Park National (PRK) 10-Q 27 Apr 17 2017 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Apr. 26, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Entity Registrant Name	PARK NATIONAL CORP /OH/
Entity Central Index Key	805,676
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		15,297,087

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets:
Cash and due from banks	$ 106,529	$ 122,811
Money market instruments	285,243	23,635
Cash and cash equivalents	391,772	146,446
Investment securities:
Securities available-for-sale, at fair value (amortized cost of $1,222,447 and $1,262,761 at March 31, 2017 and December 31, 2016, respectively)	1,219,397	1,258,139
Securities held-to-maturity, at amortized cost (fair value of $283,155 and $256,672 at March 31, 2017 and December 31, 2016, respectively)	284,460	259,833
Other investment securities	61,811	61,811
Total investment securities	1,565,668	1,579,783
Loans	5,313,641	5,271,857
Allowance for loan losses	(49,922)	(50,624)
Net loans	5,263,719	5,221,233
Bank owned life insurance	186,263	185,234
Prepaid assets	94,536	88,874
Goodwill	72,334	72,334
Premises and equipment, net	57,220	57,971
Affordable housing tax credit investments	51,083	52,947
Other real estate owned	13,693	13,926
Interest Receivable	18,628	18,822
Mortgage loan servicing rights	9,321	9,266
Other	20,453	20,750
Total assets	7,744,690	7,467,586
Liabilities and Shareholders' Equity:
Noninterest bearing	1,548,363	1,523,417
Interest bearing	4,372,197	3,998,539
Total deposits	5,920,560	5,521,956
Short-term borrowings	219,863	394,795
Long-term debt	745,840	694,281
Subordinated debentures and notes	45,000	45,000
Unfunded commitments in affordable housing tax credit investments	14,282	14,282
Accrued interest payable	2,189	2,151
Other	52,834	52,881
Total liabilities	7,000,568	6,725,346
Shareholders' equity:
Preferred shares (200,000 shares authorized; 0 shares issued)	0	0
Common shares (No par value; 20,000,000 shares authorized; 16,150,795 shares issued at March 31, 2017 and 16,150,807 shares issued at December 31, 2016)	305,856	305,826
Retained earnings	541,241	535,631
Treasury shares (853,708 shares at March 31, 2017 and 810,089 at December 31, 2016)	(86,252)	(81,472)
Accumulated other comprehensive loss, net of taxes	(16,723)	(17,745)
Total shareholders' equity	744,122	742,240
Total liabilities and shareholders' equity	$ 7,744,690	$ 7,467,586

Consolidated Condensed Balance3

Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Securities available-for-sale, amortized cost	$ 1,222,447	$ 1,262,761
Securities held-to-maturity, fair value	$ 283,155	$ 256,672
Preferred Stock, Shares Authorized	200,000	200,000
Preferred Stock, Shares Issued	0	0
Common stock no par value	$ 0	$ 0
Common stock shares authorized	20,000,000	20,000,000
Common stock shares issued	16,150,795	16,150,807
Treasury stock shares	853,708	810,089

Consolidated Condensed Statemen

Consolidated Condensed Statements Of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest and dividend income:
Interest and fees on loans	$ 59,908	$ 60,052
Interest and dividends on:
Obligations of U.S. Government, its agencies and other securities	7,138	8,609
Interest Income, Securities, State and Municipal	1,460	373
Other interest income	249	274
Total interest and dividend income	68,755	69,308
Interest on deposits:
Demand and savings deposits	1,614	824
Time deposits	2,161	2,387
Interest on borrowings:
Short-term borrowings	235	164
Long-term debt	5,793	6,114
Total interest expense	9,803	9,489
Net interest income	58,952	59,819
Provision for loan losses	876	910
Net interest income after provision for loan losses	58,076	58,909
Other income:
Income from fiduciary activities	5,514	5,113
Service charges on deposit accounts	3,139	3,423
Other service income	2,804	2,574
Checkcard fee income	3,761	3,532
Bank owned life insurance income	1,103	1,197
ATM Fees	542	583
OREO valuation adjustments	(73)	(118)
Gain on sale of OREO, net	100	134
Other	617	951
Total other income	17,507	17,389
Other expense:
Salaries and employee benefits	22,717	21,554
Employee Benefits and Share-based Compensation	5,181	4,773
Occupancy expense	2,635	2,548
Furniture and equipment expense	3,618	3,443
Data processing fees	1,965	1,217
Professional fees and services	4,829	6,667
Marketing	1,056	1,111
Insurance	1,570	1,411
Communication	1,333	1,221
Excise and Sales Taxes	1,063	926
Other expense	1,495	5,028
Total other expense	47,462	49,899
Income before income taxes	28,121	26,399
Income taxes	7,854	7,713
Net income	20,267	18,686
Net income available to common shareholders	$ 20,267	$ 18,686
Net income available to common shareholders
Basic	$ 1.32	$ 1.22
Diluted	$ 1.31	$ 1.21
Weighted average common shares outstanding
Basic	15,312,059	15,330,813
Diluted	15,432,769	15,406,508
Cash dividends declared	$ 0.94	$ 0.94

Consolidated Condensed Stateme5

Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net Income	$ 20,267	$ 18,686
Other comprehensive income, net of tax:
Unrecognized net holding gain on securities available-for-sale, net of federal income taxes of $550 and $6,290 for the three months ended March 31, 2017 and 2016, respectively	1,022	11,680
Other comprehensive income (loss)	1,022	11,680
Comprehensive income	$ 21,289	$ 30,366

Consolidated Condensed Stateme6

Consolidated Condensed Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Unrealized net holding gain on securities available-for-sale, Tax expense	$ 550	$ 6,290

Consolidated Condensed Stateme7

Consolidated Condensed Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Retained Earnings [Member]	Treasury Stock At Cost [Member]	Accumulated Other Comprehensive Income (loss) [Member]
Balance at Dec. 31, 2015		$ 0	$ 303,966	$ 507,505	$ (82,473)	$ (15,643)
Net Income	$ 18,686			18,686
Other comprehensive income, net of tax:
Unrealized net holding (loss) gain on securities available-for-sale, net of income taxes	11,680					11,680
Dividends on common shares at $0.94 per share				(14,487)
Cash payment for fractional shares in dividend reinvestment plan			(1)
Allocated Share-based Compensation Expense	468		468
Balance at Mar. 31, 2016		0	304,433	511,704	(82,473)	(3,963)
Balance at Dec. 31, 2016	742,240	0	305,826	535,631	(81,472)	(17,745)
Net Income	20,267			20,267
Other comprehensive income, net of tax:
Unrealized net holding (loss) gain on securities available-for-sale, net of income taxes	1,022					1,022
Dividends on common shares at $0.94 per share				(14,460)
Cash payment for fractional shares in dividend reinvestment plan			(1)
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures			(795)	(197)	(645)
Allocated Share-based Compensation Expense	826		826
Treasury Stock, Value, Acquired, Cost Method	(5,425)
Balance at Mar. 31, 2017	$ 744,122	$ 0	$ 305,856	$ 541,241	$ (86,252)	$ (16,723)

Consolidated Condensed Stateme8

Consolidated Condensed Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock per share	$ 0.94	$ 0.94
Treasury Stock, Shares, Acquired	50,000	0
Stock Issued During Period, Shares, Restricted Stock Award, Gross	9,674	0

Consolidated Condensed Stateme9

Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	$ 876	$ 910
Amortization of investment securities, net	2,230	1,674
Provision for depreciation	2,121	2,049
Amortization of investment securities, net	258	16
Amortization of prepayment penalty of long-term debt	1,559	1,531
Loan originations to be sold in secondary market	(42,370)	(40,285)
Proceeds from sale of loans in secondary market	46,848	36,835
Share-based compensation expense	826	468
OREO valuation adjustments	73	118
Gain on sale of OREO, net	(100)	(134)
Bank owned life insurance income	(1,103)	(1,197)
Changes in assets and liabilities:
Increase in other assets	(7,519)	(7,018)
Decrease in other liabilities	(63)	(8)
Net cash provided by operating activities	23,116	12,884
Proceeds from maturity of:
Available-for-sale securities	40,382	341,879
Held-to-maturity securities	5,990	4,984
Purchases of:
Available-for-sale securities	0	(259,756)
Payments to Acquire Held-to-maturity Securities	(30,943)	(9,885)
Net loan originations, portfolio loans	(46,115)	10,476
Investments in qualified affordable housing projects	0	(2,847)
Proceeds from the sale of OREO	674	1,387
Life insurance death benefits	74	765
Purchases of premises and equipment, net	(1,379)	(1,581)
Net cash (used in) provided by investing activities	(31,317)	85,422
Financing activities:
Net increase in deposits	398,604	259,148
Net decrease in short-term borrowings	(174,932)	(174,599)
Proceeds from issuance of long-term debt	50,000	0
Payments Related to Tax Withholding for Share-based Compensation	(347)	0
Repurchase of common shares to be held as treasury shares	(5,425)	0
Cash dividends paid	(14,373)	(14,411)
Net cash provided by financing activities	253,527	70,138
Increase in cash and cash equivalents	245,326	168,444
Cash and cash equivalents at beginning of year	146,446	149,459
Cash and cash equivalents at end of period	391,772	317,903
Supplemental disclosures of cash flow information:
Cash paid for interest	9,765	9,454
Cash paid for income taxes	7,500	0
Non cash activities:
Loans transferred to OREO	448	439
Securities acquired through payable	0	17,156
Mortgage Loans on Real Estate [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of loans in secondary market	$ 787	$ 761

Basis Of Presentation

Basis Of Presentation	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	Basis of Presentation The accompanying unaudited consolidated condensed financial statements included in this report have been prepared for Park National Corporation (sometimes also referred to as the “Registrant”) and its subsidiaries. Unless the context otherwise requires, references to "Park", the "Corporation" or the "Company" and similar terms mean Park National Corporation and its subsidiaries. In the opinion of management, all adjustments (consisting of normal recurring accruals) necessary for a fair presentation of the results of operations for the interim periods included herein have been made. The results of operations for the three-month period ended March 31, 2017 are not necessarily indicative of the operating results to be anticipated for the fiscal year ending December 31, 2017. The accompanying unaudited consolidated condensed financial statements have been prepared in accordance with the instructions for Form 10-Q and, therefore, do not include all information and footnotes necessary for a fair presentation of the condensed balance sheets, condensed statements of income, condensed statements of comprehensive income, condensed statements of changes in shareholders’ equity and condensed statements of cash flows in conformity with United States ("U.S.") generally accepted accounting principles (“U.S. GAAP”). These financial statements should be read in conjunction with the consolidated financial statements incorporated by reference in the Annual Report on Form 10-K of Park for the fiscal year ended December 31, 2016 from Park’s 2016 Annual Report to Shareholders (“Park's 2016 Annual Report”). Certain prior period amounts have been reclassified to conform to the current period presentation. Park’s significant accounting policies are described in Note 1 of the Notes to Consolidated Financial Statements included in Park’s 2016 Annual Report. For interim reporting purposes, Park follows the same basic accounting policies, as updated by the information contained in this report, and considers each interim period an integral part of an annual period.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements ASU 2014-09 - Revenue from Contracts with Customers (Topic 606): In May 2014, the Financial Accounting Standards Board (the "FASB") issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU creates a new topic, Topic 606, to provide guidance on revenue recognition for entities that enter into contracts with customers to transfer goods or services or enter into contracts for the transfer of nonfinancial assets. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Additional disclosures are required to provide quantitative and qualitative information regarding the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The new guidance is effective for annual reporting periods, and interim reporting periods within those annual periods, beginning after December 15, 2017. While interest income is specifically out of scope of this guidance, management is currently evaluating the revenue streams within "Other income" to assess the applicability of this guidance. Specifically, management is evaluating the impact of this new guidance on deposit fees recorded within "Service charges on deposit accounts" and trust income within "Income from fiduciary activities." ASU 2016-01 - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. In January 2016, the FASB issued ASU 2016-01 - Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. Changes to the current U.S. GAAP model primarily affect the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, the ASU clarifies guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale securities. The new guidance is effective for annual reporting periods and interim reporting periods within those annual periods, beginning after December 15, 2017. The adoption of this guidance is not expected to have a material impact on Park's consolidated financial statements. ASU 2016-02 - Leases (Topic 842): In February 2016, the FASB issued ASU 2016-02 - Leases (Topic 842) . The ASU will require all organizations that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. Additional qualitative and quantitative disclosures will be required so that users can understand more about the nature of an entity’s leasing activities. The new guidance is effective for annual reporting periods and interim reporting periods within those annual periods, beginning after December 15, 2018. Early adoption is permitted. Management is currently analyzing data on leased assets. The adoption of this guidance is expected to increase both assets and liabilities, but is not expected to have a material impact on Park's consolidated statement of income. ASU 2016-09 - Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting: In March 2016, FASB issued ASU 2016-09 - Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting . The ASU provides simplification for several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The new guidance was effective for annual reporting periods and interim reporting periods within those annual periods, beginning after December 15, 2016. Early adoption was permitted. The adoption of this guidance on January 1, 2017 did not have a material impact on Park's consolidated financial statements. ASU 2016-13 - Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments: In June 2016, FASB issued ASU 2016-13 - Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . The new guidance replaces the incurred loss model with an expected loss model, which is referred to as the current expected credit loss ("CECL") model. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables, held-to-maturity debt securities, and reinsurance receivables. It also applies to off-balance sheet credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in leases recognized by a lessor. The CECL model requires an entity to estimate the credit losses over the life of an asset or off-balance sheet exposure. The new guidance is effective for annual reporting periods and interim reporting periods within those annual periods, beginning after December 15, 2019. Early adoption is permitted for annual reporting periods and interim reporting periods within those annual periods, beginning after December 15, 2018. Management is currently evaluating the impact of the adoption of this guidance on Park's consolidated financial statements. We anticipate that the adoption of the CECL model will result in a material increase to Park's allowance for loan losses. Management has established a committee to oversee the implementation of CECL. This committee is currently assessing the data and system requirements necessary for adoption. Management plans to run our current incurred loss model and a CECL model concurrently for 12 months prior to the adoption of this guidance on January 1, 2020. ASU 2016-15 - Statement of Cash Flows (Topic 203): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force): In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 203): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force) . This ASU provides guidance on eight specific cash flow issues where current U.S. GAAP is either unclear or does not include specific guidance. The new guidance is effective for annual reporting periods, and interim reporting periods within those annual periods, beginning after December 15, 2017. As such transactions arise, management will utilize the updated guidance within Park’s consolidated statements of cash flows. ASU 2017-04 - Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment: In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU eliminates Step 2 from the goodwill impairment test. Instead, under the new guidance, an entity is to perform its annual goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An impairment charge would be recognized for the amount by which the carrying amount exceeds the reporting unit's fair value. The new guidance is effective for annual reporting periods, and interim reporting periods within those annual periods, beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of this guidance is not expected to have an impact on Park's consolidated financial statements. ASU 2017-07 - Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost: In March 2017, the FASB issued ASU 2017-07 - Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. This ASU requires that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component. The new guidance is effective for annual reporting periods, and interim reporting periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted for interim or annual periods. The adoption of this guidance is not expected to have a material impact on Park's consolidated financial statements. ASU 2017-08 - Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities: In March 2017, the FASB issued ASU 2017-08 - Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. This ASU amends the amortization period for certain purchased callable debt securities held at a premium. It shortens the amortization period for the premium to the earliest call date. Under current U.S. GAAP, premiums on callable debt securities generally are amortized to the maturity date. The new guidance is effective for annual reporting periods, and interim reporting periods within those annual periods, beginning after December 15, 2018. Early adoption is permitted for interim or annual periods. The adoption of this guidance is not expected to have a material impact on Park's consolidated financial statements.

Loans

Loans	3 Months Ended
	Mar. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]
Loans	Loans The composition of the loan portfolio, by class of loan, as of March 31, 2017 and December 31, 2016 was as follows: March 31, 2017 December 31, 2016 (In thousands) Loan Balance Accrued Interest Receivable Recorded Investment Loan Balance Accrued Interest Receivable Recorded Investment Commercial, financial and agricultural * $ 995,377 $ 3,898 $ 999,275 $ 994,619 $ 3,558 $ 998,177 Commercial real estate * 1,187,395 3,870 1,191,265 1,155,703 4,161 1,159,864 Construction real estate: Commercial 112,015 338 112,353 135,343 398 135,741 Mortgage 48,193 110 48,303 48,699 106 48,805 Installment 5,026 14 5,040 4,903 17 4,920 Residential real estate: Commercial 396,663 924 397,587 406,687 940 407,627 Mortgage 1,156,543 1,246 1,157,789 1,169,495 1,459 1,170,954 HELOC 211,311 820 212,131 212,441 853 213,294 Installment 18,734 53 18,787 19,874 67 19,941 Consumer 1,178,736 3,118 1,181,854 1,120,850 3,385 1,124,235 Leases 3,648 58 3,706 3,243 29 3,272 Total loans $ 5,313,641 $ 14,449 $ 5,328,090 $ 5,271,857 $ 14,973 $ 5,286,830 * Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class. Loans are shown net of deferred origination fees, costs and unearned income of $11.7 million at March 31, 2017 and $11.1 million at December 31, 2016 , which represented a net deferred income position in both periods. Overdrawn deposit accounts of $2.0 million and $2.9 million had been reclassified to loans at March 31, 2017 and December 31, 2016 , respectively, and are included in the commercial, financial and agricultural loan class above. Credit Quality The following tables present the recorded investment in nonaccrual loans, accruing troubled debt restructurings ("TDRs"), and loans past due 90 days or more and still accruing by class of loan as of March 31, 2017 and December 31, 2016 : March 31, 2017 (In thousands) Nonaccrual Loans Accruing Troubled Debt Restructurings Loans Past Due 90 Days or More and Accruing Total Nonperforming Loans Commercial, financial and agricultural $ 18,767 $ 3,825 $ 10 $ 22,602 Commercial real estate 18,474 4,258 — 22,732 Construction real estate: Commercial 1,649 392 — 2,041 Mortgage — 103 — 103 Installment 58 92 — 150 Residential real estate: Commercial 22,715 88 — 22,803 Mortgage 17,632 9,983 804 28,419 HELOC 1,683 849 26 2,558 Installment 577 630 — 1,207 Consumer 2,739 1,003 1,046 4,788 Total loans $ 84,294 $ 21,223 $ 1,886 $ 107,403 December 31, 2016 (In thousands) Nonaccrual Loans Accruing Troubled Debt Restructurings Loans Past Due 90 Days or More and Accruing Total Nonperforming Loans Commercial, financial and agricultural $ 20,057 $ 600 $ 15 $ 20,672 Commercial real estate 19,169 5,305 — 24,474 Construction real estate: Commercial 1,833 393 — 2,226 Mortgage — 104 — 104 Installment 61 95 12 168 Residential real estate: Commercial 23,013 89 — 23,102 Mortgage 18,313 9,612 887 28,812 HELOC 1,783 673 25 2,481 Installment 644 609 60 1,313 Consumer 2,949 748 1,139 4,836 Total loans $ 87,822 $ 18,228 $ 2,138 $ 108,188 The following table provides additional information regarding those nonaccrual loans and accruing TDR loans that were individually evaluated for impairment and those collectively evaluated for impairment as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 (In thousands) Nonaccrual and Accruing TDRs Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Nonaccrual and Accruing TDRs Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Commercial, financial and agricultural $ 22,592 $ 22,542 $ 50 $ 20,657 $ 20,624 $ 33 Commercial real estate 22,732 22,732 — 24,474 24,474 — Construction real estate: Commercial 2,041 2,041 — 2,226 2,226 — Mortgage 103 — 103 104 — 104 Installment 150 — 150 156 — 156 Residential real estate: Commercial 22,803 22,803 — 23,102 23,102 — Mortgage 27,615 — 27,615 27,925 — 27,925 HELOC 2,532 — 2,532 2,456 — 2,456 Installment 1,207 — 1,207 1,253 — 1,253 Consumer 3,742 9 3,733 3,697 — 3,697 Total loans $ 105,517 $ 70,127 $ 35,390 $ 106,050 $ 70,426 $ 35,624 All of the loans individually evaluated for impairment were evaluated using the fair value of the underlying collateral or the present value of expected future cash flows as the measurement method. The following table presents loans individually evaluated for impairment by class of loan, together with the related allowance recorded, as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 (In thousands) Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated With no related allowance recorded: Commercial, financial and agricultural $ 37,260 $ 21,001 $ — $ 41,075 $ 19,965 $ — Commercial real estate 22,553 22,094 — 23,961 23,474 — Construction real estate: Commercial 1,499 1,471 — 3,662 2,226 — Residential real estate: Commercial 22,924 22,302 — 24,409 22,687 — With an allowance recorded: Commercial, financial and agricultural 6,419 1,541 596 810 659 152 Commercial real estate 695 638 179 1,014 1,000 309 Construction real estate: Commercial 1,956 570 32 — — — Residential real estate: Commercial 516 501 275 427 415 87 Consumer 9 9 9 — — — Total $ 93,831 $ 70,127 $ 1,091 $ 95,358 $ 70,426 $ 548 Management’s general practice is to proactively charge down loans individually evaluated for impairment to the fair value of the underlying collateral. At March 31, 2017 and December 31, 2016 , there were $17.4 million and $24.7 million , respectively, of partial charge-offs on loans individually evaluated for impairment with no related allowance recorded and $6.3 million and $0.2 million , respectively, of partial charge-offs on loans individually evaluated for impairment that also had a specific reserve allocated. The allowance for loan losses included specific reserves related to loans individually evaluated for impairment at March 31, 2017 and December 31, 2016 of $1.1 million and $0.5 million , respectively. These loans with specific reserves had a recorded investment of $3.3 million and $2.1 million as of March 31, 2017 and December 31, 2016 , respectively. Interest income on nonaccrual loans individually evaluated for impairment is recognized on a cash basis only when Park expects to receive the entire recorded investment of the loan. Interest income on accruing TDRs individually evaluated for impairment continues to be recorded on an accrual basis. The following table presents the average recorded investment and interest income recognized subsequent to impairment on loans individually evaluated for impairment as of and for the three months ended March 31, 2017 and March 31, 2016 : Three Months Ended Three Months Ended (In thousands) Recorded Investment as of March 31, 2017 Average Recorded Investment Interest Income Recognized Recorded Investment as of March 31, 2016 Average Recorded Investment Interest Income Recognized Commercial, financial and agricultural $ 22,542 $ 19,471 $ 220 $ 28,596 $ 29,858 $ 238 Commercial real estate 22,732 23,297 231 18,068 17,100 180 Construction real estate: Commercial 2,041 2,096 15 6,888 6,814 13 Residential real estate: Commercial 22,803 23,081 345 24,619 24,897 1,965 Consumer 9 5 — — — — Total $ 70,127 $ 67,950 $ 811 $ 78,171 $ 78,669 $ 2,396 The following tables present the aging of the recorded investment in past due loans as of March 31, 2017 and December 31, 2016 by class of loan. March 31, 2017 (In thousands) Accruing Loans Past Due 30-89 Days Past Due Nonaccrual Loans and Loans Past Due 90 Days or More and Accruing (1) Total Past Due Total Current (2) Total Recorded Investment Commercial, financial and agricultural $ 541 $ 2,272 $ 2,813 $ 996,462 $ 999,275 Commercial real estate 135 2,591 2,726 1,188,539 1,191,265 Construction real estate: Commercial — 24 24 112,329 112,353 Mortgage — — — 48,303 48,303 Installment 210 49 259 4,781 5,040 Residential real estate: Commercial 170 2,067 2,237 395,350 397,587 Mortgage 7,566 9,391 16,957 1,140,832 1,157,789 HELOC 632 1,017 1,649 210,482 212,131 Installment 197 178 375 18,412 18,787 Consumer 7,734 1,806 9,540 1,172,314 1,181,854 Leases — — — 3,706 3,706 Total loans $ 17,185 $ 19,395 $ 36,580 $ 5,291,510 $ 5,328,090 (1) Includes $1.9 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $66.8 million of nonaccrual loans which are current in regards to contractual principal and interest payments. December 31, 2016 (in thousands) Accruing Loans Past Due 30-89 Days Past Due (1) Total Past Due Total Current (2) Total Recorded Investment Commercial, financial and agricultural $ 371 $ 4,113 $ 4,484 $ 993,693 $ 998,177 Commercial real estate 355 2,499 2,854 1,157,010 1,159,864 Construction real estate: Commercial — 541 541 135,200 135,741 Mortgage 559 — 559 48,246 48,805 Installment 223 64 287 4,633 4,920 Residential real estate: Commercial 330 3,631 3,961 403,666 407,627 Mortgage 10,854 9,769 20,623 1,150,331 1,170,954 HELOC 970 1,020 1,990 211,304 213,294 Installment 350 319 669 19,272 19,941 Consumer 12,579 2,094 14,673 1,109,562 1,124,235 Leases — — — 3,272 3,272 Total loans $ 26,591 $ 24,050 $ 50,641 $ 5,236,189 $ 5,286,830 (1) Includes $2.1 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $65.9 million of nonaccrual loans which are current in regards to contractual principal and interest payments. Credit Quality Indicators Management utilizes past due information as a credit quality indicator across the loan portfolio. Past due information as of March 31, 2017 and December 31, 2016 is included in the tables above. The past due information is the primary credit quality indicator within the following classes of loans: (1) mortgage loans and installment loans in the construction real estate segment; (2) mortgage loans, HELOC and installment loans in the residential real estate segment; and (3) consumer loans. The primary credit indicator for commercial loans is based on an internal grading system that grades commercial loans on a scale from 1 to 8. Credit grades are continuously monitored by the responsible loan officer and adjustments are made when appropriate. A grade of 1 indicates little or no credit risk and a grade of 8 is considered a loss. Commercial loans that are pass-rated (graded an 1 through a 4) are considered to be of acceptable credit risk. Commercial loans graded a 5 (special mention) are considered to be watch list credits and a higher loan loss reserve percentage is allocated to these loans. Loans classified as special mention have potential weaknesses that require management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of Park’s credit position at some future date. Commercial loans graded 6 (substandard), also considered to be watch list credits, are considered to represent higher credit risk and, as a result, a higher loan loss reserve percentage is allocated to these loans. Loans classified as substandard are inadequately protected by the current sound worth and paying capacity of the obligor or the value of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that Park will sustain some loss if the deficiencies are not corrected. Commercial loans that are graded a 7 (doubtful) are shown as nonaccrual and Park generally charges these loans down to their fair value by taking a partial charge-off or recording a specific reserve. Loans classified as doubtful have all the weaknesses inherent in those classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Certain 6-rated loans and all 7-rated loans are placed on nonaccrual status and included within the impaired category. A loan is deemed impaired when management determines the borrower's ability to perform in accordance with the contractual loan agreement is in doubt. Any commercial loan graded an 8 (loss) is completely charged off. The tables below present the recorded investment by loan grade at March 31, 2017 and December 31, 2016 for all commercial loans: March 31, 2017 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 1,394 $ 179 $ 22,592 $ 975,110 $ 999,275 Commercial real estate * 5,873 268 22,732 1,162,392 1,191,265 Construction real estate: Commercial 90 116 2,041 110,106 112,353 Residential real estate: Commercial 1,061 216 22,803 373,507 397,587 Leases — — — 3,706 3,706 Total commercial loans $ 8,418 $ 779 $ 70,168 $ 2,624,821 $ 2,704,186 * Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class. December 31, 2016 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 5,826 $ — $ 20,657 $ 971,694 $ 998,177 Commercial real estate * 7,548 190 24,474 1,127,652 1,159,864 Construction real estate: Commercial 287 118 2,226 133,110 135,741 Residential real estate: Commercial 1,055 124 23,102 383,346 407,627 Leases — — — 3,272 3,272 Total Commercial Loans $ 14,716 $ 432 $ 70,459 $ 2,619,074 $ 2,704,681 * Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class. Troubled Debt Restructurings ("TDRs") Management classifies loans as TDRs when a borrower is experiencing financial difficulties and Park has granted a concession to the borrower as part of a modification or in the loan renewal process. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of the borrower's debt in the foreseeable future without the modification. This evaluation is performed in accordance with the Company’s internal underwriting policy. Management’s policy is to modify loans by extending the term or by granting a temporary or permanent contractual interest rate below the market rate, not by forgiving debt. A court's discharge of a borrower's debt in a Chapter 7 bankruptcy is considered a concession when the borrower does not reaffirm the discharged debt. Certain loans which were modified during the three -month periods ended March 31, 2017 and March 31, 2016 did not meet the definition of a TDR as the modification was a delay in a payment that was considered to be insignificant. Management considers a forbearance period of up to three months or a delay in payment of up to 30 days to be insignificant. TDRs may be classified as accruing if the borrower has been current for a period of at least six months with respect to loan payments and management expects that the borrower will be able to continue to make payments in accordance with the terms of the restructured note. Management reviews all accruing TDRs quarterly to ensure payments continue to be made in accordance with the modified terms. Quarterly, management reviews renewals/modifications of loans previously identified as TDRs to consider if it is appropriate to remove the TDR classification. If the borrower is no longer experiencing financial difficulty and the renewal/modification did not contain a concessionary interest rate or other concessionary terms, management considers the potential removal of the TDR classification. If deemed appropriate, the TDR classification is removed as the borrower has complied with the terms of the loan at the date of the renewal/modification and there was a reasonable expectation that the borrower would continue to comply with the terms of the loan subsequent to the date of the renewal/modification. The majority of these TDRs were originally considered restructurings in a prior year as a result of a renewal/modification with an interest rate that was not commensurate with the risk of the underlying loan at the time of the renewal/modification. There were no TDR classifications removed during the three-month period ended March 31, 2017 . The TDR classification was removed on $806,000 of loans during the three -month period ended March 31, 2016 , respectively. At March 31, 2017 and December 31, 2016 , there were $47.8 million and $46.9 million , respectively, of TDRs included in the nonaccrual loan totals. At March 31, 2017 and December 31, 2016 , $40.2 million and $38.0 million , respectively, of these nonaccrual TDRs were performing in accordance with the terms of the restructured note. As of March 31, 2017 and December 31, 2016 , loans with a recorded investment of $21.2 million and $18.2 million , respectively, were included in accruing TDR loan totals. Management will continue to review the restructured loans and may determine it appropriate to move certain nonaccrual TDRs to accrual status in the future. At March 31, 2017 and December 31, 2016 , Park had commitments to lend $1.1 million and $0.7 million , respectively, of additional funds to borrowers whose outstanding loan terms had been modified in a TDR. There were $0.5 million and $0.2 million of specific reserves related to TDRs at March 31, 2017 and December 31, 2016 , respectively. Modifications made in 2016 and 2017 were largely the result of renewals and extending the maturity date of the loan at terms consistent with the original note. These modifications were deemed to be TDRs primarily due to Park’s conclusion that the borrower would likely not have qualified for similar terms through another lender. Many of the modifications deemed to be TDRs were previously identified as impaired loans, and thus were also previously evaluated for impairment under Accounting Standards Codification (ASC) 310. Additional specific reserves of $280,000 and $25,000 were recorded during the three -month periods ended March 31, 2017 and March 31, 2016 , respectively, as a result of TDRs identified in the respective periods. The terms of certain other loans were modified during the three-month periods ended March 31, 2017 and March 31, 2016 that did not meet the definition of a TDR. Modified substandard commercial loans which did not meet the definition of a TDR had a total recorded investment as of March 31, 2017 of $113,000 . There were no modified substandard commercial loans which did not meet the definition of a TDR at March 31, 2016 . The renewal/modification of these loans: (1) resulted in a delay in a payment that was considered to be insignificant, or (2) resulted in Park obtaining additional collateral or guarantees that improved the likelihood of the ultimate collection of the loan such that the modification was deemed to be at market terms. Modified consumer loans which did not meet the definition of a TDR had a total recorded investment of $1.4 million and $2.0 million , as of March 31, 2017 and March 31, 2016 , respectively. Many of these loans were to borrowers who were not experiencing financial difficulties but who were looking to reduce their cost of funds. The following tables detail the number of contracts modified as TDRs during the three -month periods ended March 31, 2017 and March 31, 2016 , as well as the recorded investment of these contracts at March 31, 2017 and March 31, 2016 . The recorded investment pre- and post-modification is generally the same due to the fact that Park does not typically provide for forgiveness of principal. Three Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 6 $ 3,079 $ 1,019 $ 4,098 Commercial real estate 4 — 379 379 Construction real estate: Commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 3 — 2,140 2,140 Mortgage 9 — 608 608 HELOC 3 200 6 206 Installment 1 34 — 34 Consumer 57 272 348 620 Total loans 83 $ 3,585 $ 4,500 $ 8,085 Three Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 7 $ 131 $ 716 $ 847 Commercial real estate — — — — Construction real estate: Commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 2 — 617 617 Mortgage 5 99 217 316 HELOC 6 64 122 186 Installment — — — — Consumer 64 52 511 563 Total loans 84 $ 346 $ 2,183 $ 2,529 Of those loans which were modified and determined to be a TDR during the three -month period ended March 31, 2017 , $2.6 million were on nonaccrual status as of December 31, 2016 . Of those loans which were modified and determined to be a TDR during the three -month period ended March 31, 2016 , $922,000 were on nonaccrual status as of December 31, 2015 . The following tables present the recorded investment in financing receivables which were modified as TDRs within the previous 12 months and for which there was a payment default during the three-month periods ended March 31, 2017 and March 31, 2016 , respectively. For these tables, a loan is considered to be in default when it becomes 30 days contractually past due under the modified terms. The additional allowance for loan loss resulting from the defaults on TDR loans was immaterial. Three Months Ended Three Months Ended (In thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial, financial and agricultural 6 $ 198 1 $ 1 Commercial real estate 5 838 — — Construction real estate: Commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 3 49 1 90 Mortgage 8 631 8 516 HELOC — — — — Installment 1 3 1 25 Consumer 29 268 44 463 Leases — — — — Total loans 52 $ 1,987 55 $ 1,095 Of the $2.0 million in modified TDRs which defaulted during the three months ended March 31, 2017 , $60,000 were accruing loans and $1.9 million were nonaccrual loans. Of the $1.1 million in modified TDRs which defaulted during the three months ended March 31, 2016 , $37,000 were accruing loans and $1.1 million were nonaccrual loans.

Allowance For Loan Losses

Allowance For Loan Losses	3 Months Ended
	Mar. 31, 2017
Allowance for Loan and Lease Losses Write-offs, Net [Abstract]
Allowance For Loan Losses	Allowance for Loan Losses The allowance for loan losses ("ALLL") is that amount management believes is adequate to absorb probable incurred credit losses in the loan portfolio based on management’s evaluation of various factors including overall growth in the loan portfolio, an analysis of individual loans, prior and current loss experience, and current economic conditions. A provision for loan losses is charged to operations based on management’s periodic evaluation of these and other pertinent factors as discussed within Note 1 of the Notes to Consolidated Financial Statements included in Park’s 2016 Annual Report. Loss factors are reviewed quarterly and updated at least annually to reflect recent loan loss history and incorporate current risk and trends which may not be recognized in historical data. Several enhancements were made in the third quarter of 2016 as a result of management's quarterly review. • Management updated the historical loss calculation during the third quarter of 2016, incorporating annualized net charge-offs plus changes in specific reserves through September 30, 2016. Additionally, management removed net charge-offs plus changes in specific reserves for the year ended December 31, 2009. Management's belief has been that historical losses should encompass the complete economic cycle. However, given the extended length of the recovery, management determined that 2009 data was no longer reflective of the current portfolio. Management has taken the look back period into consideration in the quarterly evaluation of environmental loss factors. • As part of this mid-year historical loss update, management determined that it was no longer appropriate to more heavily weight those years with higher losses in the historical loss calculation and applied equal percentages to each of the years in this calculation. The trends that existed when management adopted this weighting no longer appear to exist, resulting in the adjustment back to equal weightings of all years evaluated. • As part of the normal quarterly process, management reviewed and updated the environmental loss factors applied to the commercial portfolio in order to incorporate changes in the macroeconomic environment. Additionally, management updated the calculation of the loss emergence period utilizing a more granular process. The impact of the changes described above resulted in a decrease of $3.8 million in the ALLL at September 30, 2016, compared to what the ALLL would have been had the calculation, and related assumptions, used at June 30, 2016 remained constant. The historical loss factors were updated again in the fourth quarter of 2016 to incorporate losses through December 31, 2016. As part of the normal quarterly process, during the first quarter of 2017, management reviewed and updated the environmental loss factors applied to the commercial portfolio in order to incorporate changes in the macroeconomic environment. The activity in the allowance for loan losses for the three months ended March 31, 2017 and March 31, 2016 is summarized below. Three Months Ended (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Beginning balance $ 13,434 $ 10,432 $ 5,247 $ 10,958 $ 10,553 $ — $ 50,624 Charge-offs 339 112 27 480 2,750 — 3,708 Recoveries 369 114 58 291 1,298 — 2,130 Net (recoveries)/charge-offs (30 ) (2 ) (31 ) 189 1,452 — 1,578 (Recovery)/provision (27 ) (153 ) (910 ) (24 ) 1,990 — 876 Ending balance $ 13,437 $ 10,281 $ 4,368 $ 10,745 $ 11,091 $ — $ 49,922 Three Months Ended (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Beginning balance $ 13,694 $ 9,197 $ 8,564 $ 13,514 $ 11,524 $ 1 $ 56,494 Charge-offs 274 1 — 747 2,379 — 3,401 Recoveries 427 218 939 471 890 — 2,945 Net (recoveries)/charge-offs (153 ) (217 ) (939 ) 276 1,489 — 456 Provision/(recovery) 393 38 (816 ) 150 1,145 — 910 Ending balance $ 14,240 $ 9,452 $ 8,687 $ 13,388 $ 11,180 $ 1 $ 56,948 Loans collectively evaluated for impairment in the following tables include all performing loans at March 31, 2017 and December 31, 2016 , as well as nonperforming loans internally classified as consumer loans. Nonperforming consumer loans are not typically individually evaluated for impairment, but receive a portion of the statistical allocation of the allowance for loan losses. Loans individually evaluated for impairment include all impaired loans internally classified as commercial loans at March 31, 2017 and December 31, 2016 , which are evaluated for impairment in accordance with U.S. GAAP (see Note 1 of the Notes to Consolidated Financial Statements included in Park’s 2016 Annual Report). The composition of the allowance for loan losses at March 31, 2017 and December 31, 2016 was as follows: March 31, 2017 (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Ending allowance balance attributed to loans: Individually evaluated for impairment $ 596 $ 179 $ 32 $ 275 $ 9 $ — $ 1,091 Collectively evaluated for impairment 12,841 10,102 4,336 10,470 11,082 — 48,831 Total ending allowance balance $ 13,437 $ 10,281 $ 4,368 $ 10,745 $ 11,091 $ — $ 49,922 Loan balance: Loans individually evaluated for impairment $ 22,541 $ 22,708 $ 2,039 $ 22,802 $ 9 $ — $ 70,099 Loans collectively evaluated for impairment 972,836 1,164,687 163,195 1,760,449 1,178,727 3,648 5,243,542 Total ending loan balance $ 995,377 $ 1,187,395 $ 165,234 $ 1,783,251 $ 1,178,736 $ 3,648 $ 5,313,641 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 2.64 % 0.79 % 1.57 % 1.21 % — % — % 1.56 % Loans collectively evaluated for impairment 1.32 % 0.87 % 2.66 % 0.59 % 0.94 % — % 0.93 % Total 1.35 % 0.87 % 2.64 % 0.60 % 0.94 % — % 0.94 % Recorded investment: Loans individually evaluated for impairment $ 22,542 $ 22,732 $ 2,041 $ 22,803 $ 9 $ — $ 70,127 Loans collectively evaluated for impairment 976,733 1,168,533 163,655 1,763,491 1,181,845 3,706 5,257,963 Total ending recorded investment $ 999,275 $ 1,191,265 $ 165,696 $ 1,786,294 $ 1,181,854 $ 3,706 $ 5,328,090 December 31, 2016 (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Ending allowance balance attributed to loans: Individually evaluated for impairment $ 152 $ 309 $ — $ 87 $ — $ — $ 548 Collectively evaluated for impairment 13,282 10,123 5,247 10,871 10,553 — 50,076 Total ending allowance balance $ 13,434 $ 10,432 $ 5,247 $ 10,958 $ 10,553 $ — $ 50,624 Loan balance: Loans individually evaluated for impairment $ 20,622 $ 24,465 $ 2,226 $ 23,102 $ — $ — $ 70,415 Loans collectively evaluated for impairment 973,997 1,131,238 186,719 1,785,395 1,120,850 3,243 5,201,442 Total ending loan balance $ 994,619 $ 1,155,703 $ 188,945 $ 1,808,497 $ 1,120,850 $ 3,243 $ 5,271,857 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 0.74 % 1.26 % — % 0.38 % — % — % 0.78 % Loans collectively evaluated for impairment 1.36 % 0.89 % 2.81 % 0.61 % 0.94 % — % 0.96 % Total 1.35 % 0.90 % 2.78 % 0.61 % 0.94 % — % 0.96 % Recorded investment: Loans individually evaluated for impairment $ 20,624 $ 24,474 $ 2,226 $ 23,102 $ — $ — $ 70,426 Loans collectively evaluated for impairment 977,553 1,135,390 187,240 1,788,714 1,124,235 3,272 5,216,404 Total ending recorded investment $ 998,177 $ 1,159,864 $ 189,466 $ 1,811,816 $ 1,124,235 $ 3,272 $ 5,286,830

Other Real Estate Owned Other R

Other Real Estate Owned Other Real Estate Owned	3 Months Ended
	Mar. 31, 2017
Other Real Estate Owned [Abstract]
Real Estate Owned [Text Block]	Other Real Estate Owned ("OREO") Park typically transfers a loan to OREO at the time that Park takes deed/title to the asset. The carrying amounts of foreclosed properties held at March 31, 2017 and December 31, 2016 are listed below, as well as the recorded investment of loans secured by residential real estate properties for which formal foreclosure proceedings were in process at those dates. (in thousands) March 31, 2017 December 31, 2016 OREO: Commercial real estate $ 7,642 $ 7,642 Construction real estate 4,633 4,624 Residential real estate 1,418 1,660 Total OREO $ 13,693 $ 13,926 Loans in process of foreclosure: Residential real estate $ 3,456 $ 3,250

Earnings Per Common Share

Earnings Per Common Share	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share The following table sets forth the computation of basic and diluted earnings per common share for the three months ended March 31, 2017 and 2016 . Three Months Ended (In thousands, except share and per common share data) 2017 2016 Numerator: Net income $ 20,267 $ 18,686 Denominator: Weighted-average common shares outstanding 15,312,059 15,330,813 Effect of dilutive performance-based restricted stock units 120,710 75,695 Weighted-average common shares outstanding adjusted for the effect of dilutive performance-based restricted stock units 15,432,769 15,406,508 Earnings per common share: Basic earnings per common share $ 1.32 $ 1.22 Diluted earnings per common share $ 1.31 $ 1.21 Park awarded 45,788 and 41,550 performance-based restricted stock units ("PBRSUs") to certain employees during the three months ended March 31, 2017 and 2016, respectively. As of March 31, 2017, 119,587 PBRSUs were outstanding. The PBRSUs vest based on service and performance conditions. The dilutive effect of the outstanding PBRSUs was the addition of 120,710 and 75,695 common shares for the three months ended March 31, 2017 and 2016, respectively. Park repurchased 50,000 common shares during the three months ended March 31, 2017 to fund the PBRSUs and common shares awarded to directors of Park and to directors of Park's subsidiary PNB (and its divisions). Park did no t repurchase any common shares during the three months ended March 31, 2016.

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Segment Information	Segment Information The Corporation is a financial holding company headquartered in Newark, Ohio. The operating segments for the Corporation are its chartered national bank subsidiary, The Park National Bank (headquartered in Newark, Ohio) (“PNB”), SE Property Holdings, LLC (“SEPH”), and Guardian Financial Services Company (“GFSC”). Management is required to disclose information about the different types of business activities in which a company engages and also information on the different economic environments in which a company operates, so that the users of the financial statements can better understand the company’s performance, better understand the potential for future cash flows, and make more informed judgments about the company as a whole. Park has three operating segments, as: (i) discrete financial information is available for each operating segment and (ii) the segments are aligned with internal reporting to Park’s Chief Executive Officer and President, who is the chief operating decision maker. Operating Results for the three months ended March 31, 2017 (In thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 57,480 $ 1,478 $ 201 $ (207 ) $ 58,952 Provision for (recovery of) loan losses 720 437 (281 ) — 876 Other income (loss) 17,711 — — (204 ) 17,507 Other expense 43,803 736 776 2,147 47,462 Income (loss) before income taxes $ 30,668 $ 305 $ (294 ) $ (2,558 ) $ 28,121 Federal income taxes (benefit) 9,182 107 (103 ) (1,332 ) 7,854 Net income (loss) $ 21,486 $ 198 $ (191 ) $ (1,226 ) $ 20,267 Assets (as of March 31, 2017) $ 7,667,288 $ 34,574 $ 24,727 $ 18,101 $ 7,744,690 Operating Results for the three months ended March 31, 2016 (In thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 57,155 $ 1,504 $ 1,161 $ (1 ) $ 59,819 Provision for (recovery of) loan losses 1,533 527 (1,150 ) — 910 Other income 17,223 — 34 132 17,389 Other expense 41,360 3,798 1,404 3,337 49,899 Income (loss) before income taxes $ 31,485 $ (2,821 ) $ 941 $ (3,206 ) $ 26,399 Federal income taxes (benefit) 9,741 (985 ) 329 (1,372 ) 7,713 Net income (loss) $ 21,744 $ (1,836 ) $ 612 $ (1,834 ) $ 18,686 Assets (as of March 31, 2016) $ 7,347,378 $ 34,637 $ 34,592 $ 11,578 $ 7,428,185 The operating results of the Parent Company in the “All Other” column are used to reconcile the segment totals to the consolidated condensed statements of income for the three-month periods ended March 31, 2017 and 2016 . The reconciling amounts for consolidated total assets for the periods ended March 31, 2017 and 2016 consisted of the elimination of intersegment borrowings and the assets of the Parent Company which were not eliminated.

Mortgage Loans Held For Sale Mo

Mortgage Loans Held For Sale Mortgage Loans Held for Sale	3 Months Ended
	Mar. 31, 2017
Mortgage Loans Held for Sale [Line Items]
Mortgage Loans Held For Sale Disclosure [Text Block]	Loans Held For Sale Mortgage loans held for sale are carried at their fair value. At March 31, 2017 and December 31, 2016 , respectively, Park had approximately $6.7 million and $10.4 million in mortgage loans held for sale. These amounts are included in loans on the consolidated condensed balance sheets and in the residential real estate loan segments in Note 3 and Note 4. The contractual balance was $6.6 million and $10.3 million at March 31, 2017 and December 31, 2016 , respectively. The gain expected upon sale was $86,000 and $131,000 at March 31, 2017 and December 31, 2016 , respectively. None of these loans were 90 days or more past due or on nonaccrual status as of March 31, 2017 or December 31, 2016 .

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost and fair value of investment securities are shown in the following tables. Management performs a quarterly evaluation of investment securities for any other-than-temporary impairment. For the three month periods ended March 31, 2017 and 2016, there were no investment securities deemed to be other-than-temporarily impaired. Investment securities at March 31, 2017 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Unrecognized Holding Gains Gross Unrecognized Holding Losses Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 270,000 $ — $ 1,579 $ 268,421 U.S. Government sponsored entities' asset-backed securities 951,328 6,044 9,793 947,579 Other equity securities 1,119 2,278 — 3,397 Total $ 1,222,447 $ 8,322 $ 11,372 $ 1,219,397 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Gross Estimated Fair Value U.S. Government sponsored entities' asset-backed securities $ 65,221 $ 1,019 $ 77 $ 66,163 Obligations of states and political subdivisions 219,239 1,698 $ 3,945 216,992 Total $ 284,460 $ 2,717 $ 4,022 $ 283,155 Investment securities with unrecognized losses at March 31, 2017 , were as follows: Unrecognized loss position for less than 12 months Unrecognized loss position for 12 months or longer Total (In thousands) Fair value Unrecognized losses Fair value Unrecognized Fair value Unrecognized Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 248,525 $ 1,475 $ 19,896 $ 104 $ 268,421 $ 1,579 U.S. Government sponsored entities' asset-backed securities 576,446 9,488 $ 26,282 305 $ 602,728 9,793 Total $ 824,971 $ 10,963 $ 46,178 $ 409 $ 871,149 $ 11,372 Securities Held-to-Maturity U.S. Government sponsored entities' asset-backed securities $ — $ — $ 7,509 $ 77 $ 7,509 $ 77 Obligations of states and political subdivisions 118,439 $ 3,945 — — $ 118,439 3,945 Total $ 118,439 $ 3,945 $ 7,509 $ 77 $ 125,948 $ 4,022 Investment securities at December 31, 2016 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Gross Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 270,000 $ — $ 2,467 $ 267,533 U.S. Government sponsored entities' asset-backed securities 991,642 5,372 9,842 987,172 Other equity securities 1,119 2,315 — 3,434 Total $ 1,262,761 $ 7,687 $ 12,309 $ 1,258,139 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Gross Estimated Fair Value Obligations of states and political subdivision $ 188,622 $ 977 $ 5,148 $ 184,451 U.S. Government sponsored entities' asset-backed securities 71,211 1,097 87 72,221 Total $ 259,833 $ 2,074 $ 5,235 $ 256,672 Investment securities with unrecognized losses at December 31, 2016 , were as follows: Unrecognized loss position for less than 12 months Unrecognized loss position for 12 months or longer Total (In thousands) Fair value Unrecognized losses Fair value Unrecognized Fair value Unrecognized Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 247,695 $ 2,305 $ 19,838 $ 162 $ 267,533 $ 2,467 U.S. Government sponsored entities' asset-backed securities 612,321 9,473 27,325 369 639,646 9,842 Total $ 860,016 $ 11,778 $ 47,163 $ 531 $ 907,179 $ 12,309 Securities Held-to-Maturity Obligations of states and political subdivision $ 134,909 $ 5,148 $ — $ — $ 134,909 $ 5,148 U.S. Government sponsored entities' asset-backed securities — — 7,564 87 7,564 87 Total $ 134,909 $ 5,148 $ 7,564 $ 87 $ 142,473 $ 5,235 Management does not believe any of the unrecognized losses at March 31, 2017 or December 31, 2016 represented other-than-temporary impairment. Should the impairment of any of these securities become other-than-temporary, the cost basis of the investment will be reduced and the resulting loss recognized within net income in the period the other-than-temporary impairment is identified. Park’s U.S. Government sponsored entities' asset-backed securities consist of 15 -year residential mortgage-backed securities and collateralized mortgage obligations. The amortized cost and estimated fair value of investments in debt securities at March 31, 2017 , are shown in the following table by contractual maturity, except for asset-backed securities, which are shown as a single total, due to the unpredictability of the timing of principal repayments. Securities Available-for-Sale (In thousands) Amortized cost Fair value Tax equivalent yield Obligations of U.S. Treasury and other U.S. Government sponsored entities' obligations: Due less than one year $ 50,000 $ 49,927 0.96 % Due one through five years 220,000 218,494 1.24 % Total $ 270,000 $ 268,421 1.18 % U.S. Government sponsored entities' asset-backed securities: $ 951,328 $ 947,579 2.10 % Securities Held-to-Maturity (In thousands) Amortized cost Fair value Tax equivalent yield (1) Obligations of state and political subdivisions: Due over ten years $ 219,239 $ 216,992 4.52 % Total (1) $ 219,239 $ 216,992 4.52 % U.S. Government sponsored entities' asset-backed securities $ 65,221 $ 66,163 3.28 % (1) The tax equivalent yield for obligations of state and political subdivisions includes the effects of a taxable equivalent adjustment using a 35% rate. The aggregate taxable equivalent adjustment was $786,000 for the three months ended March 31, 2017. All of Park’s securities shown in the table above as obligations of U.S. Treasury and other U.S. Government sponsored entities' notes are callable notes. These callable notes have final maturities of 0.6 years to 3 years. Of the $268.4 million reported at March 31, 2017 , none were expected to be called. The remaining average life of the entire investment portfolio is estimated to be 4.4 years. There were no sales of investment securities during the three-month periods ended March 31, 2017 or 2016. Investment securities having an amortized cost of $1,062 million and $937 million at March 31, 2017 and December 31, 2016, respectively, were pledged to collateralize government and trust department deposits in accordance with federal and state requirements, to secure repurchase agreements sold and as collateral for FHLB advance borrowings.

Other Investment Securities

Other Investment Securities	3 Months Ended
	Mar. 31, 2017
Other Investment Securities [Abstract]
Other Investment Securities	Other Investment Securities Other investment securities consist of stock investments in the Federal Home Loan Bank ("FHLB"), the Federal Reserve Bank ("FRB") and other equities carried at cost. The FHLB and FRB restricted stock investments are carried at their redemption value. March 31, December 31, 2016 (In thousands) FHLB stock $ 50,086 $ 50,086 FRB stock 8,225 8,225 Other equity investments carried at cost 3,500 3,500 Total other investment securities $ 61,811 $ 61,811

Share Based Compensation Share

Share Based Compensation Share Based Compensation	3 Months Ended
	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	Share-Based Compensation The Park National Corporation 2013 Long-Term Incentive Plan (the "2013 Incentive Plan") was adopted by the Board of Directors of Park on January 28, 2013 and was approved by Park's shareholders at the Annual Meeting of Shareholders on April 22, 2013. The 2013 Incentive Plan makes equity-based awards and cash-based awards available for grant to participants in the form of incentive stock options, nonqualified stock options, stock appreciation rights, restricted common shares, restricted stock unit awards that may be settled in common shares, cash or a combination of the two, unrestricted common shares and cash-based awards. Under the 2013 Incentive Plan, 600,000 common shares are authorized to be delivered in connection with grants under the 2013 Incentive Plan. The common shares to be delivered under the 2013 Incentive Plan may consist of either common shares currently held or common shares subsequently acquired by Park as treasury shares, including common shares purchased in the open market or in private transactions. No awards may be made under the 2013 Incentive Plan after April 22, 2023. At March 31, 2017, 429,889 common shares were available for future grants under the 2013 Incentive Plan. During the three months ended March 31, 2017 and 2016, the Compensation Committee of the Board of Directors of Park granted awards of performance-based restricted stock units ("PBRSUs") covering an aggregate of 45,788 and 41,550 common shares, respectively, to certain employees of Park and its subsidiaries. The number of PBRSUs earned or settled will depend on the level of achievement with respect to certain performance criteria and are also subject to subsequent service-based vesting. A summary of changes in the common shares subject to nonvested PBRSUs for the three months ended March 31, 2017 follows: Common shares subject to PBRSUs Nonvested at January 1, 2017 85,425 Granted 45,788 Vested 9,674 Forfeited 150 Adjustment for performance conditions of PBRSUs (1) (1,802 ) Nonvested at March 31, 2017 119,587 (1) The number of PBRSUs earned depends on the level of achievement with respect to certain performance criteria. Adjustment herein represents the difference between the maximum number of common shares which could be earned and the actual number earned for those PBRSUs as to which the performance period was completed. On March 31, 2017, 9,674 PBRSUs granted in 2014 vested. A total of 3,293 common shares were withheld to pay employee income taxes. This resulted in a net amount of 6,381 common shares being issued to employees of Park. Share-based compensation expense of $826,000 and $468,000 was recognized for the three-month periods ended March 31, 2017 and 2016, respectively. The following table details expected additional share-based compensation expense related to PBRSUs currently outstanding: (In thousands) Nine months ending December 31, 2017 $ 2,247 2018 2,641 2019 1,964 2020 890 2021 149 Total $ 7,891

Pension Plan

Pension Plan	3 Months Ended
	Mar. 31, 2017
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Pension Plan	Pension Plan Park has a noncontributory defined benefit pension plan covering substantially all of its employees. The plan provides benefits based on an employee’s years of service and compensation. There were no pension plan contributions for the three-month periods ended March 31, 2017 and 2016 . The following table shows the components of net periodic benefit income: Three Months Ended (In thousands) 2017 2016 Service cost $ 1,317 $ 1,264 Interest cost 1,271 1,217 Expected return on plan assets (2,863 ) (2,737 ) Amortization of prior service cost — — Recognized net actuarial loss 144 193 Net periodic benefit income $ (131 ) $ (63 )

Loan Servicing

Loan Servicing	3 Months Ended
	Mar. 31, 2017
Transfers and Servicing of Financial Assets [Abstract]
Loan Servicing	Loan Servicing Park serviced sold mortgage loans of $1.33 billion at each of March 31, 2017 and December 31, 2016 and $1.27 billion at March 31, 2016 . At March 31, 2017 , $3.6 million of the sold mortgage loans were sold with recourse, compared to $4.1 million at December 31, 2016 and $4.9 million at March 31, 2016 . Management closely monitors the delinquency rates on the mortgage loans sold with recourse. At March 31, 2017 and December 31, 2016, management had established reserves of $287,000 and $266,000 , respectively, to account for expected losses on loan repurchases. When Park sells mortgage loans with servicing rights retained, servicing rights are initially recorded at fair value. Park selected the “amortization method” as permissible within U.S. GAAP, whereby the servicing rights capitalized are amortized in proportion to and over the period of estimated future servicing income of the underlying loan. At the end of each reporting period, the carrying value of mortgage servicing rights (“MSRs”) is assessed for impairment with a comparison to fair value. MSRs are carried at the lower of their amortized cost or fair value. Activity for MSRs and the related valuation allowance follows: Three Months Ended (In thousands) 2017 2016 Mortgage servicing rights: Carrying amount, net, beginning of period $ 9,266 $ 9,008 Additions 354 316 Amortization (358 ) (375 ) Changes in valuation allowance 59 — Carrying amount, net, end of period $ 9,321 $ 8,949 Valuation allowance: Beginning of period $ 735 $ 542 Changes in valuation allowance (59 ) — End of period $ 676 $ 542 Servicing fees included in other service income were $0.9 million for the three months ended March 31, 2017 and $0.8 million for the same period of 2016.

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value	Fair Value The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The three levels of inputs that Park uses to measure fair value are as follows: • Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that Park has the ability to access as of the measurement date. • Level 2: Level 1 inputs for assets or liabilities that are not actively traded. Also consists of an observable market price for a similar asset or liability. This includes the use of “matrix pricing” to value debt securities absent the exclusive use of quoted prices. • Level 3: Consists of unobservable inputs that are used to measure fair value when observable market inputs are not available. This could include the use of internally developed models, financial forecasting and similar inputs. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability between market participants at the balance sheet date. When possible, the Company looks to active and observable markets to price identical assets or liabilities. When identical assets and liabilities are not traded in active markets, the Company looks to observable market data for similar assets and liabilities. However, certain assets and liabilities are not traded in observable markets and Park must use other valuation methods to develop a fair value. The fair value of impaired loans is typically based on the fair value of the underlying collateral, which is estimated through third-party appraisals in accordance with Park's valuation requirements under its commercial and real estate loan policies. Assets and Liabilities Measured at Fair Value on a Recurring Basis : The following table presents assets and liabilities measured at fair value on a recurring basis: Fair Value Measurements at March 31, 2017 using: (In thousands) Level 1 Level 2 Level 3 Balance at March 31, 2017 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 268,421 $ — $ 268,421 U.S. Government sponsored entities’ asset-backed securities — 947,579 — 947,579 Equity securities 2,621 — 776 3,397 Mortgage loans held for sale — 6,722 — 6,722 Mortgage IRLCs — 234 — 234 Liabilities Fair value swap $ — $ — $ 226 $ 226 Fair Value Measurements at December 31, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2016 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 267,533 $ — $ 267,533 U.S. Government sponsored entities’ asset-backed securities — 987,172 — 987,172 Equity securities 2,644 — 790 3,434 Mortgage loans held for sale — 10,413 — 10,413 Mortgage IRLCs — 124 — 124 Liabilities Fair value swap $ — $ — $ 226 $ 226 There were no transfers between Level 1 and Level 2 during the three months ended March 31, 2017 or 2016 . Management’s policy is to transfer assets or liabilities from one level to another when the methodology to obtain the fair value changes such that there are more or fewer unobservable inputs as of the end of the reporting period. The following methods and assumptions were used by the Company in determining the fair value of the financial assets and liabilities discussed above: Investment securities: Fair values for investment securities are based on quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments. For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows. Fair value swap: The fair value of the swap agreement entered into with the purchaser of the Visa Class B shares represents an internally developed estimate of the exposure based upon probability-weighted potential Visa litigation losses. Mortgage Interest Rate Lock Commitments (IRLCs): Mortgage IRLCs are based on current secondary market pricing and are classified as Level 2. Mortgage loans held for sale: Mortgage loans held for sale are carried at their fair value. Mortgage loans held for sale are estimated using security prices for similar product types and, therefore, are classified in Level 2. The tables below are a reconciliation of the beginning and ending balances of the Level 3 inputs for the three months ended March 31, 2017 and 2016 , for financial instruments measured on a recurring basis and classified as Level 3: Level 3 Fair Value Measurements Three months ended March 31, 2017 and 2016 (In thousands) Equity Securities Fair value swap Balance at January 1, 2017 $ 790 $ (226 ) Total gains/(losses) Included in other comprehensive income (14 ) — Balance at March 31, 2017 $ 776 $ (226 ) Balance at January 1, 2016 $ 769 $ (226 ) Total gains/(losses) Included in other comprehensive income 44 — Balance at March 31, 2016 $ 813 $ (226 ) Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis: The following methods and assumptions were used by the Company in determining the fair value of assets and liabilities measured at fair value on a nonrecurring basis described below: Impaired Loans: At the time a loan is considered impaired, it is valued at the lower of cost or fair value. Collateral dependent impaired loans carried at fair value have been partially charged-off or receive specific allocations of the allowance for loan losses. For collateral dependent loans, fair value is generally based on real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including the comparable sales approach and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments result in a Level 3 classification of the inputs for determining fair value. Collateral is then adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, resulting in a Level 3 fair value classification. Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly. Additionally, updated independent valuations are obtained annually for all impaired loans in accordance with Company policy. Other Real Estate Owned ("OREO"): Assets acquired through or in lieu of loan foreclosure are initially recorded at fair value less costs to sell when acquired. The carrying value of OREO is not re-measured to fair value on a recurring basis, but is subject to fair value adjustments when the carrying value exceeds the fair value, less estimated selling costs. Fair value is based on recent real estate appraisals and is updated at least annually. These appraisals may utilize a single valuation approach or a combination of approaches including the comparable sales approach and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments result in a Level 3 classification of the inputs for determining fair value. Appraisals for both collateral dependent impaired loans and OREO are performed by licensed appraisers. Appraisals are generally obtained to support the fair value of collateral. In general, there are three types of appraisals, real estate appraisals, income approach appraisals, and lot development loan appraisals, received by the Company. These are discussed below: • Real estate appraisals typically incorporate measures such as recent sales prices for comparable properties. Appraisers may make adjustments to the sales prices of the comparable properties as deemed appropriate based on the age, condition or general characteristics of the subject property. Management generally applies a 15% discount to real estate appraised values which management expects will cover all disposition costs (including selling costs). This 15% discount is based on historical discounts to appraised values on sold OREO properties. • Income approach appraisals typically incorporate the annual net operating income of the business divided by an appropriate capitalization rate, as determined by the appraiser. Management generally applies a 15% discount to income approach appraised values which management expects will cover all disposition costs (including selling costs). • Lot development loan appraisals are typically performed using a discounted cash flow analysis. Appraisers determine an anticipated absorption period and a discount rate that takes into account an investor’s required rate of return based on recent comparable sales. Management generally applies a 6% discount to lot development appraised values, which is an additional discount above the net present value calculation included in the appraisal, to account for selling costs. MSRs: MSRs are carried at the lower of cost or fair value. MSRs do not trade in active, open markets with readily observable prices. For example, sales of MSRs do occur, but precise terms and conditions typically are not readily available. As such, management, with the assistance of a third-party specialist, determines fair value based on the discounted value of the future cash flows estimated to be received. Significant inputs include the discount rate and assumed prepayment speeds. The calculated fair value is then compared to market values where possible to ascertain the reasonableness of the valuation in relation to current market expectations for similar products. Accordingly, MSRs are classified as Level 2. The following tables present assets and liabilities measured at fair value on a nonrecurring basis. Collateral dependent impaired loans are carried at fair value if they have been charged down to fair value or if a specific valuation allowance has been established. A new cost basis is established at the time a property is initially recorded in OREO. OREO properties are carried at fair value if a devaluation has been taken to the property's value subsequent to the initial measurement. Fair Value Measurements at March 31, 2017 using: (In thousands) Level 1 Level 2 Level 3 Balance at March 31, 2017 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 2,647 $ 2,647 Construction real estate — — 561 561 Residential real estate — — 1,111 1,111 Total impaired loans recorded at fair value $ — $ — $ 4,319 $ 4,319 Mortgage servicing rights $ — $ 6,892 $ — $ 6,892 OREO: Commercial real estate — — 2,644 2,644 Construction real estate — — 3,331 3,331 Residential real estate — — 853 853 Total OREO recorded at fair value $ — $ — $ 6,828 $ 6,828 Fair Value Measurements at December 31, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2016 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 3,057 $ 3,057 Construction real estate — — 541 541 Residential real estate — — 2,385 2,385 Total impaired loans recorded at fair value $ — $ — $ 5,983 $ 5,983 Mortgage servicing rights $ — $ 6,769 $ — $ 6,769 OREO: Commercial real estate — — 2,644 2,644 Construction real estate — — 3,322 3,322 Residential real estate — — 931 931 Total OREO recorded at fair value $ — $ — $ 6,897 $ 6,897 The table below provides additional detail on those impaired loans which are recorded at fair value as well as the remaining impaired loan portfolio not included above. The remaining impaired loans consist of loans which are not collateral dependent as well as loans carried at cost as the fair value of the underlying collateral or the present value of expected future cash flows on each of the loans exceeded the book value for each respective credit. March 31, 2017 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 4,805 $ 2,593 $ 486 $ 4,319 Remaining impaired loans 65,322 21,138 605 64,717 Total impaired loans $ 70,127 $ 23,731 $ 1,091 $ 69,036 December 31, 2016 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 6,379 $ 3,681 $ 396 $ 5,983 Remaining impaired loans 64,047 21,262 152 63,895 Total impaired loans $ 70,426 $ 24,943 $ 548 $ 69,878 The expense from credit adjustments related to impaired loans carried at fair value during the three months ended March 31, 2017 and 2016 was $0.3 million and $0.6 million , respectively. MSRs totaled $9.3 million at March 31, 2017 . Of this $9.3 million MSR carrying balance, $6.9 million was recorded at fair value and included a valuation allowance of $0.7 million . The remaining $2.4 million was recorded at cost, as the fair value of the MSRs exceeded cost at March 31, 2017 . At December 31, 2016 , MSRs totaled $9.3 million . Of this $9.3 million MSR carrying balance, $6.8 million was recorded at fair value and included a valuation allowance of $0.7 million . The remaining $2.5 million was recorded at cost, as the fair value exceeded cost at December 31, 2016 . The income related to MSRs carried at fair value during the three months ended March 31, 2017 was $59,000 . There was no income or expense related to MSRs carried at fair value during the three months ended March 31, 2016. Total OREO held by Park at March 31, 2017 and December 31, 2016 was $13.7 million and $13.9 million , respectively. Approximately 50% of OREO held by Park at each of March 31, 2017 and December 31, 2016 was carried at fair value due to fair value adjustments made subsequent to the initial OREO measurement. At March 31, 2017 and December 31, 2016 , OREO held at fair value, less estimated selling costs, amounted to $6.8 million and $6.9 million , respectively. The net expense related to OREO fair value adjustments was $73,000 and $118,000 for the three -month periods ended March 31, 2017 and 2016 , respectively. The following tables present qualitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at March 31, 2017 and December 31, 2016 : March 31, 2017 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 2,647 Sales comparison approach Adj to comparables 0.0% - 90.0% (21.3%) Income approach Capitalization rate 9.0% - 10.6% (10.0%) Cost approach Accumulated depreciation 17.0% - 90.1% (60.5%) Construction real estate $ 561 Sales comparison approach Adj to comparables 0.0% - 4.8% (0.7%) Bulk sale approach Discount rate 10.0% (10.0%) Residential real estate $ 1,111 Sales comparison approach Adj to comparables 0.3% - 110.0% (16.5%) Income approach Capitalization rate 10.5% (10.5%) Other real estate owned: Commercial real estate $ 2,644 Sales comparison approach Adj to comparables 0.0% - 68.4% (26.5%) Income approach Capitalization rate 13.0% - 14.0% (13.1%) Construction real estate $ 3,331 Sales comparison approach Adj to comparables 0.0% - 90.0% (24.7%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 853 Sales comparison approach Adj to comparables 0.6% - 79.7% (35.0%) Balance at December 31, 2016 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 3,057 Sales comparison approach Adj to comparables 0.0% - 90.0% (20.2%) Income approach Capitalization rate 9.0% - 10.6% (10.1%) Cost approach Accumulated depreciation 17.0% - 18.0% (17.8%) Construction real estate $ 541 Sales comparison approach Adj to comparables 0.0% - 11.1% (1.6%) Bulk sale approach Discount rate 10.0% (10.0%) Residential real estate $ 2,385 Sales comparison approach Adj to comparables 0.3% - 110.0% (17.0%) Income approach Capitalization rate 10.0% (10.0%) Other real estate owned: Commercial real estate $ 2,644 Sales comparison approach Adj to comparables 0.0% - 68.4% (26.5%) Income approach Capitalization rate 13.0% - 14.0% (13.1%) Construction real estate $ 3,322 Sales comparison approach Adj to comparables 0.0% - 90.0% (24.7%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 931 Sales comparison approach Adj to comparables 3.2% - 79.7% (30.6%) The following methods and assumptions were used by Park in estimating its fair value disclosures for assets and liabilities not discussed above: Cash and cash equivalents: The carrying amounts reported in the consolidated condensed balance sheets for cash and short-term instruments approximate those assets’ fair values. Other investments: FHLB and FRB stock within "Other investments" are carried at their respective redemption values as it is not practical to calculate their fair values. Additional investments within "Other investments" are carried at their cost basis as these investments do not have a readily determinable fair value and Park does not have the ability to influence the operating or financial decisions of the investee. Loans receivable: For variable-rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values. The fair values for certain mortgage loans (e.g., one-to-four family residential) are based on quoted market prices of similar loans sold in conjunction with securitization transactions, adjusted for differences in loan characteristics. The fair values for other loans are estimated using discounted cash flow analyses, based upon interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. The methods utilized to estimate the fair value do not necessarily represent an exit price. Off-balance sheet instruments: Fair values for Park’s loan commitments and standby letters of credit are based on the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing. The carrying amount and fair value are not material. Deposit liabilities: The fair values disclosed for demand deposits (e.g., interest and non-interest checking, savings, and money market accounts) are, by definition, equal to the amounts payable on demand at the reporting date (i.e., their carrying amounts). The carrying amounts for variable-rate, fixed-term certificates of deposit approximate their fair values at the reporting date. Fair values for fixed-rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities of time deposits. Short-term borrowings: The carrying amounts of federal funds purchased, borrowings under repurchase agreements and other short-term borrowings approximate their fair values. Long-term debt: Fair values for long-term debt are estimated using a discounted cash flow calculation that applies interest rates currently being offered on long-term debt to a schedule of monthly maturities. Subordinated notes: Fair values for subordinated notes are estimated using a discounted cash flow calculation that applies interest rate spreads currently being offered on similar debt structures to a schedule of monthly maturities. The fair value of financial instruments at March 31, 2017 and December 31, 2016 , was as follows: March 31, 2017 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 391,772 $ 391,772 $ — $ — $ 391,772 Investment securities (1) 1,503,857 2,621 1,499,155 776 1,502,552 Accrued interest receivable - securities 4,179 — 4,179 — 4,179 Accrued interest receivable - loans 14,449 — — 14,449 14,449 Loans held for sale 6,722 — 6,722 — 6,722 Mortgage IRLCs 234 — 234 — 234 Impaired loans carried at fair value 4,319 — — 4,319 4,319 Other loans, net 5,252,444 — — 5,185,883 5,185,883 Loans receivable, net $ 5,263,719 $ — $ 6,956 $ 5,190,202 $ 5,197,158 Financial liabilities: Noninterest bearing checking accounts $ 1,548,363 $ 1,548,363 $ — $ — $ 1,548,363 Interest bearing transactions accounts 1,310,575 1,310,575 — — 1,310,575 Savings accounts 1,928,507 1,928,507 — — 1,928,507 Time deposits 1,130,409 — 1,133,360 — 1,133,360 Other 2,706 2,706 — — 2,706 Total deposits $ 5,920,560 $ 4,790,151 $ 1,133,360 $ — $ 5,923,511 Short-term borrowings $ 219,863 $ — $ 219,863 $ — $ 219,863 Long-term debt 745,840 — 760,798 — 760,798 Subordinated notes 45,000 — 43,786 — 43,786 Accrued interest payable – deposits 901 46 855 — 901 Accrued interest payable – debt/borrowings 1,288 — 1,288 — 1,288 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226 (1) Investment securities excludes the category "Other investments." This category consists of FHLB and FRB stock carried at their respective redemption values as it is not practical to calculate their fair values. Additional investments within "Other Investments" are carried at their cost basis as these investments do not have a readily determinable fair value and Park does not have the ability to influence the operating or financial decisions of the investee. December 31, 2016 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 146,466 $ 146,466 $ — $ — $ 146,466 Investment securities (1) 1,517,972 2,644 1,511,377 790 1,514,811 Accrued interest receivable - securities 3,849 — 3,849 — 3,849 Accrued interest receivable - loans 14,973 — — 14,973 14,973 Loans held for sale 10,413 — 10,413 — 10,413 Mortgage IRLCs 124 — 124 — 124 Impaired loans carried at fair value 5,983 — — 5,983 5,983 Other loans, net 5,204,713 — — 5,161,919 5,161,919 Loans receivable, net $ 5,221,233 $ — $ 10,537 $ 5,167,902 $ 5,178,439 Financial liabilities: Noninterest bearing checking accounts $ 1,523,417 $ 1,523,417 $ — $ — $ 1,523,417 Interest bearing transactions accounts 1,174,448 1,174,448 — — 1,174,448 Savings accounts 1,704,920 1,704,920 — — 1,704,920 Time deposits 1,117,870 — 1,122,598 — 1,122,598 Other 1,301 1,301 — — 1,301 Total deposits $ 5,521,956 $ 4,404,086 $ 1,122,598 $ — $ 5,526,684 Short-term borrowings $ 394,795 $ — $ 394,795 $ — $ 394,795 Long-term debt 694,281 — 712,958 — 712,958 Subordinated notes 45,000 — 40,903 — 40,903 Accrued interest payable – deposits 900 82 818 — 900 Accrued interest payable – debt/borrowings 1,251 1 1,250 — 1,251 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226 (1) Investment securities excludes the category "Other investments." This category consists of FHLB and FRB stock carried at their respective redemption values as it is not practical to calculate their fair values. Additional investments within "Other Investments" are carried at their cost basis as these investments do not have a readily determinable fair value and Park does not have the ability to influence the operating or financial decisions of the investee.

Other Comprehensive Income (Los

Other Comprehensive Income (Loss) Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Comprehensive Income (Loss) Note [Text Block]	Other Comprehensive Income Other comprehensive income components, net of tax, are shown in the following table for the three-month periods ended March 31, 2017 and 2016 : (in thousands) Changes in pension plan assets and benefit obligations Unrecognized gains and losses on available for sale securities Total Beginning balance at January 1, 2017 $ (14,740 ) $ (3,005 ) $ (17,745 ) Other comprehensive income before reclassifications — 1,022 1,022 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 1,022 1,022 Ending balance at March 31, 2017 $ (14,740 ) $ (1,983 ) $ (16,723 ) Beginning balance at January 1, 2016 $ (15,351 ) $ (292 ) $ (15,643 ) Other comprehensive income before reclassifications — 11,680 11,680 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 11,680 11,680 Ending balance at March 31, 2016 $ (15,351 ) $ 11,388 $ (3,963 ) During the three-month periods ended March 31, 2017 and 2016, there were no reclassifications out of accumulated other comprehensive loss.

Investment in Qualified Afforda

Investment in Qualified Affordable Housing Investment in Qualified Affordable Housing	3 Months Ended
	Mar. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Affordable Housing Program [Text Block]	Investment in Qualified Affordable Housing Park makes certain equity investments in various limited partnerships that sponsor affordable housing projects. The purposes of these investments are to achieve a satisfactory return on capital, help create affordable housing opportunities, and assist the Company to achieve our goals associated with the Community Reinvestment Act. The table below details the balances of Park’s affordable housing tax credit investments and related unfunded commitments as of March 31, 2017 and December 31, 2016. (in thousands) March 31, 2017 December 31, 2016 Affordable housing tax credit investments $ 51,083 $ 52,947 Unfunded commitments 14,282 14,282 Commitments are funded when capital calls are made by the general partner. Park expects that the current commitments will be funded between 2017 and 2027. During the three months ended March 31, 2017 and 2016, Park recognized amortization expense of $1.9 million and $1.8 million , respectively, which was included within the provision for income taxes. Additionally, during the three months ended March 31, 2017 and 2016, Park recognized tax credits and other benefits from its affordable housing tax credit investments of $2.4 million and $2.3 million , respectively.

Repurchase Agreement Borrowings

Repurchase Agreement Borrowings Repurchase Agreement Borrowings	3 Months Ended
	Mar. 31, 2017
Transfers and Servicing [Abstract]
Repurchase Agreement Borrowings	Repurchase Agreement Borrowings Securities sold under agreements to repurchase ("repurchase agreements") with customers represent funds deposited by customers, generally on an overnight basis, that are collateralized by investment securities owned by Park. Repurchase agreements with customers are included in short-term borrowings on the consolidated condensed balance sheets. Park's repurchase agreements with a third-party financial institution are classified as long-term debt on the consolidated condensed balance sheets. All repurchase agreements are subject to terms and conditions of repurchase/security agreements between Park and the client and are accounted for as secured borrowings. Park's repurchase agreements reflected in short-term borrowings consisted of customer accounts and securities which are pledged on an individual security basis. At March 31, 2017 and December 31, 2016 , Park's repurchase agreement borrowings totaled $520 million and $510 million , respectively. At both March 31, 2017 and December 31, 2016 , $300 million of Park's repurchase agreement borrowings were classified as long-term debt with the remaining amount being classified as short-term debt on the consolidated condensed balance sheets. These borrowings were collateralized with U.S. government and agency securities with a carrying value of $594 million and $569 million at March 31, 2017 and December 31, 2016 , respectively. Declines in the value of the collateral would require Park to pledge additional securities. As of March 31, 2017 and December 31, 2016 , Park had $570 million and $640 million , respectively, of available unpledged securities. The table below shows the remaining contractual maturity of repurchase agreements by collateral pledged at March 31, 2017 and December 31, 2016 : March 31, 2017 (in thousands) Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total U.S. government and agency securities $ 218,759 $ — $ — $ 301,104 $ 519,863 December 31, 2016 (in thousands) Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total U.S. government and agency securities $ 208,691 $ — $ — $ 301,104 $ 509,795 On November 30, 2012, Park restructured $300 million in repurchase agreements with a third-party financial institution and paid a $25 million prepayment penalty. The penalty is included in long-term debt and is being amortized as an adjustment to interest expense over the remaining term of the repurchase agreements using the effective interest method. Of the $25 million prepayment penalty, $3.5 million and $4.7 million remained unamortized as of March 31, 2017 and December 31, 2016 , respectively.

Contingent Liabilities Continge

Contingent Liabilities Contingent Liabilities	3 Months Ended
	Mar. 31, 2017
Contingent Liabilities [Abstract]
Commitments and Contingencies Disclosure [Text Block]	Contingent Liabilities The Company is a defendant in lawsuits and other adversary proceedings arising in the ordinary course of business. Legal costs incurred in connection with the resolution of claims and lawsuits are generally expensed as incurred, and the Company establishes accruals for the outcome of litigation where losses are deemed probable and reasonably estimable. The Company’s assessment of the current exposure could change in the event of the discovery of additional facts with respect to legal matters pending against the Company or determinations by judges, juries, administrative agencies or other finders of fact that are not in accordance with the Company’s evaluation of claims. As of March 31, 2017, the Company had accrued charges of approximately $2.3 million for legal contingencies related to various legal and other adversary proceedings.

Subsequent Events Subsequent Ev

Subsequent Events Subsequent Events	3 Months Ended
	Mar. 31, 2017
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events On April 24, 2017, Park prepaid in full the $30.0 million outstanding aggregate principal amount of the 7% Subordinated Notes due April 20, 2022 (the "2012 Notes"), plus accrued interest on the 2012 Notes in the aggregate amount of $140,000 . The 2012 Notes were originally issued on April 20, 2012 to 56 purchasers, all of whom were accredited investors. April 21, 2017 was the earliest repayment date allowable under terms of the Note Purchase Agreement, dated April 20, 2012, under which the 2012 Notes were originally issued.

Loans (Tables)

Loans (Tables)	3 Months Ended
	Mar. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]
Composition Of Loan Portfolio By Class Of Loan	The composition of the loan portfolio, by class of loan, as of March 31, 2017 and December 31, 2016 was as follows: March 31, 2017 December 31, 2016 (In thousands) Loan Balance Accrued Interest Receivable Recorded Investment Loan Balance Accrued Interest Receivable Recorded Investment Commercial, financial and agricultural * $ 995,377 $ 3,898 $ 999,275 $ 994,619 $ 3,558 $ 998,177 Commercial real estate * 1,187,395 3,870 1,191,265 1,155,703 4,161 1,159,864 Construction real estate: Commercial 112,015 338 112,353 135,343 398 135,741 Mortgage 48,193 110 48,303 48,699 106 48,805 Installment 5,026 14 5,040 4,903 17 4,920 Residential real estate: Commercial 396,663 924 397,587 406,687 940 407,627 Mortgage 1,156,543 1,246 1,157,789 1,169,495 1,459 1,170,954 HELOC 211,311 820 212,131 212,441 853 213,294 Installment 18,734 53 18,787 19,874 67 19,941 Consumer 1,178,736 3,118 1,181,854 1,120,850 3,385 1,124,235 Leases 3,648 58 3,706 3,243 29 3,272 Total loans $ 5,313,641 $ 14,449 $ 5,328,090 $ 5,271,857 $ 14,973 $ 5,286,830 * Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.
Recorded Investment In Nonaccrual Restructured And Loans Past Due 90 Days Or More And Accruing	The following tables present the recorded investment in nonaccrual loans, accruing troubled debt restructurings ("TDRs"), and loans past due 90 days or more and still accruing by class of loan as of March 31, 2017 and December 31, 2016 : March 31, 2017 (In thousands) Nonaccrual Loans Accruing Troubled Debt Restructurings Loans Past Due 90 Days or More and Accruing Total Nonperforming Loans Commercial, financial and agricultural $ 18,767 $ 3,825 $ 10 $ 22,602 Commercial real estate 18,474 4,258 — 22,732 Construction real estate: Commercial 1,649 392 — 2,041 Mortgage — 103 — 103 Installment 58 92 — 150 Residential real estate: Commercial 22,715 88 — 22,803 Mortgage 17,632 9,983 804 28,419 HELOC 1,683 849 26 2,558 Installment 577 630 — 1,207 Consumer 2,739 1,003 1,046 4,788 Total loans $ 84,294 $ 21,223 $ 1,886 $ 107,403 December 31, 2016 (In thousands) Nonaccrual Loans Accruing Troubled Debt Restructurings Loans Past Due 90 Days or More and Accruing Total Nonperforming Loans Commercial, financial and agricultural $ 20,057 $ 600 $ 15 $ 20,672 Commercial real estate 19,169 5,305 — 24,474 Construction real estate: Commercial 1,833 393 — 2,226 Mortgage — 104 — 104 Installment 61 95 12 168 Residential real estate: Commercial 23,013 89 — 23,102 Mortgage 18,313 9,612 887 28,812 HELOC 1,783 673 25 2,481 Installment 644 609 60 1,313 Consumer 2,949 748 1,139 4,836 Total loans $ 87,822 $ 18,228 $ 2,138 $ 108,188
Loans Individually And Collectively Evaluated For Impairment	The following table provides additional information regarding those nonaccrual loans and accruing TDR loans that were individually evaluated for impairment and those collectively evaluated for impairment as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 (In thousands) Nonaccrual and Accruing TDRs Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Nonaccrual and Accruing TDRs Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Commercial, financial and agricultural $ 22,592 $ 22,542 $ 50 $ 20,657 $ 20,624 $ 33 Commercial real estate 22,732 22,732 — 24,474 24,474 — Construction real estate: Commercial 2,041 2,041 — 2,226 2,226 — Mortgage 103 — 103 104 — 104 Installment 150 — 150 156 — 156 Residential real estate: Commercial 22,803 22,803 — 23,102 23,102 — Mortgage 27,615 — 27,615 27,925 — 27,925 HELOC 2,532 — 2,532 2,456 — 2,456 Installment 1,207 — 1,207 1,253 — 1,253 Consumer 3,742 9 3,733 3,697 — 3,697 Total loans $ 105,517 $ 70,127 $ 35,390 $ 106,050 $ 70,426 $ 35,624
Loans Individually Evaluated For Impairment By Class Of Loans	The following table presents loans individually evaluated for impairment by class of loan, together with the related allowance recorded, as of March 31, 2017 and December 31, 2016 . March 31, 2017 December 31, 2016 (In thousands) Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated Unpaid Principal Balance Recorded Investment Allowance for Loan Losses Allocated With no related allowance recorded: Commercial, financial and agricultural $ 37,260 $ 21,001 $ — $ 41,075 $ 19,965 $ — Commercial real estate 22,553 22,094 — 23,961 23,474 — Construction real estate: Commercial 1,499 1,471 — 3,662 2,226 — Residential real estate: Commercial 22,924 22,302 — 24,409 22,687 — With an allowance recorded: Commercial, financial and agricultural 6,419 1,541 596 810 659 152 Commercial real estate 695 638 179 1,014 1,000 309 Construction real estate: Commercial 1,956 570 32 — — — Residential real estate: Commercial 516 501 275 427 415 87 Consumer 9 9 9 — — — Total $ 93,831 $ 70,127 $ 1,091 $ 95,358 $ 70,426 $ 548
Average Recorded Investment And Interest Income Recognized On Loans Individually Evaluated For Impairment	The following table presents the average recorded investment and interest income recognized subsequent to impairment on loans individually evaluated for impairment as of and for the three months ended March 31, 2017 and March 31, 2016 : Three Months Ended Three Months Ended (In thousands) Recorded Investment as of March 31, 2017 Average Recorded Investment Interest Income Recognized Recorded Investment as of March 31, 2016 Average Recorded Investment Interest Income Recognized Commercial, financial and agricultural $ 22,542 $ 19,471 $ 220 $ 28,596 $ 29,858 $ 238 Commercial real estate 22,732 23,297 231 18,068 17,100 180 Construction real estate: Commercial 2,041 2,096 15 6,888 6,814 13 Residential real estate: Commercial 22,803 23,081 345 24,619 24,897 1,965 Consumer 9 5 — — — — Total $ 70,127 $ 67,950 $ 811 $ 78,171 $ 78,669 $ 2,396
Aging Of Recorded Investment In Past Due Loans	The following tables present the aging of the recorded investment in past due loans as of March 31, 2017 and December 31, 2016 by class of loan. March 31, 2017 (In thousands) Accruing Loans Past Due 30-89 Days Past Due Nonaccrual Loans and Loans Past Due 90 Days or More and Accruing (1) Total Past Due Total Current (2) Total Recorded Investment Commercial, financial and agricultural $ 541 $ 2,272 $ 2,813 $ 996,462 $ 999,275 Commercial real estate 135 2,591 2,726 1,188,539 1,191,265 Construction real estate: Commercial — 24 24 112,329 112,353 Mortgage — — — 48,303 48,303 Installment 210 49 259 4,781 5,040 Residential real estate: Commercial 170 2,067 2,237 395,350 397,587 Mortgage 7,566 9,391 16,957 1,140,832 1,157,789 HELOC 632 1,017 1,649 210,482 212,131 Installment 197 178 375 18,412 18,787 Consumer 7,734 1,806 9,540 1,172,314 1,181,854 Leases — — — 3,706 3,706 Total loans $ 17,185 $ 19,395 $ 36,580 $ 5,291,510 $ 5,328,090 (1) Includes $1.9 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $66.8 million of nonaccrual loans which are current in regards to contractual principal and interest payments. December 31, 2016 (in thousands) Accruing Loans Past Due 30-89 Days Past Due (1) Total Past Due Total Current (2) Total Recorded Investment Commercial, financial and agricultural $ 371 $ 4,113 $ 4,484 $ 993,693 $ 998,177 Commercial real estate 355 2,499 2,854 1,157,010 1,159,864 Construction real estate: Commercial — 541 541 135,200 135,741 Mortgage 559 — 559 48,246 48,805 Installment 223 64 287 4,633 4,920 Residential real estate: Commercial 330 3,631 3,961 403,666 407,627 Mortgage 10,854 9,769 20,623 1,150,331 1,170,954 HELOC 970 1,020 1,990 211,304 213,294 Installment 350 319 669 19,272 19,941 Consumer 12,579 2,094 14,673 1,109,562 1,124,235 Leases — — — 3,272 3,272 Total loans $ 26,591 $ 24,050 $ 50,641 $ 5,236,189 $ 5,286,830 (1) Includes $2.1 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $65.9 million of nonaccrual loans which are current in regards to contractual principal and interest payments.
Recorded Investment By Loan Grade	The tables below present the recorded investment by loan grade at March 31, 2017 and December 31, 2016 for all commercial loans: March 31, 2017 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 1,394 $ 179 $ 22,592 $ 975,110 $ 999,275 Commercial real estate * 5,873 268 22,732 1,162,392 1,191,265 Construction real estate: Commercial 90 116 2,041 110,106 112,353 Residential real estate: Commercial 1,061 216 22,803 373,507 397,587 Leases — — — 3,706 3,706 Total commercial loans $ 8,418 $ 779 $ 70,168 $ 2,624,821 $ 2,704,186 * Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class. December 31, 2016 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 5,826 $ — $ 20,657 $ 971,694 $ 998,177 Commercial real estate * 7,548 190 24,474 1,127,652 1,159,864 Construction real estate: Commercial 287 118 2,226 133,110 135,741 Residential real estate: Commercial 1,055 124 23,102 383,346 407,627 Leases — — — 3,272 3,272 Total Commercial Loans $ 14,716 $ 432 $ 70,459 $ 2,619,074 $ 2,704,681
TDR Number Of Contracts Modified And Recorded Investment	The following tables detail the number of contracts modified as TDRs during the three -month periods ended March 31, 2017 and March 31, 2016 , as well as the recorded investment of these contracts at March 31, 2017 and March 31, 2016 . The recorded investment pre- and post-modification is generally the same due to the fact that Park does not typically provide for forgiveness of principal. Three Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 6 $ 3,079 $ 1,019 $ 4,098 Commercial real estate 4 — 379 379 Construction real estate: Commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 3 — 2,140 2,140 Mortgage 9 — 608 608 HELOC 3 200 6 206 Installment 1 34 — 34 Consumer 57 272 348 620 Total loans 83 $ 3,585 $ 4,500 $ 8,085 Three Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 7 $ 131 $ 716 $ 847 Commercial real estate — — — — Construction real estate: Commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 2 — 617 617 Mortgage 5 99 217 316 HELOC 6 64 122 186 Installment — — — — Consumer 64 52 511 563 Total loans 84 $ 346 $ 2,183 $ 2,529 Of those loans which were modified and determined to be a TDR during the three -month period ended March 31, 2017 , $2.6 million were on nonaccrual status as of December 31, 2016 . Of those loans which were modified and determined to be a TDR during the three -month period ended March 31, 2016 , $922,000 were on nonaccrual status as of December 31, 2015 .
Recorded Investment In Financing Receivable Modified As TDR Within 12 Months	The following tables present the recorded investment in financing receivables which were modified as TDRs within the previous 12 months and for which there was a payment default during the three-month periods ended March 31, 2017 and March 31, 2016 , respectively. For these tables, a loan is considered to be in default when it becomes 30 days contractually past due under the modified terms. The additional allowance for loan loss resulting from the defaults on TDR loans was immaterial. Three Months Ended Three Months Ended (In thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial, financial and agricultural 6 $ 198 1 $ 1 Commercial real estate 5 838 — — Construction real estate: Commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 3 49 1 90 Mortgage 8 631 8 516 HELOC — — — — Installment 1 3 1 25 Consumer 29 268 44 463 Leases — — — — Total loans 52 $ 1,987 55 $ 1,095 Of the $2.0 million in modified TDRs which defaulted during the three months ended March 31, 2017 , $60,000 were accruing loans and $1.9 million were nonaccrual loans. Of the $1.1 million in modified TDRs which defaulted during the three months ended March 31, 2016 , $37,000 were accruing loans and $1.1 million were nonaccrual loans.

Allowance For Loan Losses (Tabl

Allowance For Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2017
Allowance for Loan and Lease Losses Write-offs, Net [Abstract]
Activity In The Allowance For Loan Losses	The activity in the allowance for loan losses for the three months ended March 31, 2017 and March 31, 2016 is summarized below. Three Months Ended (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Beginning balance $ 13,434 $ 10,432 $ 5,247 $ 10,958 $ 10,553 $ — $ 50,624 Charge-offs 339 112 27 480 2,750 — 3,708 Recoveries 369 114 58 291 1,298 — 2,130 Net (recoveries)/charge-offs (30 ) (2 ) (31 ) 189 1,452 — 1,578 (Recovery)/provision (27 ) (153 ) (910 ) (24 ) 1,990 — 876 Ending balance $ 13,437 $ 10,281 $ 4,368 $ 10,745 $ 11,091 $ — $ 49,922 Three Months Ended (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Beginning balance $ 13,694 $ 9,197 $ 8,564 $ 13,514 $ 11,524 $ 1 $ 56,494 Charge-offs 274 1 — 747 2,379 — 3,401 Recoveries 427 218 939 471 890 — 2,945 Net (recoveries)/charge-offs (153 ) (217 ) (939 ) 276 1,489 — 456 Provision/(recovery) 393 38 (816 ) 150 1,145 — 910 Ending balance $ 14,240 $ 9,452 $ 8,687 $ 13,388 $ 11,180 $ 1 $ 56,948
Composition Of The Allowance For Loan Losses	The composition of the allowance for loan losses at March 31, 2017 and December 31, 2016 was as follows: March 31, 2017 (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Ending allowance balance attributed to loans: Individually evaluated for impairment $ 596 $ 179 $ 32 $ 275 $ 9 $ — $ 1,091 Collectively evaluated for impairment 12,841 10,102 4,336 10,470 11,082 — 48,831 Total ending allowance balance $ 13,437 $ 10,281 $ 4,368 $ 10,745 $ 11,091 $ — $ 49,922 Loan balance: Loans individually evaluated for impairment $ 22,541 $ 22,708 $ 2,039 $ 22,802 $ 9 $ — $ 70,099 Loans collectively evaluated for impairment 972,836 1,164,687 163,195 1,760,449 1,178,727 3,648 5,243,542 Total ending loan balance $ 995,377 $ 1,187,395 $ 165,234 $ 1,783,251 $ 1,178,736 $ 3,648 $ 5,313,641 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 2.64 % 0.79 % 1.57 % 1.21 % — % — % 1.56 % Loans collectively evaluated for impairment 1.32 % 0.87 % 2.66 % 0.59 % 0.94 % — % 0.93 % Total 1.35 % 0.87 % 2.64 % 0.60 % 0.94 % — % 0.94 % Recorded investment: Loans individually evaluated for impairment $ 22,542 $ 22,732 $ 2,041 $ 22,803 $ 9 $ — $ 70,127 Loans collectively evaluated for impairment 976,733 1,168,533 163,655 1,763,491 1,181,845 3,706 5,257,963 Total ending recorded investment $ 999,275 $ 1,191,265 $ 165,696 $ 1,786,294 $ 1,181,854 $ 3,706 $ 5,328,090 December 31, 2016 (In thousands) Commercial, financial and agricultural Commercial real estate Construction real estate Residential real estate Consumer Leases Total Allowance for loan losses: Ending allowance balance attributed to loans: Individually evaluated for impairment $ 152 $ 309 $ — $ 87 $ — $ — $ 548 Collectively evaluated for impairment 13,282 10,123 5,247 10,871 10,553 — 50,076 Total ending allowance balance $ 13,434 $ 10,432 $ 5,247 $ 10,958 $ 10,553 $ — $ 50,624 Loan balance: Loans individually evaluated for impairment $ 20,622 $ 24,465 $ 2,226 $ 23,102 $ — $ — $ 70,415 Loans collectively evaluated for impairment 973,997 1,131,238 186,719 1,785,395 1,120,850 3,243 5,201,442 Total ending loan balance $ 994,619 $ 1,155,703 $ 188,945 $ 1,808,497 $ 1,120,850 $ 3,243 $ 5,271,857 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 0.74 % 1.26 % — % 0.38 % — % — % 0.78 % Loans collectively evaluated for impairment 1.36 % 0.89 % 2.81 % 0.61 % 0.94 % — % 0.96 % Total 1.35 % 0.90 % 2.78 % 0.61 % 0.94 % — % 0.96 % Recorded investment: Loans individually evaluated for impairment $ 20,624 $ 24,474 $ 2,226 $ 23,102 $ — $ — $ 70,426 Loans collectively evaluated for impairment 977,553 1,135,390 187,240 1,788,714 1,124,235 3,272 5,216,404 Total ending recorded investment $ 998,177 $ 1,159,864 $ 189,466 $ 1,811,816 $ 1,124,235 $ 3,272 $ 5,286,830

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	3 Months Ended
	Mar. 31, 2017
Other Real Estate Owned [Abstract]
Schedule of Assets Repossessed or Foreclosed, or loans in process of foreclosure [Table Text Block] [Text Block]	Park typically transfers a loan to OREO at the time that Park takes deed/title to the asset. The carrying amounts of foreclosed properties held at March 31, 2017 and December 31, 2016 are listed below, as well as the recorded investment of loans secured by residential real estate properties for which formal foreclosure proceedings were in process at those dates. (in thousands) March 31, 2017 December 31, 2016 OREO: Commercial real estate $ 7,642 $ 7,642 Construction real estate 4,633 4,624 Residential real estate 1,418 1,660 Total OREO $ 13,693 $ 13,926 Loans in process of foreclosure: Residential real estate $ 3,456 $ 3,250

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Summary Of Computation Of Basic And Diluted Earnings Per Common Share	The following table sets forth the computation of basic and diluted earnings per common share for the three months ended March 31, 2017 and 2016 . Three Months Ended (In thousands, except share and per common share data) 2017 2016 Numerator: Net income $ 20,267 $ 18,686 Denominator: Weighted-average common shares outstanding 15,312,059 15,330,813 Effect of dilutive performance-based restricted stock units 120,710 75,695 Weighted-average common shares outstanding adjusted for the effect of dilutive performance-based restricted stock units 15,432,769 15,406,508 Earnings per common share: Basic earnings per common share $ 1.32 $ 1.22 Diluted earnings per common share $ 1.31 $ 1.21

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Schedule Of Operating Results By Segment	Operating Results for the three months ended March 31, 2017 (In thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 57,480 $ 1,478 $ 201 $ (207 ) $ 58,952 Provision for (recovery of) loan losses 720 437 (281 ) — 876 Other income (loss) 17,711 — — (204 ) 17,507 Other expense 43,803 736 776 2,147 47,462 Income (loss) before income taxes $ 30,668 $ 305 $ (294 ) $ (2,558 ) $ 28,121 Federal income taxes (benefit) 9,182 107 (103 ) (1,332 ) 7,854 Net income (loss) $ 21,486 $ 198 $ (191 ) $ (1,226 ) $ 20,267 Assets (as of March 31, 2017) $ 7,667,288 $ 34,574 $ 24,727 $ 18,101 $ 7,744,690 Operating Results for the three months ended March 31, 2016 (In thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 57,155 $ 1,504 $ 1,161 $ (1 ) $ 59,819 Provision for (recovery of) loan losses 1,533 527 (1,150 ) — 910 Other income 17,223 — 34 132 17,389 Other expense 41,360 3,798 1,404 3,337 49,899 Income (loss) before income taxes $ 31,485 $ (2,821 ) $ 941 $ (3,206 ) $ 26,399 Federal income taxes (benefit) 9,741 (985 ) 329 (1,372 ) 7,713 Net income (loss) $ 21,744 $ (1,836 ) $ 612 $ (1,834 ) $ 18,686 Assets (as of March 31, 2016) $ 7,347,378 $ 34,637 $ 34,592 $ 11,578 $ 7,428,185

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Schedule Of Investment Securities	Investment securities at March 31, 2017 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Unrecognized Holding Gains Gross Unrecognized Holding Losses Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 270,000 $ — $ 1,579 $ 268,421 U.S. Government sponsored entities' asset-backed securities 951,328 6,044 9,793 947,579 Other equity securities 1,119 2,278 — 3,397 Total $ 1,222,447 $ 8,322 $ 11,372 $ 1,219,397 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Gross Estimated Fair Value U.S. Government sponsored entities' asset-backed securities $ 65,221 $ 1,019 $ 77 $ 66,163 Obligations of states and political subdivisions 219,239 1,698 $ 3,945 216,992 Total $ 284,460 $ 2,717 $ 4,022 $ 283,155 Investment securities at December 31, 2016 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Gross Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 270,000 $ — $ 2,467 $ 267,533 U.S. Government sponsored entities' asset-backed securities 991,642 5,372 9,842 987,172 Other equity securities 1,119 2,315 — 3,434 Total $ 1,262,761 $ 7,687 $ 12,309 $ 1,258,139 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Gross Estimated Fair Value Obligations of states and political subdivision $ 188,622 $ 977 $ 5,148 $ 184,451 U.S. Government sponsored entities' asset-backed securities 71,211 1,097 87 72,221 Total $ 259,833 $ 2,074 $ 5,235 $ 256,672
Schedule Of Unrealized Loss On Securities	ecurities with unrecognized losses at March 31, 2017 , were as follows: Unrecognized loss position for less than 12 months Unrecognized loss position for 12 months or longer Total (In thousands) Fair value Unrecognized losses Fair value Unrecognized Fair value Unrecognized Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 248,525 $ 1,475 $ 19,896 $ 104 $ 268,421 $ 1,579 U.S. Government sponsored entities' asset-backed securities 576,446 9,488 $ 26,282 305 $ 602,728 9,793 Total $ 824,971 $ 10,963 $ 46,178 $ 409 $ 871,149 $ 11,372 Securities Held-to-Maturity U.S. Government sponsored entities' asset-backed securities $ — $ — $ 7,509 $ 77 $ 7,509 $ 77 Obligations of states and political subdivisions 118,439 $ 3,945 — — $ 118,439 3,945 Total $ 118,439 $ 3,945 $ 7,509 $ 77 $ 125,948 $ 4,022 ecurities with unrecognized losses at December 31, 2016 , were as follows: Unrecognized loss position for less than 12 months Unrecognized loss position for 12 months or longer Total (In thousands) Fair value Unrecognized losses Fair value Unrecognized Fair value Unrecognized Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 247,695 $ 2,305 $ 19,838 $ 162 $ 267,533 $ 2,467 U.S. Government sponsored entities' asset-backed securities 612,321 9,473 27,325 369 639,646 9,842 Total $ 860,016 $ 11,778 $ 47,163 $ 531 $ 907,179 $ 12,309 Securities Held-to-Maturity Obligations of states and political subdivision $ 134,909 $ 5,148 $ — $ — $ 134,909 $ 5,148 U.S. Government sponsored entities' asset-backed securities — — 7,564 87 7,564 87 Total $ 134,909 $ 5,148 $ 7,564 $ 87 $ 142,473 $ 5,235
Amortized Cost And Estimated Fair Value Of Investments In Debt Securities By Contractual Maturity	The amortized cost and estimated fair value of investments in debt securities at March 31, 2017 , are shown in the following table by contractual maturity, except for asset-backed securities, which are shown as a single total, due to the unpredictability of the timing of principal repayments. Securities Available-for-Sale (In thousands) Amortized cost Fair value Tax equivalent yield Obligations of U.S. Treasury and other U.S. Government sponsored entities' obligations: Due less than one year $ 50,000 $ 49,927 0.96 % Due one through five years 220,000 218,494 1.24 % Total $ 270,000 $ 268,421 1.18 % U.S. Government sponsored entities' asset-backed securities: $ 951,328 $ 947,579 2.10 % Securities Held-to-Maturity (In thousands) Amortized cost Fair value Tax equivalent yield (1) Obligations of state and political subdivisions: Due over ten years $ 219,239 $ 216,992 4.52 % Total (1) $ 219,239 $ 216,992 4.52 % U.S. Government sponsored entities' asset-backed securities $ 65,221 $ 66,163 3.28 %

Other Investment Securities (Ta

Other Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2017
Other Investment Securities [Abstract]
Schedule Of Other Investment Securities	Other investment securities consist of stock investments in the Federal Home Loan Bank ("FHLB"), the Federal Reserve Bank ("FRB") and other equities carried at cost. The FHLB and FRB restricted stock investments are carried at their redemption value. March 31, December 31, 2016 (In thousands) FHLB stock $ 50,086 $ 50,086 FRB stock 8,225 8,225 Other equity investments carried at cost 3,500 3,500 Total other investment securities $ 61,811 $ 61,811

Share Based Compensation (Table

Share Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]	A summary of changes in the common shares subject to nonvested PBRSUs for the three months ended March 31, 2017 follows: Common shares subject to PBRSUs Nonvested at January 1, 2017 85,425 Granted 45,788 Vested 9,674 Forfeited 150 Adjustment for performance conditions of PBRSUs (1) (1,802 ) Nonvested at March 31, 2017 119,587
Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]	The following table details expected additional share-based compensation expense related to PBRSUs currently outstanding: (In thousands) Nine months ending December 31, 2017 $ 2,247 2018 2,641 2019 1,964 2020 890 2021 149 Total $ 7,891

Pension Plan (Tables)

Pension Plan (Tables)	3 Months Ended
	Mar. 31, 2017
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Components Of Net Periodic Benefit Expense	The following table shows the components of net periodic benefit income: Three Months Ended (In thousands) 2017 2016 Service cost $ 1,317 $ 1,264 Interest cost 1,271 1,217 Expected return on plan assets (2,863 ) (2,737 ) Amortization of prior service cost — — Recognized net actuarial loss 144 193 Net periodic benefit income $ (131 ) $ (63 )

Loan Servicing (Tables)

Loan Servicing (Tables)	3 Months Ended
	Mar. 31, 2017
Transfers and Servicing of Financial Assets [Abstract]
Activity For MSRs And Related Valuation Allowance	Activity for MSRs and the related valuation allowance follows: Three Months Ended (In thousands) 2017 2016 Mortgage servicing rights: Carrying amount, net, beginning of period $ 9,266 $ 9,008 Additions 354 316 Amortization (358 ) (375 ) Changes in valuation allowance 59 — Carrying amount, net, end of period $ 9,321 $ 8,949 Valuation allowance: Beginning of period $ 735 $ 542 Changes in valuation allowance (59 ) — End of period $ 676 $ 542

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Assets And Liabilities Measured At Fair Value On A Recurring Basis	The following table presents assets and liabilities measured at fair value on a recurring basis: Fair Value Measurements at March 31, 2017 using: (In thousands) Level 1 Level 2 Level 3 Balance at March 31, 2017 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 268,421 $ — $ 268,421 U.S. Government sponsored entities’ asset-backed securities — 947,579 — 947,579 Equity securities 2,621 — 776 3,397 Mortgage loans held for sale — 6,722 — 6,722 Mortgage IRLCs — 234 — 234 Liabilities Fair value swap $ — $ — $ 226 $ 226 Fair Value Measurements at December 31, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2016 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 267,533 $ — $ 267,533 U.S. Government sponsored entities’ asset-backed securities — 987,172 — 987,172 Equity securities 2,644 — 790 3,434 Mortgage loans held for sale — 10,413 — 10,413 Mortgage IRLCs — 124 — 124 Liabilities Fair value swap $ — $ — $ 226 $ 226
Reconciliation Of Level 3 Input For Financial Instruments Measured On Recurring Basis	The tables below are a reconciliation of the beginning and ending balances of the Level 3 inputs for the three months ended March 31, 2017 and 2016 , for financial instruments measured on a recurring basis and classified as Level 3: Level 3 Fair Value Measurements Three months ended March 31, 2017 and 2016 (In thousands) Equity Securities Fair value swap Balance at January 1, 2017 $ 790 $ (226 ) Total gains/(losses) Included in other comprehensive income (14 ) — Balance at March 31, 2017 $ 776 $ (226 ) Balance at January 1, 2016 $ 769 $ (226 ) Total gains/(losses) Included in other comprehensive income 44 — Balance at March 31, 2016 $ 813 $ (226 )
Assets And Liabilities Measured At Fair Value On A Nonrecurring Basis	The following tables present assets and liabilities measured at fair value on a nonrecurring basis. Collateral dependent impaired loans are carried at fair value if they have been charged down to fair value or if a specific valuation allowance has been established. A new cost basis is established at the time a property is initially recorded in OREO. OREO properties are carried at fair value if a devaluation has been taken to the property's value subsequent to the initial measurement. Fair Value Measurements at March 31, 2017 using: (In thousands) Level 1 Level 2 Level 3 Balance at March 31, 2017 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 2,647 $ 2,647 Construction real estate — — 561 561 Residential real estate — — 1,111 1,111 Total impaired loans recorded at fair value $ — $ — $ 4,319 $ 4,319 Mortgage servicing rights $ — $ 6,892 $ — $ 6,892 OREO: Commercial real estate — — 2,644 2,644 Construction real estate — — 3,331 3,331 Residential real estate — — 853 853 Total OREO recorded at fair value $ — $ — $ 6,828 $ 6,828 Fair Value Measurements at December 31, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2016 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 3,057 $ 3,057 Construction real estate — — 541 541 Residential real estate — — 2,385 2,385 Total impaired loans recorded at fair value $ — $ — $ 5,983 $ 5,983 Mortgage servicing rights $ — $ 6,769 $ — $ 6,769 OREO: Commercial real estate — — 2,644 2,644 Construction real estate — — 3,322 3,322 Residential real estate — — 931 931 Total OREO recorded at fair value $ — $ — $ 6,897 $ 6,897
Schedule of Impaired Financing Receivables Additional Information [Line Items]
Schedule of impaired financing receivables additional info [Abstract]	The table below provides additional detail on those impaired loans which are recorded at fair value as well as the remaining impaired loan portfolio not included above. The remaining impaired loans consist of loans which are not collateral dependent as well as loans carried at cost as the fair value of the underlying collateral or the present value of expected future cash flows on each of the loans exceeded the book value for each respective credit. March 31, 2017 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 4,805 $ 2,593 $ 486 $ 4,319 Remaining impaired loans 65,322 21,138 605 64,717 Total impaired loans $ 70,127 $ 23,731 $ 1,091 $ 69,036 December 31, 2016 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 6,379 $ 3,681 $ 396 $ 5,983 Remaining impaired loans 64,047 21,262 152 63,895 Total impaired loans $ 70,426 $ 24,943 $ 548 $ 69,878
Qualitative Information about Level 3 Fair Value Measurements Measured on Non-Recurring Basis	The following tables present qualitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at March 31, 2017 and December 31, 2016 : March 31, 2017 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 2,647 Sales comparison approach Adj to comparables 0.0% - 90.0% (21.3%) Income approach Capitalization rate 9.0% - 10.6% (10.0%) Cost approach Accumulated depreciation 17.0% - 90.1% (60.5%) Construction real estate $ 561 Sales comparison approach Adj to comparables 0.0% - 4.8% (0.7%) Bulk sale approach Discount rate 10.0% (10.0%) Residential real estate $ 1,111 Sales comparison approach Adj to comparables 0.3% - 110.0% (16.5%) Income approach Capitalization rate 10.5% (10.5%) Other real estate owned: Commercial real estate $ 2,644 Sales comparison approach Adj to comparables 0.0% - 68.4% (26.5%) Income approach Capitalization rate 13.0% - 14.0% (13.1%) Construction real estate $ 3,331 Sales comparison approach Adj to comparables 0.0% - 90.0% (24.7%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 853 Sales comparison approach Adj to comparables 0.6% - 79.7% (35.0%) Balance at December 31, 2016 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 3,057 Sales comparison approach Adj to comparables 0.0% - 90.0% (20.2%) Income approach Capitalization rate 9.0% - 10.6% (10.1%) Cost approach Accumulated depreciation 17.0% - 18.0% (17.8%) Construction real estate $ 541 Sales comparison approach Adj to comparables 0.0% - 11.1% (1.6%) Bulk sale approach Discount rate 10.0% (10.0%) Residential real estate $ 2,385 Sales comparison approach Adj to comparables 0.3% - 110.0% (17.0%) Income approach Capitalization rate 10.0% (10.0%) Other real estate owned: Commercial real estate $ 2,644 Sales comparison approach Adj to comparables 0.0% - 68.4% (26.5%) Income approach Capitalization rate 13.0% - 14.0% (13.1%) Construction real estate $ 3,322 Sales comparison approach Adj to comparables 0.0% - 90.0% (24.7%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 931 Sales comparison approach Adj to comparables 3.2% - 79.7% (30.6%)
Fair Value, by Balance Sheet Grouping	The fair value of financial instruments at March 31, 2017 and December 31, 2016 , was as follows: March 31, 2017 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 391,772 $ 391,772 $ — $ — $ 391,772 Investment securities (1) 1,503,857 2,621 1,499,155 776 1,502,552 Accrued interest receivable - securities 4,179 — 4,179 — 4,179 Accrued interest receivable - loans 14,449 — — 14,449 14,449 Loans held for sale 6,722 — 6,722 — 6,722 Mortgage IRLCs 234 — 234 — 234 Impaired loans carried at fair value 4,319 — — 4,319 4,319 Other loans, net 5,252,444 — — 5,185,883 5,185,883 Loans receivable, net $ 5,263,719 $ — $ 6,956 $ 5,190,202 $ 5,197,158 Financial liabilities: Noninterest bearing checking accounts $ 1,548,363 $ 1,548,363 $ — $ — $ 1,548,363 Interest bearing transactions accounts 1,310,575 1,310,575 — — 1,310,575 Savings accounts 1,928,507 1,928,507 — — 1,928,507 Time deposits 1,130,409 — 1,133,360 — 1,133,360 Other 2,706 2,706 — — 2,706 Total deposits $ 5,920,560 $ 4,790,151 $ 1,133,360 $ — $ 5,923,511 Short-term borrowings $ 219,863 $ — $ 219,863 $ — $ 219,863 Long-term debt 745,840 — 760,798 — 760,798 Subordinated notes 45,000 — 43,786 — 43,786 Accrued interest payable – deposits 901 46 855 — 901 Accrued interest payable – debt/borrowings 1,288 — 1,288 — 1,288 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226 (1) Investment securities excludes the category "Other investments." This category consists of FHLB and FRB stock carried at their respective redemption values as it is not practical to calculate their fair values. Additional investments within "Other Investments" are carried at their cost basis as these investments do not have a readily determinable fair value and Park does not have the ability to influence the operating or financial decisions of the investee. December 31, 2016 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 146,466 $ 146,466 $ — $ — $ 146,466 Investment securities (1) 1,517,972 2,644 1,511,377 790 1,514,811 Accrued interest receivable - securities 3,849 — 3,849 — 3,849 Accrued interest receivable - loans 14,973 — — 14,973 14,973 Loans held for sale 10,413 — 10,413 — 10,413 Mortgage IRLCs 124 — 124 — 124 Impaired loans carried at fair value 5,983 — — 5,983 5,983 Other loans, net 5,204,713 — — 5,161,919 5,161,919 Loans receivable, net $ 5,221,233 $ — $ 10,537 $ 5,167,902 $ 5,178,439 Financial liabilities: Noninterest bearing checking accounts $ 1,523,417 $ 1,523,417 $ — $ — $ 1,523,417 Interest bearing transactions accounts 1,174,448 1,174,448 — — 1,174,448 Savings accounts 1,704,920 1,704,920 — — 1,704,920 Time deposits 1,117,870 — 1,122,598 — 1,122,598 Other 1,301 1,301 — — 1,301 Total deposits $ 5,521,956 $ 4,404,086 $ 1,122,598 $ — $ 5,526,684 Short-term borrowings $ 394,795 $ — $ 394,795 $ — $ 394,795 Long-term debt 694,281 — 712,958 — 712,958 Subordinated notes 45,000 — 40,903 — 40,903 Accrued interest payable – deposits 900 82 818 — 900 Accrued interest payable – debt/borrowings 1,251 1 1,250 — 1,251 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226 (1) Investment securities excludes the category "Other investments." This category consists of FHLB and FRB stock carried at their respective redemption values as it is not practical to calculate their fair values. Additional investments within "Other Investments" are carried at their cost basis as these investments do not have a readily determinable fair value and Park does not have the ability to influence the operating or financial decisions of the investee.

Other Comprehensive Income (L40

Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) Net of Tax (Tables)	3 Months Ended
	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Comprehensive Income (Loss) [Table Text Block]	Other comprehensive income components, net of tax, are shown in the following table for the three-month periods ended March 31, 2017 and 2016 : (in thousands) Changes in pension plan assets and benefit obligations Unrecognized gains and losses on available for sale securities Total Beginning balance at January 1, 2017 $ (14,740 ) $ (3,005 ) $ (17,745 ) Other comprehensive income before reclassifications — 1,022 1,022 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 1,022 1,022 Ending balance at March 31, 2017 $ (14,740 ) $ (1,983 ) $ (16,723 ) Beginning balance at January 1, 2016 $ (15,351 ) $ (292 ) $ (15,643 ) Other comprehensive income before reclassifications — 11,680 11,680 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 11,680 11,680 Ending balance at March 31, 2016 $ (15,351 ) $ 11,388 $ (3,963 )

Investment in Qualified Affor41

Investment in Qualified Affordable Housing (Tables)	3 Months Ended
	Mar. 31, 2017
Schedule of Equity Method Investments [Line Items]
Activity in Affordable Housing Program Obligation [Table Text Block]	The table below details the balances of Park’s affordable housing tax credit investments and related unfunded commitments as of March 31, 2017 and December 31, 2016. (in thousands) March 31, 2017 December 31, 2016 Affordable housing tax credit investments $ 51,083 $ 52,947 Unfunded commitments 14,282 14,282

Repurchase Agreement Borrowin42

Repurchase Agreement Borrowings (Tables)	3 Months Ended
	Mar. 31, 2017
Transfers and Servicing [Abstract]
Schedule of Assets and Associated Liabilities Accounted for as Secured Borrowings [Table Text Block]	at March 31, 2017 and December 31, 2016 : March 31, 2017 (in thousands) Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total U.S. government and agency securities $ 218,759 $ — $ — $ 301,104 $ 519,863 December 31, 2016 (in thousands) Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 days 30 - 90 days Greater than 90 days Total U.S. government and agency securities $ 208,691 $ — $ — $ 301,104 $ 509,795

Loans (Narrative) (Details)

Loans (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Deferred Income	$ 11,700,000		$ 11,100,000
Troubled Debt Restructuring, Classification removed	0	$ 806,000
Partial Charge-Offs On Impaired Loans	23,731,000		24,943,000
Impaired Financing Receivable, Related Allowance	1,091,000		548,000
Recorded investment, related to loans	3,300,000		2,100,000
Troubled Debt Restructuring Included In Nonaccrual Loans	47,800,000		46,900,000
TDRs included in accruing loan totals	21,200,000		18,200,000
Nonaccrual Trouble Debt Restructuring Current	40,200,000		38,000,000
Commitments to lend additional funds to borrowers whose terms had been modified in a TDR	1,100,000		700,000
Specific reserves related to troubled debt restructuring	500,000		200,000
Additional Specific Reserves Related To Troubled Debt Restructuring	280,000	25,000
Modified substandard commercial loans, total recorded investment	113,000	0
Modified substandard consumer loans, total recorded investment	1,400,000	2,000,000
Loan Modifications on Nonacrrual status	$ 2,600,000	922,000
Loan past due period before entering default status	30 days
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 1,987,000	1,095,000
Deposit Liabilities Reclassified as Loans Receivable	2,000,000		2,900,000
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans	17,400,000		24,700,000
Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans	6,300,000		200,000
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	838,000
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Related Allowance	0		0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Related Allowance	179,000		$ 309,000
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	60,000	37,000
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	$ 1,900,000	$ 1,100,000

Loans (Composition Of Loan Port

Loans (Composition Of Loan Portfolio By Class Of Loan) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		$ 70,127	$ 78,171	$ 70,426
Loan balance		5,313,641		5,271,857
Accrued interest receivable		18,628		18,822
Recorded Investment		5,328,090		5,286,830
Impaired Financing Receivable, Average Recorded Investment		67,950	78,669
Impaired Financing Receivable, Interest Income, Cash Basis Method		811	2,396
Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		2,041	6,888
Loan balance		112,015		135,343
Accrued interest receivable		338		398
Recorded Investment		112,353		135,741
Impaired Financing Receivable, Average Recorded Investment		2,096	6,814
Impaired Financing Receivable, Interest Income, Cash Basis Method		15	13
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		22,542	28,596
Impaired Financing Receivable, Average Recorded Investment		19,471	29,858
Impaired Financing Receivable, Interest Income, Cash Basis Method		220	238
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		48,193		48,699
Accrued interest receivable		110		106
Recorded Investment		48,303		48,805
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		5,026		4,903
Accrued interest receivable		14		17
Recorded Investment		5,040		4,920
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		22,803	24,619
Loan balance		396,663		406,687
Accrued interest receivable		924		940
Recorded Investment		397,587		407,627
Impaired Financing Receivable, Average Recorded Investment		23,081	24,897
Impaired Financing Receivable, Interest Income, Cash Basis Method		345	1,965
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		1,156,543		1,169,495
Accrued interest receivable		1,246		1,459
Recorded Investment		1,157,789		1,170,954
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		211,311		212,441
Accrued interest receivable		820		853
Recorded Investment		212,131		213,294
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		18,734		19,874
Accrued interest receivable		53		67
Recorded Investment		18,787		19,941
Loans Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Accrued interest receivable		14,449		14,973
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance	[1]	995,377		994,619
Accrued interest receivable	[1]	3,898		3,558
Recorded Investment	[1]	999,275		998,177
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		22,732	18,068
Loan balance	[1]	1,187,395		1,155,703
Accrued interest receivable	[1]	3,870		4,161
Recorded Investment	[1]	1,191,265		1,159,864
Impaired Financing Receivable, Average Recorded Investment		23,297	17,100
Impaired Financing Receivable, Interest Income, Cash Basis Method		231	$ 180
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		9
Loan balance		1,178,736		1,120,850
Accrued interest receivable		3,118		3,385
Recorded Investment		1,181,854		1,124,235
Impaired Financing Receivable, Average Recorded Investment		5
Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		3,648		3,243
Accrued interest receivable		58		29
Recorded Investment		$ 3,706		$ 3,272
[1]	Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.

Loans (Recorded Investment In N

Loans (Recorded Investment In Nonaccrual Restructured And Loans Past Due 90 Days Or More And Accruing) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	$ 84,294	$ 87,822
Accruing restructured loans	21,223	18,228
Loans past due 90 days or more and accruing	1,886	2,138
Total nonperforming loans	107,403	108,188
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	18,767	20,057
Accruing restructured loans	3,825	600
Loans past due 90 days or more and accruing	10	15
Total nonperforming loans	22,602	20,672
Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	1,649	1,833
Accruing restructured loans	392	393
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	2,041	2,226
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	0
Accruing restructured loans	103	104
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	103	104
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	58	61
Accruing restructured loans	92	95
Loans past due 90 days or more and accruing	0	12
Total nonperforming loans	150	168
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	22,715	23,013
Accruing restructured loans	88	89
Loans past due 90 days or more and accruing	0
Total nonperforming loans	22,803	23,102
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	17,632	18,313
Accruing restructured loans	9,983	9,612
Loans past due 90 days or more and accruing	804	887
Total nonperforming loans	28,419	28,812
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	1,683	1,783
Accruing restructured loans	849	673
Loans past due 90 days or more and accruing	26	25
Total nonperforming loans	2,558	2,481
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	577	644
Accruing restructured loans	630	609
Loans past due 90 days or more and accruing	0	60
Total nonperforming loans	1,207	1,313
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	18,474	19,169
Accruing restructured loans	4,258	5,305
Loans past due 90 days or more and accruing	0
Total nonperforming loans	22,732	24,474
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	2,739	2,949
Accruing restructured loans	1,003	748
Loans past due 90 days or more and accruing	1,046	1,139
Total nonperforming loans	$ 4,788	$ 4,836

Loans (Loans Individually And C

Loans (Loans Individually And Collectively Evaluated For Impairment) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 1,091	$ 548
Nonaccrual and accruing restructured loans	105,517	106,050
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	70,127	70,426
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	35,390	35,624
Partial Charge-Offs On Impaired Loans	23,731	24,943
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	22,592	20,657
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	22,542	20,624
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	50	33
Construction Real Estate Commercial [Domain]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	2,041	2,226
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	2,041	2,226
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	0	0
Construction Real Estate - Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	103	104
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	103	104
Construction Real Estate - Installment [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	150	156
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	150	156
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	22,803	23,102
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	22,803	23,102
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	0	0
Residential Real Estate - Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	27,615	27,925
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	27,615	27,925
Residential Real Estate - HELOC [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	2,532	2,456
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	2,532	2,456
Residential Real Estate - Installment [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	1,207	1,253
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	1,207	1,253
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	179	309
Nonaccrual and accruing restructured loans	22,732	24,474
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	22,732	24,474
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	0	0
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	9	0
Nonaccrual and accruing restructured loans	3,742	3,697
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	9
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	3,733	3,697
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Partial Charge-Offs On Impaired Loans	$ 17,400	$ 24,700

Loans (Loans Individually Evalu

Loans (Loans Individually Evaluated For Impairment By Class Of Loans) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	$ 93,831		$ 95,358
Recorded investment	70,127	$ 78,171	70,426
Allowance for loan losses allocated	1,091		548
Impaired Financing Receivable, Average Recorded Investment	67,950	78,669
Impaired Financing Receivable, Interest Income, Cash Basis Method	811	2,396
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	22,542	28,596
Impaired Financing Receivable, Average Recorded Investment	19,471	29,858
Impaired Financing Receivable, Interest Income, Cash Basis Method	220	238
Commercial Financial And Agricultural [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	37,260		41,075
Recorded investment	21,001		19,965
Allowance for loan losses allocated	0		0
Commercial Financial And Agricultural [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	6,419		810
Recorded investment	1,541		659
Allowance for loan losses allocated	596		152
Construction Real Estate Commercial [Domain]
Financing Receivable, Impaired [Line Items]
Recorded investment	2,041	6,888
Impaired Financing Receivable, Average Recorded Investment	2,096	6,814
Impaired Financing Receivable, Interest Income, Cash Basis Method	15	13
Construction Real Estate Commercial [Domain] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	1,499		3,662
Recorded investment	1,471		2,226
Allowance for loan losses allocated	0		0
Construction Real Estate Commercial [Domain] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	1,956
Recorded investment	570
Allowance for loan losses allocated	32
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	22,803	24,619
Impaired Financing Receivable, Average Recorded Investment	23,081	24,897
Impaired Financing Receivable, Interest Income, Cash Basis Method	345	1,965
Residential Real Estate - Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	22,924		24,409
Recorded investment	22,302		22,687
Allowance for loan losses allocated	0		0
Residential Real Estate - Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	516		427
Recorded investment	501		415
Allowance for loan losses allocated	275		87
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	22,732	18,068
Impaired Financing Receivable, Average Recorded Investment	23,297	17,100
Impaired Financing Receivable, Interest Income, Cash Basis Method	231	$ 180
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	22,553		23,961
Recorded investment	22,094		23,474
Allowance for loan losses allocated	0		0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	695		1,014
Recorded investment	638		1,000
Allowance for loan losses allocated	179		$ 309
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	9
Impaired Financing Receivable, Average Recorded Investment	5
Consumer [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	9
Recorded investment	9
Allowance for loan losses allocated	$ 9

Loans (Average Recorded Investm

Loans (Average Recorded Investment And Interest Income Recognized On Loans Individually Evaluated For Impairment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Recorded investment	$ 70,127	$ 78,171	$ 70,426
Average recorded investment	67,950	78,669
Interest income recognized	811	2,396
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	22,542	28,596
Average recorded investment	19,471	29,858
Interest income recognized	220	238
Construction Real Estate Commercial [Domain]
Financing Receivable, Impaired [Line Items]
Recorded investment	2,041	6,888
Average recorded investment	2,096	6,814
Interest income recognized	15	13
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	22,803	24,619
Average recorded investment	23,081	24,897
Interest income recognized	345	1,965
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	22,732	18,068
Average recorded investment	23,297	17,100
Interest income recognized	231	$ 180
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	9
Average recorded investment	$ 5

Loans (Aging Of Recorded Invest

Loans (Aging Of Recorded Investment In Past Due Loans) (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2017USD ($)contracts		Mar. 31, 2016USD ($)contracts	Dec. 31, 2016USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		83		84
Accruing loans past due 30-89 days		$ 17,185			$ 26,591
Past due nonaccrual loans and loans past due 90 days or more and accruing		19,395	[1]		24,050	[2]
Total loans past due		36,580			50,641
Total current		5,291,510			5,236,189
Recorded Investment		5,328,090			5,286,830
Loans past due 90 days or more and accruing		1,886			2,138
Impaired Financing Receivable, Recorded Investment, Nonaccrual loans which are current in regards to contractual P&I payments		66,800			65,900
Financing Receivable, Modifications, Recorded Investment, During Period		$ 8,085		$ 2,529
Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		0		0
Past due nonaccrual loans and loans past due 90 days or more and accruing		$ 24	[1]		541	[2]
Total loans past due		24			541
Total current		112,329			135,200
Recorded Investment		112,353			135,741
Loans past due 90 days or more and accruing		$ 0			0
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		6		7
Accruing loans past due 30-89 days		$ 541			371
Past due nonaccrual loans and loans past due 90 days or more and accruing		2,272	[1]		4,113	[2]
Total loans past due		2,813			4,484
Total current		996,462			993,693
Loans past due 90 days or more and accruing		10			15
Financing Receivable, Modifications, Recorded Investment, During Period		$ 4,098		$ 847
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		0		0
Accruing loans past due 30-89 days					559
Total loans past due					559
Total current		$ 48,303			48,246
Recorded Investment		48,303			48,805
Loans past due 90 days or more and accruing		$ 0			0
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		0		0
Accruing loans past due 30-89 days		$ 210			223
Past due nonaccrual loans and loans past due 90 days or more and accruing		49	[1]		64	[2]
Total loans past due		259			287
Total current		4,781			4,633
Recorded Investment		5,040			4,920
Loans past due 90 days or more and accruing		$ 0			12
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		3		2
Accruing loans past due 30-89 days		$ 170			330
Past due nonaccrual loans and loans past due 90 days or more and accruing		2,067	[1]		3,631	[2]
Total loans past due		2,237			3,961
Total current		395,350			403,666
Recorded Investment		397,587			407,627
Loans past due 90 days or more and accruing		0
Financing Receivable, Modifications, Recorded Investment, During Period		$ 2,140		$ 617
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		9		5
Accruing loans past due 30-89 days		$ 7,566			10,854
Past due nonaccrual loans and loans past due 90 days or more and accruing		9,391	[1]		9,769	[2]
Total loans past due		16,957			20,623
Total current		1,140,832			1,150,331
Recorded Investment		1,157,789			1,170,954
Loans past due 90 days or more and accruing		804			887
Financing Receivable, Modifications, Recorded Investment, During Period		$ 608		$ 316
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		3		6
Accruing loans past due 30-89 days		$ 632			970
Past due nonaccrual loans and loans past due 90 days or more and accruing		1,017	[1]		1,020	[2]
Total loans past due		1,649			1,990
Total current		210,482			211,304
Recorded Investment		212,131			213,294
Loans past due 90 days or more and accruing		26			25
Financing Receivable, Modifications, Recorded Investment, During Period		206		$ 186
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing loans past due 30-89 days		197			350
Past due nonaccrual loans and loans past due 90 days or more and accruing		178	[1]		319	[2]
Total loans past due		375			669
Total current		18,412			19,272
Recorded Investment		18,787			19,941
Loans past due 90 days or more and accruing		0			60
Financing Receivable, Modifications, Recorded Investment, During Period		34
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment	[3]	$ 999,275			998,177
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		4		0
Accruing loans past due 30-89 days		$ 135			355
Past due nonaccrual loans and loans past due 90 days or more and accruing		2,591	[1]		2,499	[2]
Total loans past due		2,726			2,854
Total current		1,188,539			1,157,010
Recorded Investment	[3]	1,191,265			1,159,864
Loans past due 90 days or more and accruing		0
Financing Receivable, Modifications, Recorded Investment, During Period		$ 379
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		57		64
Accruing loans past due 30-89 days		$ 7,734			12,579
Past due nonaccrual loans and loans past due 90 days or more and accruing		1,806	[1]		2,094	[2]
Total loans past due		9,540			14,673
Total current		1,172,314			1,109,562
Recorded Investment		1,181,854			1,124,235
Loans past due 90 days or more and accruing		1,046			1,139
Financing Receivable, Modifications, Recorded Investment, During Period		620		$ 563
Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing loans past due 30-89 days		0			0
Past due nonaccrual loans and loans past due 90 days or more and accruing		0	[1]		0	[2]
Total loans past due		0			0
Total current		3,706			3,272
Recorded Investment		$ 3,706			$ 3,272
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		1		0
Accruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		$ 3,585		$ 346
Accruing Financing Receivable Modifications [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		3,079		131
Accruing Financing Receivable Modifications [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		0		0
Accruing Financing Receivable Modifications [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		0		0
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		0		99
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		200		64
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		34
Accruing Financing Receivable Modifications [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		272		52
Nonaccruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		4,500		2,183
Nonaccruing Financing Receivable Modifications [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		1,019		716
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		2,140		617
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		608		217
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		6		122
Nonaccruing Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		379
Nonaccruing Financing Receivable Modifications [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		$ 348		$ 511
[1]	1) Includes $1.9 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans.(2) Includes $66.8 million of nonaccrual loans which are current in regards to contractual principal and interest payments
[2]	1) Includes $2.1 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans.(2) Includes $65.9 million of nonaccrual loans which are current in regards to contractual principal and interest payments.
[3]	Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.

Loans (Recorded Investment By L

Loans (Recorded Investment By Loan Grade) (Details) - USD ($) $ in Thousands		Mar. 31, 2017		Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		$ 5,328,090		$ 5,286,830
Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		112,353		135,741
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		397,587		407,627
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	[1]	1,191,265		1,159,864
Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		3,706		3,272
5 Rated [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		8,418		14,716
5 Rated [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		90		287
5 Rated [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		1,061		1,055
5 Rated [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		1,394	[2]	5,826	[3]
5 Rated [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		5,873	[2]	7,548	[3]
5 Rated [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		0		0
6 Rated [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		779		432
6 Rated [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		116		118
6 Rated [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		216		124
6 Rated [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment	[2]	179
6 Rated [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		268	[2]	190	[3]
6 Rated [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		0		0
Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		70,168		70,459
Impaired [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		2,041		2,226
Impaired [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		22,803		23,102
Impaired [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		22,592	[2]	20,657	[3]
Impaired [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		22,732	[2]	24,474	[3]
Impaired [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		0		0
Pass Rated [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		2,624,821		2,619,074
Pass Rated [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		110,106		133,110
Pass Rated [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		373,507		383,346
Pass Rated [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		975,110	[2]	971,694	[3]
Pass Rated [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		1,162,392	[2]	1,127,652	[3]
Pass Rated [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		3,706		3,272
Recorded Investment [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		2,704,186		2,704,681
Recorded Investment [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		112,353		135,741
Recorded Investment [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		397,587		407,627
Recorded Investment [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		999,275	[2]	998,177	[3]
Recorded Investment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		1,191,265	[2]	1,159,864	[3]
Recorded Investment [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		$ 3,706		$ 3,272
[1]	Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.
[2]	* Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.
[3]	* Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.

Loans (TDR Number Of Contracts

Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)contracts	Mar. 31, 2016USD ($)contracts
Financing Receivable, Recorded Investment [Line Items]
Additional Specific Reserves Related To Troubled Debt Restructuring	$ 280	$ 25
Troubled Debt Restructuring, Classification removed	$ 0	$ 806
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	52	55
Number of Contracts | contracts	83	84
Total Recorded Investment	$ 8,085	$ 2,529
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 1,987	$ 1,095
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	6	1
Number of Contracts | contracts	6	7
Total Recorded Investment	$ 4,098	$ 847
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 198	$ 1
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	3	1
Number of Contracts | contracts	3	2
Total Recorded Investment	$ 2,140	$ 617
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 49	$ 90
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	8	8
Number of Contracts | contracts	9	5
Total Recorded Investment	$ 608	$ 316
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 631	$ 516
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0
Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	$ 34
Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0
Number of Contracts | contracts	3	6
Total Recorded Investment	$ 206	$ 186
Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0
Number of Contracts | contracts	0	0
Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	29	44
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 268	$ 463
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	5	0
Number of Contracts | contracts	4	0
Total Recorded Investment	$ 379
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 838
Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	1	1
Number of Contracts | contracts	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 3	$ 25
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	57	64
Total Recorded Investment	$ 620	$ 563
Finance Leases Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	3,585	346
Accruing [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	0
Accruing [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	3,079	131
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	99
Accruing [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	0
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	34
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	200	64
Accruing [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	272	52
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	4,500	2,183
Nonaccrual [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	1,019	716
Nonaccrual [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	2,140	617
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	608	217
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	6	122
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	379
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	$ 348	$ 511

Loans (Recorded Investment In F

Loans (Recorded Investment In Financing Receivable Modified As TDR Within 12 Months) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)contracts	Mar. 31, 2016USD ($)contracts	Dec. 31, 2016USD ($)
Financing Receivable, Recorded Investment [Line Items]
Troubled Debt Restructuring, Classification removed	$ 0	$ 806
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	83	84
Number of Contracts | contracts	52	55
Recorded Investment	$ 1,987	$ 1,095
Financing Receivable, Modifications, Recorded Investment, During Period	8,085	$ 2,529
Troubled Debt Restructuring Included In Nonaccrual Loans	47,800		$ 46,900
Nonaccrual Trouble Debt Restructuring Current	$ 40,200		$ 38,000
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	0	0
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	6	7
Number of Contracts | contracts	6	1
Recorded Investment	$ 198	$ 1
Financing Receivable, Modifications, Recorded Investment, During Period	$ 4,098	$ 847
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	3	2
Number of Contracts | contracts	3	1
Recorded Investment	$ 49	$ 90
Financing Receivable, Modifications, Recorded Investment, During Period	$ 2,140	$ 617
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	9	5
Number of Contracts | contracts	8	8
Recorded Investment	$ 631	$ 516
Financing Receivable, Modifications, Recorded Investment, During Period	$ 608	$ 316
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	3	6
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Recorded Investment, During Period	$ 206	$ 186
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	0	0
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	$ 34
Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	0	0
Number of Contracts | contracts	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	57	64
Financing Receivable, Modifications, Recorded Investment, During Period	$ 620	$ 563
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	4	0
Number of Contracts | contracts	5	0
Recorded Investment	$ 838
Financing Receivable, Modifications, Recorded Investment, During Period	$ 379
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0
Recorded Investment	$ 0	$ 0
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0
Recorded Investment	$ 0	$ 0
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	1	0
Number of Contracts | contracts	1	1
Recorded Investment	$ 3	$ 25
Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	29	44
Recorded Investment	$ 268	$ 463
Finance Leases Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0
Recorded Investment	$ 0	$ 0
Accruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	3,585	346
Accruing Financing Receivable Modifications [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	0	0
Accruing Financing Receivable Modifications [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	3,079	131
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	0	99
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	200	64
Accruing Financing Receivable Modifications [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	0	0
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	34
Accruing Financing Receivable Modifications [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	272	52
Nonaccruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	4,500	2,183
Nonaccruing Financing Receivable Modifications [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	1,019	716
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	2,140	617
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	608	217
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	6	122
Nonaccruing Financing Receivable Modifications [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	348	$ 511
Nonaccruing Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	$ 379

Allowance For Loan Losses (Acti

Allowance For Loan Losses (Activity In The Allowance For Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Effect of Change in Method	$ 3,800
Financing Receivable, Allowance for Credit Losses, Write-downs	3,708	$ 3,401
Financing Receivable, Allowance for Credit Losses, Recovery	2,130	2,945
Financing Receivables Allowance For Credit Losses Net Charge Offs	1,578	456
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	50,624	56,494
Ending balance	49,922	56,948
Provision for Loan, Lease, and Other Losses	876	910
Commercial Financial And Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	339	274
Financing Receivable, Allowance for Credit Losses, Recovery	369	427
Financing Receivables Allowance For Credit Losses Net Charge Offs	(30)	(153)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	13,434	13,694
Ending balance	13,437	14,240
Provision for Loan, Lease, and Other Losses	(27)	393
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	112	1
Financing Receivable, Allowance for Credit Losses, Recovery	114	218
Financing Receivables Allowance For Credit Losses Net Charge Offs	(2)	(217)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	10,432	9,197
Ending balance	10,281	9,452
Provision for Loan, Lease, and Other Losses	(153)	38
Construction Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	27	0
Financing Receivable, Allowance for Credit Losses, Recovery	58	939
Financing Receivables Allowance For Credit Losses Net Charge Offs	(31)	(939)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,247	8,564
Ending balance	4,368	8,687
Provision for Loan, Lease, and Other Losses	(910)	(816)
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	480	747
Financing Receivable, Allowance for Credit Losses, Recovery	291	471
Financing Receivables Allowance For Credit Losses Net Charge Offs	189	276
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	10,958	13,514
Ending balance	10,745	13,388
Provision for Loan, Lease, and Other Losses	(24)	150
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	2,750	2,379
Financing Receivable, Allowance for Credit Losses, Recovery	1,298	890
Financing Receivables Allowance For Credit Losses Net Charge Offs	1,452	1,489
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	10,553	11,524
Ending balance	11,091	11,180
Provision for Loan, Lease, and Other Losses	1,990	1,145
Leases [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	0	0
Financing Receivable, Allowance for Credit Losses, Recovery	0	0
Financing Receivables Allowance For Credit Losses Net Charge Offs	0	0
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0	1
Ending balance	0	1
Provision for Loan, Lease, and Other Losses	$ 0	$ 0

Allowance For Loan Losses (Comp

Allowance For Loan Losses (Composition Of The Allowance For Loan Losses) (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		$ 1,091	$ 548
Allowance for loan losses collectively evaluated for impairment		48,831	50,076
Total ending allowance balance		49,922	50,624
Loans individually evaluated for impairment		70,099	70,415
Loans collectively evaluated for impairment		5,243,542	5,201,442
Total ending loan balance, net of accrued interest receivable		$ 5,313,641	$ 5,271,857
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		1.55637%	0.77824%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.93126%	0.96273%
Total ending allowance for loan losses balance as a percentage of loan balance		0.93951%	0.96027%
Recorded investment		$ 70,127	$ 70,426
Recorded investment collectively evaluated for impairment		5,257,963	5,216,404
Recorded Investment		5,328,090	5,286,830
Commercial Financial And Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		596	152
Allowance for loan losses collectively evaluated for impairment		12,841	13,282
Total ending allowance balance		13,437	13,434
Loans individually evaluated for impairment		22,541	20,622
Loans collectively evaluated for impairment		972,836	973,997
Total ending loan balance, net of accrued interest receivable	[1]	$ 995,377	$ 994,619
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		2.64407%	0.73708%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		1.31996%	1.36366%
Total ending allowance for loan losses balance as a percentage of loan balance		1.34994%	1.35067%
Recorded investment		$ 22,542	$ 20,624
Recorded investment collectively evaluated for impairment		976,733	977,553
Recorded Investment	[1]	999,275	998,177
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		179	309
Allowance for loan losses collectively evaluated for impairment		10,102	10,123
Total ending allowance balance		10,281	10,432
Loans individually evaluated for impairment		22,708	24,465
Loans collectively evaluated for impairment		1,164,687	1,131,238
Total ending loan balance, net of accrued interest receivable	[1]	$ 1,187,395	$ 1,155,703
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		0.78827%	1.26303%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.86736%	0.89486%
Total ending allowance for loan losses balance as a percentage of loan balance		0.86584%	0.90265%
Recorded investment		$ 22,732	$ 24,474
Recorded investment collectively evaluated for impairment		1,168,533	1,135,390
Recorded Investment	[1]	1,191,265	1,159,864
Construction Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		32	0
Allowance for loan losses collectively evaluated for impairment		4,336	5,247
Total ending allowance balance		4,368	5,247
Loans individually evaluated for impairment		2,039	2,226
Loans collectively evaluated for impairment		163,195	186,719
Total ending loan balance, net of accrued interest receivable		$ 165,234	$ 188,945
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		1.5694%	0.00%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		2.65694%	2.81011%
Total ending allowance for loan losses balance as a percentage of loan balance		2.64352%	2.777%
Recorded investment		$ 2,041	$ 2,226
Recorded investment collectively evaluated for impairment		163,655	187,240
Recorded Investment		165,696	189,466
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		275	87
Allowance for loan losses collectively evaluated for impairment		10,470	10,871
Total ending allowance balance		10,745	10,958
Loans individually evaluated for impairment		22,802	23,102
Loans collectively evaluated for impairment		1,760,449	1,785,395
Total ending loan balance, net of accrued interest receivable		$ 1,783,251	$ 1,808,497
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		1.20603%	0.37659%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.59473%	0.60888%
Total ending allowance for loan losses balance as a percentage of loan balance		0.60255%	0.60592%
Recorded investment		$ 22,803	$ 23,102
Recorded investment collectively evaluated for impairment		1,763,491	1,788,714
Recorded Investment		1,786,294	1,811,816
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		9	0
Allowance for loan losses collectively evaluated for impairment		11,082	10,553
Total ending allowance balance		11,091	10,553
Loans individually evaluated for impairment		9	0
Loans collectively evaluated for impairment		1,178,727	1,120,850
Total ending loan balance, net of accrued interest receivable		$ 1,178,736	$ 1,120,850
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		0.00%	0.00%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.94017%	0.94152%
Total ending allowance for loan losses balance as a percentage of loan balance		0.94092%	0.94152%
Recorded investment		$ 9	$ 0
Recorded investment collectively evaluated for impairment		1,181,845	1,124,235
Recorded Investment		1,181,854	1,124,235
Leases [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		0	0
Allowance for loan losses collectively evaluated for impairment		0	0
Total ending allowance balance		0	0
Loans individually evaluated for impairment		0	0
Loans collectively evaluated for impairment		3,648	3,243
Total ending loan balance, net of accrued interest receivable		$ 3,648	$ 3,243
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		0.00%	0.00%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.00%	0.00%
Total ending allowance for loan losses balance as a percentage of loan balance		0.00%	0.00%
Recorded investment		$ 0	$ 0
Recorded investment collectively evaluated for impairment		3,706	3,272
Recorded Investment		$ 3,706	$ 3,272
[1]	Included within each of commercial, financial and agricultural loans and commercial real estate loans is an immaterial amount of consumer loans that are not broken out by class.

Other Real Estate Owned (Detail

Other Real Estate Owned (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Assets Repossessed or Foreclosed, or loans in process of foreclosure [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 13,693	$ 13,926
Commercial Real Estate [Member]
Schedule of Assets Repossessed or Foreclosed, or loans in process of foreclosure [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	7,642	7,642
Construction Real Estate [Member]
Schedule of Assets Repossessed or Foreclosed, or loans in process of foreclosure [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	4,633	4,624
Residential Real Estate [Member]
Schedule of Assets Repossessed or Foreclosed, or loans in process of foreclosure [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	1,418	1,660
Mortgage Loans in Process of Foreclosure, Amount	$ 3,456	$ 3,250

Earnings Per Common Share (Narr

Earnings Per Common Share (Narrative) (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Treasury Stock, Shares, Acquired	50,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	119,587		85,425
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	120,710	75,695
Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	45,788,000	41,550,000
Treasury Stock, Shares, Acquired	50,000	0

Earnings Per Common Share (Summ

Earnings Per Common Share (Summary Of Computation Of Basic And Diluted Earnings Per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Income available to common shareholders	$ 20,267	$ 18,686
Denominator for basic earnings per share (weighted average common shares outstanding)	15,312,059	15,330,813
Effect of dilutive options and warrants	120,710	75,695
Denominator for diluted earnings per share (weighted average common shares outstanding adjusted for the effect of dilutive options and warrants)	15,432,769	15,406,508
Basic earnings per common share	$ 1.32	$ 1.22
Diluted earnings per common share	$ 1.31	$ 1.21

Segment Information (Schedule O

Segment Information (Schedule Of Operating Results By Segment) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)segments	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments | segments	3
Net interest income	$ 58,952	$ 59,819
Provision for (recovery of) loan losses	876	910
Other income and security gains	17,507	17,389
Total other expense	47,462	49,899
Income (loss) before income taxes	28,121	26,399
Income Tax Expense (Benefit)	7,854	7,713
Net Income	20,267	18,686
Assets	7,744,690	7,428,185	$ 7,467,586
PNB [Member]
Segment Reporting Information [Line Items]
Net interest income	57,480	57,155
Provision for (recovery of) loan losses	720	1,533
Other income and security gains	17,711	17,223
Total other expense	43,803	41,360
Income (loss) before income taxes	30,668	31,485
Income Tax Expense (Benefit)	9,182	9,741
Net Income	21,486	21,744
Assets	7,667,288	7,347,378
GFSC [Member]
Segment Reporting Information [Line Items]
Net interest income	1,478	1,504
Provision for (recovery of) loan losses	437	527
Total other expense	736	3,798
Income (loss) before income taxes	305	(2,821)
Income Tax Expense (Benefit)	107	(985)
Net Income	198	(1,836)
Assets	34,574	34,637
SEPH [Member]
Segment Reporting Information [Line Items]
Net interest income	201	1,161
Provision for (recovery of) loan losses	(281)	(1,150)
Other income and security gains		34
Total other expense	776	1,404
Income (loss) before income taxes	(294)	941
Income Tax Expense (Benefit)	(103)	329
Net Income	(191)	612
Assets	24,727	34,592
All Other [Member]
Segment Reporting Information [Line Items]
Net interest income	(207)	(1)
Other income and security gains	(204)	132
Total other expense	2,147	3,337
Income (loss) before income taxes	(2,558)	(3,206)
Income Tax Expense (Benefit)	(1,332)	(1,372)
Net Income	(1,226)	(1,834)
Assets	$ 18,101	$ 11,578

Mortgage Loans Held For Sale (D

Mortgage Loans Held For Sale (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Mortgage Loans Held for Sale [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	$ 6,722	$ 10,413
Disposal Group, Including Discontinued Operation, Mortgage Loans	6,600	10,300
Gain (Loss) on Sale of Mortgage Loans	$ 86	$ 131

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Schedule of Investments [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Tax Equivalent Interest Adjustment	$ 786,000
Investment Securities average remaining life	4 years 5 months 5 days
Other than Temporary Impairment Losses, Investments	$ 0	$ 0
Available-for-sale Securities, Gross Realized Gains	$ 0	$ 0
Asset backed securities mortgage portfolio, term	15 years
Available-for-sale Securities Pledged as Collateral	$ 1,062,000,000		$ 937,000,000
U.S. Treasury And Sponsored Entities Callable Notes [Member]
Schedule of Investments [Line Items]
Available for Sale expected to be called	0
Available-for-sale securities	$ 268,400,000
U.S. Treasury And Sponsored Entities Callable Notes [Member] | Minimum [Member]
Schedule of Investments [Line Items]
Available for Sale Securities, Debt Maturities, Term	7 months
U.S. Treasury And Sponsored Entities Callable Notes [Member] | Maximum [Member]
Schedule of Investments [Line Items]
Available for Sale Securities, Debt Maturities, Term	3 years

Investment Securities (Schedule

Investment Securities (Schedule Of Investment Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Investments [Line Items]
Securities Available-for-Sale, Amortized Cost	$ 1,222,447	$ 1,262,761
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	8,322	7,687
Securities Available-for-Sale, Gross Unrealized Holding Losses	11,372	12,309
Securities Available-for-Sale, Total Fair value	1,219,397	1,258,139
Securities Held-to-Maturity, Amortized Cost	284,460	259,833
Securities Held-to-Maturity, Gross Unrecognized Holding Gains	2,717	2,074
Securities Held-to-Maturity, Gross Unrecognized Holding Losses	4,022	5,235
Securities Held-to-Maturity, Estimated Fair Value	283,155	256,672
Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Amortized Cost	270,000	270,000
Securities Available-for-Sale, Gross Unrealized Holding Losses	1,579	2,467
Securities Available-for-Sale, Total Fair value	268,421	267,533
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Amortized Cost	951,328	991,642
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	6,044	5,372
Securities Available-for-Sale, Gross Unrealized Holding Losses	9,793	9,842
Securities Available-for-Sale, Total Fair value	947,579	987,172
Securities Held-to-Maturity, Amortized Cost	65,221	71,211
Securities Held-to-Maturity, Gross Unrecognized Holding Gains	1,019	1,097
Securities Held-to-Maturity, Gross Unrecognized Holding Losses	77	87
Securities Held-to-Maturity, Estimated Fair Value	66,163	72,221
Other Equity Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Amortized Cost	1,119	1,119
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	2,278	2,315
Securities Available-for-Sale, Total Fair value	3,397	3,434
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Securities Held-to-Maturity, Amortized Cost	219,239	188,622
Securities Held-to-Maturity, Gross Unrecognized Holding Gains	1,698	977
Securities Held-to-Maturity, Gross Unrecognized Holding Losses	3,945	5,148
Securities Held-to-Maturity, Estimated Fair Value	$ 216,992	$ 184,451

Investment Securities (Schedu62

Investment Securities (Schedule Of Unrealized Loss On Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Investments [Line Items]
Securities Available-for-Sale, Less than 12 months, Fair value	$ 824,971	$ 860,016
Securities Available-for-Sale, Less than 12 months, Unrealized losses	10,963	11,778
Securities Available-for-Sale, 12 months or longer, Fair value	46,178	47,163
Securities Available-for-Sale, 12 months or longer, Unrealized losses	409	531
Securities Available-for-Sale, Fair value, Total	871,149	907,179
Securities Available-for-Sale, Unrealized losses, Total	11,372	12,309
Securities Held-to-Maturity, Less than 12 months, Fair value	118,439	134,909
Securities Held-to-Maturity, Less than 12 months, Unrealized losses	3,945	5,148
Securities Held-to-Maturity, 12 months or longer, Fair value	7,509	7,564
Securities Held-to-Maturity, 12 months or longer, Unrealized losses	77	87
Securities Held-to-Maturity, Fair value, Total	125,948	142,473
Securities Held-to-Maturity, Unrealized losses, Total	4,022	5,235
Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Less than 12 months, Fair value	248,525	247,695
Securities Available-for-Sale, Less than 12 months, Unrealized losses	1,475	2,305
Securities Available-for-Sale, 12 months or longer, Fair value	19,896	19,838
Securities Available-for-Sale, 12 months or longer, Unrealized losses	104	162
Securities Available-for-Sale, Fair value, Total	268,421	267,533
Securities Available-for-Sale, Unrealized losses, Total	1,579	2,467
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Less than 12 months, Fair value	576,446	612,321
Securities Available-for-Sale, Less than 12 months, Unrealized losses	9,488	9,473
Securities Available-for-Sale, 12 months or longer, Fair value	26,282	27,325
Securities Available-for-Sale, 12 months or longer, Unrealized losses	305	369
Securities Available-for-Sale, Fair value, Total	602,728	639,646
Securities Available-for-Sale, Unrealized losses, Total	9,793	9,842
Securities Held-to-Maturity, 12 months or longer, Fair value	7,509	7,564
Securities Held-to-Maturity, 12 months or longer, Unrealized losses	77	87
Securities Held-to-Maturity, Fair value, Total	7,509	7,564
Securities Held-to-Maturity, Unrealized losses, Total	77	87
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Securities Held-to-Maturity, Less than 12 months, Fair value	118,439	134,909
Securities Held-to-Maturity, Less than 12 months, Unrealized losses	3,945	5,148
Securities Held-to-Maturity, 12 months or longer, Fair value	0
Securities Held-to-Maturity, 12 months or longer, Unrealized losses	0
Securities Held-to-Maturity, Fair value, Total	118,439	134,909
Securities Held-to-Maturity, Unrealized losses, Total	$ 3,945	$ 5,148

Investment Securities (Amortize

Investment Securities (Amortized Cost And Estimated Fair Value Of Investments In Debt Securities By Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Investments [Line Items]
Securities Available-for-Sale, Total Fair value	$ 1,219,397	$ 1,258,139
Securities Held-to-Maturity, Amortized Cost	284,460	259,833
Securities held-to-maturity, fair value	283,155	256,672
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	219,239
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	216,992
Securities Held-to-Maturity, Amortized Cost	219,239	188,622
Securities held-to-maturity, fair value	$ 216,992	184,451
Held to Maturity Securities weighted avg yield	4.52%
Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 50,000
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	$ 49,927
Available for Sale Securities Debt Maturities next twelve months Weighted Avg Yield	0.96%
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	$ 220,000
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	$ 218,494
Available for Sale Securities Debt Maturities two through five Weighted Avg Yield	1.24%
Securities Available-for-Sale, Total, Amortized cost	$ 270,000
Securities Available-for-Sale, Total Fair value	$ 268,421	267,533
Available for Sale Securities Weighted Avg Yield	1.18%
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Total, Amortized cost	$ 951,328
Securities Available-for-Sale, Total Fair value	$ 947,579	987,172
Available for Sale Securities Weighted Avg Yield	2.10%
Securities Held-to-Maturity, Amortized Cost	$ 65,221	71,211
Securities held-to-maturity, fair value	$ 66,163	$ 72,221
Held to Maturity Securities weighted avg yield	3.28%

Other Investment Securities (Sc

Other Investment Securities (Schedule Of Other Investment Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Investments [Line Items]
Federal Home Loan Bank Stock	$ 50,086	$ 50,086
Federal Reserve Bank Stock	8,225	8,225
Equity Method Investments	3,500	3,500
Other investment securities	$ 61,811	$ 61,811

Share Based Compensation (Detai

Share Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 7,891
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	119,587		85,425
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	9,674
Shares Paid for Tax Withholding for Share Based Compensation	3,293
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings	6,381
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	150
Allocated Share-based Compensation Expense	$ 826	$ 468
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Period Increase (Decrease)	(1,802)
Expense to be paid next twelve months [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 2,247
Expense to be paid Year Two [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	2,641
Expense to be paid Year Three [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	1,964
Expense to be paid Year Four [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	890
Expense to be paid Year Five [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 149
2013 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	600,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	429,889
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	45,788
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	45,788	41,550

Pension Plan (Components Of Net

Pension Plan (Components Of Net Periodic Benefit Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 1,317	$ 1,264
Interest cost	1,271	1,217
Expected return on plan assets	(2,863)	(2,737)
Amortization of prior service cost	0	0
Recognized net actuarial loss	144	193
Benefit expense	(131)	(63)
Pension plan contributions	$ 0	$ 0

Loan Servicing (Narrative) (Det

Loan Servicing (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Transfers and Servicing of Financial Assets [Abstract]
Serviced sold mortgage loans	$ 1,330,000	$ 1,270,000	$ 1,330,000
Serviced sold mortgage loans with recourse	3,600	4,900	4,100
Mortgage Loans Sold with Recourse, Reserve	287		$ 266
Servicing fees included in other service income	$ 900	$ 800

Loan Servicing (Activity For MS

Loan Servicing (Activity For MSRs And Related Valuation Allowance) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Servicing Asset at Amortized Value, Balance [Roll Forward]
Carrying amount, net, beginning of period	$ 9,266,000	$ 9,008,000
Additions	354,000	316,000
Amortization	(358,000)	(375,000)
Changes in valuation inputs & assumptions	59,000	0
Carrying amount, net, end of period	9,321,000	8,949,000
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Valuation allowance, beginning of period	735,000	542,000
Changes in valuation allowance	(59,000)	0
Valuation allowance, end of period	$ 676,000	$ 542,000

Fair Value (Narrative) (Details

Fair Value (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 6,722,000		$ 10,413,000
Impaired Financing Receivable, Carrying Value	$ 69,036,000		69,878,000
Discount percentage applied to real estate appraised values	15.00%
Discount percentage applied to lot development appraised values	6.00%
Partial Charge-Offs On Impaired Loans	$ 23,731,000		24,943,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,091,000		548,000
Impaired Financing Receivable, Related Allowance	1,091,000		548,000
Impaired Loan Fair Value	4,319,000		5,983,000
Partial Charge-Offs On Impaired Loans carried at Fair Value	2,593,000		3,681,000
Book Value Of Impaired Loans Carried At Fair Value	4,805,000		6,379,000
Impaired Financing Receivable, carried at fair value, related expense	300,000	$ 600,000
MSR recorded at lower of cost or fair value	9,321,000	8,949,000	9,266,000	$ 9,008,000
Mortgage Servicing Rights Fair Value	6,900,000		6,800,000
Valuation allowance of MSR	676,000	542,000	735,000	$ 542,000
MSRs recorded at cost	2,400,000		2,500,000
Changes due to fair value adjustments	(59,000)	0
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 13,693,000		13,926,000
Percent of OREO held at fair value	49.86489%
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Fair Value	$ 6,800,000		6,897,000
OREO valuation adjustments	73,000	$ 118,000
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	486,000		396,000
Financing Receivable, not collateral dependent [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	605,000		152,000
Commercial Real Estate Portfolio Segment [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	179,000		309,000
Residential Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 1,418,000		1,660,000
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Loan Fair Value			3,057,000
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Loan Fair Value			$ 2,385,000
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	90.00%		90.00%
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	68.40%		68.40%
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	110.00%		110.00%
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	79.70%		79.70%
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	21.30%		20.20%
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	26.50%		26.50%
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	16.50%		17.00%
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	35.00%		30.60%
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	0.00%		0.00%
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	0.00%		0.00%
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	0.30%		0.30%
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments	0.60%		3.20%
Income Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	10.60%		10.60%
Income Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	14.00%		14.00%
Income Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	10.50%		10.00%
Income Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	10.00%		10.10%
Income Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	13.10%		13.10%
Income Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	10.50%		10.00%
Income Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	9.00%		9.00%
Income Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	13.00%		13.00%
Income Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate	10.50%		10.00%
Cost Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Accumulated Depreciation	90.10%		18.00%
Cost Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Accumulated Depreciation	60.50%		17.80%
Cost Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Accumulated Depreciation	17.00%		17.00%

Fair Value (Assets And Liabilit

Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 391,772	$ 146,466
Mortgage loans held for sale	6,722	10,413
Investment securities	1,502,552	1,514,811
Loans Held-for-sale, Fair Value Disclosure	6,722	10,413
Impaired Loan Fair Value	4,319	5,983
Other Assets, Fair Value Disclosure	5,185,883	5,161,919
Loans Receivable, Fair Value Disclosure	5,197,158	5,178,439
Noninterest Bearing Deposit Liabilities Fair Value	1,548,363	1,523,417
Interest bearing transactions accounts	1,310,575	1,174,448
Savings accounts	1,928,507	1,704,920
Time deposits	1,133,360	1,122,598
Other Liabilities, Fair Value Disclosure	2,706	1,301
Deposits, Fair Value Disclosure	5,923,511	5,526,684
Short Term Borrowings Fair Value	219,863	394,795
Long-term debt	760,798	712,958
Subordinated Debt Obligations, Fair Value Disclosure	43,786	40,903
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	391,772	146,466
Mortgage IRLCs	0	0
Investment securities	2,621	2,644
Noninterest Bearing Deposit Liabilities Fair Value	1,548,363	1,523,417
Interest bearing transactions accounts	1,310,575	1,174,448
Savings accounts	1,928,507	1,704,920
Other Liabilities, Fair Value Disclosure	2,706	1,301
Deposits, Fair Value Disclosure	4,790,151	4,404,086
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	234	124
Investment securities	1,499,155	1,511,377
Loans Held-for-sale, Fair Value Disclosure	6,722	10,413
Loans Receivable, Fair Value Disclosure	6,956	10,537
Time deposits	1,133,360	1,122,598
Deposits, Fair Value Disclosure	1,133,360	1,122,598
Short Term Borrowings Fair Value	219,863	394,795
Long-term debt	760,798	712,958
Subordinated Debt Obligations, Fair Value Disclosure	43,786	40,903
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	0	0
Investment securities	776	790
Impaired Loan Fair Value	4,319	5,983
Other Assets, Fair Value Disclosure	5,185,883	5,161,919
Loans Receivable, Fair Value Disclosure	5,190,202	5,167,902
Fair Value Swap [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	226	226
Fair Value Swap [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	226	226
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	6,722	10,413
Mortgage IRLCs	234	124
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	6,722	10,413
Mortgage IRLCs	234	124
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	268,421	267,533
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	268,421	267,533
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	947,579	987,172
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	947,579	987,172
Fair Value, Measurements, Recurring [Member] | Other Equity Securities [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	3,397	3,434
Fair Value, Measurements, Recurring [Member] | Other Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	2,621	2,644
Fair Value, Measurements, Recurring [Member] | Other Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	776	790
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	226	226
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	226	226
Available-for-sale Securities [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued interest receivable	4,179	3,849
Available-for-sale Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued interest receivable	4,179	3,849
Loans Receivable [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued interest receivable	14,449	14,973
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued interest receivable	14,449	14,973
Deposits [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	901	900
Deposits [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	46	82
Deposits [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	855	818
Borrowings [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	1,288	1,251
Borrowings [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure		1
Borrowings [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	$ 1,288	$ 1,250

Fair Value (Reconciliation Of L

Fair Value (Reconciliation Of Level 3 Input For Financial Instruments Measured On Recurring Basis) (Details) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Other Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	$ 790	$ 769
Included in other comprehensive income	(14)	44
Balance, ending	776	813
Fair Value Swap [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, Beginning of Period	(226)	(226)
Included in other comprehensive income	0	0
Balance, End of Period	$ (226)	$ (226)

Fair Value (Fair Value Of Finan

Fair Value (Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	$ 391,772	$ 146,466
Investment securities	1,502,552	1,514,811
Federal Home Loan Bank Stock	50,086	50,086
Federal Reserve Bank Stock	8,225	8,225
Loans Held-for-sale, Fair Value Disclosure	6,722	10,413
Impaired Loan Fair Value	4,319	5,983
Other loans	5,185,883	5,161,919
Loans receivable, net	5,197,158	5,178,439
Noninterest bearing checking accounts	1,548,363	1,523,417
Interest bearing transactions accounts	1,310,575	1,174,448
Savings accounts	1,928,507	1,704,920
Time deposits	1,133,360	1,122,598
Other	2,706	1,301
Total deposits	5,923,511	5,526,684
Short-term borrowings	219,863	394,795
Long-term debt	760,798	712,958
Subordinated debentures/notes	43,786	40,903
Fair Value Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	226	226
Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	4,179	3,849
Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	14,449	14,973
Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	901	900
Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,288	1,251
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	391,772	146,466
Investment securities	1,503,857	1,517,972
Loans Held-for-sale, Fair Value Disclosure	6,722	10,413
Derivative Assets	234	124
Impaired Loan Fair Value	4,319	5,983
Other loans	5,252,444	5,204,713
Loans receivable, net	5,263,719	5,221,233
Noninterest bearing checking accounts	1,548,363	1,523,417
Interest bearing transactions accounts	1,310,575	1,174,448
Savings accounts	1,928,507	1,704,920
Time deposits	1,130,409	1,117,870
Other	2,706	1,301
Total deposits	5,920,560	5,521,956
Short-term borrowings	219,863	394,795
Long-term debt	745,840	694,281
Subordinated debentures/notes	45,000	45,000
Reported Value Measurement [Member] | Fair Value Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	226	226
Reported Value Measurement [Member] | Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	4,179	3,849
Reported Value Measurement [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	14,449	14,973
Reported Value Measurement [Member] | Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	901	900
Reported Value Measurement [Member] | Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,288	1,251
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	$ 234	124
Impaired Loan Fair Value		$ 5,983

Fair Value Qualitative informat

Fair Value Qualitative information about Level 3 fair value measurements (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	$ 5,197,158	$ 5,178,439
Impaired Loan Fair Value	4,319	5,983
Other Assets, Fair Value Disclosure	5,185,883	5,161,919
Loans Held-for-sale, Fair Value Disclosure	6,722	10,413
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	5,190,202	5,167,902
Impaired Loan Fair Value	4,319	5,983
Other Assets, Fair Value Disclosure	5,185,883	5,161,919
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	4,319	5,983
Other Assets, Fair Value Disclosure	6,828	6,897
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	4,319	5,983
Other Assets, Fair Value Disclosure	6,828	6,897
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	3,331	3,322
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	3,331	3,322
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 3,331	$ 3,322
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Real Estate [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.00%	0.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Real Estate [Member] | Minimum [Member] | Bulk Sale Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	15.00%	15.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Real Estate [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	90.00%	90.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Real Estate [Member] | Maximum [Member] | Bulk Sale Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	15.00%	15.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Real Estate [Member] | Weighted Average [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	24.70%	24.70%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Real Estate [Member] | Weighted Average [Member] | Bulk Sale Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	15.00%	15.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	$ 2,647	$ 3,057
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	$ 2,647	3,057
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired Loan Fair Value		$ 3,057
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.00%	0.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	9.00%	9.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Minimum [Member] | Cost Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Accumulated Depreciation	17.00%	17.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	90.00%	90.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Maximum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	10.60%	10.60%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Maximum [Member] | Cost Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Accumulated Depreciation	90.10%	18.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Weighted Average [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	21.30%	20.20%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Weighted Average [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	10.00%	10.10%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans Receivable [Member] | Weighted Average [Member] | Cost Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Accumulated Depreciation	60.50%	17.80%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 2,644	$ 2,644
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.00%	0.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	13.00%	13.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	68.40%	68.40%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] | Maximum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	14.00%	14.00%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] | Weighted Average [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	26.50%	26.50%
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] | Weighted Average [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	13.10%	13.10%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate - Remaining Commercial [Member] | Loans Receivable [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired Loan Fair Value		$ 541
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate - Remaining Commercial [Member] | Loans Receivable [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.00%	0.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate - Remaining Commercial [Member] | Loans Receivable [Member] | Minimum [Member] | Bulk Sale Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	10.00%	10.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate - Remaining Commercial [Member] | Loans Receivable [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	4.80%	11.10%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate - Remaining Commercial [Member] | Loans Receivable [Member] | Maximum [Member] | Bulk Sale Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	10.00%	10.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate - Remaining Commercial [Member] | Loans Receivable [Member] | Weighted Average [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.70%	1.60%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate - Remaining Commercial [Member] | Loans Receivable [Member] | Weighted Average [Member] | Bulk Sale Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	10.00%	10.00%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 853	$ 931
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 853	931
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired Loan Fair Value		$ 2,385
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.30%	0.30%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	10.50%	10.00%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	110.00%	110.00%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Maximum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	10.50%	10.00%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Weighted Average [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	16.50%	17.00%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Weighted Average [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	10.50%	10.00%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 853	$ 931
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Real Estate [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.60%	3.20%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Real Estate [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	79.70%	79.70%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Real Estate [Member] | Weighted Average [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	35.00%	30.60%
Construction Real Estate - Remaining Commercial [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	$ 561	$ 541
Construction Real Estate - Remaining Commercial [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	561	541
Fair Value [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired Loan Fair Value		$ 5,983
Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	2,647
Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	1,111
Fair Value [Member] | Construction Real Estate - Remaining Commercial [Member] | Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	$ 561

Fair Value Fair Value (Assets a

Fair Value Fair Value (Assets and liabilities measured at fair value on a nonrecurring basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 6,722	$ 10,413
Loans Receivable, Fair Value Disclosure	5,197,158	5,178,439
Other Assets, Fair Value Disclosure	5,185,883	5,161,919
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	6,722	10,413
Loans Receivable, Fair Value Disclosure	6,956	10,537
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	5,190,202	5,167,902
Other Assets, Fair Value Disclosure	5,185,883	5,161,919
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	4,319	5,983
Servicing Asset at Fair Value, Amount	6,892	6,769
Other Assets, Fair Value Disclosure	6,828	6,897
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing Asset at Fair Value, Amount	6,892	6,769
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	4,319	5,983
Other Assets, Fair Value Disclosure	6,828	6,897
Commercial Real Estate Portfolio Segment [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	2,647	3,057
Commercial Real Estate Portfolio Segment [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	2,647	3,057
Residential Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Assets, Fair Value Disclosure	853	931
Residential Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Assets, Fair Value Disclosure	853	931
Construction Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Assets, Fair Value Disclosure	3,331	3,322
Construction Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Assets, Fair Value Disclosure	3,331	3,322
Commercial Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Assets, Fair Value Disclosure	2,644	2,644
Commercial Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Assets, Fair Value Disclosure	2,644	2,644
Residential Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	1,111	2,385
Residential Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	1,111	2,385
Construction Real Estate - Remaining Commercial [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	561	541
Construction Real Estate - Remaining Commercial [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	561	541
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	6,722	10,413
Loans Receivable, Fair Value Disclosure	5,263,719	5,221,233
Other Assets, Fair Value Disclosure	5,252,444	$ 5,204,713
Fair Value [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	2,647
Fair Value [Member] | Residential Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	1,111
Fair Value [Member] | Construction Real Estate - Remaining Commercial [Member] | Construction Real Estate [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	$ 561

Fair Value Fair Value (Impaired

Fair Value Fair Value (Impaired Financing Receivables Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Schedule of Impaired Financing Receivables Additional Information [Line Items]
Book Value Of Impaired Loans Carried At Fair Value	$ 4,805	$ 6,379
Partial Charge-Offs On Impaired Loans carried at Fair Value	2,593	3,681
Impaired Financing Receivable, Related Allowance	1,091	548
impaired Financing Receivable, loans not held at Fair Value, Carrying Amount	64,717	63,895
Impaired Financing Receivable, Recorded Investment	70,127	70,426	$ 78,171
Impaired Loan Fair Value	4,319	5,983
Impaired Financing Receivable, loans not held at Fair Value, Recorded Investment	65,322	64,047
Partial Charge-offs on Impaired Loans carried at Cost	21,138	21,262
Impaired Financing Receivable, Carrying Value	69,036	69,878
Partial Charge-Offs On Impaired Loans	23,731	24,943
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,091	548
Financing Receivable, not collateral dependent [Domain]
Schedule of Impaired Financing Receivables Additional Information [Line Items]
Impaired Financing Receivable, Related Allowance	605	152
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain]
Schedule of Impaired Financing Receivables Additional Information [Line Items]
Impaired Financing Receivable, Related Allowance	$ 486	$ 396

Other Comprehensive Income (L76

Other Comprehensive Income (Loss) (Component Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income before reclassifications	$ 1,022	$ 11,680
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0	0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, before Tax	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	1,022	11,680
Other comprehensive income (loss)	1,022	11,680
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	1,022	11,680
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax		0
Changes in pension plan assets and benefit obligations, Net-of-tax amount	(14,740)	(15,351)	$ 14,740	$ 15,351
Unrealized gains on available-for-sale securities, Net-of-tax amount	(1,983)	11,388	(3,005)	(292)
Total accumulated other comprehensive income (loss), Net-of-tax amount	(16,723)	$ (3,963)	$ (17,745)	$ (15,643)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, before Tax	$ 0

Investment in Qualified Affor77

Investment in Qualified Affordable Housing (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Affordable housing tax credit investments	$ 51,083		$ 52,947
Amortization Method Qualified Affordable Housing Project Investments, Amortization	1,900	$ 1,800
Affordable Housing Program Obligation	14,282		$ 14,282
Affordable Housing Tax Credits and Other Tax Benefits, Amount	$ 2,400	$ 2,300

Repurchase Agreement Borrowin78

Repurchase Agreement Borrowings (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Nov. 30, 2012
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount	$ 519,863	$ 509,795
Pledged Assets Separately Reported, Securities Pledged for Repurchase Agreements, at Fair Value	594,000	569,000
Available unpledged securities	570,000	640,000
Long-term Debt [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Long-term Debt, Prepayment Penalty	25,000
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount			$ 300,000
Payments of Debt Extinguishment Costs, Unamortized Balance	3,500	4,700
Maturity Overnight [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount	218,759	208,691
Maturity up to 30 days [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount	0	0
Maturity 30 to 90 Days [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount	0	0
Maturity over 90 days [Member]
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Transfers Accounted for as Secured Borrowings, Associated Liabilities, Carrying Amount	$ 301,104	$ 301,104

Contingent Liabilities (Details

Contingent Liabilities (Details) $ in Millions	Mar. 31, 2017USD ($)
Loss Contingencies [Line Items]
Loss Contingency Accrual	$ 2.3

Subsequent Events (Details)

Subsequent Events (Details)	3 Months Ended
	Mar. 31, 2017USD ($)
Subsequent Event [Line Items]
Early Repayment of Subordinated Debt	$ 30,000,000
Subordinated Borrowing, Interest Rate	7.00%
Interest Expense, Subordinated Notes and Debentures	$ 140,000