December 31, 2016 , the annual maturities of the Company’s other debt, exclusive of capital lease obligations, were expected to be as follows: (dollars in thousands) Amount 2017 $ — 2018 175,000 2019 50,000 2020 28,464 2021 3,689 Thereafter — Total $ 257,153

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Stockholders' Equity Note [Abstract]
Schedule of minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts and ratios for the Company and the Bank	The table below sets forth the minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts and ratios for the Company and the Bank as of December 31, 2016 and 2015 : (dollars in thousands) Well Capitalized Company Bank As of December 31, 2016 Shareholders’ Equity $ 1,161,537 $ 1,094,461 Common Equity Tier 1 Capital 1,168,228 1,111,525 Tier 1 Capital 1,168,228 1,111,525 Total Capital 1,278,528 1,221,683 Common Equity Tier 1 Capital Ratio 6.5 % 13.24 % 12.61 % Tier 1 Capital Ratio 8.0 % 13.24 % 12.61 % Total Capital Ratio 10.0 % 14.49 % 13.86 % Tier 1 Leverage Ratio 5.0 % 7.21 % 6.86 % As of December 31, 2015 Shareholders’ Equity $ 1,116,260 $ 1,036,355 Common Equity Tier 1 Capital 1,112,598 1,043,070 Tier 1 Capital 1,112,598 1,043,070 Total Capital 1,212,245 1,142,573 Common Equity Tier 1 Capital Ratio 6.5 % 13.97 % 13.12 % Tier 1 Capital Ratio 8.0 % 13.97 % 13.12 % Total Capital Ratio 10.0 % 15.22 % 14.37 % Tier 1 Leverage Ratio 5.0 % 7.26 % 6.81 %
Components of other comprehensive income	The following table presents the components of other comprehensive income (loss), net of tax: (dollars in thousands) Before Tax Tax Effect Net of Tax Year Ended December 31, 2016 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ (18,647 ) $ (7,358 ) $ (11,289 ) 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 1,605 634 971 Net Unrealized Gains (Losses) on Investment Securities (17,042 ) (6,724 ) (10,318 ) Defined Benefit Plans: Net Actuarial Gains (Losses) Arising During the Period (954 ) (377 ) (577 ) Amortization of Net Actuarial Losses (Gains) 1,224 483 741 Amortization of Prior Service Credit (322 ) (127 ) (195 ) Defined Benefit Plans, Net (52 ) (21 ) (31 ) Other Comprehensive Income (Loss) $ (17,094 ) $ (6,745 ) $ (10,349 ) Year Ended December 31, 2015 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ (5,448 ) $ (2,138 ) $ (3,310 ) Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: (Gain) Loss on Sale (190 ) (75 ) (115 ) Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 2,136 836 1,300 Net Unrealized Gains (Losses) on Investment Securities (3,502 ) (1,377 ) (2,125 ) Defined Benefit Plans: Net Actuarial Gains (Losses) Arising During the Period 7,335 2,869 4,466 Amortization of Net Actuarial Losses (Gains) 1,624 641 983 Amortization of Prior Service Credit (322 ) (127 ) (195 ) Defined Benefit Plans, Net 8,637 3,383 5,254 Other Comprehensive Income (Loss) $ 5,135 $ 2,006 $ 3,129 Year Ended December 31, 2014 Net Unrealized Gains (Losses) on Investment Securities: Net Unrealized Gains (Losses) Arising During the Period $ 28,609 $ 11,286 $ 17,323 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income: (Gain) Loss on Sale (64 ) (25 ) (39 ) Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities 1 (703 ) (277 ) (426 ) Net Unrealized Gains (Losses) on Investment Securities 27,842 10,984 16,858 Defined Benefit Plans: Net Actuarial Gains (Losses) Arising During the Period (20,286 ) (8,000 ) (12,286 ) Amortization of Net Actuarial Losses (Gains) 1,256 496 760 Amortization of Prior Service Credit (322 ) (127 ) (195 ) Defined Benefit Plans, Net (19,352 ) (7,631 ) (11,721 ) Other Comprehensive Income (Loss) $ 8,490 $ 3,353 $ 5,137 1 The amount relates to the amortization/accretion of unrealized gains and losses related to the Company's reclassification of available-for-sale investment securities to the held-to-maturity category.
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: (dollars in thousands) Investment Securities-Available-For-Sale Investment Securities-Held-To-Maturities Defined Benefit Plans Accumulated Other Comprehensive Income (Loss) Year Ended December 31, 2016 Balance at Beginning of Period $ 12,559 $ (7,255 ) $ (28,861 ) $ (23,557 ) Other Comprehensive Income (Loss) Before Reclassifications (11,289 ) — (577 ) (11,866 ) Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) — 971 546 1,517 Total Other Comprehensive Income (Loss) (11,289 ) 971 (31 ) (10,349 ) Balance at End of Period $ 1,270 $ (6,284 ) $ (28,892 ) $ (33,906 ) Year Ended December 31, 2015 Balance at Beginning Period $ 15,984 $ (8,555 ) $ (34,115 ) $ (26,686 ) Other Comprehensive Income (Loss) Before Reclassifications (3,310 ) — 4,466 1,156 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (115 ) 1,300 788 1,973 Total Other Comprehensive Income (Loss) (3,425 ) 1,300 5,254 3,129 Balance at End of Period $ 12,559 $ (7,255 ) $ (28,861 ) $ (23,557 ) Year Ended December 31, 2014 Balance at Beginning Period $ (1,300 ) $ (8,129 ) $ (22,394 ) $ (31,823 ) Other Comprehensive Income (Loss) Before Reclassifications 17,323 — (12,286 ) 5,037 Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (39 ) (426 ) 565 100 Total Other Comprehensive Income (Loss) 17,284 (426 ) (11,721 ) 5,137 Balance at End of Period $ 15,984 $ (8,555 ) $ (34,115 ) $ (26,686 )
Reclassification out of accumulated other comprehensive income	The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss): 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 (dollars in thousands) Year Ended December 31, 2016 2015 2014 Amortization of Unrealized Holding Gains (Losses) on Investment Securities Held-to-Maturity $ (1,605 ) $ (2,136 ) $ 703 Interest Income 634 836 (277 ) Provision for Income Tax (971 ) (1,300 ) 426 Net of Tax Sales of Investment Securities Available-for-Sale — 190 64 Investment Securities Gains (Losses), Net — (75 ) (25 ) Provision for Income Tax — 115 39 Net of Tax Amortization of Defined Benefit Plans Items Prior Service Credit 2 322 322 322 Net Actuarial Losses 2 (1,224 ) (1,624 ) (1,256 ) (902 ) (1,302 ) (934 ) Total Before Tax 356 514 369 Provision for Income Tax (546 ) (788 ) (565 ) Net of Tax Total Reclassifications for the Period $ (1,517 ) $ (1,973 ) $ (100 ) 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 14 Employee Benefits for additional details.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
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 years ended December 31, 2016 , 2015 , and 2014 : Weighted Average Shares 2016 2015 2014 Denominator for Basic Earnings Per Share 42,644,100 43,217,818 43,899,208 Dilutive Effect of Equity Based Awards 235,683 237,059 226,248 Denominator for Diluted Earnings Per Share 42,879,783 43,454,877 44,125,456 Antidilutive Stock Options and Restricted Stock Outstanding — — —

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Selected business segment financial information	Selected business segment financial information as of and for the years ended December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) Retail Commercial Investment Treasury Consolidated Year Ended December 31, 2016 Net Interest Income $ 242,967 $ 156,080 $ 24,714 $ (6,182 ) $ 417,579 Provision for Credit Losses 10,700 (7,322 ) (23 ) 1,395 4,750 Net Interest Income After Provision for Credit Losses 232,267 163,402 24,737 (7,577 ) 412,829 Noninterest Income 91,824 26,967 57,396 21,156 197,343 Noninterest Expense (208,389 ) (70,405 ) (59,782 ) (12,002 ) (350,578 ) Income Before Provision for Income Taxes 115,702 119,964 22,351 1,577 259,594 Provision for Income Taxes (41,067 ) (42,667 ) (8,270 ) 13,871 (78,133 ) Net Income $ 74,635 $ 77,297 $ 14,081 $ 15,448 $ 181,461 Total Assets as of December 31, 2016 $ 5,342,078 $ 3,565,912 $ 280,410 $ 7,303,967 $ 16,492,367 Year Ended December 31, 2015 Net Interest Income $ 202,259 $ 143,944 $ 18,494 $ 29,390 $ 394,087 Provision for Credit Losses 8,033 (1,165 ) (43 ) (5,825 ) 1,000 Net Interest Income After Provision for Credit Losses 194,226 145,109 18,537 35,215 393,087 Noninterest Income 82,391 22,191 58,835 22,802 186,219 Noninterest Expense (199,572 ) (77,500 ) (57,852 ) (13,180 ) (348,104 ) Income Before Provision for Income Taxes 77,045 89,800 19,520 44,837 231,202 Provision for Income Taxes (27,330 ) (31,375 ) (7,222 ) (4,571 ) (70,498 ) Net Income $ 49,715 $ 58,425 $ 12,298 $ 40,266 $ 160,704 Total Assets as of December 31, 2015 $ 4,680,888 $ 3,099,175 $ 274,469 $ 7,400,484 $ 15,455,016 Year Ended December 31, 2014 Net Interest Income $ 178,480 $ 119,655 $ 15,238 $ 66,283 $ 379,656 Provision for Credit Losses 4,783 (2,369 ) (313 ) (6,965 ) (4,864 ) Net Interest Income After Provision for Credit Losses 173,697 122,024 15,551 73,248 384,520 Noninterest Income 79,562 24,021 57,618 18,816 180,017 Noninterest Expense (196,254 ) (67,078 ) (54,571 ) (8,996 ) (326,899 ) Income Before Provision for Income Taxes 57,005 78,967 18,598 83,068 237,638 Provision for Income Taxes (21,079 ) (26,977 ) (6,894 ) (19,646 ) (74,596 ) Net Income $ 35,926 $ 51,990 $ 11,704 $ 63,422 $ 163,042 Total Assets as of December 31, 2014 $ 4,088,878 $ 2,787,611 $ 202,645 $ 7,708,074 $ 14,787,208

Employee Benefits (Tables)

Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Schedule of Defined Benefit Plan Assumptions Used in Calculating Net Periodic Benefit Cost [Table Text Block]	Assumptions used to determine the net periodic benefit cost for the Company’s Pension Plans and postretirement benefit plan for the years ended December 31, 2016 , 2015 , and 2014 were as follows: Pension Benefits Postretirement Benefits 2016 2015 2014 2016 2015 2014 Weighted Average Assumptions as of December 31: Discount Rate 4.70 % 4.25 % 5.22 % 4.74 % 4.28 % 5.22 % Expected Long-Term Rate of Return on Plan Assets 6.00 % 6.00 % 6.00 % — — — Health Care Cost Trend Rate — — — 6.70 % 7.00 % 7.20 %
Schedule of reconciliation of changes in the benefit obligation and the fair value of plan assets, as well as the funded status recognized in the consolidated statements of condition for the pension plans and postretirement benefit plan	The following table provides a reconciliation of changes in benefit obligation and fair value of plan assets, as well as the funded status recognized in the Company’s consolidated statements of condition for the Pension Plans and postretirement benefit plan for the years ended December 31, 2016 and 2015 . Pension Benefits Postretirement Benefits (dollars in thousands) 2016 2015 2016 2015 Benefit Obligation at Beginning of Year $ 105,993 $ 114,707 $ 25,307 $ 30,804 Service Cost — — 513 621 Interest Cost 4,882 4,655 1,134 1,155 Actuarial Losses (Gains) 2,708 (7,647 ) (1,846 ) (5,783 ) Employer Benefits Paid 1 (5,990 ) (5,722 ) (800 ) (1,490 ) Benefit Obligation at End of Year $ 107,593 $ 105,993 $ 24,308 $ 25,307 Fair Value of Plan Assets at Beginning of Year $ 83,858 $ 90,154 $ — $ — Actual Return on Plan Assets 5,031 (1,058 ) — — Employer Contributions 484 484 800 1,490 Employer Benefits Paid 1 (5,990 ) (5,722 ) (800 ) (1,490 ) Fair Value of Plan Assets at End of Year $ 83,383 $ 83,858 $ — $ — Funded Status at End of Year 2 $ (24,210 ) $ (22,135 ) $ (24,308 ) $ (25,307 ) 1 Participants' contributions relative to the postretirement benefit plan were offset against employer benefits paid in the table above. Participants' contributions for postretirement benefits were $0.8 million and $0.6 million for the years ended December 31, 2016 and 2015 , respectively. 2 Amounts are recognized in Retirement Benefits Payable in the consolidated statements of condition.
Schedule of amounts recognized in accumulated other comprehensive income (loss)	The following presents the amounts recognized in the Company’s accumulated other comprehensive income for the Pension Plans and postretirement benefit plan as of December 31, 2016 and 2015 . Pension Benefits Postretirement Benefits (dollars in thousands) 2016 2015 2016 2015 Amounts Recognized in Accumulated Other Net Actuarial Gains (Losses) $ (33,954 ) $ (33,239 ) $ 4,647 $ 3,768 Net Prior Service Credit — — 415 610 Total Amounts Recognized in Accumulated Other $ (33,954 ) $ (33,239 ) $ 5,062 $ 4,378
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 years ended December 31, 2016 , 2015 , and 2014 . Pension Benefits Postretirement Benefits (dollars in thousands) 2016 2015 2014 2016 2015 2014 Service Cost $ — $ — $ — $ 513 $ 621 $ 586 Interest Cost 4,882 4,655 4,975 1,134 1,155 1,325 Expected Return on Plan Assets (5,121 ) (5,222 ) (5,100 ) — — — Amortization of: Prior Service Credit 1 — — — (322 ) (322 ) (322 ) Net Actuarial Losses (Gains) 1 1,617 1,713 1,408 (393 ) (89 ) (152 ) Net Periodic Benefit Cost $ 1,378 $ 1,146 $ 1,283 $ 932 $ 1,365 $ 1,437 1 Represents reclassification adjustments from accumulated other comprehensive income during the period.
Schedule of assumptions used to determine the benefit obligations/net periodic cost	Assumptions used to determine the benefit obligations as of December 31, 2016 and 2015 for the Company’s Pension Plans and postretirement benefit plan were as follows: Pension Benefits Postretirement Benefits 2016 2015 2016 2015 Weighted Average Assumptions as of December 31: Discount Rate 4.45 % 4.70 % 4.57 % 4.74 % Health Care Cost Trend Rate Assumed For Next Year — — 6.50 % 6.70 %
Schedule of impact of one percent change in the health care cost trend rate assumption	A one percent change in the health care cost trend rate assumption (with all other assumptions remaining constant) would have impacted the service and interest cost components of the net periodic postretirement benefit cost and the postretirement benefit obligation as of and for the year ended December 31, 2016 as follows: (dollars in thousands) One Percent One Percent Effect on the Total of Service and Interest Cost Component of $ 144 $ (121 ) Effect on the Postretirement Benefit Obligation 1,516 (1,393 )
Schedule of expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter	As of December 31, 2016 , expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter were as follows: (dollars in thousands) Pension Benefits Postretirement Benefits 2017 $ 6,478 $ 974 2018 6,604 951 2019 6,842 984 2020 6,999 1,049 2021 7,116 1,131 Years 2022-2026 36,099 7,366
Schedule of the fair values of the retirement plan assets by asset category	Fair Value Measurements Asset Category (dollars in thousands) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Other Unobservable Inputs (Level 3) Total as of Dec. 31, 2016 Total as of Dec. 31, 2015 Cash $ 1,898 $ — $ — $ 1,898 $ 1,313 Equity Securities – Mutual Funds: Mixed-Cap 29,593 — — 29,593 30,949 International 18,040 — — 18,040 17,917 Emerging Market 2,043 — — 2,043 1,982 Fixed Income Securities – Mutual Funds 31,809 — — 31,809 31,697 Total $ 83,383 $ — $ — $ 83,383 $ 83,858

Share-Based Compensation (Table

Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of compensation expense and the related income tax benefit recognized for all share-based awards	For the years ended December 31, 2016 , 2015 , and 2014 , compensation expense and the related income tax benefit recognized for stock options and restricted stock were as follows: (dollars in thousands) 2016 2015 2014 Compensation Expense $ 6,787 $ 7,689 $ 7,870 Income Tax Benefit 2,680 3,036 3,104
Schedule of activity for restricted stock	The following table presents the activity for restricted stock: Number of Shares Weighted Average Grant Date Fair Value Unvested as of December 31, 2013 239,775 $ 47.50 Granted 155,447 58.45 Vested (130,238 ) 47.32 $ 6,163 Forfeited (1,538 ) 51.19 Unvested as of December 31, 2014 263,446 $ 53.04 Granted 116,331 57.31 Vested (108,949 ) 52.47 $ 5,759 Forfeited (2,015 ) 54.17 Unvested as of December 31, 2015 268,813 $ 55.92 Granted 121,495 64.40 Vested (105,891 ) 53.46 $ 5,661 Forfeited (13,894 ) 58.14 Unvested as of December 31, 2016 1 270,523 $ 60.58
Schedule of activity for restricted stock units	The following table presents the activity for RSU: Number of Units Weighted Average Fair Value of Restricted Balance as of December 31, 2013 — $ — Granted 105,405 55.17 Balance as of December 31, 2014 105,405 $ 55.17 Granted 61,751 56.68 Vested (31,651 ) 55.17 $ 1,940 Balance as of December 31, 2015 135,505 $ 55.86 Granted 58,541 63.92 Vested (31,660 ) 55.17 $ 1,897 Forfeited (7,554 ) 56.08 Balance as of December 31, 2016 154,832 $ 59.04
Schedule of activity related to stock options	The following table presents the activity related to stock options under all plans for the year ended December 31, 2016 : Stock Weighted Weighted Aggregate Stock Options Outstanding as of January 1, 2016 555,359 $ 45.31 Exercised (76,470 ) 46.37 Stock Options Outstanding as of December 31, 2016 478,889 45.14 5.0 $ 20,856 Stock Options Vested and Exercisable as of December 31, 2016 478,889 45.14 5.0 20,856
Summary of certain stock option activity of the Company	The following summarizes certain stock option activity of the Company for the years ended December 31, 2016 , 2015 , and 2014 : (dollars in thousands) 2016 2015 2014 Intrinsic Value of Stock Options Exercised $ 1,990 $ 2,754 $ 1,209 Cash Received from Stock Options Exercised 3,546 9,704 4,083 Tax Benefits Realized from Stock Options Exercised 384 330 34

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Schedule of the Company's Provision for Income Taxes	The components of the Company’s provision for income taxes for the years ended December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) 2016 2015 2014 Current: Federal $ 69,061 $ 73,278 $ 76,789 State 1,885 3,737 3,018 Total Current 70,946 77,015 79,807 Deferred: Federal 6,947 (6,801 ) (5,603 ) State 240 284 392 Total Deferred 7,187 (6,517 ) (5,211 ) Provision for Income Taxes $ 78,133 $ 70,498 $ 74,596
Schedule of significant components of the Company's Deferred Tax Liabilities and Assets	As of December 31, 2016 and 2015 , significant components of the Company’s deferred tax liabilities and assets were as follows: December 31, (dollars in thousands) 2016 2015 Deferred Tax Liabilities: Accrued Pension Cost $ (13,292 ) $ (13,707 ) Federal Home Loan Bank Stock (5,088 ) (5,088 ) Lease Transactions (87,454 ) (85,874 ) Energy Tax Credits (10,476 ) (8,054 ) Net Unrealized Gains on Investments Securities — (3,453 ) Investment in Variable Interest Entities (1,883 ) — Deferred Loan Fees (9,088 ) (7,744 ) Originated Mortgage Servicing Rights (9,588 ) (9,104 ) Other (691 ) (657 ) Gross Deferred Tax Liabilities (137,560 ) (133,681 ) Deferred Tax Assets: Accelerated Depreciation 6,027 7,775 Allowance for Loan Losses 43,705 42,890 Minimum Pension Liability 18,852 18,831 Accrued Expenses 18,693 16,738 Postretirement Benefit Obligations 12,900 12,849 Capital Lease Expenses 3,235 3,231 Restricted Stock 7,955 6,262 Net Unrealized Losses on Investments Securities 3,271 — Investment in Variable Interest Entities — 1,951 Deductible State and Local Taxes 3,956 4,166 Other 7,596 7,225 Gross Deferred Tax Assets Before Valuation Allowance 126,190 121,918 Valuation Allowance (3,655 ) (3,932 ) Gross Deferred Tax Assets After Valuation Allowance 122,535 117,986 Net Deferred Tax Liabilities $ (15,025 ) $ (15,695 )
Schedule of reconciliation of the statutory federal income tax rate to the Company's Effective Tax Rate	The following is a reconciliation of the statutory federal income tax rate to the Company’s effective tax rate for the years ended December 31, 2016 , 2015 , and 2014 : 2016 2015 2014 Statutory Federal Income Tax Rate 35.00 % 35.00 % 35.00 % Increase (Decrease) in Income Tax Rate Resulting From: State Taxes, Net of Federal Income Tax 0.60 1.23 0.59 Tax Reserve Adjustments (0.18 ) 0.38 0.88 Leveraged Leases (0.13 ) 0.06 0.01 Low-Income Housing Investments (0.69 ) (0.78 ) (0.10 ) Investment Tax Credits (0.85 ) (0.89 ) (0.68 ) Bank-Owned Life Insurance (0.88 ) (1.06 ) (0.97 ) Tax-Exempt Income (2.71 ) (3.03 ) (2.83 ) Other (0.06 ) (0.42 ) (0.51 ) Effective Tax Rate 30.10 % 30.49 % 31.39 %
Schedule of reconciliation of the Company's Liability for Unrecognized Tax Benefits	December 31, 2016 , 2015 , and 2014 : (dollars in thousands) 2016 2015 2014 Unrecognized Tax Benefits at Beginning of Year $ 11,602 $ 12,229 $ 11,846 Gross Increases, Related to Tax Positions Taken in a Prior Period 145 398 1,074 Gross Decreases, Related to Tax Positions Taken in a Prior Period (230 ) (98 ) (314 ) Gross Increases, Related to Current Period Tax Positions 395 573 498 Settlement with Taxing Authority (1,002 ) — — Lapse of Statute of Limitations (4,336 ) (1,500 ) (875 ) Unrecognized Tax Benefits at End of Year $ 6,574 $ 11,602 $ 12,229

Derivative Financial Instrume46

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
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 December 31, 2016 and 2015 were as follows: December 31, 2016 December 31, 2015 (dollars in thousands) Notional Amount Fair Value Notional Amount Fair Value Interest Rate Lock Commitments $ 55,223 $ 1,067 $ 4,375 $ 270 Forward Commitments 104,962 847 5,862 4 Interest Rate Swap Agreements Receive Fixed/Pay Variable Swaps 357,441 1,381 203,667 13,021 Pay Fixed/Receive Variable Swaps 357,441 (1,395 ) 203,667 (13,051 ) Foreign Exchange Contracts 38,172 (757 ) 42,777 104
Derivative financial instruments, their fair values, and balance sheet location	The following table presents the Company’s derivative financial instruments, their fair values, and the location in the consolidated statements of condition as of December 31, 2016 and 2015 : December 31, 2016 December 31, 2015 Derivative Financial Instruments Not Designated 1 (dollars in thousands) Asset Liability Asset Liability Interest Rate Lock Commitments $ 1,236 $ 169 $ 270 $ — Forward Commitments 873 26 5 1 Interest Rate Swap Agreements 11,569 11,583 13,543 13,573 Foreign Exchange Contracts 53 810 149 45 Total $ 13,731 $ 12,588 $ 13,967 $ 13,619 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 years ended December 31, 2016 , 2015 , and 2014 : Location of Net Gains (Losses)Recognized in the Year Ended December 31, Derivative Financial Instruments Not Designated (dollars in thousands) 2016 2015 2014 Interest Rate Lock Commitments Mortgage Banking $ 7,834 $ 2,779 $ 3,072 Forward Commitments Mortgage Banking 1,741 27 (527 ) Interest Rate Swap Agreements Other Noninterest Income 2,987 1,085 130 Foreign Exchange Contracts Other Noninterest Income 2,962 2,783 3,107 Total $ 15,524 $ 6,674 $ 5,782

Affordable Housing Projects T47

Affordable Housing Projects Tax Credit Partnerships (Tables)	12 Months Ended
	Dec. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	As of December 31, 2016 , the expected payments for unfunded affordable housing commitments were as follows: (dollars in thousands) Amount 2017 $ 15,155 2018 566 2019 91 2020 27 2021 9 Thereafter 382 Total Unfunded Commitments $ 16,230 The following table presents tax credits and other tax benefits recognized and amortization expense related to affordable housing for the years ended December 31, 2016 , 2015 , and 2014 . (dollars in thousands) 2016 2015 2014 Effective Yield Method Tax credits and other tax benefits recognized $ 13,996 $ 13,448 $ 10,946 Amortization Expense in Provision for Income Taxes 7,886 7,735 5,881

Balance Sheet Offsetting (Table

Balance Sheet Offsetting (Tables)	12 Months Ended
	Dec. 31, 2016
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 December 31, 2016 and 2015 , 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 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 December 31, 2015 Class of Collateral Pledged: Debt Securities Issued by the U.S. Treasury and Government Agencies $ — $ — $ 200,000 $ 110,313 $ 310,313 Debt Securities Issued by States and Political Subdivisions 47,915 4,692 100 — 52,707 Mortgage-Backed Securities: Residential - Government Agencies 1,150 51,169 — 102,919 155,238 Residential - U.S. Government-Sponsored Enterprises — 23,831 — 86,768 110,599 Total $ 49,065 $ 79,692 $ 200,100 $ 300,000 $ 628,857
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 December 31, 2016 and 2015 . 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 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 — Total Repurchase Agreements $ 523,378 $ — $ 523,378 $ — $ 523,378 $ — December 31, 2015 Assets: Interest Rate Swap Agreements: Institutional Counterparties $ 261 $ — $ 261 $ 261 $ — $ — Liabilities: Interest Rate Swap Agreements: Institutional Counterparties 13,312 — 13,312 261 — 13,051 Repurchase Agreements: Private Institutions 575,000 — 575,000 — 575,000 — Government Entities 53,857 — 53,857 — 53,857 — Total Repurchase Agreements $ 628,857 $ — $ 628,857 $ — $ 628,857 $ — 1 The application of collateral cannot reduce the net amount below zero. Therefore, excess collateral is not reflected in this table. For repurchase agreements with private institutions, the fair value of investment securities pledged was $599.3 million and $663.2 million as of December 31, 2016 and 2015 , respectively. For repurchase agreements with government entities, the fair value of investment securities pledged was $28.9 million and $66.9 million as of December 31, 2016 and 2015 , respectively.

Commitments, Contingencies, a49

Commitments, Contingencies, and Guarantees (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Credit commitments	The Company’s credit commitments as of December 31, 2016 were as follows: (dollars in thousands) December 31, 2016 Unfunded Commitments to Extend Credit $ 2,732,734 Standby Letters of Credit 112,830 Commercial Letters of Credit 16,269 Total $ 2,861,833
Schedule of rental expense	Rental expense for all operating leases for the years ended December 31, 2016 , 2015 , and 2014 were as follows: (dollars in thousands) 2016 2015 2014 Minimum Rentals $ 18,377 $ 18,826 $ 18,411 Sublease Rental Income (6,551 ) (6,212 ) (6,647 ) Total $ 11,826 $ 12,614 $ 11,764
Schedule of future minimum payments for capital leases and non-cancelable operating leases	Future minimum payments for capital leases and non-cancelable operating leases with initial or remaining terms of one year or more consisted of the following as of December 31, 2016 : (dollars in thousands) Capital Leases Operating Leases 2017 $ 825 $ 13,632 2018 825 12,108 2019 825 10,045 2020 825 9,588 2021 825 8,823 Thereafter 25,581 103,083 Total Future Minimum Lease Payments 29,706 $ 157,279 Amounts Representing Interest (18,921 ) Present Value of Net Future Minimum Lease Payments $ 10,785

Fair Value of Assets and Liab50

Fair Value of Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2016
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 December 31, 2016 and 2015 : (dollars in thousands) Quoted Prices Significant Significant Total 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 December 31, 2015 Assets: Investment Securities Available-for-Sale Debt Securities Issued by the U.S. Treasury and Government Agencies $ 545 $ 358,349 $ — $ 358,894 Debt Securities Issued by States and Political Subdivisions — 731,918 — 731,918 Debt Securities Issued by Corporations — 308,870 — 308,870 Mortgage-Backed Securities: Residential - Government Agencies — 316,245 — 316,245 Residential - U.S. Government-Sponsored Enterprises — 441,864 — 441,864 Commercial - Government Agencies — 99,027 — 99,027 Total Mortgage-Backed Securities — 857,136 — 857,136 Total Investment Securities Available-for-Sale 545 2,256,273 — 2,256,818 Loans Held for Sale — 4,808 — 4,808 Mortgage Servicing Rights — — 1,970 1,970 Other Assets 20,262 — — 20,262 Derivatives 1 — 154 13,813 13,967 Total Assets Measured at Fair Value on a $ 20,807 $ 2,261,235 $ 15,783 $ 2,297,825 Liabilities: Derivatives 1 $ — $ 46 $ 13,573 $ 13,619 Total Liabilities Measured at Fair Value on a $ — $ 46 $ 13,573 $ 13,619 1 The fair value of each class of derivatives is shown in Note 17 Derivative Financial Instruments .
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis	For the years ended December 31, 2016 and 2015 , the changes in Level 3 assets and liabilities measured at fair value on a recurring basis were as follows: (dollars in thousands) Mortgage 1 Net Derivative Assets and Liabilities 2 Year Ended December 31, 2016 Balance as of January 1, 2016 $ 1,970 $ 240 Realized and Unrealized Net Gains (Losses): Included in Net Income (315 ) 7,850 Transfers to Loans Held for Sale — (7,037 ) Balance as of December 31, 2016 $ 1,655 $ 1,053 Total Unrealized Net Gains (Losses) Included in Net Income $ — $ 1,053 Year Ended December 31, 2015 Balance as of January 1, 2015 $ 2,604 $ 118 Realized and Unrealized Net Gains (Losses): Included in Net Income (634 ) 2,783 Transfers to Loans Held for Sale — (2,661 ) Balance as of December 31, 2015 $ 1,970 $ 240 Total Unrealized Net Gains (Losses) Included in Net Income $ (251 ) $ 240 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 December 31, 2016 and 2015 , the significant unobservable inputs used in the fair value measurements were as follows: Significant Unobservable Inputs (weighted-average) Fair Value December 31, December 31, (dollars in thousands) Valuation Technique Description 2016 2015 2016 2015 Mortgage Servicing Rights Discounted Cash Flow Constant Prepayment Rate 1 8.13 % 9.10 % $ 26,803 $ 26,774 Discount Rate 2 9.33 % 9.38 % Net Derivative Assets and Liabilities: Interest Rate Lock Commitments Pricing Model Closing Ratio 92.26 % 94.70 % $ 1,067 $ 270 Interest Rate Swap Agreements Discounted Cash Flow Credit Factor 0.13 % 0.22 % $ (14 ) $ (30 ) 1 Represents annualized loan prepayment 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 December 31, 2016 and 2015 . (dollars in thousands) Fair Value Hierarchy Net Carrying Amount Valuation Allowance December 31, 2016 Mortgage Servicing Rights - amortization method Level 3 $ 22,008 $ — December 31, 2015 Mortgage Servicing Rights - amortization method Level 3 $ 21,032 $ 21 Foreclosed Real Estate Level 3 824 — Other Assets - Equipment Held for Sale Level 3 4,657 9,453
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 December 31, 2016 and 2015 . (dollars in thousands) Aggregate Aggregate Aggregate Fair Value December 31, 2016 Loans Held for Sale $ 62,499 $ 61,782 $ 717 December 31, 2015 Loans Held for Sale $ 4,808 $ 4,575 $ 233
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 December 31, 2016 and 2015 . 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 (dollars in thousands) Carrying Amount Fair Value Quoted Prices in Active Markets for Identical Assets or Liabilities(Level 1) Significant Significant 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 — December 31, 2015 Financial Instruments – Assets Investment Securities Held-to-Maturity $ 3,982,736 $ 4,006,412 $ 489,967 $ 3,516,445 $ — Loans 1 7,538,454 7,967,385 — — 7,967,385 Financial Instruments – Liabilities Time Deposits 1,177,651 1,178,837 — 1,178,837 — Securities Sold Under Agreements to Repurchase 628,857 686,853 — 686,853 — Other Debt 2 234,938 235,668 — 235,668 — 1 Net of unearned income and the Allowance. 2 Excludes capitalized lease obligations.

Bank of Hawaii Corporation Fi51

Bank of Hawaii Corporation Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of condensed statements of income	Condensed Statements of Comprehensive Income Year Ended December 31, (dollars in thousands) 2016 2015 2014 Income Dividends from Bank of Hawaii $ 120,000 $ 115,000 $ 136,000 Investment Securities Gains (Losses), Net (340 ) 9,870 7,810 Other Income 279 973 690 Total Income 119,939 125,843 144,500 Noninterest Expense Intercompany Salaries and Services 705 651 839 Other Expenses 1,392 2,325 2,067 Total Noninterest Expense 2,097 2,976 2,906 Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries 117,842 122,867 141,594 Income Tax Benefit (Expense) 2,137 (1,670 ) 225 Equity in Undistributed Income of Subsidiaries 61,482 39,507 21,223 Net Income $ 181,461 $ 160,704 $ 163,042 Comprehensive Income $ 171,112 $ 163,833 $ 168,179
Schedule of condensed statements of condition	Condensed Statements of Condition (dollars in thousands) December 31, 2016 December 31, 2015 Assets Cash with Bank of Hawaii $ 51,915 $ 63,755 Investment Securities Held-to-Maturity 4,973 4,960 Goodwill 14,129 14,129 Income Taxes Receivable and Deferred Tax Assets 2,071 2,445 Other Assets 7,744 7,842 Equity in Net Assets of Subsidiaries 1,095,077 1,036,977 Total Assets $ 1,175,909 $ 1,130,108 Liabilities Income Taxes Payable $ 6,273 $ 5,072 Other Liabilities 8,099 8,776 Total Liabilities 14,372 13,848 Shareholders' Equity 1,161,537 1,116,260 Total Liabilities and Shareholders' Equity $ 1,175,909 $ 1,130,108
Schedule of condensed statements of cash flows	Condensed Statements of Cash Flows Year Ended December 31, (dollars in thousands) 2016 2015 2014 Operating Activities Net Income $ 181,461 $ 160,704 $ 163,042 Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: Share-Based Compensation 558 639 656 Net (Gains) Losses on Sales of Investment Securities 340 (9,870 ) (7,810 ) Equity in Undistributed Income of Subsidiaries (61,482 ) (39,507 ) (21,223 ) Net Change in Other Assets and Other Liabilities 1,508 (481 ) 78 Net Cash Provided by Operating Activities 122,385 111,485 134,743 Investing Activities Capital Contributions to the Bank — (10,179 ) — Proceeds from (Expenses related to) Sales of Investment Securities (340 ) 9,870 7,810 Purchase of Investment Securities Held-to-Maturity — — (4,936 ) Net Cash Provided by (Used in) Investing Activities (340 ) (309 ) 2,874 Financing Activities Proceeds from Issuance of Common Stock 9,079 15,364 9,995 Repurchase of Common Stock (61,807 ) (52,981 ) (64,046 ) Cash Dividends Paid (81,157 ) (78,367 ) (79,660 ) Net Cash Used in Financing Activities (133,885 ) (115,984 ) (133,711 ) Net Change in Cash and Cash Equivalents (11,840 ) (4,808 ) 3,906 Cash and Cash Equivalents at Beginning of Period 63,755 68,563 64,657 Cash and Cash Equivalents at End of Period $ 51,915 $ 63,755 $ 68,563

Summary of Significant Accoun52

Summary of Significant Accounting Policies (VIEs, Receivables and loans, Cash Equivalents) (Details 1) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)classsegmentcomponent	Dec. 31, 2015USD ($)
Variable Interest Entity [Line Items]
Unfunded commitments to fund low-income housing partnerships	$ 16,230
Loans and Leases
Number of portfolio segments of loans and leases (commercial and consumer) | segment	2
Number of classes of loans and leases determined by management | class	8
Loans modified in a troubled debt restructuring
Period during which non-accrual loan that has been modified in a troubled debt restructuring remains on non-accrual status (in months)	6 months
Number of components of company's reserve for credit losses | component	2
Cash and Cash Equivalents
Maximum original maturity period of cash and cash equivalents (in days)	90 days
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
Commercial
Non-Performing Loans and Leases
Minimum maturity period to be considered to place loans and leases on non-accrual status (in days)	90 days
Residential mortgage and home equity loan
Non-Performing Loans and Leases
Minimum maturity period to be considered to place loans and leases on non-accrual status (in days)	120 days
Home Equity
Non-Performing Loans and Leases
Minimum maturity period to be considered for loans and leases to be charged off (in days)	120 days
Home Equity | Maximum
Non-Performing Loans and Leases
Combined loan-to-value ratio, considered in determining whether the entire outstanding balance on the loan is to be charged-off or not (as a percent)	60.00%
Automobile and Other consumer
Non-Performing Loans and Leases
Minimum maturity period to be considered for loans and leases to be charged off (in days)	120 days
Credit Cards
Non-Performing Loans and Leases
Minimum maturity period to be considered for loans and leases to be charged off (in days)	180 days
Commercial and Industrial
Non-Performing Loans and Leases
Minimum maturity period to be considered for loans and leases to be charged off (in days)	120 days
Other Assets
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	$ 78,900	$ 79,000
Other Liabilities
Variable Interest Entity [Line Items]
Unfunded commitments to fund low-income housing partnerships	$ 16,200	$ 25,300

Summary of Significant Accoun53

Summary of Significant Accounting Policies (Property and equipment and other) (Details 2) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)plan	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Pension and Postretirement Benefit Plans
Number of company's pension plans | plan	2
Minimum percentage of net acturial gain (loss) will be amortized in net periodic benefit cost	10.00%
Income Taxes
Minimum percentage of likelihood of tax position being realized upon ultimate settlement according to management's judgment	50.00%
Advertising Costs
Advertising costs | $	$ 6	$ 5.3	$ 5.3
Maximum | Building
Premises and Equipment
Estimated useful lives (in years)	30 years
Maximum | Equipment
Premises and Equipment
Estimated useful lives (in years)	10 years

Summary of Significant Accoun54

Summary of Significant Accounting Policies (Correction of an Immaterial Error to the Financial Statements) (Details 3) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease of originations of loans held-for-sale		$ (280,391,000)	$ (81,224,000)	$ (68,006,000)
Decrease of proceeds from sales of loans held for sale		273,597,000	86,338,000	72,096,000
Increase in net change in loans and leases		1,263,749,000	1,092,118,000	809,382,000
Proceeds from sales of loans		147,898,000	101,803,000	0
Transfer of loans to loans held-for-sale		$ 189,972,000	$ 101,803,000	$ 0
Immaterial Error From Amounts Incorrectly Reported In Prior Period | Adjustment For Error Correction, Fiscal Year 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease of originations of loans held-for-sale	$ 101,800,000
Decrease of proceeds from sales of loans held for sale	101,800,000
Increase in net change in loans and leases	101,800,000
Proceeds from sales of loans	101,800,000
Immaterial Error From Amounts Incorrectly Reported In Prior Period | Adjustment For Error Correction, Fiscal Year 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Transfer of loans to loans held-for-sale	$ 0

Restrictions on Cash (Details 1

Restrictions on Cash (Details 1) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Cash and Cash Equivalents [Abstract]
Required minimum average reserve balance based on the amount of deposits held with the Federal Reserve Bank	$ 153.4	$ 99.3

Investment Securities (Amortiza

Investment Securities (Amortization Cost, Unrealized Gains/Losses, and Fair Value) (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	$ 3,832,997	$ 3,982,736	$ 4,466,679
Held-to-Maturity: Gross Unrealized Gains	34,274	50,771	66,859
Held-to-Maturity: Gross Unrealized Losses	(39,744)	(27,095)	(29,043)
Held-to-Maturity: Fair Value	3,827,527	4,006,412	4,504,495
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment	3,832,997
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	2,183,943	2,236,073	2,262,807
Available-for-Sale: Gross Unrealized Gains	19,539	34,120	41,668
Available-for-Sale: Gross Unrealized Losses	(17,441)	(13,375)	(15,285)
Available-for-Sale	2,186,041	2,256,818	2,289,190
Debt Securities Issued by the U.S. Treasury and Government Agencies
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	407,478	356,260	325,365
Available-for-Sale: Gross Unrealized Gains	2,531	3,472	5,933
Available-for-Sale: Gross Unrealized Losses	(1,294)	(838)	(40)
Available-for-Sale	408,715	358,894	331,258
Debt Securities Issued by States and Political Subdivisions
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	662,231	709,724	723,474
Available-for-Sale: Gross Unrealized Gains	11,455	22,498	21,941
Available-for-Sale: Gross Unrealized Losses	(1,887)	(304)	(1,445)
Available-for-Sale	671,799	731,918	743,970
Debt Securities Issued by Corporations
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	273,044	313,136	298,272
Available-for-Sale: Gross Unrealized Gains	5	236	546
Available-for-Sale: Gross Unrealized Losses	(3,870)	(4,502)	(3,985)
Available-for-Sale	269,179	308,870	294,833
Residential - Government Agencies
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	240,412	310,966	452,493
Available-for-Sale: Gross Unrealized Gains	4,577	6,546	10,986
Available-for-Sale: Gross Unrealized Losses	(1,145)	(1,267)	(1,043)
Available-for-Sale	243,844	316,245	462,436
Residential - U.S. Government Sponsored Enterprises
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	511,234	442,760	276,390
Available-for-Sale: Gross Unrealized Gains	971	1,368	2,262
Available-for-Sale: Gross Unrealized Losses	(5,218)	(2,264)	(191)
Available-for-Sale	506,987	441,864	278,461
Commercial - Government Agencies
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	89,544	103,227	186,813
Available-for-Sale: Gross Unrealized Gains	0	0	0
Available-for-Sale: Gross Unrealized Losses	(4,027)	(4,200)	(8,581)
Available-for-Sale	85,517	99,027	178,232
Mortgage-Backed Securities
Available-for-Sale Securities [Abstract]:
Available-for-Sale: Amortized Cost	841,190	856,953	915,696
Available-for-Sale: Gross Unrealized Gains	5,548	7,914	13,248
Available-for-Sale: Gross Unrealized Losses	(10,390)	(7,731)	(9,815)
Available-for-Sale	836,348	857,136	919,129
Debt Securities Issued by the U.S. Treasury and Government Agencies
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	530,149	489,747	498,767
Held-to-Maturity: Gross Unrealized Gains	1,562	1,359	2,008
Held-to-Maturity: Gross Unrealized Losses	(771)	(1,139)	(1,159)
Held-to-Maturity: Fair Value	530,940	489,967	499,616
Debt Securities Issued by States and Political Subdivisions
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	242,295	245,980	249,559
Held-to-Maturity: Gross Unrealized Gains	9,991	17,114	15,459
Held-to-Maturity: Gross Unrealized Losses	0	0	0
Held-to-Maturity: Fair Value	252,286	263,094	265,018
Debt Securities Issued by Corporations
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	135,620	151,301	166,686
Held-to-Maturity: Gross Unrealized Gains	416	368	109
Held-to-Maturity: Gross Unrealized Losses	(1,528)	(2,041)	(3,442)
Held-to-Maturity: Fair Value	134,508	149,628	163,353
Residential - Government Agencies
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	1,940,076	2,191,138	2,862,369
Held-to-Maturity: Gross Unrealized Gains	20,567	27,893	45,407
Held-to-Maturity: Gross Unrealized Losses	(23,861)	(19,067)	(20,636)
Held-to-Maturity: Fair Value	1,936,782	2,199,964	2,887,140
Residential - U.S. Government Sponsored Enterprises
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	752,768	647,762	379,365
Held-to-Maturity: Gross Unrealized Gains	798	1,656	3,635
Held-to-Maturity: Gross Unrealized Losses	(10,919)	(2,616)	(15)
Held-to-Maturity: Fair Value	742,647	646,802	382,985
Commercial - Government Agencies
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	232,089	256,808
Held-to-Maturity: Gross Unrealized Gains	940	2,381	241
Held-to-Maturity: Gross Unrealized Losses	(2,665)	(2,232)	(3,791)
Held-to-Maturity: Fair Value	230,364	256,957	306,383
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment			309,933
Mortgage-Backed Securities
Held-to-Maturity Securities [Abstract]
Held-to-Maturity: Amortized Cost	2,924,933	3,095,708	3,551,667
Held-to-Maturity: Gross Unrealized Gains	22,305	31,930	49,283
Held-to-Maturity: Gross Unrealized Losses	(37,445)	(23,915)	(24,442)
Held-to-Maturity: Fair Value	$ 2,909,793	$ 3,103,723	$ 3,576,508

Investment Securities (Contract

Investment Securities (Contractual Maturities and Narrative) (Details 2) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Available-for-Sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis Rolling Maturity [Abstract]
Due in One Year or Less	$ 27,855
Due After One Year Through Five Years	597,063
Due After Five Years Through Ten Years	267,948
Due After Ten Years	42,959
Available-for-Sale, Total	935,825
Available-for-Sale Securities, Debt Maturities, Single Maturity Date, Rolling Maturities [Abstract]
Due in One Year or Less	27,963
Due After One Year Through Five Years	596,178
Due After Five Years Through Ten Years	272,249
Due After Ten Years	45,127
Fair Value, Total	941,517
Available-for-Sale: Amortized Cost	2,183,943	$ 2,236,073	$ 2,262,807
Available-for-Sale: Fair Value	2,186,041	2,256,818	2,289,190
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Rolling Maturity [Abstract]
Due in One Year or Less	155,107
Due After One Year Through Five Years	446,716
Due After Five Years Through Ten Years	257,018
Due After Ten Years	49,223
Amortized Cost, Total	908,064
Held-to-Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value, Rolling Maturities [Abstract]
Due in One Year or Less	155,104
Due After One Year Through Five Years	449,231
Due After Five Years Through Ten Years	261,732
Due After Ten Years	51,667
Fair Value, Total	917,734
Held-to-Maturity: Amortized Cost	3,832,997
Held-to-Maturity: Fair Value	3,827,527	4,006,412	4,504,495
Carrying value of investment securities which were pledged to secure deposits of gov't entities and repos	2,400,000	2,500,000	2,800,000
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	406,928
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed-Securities: Fair Value	408,176
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	841,190
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed-Securities: Fair Value	836,348
Available-for-Sale: Amortized Cost	841,190	856,953	915,696
Available-for-Sale: Fair Value	836,348	857,136	919,129
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	240,412
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed-Securities: Fair Value	243,844
Available-for-Sale: Amortized Cost	240,412	310,966	452,493
Available-for-Sale: Fair Value	243,844	316,245	462,436
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	511,234
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed-Securities: Fair Value	506,987
Available-for-Sale: Amortized Cost	511,234	442,760	276,390
Available-for-Sale: Fair Value	506,987	441,864	278,461
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	89,544
Available-for-sale Securities, Debt Securities Issued by Government Agencies and Mortgage-Backed-Securities: Fair Value	85,517
Available-for-Sale: Amortized Cost	89,544	103,227	186,813
Available-for-Sale: Fair Value	85,517	99,027	178,232
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	1,940,076
Held-to-Maturity: Mortgage-Backed-Securities: Fair Value	1,936,782
Held-to-Maturity: Fair Value	1,936,782	2,199,964	2,887,140
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	752,768
Held-to-Maturity: Mortgage-Backed-Securities: Fair Value	742,647
Held-to-Maturity: Fair Value	742,647	646,802	382,985
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	232,089
Held-to-Maturity: Mortgage-Backed-Securities: Fair Value	230,364
Held-to-Maturity: Amortized Cost			309,933
Held-to-Maturity: Fair Value	230,364	256,957	306,383
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	2,924,933
Held-to-Maturity: Mortgage-Backed-Securities: Fair Value	2,909,793
Held-to-Maturity: Fair Value	$ 2,909,793	$ 3,103,723	$ 3,576,508

Investment Securities (Gains an

Investment Securities (Gains and Losses on Sales) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Gross Gains on Sales of Investment Securities	$ 11,180	$ 11,640	$ 8,063
Gross Losses on Sales of Investment Securities	(977)	(1,480)	0
Net Gains on Sales of Investment Securities	10,203	10,160	8,063
Tax on Sale of Investment Securities	$ 4,000	$ 4,000	$ 3,200

Investment Securities (Unrealiz

Investment Securities (Unrealized Position - Less than 12 Mos., 12 Mos. or Longer) (Details 4) $ in Thousands	Dec. 31, 2016USD ($)security	Dec. 31, 2015USD ($)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	$ 863,072	$ 695,059
Less Than 12 Months, Gross Unrealized Losses	(8,620)	(5,215)
12 Months or Longer, Fair Value	384,379	282,697
12 Months or Longer, Gross Unrealized Losses	(8,821)	(8,160)
Total Fair Value	1,247,451	977,756
Total Gross Unrealized Losses	(17,441)	(13,375)
Held-to-Maturity Securities, Continuous Unrealized Loss Position [Abstract]
Due in One Year or Less	27,855
Less Than 12 Months, Fair Value	1,855,387	1,379,654
Less than 12 Months, Gross Unrealized Losses	(30,571)	(10,607)
12 Months or Longer, Fair Value	265,963	537,622
12 Months or Longer, Gross Unrealized Losses	(9,173)	(16,488)
Total, Fair Value	2,121,350	1,917,276
Total Gross Unrealized Losses	$ (39,744)	(27,095)
Number of Investment Securities in Unrealized Loss Position | security	307
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	$ 143,715	144,260
Less Than 12 Months, Gross Unrealized Losses	(562)	(822)
12 Months or Longer, Fair Value	89,211	5,452
12 Months or Longer, Gross Unrealized Losses	(732)	(16)
Total Fair Value	232,926	149,712
Total Gross Unrealized Losses	(1,294)	(838)
Debt Securities Issued by States and Political Subdivisions
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	211,188	72,248
Less Than 12 Months, Gross Unrealized Losses	(1,873)	(252)
12 Months or Longer, Fair Value	6,725	6,798
12 Months or Longer, Gross Unrealized Losses	(14)	(52)
Total Fair Value	217,913	79,046
Total Gross Unrealized Losses	(1,887)	(304)
Debt Securities Issued by Corporations
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	67,332	101,269
Less Than 12 Months, Gross Unrealized Losses	(714)	(1,747)
12 Months or Longer, Fair Value	196,838	162,304
12 Months or Longer, Gross Unrealized Losses	(3,156)	(2,755)
Total Fair Value	264,170	263,573
Total Gross Unrealized Losses	(3,870)	(4,502)
Mortgage-Backed Securities
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	440,837	377,282
Less Than 12 Months, Gross Unrealized Losses	(5,471)	(2,394)
12 Months or Longer, Fair Value	91,605	108,143
12 Months or Longer, Gross Unrealized Losses	(4,919)	(5,337)
Total Fair Value	532,442	485,425
Total Gross Unrealized Losses	(10,390)	(7,731)
Residential - Government Agencies
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	38,355	30,679
Less Than 12 Months, Gross Unrealized Losses	(89)	(130)
12 Months or Longer, Fair Value	11,185	9,117
12 Months or Longer, Gross Unrealized Losses	(1,056)	(1,137)
Total Fair Value	49,540	39,796
Total Gross Unrealized Losses	(1,145)	(1,267)
Residential - U.S. Government Sponsored Enterprises
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	397,385	346,603
Less Than 12 Months, Gross Unrealized Losses	(5,218)	(2,264)
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total Fair Value	397,385	346,603
Total Gross Unrealized Losses	(5,218)	(2,264)
Commercial - Government Agencies
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	5,097	0
Less Than 12 Months, Gross Unrealized Losses	(164)	0
12 Months or Longer, Fair Value	80,420	99,026
12 Months or Longer, Gross Unrealized Losses	(3,863)	(4,200)
Total Fair Value	85,517	99,026
Total Gross Unrealized Losses	(4,027)	(4,200)
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	169,926	264,747
Less than 12 Months, Gross Unrealized Losses	(771)	(1,139)
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total, Fair Value	169,926	264,747
Total Gross Unrealized Losses	(771)	(1,139)
Debt Securities Issued by Corporations
Held-to-Maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	69,601	28,218
Less than 12 Months, Gross Unrealized Losses	(971)	(66)
12 Months or Longer, Fair Value	15,933	71,208
12 Months or Longer, Gross Unrealized Losses	(557)	(1,975)
Total, Fair Value	85,534	99,426
Total Gross Unrealized Losses	(1,528)	(2,041)
Mortgage-Backed Securities
Held-to-Maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	1,615,860	1,086,689
Less than 12 Months, Gross Unrealized Losses	(28,829)	(9,402)
12 Months or Longer, Fair Value	250,030	466,414
12 Months or Longer, Gross Unrealized Losses	(8,616)	(14,513)
Total, Fair Value	1,865,890	1,553,103
Total Gross Unrealized Losses	(37,445)	(23,915)
Residential - Government Agencies
Held-to-Maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	835,227	562,502
Less than 12 Months, Gross Unrealized Losses	(15,313)	(5,828)
12 Months or Longer, Fair Value	231,377	414,207
12 Months or Longer, Gross Unrealized Losses	(8,548)	(13,239)
Total, Fair Value	1,066,604	976,709
Total Gross Unrealized Losses	(23,861)	(19,067)
Residential - U.S. Government Sponsored Enterprises
Held-to-Maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	693,047	450,147
Less than 12 Months, Gross Unrealized Losses	(10,919)	(2,616)
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total, Fair Value	693,047	450,147
Total Gross Unrealized Losses	(10,919)	(2,616)
Commercial - Government Agencies
Held-to-Maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	87,586	74,040
Less than 12 Months, Gross Unrealized Losses	(2,597)	(958)
12 Months or Longer, Fair Value	18,653	52,207
12 Months or Longer, Gross Unrealized Losses	(68)	(1,274)
Total, Fair Value	106,239	126,247
Total Gross Unrealized Losses	$ (2,665)	$ (2,232)

Investment Securities (Interest

Investment Securities (Interest Income - Taxable/Non-Taxable Invest. Sec.) (Details 5) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Interest Income from Investment Securities, Taxable	$ 100,541	$ 109,912	$ 127,128
Interest Income from Investment Securities, Non-Taxable	20,438	21,230	21,207
Total Interest Income from Investment Securities	$ 120,979	$ 131,142	$ 148,335

Investment Securities (Municipa

Investment Securities (Municipal Bond Narrative) (Details 6) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
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	$ 521.8
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	56.00%
Hawaiian Municipal Debt Securities | Investment Concentration Risk | HAWAII | General Obligation Bond
Schedule of Available-for-sale Securities [Line Items]
Concentration Risk, Percentage	77.00%
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%

Investment Securities (FHLB and

Investment Securities (FHLB and FRB Stocks) (Details 7) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Federal Home Loan Bank Stock	$ 20,000	$ 19,000
Federal Reserve Bank Stock	20,063	19,836
Total	$ 40,063	$ 38,836

Investment Securities (Visa Cla

Investment Securities (Visa Class B Restricted Shares Narrative) (Details 8) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)shares	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Net Investment Income [Line Items]
Net Gains on Sales of Investment Securities | $	$ 10,203	$ 10,160	$ 8,063
Visa Class B Restricted Securities
Net Investment Income [Line Items]
Conversion ratio to Class A shares	1.6483
Net Gains on Sales of Investment Securities | $	$ 11,200
Sale of investment securities, shares	100,000
Equity securities remaining, shares	180,914
Visa Class A Unrestricted Securities
Net Investment Income [Line Items]
Equity securities remaining, shares	298,201

Loans and Leases and the Allo64

Loans and Leases and the Allowance for Loan and Lease Losses (Loans and Leases Portolio & Narrative) (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loan and lease portfolio
Loans and Leases	$ 8,949,785	$ 7,878,985	$ 6,897,589
Unearned income on loans and leases	36,300	47,300
Commercial loans and residential mortgage loans pledged to secure an undrawn FRB line of credit	1,100,000	1,000,000
Residential mortgage loans pledged under a blanket pledge arrangement to secure FHLB advance	2,300,000	1,700,000
Net gains related to sales of residential mortgage loans	11,800	5,900	2,400
Commercial
Loan and lease portfolio
Loans and Leases	3,617,692	3,153,852	2,828,128
Commercial | Commercial and Industrial
Loan and lease portfolio
Loans and Leases	1,249,791	1,115,168
Commercial | Commercial Mortgage
Loan and lease portfolio
Loans and Leases	1,889,551	1,677,147
Commercial | Construction
Loan and lease portfolio
Loans and Leases	270,018	156,660
Commercial | Lease Financing
Loan and lease portfolio
Loans and Leases	208,332	204,877
Consumer
Loan and lease portfolio
Loans and Leases	5,332,093	4,725,133	$ 4,069,461
Consumer | Residential Mortgage
Loan and lease portfolio
Loans and Leases	3,163,073	2,925,605
Consumer | Home Equity
Loan and lease portfolio
Loans and Leases	1,334,163	1,069,400
Consumer | Automobile
Loan and lease portfolio
Loans and Leases	454,333	381,735
Consumer | Other
Loan and lease portfolio
Loans and Leases	$ 380,524	$ 348,393

Loans and Leases and the Allo65

Loans and Leases and the Allowance for Loan and Lease Losses (Allowance for Loan and Lease Losses) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Loan and Lease Losses:
Balance at the Beginning of Period	$ 102,880	$ 108,688	$ 115,454
Loans and Leases Charged-Off	(18,509)	(16,439)	(15,439)
Recoveries on Loans and Leases Previously Charged-Off	15,152	9,631	13,537
Net Loans and Leases Recovered (Charged-Off)	(3,357)	(6,808)	(1,902)
Provision for Credit Losses	4,750	1,000	(4,864)
Balance at End of Period	104,273	102,880	108,688
Allowance for Loan and Lease Losses:
Individually Evaluated for Impairment				$ 3,555	$ 3,578	$ 5,948
Collectively Evaluated for Impairment				100,718	99,302	102,740
Total	102,880	108,688	115,454	104,273	102,880	108,688
Recorded Investment in Loans and Leases:
Individually Evaluated for Impairment				60,698	66,697	64,747
Collectively Evaluated for Impairment				8,889,087	7,812,288	6,832,842
Total Loans and Leases				8,949,785	7,878,985	6,897,589
Commercial
Allowance for Loan and Lease Losses:
Balance at the Beginning of Period	60,714	64,551	71,446
Loans and Leases Charged-Off	(865)	(954)	(2,068)
Recoveries on Loans and Leases Previously Charged-Off	8,137	2,173	4,721
Net Loans and Leases Recovered (Charged-Off)	7,272	1,219	2,653
Provision for Credit Losses	(2,306)	(5,056)	(9,548)
Balance at End of Period	65,680	60,714	64,551
Allowance for Loan and Lease Losses:
Individually Evaluated for Impairment				45	205	2,387
Collectively Evaluated for Impairment				65,635	60,509	62,164
Total	60,714	64,551	71,446	65,680	60,714	64,551
Recorded Investment in Loans and Leases:
Individually Evaluated for Impairment				21,572	27,950	25,116
Collectively Evaluated for Impairment				3,596,120	3,125,902	2,803,012
Total Loans and Leases				3,617,692	3,153,852	2,828,128
Consumer
Allowance for Loan and Lease Losses:
Balance at the Beginning of Period	42,166	44,137	44,008
Loans and Leases Charged-Off	(17,644)	(15,485)	(13,371)
Recoveries on Loans and Leases Previously Charged-Off	7,015	7,458	8,816
Net Loans and Leases Recovered (Charged-Off)	(10,629)	(8,027)	(4,555)
Provision for Credit Losses	7,056	6,056	4,684
Balance at End of Period	38,593	42,166	44,137
Allowance for Loan and Lease Losses:
Individually Evaluated for Impairment				3,510	3,373	3,561
Collectively Evaluated for Impairment				35,083	38,793	40,576
Total	$ 42,166	$ 44,137	$ 44,008	38,593	42,166	44,137
Recorded Investment in Loans and Leases:
Individually Evaluated for Impairment				39,126	38,747	39,631
Collectively Evaluated for Impairment				5,292,967	4,686,386	4,029,830
Total Loans and Leases				$ 5,332,093	$ 4,725,133	$ 4,069,461

Loans and Leases and the Allo66

Loans and Leases and the Allowance for Loan and Lease Losses (Credit Quality Indicators & Narrative) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	$ 8,949,785	$ 7,878,985	$ 6,897,589
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 (in months)	6 months
Residential Mortgage | Classified
Recorded investment in loans and leases by class and by credit quality indicator
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
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	$ 3,617,692	3,153,852	2,828,128
Commercial | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	3,466,817	3,010,495
Commercial | Special Mention
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	91,210	71,906
Commercial | Classified
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	59,665	71,451
Commercial | Commercial and Industrial
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	1,249,791	1,115,168
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	1,203,025	1,059,475
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	20,253	28,076
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	26,513	27,617
Commercial | Commercial Mortgage
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	1,889,551	1,677,147
Commercial | Commercial Mortgage | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	1,792,119	1,591,696
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	66,734	43,674
Commercial | Commercial Mortgage | Classified
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	30,698	41,777
Commercial | Construction
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	270,018	156,660
Commercial | Construction | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	264,287	154,976
Commercial | Construction | Special Mention
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	4,218	80
Commercial | Construction | Classified
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	1,513	1,604
Commercial | Lease Financing
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	208,332	204,877
Commercial | Lease Financing | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	207,386	204,348
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	5	76
Commercial | Lease Financing | Classified
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	941	453
Consumer
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	5,332,093	4,725,133	$ 4,069,461
Consumer | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	5,310,202	4,704,050
Consumer | Special Mention
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	$ 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	$ 18,927	21,083
Consumer | Residential Mortgage
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	3,163,073	2,925,605
Consumer | Residential Mortgage | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	3,149,294	2,910,667
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
Consumer | 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
Total Recorded Investment in Loans and Leases	$ 13,779	14,938
Consumer | Home Equity
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	1,334,163	1,069,400
Consumer | Home Equity | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	1,327,676	1,064,253
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	$ 2,964
Consumer | 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
Total Recorded Investment in Loans and Leases	$ 3,523	5,147
Consumer | Automobile
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	454,333	381,735
Consumer | Automobile | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	453,439	381,420
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
Consumer | Automobile | Classified
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	894	315
Consumer | Other
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	380,524	348,393
Consumer | Other | Pass
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	379,793	347,710
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
Consumer | Other | Classified
Recorded investment in loans and leases by class and by credit quality indicator
Total Recorded Investment in Loans and Leases	$ 731	$ 683

Loans and Leases and the Allo67

Loans and Leases and the Allowance for Loan and Lease Losses (Aging Analysis) (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	$ 18,075	$ 27,977
Total Past Due and Non-Accrual	67,494	70,958
Current	8,882,291	7,808,027
Total Loans and Leases	8,949,785	7,878,985	$ 6,897,589
Non-Accrual Loans and Leases that are Current	$ 3,059	7,108
Number of days non-accrual loans and leases are not past due	30 days
30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	$ 35,272	25,871
60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	7,077	9,536
Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	7,070	7,574
Commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	1,148	9,298
Total Past Due and Non-Accrual	13,007	14,167
Current	3,604,685	3,139,685
Total Loans and Leases	3,617,692	3,153,852	2,828,128
Non-Accrual Loans and Leases that are Current	416	3,342
Commercial | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	10,826	4,483
Commercial | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,033	386
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	151	5,829
Total Past Due and Non-Accrual	11,865	7,306
Current	1,237,926	1,107,862
Total Loans and Leases	1,249,791	1,115,168
Non-Accrual Loans and Leases that are Current	0	452
Commercial | Commercial and Industrial | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	10,698	1,118
Commercial | Commercial and Industrial | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,016	359
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	997	3,469
Total Past Due and Non-Accrual	1,142	4,741
Current	1,888,409	1,672,406
Total Loans and Leases	1,889,551	1,677,147
Non-Accrual Loans and Leases that are Current	416	2,890
Commercial | Commercial Mortgage | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	128	1,245
Commercial | Commercial Mortgage | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	17	27
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	2,120
Current	270,018	154,540
Total Loans and Leases	270,018	156,660
Non-Accrual Loans and Leases that are Current	0	0
Commercial | Construction | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	2,120
Commercial | Construction | 60 to 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	208,332	204,877
Total Loans and Leases	208,332	204,877
Non-Accrual Loans and Leases that are Current	0	0
Commercial | Lease Financing | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	0	0
Commercial | Lease Financing | 60 to 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	16,927	18,679
Total Past Due and Non-Accrual	54,487	56,791
Current	5,277,606	4,668,342
Total Loans and Leases	5,332,093	4,725,133	$ 4,069,461
Non-Accrual Loans and Leases that are Current	2,643	3,766
Consumer | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	24,446	21,388
Consumer | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	6,044	9,150
Consumer | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	7,070	7,574
Consumer | Residential Mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	13,780	14,598
Total Past Due and Non-Accrual	23,504	30,192
Current	3,139,569	2,895,413
Total Loans and Leases	3,163,073	2,925,605
Non-Accrual Loans and Leases that are Current	1,628	2,056
Consumer | Residential Mortgage | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	6,491	7,148
Consumer | Residential Mortgage | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	106	3,993
Consumer | Residential Mortgage | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	3,127	4,453
Consumer | Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	3,147	4,081
Total Past Due and Non-Accrual	9,911	11,553
Current	1,324,252	1,057,847
Total Loans and Leases	1,334,163	1,069,400
Non-Accrual Loans and Leases that are Current	1,015	1,710
Consumer | Home Equity | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	3,063	3,856
Consumer | Home Equity | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,244	1,906
Consumer | Home Equity | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,457	1,710
Consumer | Automobile
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	0	0
Total Past Due and Non-Accrual	14,748	10,221
Current	439,585	371,514
Total Loans and Leases	454,333	381,735
Non-Accrual Loans and Leases that are Current	0	0
Consumer | Automobile | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	11,692	8,103
Consumer | Automobile | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	2,162	1,803
Consumer | Automobile | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	894	315
Consumer | Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Non-Accrual	0	0
Total Past Due and Non-Accrual	6,324	4,825
Current	374,200	343,568
Total Loans and Leases	380,524	348,393
Non-Accrual Loans and Leases that are Current	0	0
Consumer | Other | 30 to 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	3,200	2,281
Consumer | Other | 60 to 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	1,532	1,448
Consumer | Other | Past Due 90 Days or More
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Days Past Due	$ 1,592	$ 1,096

Loans and Leases and the Allo68

Loans and Leases and the Allowance for Loan and Lease Losses (Impaired Loans) (Details 5) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Impaired Loans Information:
Impaired Loans with No Related Allowance, Recorded Investment	$ 20,442	$ 26,661
Impaired Loans with No Related Allowance, Unpaid Principal Balance	30,904	43,723
Impaired Loans with Related Allowance, Recorded Investment	40,256	40,036
Impaired Loans with Related Allowance, Unpaid Principal Balance	45,246	45,749
Related Allowance for Loan Losses	3,555	3,578
Recorded Investment	60,698	66,697
Unpaid Principal Balance	76,150	89,472
Impaired Loans with No Related Allowance, Average Recorded Investment	22,225	21,757
Impaired Loans with No Related Allowance, Interest Income Recognized	903	780
Impaired Loans with Related Allowance, Average Recorded Investment	39,898	44,601
Impaired Loans with Related Allowance, Interest Income Recognized	1,805	1,816
Average Recorded Investment	62,123	66,358	$ 68,100
Interest Income Recognized	2,708	2,596	$ 2,300
Commercial
Impaired Loans Information:
Impaired Loans with No Related Allowance, Recorded Investment	20,442	26,661
Impaired Loans with No Related Allowance, Unpaid Principal Balance	30,904	43,723
Impaired Loans with Related Allowance, Recorded Investment	1,130	1,289
Impaired Loans with Related Allowance, Unpaid Principal Balance	1,130	1,289
Related Allowance for Loan Losses	45	205
Recorded Investment	21,572	27,950
Unpaid Principal Balance	32,034	45,012
Impaired Loans with No Related Allowance, Average Recorded Investment	22,225	21,757
Impaired Loans with No Related Allowance, Interest Income Recognized	903	780
Impaired Loans with Related Allowance, Average Recorded Investment	1,090	5,379
Impaired Loans with Related Allowance, Interest Income Recognized	81	98
Average Recorded Investment	23,315	27,136
Interest Income Recognized	984	878
Commercial | Commercial and Industrial
Impaired Loans Information:
Impaired Loans with No Related Allowance, Recorded Investment	9,556	14,650
Impaired Loans with No Related Allowance, Unpaid Principal Balance	16,518	28,212
Impaired Loans with Related Allowance, Recorded Investment	765	1,289
Impaired Loans with Related Allowance, Unpaid Principal Balance	765	1,289
Related Allowance for Loan Losses	24	205
Impaired Loans with No Related Allowance, Average Recorded Investment	10,760	12,589
Impaired Loans with No Related Allowance, Interest Income Recognized	463	406
Impaired Loans with Related Allowance, Average Recorded Investment	939	5,379
Impaired Loans with Related Allowance, Interest Income Recognized	72	98
Commercial | Commercial Mortgage
Impaired Loans Information:
Impaired Loans with No Related Allowance, Recorded Investment	9,373	10,407
Impaired Loans with No Related Allowance, Unpaid Principal Balance	12,873	13,907
Impaired Loans with Related Allowance, Recorded Investment	365
Impaired Loans with Related Allowance, Unpaid Principal Balance	365
Related Allowance for Loan Losses	21
Impaired Loans with No Related Allowance, Average Recorded Investment	9,906	7,521
Impaired Loans with No Related Allowance, Interest Income Recognized	339	268
Impaired Loans with Related Allowance, Average Recorded Investment	151	0
Impaired Loans with Related Allowance, Interest Income Recognized	9	0
Commercial | Construction
Impaired Loans Information:
Impaired Loans with No Related Allowance, Recorded Investment	1,513	1,604
Impaired Loans with No Related Allowance, Unpaid Principal Balance	1,513	1,604
Impaired Loans with No Related Allowance, Average Recorded Investment	1,559	1,647
Impaired Loans with No Related Allowance, Interest Income Recognized	101	106
Consumer
Impaired Loans Information:
Impaired Loans with Related Allowance, Recorded Investment	39,126	38,747
Impaired Loans with Related Allowance, Unpaid Principal Balance	44,116	44,460
Related Allowance for Loan Losses	3,510	3,373
Recorded Investment	39,126	38,747
Unpaid Principal Balance	44,116	44,460
Impaired Loans with Related Allowance, Average Recorded Investment	38,808	39,222
Impaired Loans with Related Allowance, Interest Income Recognized	1,724	1,718
Average Recorded Investment	38,808	39,222
Interest Income Recognized	1,724	1,718
Consumer | Residential Mortgage
Impaired Loans Information:
Impaired Loans with Related Allowance, Recorded Investment	25,625	28,981
Impaired Loans with Related Allowance, Unpaid Principal Balance	30,615	34,694
Related Allowance for Loan Losses	3,224	3,171
Impaired Loans with Related Allowance, Average Recorded Investment	27,436	30,895
Impaired Loans with Related Allowance, Interest Income Recognized	962	1,133
Consumer | Home Equity
Impaired Loans Information:
Impaired Loans with Related Allowance, Recorded Investment	1,516	1,089
Impaired Loans with Related Allowance, Unpaid Principal Balance	1,516	1,089
Related Allowance for Loan Losses	15	12
Impaired Loans with Related Allowance, Average Recorded Investment	1,395	1,137
Impaired Loans with Related Allowance, Interest Income Recognized	66	42
Consumer | Automobile
Impaired Loans Information:
Impaired Loans with Related Allowance, Recorded Investment	9,660	7,012
Impaired Loans with Related Allowance, Unpaid Principal Balance	9,660	7,012
Related Allowance for Loan Losses	206	143
Impaired Loans with Related Allowance, Average Recorded Investment	7,974	5,992
Impaired Loans with Related Allowance, Interest Income Recognized	522	432
Consumer | Other
Impaired Loans Information:
Impaired Loans with Related Allowance, Recorded Investment	2,325	1,665
Impaired Loans with Related Allowance, Unpaid Principal Balance	2,325	1,665
Related Allowance for Loan Losses	65	47
Impaired Loans with Related Allowance, Average Recorded Investment	2,003	1,198
Impaired Loans with Related Allowance, Interest Income Recognized	$ 174	$ 111

Loans and Leases and the Allo69

Loans and Leases and the Allowance for Loan and Lease Losses (Troubled Debt Restrucuring & Narrative) (Details 6) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)contract	Dec. 31, 2015USD ($)contract
Information related to loans modified as a TDR
Recorded Investment (narrative)	$ 60,000	$ 65,000
Available Commitments to Lend Additional Funds on Loans Modified as TDR	$ 400	$ 0
Number of Contracts | contract	485	388
Recorded Investment (as of period end)	$ 14,381	$ 19,438
Increase in Allowance (as of period end)	$ 723	$ 216
Residential Mortgage | Maximum
Information related to loans modified as a TDR
Period of Time Loan Being Fully amortized	40 years
Land Loans | 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	7	34
Recorded Investment (as of period end)	$ 3,729	$ 9,721
Increase in Allowance (as of period end)	$ 41	$ 1
Commercial | Commercial and Industrial
Information related to loans modified as a TDR
Number of Contracts | contract	6	30
Recorded Investment (as of period end)	$ 3,525	$ 5,414
Increase in Allowance (as of period end)	$ 21	$ 1
Commercial | Commercial Mortgage
Information related to loans modified as a TDR
Number of Contracts | contract	1	4
Recorded Investment (as of period end)	$ 204	$ 4,307
Increase in Allowance (as of period end)	$ 20	$ 0
Consumer
Information related to loans modified as a TDR
Number of Contracts | contract	478	354
Recorded Investment (as of period end)	$ 10,652	$ 9,717
Increase in Allowance (as of period end)	$ 682	$ 215
Consumer | Residential Mortgage
Information related to loans modified as a TDR
Number of Contracts | contract	10	13
Recorded Investment (as of period end)	$ 3,146	$ 4,255
Increase in Allowance (as of period end)	$ 522	$ 99
Consumer | Home Equity
Information related to loans modified as a TDR
Number of Contracts | contract	2	3
Recorded Investment (as of period end)	$ 651	$ 367
Increase in Allowance (as of period end)	$ 7	$ 4
Consumer | Automobile
Information related to loans modified as a TDR
Number of Contracts | contract	267	170
Recorded Investment (as of period end)	$ 5,451	$ 3,996
Increase in Allowance (as of period end)	$ 116	$ 81
Consumer | Other
Information related to loans modified as a TDR
Number of Contracts | contract	199	168
Recorded Investment (as of period end)	$ 1,404	$ 1,099
Increase in Allowance (as of period end)	$ 37	$ 31

Loans and Leases and the Allo70

Loans and Leases and the Allowance for Loan and Lease Losses (Troubled Debt Restructuring's that Defaulted During the Period) (Details 7) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)contract	Dec. 31, 2015USD ($)contract
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	64	37
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 2,253	$ 6,711
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	0	2
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 0	$ 4,924
Commercial | Commercial and Industrial
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	$ 4,924
Consumer
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	64	35
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 2,253	$ 1,787
Consumer | Residential Mortgage
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	4	4
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 1,445	$ 1,449
Consumer | Home Equity
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	1	0
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 157	$ 0
Consumer | Automobile
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	19	10
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 373	$ 220
Consumer | Other
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	40	21
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 278	$ 118

Loans and Leases and the Allo71

Loans and Leases and the Allowance for Loan and Lease Losses (Foreclosure Proceedings Narrative) (Details 8) $ in Millions	Dec. 31, 2016USD ($)
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	$ 6.6

Mortgage Servicing Rights (Narr

Mortgage Servicing Rights (Narrative) (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Transfers and Servicing of Financial Assets [Abstract]
Residential Mortgage Loans Serviced for Third Parties	$ 2,700	$ 2,700	$ 2,900
Servicing income, including late and ancillary fees	$ 6.9	$ 7.2	$ 7.9

Mortgage Servicing Rights (Fair

Mortgage Servicing Rights (Fair value method rollforward) (Details 2) - Mortgage Servicing Rights - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Change in fair value of the mortgage servicing rights accounted for under the fair value measurement method
Balance at Beginning of Year	$ 1,970	$ 2,604	$ 3,826
Changes in Fair Value:
Due to Change in Valuation Assumptions	0	(251)	(869)
Due to Payoffs	(315)	(383)	(353)
Total Changes in Fair Value of Mortgage Servicing Rights	(315)	(634)	(1,222)
Balance at End of Year	$ 1,655	$ 1,970	$ 2,604

Mortgage Servicing Rights (Amor

Mortgage Servicing Rights (Amortization method rollforward) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Valuation Allowance [Roll Forward]
Balance at Beginning of Year	$ (21)
Balance at End of Year	0	$ (21)
Mortgage Servicing Rights
Change in Carrying Value of Mortgage Servicing Rights Accounted for Under the Amortization Method, Net of a Valuation Allowance
Balance at beginning of Year	21,032	22,091	$ 24,297
Servicing Rights that Resulted From Asset Transfers	3,847	1,737	747
Amortization	(2,892)	(2,832)	(2,896)
Valuation Allowance Provision	21	36	(57)
Balance at end of Year	22,008	21,032	22,091
Valuation Allowance [Roll Forward]
Balance at Beginning of Year	(21)	(57)	0
Valuation Allowance Provision	21	36	(57)
Balance at End of Year	0	(21)	(57)
Fair Value:
Balance at Beginning of Year	24,804	22,837	30,100
Balance at End of Year	$ 25,148	$ 24,804	$ 22,837

Mortgage Servicing Rights (Key

Mortgage Servicing Rights (Key assumptions) (Details 4) - Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Key assumptions used in estimating the fair value of mortgage servicing rights
Weighted-Average Constant Prepayment Rate (as a percent)	8.13%	9.10%
Weighted-Average Life (in years)	7 years 5 months 5 days	7 years 4 months 26 days
Weighted-Average Note Rate (as a percent)	4.10%	4.23%
Weighted-Average Discount Rate (as a percent)	9.33%	9.38%

Mortgage Servicing Rights (Sens

Mortgage Servicing Rights (Sensitivity analysis) (Details 5) - Mortgage Servicing Rights - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Constant Prepayment Rate
Decrease in fair value from 25 basis points ("bps") adverse change	$ (321)	$ (285)
Decrease in fair value from 50 bps adverse change	(636)	(566)
Discount Rate
Decrease in fair value from 25 bps adverse change	(288)	(292)
Decrease in fair value from 50 bps adverse change	$ (570)	$ (577)

Premises and Equipment (Details

Premises and Equipment (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Premises and Equipment
Cost	$ 445,094	$ 440,216
Accumulated Depreciation and Amortization	(331,589)	(329,017)
Net Book Value	113,505	111,199
Depreciation and amortization (including capital lease amortization) included in noninterest expense	12,900	12,800	$ 12,400
Premises
Premises and Equipment
Cost	321,144	322,552
Accumulated Depreciation and Amortization	(240,567)	(238,912)
Net Book Value	80,577	83,640
Impairment charge	0	0	$ 0
Equipment
Premises and Equipment
Cost	117,356	111,071
Accumulated Depreciation and Amortization	(87,021)	(86,176)
Net Book Value	30,335	24,895
Capital leases
Premises and Equipment
Cost	6,594	6,593
Accumulated Depreciation and Amortization	(4,001)	(3,929)
Net Book Value	$ 2,593	$ 2,664

Other Assets (Details 1)

Other Assets (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Components of Other Assets
Federal Home Loan Bank and Federal Reserve Bank Stock	$ 40,063	$ 38,836
Derivative Financial Instruments	13,731	13,967
Low-Income Housing and Other Equity Investments	78,900	79,033
Deferred Compensation Plan Assets	21,952	20,262
Prepaid Expenses	7,355	8,262
Accounts Receivable	12,584	12,539
Other	20,123	26,493
Total Other Assets	$ 194,708	$ 199,392

Time Deposits (Details 1)

Time Deposits (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Time deposits classified according to the contractual maturities
2,017	$ 865,027
2,018	167,782
2,019	52,324
2,020	20,012
2,021	101,904
Thereafter	10,658
Total	1,217,707	$ 1,177,651
Time deposits with balances of $100,000 or more, classified according to the contractual maturities
Three Months or Less	268,865
Over Three Months through Six Months	282,130
Over Six Months through Twelve Months	186,157
Over Twelve Months	234,405
Total	971,557	900,000
Government entity deposits	$ 1,100,000	$ 1,200,000

Borrowings (Short-term borrowin

Borrowings (Short-term borrowings) (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Short-term Borrowings
Securities Sold Under Agreements to Repurchase	$ 523,378	$ 628,857
Funds Purchased
Short-term Borrowings
Amounts Outstanding	$ 9,616	$ 7,333
Weighted Average Interest Rate (as a percent)	0.15%	0.14%
Securities Sold Under Agreements to Repurchase
Short-term Borrowings
Amounts Outstanding	$ 23,278	$ 3,992
Weighted Average Interest Rate (as a percent)	0.31%	0.06%
Long-term Repurchase Agreements with Government Entities
Short-term Borrowings
Securities Sold Under Agreements to Repurchase	$ 100	$ 49,900
Long-term Repurchase Agreements with Private Institutions
Short-term Borrowings
Securities Sold Under Agreements to Repurchase	$ 500,000	$ 575,000

Borrowings (Narrative) (Details

Borrowings (Narrative) (Details 2) $ in Thousands	Dec. 31, 2016USD ($)DY	Dec. 31, 2015USD ($)
Securities sold under repurchase agreements
Securities Sold Under Agreements to Repurchase	$ 523,378	$ 628,857
Long-term Repurchase Agreements with Government Entities
Securities sold under repurchase agreements
Securities Sold Under Agreements to Repurchase	$ 100	49,900
Repurchase agreements, Weighted average interest rate (as a percent)	0.15%
Repurchase agreements, Weighted average maturity period (in days or years) | D	4
Long-term Repurchase Agreements with Private Institutions
Securities sold under repurchase agreements
Securities Sold Under Agreements to Repurchase	$ 500,000	$ 575,000
Repurchase agreements, Weighted average interest rate (as a percent)	4.14%
Repurchase agreements, Weighted average maturity period (in days or years) | Y	3
Repurchase agreements, Decreased weighted average maturity period if agreements terminated at earlier specified dates (in years) | Y	1.6

Other Debt (Details 1)

Other Debt (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Other Debt
Federal Home Loan Bank, Advances, Weighted Average Interest Rate (as a percent)	1.28%
Total	$ 267,938	$ 245,786
Maximum percentage of the total assets that can be borrowed from the FHLB by the entity	35.00%
Federal Home Loan Bank Advance
Other Debt
Federal Home Loan Bank Advances	$ 250,000	225,000
Undrawn line of credit with the FHLB or FRB	1,700,000
Non-Recourse Debt
Other Debt
Non-Recourse Debt	$ 7,153	9,938
Non-recourse Debt, Stated fixed interest rate (as a percent)	6.30%
Capital Lease Obligations
Other Debt
Capital Lease Obligations	$ 10,785	$ 10,848
Lease term (in years)	60 years
Fixed lease payments through December 2022	$ 800
Federal Reserve Bank Advance
Other Debt
Undrawn line of credit with the FHLB or FRB	$ 625,700

Other Debt (Excluding capital l

Other Debt (Excluding capital lease obligation, annual maturities) (Details 2) - Non-Recourse Debt and Federal Home Loan Bank Advance $ in Thousands	Dec. 31, 2016USD ($)
Annual Maturities of Other Debt Exclusive of Capital Lease Obligations
2,017	$ 0
2,018	175,000
2,019	50,000
2,020	28,464
2,021	3,689
Thereafter	0
Total	$ 257,153

Shareholders' Equity (Capital)

Shareholders' Equity (Capital) (Details 1) $ / shares in Units, $ in Thousands	2 Months Ended	12 Months Ended			186 Months Ended
	Feb. 15, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)Y$ / sharesshares	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2013USD ($)
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]
Shareholders' Equity		$ 1,161,537	$ 1,116,260	$ 1,055,086	$ 1,161,537	$ 1,011,976
Common Equity Tier One Capital		1,168,228	1,112,598		1,168,228
Tier 1 Capital		1,168,228	1,112,598		1,168,228
Total Capital		$ 1,278,528	$ 1,212,245		$ 1,278,528
Well Capitalized Minimum Common Equity Tier One Ratio (as a percent)		6.50%	6.50%		6.50%
Common Equity Tier One Ratio		13.24%	13.97%		13.24%
Well Capitalized Minimum Tier 1 Capital Ratio (as a percent)		8.00%	8.00%		8.00%
Tier 1 Capital Ratio (as a percent)		13.24%	13.97%		13.24%
Well Capitalized Minimum Total Capital Ratio (as a percent)		10.00%	10.00%		10.00%
Total Capital Ratio (as a percent)		14.49%	15.22%		14.49%
Well Capitalized Minimum Tier 1 Leverage Ratio (as a percent)		5.00%	5.00%		5.00%
Tier 1 Leverage Ratio (as a percent)		7.21%	7.26%		7.21%
Dividends
Number of prior calendar years considered for payment of dividends in excess of the sum of net income | Y		2
Common Stock Repurchase Program
Number of shares of common stock repurchased | shares		847,964			53,600,000
Amount returned to shareholders on stock repurchase		$ 61,807	$ 52,981	$ 64,046	$ 2,000,000
Average cost of shares repurchased (in dollars per share) | $ / shares		$ 68.42			$ 37.84
Treasury Stock Value Acquired Cost Method Share Repurchase Program		$ 58,000
Bank
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]
Shareholders' Equity		1,094,461	1,036,355		$ 1,094,461
Common Equity Tier One Capital		1,111,525	1,043,070		1,111,525
Tier 1 Capital		1,111,525	1,043,070		1,111,525
Total Capital		$ 1,221,683	$ 1,142,573		$ 1,221,683
Common Equity Tier One Ratio		12.61%	13.12%		12.61%
Tier 1 Capital Ratio (as a percent)		12.61%	13.12%		12.61%
Total Capital Ratio (as a percent)		13.86%	14.37%		13.86%
Tier 1 Leverage Ratio (as a percent)		6.86%	6.81%		6.86%
Subsequent Event
Common Stock Repurchase Program
Number of shares of common stock repurchased | shares	51,500
Amount returned to shareholders on stock repurchase	$ 4,400
Average cost of shares repurchased (in dollars per share) | $ / shares	$ 86.39

Shareholders' Equity (AOCI tax

Shareholders' Equity (AOCI tax effect) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Comprehensive Income, Before Tax:
Net Unrealized Gains (Losses) Arising During the Period	$ (18,647)	$ (5,448)	$ 28,609
(Gain) Loss on Sale, before Tax		(190)	(64)
Amortization of Unrealized Holding (Gains) Losses on HTM Securities	1,605	2,136	(703)
Net Unrealized Gains (Losses) on Investment Securities	(17,042)	(3,502)	27,842
Net Actuarial Gains (Losses) Arising During the Period	(954)	7,335	(20,286)
Amortization of Net Actuarial Losses (Gains)	1,224	1,624	1,256
Amortization of Prior Service Credit, before tax	(322)	(322)	(322)
Defined Benefit Plans, Net	(52)	8,637	(19,352)
Other Comprehensive Income (Loss)	(17,094)	5,135	8,490
Other Comprehensive Income, Tax Effect:
Net Unrealized Gains Arising During the Period	(7,358)	(2,138)	11,286
(Gain) Loss on Sale, Tax		(75)	(25)
Amortization of Unrealized Holding (Gains) Losses on HTM Securities	634	836	(277)
Net Unrealized Gains (Losses) on Investment Securities	(6,724)	(1,377)	10,984
Net Actuarial Gains (Losses) Arising During the Period	(377)	2,869	(8,000)
Amortization of Net Actuarial Losses (Gains)	483	641	496
Amortization of Prior Service Credit	(127)	(127)	(127)
Defined Benefit Plans, Net	(21)	3,383	(7,631)
Other Comprehensive Income (Loss)	(6,745)	2,006	3,353
Other Comprehensive Income, Net of Tax:
Net Unrealized Gains (Losses) Arising During the Period	(11,289)	(3,310)	17,323
(Gain) Loss on Sale, Net of Tax		(115)	(39)
Amortization of Unrealized Holding (Gains) Losses on HTM Securities after Tax	971	1,300	(426)
Net Unrealized Gains (Losses) on Investment Securities	(10,318)	(2,125)	16,858
Net Actuarial Losses Arising During the Period	(577)	4,466	(12,286)
Amortization of Net Actuarial Losses (Gains)	741	983	760
Amortization of Prior Service Credit	(195)	(195)	(195)
Defined Benefit Plans, Net	(31)	5,254	(11,721)
Other Comprehensive Income (Loss)	$ (10,349)	$ 3,129	$ 5,137

Shareholders' Equity (AOCI roll

Shareholders' Equity (AOCI rollforward) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	$ 1,116,260	$ 1,055,086	$ 1,011,976
Other Comprehensive Income (Loss)	(10,349)	3,129	5,137
Balance at End of Period	1,161,537	1,116,260	1,055,086
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(28,861)	(34,115)	(22,394)
Other Comprehensive Income (Loss) Before Reclassification	(577)	4,466	(12,286)
Amounts Reclassified from Accumulated Other Comprehensive Income	546	788	565
Other Comprehensive Income (Loss)	(31)	5,254	(11,721)
Balance at End of Period	(28,892)	(28,861)	(34,115)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at Beginning of Period	(23,557)	(26,686)	(31,823)
Other Comprehensive Income (Loss) Before Reclassification	(11,866)	1,156	5,037
Amounts Reclassified from Accumulated Other Comprehensive Income	1,517	1,973	100
Other Comprehensive Income (Loss)	(10,349)	3,129	5,137
Balance at End of Period	(33,906)	(23,557)	(26,686)
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	12,559	15,984	(1,300)
Other Comprehensive Income (Loss) Before Reclassification	(11,289)	(3,310)	17,323
Amounts Reclassified from Accumulated Other Comprehensive Income	0	(115)	(39)
Other Comprehensive Income (Loss)	(11,289)	(3,425)	17,284
Balance at End of Period	1,270	12,559	15,984
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	(7,255)	(8,555)	(8,129)
Other Comprehensive Income (Loss) Before Reclassification	0	0	0
Amounts Reclassified from Accumulated Other Comprehensive Income	971	1,300	(426)
Other Comprehensive Income (Loss)	971	1,300	(426)
Balance at End of Period	$ (6,284)	$ (7,255)	$ (8,555)

Shareholders' Equity (Income st

Shareholders' Equity (Income statement reclass) (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for Income Taxes	$ (78,133)	$ (70,498)	$ (74,596)
Salaries and Benefits	(201,150)	(191,963)	(183,028)
Net Income	181,461	160,704	163,042
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Income	(1,517)	(1,973)	(100)
Amortization of Unrealized Gains(Losses) of Investment Securities Transferred from AFS to HTM [Member] | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment Income, Interest	(1,605)	(2,136)	703
Provision for Income Taxes	634	836	(277)
Net Income	(971)	(1,300)	426
Sale of Investment Securities Available-for-Sale | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for Income Taxes	0	(75)	(25)
Available-for-sale Securities, Gross Realized Gain (Loss)	0	190	64
Net Income	0	115	39
Amortization of Defined Benefit Pension Items | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for Income Taxes	356	514	369
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(902)	(1,302)	(934)
Net Income	(546)	(788)	(565)
Prior Service Credit | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	322	322	322
Net Actuarial Losses | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Benefits	$ (1,224)	$ (1,624)	$ (1,256)

Earnings Per Share (Details 1)

Earnings Per Share (Details 1) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Denominator for Basic Earnings Per Share (in shares)	42,644,100	43,217,818	43,899,208
Dilutive Effect of Equity Based Awards (in shares)	235,683	237,059	226,248
Denominator for Diluted Earnings Per Share (in shares)	42,879,783	43,454,877	44,125,456
Antidilutive Stock Options and Restricted Stock Outstanding (in shares)	0	0	0

Business Segments (Details 1)

Business Segments (Details 1) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)atmbranch	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Business segment financial information
Federal and State Effective Tax Rate used for Segment Reporting	37.00%
Net Interest Income	$ 417,579	$ 394,087	$ 379,656
Provision for Credit Losses	4,750	1,000	(4,864)
Net Interest Income After Provision for Credit Losses	412,829	393,087	384,520
Noninterest Income	197,343	186,219	180,017
Noninterest Expense	(350,578)	(348,104)	(326,899)
Income Before Provision for Income Taxes	259,594	231,202	237,638
Provision for Income Taxes	(78,133)	(70,498)	(74,596)
Net Income	181,461	160,704	163,042
Total Assets	$ 16,492,367	15,455,016	14,787,208
Retail Banking
Business segment financial information
Number of branch locations through which products and services are delivered to customers | branch	69
Number of A T M s through which products and services delivered to customers | atm	449
Net Interest Income	$ 242,967	202,259	178,480
Provision for Credit Losses	10,700	8,033	4,783
Net Interest Income After Provision for Credit Losses	232,267	194,226	173,697
Noninterest Income	91,824	82,391	79,562
Noninterest Expense	(208,389)	(199,572)	(196,254)
Income Before Provision for Income Taxes	115,702	77,045	57,005
Provision for Income Taxes	(41,067)	(27,330)	(21,079)
Net Income	74,635	49,715	35,926
Total Assets	5,342,078	4,680,888	4,088,878
Commercial Banking
Business segment financial information
Net Interest Income	156,080	143,944	119,655
Provision for Credit Losses	(7,322)	(1,165)	(2,369)
Net Interest Income After Provision for Credit Losses	163,402	145,109	122,024
Noninterest Income	26,967	22,191	24,021
Noninterest Expense	(70,405)	(77,500)	(67,078)
Income Before Provision for Income Taxes	119,964	89,800	78,967
Provision for Income Taxes	(42,667)	(31,375)	(26,977)
Net Income	77,297	58,425	51,990
Total Assets	3,565,912	3,099,175	2,787,611
Investment Services
Business segment financial information
Net Interest Income	24,714	18,494	15,238
Provision for Credit Losses	(23)	(43)	(313)
Net Interest Income After Provision for Credit Losses	24,737	18,537	15,551
Noninterest Income	57,396	58,835	57,618
Noninterest Expense	(59,782)	(57,852)	(54,571)
Income Before Provision for Income Taxes	22,351	19,520	18,598
Provision for Income Taxes	(8,270)	(7,222)	(6,894)
Net Income	14,081	12,298	11,704
Total Assets	280,410	274,469	202,645
Treasury and Other
Business segment financial information
Net Interest Income	(6,182)	29,390	66,283
Provision for Credit Losses	1,395	(5,825)	(6,965)
Net Interest Income After Provision for Credit Losses	(7,577)	35,215	73,248
Noninterest Income	21,156	22,802	18,816
Noninterest Expense	(12,002)	(13,180)	(8,996)
Income Before Provision for Income Taxes	1,577	44,837	83,068
Provision for Income Taxes	13,871	(4,571)	(19,646)
Net Income	15,448	40,266	63,422
Total Assets	$ 7,303,967	$ 7,400,484	$ 7,708,074

Employee Benefits (Defined cont

Employee Benefits (Defined contribution plans) (Details1 )	12 Months Ended
	Dec. 31, 2016USD ($)components	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Defined Contribution Plans
Number of company contribution components, Retirement Savings Plan | components	3
Fixed percentage of employer's contribution based on eligible compensation	3.00%
Employee contribution limit per calendar year (as a percent of compensation)	50.00%
Employee's contribution matched by employer (in dollars)	$ 1
Employer match of employee contributions upto 2% of eligible compensation	$ 1.25
Percentage of eligible compensation, matched $1.25 for by employer for each dollar amount contributed by participants	2.00%
Employer match of employee contributions over 2% upto 5% of eligible compensation	$ 0.50
Percentage of eligible compensation, matched $0.50 for by employer for each dollar amount contributed by participants, low end of range	2.00%
Percentage of eligible compensation, matched $0.50 for by employer for each dollar amount contributed by participants, high end of range	5.00%
Total expense for all components of the company's defined contribution plans	$ 12,800,000	$ 12,000,000	$ 12,100,000

Employee Benefits (Defined bene

Employee Benefits (Defined benefit and postretirement benefit plans) (Details 2)	12 Months Ended
	Dec. 31, 2016USD ($)planY	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Pension Benefits
Employee benefits
Number of defined benefit plans | plan	2
Reconciliation of changes in benefit obligations
Benefit Obligation at Beginning of Year	$ 105,993,000	$ 114,707,000
Service Cost	0	0	$ 0
Interest Cost	4,882,000	4,655,000	4,975,000
Actuarial Losses (Gains)	2,708,000	(7,647,000)
Benefit Obligation at End of Year	107,593,000	105,993,000	114,707,000
Reconciliation of changes in fair value of plan assets
Fair Value of Plan Assets at Beginning of Year	83,858,000	90,154,000
Actual Return on Plan Assets	5,031,000	(1,058,000)
Employer Contributions	484,000	484,000
Employer Benefits Paid	(5,990,000)	(5,722,000)
Fair Value of Plan Assets at End of Year	83,383,000	83,858,000	90,154,000
Funded Status at End of Year	(24,210,000)	(22,135,000)
Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax
Net Actuarial Gains (Losses)	33,954,000	33,239,000
Prior Service Credit	0	0
Total Amounts Recognized in Accumulated Other Comprehensive Income, Net of Tax	$ (33,954,000)	(33,239,000)
Postretirement Benefits
Employee benefits
Retirees' age and above which Medicare supplemental plan subsidy is provided (in years) | Y	65
Limit on annual credit provided in HRA to eligible employees	$ 1,200
Reconciliation of changes in benefit obligations
Benefit Obligation at Beginning of Year	25,307,000	30,804,000
Service Cost	513,000	621,000	586,000
Interest Cost	1,134,000	1,155,000	1,325,000
Actuarial Losses (Gains)	(1,846,000)	(5,783,000)
Benefit Obligation at End of Year	24,308,000	25,307,000	30,804,000
Reconciliation of changes in fair value of plan assets
Fair Value of Plan Assets at Beginning of Year	0	0
Actual Return on Plan Assets	0	0
Employer Contributions	800,000	1,490,000
Employer Benefits Paid	(800,000)	(1,490,000)
Fair Value of Plan Assets at End of Year	0	0	$ 0
Funded Status at End of Year	(24,308,000)	(25,307,000)
Participants contributions	800,000	600,000
Amounts Recognized in Accumulated Other Comprehensive Income (Loss), Net of Tax
Net Actuarial Gains (Losses)	(4,647,000)	(3,768,000)
Prior Service Credit	415,000	610,000
Total Amounts Recognized in Accumulated Other Comprehensive Income, Net of Tax	5,062,000	4,378,000
Excess retirement Plan | Pension Benefits
Employee benefits
Accumulated benefit obligation	$ 4,000,000	$ 4,100,000

Employee Benefits (Components f

Employee Benefits (Components fo net Periodic benefit cost) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits
Net periodic benefit cost for pension plans and the postretirement benefit plan
Service Cost	$ 0	$ 0	$ 0
Interest Cost	4,882	4,655	4,975
Expected Return on Plan Assets	(5,121)	(5,222)	(5,100)
Amortization of Prior Service Credit	0	0	0
Amortization of Net Actuarial Losses (Gains)	1,617	1,713	1,408
Net Periodic Benefit Cost	1,378	$ 1,146	$ 1,283
Estimated amount expected to be amortized from accumulated other comprehensive income (loss) into net periodic benefit cost in next fiscal year
Net actuarial loss	$ 1,700
Weighted average assumptions used to determine the benefit obligations
Discount Rate (as a percent)	4.45%	4.70%
Weighted average assumptions used to determine the net periodic benefit cost
Discount rate (as a percent)	4.70%	4.25%	5.22%
Expected Long-Term Rate of Return on Plan Assets (as a percent)	6.00%	6.00%	6.00%
Health Care Cost Trend Rate (as a percent)	0.00%	0.00%	0.00%
Expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter
2,015	$ 6,478
2,016	6,604
2,017	6,842
2,018	6,999
2,019	7,116
Years 2020-2024	36,099
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	500
Postretirement Benefits
Net periodic benefit cost for pension plans and the postretirement benefit plan
Service Cost	513	$ 621	$ 586
Interest Cost	1,134	1,155	1,325
Expected Return on Plan Assets	0	0	0
Amortization of Prior Service Credit	(322)	(322)	(322)
Amortization of Net Actuarial Losses (Gains)	(393)	(89)	(152)
Net Periodic Benefit Cost	932	$ 1,365	$ 1,437
Estimated amount expected to be amortized from accumulated other comprehensive income (loss) into net periodic benefit cost in next fiscal year
Net gain and prior service credit	$ 800
Weighted average assumptions used to determine the benefit obligations
Discount Rate (as a percent)	4.57%	4.74%
Health Care Cost Trend Rate Assumed For Next Year (as a percent)	6.50%	6.70%
Ultimate health care cost trend rate (as a percent)	4.50%
Year that reaches the ultimate health care cost trend rate	2,036
Weighted average assumptions used to determine the net periodic benefit cost
Discount rate (as a percent)	4.74%	4.28%	5.22%
Expected Long-Term Rate of Return on Plan Assets (as a percent)	0.00%	0.00%	0.00%
Health Care Cost Trend Rate (as a percent)	6.70%	7.00%	7.20%
A one percent change in the health care cost trend rate assumption impact on cost
Effect of one percentage increase on the total of service and interest cost components of net periodic postretirement benefit cost	$ 144
Effect of one percentage increase on the postretirement benefit obligation	1,516
Effect of one percentage decrease on the total of service and interest cost components of net periodic postretirement benefit cost	(121)
Effect of one percentage decrease on the postretirement benefit obligation	(1,393)
Expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter
2,015	974
2,016	951
2,017	984
2,018	1,049
2,019	1,131
Years 2020-2024	7,366
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	$ 1,000

Employee Benefits (Retirement p

Employee Benefits (Retirement plan assets) (Details 4)	12 Months Ended
	Dec. 31, 2016D
Asset allocation guidelines
Effect of market fluctuations in cash flow on target allocation limits (as a percent)	5.00%
Period during which asset allocation is expected to conform to range limits (in days)	90
Minimum
Asset allocation guidelines
Fixed income securities, percentage of variable component in strategic targets (as a percent)	10.00%
Maximum
Asset allocation guidelines
Fixed income securities, percentage of variable component in strategic targets (as a percent)	20.00%
S&P 500 Index
Defined benefit pension plan disclosure
Performance benchmark (as a percent)	35.00%
MSCI EAFE Index
Defined benefit pension plan disclosure
Performance benchmark (as a percent)	25.00%
Barclays Capital Aggregate Bond Index
Defined benefit pension plan disclosure
Performance benchmark (as a percent)	40.00%
Equity Securities
Defined benefit pension plan disclosure
Target plan asset allocations	60.00%
Equity Securities, Domestic | Minimum
Defined benefit pension plan disclosure
Target plan asset allocations	50.00%
Equity Securities, Domestic | Maximum
Defined benefit pension plan disclosure
Target plan asset allocations	100.00%
Equity Securities, International | Minimum
Defined benefit pension plan disclosure
Target plan asset allocations	0.00%
Equity Securities, International | Maximum
Defined benefit pension plan disclosure
Target plan asset allocations	50.00%
Fixed Income Securities
Defined benefit pension plan disclosure
Target plan asset allocations	40.00%
Cash | Minimum
Defined benefit pension plan disclosure
Target plan asset allocations	0.00%
Cash | Maximum
Defined benefit pension plan disclosure
Target plan asset allocations	20.00%

Employee Benefits (Fair values

Employee Benefits (Fair values of retirement plan assets) (Details 5) - Pension Benefits - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined benefit pension plan disclosure
Fair value of plan assets	$ 83,383	$ 83,858	$ 90,154
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined benefit pension plan disclosure
Fair value of plan assets	83,383
Cash
Defined benefit pension plan disclosure
Fair value of plan assets	1,898	1,313
Cash | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined benefit pension plan disclosure
Fair value of plan assets	1,898
Equity Security - Mutual Funds: Mixed-Cap
Defined benefit pension plan disclosure
Fair value of plan assets	29,593	30,949
Equity Security - Mutual Funds: Mixed-Cap | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined benefit pension plan disclosure
Fair value of plan assets	29,593
Equity Security - Mutual Funds: International
Defined benefit pension plan disclosure
Fair value of plan assets	18,040	17,917
Equity Security - Mutual Funds: International | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined benefit pension plan disclosure
Fair value of plan assets	18,040
Equity Security - Mutual Funds: Emerging Market
Defined benefit pension plan disclosure
Fair value of plan assets	2,043	1,982
Equity Security - Mutual Funds: Emerging Market | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined benefit pension plan disclosure
Fair value of plan assets	2,043
Fixed Income - Mutual Funds
Defined benefit pension plan disclosure
Fair value of plan assets	31,809	$ 31,697
Fixed Income - Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined benefit pension plan disclosure
Fair value of plan assets	$ 31,809

Share-Based Compensation (Detai

Share-Based Compensation (Details 1) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation [Line Items]
Total shares authorized	1,300,000
Shares available for future grants of stock options or restricted stock	1,200,000
Compensation Expense	$ 6,787	$ 7,689	$ 7,870
Income Tax Benefit	$ 2,680	$ 3,036	3,104
Stock Options [Roll Forward]
Outstanding at the beginning of the period (in shares)	555,359
Exercised (in shares)	(76,470)
Outstanding at the end of the period (in shares)	478,889	555,359
Vested and Exercisable at the end of the period (in shares)	478,889
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 45.31
Exercised (in dollars per share)	46.37
Outstanding at the end of the period (in dollars per share)	45.14	$ 45.31
Vested and Exercisable at the end of period (in dollars per share)	$ 45.14
Weighted Average Remaining Contractual Term
Outstanding at the end of the period (in years)	4 years 11 months 30 days
Vested and Exercisable at the end of period (in years)	4 years 11 months 30 days
Aggregate Intrinsic Value
Outstanding at the end of the period	$ 20,856
Vested and Exercisable at the end of the period	20,856
Stock options activity
Intrinsic Value of Stock Options Exercised	1,990	$ 2,754	1,209
Cash Received from Stock Options Exercised	3,546	9,704	4,083
Tax Benefits Realized from Stock Options Exercised	$ 384	$ 330	$ 34
Stock Options
Share-based Compensation [Line Items]
Expiration period	10 years
Restricted Stock
Restricted Stock
Unrecognized compensation cost related to unvested restricted stock	$ 8,400
Weighted average period during which unrecognized compensation cost is expected to be recognized (in years)	1 year 10 months 4 days
Number of Shares
Unvested at the beginning of the period (in shares)	268,813	263,446	239,775
Granted (in shares)	121,495	116,331	155,447
Vested (in shares)	(105,891)	(108,949)	(130,238)
Forfeited (in shares)	(13,894)	(2,015)	(1,538)
Unvested at the end of the period (in shares)	270,523	268,813	263,446
Weighted Average Grant Date Fair Value
Unvested at the beginning of the period (in dollars per share)	$ 55.92	$ 53.04	$ 47.50
Granted (in dollars per share)	64.40	57.31	58.45
Vested (in dollars per share)	53.46	52.47	47.32
Forfeited (in dollars per share)	58.14	54.17	51.19
Unvested at the end of the period (in dollars per share)	$ 60.58	$ 55.92	$ 53.04
Grant Date Fair Value of Restricted Stock that Vested During the Year
Vested (in dollars)	$ 5,661	$ 5,759	$ 6,163
Service-Based Restricted Stock
Number of Shares
Unvested at the end of the period (in shares)	26,812
Restricted Stock Units (RSUs)
Share-based Compensation [Line Items]
Compensation Expense	$ 5,900	$ 3,300
Number of Shares
Unvested at the beginning of the period (in shares)	135,505	105,405
Granted (in shares)	58,541	61,751
Vested (in shares)	(31,660)	(31,651)
Forfeited (in shares)	(7,554)
Unvested at the end of the period (in shares)	154,832	135,505	105,405
Weighted Average Grant Date Fair Value
Unvested at the beginning of the period (in dollars per share)	$ 55.86	$ 55.17
Granted (in dollars per share)	63.92	56.68
Vested (in dollars per share)	55.17	55.17
Forfeited (in dollars per share)	56.08
Unvested at the end of the period (in dollars per share)	$ 59.04	$ 55.86	$ 55.17
Grant Date Fair Value of Restricted Stock that Vested During the Year
Vested (in dollars)	$ 1,897	$ 1,940
Minimum | Restricted Stock
Share-based Compensation [Line Items]
Vesting period (in years)	1 year
Minimum | Restricted Stock Units (RSUs)
Share-based Compensation [Line Items]
Vesting period (in years)	3 years
Maximum | Restricted Stock
Share-based Compensation [Line Items]
Vesting period (in years)	5 years
Maximum | Restricted Stock Units (RSUs)
Share-based Compensation [Line Items]
Vesting period (in years)	4 years

Income Taxes (Deferred tax liab

Income Taxes (Deferred tax liabilities & assets and reconciliation of statutory federal income taxes to the company's effective tax rate) (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ 69,061	$ 73,278	$ 76,789
State	1,885	3,737	3,018
Total Current	70,946	77,015	79,807
Deferred:
Federal	6,947	(6,801)	(5,603)
State	240	284	392
Total Deferred	7,187	(6,517)	(5,211)
Provision for Income Taxes	78,133	70,498	74,596
Net tax charge/(benefit) recorded directly to consolidated shareholders' equity	7,900	1,000	$ 2,700
Deferred Tax Liabilities:
Accrued Pension Cost	(13,292)	(13,707)
Federal Home Loan Bank Stock	(5,088)	(5,088)
Lease Transactions	(87,454)	(85,874)
Energy Tax Credits	(10,476)	(8,054)
Net Unrealized Gains on Investments Securities	0	(3,453)
Investment in Variable Interest Entities	(1,883)	0
Deferred Loan Fees	(9,088)	(7,744)
Originated Mortgage Servicing Rights	(9,588)	(9,104)
Other	(691)	(657)
Gross Deferred Tax Liabilities	(137,560)	(133,681)
Deferred Tax Assets:
Accelerated Depreciation	6,027	7,775
Allowance for Loan Losses	43,705	42,890
Minimum Pension Liability	18,852	18,831
Accrued Expenses	18,693	16,738
Postretirement Benefit Obligations	12,900	12,849
Capital Lease Expenses	3,235	3,231
Restricted Stock	7,955	6,262
Net Unrealized Losses on Investment Securities	3,271	0
Investment in Variable Interest Entities	0	1,951
Deductible State and Local Taxes	3,956	4,166
Other	7,596	7,225
Gross Deferred Tax Assets Before Valuation Allowance	126,190	121,918
Valuation Allowance	(3,655)	(3,932)
Gross Deferred Tax Assets After Valuation Allowance	122,535	117,986
Net Deferred Tax Liabilities	(15,025)	$ (15,695)
Base year reserves included in retained earnings	18,200
Unrecognized deferred federal income tax liability	$ 7,200
Reconciliation of the Statutory Federal Income Tax Rate to the Company's Effective Tax Rate
Statutory Federal Income Tax Rate (as a percent)	35.00%	35.00%	35.00%
Increase (Decrease) in Income Tax Rate Resulting From:
State Taxes, Net of Federal Income Tax (as a percent)	0.60%	1.23%	0.59%
Tax Reserve Adjustments (as a percent)	(0.18%)	0.38%	0.88%
Leveraged Leases (as a percent)	(0.13%)	0.06%	0.01%
Low-Income Housing Investments (as a percent)	(0.69%)	(0.78%)	(0.10%)
Investment Tax Credits (as a percent)	(0.85%)	(0.89%)	(0.68%)
Bank-Owned Life Insurance (as a percent)	(0.88%)	(1.06%)	(0.97%)
Tax-Exempt Income (as a percent)	(2.71%)	(3.03%)	(2.83%)
Other (as a percent)	(0.06%)	(0.42%)	(0.51%)
Effective Tax Rate (as a percent)	30.10%	30.49%	31.39%

Income Taxes (Unrecognized tax

Income Taxes (Unrecognized tax benefits) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of liability for Unrecognized Tax Benefits
Unrecognized Tax Benefits at the Beginning of Year	$ 11,602	$ 12,229	$ 11,846
Gross Increases, Related to Tax Positions Taken in a Prior Period	145	398	1,074
Gross Decreases, Related to Tax Positions Taken in a Prior Period	(230)	(98)	(314)
Gross Increases, Related to Current Period Tax Positions	395	573	498
Settlements with Taxing Authorities	(1,002)	0	0
Lapse of Statute of Limitations	(4,336)	(1,500)	(875)
Unrecognized Tax Benefits at the End of Year	6,574	11,602	12,229
Amount related to unrecognized tax benefits that if reversed would impact effective tax rate	5,800	10,800
Interest and penalties expense/(benefit) related to the liability for unrecognized tax benefits	(1,100)	100	$ 200
Accrued interest and penalties related to the liability for unrecognized tax benefits	1,000	$ 2,200
Release of federal tax reserves	$ 500

Derivative Financial Instrume98

Derivative Financial Instruments (Notional and fair value amounts) (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Interest Rate Lock Commitments
Derivative Financial Instruments Not Designated as Hedging Instruments
Notional Amount	$ 55,223	$ 4,375
Fair Value	1,067	270
Forward Commitments
Derivative Financial Instruments Not Designated as Hedging Instruments
Notional Amount	104,962	5,862
Fair Value	847	4
Interest Rate Swap Agreements Receive Fixed/Pay Variable Swaps
Derivative Financial Instruments Not Designated as Hedging Instruments
Notional Amount	357,441	203,667
Fair Value	1,381	13,021
Interest Rate Swap Agreements Pay Fixed/Receive Variable Swaps
Derivative Financial Instruments Not Designated as Hedging Instruments
Notional Amount	357,441	203,667
Fair Value	(1,395)	(13,051)
Foreign Exchange Contracts
Derivative Financial Instruments Not Designated as Hedging Instruments
Notional Amount	38,172	42,777
Fair Value	$ (757)	$ 104

Derivative Financial Instrume99

Derivative Financial Instruments (Assets and liabilities) (Details 2) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	$ 13,731	$ 13,967
Liability Derivatives	12,588	13,619
Interest Rate Lock Commitments
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	1,236	270
Liability Derivatives	169	0
Forward Commitments
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	873	5
Liability Derivatives	26	1
Interest Rate Swap Agreements
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	11,569	13,543
Liability Derivatives	11,583	13,573
Foreign Exchange Contracts
Derivative Financial Instruments Not Designated as Hedging Instruments
Asset Derivatives	53	149
Liability Derivatives	$ 810	$ 45

Derivative Financial Instrum100

Derivative Financial Instruments (Net gains or losses) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains (Losses) Recognized in the Statements of Income	$ 15,524	$ 6,674	$ 5,782
Interest Rate Lock Commitments | Mortgage Banking Income
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains (Losses) Recognized in the Statements of Income	7,834	2,779	3,072
Forward Commitments | Mortgage Banking Income
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains (Losses) Recognized in the Statements of Income	1,741	27	(527)
Interest Rate Swap Agreements | Other Noninterest Income
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains (Losses) Recognized in the Statements of Income	2,987	1,085	130
Foreign Exchange Contracts | Other Noninterest Income
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains (Losses) Recognized in the Statements of Income	$ 2,962	$ 2,783	$ 3,107

Derivative Financial Instrum101

Derivative Financial Instruments (Conversion rate swap agreement narrative) (Details 4) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Liability Derivatives	$ 12,588	$ 13,619
Visa Conversion Rate Swap Agreement
Derivative [Line Items]
Liability Derivatives	$ 0

Affordable Housing Projects 102

Affordable Housing Projects Tax Credit Partnerships (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Net affordable housing tax credit investments and related unfunded commitments	$ 66,600	$ 68,800
Affordable Housing Tax Credit Investments, Unfunded Commitments [Abstract]
2,017	15,155
2,018	566
2,019	91
2,020	27
2,021	9
Thereafter	382
Total Unfunded Commitments	16,230
Effective Yield Method [Abstract]
Tax Credits and Other Tax Benefits Recognized	13,996	13,448	$ 10,946
Amortization Expense in Provision for Income Taxes	$ 7,886	$ 7,735	$ 5,881

Balance Sheet Offsetting (Repos

Balance Sheet Offsetting (Repos - by maturity date and collateral type) (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	$ 523,378	$ 628,857
Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	304,681	310,313
Debt Securities Issued by States and Political Subdivisions
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	22,640	52,707
Residential - Government Agencies
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	98,019	155,238
Residential - U.S. Government Sponsored Enterprises
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	98,038	110,599
Maturity Up To 90 Days [Member]
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	22,788	49,065
Maturity Up To 90 Days [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities sold under repurchase agreements
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 repurchase agreements
Securities Sold under Agreements to Repurchase	22,050	47,915
Maturity Up To 90 Days [Member] | Residential - Government Agencies
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	738	1,150
Maturity Up To 90 Days [Member] | Residential - U.S. Government Sponsored Enterprises
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	0	0
Maturity 91 To 365 Days [Member]
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	590	79,692
Maturity 91 To 365 Days [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities sold under repurchase agreements
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 repurchase agreements
Securities Sold under Agreements to Repurchase	590	4,692
Maturity 91 To 365 Days [Member] | Residential - Government Agencies
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	0	51,169
Maturity 91 To 365 Days [Member] | Residential - U.S. Government Sponsored Enterprises
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	0	23,831
Maturity 1 To 3 Years [Member]
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	200,000	200,100
Maturity 1 To 3 Years [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Securities sold under repurchase agreements
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 repurchase agreements
Securities Sold under Agreements to Repurchase	0	100
Maturity 1 To 3 Years [Member] | Residential - Government Agencies
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	0	0
Maturity 1 To 3 Years [Member] | Residential - U.S. Government Sponsored Enterprises
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	0	0
Maturity After 3 Years [Member]
Securities sold under repurchase agreements
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 repurchase agreements
Securities Sold under Agreements to Repurchase	104,681	110,313
Maturity After 3 Years [Member] | Debt Securities Issued by States and Political Subdivisions
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	0	0
Maturity After 3 Years [Member] | Residential - Government Agencies
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	97,281	102,919
Maturity After 3 Years [Member] | Residential - U.S. Government Sponsored Enterprises
Securities sold under repurchase agreements
Securities Sold under Agreements to Repurchase	$ 98,038	$ 86,768

Balance Sheet Offsetting (Asset

Balance Sheet Offsetting (Assets and liabilities subject to MNA, or repurchase agreements) (Details 2) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	$ 523,378	$ 628,857
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	523,378	628,857
Repurchase Agreements, Fair Value of Collateral Pledged	523,378	628,857
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	5,500	13,100
Institutional Counterparties | Interest Rate Swap Agreements
Assets:
Derivative Assets, Gross Amounts Recognized in the Statements of Condition	5,094	261
Derivative Assets, Gross Amounts Offset in the Statements of Condition	0	0
Derivative Assets, Net Amount Presented in the Statements of Condition	5,094	261
Derivative Assets, Not Offset in the Statements of Condition - Netting Adjustments	5,094	261
Gross Amounts Not Offset in the Statements of Condition - FV of collateral pledged	0	0
Derivative Assets, Net Amount	0	0
Liabilities:
Derivative Liability, Gross Amounts Recognized in the Statements of Condition	6,489	13,312
Derivative Liability, Gross Amounts Offset in the Statements of Condition	0	0
Derivative Liability, Net Amounts Presented in the Statements of Condition	6,489	13,312
Derivative Liability, Not Offset in the Statements of Condition - Netting Adjustments	5,094	261
Derivative Liability, Not Offset in the Statements of Condition - FV of collateral pledged	500	0
Derivative Liabilities, Net Amount	895	13,051
Private Institutions
Offsetting Assets and Liabilities [Line items]
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	599,300	663,200
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	500,000	575,000
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	575,000
Repurchase Agreements, Fair Value of Collateral Pledged	500,000	575,000
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	28,900	66,900
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	23,378	53,857
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	23,378	53,857
Repurchase Agreements, Fair Value of Collateral Pledged	23,378	53,857
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	$ 0	$ 0

Commitments, Contingencies, 105

Commitments, Contingencies, and Guarantees (Credit commitments) (Details 1) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Credit Commitments [Line Items]
Credit Commitments	$ 2,861,833
Unfunded Commitments to Extend Credit
Credit Commitments [Line Items]
Credit Commitments	2,732,734
Standby Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	112,830
Assets secured for standby letters of credit	89,300
Commercial Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	$ 16,269
Standby and Commercial Letters of Credit | Minimum
Credit Commitments [Line Items]
Standby and commercial letters of credit, remaining term (in months)	1 month
Standby and Commercial Letters of Credit | Maximum
Credit Commitments [Line Items]
Standby and commercial letters of credit, remaining term (in months)	15 months

Commitments, Contingencies, 106

Commitments, Contingencies, and Guarantees (Rental expense and future minimum payments) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Rental expense
Minimum Rentals	$ 18,377	$ 18,826	$ 18,411
Sublease Rental Income	(6,551)	(6,212)	(6,647)
Total	11,826	$ 12,614	$ 11,764
Future minimum payments for capital leases
2,017	825
2,018	825
2,019	825
2,020	825
2,021	825
Thereafter	25,581
Total Future Minimum Lease Payments	29,706
Amounts Representing Interest	(18,921)
Present Value of Net Future Minimum Lease Payments	10,785
Future minimum payments for operating leases
2,017	13,632
2,018	12,108
2,019	10,045
2,020	9,588
2,021	8,823
Thereafter	103,083
Total Future Minimum Lease Payments	157,279
Minimum future rental income receivable under subleases from non-cancelable operating leases	$ 17,100

Commitments, Contingencies, 107

Commitments, Contingencies, and Guarantees (Representations and warranties) (Details 3) - Residential Mortgage $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)Loan
Representations and Warranties
Unpaid principal balance of mortgage loans sold | $	$ 2,500
Number of mortgage loans repurchased	2
Unpaid principal balance of repurchased mortgage loan | $	$ 0.4
Number of Mortgage Loans Repurchased, Pending	0
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 investors as percentage of total	99.00%

Fair Value of Assets and Lia108

Fair Value of Assets and Liabilities (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Liability Derivatives	$ 12,588	$ 13,619
Visa Conversion Rate Swap Agreement
Derivative [Line Items]
Liability Derivatives	$ 0

Fair Value of Assets and Lia109

Fair Value of Assets and Liabilities (Fair value on recurring basis) (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets:
Available-for-Sale: Fair Value	$ 2,186,041	$ 2,256,818	$ 2,289,190
Loans Held for Sale	62,499	4,808
Derivative Assets	13,731	13,967
Fair Value, Measurements, Recurring [Member]
Assets:
Available-for-Sale: Fair Value	2,186,041	2,256,818
Loans Held for Sale	62,499	4,808
Mortgage Servicing Rights	1,655	1,970
Other Assets	21,952	20,262
Derivative Assets	13,731	13,967
Total Assets Measured at Fair Value on a Recurring Basis	2,285,878	2,297,825
Liabilities:
Derivative Liabilities	12,588	13,619
Total Liabilities Measured at Fair Value on a Recurring Basis	12,588	13,619
Fair Value, Measurements, Recurring [Member] | Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	408,715	358,894
Fair Value, Measurements, Recurring [Member] | Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	671,799	731,918
Fair Value, Measurements, Recurring [Member] | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	269,179	308,870
Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	836,348	857,136
Fair Value, Measurements, Recurring [Member] | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	243,844	316,245
Fair Value, Measurements, Recurring [Member] | Residential - U.S. Government Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	506,987	441,864
Fair Value, Measurements, Recurring [Member] | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	85,517	99,027
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Available-for-Sale: Fair Value	539	545
Loans Held for Sale	0	0
Mortgage Servicing Rights	0	0
Other Assets	21,952	20,262
Derivative Assets	0	0
Total Assets Measured at Fair Value on a Recurring Basis	22,491	20,807
Liabilities:
Derivative Liabilities	0	0
Total Liabilities Measured at Fair Value on a Recurring Basis	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	539	545
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential - U.S. Government Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Assets:
Available-for-Sale: Fair Value	2,185,502	2,256,273
Loans Held for Sale	62,499	4,808
Mortgage Servicing Rights	0	0
Other Assets	0	0
Derivative Assets	926	154
Total Assets Measured at Fair Value on a Recurring Basis	2,248,927	2,261,235
Liabilities:
Derivative Liabilities	836	46
Total Liabilities Measured at Fair Value on a Recurring Basis	836	46
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Debt Securities Issued by the U.S. Treasury and Government Agencies
Assets:
Available-for-Sale: Fair Value	408,176	358,349
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Debt Securities Issued by States and Political Subdivisions
Assets:
Available-for-Sale: Fair Value	671,799	731,918
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	269,179	308,870
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	836,348	857,136
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	243,844	316,245
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Residential - U.S. Government Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	506,987	441,864
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	85,517	99,027
Fair Value, Measurements, Recurring [Member] | Significant Other Unobservable Inputs (Level 3)
Assets:
Available-for-Sale: Fair Value	0	0
Loans Held for Sale	0	0
Mortgage Servicing Rights	1,655	1,970
Other Assets	0	0
Derivative Assets	12,805	13,813
Total Assets Measured at Fair Value on a Recurring Basis	14,460	15,783
Liabilities:
Derivative Liabilities	11,752	13,573
Total Liabilities Measured at Fair Value on a Recurring Basis	11,752	13,573
Fair Value, Measurements, Recurring [Member] | 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 [Member] | 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 [Member] | Significant Other Unobservable Inputs (Level 3) | Debt Securities Issued by Corporations
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Unobservable Inputs (Level 3) | Mortgage-Backed Securities
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Unobservable Inputs (Level 3) | Residential - Government Agencies
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Unobservable Inputs (Level 3) | Residential - U.S. Government Sponsored Enterprises
Assets:
Available-for-Sale: Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Unobservable Inputs (Level 3) | Commercial - Government Agencies
Assets:
Available-for-Sale: Fair Value	$ 0	$ 0

Fair Value of Assets and Lia110

Fair Value of Assets and Liabilities (FV on recurring basis-Level 3 rollforward) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Mortgage Servicing Rights Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Mortgage Servicing Rights, Beginning Balance	$ 1,970	$ 2,604
Fair Value, Mortgage Servicing Rights, Realized and Unrealized Net Gains (Losses) Included in Net Income	(315)	(634)
Fair Value, Mortgage Servicing Rights, Ending Balance	1,655	1,970
Fair Value, Mortgage Service Rights, Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held	0	(251)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Net Derivative Assets and Liabilities, Beginning Balance	240	118
Fair Value, Net Derivative Assets and Liabilities, Realized and Unrealized Net Gains (Losses) Included in Net Income	7,850	2,783
Fair Value, Net Derivative Assets and Liabilities, Transfers to Loans Held for Sale	(7,037)	(2,661)
Fair Value, Net Derivative Assets and Liabilities, Ending Balance	1,053	240
Fair Value, Net Derivative Assets and Liabilities,Total Unrealized Net Gains (Losses) Included in Net Income Related to Assets Still Held	$ 1,053	$ 240

Fair Value of Assets and Lia111

Fair Value of Assets and Liabilities (FV on recurring or nonrecurring basis-level 3 inputs) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
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)	92.26%	94.70%
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ 1,067	$ 270
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)	0.13%	0.22%
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ (14)	$ (30)
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)	8.13%	9.10%
Weighted Average Discount Rate (as a percent)	9.33%	9.38%
Mortgage Servicing Rights, at Fair Value	$ 26,803	$ 26,774

Fair Value of Assets and Lia112

Fair Value of Assets and Liabilities (FV on nonrecurring basis) (Details 4) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)aircraft	Dec. 31, 2016USD ($)
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Mortgage Servicing Rights accounted for under the amortization method, valuation allowance	$ 21	$ 0
Foreclosed Real Estate	824	1,686
Foreclosed Real Estate, Valuation Allowance	0
Other Assets, Equipment Held for Sale, Valuation Allowance	$ 9,453
Number of Impaired Aircraft | aircraft	6
Other Asset Impairment Charges	$ 9,500
Fair Value, Measurements, Nonrecurring [Member] | Significant Other Unobservable Inputs (Level 3)
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Mortgage Servicing Rights accounted for under the amortization method	21,032	$ 22,008
Foreclosed Real Estate	824
Other Assets, Equipment Held for Sale	$ 4,657

Fair Value of Assets and Lia113

Fair Value of Assets and Liabilities (FV option) (Details 5) - Residential Mortgage Loans Held For Sale - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value Option
Aggregate Fair Value	$ 62,499	$ 4,808
Aggregate Unpaid Principal	61,782	4,575
Aggregate Fair Value less Aggregate Unpaid Principal	$ 717	$ 233

Fair Value of Assets and Lia114

Fair Value of Assets and Liabilities (Financial instruments not recorded at FV on recurring basis) (Details 6) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financial Instruments - Assets
Held-to-Maturity, Fair Value	$ 3,827,527	$ 4,006,412	$ 4,504,495
Carrying Amount
Financial Instruments - Assets
Held-to-Maturity, Fair Value	3,832,997	3,982,736
Loans	8,583,726	7,538,454
Financial Instruments - Liabilities
Time Deposits	1,217,707	1,177,651
Securities Sold Under Agreements to Repurchase	523,378	628,857
Other Debt	257,153	234,938
Fair value
Financial Instruments - Assets
Held-to-Maturity, Fair Value	3,827,527	4,006,412
Loans	8,743,191	7,967,385
Financial Instruments - Liabilities
Time Deposits	1,213,705	1,178,837
Securities Sold Under Agreements to Repurchase	523,374	686,853
Other Debt	256,718	235,668
Fair value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Instruments - Assets
Held-to-Maturity, Fair Value	530,940	489,967
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	3,296,587	3,516,445
Loans	0	0
Financial Instruments - Liabilities
Time Deposits	1,213,705	1,178,837
Securities Sold Under Agreements to Repurchase	523,374	686,853
Other Debt	256,718	235,668
Fair value | Significant Other Unobservable Inputs (Level 3)
Financial Instruments - Assets
Held-to-Maturity, Fair Value	0	0
Loans	8,743,191	7,967,385
Financial Instruments - Liabilities
Time Deposits	0	0
Securities Sold Under Agreements to Repurchase	0	0
Other Debt	$ 0	$ 0

Bank of Hawaii Corporation F115

Bank of Hawaii Corporation Financial Statements (Condensed Statements of Comprehensive Income) (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income
Investment Securities Gains (Losses), Net	$ 10,203	$ 10,160	$ 8,063
Noninterest Expense
Total Noninterest Expense	350,578	348,104	326,899
Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries	259,594	231,202	237,638
Income Tax Benefit (Expense)	(78,133)	(70,498)	(74,596)
Comprehensive Income	171,112	163,833	168,179
Parent
Income
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries and Interest Income	120,000	115,000	136,000
Investment Securities Gains (Losses), Net	(340)	9,870	7,810
Other Income	279	973	690
Total Income	119,939	125,843	144,500
Noninterest Expense
Intercompany Salaries and Services	705	651	839
Other Expenses	1,392	2,325	2,067
Total Noninterest Expense	2,097	2,976	2,906
Income Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries	117,842	122,867	141,594
Income Tax Benefit (Expense)	2,137	(1,670)	225
Equity in Undistributed Income of Subsidiaries	61,482	39,507	21,223
Net Income	181,461	160,704	163,042
Comprehensive Income	$ 171,112	$ 163,833	$ 168,179

Bank of Hawaii Corporation F116

Bank of Hawaii Corporation Financial Statements (Condensed Statements of Condition) (Details 2) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets
Investment Securities Held-to-Maturity	$ 3,832,997	$ 3,982,736	$ 4,466,679
Goodwill	31,517	31,517
Other Assets	194,708	199,392
Total Assets	16,492,367	15,455,016	14,787,208
Liabilities
Other Liabilities	134,199	135,534
Total Liabilities	15,330,830	14,338,756
Shareholders' Equity	1,161,537	1,116,260	$ 1,055,086	$ 1,011,976
Total Liabilities and Shareholders' Equity	16,492,367	15,455,016
Parent
Assets
Cash with Bank of Hawaii	51,915	63,755
Investment Securities Held-to-Maturity	4,973	4,960
Goodwill	14,129	14,129
Income Taxes Receivable and Deferred Tax Assets	2,071	2,445
Other Assets	7,744	7,842
Equity in Net Assets of Subsidiaries	1,095,077	1,036,977
Total Assets	1,175,909	1,130,108
Liabilities
Income Taxes Payable	6,273	5,072
Other Liabilities	8,099	8,776
Total Liabilities	14,372	13,848
Shareholders' Equity	1,161,537	1,116,260
Total Liabilities and Shareholders' Equity	$ 1,175,909	$ 1,130,108

Bank of Hawaii Corporation F117

Bank of Hawaii Corporation Financial Statements (Condensed Statements of Cash Flows) (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Share-Based Compensation	$ 6,786	$ 7,689	$ 7,870
Net Losses (Gains) on Investment Securities	(10,203)	(10,160)	(8,063)
Net Change in Other Assets and Other Liabilities	1,760	13,331	(2,915)
Net Cash Provided by Operating Activities	226,529	234,012	209,480
Investing Activities
Proceeds from Sales of Investment Securities	10,430	67,985	16,574
Purchase of Investment Securities Held-to-Maturity Securities	(677,652)	(518,664)	(525,070)
Net Cash Provided by (Used in) Investing Activities	(960,852)	(531,103)	(640,071)
Financing Activities
Proceeds from Issuance of Common Stock	9,079	15,364	9,995
Repurchase of Common Stock	(61,807)	(52,981)	(64,046)
Cash Dividends Paid	(81,157)	(78,367)	(79,660)
Net Cash Provided by (Used in) Financing Activities	858,209	517,236	502,421
Cash and Cash Equivalents at Beginning of Period	755,721	535,576	463,746
Cash and Cash Equivalents at End of Period	879,607	755,721	535,576
Parent
Operating Activities
Net Income	181,461	160,704	163,042
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Share-Based Compensation	558	639	656
Net Losses (Gains) on Investment Securities	340	(9,870)	(7,810)
Equity in Undistributed Income of Subsidiaries	(61,482)	(39,507)	(21,223)
Net Change in Other Assets and Other Liabilities	1,508	(481)	78
Net Cash Provided by Operating Activities	122,385	111,485	134,743
Investing Activities
Capital Contributions to the Bank	0	(10,179)	0
Proceeds from Sales of Investment Securities	(340)	9,870	7,810
Purchase of Investment Securities Held-to-Maturity Securities	0	0	(4,936)
Net Cash Provided by (Used in) Investing Activities	(340)	(309)	2,874
Financing Activities
Proceeds from Issuance of Common Stock	9,079	15,364	9,995
Repurchase of Common Stock	(61,807)	(52,981)	(64,046)
Cash Dividends Paid	(81,157)	(78,367)	(79,660)
Net Cash Provided by (Used in) Financing Activities	(133,885)	(115,984)	(133,711)
Net Change in Cash and Cash Equivalents	(11,840)	(4,808)	3,906
Cash and Cash Equivalents at Beginning of Period	63,755	68,563	64,657
Cash and Cash Equivalents at End of Period	$ 51,915	$ 63,755	$ 68,563