Park National (PRK) 10-Q 28 Oct 16 2016 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 27, 2016
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
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		15,340,728

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 117,457	$ 119,412
Money market instruments	122,541	30,047
Cash and cash equivalents	239,998	149,459
Investment securities:
Securities available-for-sale, at fair value (amortized cost of $1,203,988 and $1,436,714 at September 30, 2016 and December 31, 2015, respectively)	1,224,849	1,436,266
Securities held-to-maturity, at amortized cost (fair value of $200,538 and $151,428 at September 30, 2016 and December 31, 2015, respectively)	195,095	149,302
Other investment securities	58,311	58,311
Total investment securities	1,478,255	1,643,879
Loans	5,187,004	5,068,085
Allowance for loan losses	(53,562)	(56,494)
Net loans	5,133,442	5,011,591
Bank owned life insurance	184,181	181,684
Prepaid assets	87,973	80,635
Goodwill	72,334	72,334
Premises and equipment, net	58,361	59,493
Affordable housing tax credit investments	54,757	51,247
Other real estate owned	14,941	18,651
Interest Receivable	17,951	18,675
Mortgage loan servicing rights	8,745	9,008
Other	13,154	14,698
Total assets	7,364,092	7,311,354
Liabilities and Shareholders' Equity:
Noninterest bearing	1,429,024	1,404,032
Interest bearing	4,090,635	3,943,610
Total deposits	5,519,659	5,347,642
Short-term borrowings	218,214	394,242
Long-term debt	742,723	738,105
Subordinated debentures and notes	45,000	45,000
Unfunded commitments in affordable housing tax credit investments	24,756	20,311
Accrued interest payable	2,305	2,338
Other	60,372	50,361
Total liabilities	6,613,029	6,597,999
Shareholders' equity:
Preferred shares (200,000 shares authorized; 0 shares issued)	0	0
Common shares (No par value; 20,000,000 shares authorized; 16,150,820 shares issued at September 30, 2016 and 16,150,854 shares issued at December 31, 2015)	305,152	303,966
Retained earnings	530,177	507,505
Treasury shares (820,039 shares at September 30, 2016 and December 31, 2015)	(82,473)	(82,473)
Accumulated other comprehensive loss, net of taxes	(1,793)	(15,643)
Total shareholders' equity	751,063	713,355
Total liabilities and shareholders' equity	$ 7,364,092	$ 7,311,354

Consolidated Condensed Balance3

Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Securities available-for-sale, amortized cost	$ 1,203,988	$ 1,436,714
Securities held-to-maturity, fair value	$ 200,538	$ 151,428
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	16,150,820	16,150,854
Treasury stock shares	820,039	820,039

Consolidated Condensed Statemen

Consolidated Condensed Statements Of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest and dividend income:
Interest and fees on loans	$ 59,893	$ 57,680	$ 178,346	$ 169,555
Interest and dividends on:
Obligations of U.S. Government, its agencies and other securities	7,339	9,163	23,718	27,665
Interest Income, Securities, State and Municipal	689	12	1,653	12
Other interest income	321	232	844	677
Total interest and dividend income	68,242	67,087	204,561	197,909
Interest on deposits:
Demand and savings deposits	1,094	614	2,851	1,656
Time deposits	2,352	2,508	7,128	7,672
Interest on borrowings:
Short-term borrowings	84	109	330	348
Long-term debt	6,179	6,141	18,415	18,468
Total interest expense	9,709	9,372	28,724	28,144
Net interest income	58,533	57,715	175,837	169,765
(Recovery of) provision for loan losses	(7,366)	2,404	(3,819)	5,648
Net interest income after provision for loan losses	65,899	55,311	179,656	164,117
Other income:
Income from fiduciary activities	5,315	4,933	15,866	15,055
Service charges on deposit accounts	3,800	3,909	10,798	10,974
Other service income	3,640	3,251	9,565	8,577
Checkcard fee income	3,780	3,643	11,180	10,659
Bank owned life insurance income	1,038	1,574	3,284	4,538
ATM Fees	581	648	1,734	1,840
OREO valuation adjustments	(233)	(718)	(572)	(1,273)
Gain on sale of OREO, net	783	243	1,079	1,429
Gain (Loss) on Sales of Loans, Net	0	0	0	756
Other	1,831	2,708	3,726	5,700
Total other income	20,535	20,191	56,660	58,255
Other expense:
Salaries and employee benefits	22,084	21,692	64,894	63,669
Employee Benefits and Share-based Compensation	5,073	6,721	14,740	17,135
Occupancy expense	2,506	2,469	7,693	7,429
Furniture and equipment expense	3,437	3,044	10,296	8,737
Data processing fees	1,450	1,383	4,040	3,847
Professional fees and services	6,356	5,424	18,424	15,701
Marketing	1,062	1,058	3,246	3,008
Insurance	1,423	1,399	4,272	4,222
Communication	1,154	1,245	3,728	3,809
Excise and Sales Taxes	895	779	2,619	2,709
Other expense	1,316	2,215	8,009	7,550
Total other expense	46,756	47,429	141,961	137,816
Income before income taxes	39,678	28,073	94,355	84,556
Income taxes	12,229	8,033	28,222	24,433
Net income	27,449	20,040	66,133	60,123
Net income available to common shareholders	$ 27,449	$ 20,040	$ 66,133	$ 60,123
Net income available to common shareholders
Basic	$ 1.79	$ 1.30	$ 4.31	$ 3.91
Diluted	$ 1.78	$ 1.30	$ 4.29	$ 3.90
Weighted average common shares outstanding
Basic	15,330,791	15,361,087	15,330,802	15,370,380
Diluted	15,399,707	15,401,808	15,401,825	15,411,511
Cash dividends declared	$ 0.94	$ 0.94	$ 2.82	$ 2.82

Consolidated Condensed Stateme5

Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net Income	$ 27,449	$ 20,040	$ 66,133	$ 60,123
Other comprehensive income, net of tax:
Unrealized net holding (loss) gain on securities available-for-sale, net of income tax (benefit) expense of $(1,174) and $3,528 for the three months ended September 30, 2016 and 2015, and $7,459 and $3,328 for the nine months ended September 30, 2016 and 2015, respectively	(2,182)	6,551	13,850	6,179
Other comprehensive income (loss)	(2,182)	6,551	13,850	6,179
Comprehensive income	$ 25,267	$ 26,591	$ 79,983	$ 66,302

Consolidated Condensed Stateme6

Consolidated Condensed Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Unrealized net holding (loss) gain on securities available-for-sale, Tax expense	$ (1,174)	$ 3,528	$ 7,459	$ 3,328

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]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance				$ 484,484
Cumulative Effect of New Accounting Principle in Period of Adoption				(2,057)
Balance at Dec. 31, 2014		$ 0	$ 303,104	486,541	$ (77,439)	$ (13,608)
Net Income	$ 60,123			60,123
Other comprehensive income, net of tax:
Unrealized net holding (loss) gain on securities available-for-sale, net of income taxes	6,179					6,179
Dividends on common shares at $2.82 per share				(43,462)
Cash payment for fractional shares in dividend reinvestment plan			(3)
Allocated Share-based Compensation Expense	704		704
Treasury Stock, Value, Acquired, Cost Method					(4,279)
Balance at Sep. 30, 2015		0	303,805	501,145	(81,718)	(7,429)
Balance at Dec. 31, 2015	713,355	0	303,966	507,505	(82,473)	(15,643)
Net Income	66,133			66,133
Other comprehensive income, net of tax:
Unrealized net holding (loss) gain on securities available-for-sale, net of income taxes	13,850					13,850
Dividends on common shares at $2.82 per share				(43,461)
Cash payment for fractional shares in dividend reinvestment plan			(3)
Allocated Share-based Compensation Expense	1,190		1,189
Balance at Sep. 30, 2016	$ 751,063	$ 0	$ 305,152	$ 530,177	$ (82,473)	$ (1,793)

Consolidated Condensed Stateme8

Consolidated Condensed Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock per share	$ 2.82	$ 2.82

Consolidated Condensed Stateme9

Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net Income	$ 66,133	$ 60,123
Adjustments to reconcile net income to net cash provided by operating activities:
(Recovery of) provision for loan losses	(3,819)	5,648
Amortization (accretion) of investment securities, net	5,439	4,921
Provision for depreciation	6,283	5,362
Amortization (accretion) of investment securities, net	103	(186)
Amortization of prepayment penalty of long-term debt	4,618	4,522
Loan originations to be sold in secondary market	(205,576)	(163,764)
Proceeds from sale of loans in secondary market	201,616	160,593
Share-based compensation expense	1,189	704
OREO valuation adjustments	572	1,273
Gain on sale of OREO, net	(1,079)	(1,429)
Gain on sale of commercial loans held for sale	0	(756)
Bank owned life insurance income	(3,284)	(4,538)
Changes in assets and liabilities:
Increase in other assets	(15,890)	(12,461)
Decrease (increase) in other liabilities	5,443	(3,214)
Net cash provided by operating activities	57,810	53,830
Proceeds from maturity of:
Available-for-sale securities	706,634	198,418
Held-to-maturity securities	19,301	29,148
Purchases of:
Available-for-sale securities	(473,627)	(180,273)
Payments to Acquire Held-to-maturity Securities	(61,155)	(6,096)
Net loan originations, portfolio loans	(109,114)	(174,952)
Proceeds from the sale of commercial loans held for sale		900
Investments in qualified affordable housing projects	(4,555)	(4,290)
Proceeds from the sale of OREO	6,954	15,189
Payments to Acquire Life Insurance Policies	0	(10,045)
Life insurance death benefits	1,050	6,034
Purchases of premises and equipment, net	(5,516)	(9,464)
Net cash provided by (used in) investing activities	79,972	(135,431)
Financing activities:
Net increase in deposits	172,017	326,982
Net (decrease) increase in short-term borrowings	(176,028)	1,344
Proceeds from issuance of long-term debt	0	25,000
Repurchase of treasury shares	0	(4,279)
Repayment of long-term debt	0	(79,544)
Cash dividends paid	(43,232)	(43,346)
Net cash (used in) provided by financing activities	(47,243)	226,157
Increase in cash and cash equivalents	90,539	144,556
Cash and cash equivalents at beginning of year	149,459	237,699
Cash and cash equivalents at end of period	239,998	382,255
Supplemental disclosures of cash flow information:
Cash paid for interest	28,757	28,225
Cash paid for income taxes	17,460	19,820
Non cash activities:
Loans transferred to OREO	2,856	12,845
Transfers from loans to commercial loans held for sale	0	144
Securities acquired through payable	4,323	0
Affordable Housing Program Obligation, Period Increase (Decrease)	9,000	9,000
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	3,938	$ 2,968
Commercial Portfolio Segment [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of commercial loans held for sale	0
Purchases of:
Proceeds from the sale of commercial loans held for sale	$ 0

Basis Of Presentation

Basis Of Presentation	9 Months Ended
	Sep. 30, 2016
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 and nine-month period ended September 30, 2016 are not necessarily indicative of the operating results to be anticipated for the fiscal year ending December 31, 2016. 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, 2015 from Park’s 2015 Annual Report to Shareholders (“Park's 2015 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 2015 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	9 Months Ended
	Sep. 30, 2016
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 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. The adoption of this guidance is not expected to have a material impact on Park's consolidated financial statements. ASU 2015-02 - Consolidation (Topic 810): Amendments to the Consolidation Analysis : In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810) : Amendments to the Consolidation Analysis . The ASU amends the current consolidation guidance and affect both the variable interest entity and voting interest entity consolidation models. The new guidance is effective for annual reporting periods and interim reporting periods within those annual periods, beginning after December 15, 2015. The adoption of this guidance on January 1, 2016 did not have an impact on Park’s consolidated financial statements. 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. The adoption of this guidance is not expected to have a material impact on Park's consolidated financial statements. 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 is effective for annual reporting periods and interim reporting periods within those annual periods, beginning after December 15, 2016. Early adoption is permitted. The adoption of this guidance is not expected to 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. Upon initial recognition of the exposure, the CECL model requires an entity to estimate the credit losses expected over the life of an exposure. The CECL model is applicable to the measurement of credit losses on financial assets measured at amortized cost, including loan receivables, held-to-maturity (HTM) 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 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, but anticipates that it will have a material impact on 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. 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 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.

Loans

Loans	9 Months Ended
	Sep. 30, 2016
Loans and Leases Receivable Disclosure [Abstract]
Loans	Loans The composition of the loan portfolio, by class of loan, as of September 30, 2016 and December 31, 2015 was as follows: September 30, 2016 December 31, 2015 (In thousands) Loan Balance Accrued Interest Receivable Recorded Investment Loan Balance Accrued Interest Receivable Recorded Investment Commercial, financial and agricultural * $ 958,029 $ 3,786 $ 961,815 $ 955,727 $ 3,437 $ 959,164 Commercial real estate * 1,141,002 4,268 1,145,270 1,113,603 4,009 1,117,612 Construction real estate: SEPH commercial land and development 1,700 — 1,700 2,044 — 2,044 Remaining commercial 136,883 316 137,199 128,046 321 128,367 Mortgage 41,848 88 41,936 36,722 75 36,797 Installment 5,544 18 5,562 6,533 21 6,554 Residential real estate: Commercial 408,372 925 409,297 410,571 1,014 411,585 Mortgage 1,189,232 1,382 1,190,614 1,210,819 1,469 1,212,288 HELOC 212,968 788 213,756 211,415 769 212,184 Installment 19,481 65 19,546 22,638 78 22,716 Consumer 1,068,343 2,884 1,071,227 967,111 3,032 970,143 Leases 3,602 55 3,657 2,856 14 2,870 Total loans $ 5,187,004 $ 14,575 $ 5,201,579 $ 5,068,085 $ 14,239 $ 5,082,324 * Included within 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 $11.0 million at September 30, 2016 and $10.4 million at December 31, 2015 , which represented a net deferred income position in both periods. Overdrawn deposit accounts of $2.8 million and $1.7 million have been reclassified to loans at September 30, 2016 and December 31, 2015 , 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 September 30, 2016 and December 31, 2015 : September 30, 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 $ 22,951 $ 953 $ — $ 23,904 Commercial real estate 21,760 4,305 — 26,065 Construction real estate: SEPH commercial land and development 1,700 — — 1,700 Remaining commercial 2,257 420 — 2,677 Mortgage — 105 — 105 Installment 46 96 — 142 Residential real estate: Commercial 23,700 — — 23,700 Mortgage 19,768 9,570 750 30,088 HELOC 2,111 629 51 2,791 Installment 589 609 25 1,223 Consumer 2,950 716 897 4,563 Total loans $ 97,832 $ 17,403 $ 1,723 $ 116,958 December 31, 2015 (In thousands) Nonaccrual Loans Accruing Troubled Debt Restructurings Loans Past Due 90 Days or More and Accruing Total Nonperforming Loans Commercial, financial and agricultural $ 21,676 $ 8,947 $ — $ 30,623 Commercial real estate 15,268 2,757 — 18,025 Construction real estate: SEPH commercial land and development 2,044 — — 2,044 Remaining commercial 4,162 514 — 4,676 Mortgage 7 110 — 117 Installment 64 114 — 178 Residential real estate: Commercial 25,063 261 — 25,324 Mortgage 20,378 10,143 851 31,372 HELOC 1,749 873 27 2,649 Installment 1,657 635 4 2,296 Consumer 3,819 734 1,093 5,646 Total loans $ 95,887 $ 25,088 $ 1,975 $ 122,950 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 September 30, 2016 and December 31, 2015 . September 30, 2016 December 31, 2015 (In thousands) Nonaccrual and Accruing Troubled Debt Restructurings Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Nonaccrual and Accruing Troubled Debt Restructurings Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Commercial, financial and agricultural $ 23,904 $ 23,856 $ 48 $ 30,623 $ 30,595 $ 28 Commercial real estate 26,065 26,065 — 18,025 18,025 — Construction real estate: SEPH commercial land and development 1,700 1,700 — 2,044 2,044 — Remaining commercial 2,677 2,677 — 4,676 4,676 — Mortgage 105 — 105 117 — 117 Installment 142 — 142 178 — 178 Residential real estate: Commercial 23,700 23,700 — 25,324 25,324 — Mortgage 29,338 — 29,338 30,521 — 30,521 HELOC 2,740 — 2,740 2,622 — 2,622 Installment 1,198 — 1,198 2,292 — 2,292 Consumer 3,666 — 3,666 4,553 — 4,553 Total loans $ 115,235 $ 77,998 $ 37,237 $ 120,975 $ 80,664 $ 40,311 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 September 30, 2016 and December 31, 2015 . September 30, 2016 December 31, 2015 (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 $ 27,346 $ 13,225 $ — $ 32,583 $ 18,763 $ — Commercial real estate 23,558 23,294 — 15,138 14,916 — Construction real estate: SEPH commercial land and development 3,268 1,700 — 10,834 2,044 — Remaining commercial 1,882 1,834 — 2,506 1,531 — Residential real estate: Commercial 22,671 21,975 — 23,798 23,480 — With an allowance recorded: Commercial, financial and agricultural 14,777 10,631 3,191 16,155 11,832 1,904 Commercial real estate 2,771 2,771 525 3,195 3,109 381 Construction real estate: Remaining commercial 2,112 843 61 3,145 3,145 1,356 Residential real estate: Commercial 1,803 1,725 455 1,951 1,844 550 Consumer — — — — — — Total $ 100,188 $ 77,998 $ 4,232 $ 109,305 $ 80,664 $ 4,191 Management’s general practice is to proactively charge down loans individually evaluated for impairment to the fair value of the underlying collateral. At September 30, 2016 and December 31, 2015 , there were $16.7 million and $24.2 million , respectively, of partial charge-offs on loans individually evaluated for impairment with no related allowance recorded and $5.5 million and $4.5 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 of $4.2 million related to loans individually evaluated for impairment at each of September 30, 2016 and December 31, 2015 . These loans with specific reserves had a recorded investment of $16.0 million and $19.9 million as of September 30, 2016 and December 31, 2015 , respectively. Interest income on loans individually evaluated for impairment is recognized on a cash basis only when Park expects to receive the entire recorded investment of the loan. 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 and nine months ended September 30, 2016 and September 30, 2015 : Three Months Ended Three Months Ended (In thousands) Recorded Investment as of September 30, 2016 Average Recorded Investment Interest Income Recognized Recorded Investment as of September 30, 2015 Average Recorded Investment Interest Income Recognized Commercial, financial and agricultural $ 23,856 $ 26,679 $ 194 $ 19,154 $ 19,793 $ 35 Commercial real estate 26,065 27,982 243 17,662 17,453 132 Construction real estate: SEPH commercial land and development 1,700 1,700 — 2,045 2,068 — Remaining commercial 2,677 3,943 16 5,993 6,059 2 Residential real estate: Commercial 23,700 24,422 314 24,370 24,560 240 Consumer — 10 — — — — Total $ 77,998 $ 84,736 $ 767 $ 69,224 $ 69,933 $ 409 Nine Months Ended Nine Months Ended (In thousands) Recorded investment as of September 30, 2016 Average recorded investment Interest income recognized Recorded investment as of September 30, 2015 Average recorded investment Interest income recognized Commercial, financial and agricultural $ 23,856 $ 28,217 $ 740 $ 19,154 $ 19,056 $ 306 Commercial real estate 26,065 22,108 608 17,662 17,857 418 Construction real estate: SEPH commercial land and development 1,700 1,906 — 2,045 2,073 8 Remaining commercial 2,677 4,338 44 5,993 5,771 13 Residential real estate: Commercial 23,700 24,618 2,619 24,370 24,784 768 Consumer — 4 — — — — Total $ 77,998 $ 81,191 $ 4,011 $ 69,224 $ 69,541 $ 1,513 The following tables present the aging of the recorded investment in past due loans as of September 30, 2016 and December 31, 2015 by class of loan. September 30, 2016 (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 $ 1,368 $ 4,071 $ 5,439 $ 956,376 $ 961,815 Commercial real estate 448 2,724 3,172 1,142,098 1,145,270 Construction real estate: SEPH commercial land and development — 1,700 1,700 — 1,700 Remaining commercial — 79 79 137,120 137,199 Mortgage 45 — 45 41,891 41,936 Installment 93 — 93 5,469 5,562 Residential real estate: Commercial 120 3,878 3,998 405,299 409,297 Mortgage 8,753 9,637 18,390 1,172,224 1,190,614 HELOC 277 1,190 1,467 212,289 213,756 Installment 293 882 1,175 18,371 19,546 Consumer 10,046 1,955 12,001 1,059,226 1,071,227 Leases — — — 3,657 3,657 Total loans $ 21,443 $ 26,116 $ 47,559 $ 5,154,020 $ 5,201,579 (1) Includes $1.7 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $73.4 million of nonaccrual loans which are current in regards to contractual principal and interest payments. December 31, 2015 (in thousands) Accruing Loans Past Due 30-89 Days Past Due Total Past Due Total Current (2) Total Recorded Investment Commercial, financial and agricultural $ 670 $ 7,536 $ 8,206 $ 950,958 $ 959,164 Commercial real estate 142 530 672 1,116,940 1,117,612 Construction real estate: SEPH commercial land and development — 2,044 2,044 — 2,044 Remaining commercial 165 84 249 128,118 128,367 Mortgage 63 7 70 36,727 36,797 Installment 200 46 246 6,308 6,554 Residential real estate: Commercial 325 19,521 19,846 391,739 411,585 Mortgage 10,569 8,735 19,304 1,192,984 1,212,288 HELOC 487 186 673 211,511 212,184 Installment 426 318 744 21,972 22,716 Consumer 11,458 3,376 14,834 955,309 970,143 Leases — — — 2,870 2,870 Total loans $ 24,505 $ 42,383 $ 66,888 $ 5,015,436 $ 5,082,324 (1) Includes $2.0 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $55.5 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 September 30, 2016 and December 31, 2015 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 September 30, 2016 and December 31, 2015 for all commercial loans: September 30, 2016 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 5,339 $ 25 $ 23,904 $ 932,547 $ 961,815 Commercial real estate * 6,917 434 26,065 1,111,854 1,145,270 Construction real estate: SEPH commercial land and development — — 1,700 — 1,700 Remaining commercial 504 119 2,677 133,899 137,199 Residential real estate: Commercial 989 177 23,700 384,431 409,297 Leases — — — 3,657 3,657 Total commercial loans $ 13,749 $ 755 $ 78,046 $ 2,566,388 $ 2,658,938 * Included within 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, 2015 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 4,392 $ 347 $ 30,623 $ 923,802 $ 959,164 Commercial real estate * 14,880 3,417 18,025 1,081,290 1,117,612 Construction real estate: SEPH commercial land and development — — 2,044 — 2,044 Remaining commercial 2,151 122 4,676 121,418 128,367 Residential real estate: Commercial 3,280 386 25,324 382,595 411,585 Leases — — — 2,870 2,870 Total Commercial Loans $ 24,703 $ 4,272 $ 80,692 $ 2,511,975 $ 2,621,642 * Included within 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 and nine -month periods ended September 30, 2016 and September 30, 2015 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. 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 does 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. During the three -month and nine -month periods ended September 30, 2016 , Park removed the TDR classification on $335,000 and $2.0 million , respectively, of loans that met the requirements discussed above. The TDR classification was not removed on any loans during the three -month and nine -month periods ended September 30, 2015 . At September 30, 2016 and December 31, 2015 , there were $51.2 million and $41.1 million , respectively, of TDRs included in the nonaccrual loan totals. At September 30, 2016 and December 31, 2015 , $42.7 million and $19.1 million of these nonaccrual TDRs were performing in accordance with the terms of the restructured note. As of September 30, 2016 and December 31, 2015 , there were $17.4 million and $25.1 million , respectively, of TDRs included in accruing loan totals. Management will continue to review the restructured loans and may determine it appropriate to move certain of the loans back to accrual status in the future. At September 30, 2016 and December 31, 2015 , Park had commitments to lend $1.2 million and $2.3 million , respectively, of additional funds to borrowers whose outstanding loan terms had been modified in a TDR. There were $1.9 million and $2.3 million of specific reserves related to TDRs at September 30, 2016 and December 31, 2015 , respectively. Modifications made in 2015 and 2016 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. There were no additional specific reserves recorded during the three -month period ended September 30, 2016 as a result of TDRs identified in 2016. During the nine -month period ended September 30, 2016 , $975,000 of additional specific reserves were recorded as a result of TDRs identified in 2016. Additional specific reserves of $212,000 and $1.2 million were recorded during the three -month and nine -month periods ended September 30, 2015 , respectively, as a result of TDRs identified in 2015 . The terms of certain other loans were modified during the nine -month periods ended September 30, 2016 and September 30, 2015 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 September 30, 2016 and September 30, 2015 of $437,000 and $245,000 , respectively. 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 $5.1 million and $12.8 million , as of September 30, 2016 and September 30, 2015 , 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 and nine -month periods ended September 30, 2016 and September 30, 2015 , as well as the recorded investment of these contracts at September 30, 2016 and September 30, 2015 . 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 12 $ 152 $ 6,451 $ 6,603 Commercial real estate 6 — 1,777 1,777 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 1 — 947 947 Mortgage — — — — Installment — — — — Residential real estate: Commercial 4 — 225 225 Mortgage 14 — 1,173 1,173 HELOC 2 — 91 91 Installment 2 33 4 37 Consumer 74 61 1,508 1,569 Total loans 115 $ 246 $ 12,176 $ 12,422 Three Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 8 $ 245 $ 3,818 $ 4,063 Commercial real estate 5 — 1,512 1,512 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 1 196 — 196 Mortgage — — — — Installment — — — — Residential real estate: Commercial 1 200 — 200 Mortgage 9 — 748 748 HELOC 5 16 31 47 Installment 1 — 4 4 Consumer 61 51 412 463 Total loans 91 $ 708 $ 6,525 $ 7,233 Of those loans which were modified and determined to be a TDR during the three -month period ended September 30, 2016 , $7.6 million were on nonaccrual status as of December 31, 2015 . Of those loans which were modified and determined to be a TDR during the three -month period ended September 30, 2015 , $160,000 were on nonaccrual status as of December 31, 2014 . Nine Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 29 $ 102 $ 7,242 $ 7,344 Commercial real estate 10 2,812 2,306 5,118 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 2 — 1,144 1,144 Mortgage — — — — Installment 1 — 9 9 Residential real estate: Commercial 7 — 918 918 Mortgage 23 96 1,713 1,809 HELOC 10 17 184 201 Installment 4 72 7 79 Consumer 223 115 2,042 2,157 Total loans 309 $ 3,214 $ 15,565 $ 18,779 Nine Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 33 $ 1,014 $ 5,168 $ 6,182 Commercial real estate 11 — 2,525 2,525 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 1 196 — 196 Mortgage 1 — 20 20 Installment — — — — Residential real estate: Commercial 10 200 1,144 1,344 Mortgage 24 325 1,199 1,524 HELOC 21 242 105 347 Installment 4 — 36 36 Consumer 217 71 748 819 Total loans 322 $ 2,048 $ 10,945 $ 12,993 Of those loans which were modified and determined to be a TDR during the nine -month period ended September 30, 2016 , $8.5 million were on nonaccrual status as of December 31, 2015 . Of those loans which were modified and determined to be a TDR during the nine -month period ended September 30, 2015 , $1.0 million were on nonaccrual status as of December 31, 2014 . 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 and nine -month periods ended September 30, 2016 and September 30, 2015 , 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 5 $ 129 7 $ 821 Commercial real estate 4 808 — — Construction real estate: SEPH commercial land and development — — — — Remaining commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 3 679 1 603 Mortgage 13 1,687 13 902 HELOC — — — — Installment 2 7 1 28 Consumer 53 559 50 310 Leases — — — — Total loans 80 $ 3,869 72 $ 2,664 Of the $3.9 million in modified TDRs which defaulted during the three months ended September 30, 2016 , $14,000 were accruing loans and $3.9 million were nonaccrual loans. Of the $2.7 million in modified TDRs which defaulted during the three months ended September 30, 2015 , there were $61,000 accruing loans and $2.6 million were nonaccrual loans. Nine Months Ended Nine Months Ended (In thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial, financial and agricultural 5 $ 129 7 $ 821 Commercial real estate 4 808 — — Construction real estate: SEPH commercial land and development — — — — Remaining commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 4 709 1 603 Mortgage 13 1,687 13 902 HELOC — — — — Installment 2 7 1 28 Consumer 60 611 55 356 Leases — — — — Total loans 88 $ 3,951 77 $ 2,710 Of the $4.0 million in modified TDRs which defaulted during the nine months ended September 30, 2016 , $14,000 were accruing loans and $3.9 million were nonaccrual loans. Of the $2.7 million in modified TDRs which defaulted during the nine months ended September 30, 2015 , $61,000 were accruing loans and $2.6 million were nonaccrual loans.

Allowance For Loan Losses

Allowance For Loan Losses	9 Months Ended
	Sep. 30, 2016
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 2015 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 resulting in management applying this weighting no longer appear to exist, resulting in the adjustment back to equal weightings. • 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. The impact of the changes as 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 activity in the allowance for loan losses for the three and nine months ended September 30, 2016 and September 30, 2015 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 $ 16,478 $ 9,203 $ 8,256 $ 13,180 $ 11,581 $ 1 $ 58,699 Charge-offs 457 4 1,300 293 2,086 — 4,140 Recoveries 246 973 3,659 348 1,142 1 6,369 Net charge-offs/(recoveries) 211 (969 ) (2,359 ) (55 ) 944 (1 ) (2,229 ) Provision/(recovery) 3 401 (5,257 ) (1,907 ) (604 ) (2 ) (7,366 ) Ending balance $ 16,270 $ 10,573 $ 5,358 $ 11,328 $ 10,033 $ — $ 53,562 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 $ 12,124 $ 9,467 $ 8,670 $ 15,268 $ 11,898 $ — $ 57,427 Charge-offs 829 46 4 575 2,262 — 3,716 Recoveries 415 386 274 461 832 — 2,368 Net charge-offs/(recoveries) 414 (340 ) (270 ) 114 1,430 — 1,348 Provision/(recovery) 1,549 (352 ) 50 (132 ) 1,289 — 2,404 Ending balance $ 13,259 $ 9,455 $ 8,990 $ 15,022 $ 11,757 $ — $ 58,483 Nine 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 1,601 82 1,318 1,776 7,183 — 11,960 Recoveries 889 3,005 4,708 1,226 3,017 2 12,847 Net charge-offs/(recoveries) 712 (2,923 ) (3,390 ) 550 4,166 (2 ) (887 ) Provision/(recovery) 3,288 (1,547 ) (6,596 ) (1,636 ) 2,675 (3 ) (3,819 ) Ending balance $ 16,270 $ 10,573 $ 5,358 $ 11,328 $ 10,033 $ — $ 53,562 Nine 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 $ 10,719 $ 8,808 $ 8,652 $ 14,772 $ 11,401 $ — $ 54,352 Charge-offs 1,680 329 41 1,732 6,379 — 10,161 Recoveries 987 2,188 1,238 1,808 2,420 3 8,644 Net charge-offs/(recoveries) 693 (1,859 ) (1,197 ) (76 ) 3,959 (3 ) 1,517 Provision/(recovery) 3,233 (1,212 ) (859 ) 174 4,315 (3 ) 5,648 Ending balance $ 13,259 $ 9,455 $ 8,990 $ 15,022 $ 11,757 $ — $ 58,483 Loans collectively evaluated for impairment in the following tables include all performing loans at September 30, 2016 and December 31, 2015 , 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 September 30, 2016 and December 31, 2015 , 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 2015 Annual Report). The composition of the allowance for loan losses at September 30, 2016 and December 31, 2015 was as follows: September 30, 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 $ 3,191 $ 525 $ 61 $ 455 $ — $ — $ 4,232 Collectively evaluated for impairment 13,079 10,048 5,297 10,873 10,033 — 49,330 Total ending allowance balance $ 16,270 $ 10,573 $ 5,358 $ 11,328 $ 10,033 $ — $ 53,562 Loan balance: Loans individually evaluated for impairment $ 23,852 $ 26,057 $ 4,377 $ 23,700 $ — $ — $ 77,986 Loans collectively evaluated for impairment 934,177 1,114,945 181,599 1,806,352 1,068,343 3,602 5,109,018 Total ending loan balance $ 958,029 $ 1,141,002 $ 185,976 $ 1,830,052 $ 1,068,343 $ 3,602 $ 5,187,004 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 13.38 % 2.01 % 1.39 % 1.92 % — % — % 5.43 % Loans collectively evaluated for impairment 1.40 % 0.90 % 2.92 % 0.60 % 0.94 % — % 0.97 % Total 1.70 % 0.93 % 2.88 % 0.62 % 0.94 % — % 1.03 % Recorded investment: Loans individually evaluated for impairment $ 23,856 $ 26,065 $ 4,377 $ 23,700 $ — $ — $ 77,998 Loans collectively evaluated for impairment 937,959 1,119,205 182,020 1,809,513 1,071,227 3,657 5,123,581 Total ending recorded investment $ 961,815 $ 1,145,270 $ 186,397 $ 1,833,213 $ 1,071,227 $ 3,657 $ 5,201,579 December 31, 2015 (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 $ 1,904 $ 381 $ 1,356 $ 550 $ — $ — $ 4,191 Collectively evaluated for impairment 11,790 8,816 7,208 12,964 11,524 1 52,303 Total ending allowance balance $ 13,694 $ 9,197 $ 8,564 $ 13,514 $ 11,524 $ 1 $ 56,494 Loan balance: Loans individually evaluated for impairment $ 30,545 $ 18,015 $ 6,716 $ 25,323 $ — $ — $ 80,599 Loans collectively evaluated for impairment 925,182 1,095,588 166,629 1,830,120 967,111 2,856 4,987,486 Total ending loan balance $ 955,727 $ 1,113,603 $ 173,345 $ 1,855,443 $ 967,111 $ 2,856 $ 5,068,085 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 6.23 % 2.11 % 20.19 % 2.17 % — % — % 5.20 % Loans collectively evaluated for impairment 1.27 % 0.80 % 4.33 % 0.71 % 1.19 % 0.04 % 1.05 % Total 1.43 % 0.83 % 4.94 % 0.73 % 1.19 % 0.04 % 1.11 % Recorded investment: Loans individually evaluated for impairment $ 30,595 $ 18,025 $ 6,720 $ 25,324 $ — $ — $ 80,664 Loans collectively evaluated for impairment 928,569 1,099,587 167,042 1,833,449 970,143 2,870 5,001,660 Total ending recorded investment $ 959,164 $ 1,117,612 $ 173,762 $ 1,858,773 $ 970,143 $ 2,870 $ 5,082,324

Other Real Estate Owned (Notes)

Other Real Estate Owned (Notes)	9 Months Ended
	Sep. 30, 2016
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 amount of foreclosed properties held at September 30, 2016 and December 31, 2015 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) September 30, 2016 December 31, 2015 OREO: Commercial real estate $ 8,123 $ 8,333 Construction real estate 4,668 7,259 Residential real estate 2,150 3,059 Total OREO $ 14,941 $ 18,651 Loans in process of foreclosure: Residential real estate $ 3,341 $ 2,021

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
	Sep. 30, 2016
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 and nine months ended September 30, 2016 and 2015 . Three Months Ended Nine Months Ended (In thousands, except share and per common share data) 2016 2015 2016 2015 Numerator: Net income available to common shareholders $ 27,449 $ 20,040 $ 66,133 $ 60,123 Denominator: Weighted-average common shares outstanding 15,330,791 15,361,087 15,330,802 15,370,380 Effect of dilutive performance-based restricted stock units 68,916 40,721 71,023 41,131 Weighted-average common shares outstanding adjusted for the effect of dilutive performance-based restricted stock units 15,399,707 15,401,808 15,401,825 15,411,511 Earnings per common share: Basic earnings per common share $ 1.79 $ 1.30 $ 4.31 $ 3.91 Diluted earnings per common share $ 1.78 $ 1.30 $ 4.29 $ 3.90 Park awarded 41,550 and 23,025 performance-based restricted stock units ("PBRSUs") to certain employees during the nine months ended September 30, 2016 and 2015, respectively. No PBRSUs were awarded during the three months ended September 30, 2016 or 2015. As of September 30, 2016, 85,425 PBRSUs were outstanding. The PBRSUs vest based on service and performance conditions. The dilutive effect of the outstanding PBRSUs was the addition of 68,916 and 40,721 common shares for the three months ended September 30, 2016 and 2015, respectively, and 71,023 and 41,131 common shares for the nine months ended September 30, 2016 and 2015, respectively. Park repurchased no common shares during the three and nine months ended September 30, 2016. Park repurchased 20,000 common shares during the three months ended September 30, 2015, and 41,500 common shares during the nine months ended September 30, 2015 to fund the PBRSUs and common shares awarded to directors of Park and to directors of Park's subsidiary PNB (and its divisions).

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 (In thousands) PNB GFSC SEPH All Other Total Net interest income $ 57,033 $ 1,472 $ 8 $ 20 $ 58,533 Recovery of loan losses (3,345 ) (313 ) (3,708 ) — (7,366 ) Other income (loss) 19,279 (1 ) 1,126 131 20,535 Other expense 42,327 800 1,789 1,840 46,756 Income (loss) before income taxes $ 37,330 $ 984 $ 3,053 $ (1,689 ) $ 39,678 Federal income taxes (benefit) 11,839 344 1,070 (1,024 ) 12,229 Net income (loss) $ 25,491 $ 640 $ 1,983 $ (665 ) $ 27,449 Assets (as of September 30, 2016) $ 7,287,923 $ 32,759 $ 36,938 $ 6,472 $ 7,364,092 Operating Results for the three months ended September 30, 2015 (In thousands) PNB GFSC SEPH All Other Total Net interest income $ 55,972 $ 1,643 $ 65 $ 35 $ 57,715 Provision for (recovery of) loan losses 2,587 282 (465 ) — 2,404 Other income 19,699 1 347 144 20,191 Other expense 43,144 726 1,456 2,103 47,429 Income (loss) before income taxes $ 29,940 $ 636 $ (579 ) $ (1,924 ) $ 28,073 Federal income taxes (benefit) 9,233 242 (203 ) (1,239 ) 8,033 Net income (loss) $ 20,707 $ 394 $ (376 ) $ (685 ) $ 20,040 Assets (as of September 30, 2015) $ 7,216,773 $ 36,517 $ 37,938 $ 9,112 $ 7,300,340 Operating Results for the nine months ended September 30, 2016 (in thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 170,194 $ 4,416 $ 1,240 $ (13 ) $ 175,837 (Recovery of) provision for loan losses (450 ) 1,658 (5,027 ) — (3,819 ) Other income (loss) 55,010 (1 ) 1,272 379 56,660 Other expense 126,418 3,632 4,525 7,386 141,961 Income (loss) before income taxes $ 99,236 $ (875 ) $ 3,014 $ (7,020 ) $ 94,355 Federal income taxes (benefit) 30,923 (305 ) 1,056 (3,452 ) 28,222 Net income (loss) $ 68,313 $ (570 ) $ 1,958 $ (3,568 ) $ 66,133 Operating Results for the nine months ended September 30, 2015 (in thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 164,559 $ 5,014 $ (37 ) $ 229 $ 169,765 Provision for (recovery of) loan losses 7,329 1,086 (2,767 ) — 5,648 Other income 56,431 2 1,434 388 58,255 Other expense 124,662 2,264 4,939 5,951 137,816 Income (loss) before income taxes $ 88,999 $ 1,666 $ (775 ) $ (5,334 ) $ 84,556 Federal income taxes (benefit) 27,800 584 (271 ) (3,680 ) 24,433 Net income (loss) $ 61,199 $ 1,082 $ (504 ) $ (1,654 ) $ 60,123 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 and nine-month periods ended September 30, 2016 and 2015 . The reconciling amounts for consolidated total assets for the periods ended September 30, 2016 and 2015 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 (Notes)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 and December 31, 2015 , respectively, Park had approximately $15.2 million and $7.3 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 $15.0 million and $7.2 million at September 30, 2016 and December 31, 2015 , respectively. The gain expected upon sale was $200,000 and $95,000 at September 30, 2016 and December 31, 2015 , respectively. None of these loans were 90 days or more past due or on nonaccrual status as of September 30, 2016 or December 31, 2015 . During the nine-month period ended September 30, 2015 , Park transferred to held for sale and sold certain commercial loans previously held for investment, with a book balance of $144,000 , and recognized a gain of $756,000 . There were no commercial loans held for sale or sold during the three-month period ended September 30, 2015 or during the three-month and nine-month periods ended September 30, 2016 .

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2016
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 and nine month periods ended September 30, 2016 and 2015, there were no investment securities deemed to be other-than-temporarily impaired. Investment securities at September 30, 2016 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 270,000 $ — $ 855 $ 269,145 U.S. Government sponsored entities' asset-backed securities 932,869 20,157 129 952,897 Other equity securities 1,119 1,688 — 2,807 Total $ 1,203,988 $ 21,845 $ 984 $ 1,224,849 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value U.S. Government sponsored entities' asset-backed securities $ 81,812 $ 1,885 $ 19 $ 83,678 Obligations of states and political subdivisions 113,283 3,777 $ 200 116,860 Total $ 195,095 $ 5,662 $ 219 $ 200,538 Securities with unrealized losses at September 30, 2016 , were as follows: Unrealized loss position for less than 12 months Unrealized loss position for 12 months or longer Total (In thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 269,145 $ 855 $ — $ — $ 269,145 $ 855 U.S. Government sponsored entities' asset-backed securities 48,885 64 $ 28,993 65 $ 77,878 129 Total $ 318,030 $ 919 $ 28,993 $ 65 $ 347,023 $ 984 Securities Held-to-Maturity U.S. Government sponsored entities' asset-backed securities $ — $ — $ 7,700 $ 19 $ 7,700 $ 19 Obligations of states and political subdivisions 13,259 $ 200 — — $ 13,259 200 Total $ 13,259 $ 200 $ 7,700 $ 19 $ 20,959 $ 219 Investment securities at December 31, 2015 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 527,605 $ — $ 5,542 $ 522,063 U.S. Government sponsored entities' asset-backed securities 907,989 8,776 5,272 911,493 Other equity securities 1,120 1,590 — 2,710 Total $ 1,436,714 $ 10,366 $ 10,814 $ 1,436,266 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value Obligations of states and political subdivision $ 48,190 $ 734 $ — $ 48,924 U.S. Government sponsored entities' asset-backed securities 101,112 1,526 134 102,504 Total $ 149,302 $ 2,260 $ 134 $ 151,428 Securities with unrealized losses at December 31, 2015 , were as follows: Unrealized loss position for less than 12 months Unrealized loss position for 12 months or longer Total (In thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 326,973 $ 2,117 $ 195,090 $ 3,425 $ 522,063 $ 5,542 U.S. Government sponsored entities' asset-backed securities 384,169 2,776 114,543 2,496 498,712 5,272 Total $ 711,142 $ 4,893 $ 309,633 $ 5,921 $ 1,020,775 $ 10,814 Securities Held-to-Maturity U.S. Government sponsored entities' asset-backed securities $ 5,656 $ 10 $ 7,792 $ 124 $ 13,448 $ 134 Management does not believe any of the unrealized losses at September 30, 2016 or December 31, 2015 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 September 30, 2016 , 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 one through five years $ 270,000 269,145 1.18 % Total $ 270,000 $ 269,145 1.18 % U.S. Government sponsored entities' asset-backed securities: $ 932,869 $ 952,897 2.13 % Securities Held-to-Maturity (In thousands) Amortized cost Fair value Tax equivalent yield Obligations of state and political subdivisions: Due over ten years $ 113,283 $ 116,860 4.35 % Total $ 113,283 $ 116,860 4.35 % U.S. Government sponsored entities' asset-backed securities $ 81,812 $ 83,678 3.31 % All of Park’s securities shown in the table above as U.S. Treasury and other U.S. Government sponsored entities' notes are callable notes. These callable securities have final maturities of 1 to 4 years. Of the $269.1 million reported at September 30, 2016 , none were expected to be called. The remaining average life of the investment portfolio is estimated to be 4.0 years. There were no sales of investment securities during the three-month or nine-month periods ended September 30, 2016 or 2015. Investment securities having an amortized cost of $1,033 million and $1,072 million at September 30, 2016 and December 31, 2015 , 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	9 Months Ended
	Sep. 30, 2016
Other Investment Securities [Abstract]
Other Investment Securities	Other Investment Securities Other investment securities consist of stock investments in the Federal Home Loan Bank ("FHLB") and the Federal Reserve Bank ("FRB"). These restricted stock investments are carried at their redemption value. September 30, December 31, 2015 (In thousands) FHLB stock $ 50,086 $ 50,086 FRB stock 8,225 8,225 Total $ 58,311 $ 58,311

Share Based Compensation (Notes

Share Based Compensation (Notes)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016, 483,675 common shares were available for future grants under the 2013 Incentive Plan. On January 24, 2014, the Compensation Committee of the Board of Directors of Park granted awards of an aggregate of 21,975 performance-based restricted stock units (“PBRSUs”) to certain employees of Park, which grants were effective on January 24, 2014. On December 16, 2014, the Compensation Committee of the Board of Directors of Park granted awards of an aggregate of 23,025 PBRSUs to certain employees of Park, which grants were effective on January 2, 2015. On December 7, 2015, the Compensation Committee of the Board of Directors of Park granted awards of an aggregate of 41,550 PBRSUs to certain employees of Park, which grants were effective on January 1, 2016. The number of PBRSUs earned or settled will depend on certain performance conditions and are also subject to service-based vesting. As of September 30, 2016, 1,125 PBRSUs have been forfeited. Share-based compensation expense of $398,000 and $234,000 was recognized for the three-month periods ended September 30, 2016 and 2015, respectively, and $1.2 million and $704,000 for the nine-month periods ended September 30, 2016 and 2015, respectively. Park expects to recognize additional share-based compensation expense of approximately $389,000 through the first quarter of 2018 related to PBRSUs granted in 2014, approximately $871,000 through the first quarter of 2019 related to PBRSUs granted in 2015 and approximately $2.3 million through the first quarter of 2020 related to PBRSUs granted in 2016.

Pension Plan

Pension Plan	9 Months Ended
	Sep. 30, 2016
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 or nine-month periods ended September 30, 2016 and 2015 . The following table shows the components of net periodic benefit income: Three Months Ended Nine Months Ended (In thousands) 2016 2015 2016 2015 Service cost $ 1,264 $ 1,342 $ 3,792 $ 4,026 Interest cost 1,217 1,174 3,651 3,522 Expected return on plan assets (2,737 ) (2,855 ) (8,211 ) (8,565 ) Amortization of prior service cost — 4 — 12 Recognized net actuarial loss 193 159 579 477 Net periodic benefit income $ (63 ) $ (176 ) $ (189 ) $ (528 )

Loan Servicing

Loan Servicing	9 Months Ended
	Sep. 30, 2016
Transfers and Servicing of Financial Assets [Abstract]
Loan Servicing	Loan Servicing Park serviced sold mortgage loans of $1.31 billion at September 30, 2016 , $1.28 billion at December 31, 2015 and $1.27 billion at September 30, 2015 . At September 30, 2016 , $4.3 million of the sold mortgage loans were sold with recourse, compared to $5.4 million at December 31, 2015 and $5.7 million at September 30, 2015 . Management closely monitors the delinquency rates on the mortgage loans sold with recourse. At September 30, 2016 and December 31, 2015, management had established reserves of $270,000 and $454,000 , 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 Nine Months Ended (In thousands) 2016 2015 2016 2015 Mortgage servicing rights: Carrying amount, net, beginning of period $ 8,880 $ 8,561 $ 9,008 $ 8,613 Additions 747 476 1,618 1,283 Amortization (522 ) (436 ) (1,312 ) (1,266 ) Changes in valuation allowance (360 ) 211 (569 ) 182 Carrying amount, net, end of period $ 8,745 $ 8,812 $ 8,745 $ 8,812 Valuation allowance: Beginning of period $ 751 $ 855 $ 542 $ 826 Changes in valuation allowance 360 (211 ) 569 (182 ) End of period $ 1,111 $ 644 $ 1,111 $ 644 Servicing fees included in other service income were $0.9 million for the three months ended September 30, 2016 and $0.8 million for the same period of 2015, and were $2.5 million for each of the nine months ended September 30, 2016 and 2015, respectively.

Fair Value

Fair Value	9 Months Ended
	Sep. 30, 2016
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 in accordance with 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 September 30, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at September 30, 2016 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 269,145 $ — $ 269,145 U.S. Government sponsored entities’ asset-backed securities — 952,897 — 952,897 Equity securities 2,028 — 779 2,807 Mortgage loans held for sale — 15,204 — 15,204 Mortgage IRLCs — 301 — 301 Liabilities Fair value swap $ — $ — $ 226 $ 226 Fair Value Measurements at December 31, 2015 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2015 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 522,063 $ — $ 522,063 U.S. Government sponsored entities’ asset-backed securities — 911,493 — 911,493 Equity securities 1,941 — 769 2,710 Mortgage loans held for sale — 7,306 — 7,306 Mortgage IRLCs — 165 — 165 Liabilities Fair value swap $ — $ — $ 226 $ 226 There were no transfers between Level 1 and Level 2 during the three or nine months ended September 30, 2016 or 2015 . 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 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): 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 and nine months ended September 30, 2016 and 2015 , for financial instruments measured on a recurring basis and classified as Level 3: Level 3 Fair Value Measurements Three months ended September 30, 2016 and 2015 (In thousands) Equity Securities Fair value swap Balance at July 1, 2016 $ 821 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income (42 ) — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2016 $ 779 $ (226 ) Balance at July 1, 2015 $ 744 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income 13 — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2015 $ 757 $ (226 ) Level 3 Fair Value Measurements Nine months ended September 30, 2016 and 2015 (In thousands) Equity Securities Fair value swap Balance at January 1, 2016 $ 769 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income 10 — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2016 $ 779 $ (226 ) Balance at January 1, 2015 $ 776 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income (19 ) — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2015 $ 757 $ (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. 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 September 30, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at September 30, 2016 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 3,374 $ 3,374 Construction real estate: SEPH commercial land and development — — 1,700 1,700 Remaining commercial — — 861 861 Residential real estate — — 1,941 1,941 Total impaired loans recorded at fair value $ — $ — $ 7,876 $ 7,876 Mortgage servicing rights $ — $ 4,319 $ — $ 4,319 OREO: Commercial real estate — — 3,125 3,125 Construction real estate — — 3,348 3,348 Residential real estate — — 1,254 1,254 Total OREO $ — $ — $ 7,727 $ 7,727 Fair Value Measurements at December 31, 2015 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2015 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 3,698 $ 3,698 Construction real estate: SEPH commercial land and development — — 2,044 2,044 Remaining commercial — — 1,872 1,872 Residential real estate — — 1,882 1,882 Total impaired loans recorded at fair value $ — $ — $ 9,496 $ 9,496 Mortgage servicing rights $ — $ 1,867 $ — $ 1,867 OREO: Commercial real estate — — 2,796 2,796 Construction real estate — — 3,387 3,387 Residential real estate — — 2,332 2,332 Total OREO $ — $ — $ 8,515 $ 8,515 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. September 30, 2016 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 8,918 $ 3,929 $ 1,042 $ 7,876 Remaining impaired loans 69,080 18,272 3,190 65,890 Total impaired loans $ 77,998 $ 22,201 $ 4,232 $ 73,766 December 31, 2015 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 11,783 $ 10,512 $ 2,287 $ 9,496 Remaining impaired loans 68,881 18,193 1,904 66,977 Total impaired loans $ 80,664 $ 28,705 $ 4,191 $ 76,473 The income (expense) from credit adjustments related to impaired loans carried at fair value during the three months ended September 30, 2016 and 2015 was $2.9 million and $(0.1) million , respectively. The income (expense) of credit adjustments related to impaired loans carried at fair value during the nine months ended September 30, 2016 and 2015 was $1.9 million and $(1.8) million , respectively. MSRs totaled $8.7 million at September 30, 2016 . Of this $8.7 million MSR carrying balance, $4.3 million was recorded at fair value and included a valuation allowance of $1.1 million . The remaining $4.4 million was recorded at cost, as the fair value of the MSRs exceeded cost at September 30, 2016 . At December 31, 2015 , MSRs totaled $9.0 million . Of this $9.0 million MSR carrying balance, $1.9 million was recorded at fair value and included a valuation allowance of $0.5 million . The remaining $7.1 million was recorded at cost, as the fair value exceeded cost at December 31, 2015 . The (expense) income related to MSRs carried at fair value during the three-month periods ended September 30, 2016 and 2015 was $(360,000) and $211,000 , respectively. The (expense) income related to MSRs carried at fair value during the nine-month periods ended September 30, 2016 and 2015 was $(569,000) and $182,000 , respectively. Total OREO held by Park at September 30, 2016 and December 31, 2015 was $14.9 million and $18.7 million , respectively. Approximately 52% of OREO held by Park at September 30, 2016 and 46% at December 31, 2015 was carried at fair value due to fair value adjustments made subsequent to the initial OREO measurement. At September 30, 2016 and December 31, 2015 , OREO held at fair value, less estimated selling costs, amounted to $7.7 million and $8.5 million , respectively. The net expense related to OREO fair value adjustments was $0.2 million and $0.7 million for the three -month periods ended September 30, 2016 and 2015 , respectively, and $0.6 million and $1.3 million for the nine-month periods ended September 30, 2016 and 2015 , 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 September 30, 2016 and December 31, 2015 : September 30, 2016 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 3,374 Sales comparison approach Adj to comparables 0.0% - 90.0% (21.9%) Income approach Capitalization rate 7.0% - 11.0% (10.1%) Cost approach Accumulated depreciation 17.0% - 50.0% (38.2%) Construction real estate: SEPH commercial land and development $ 1,700 Sales comparison approach Adj to comparables 5.0% - 40.0% (22.5%) Remaining commercial $ 861 Sales comparison approach Adj to comparables 0.0% - 15.6% (1.6%) Bulk sale approach Discount rate 10.0% (10.0%) Residential real estate $ 1,941 Sales comparison approach Adj to comparables 0.0% - 110.0% (15.4%) Income approach Capitalization rate 10.0% (10.0%) Cost approach Accumulated depreciation 50.0% (50.0%) Other real estate owned: Commercial real estate $ 3,125 Sales comparison approach Adj to comparables 0.0% - 69.0% (23.0%) Income approach Capitalization rate 9.5% - 14.0% (9.9%) Construction real estate $ 3,348 Sales comparison approach Adj to comparables 0.0% - 85.0% (27.4%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 1,254 Sales comparison approach Adj to comparables 2.8% - 61.8% (30.2%) Balance at December 31, 2015 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 3,698 Sales comparison approach Adj to comparables 0.0% - 45.9% (20.3%) Income approach Capitalization rate 7.0% - 13.3% (9.5%) Cost approach Accumulated depreciation 50.0% (50.0%) Construction real estate: SEPH commercial land and development $ 2,044 Sales comparison approach Adj to comparables 5.0% - 40.0% (22.1%) Bulk sale approach Discount rate 10.7% (10.7%) Remaining commercial $ 1,872 Sales comparison approach Adj to comparables 0.0% - 25.3% (1.0%) Bulk sale approach Discount rate 10.0% - 10.7% (10.0%) Residential real estate $ 1,882 Sales comparison approach Adj to comparables 0.0% - 96.7% (12.5%) Income approach Capitalization rate 3.8% - 10.1% (9.1%) Cost approach Accumulated depreciation 33.3% - 50.0% (43.4%) Other real estate owned: Commercial real estate $ 2,796 Sales comparison approach Adj to comparables 2.0% - 71.0% (26.9%) Income approach Capitalization rate 9.5% (9.5%) Construction real estate $ 3,387 Sales comparison approach Adj to comparables 0.0% - 85.0% (24.3%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 2,332 Sales comparison approach Adj to comparables 0.1% - 61.8% (23.0%) 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. FHLB Stock and FRB Stock: These assets are carried at their respective redemption values as it is not practicable to calculate their fair values. 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 debentures and notes: Fair values for subordinated debentures and 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 September 30, 2016 and December 31, 2015 , was as follows: September 30, 2016 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 239,998 $ 239,998 $ — $ — $ 239,998 Investment securities 1,419,944 2,028 1,422,580 779 1,425,387 Accrued interest receivable - securities 3,376 — 3,376 — 3,376 Accrued interest receivable - loans 14,575 — — 14,575 14,575 Loans held for sale 15,204 — 15,204 — 15,204 Mortgage IRLCs 301 — 301 — 301 Impaired loans carried at fair value 7,876 — — 7,876 7,876 Other loans, net 5,110,061 — — 5,090,488 5,090,488 Loans receivable, net $ 5,133,442 $ — $ 15,505 $ 5,098,364 $ 5,113,869 Financial liabilities: Noninterest bearing checking accounts $ 1,429,024 $ 1,429,024 $ — $ — $ 1,429,024 Interest bearing transactions accounts 1,227,995 1,227,995 — — 1,227,995 Savings accounts 1,716,951 1,716,951 — — 1,716,951 Time deposits 1,140,288 — 1,145,680 — 1,145,680 Other 5,401 5,401 — — 5,401 Total deposits $ 5,519,659 $ 4,379,371 $ 1,145,680 $ — $ 5,525,051 Short-term borrowings $ 218,214 $ — $ 218,214 $ — $ 218,214 Long-term debt 742,723 — 777,696 — 777,696 Subordinated debentures/notes 45,000 — 40,964 — 40,964 Accrued interest payable – deposits 977 75 902 — 977 Accrued interest payable – debt/borrowings 1,328 — 1,327 — 1,327 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226 December 31, 2015 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 149,459 $ 149,459 $ — $ — $ 149,459 Investment securities 1,585,568 1,941 1,584,984 769 1,587,694 Accrued interest receivable - securities 4,436 — 4,436 — 4,436 Accrued interest receivable - loans 14,239 — — 14,239 14,239 Loans held for sale 7,306 — 7,306 — 7,306 Mortgage IRLCs 165 — 165 — 165 Impaired loans carried at fair value 9,496 — — 9,496 9,496 Other loans, net 4,994,624 — — 4,997,318 4,997,318 Loans receivable, net $ 5,011,591 $ — $ 7,471 $ 5,006,814 $ 5,014,285 Financial liabilities: Noninterest bearing checking accounts $ 1,404,032 $ 1,404,032 $ — $ — $ 1,404,032 Interest bearing transactions accounts 1,107,200 1,107,200 — — 1,107,200 Savings accounts 1,544,708 1,544,708 — — 1,544,708 Time deposits 1,290,412 — 1,295,329 — 1,295,329 Other 1,290 1,290 — — 1,290 Total deposits $ 5,347,642 $ 4,057,230 $ 1,295,329 $ — $ 5,352,559 Short-term borrowings $ 394,242 $ — $ 394,242 $ — $ 394,242 Long-term debt 738,105 — 771,420 — 771,420 Subordinated debentures/notes 45,000 — 41,596 — 41,596 Accrued interest payable – deposits 987 66 921 — 987 Accrued interest payable – debt/borrowings 1,351 4 1,347 — 1,351 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226

Other Comprehensive Income (Los

Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) (Notes)	9 Months Ended
	Sep. 30, 2016
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 and nine -month periods ended September 30, 2016 and 2015 : (in thousands) Changes in pension plan assets and benefit obligations Unrealized gains and losses on available for sale securities Total Beginning balance at July 1, 2016 $ (15,351 ) $ 15,740 $ 389 Other comprehensive loss before reclassifications — (2,182 ) (2,182 ) Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive loss — (2,182 ) (2,182 ) Ending balance at September 30, 2016 $ (15,351 ) $ 13,558 $ (1,793 ) Beginning balance at July 1, 2015 $ (14,865 ) $ 885 $ (13,980 ) Other comprehensive income before reclassifications — 6,551 6,551 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 6,551 6,551 Ending balance at September 30, 2015 $ (14,865 ) $ 7,436 $ (7,429 ) (in thousands) Changes in pension plan assets and benefit obligations Unrealized gains and losses on available for sale securities Total Beginning balance at January 1, 2016 $ (15,351 ) $ (292 ) $ (15,643 ) Other comprehensive income before reclassifications — 13,850 13,850 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 13,850 13,850 Ending balance at September 30, 2016 $ (15,351 ) $ 13,558 $ (1,793 ) Beginning balance at January 1, 2015 $ (14,865 ) $ 1,257 $ (13,608 ) Other comprehensive income before reclassifications — 6,179 6,179 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 6,179 6,179 Ending balance at September 30, 2015 $ (14,865 ) $ 7,436 $ (7,429 ) During the three-month and nine-month periods ended September 30, 2016 and 2015, there were no reclassifications out of accumulated other comprehensive loss.

Investment in Qualified Afforda

Investment in Qualified Affordable Housing (Notes)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 and December 31, 2015. (in thousands) September 30, 2016 December 31, 2015 Affordable housing tax credit investments $ 54,757 $ 51,247 Unfunded commitments 24,756 20,311 During the three months ended September 30, 2016 and 2015, Park recognized amortization expense of $1.8 million and $1.7 million , respectively, and during the nine months ended September 30, 2016 and 2015, Park recognized amortization expense of $5.5 million and $5.2 million , respectively, which was included within the provision for income taxes. Additionally, during each of the three months ended September 30, 2016 and 2015, Park recognized tax credits and other benefits from its affordable housing tax credit investments of $2.3 million , and during the nine months ended September 30, 2016 and 2015, recognized tax credits and other benefits from its affordable housing tax credit investments of $7.0 million and $6.8 million , respectively.

Repurchase Agreement Borrowings

Repurchase Agreement Borrowings (Notes)	9 Months Ended
	Sep. 30, 2016
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 consist of customer accounts and securities which are pledged on an individual security basis. At September 30, 2016 and December 31, 2015 , Park's repurchase agreement borrowings totaled $518 million and $554 million , respectively. At both September 30, 2016 and December 31, 2015 , $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 $572 million and $622 million at September 30, 2016 and December 31, 2015 , respectively. Declines in the value of the collateral would require Park to pledge additional securities. As of September 30, 2016 and December 31, 2015 , Park had $465 million and $583 million , respectively, of available unpledged securities. The following table presents the carrying value of Park's repurchase agreements by remaining contractual maturity at September 30, 2016 and December 31, 2015 : September 30, 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 $ 217,110 $ — $ — $ 301,104 $ 518,214 December 31, 2015 (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 $ 247,618 $ 2,239 $ — $ 304,385 $ 554,242 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, $6.0 million and $9.8 million remained unamortized as of September 30, 2016 and December 31, 2015 , respectively.

Contingent Liabilities (Notes)

Contingent Liabilities (Notes)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016, the Company had accrued charges of approximately $2.3 million for legal contingencies related to various legal and other adversary proceedings.

Subsequent Events (Notes)

Subsequent Events (Notes)	9 Months Ended
	Sep. 30, 2016
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Events On October 20, 2016, Park prepaid $50 million of FHLB advances, incurring a $5.6 million prepayment penalty which will be reflected as an expense in the fourth quarter of 2016. These advances had an interest rate of 3.15% and a maturity date of November 13, 2023. The advances prepaid had an expected annual expense of $1.575 million for the year ended December 31, 2017. The prepayment was made using excess cash, which averaged $220.5 million for the nine months ended September 30, 2016. Excess cash is shown as money market instruments on the consolidated condensed balance sheets and is invested overnight with the Federal Reserve at the overnight federal funds sold rate. For the nine months ended September 30, 2016, Park earned 0.51% on these money market instruments.

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 and December 31, 2015 was as follows: September 30, 2016 December 31, 2015 (In thousands) Loan Balance Accrued Interest Receivable Recorded Investment Loan Balance Accrued Interest Receivable Recorded Investment Commercial, financial and agricultural * $ 958,029 $ 3,786 $ 961,815 $ 955,727 $ 3,437 $ 959,164 Commercial real estate * 1,141,002 4,268 1,145,270 1,113,603 4,009 1,117,612 Construction real estate: SEPH commercial land and development 1,700 — 1,700 2,044 — 2,044 Remaining commercial 136,883 316 137,199 128,046 321 128,367 Mortgage 41,848 88 41,936 36,722 75 36,797 Installment 5,544 18 5,562 6,533 21 6,554 Residential real estate: Commercial 408,372 925 409,297 410,571 1,014 411,585 Mortgage 1,189,232 1,382 1,190,614 1,210,819 1,469 1,212,288 HELOC 212,968 788 213,756 211,415 769 212,184 Installment 19,481 65 19,546 22,638 78 22,716 Consumer 1,068,343 2,884 1,071,227 967,111 3,032 970,143 Leases 3,602 55 3,657 2,856 14 2,870 Total loans $ 5,187,004 $ 14,575 $ 5,201,579 $ 5,068,085 $ 14,239 $ 5,082,324 * Included within 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 September 30, 2016 and December 31, 2015 : September 30, 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 $ 22,951 $ 953 $ — $ 23,904 Commercial real estate 21,760 4,305 — 26,065 Construction real estate: SEPH commercial land and development 1,700 — — 1,700 Remaining commercial 2,257 420 — 2,677 Mortgage — 105 — 105 Installment 46 96 — 142 Residential real estate: Commercial 23,700 — — 23,700 Mortgage 19,768 9,570 750 30,088 HELOC 2,111 629 51 2,791 Installment 589 609 25 1,223 Consumer 2,950 716 897 4,563 Total loans $ 97,832 $ 17,403 $ 1,723 $ 116,958 December 31, 2015 (In thousands) Nonaccrual Loans Accruing Troubled Debt Restructurings Loans Past Due 90 Days or More and Accruing Total Nonperforming Loans Commercial, financial and agricultural $ 21,676 $ 8,947 $ — $ 30,623 Commercial real estate 15,268 2,757 — 18,025 Construction real estate: SEPH commercial land and development 2,044 — — 2,044 Remaining commercial 4,162 514 — 4,676 Mortgage 7 110 — 117 Installment 64 114 — 178 Residential real estate: Commercial 25,063 261 — 25,324 Mortgage 20,378 10,143 851 31,372 HELOC 1,749 873 27 2,649 Installment 1,657 635 4 2,296 Consumer 3,819 734 1,093 5,646 Total loans $ 95,887 $ 25,088 $ 1,975 $ 122,950
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 September 30, 2016 and December 31, 2015 . September 30, 2016 December 31, 2015 (In thousands) Nonaccrual and Accruing Troubled Debt Restructurings Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Nonaccrual and Accruing Troubled Debt Restructurings Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Commercial, financial and agricultural $ 23,904 $ 23,856 $ 48 $ 30,623 $ 30,595 $ 28 Commercial real estate 26,065 26,065 — 18,025 18,025 — Construction real estate: SEPH commercial land and development 1,700 1,700 — 2,044 2,044 — Remaining commercial 2,677 2,677 — 4,676 4,676 — Mortgage 105 — 105 117 — 117 Installment 142 — 142 178 — 178 Residential real estate: Commercial 23,700 23,700 — 25,324 25,324 — Mortgage 29,338 — 29,338 30,521 — 30,521 HELOC 2,740 — 2,740 2,622 — 2,622 Installment 1,198 — 1,198 2,292 — 2,292 Consumer 3,666 — 3,666 4,553 — 4,553 Total loans $ 115,235 $ 77,998 $ 37,237 $ 120,975 $ 80,664 $ 40,311
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 September 30, 2016 and December 31, 2015 . September 30, 2016 December 31, 2015 (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 $ 27,346 $ 13,225 $ — $ 32,583 $ 18,763 $ — Commercial real estate 23,558 23,294 — 15,138 14,916 — Construction real estate: SEPH commercial land and development 3,268 1,700 — 10,834 2,044 — Remaining commercial 1,882 1,834 — 2,506 1,531 — Residential real estate: Commercial 22,671 21,975 — 23,798 23,480 — With an allowance recorded: Commercial, financial and agricultural 14,777 10,631 3,191 16,155 11,832 1,904 Commercial real estate 2,771 2,771 525 3,195 3,109 381 Construction real estate: Remaining commercial 2,112 843 61 3,145 3,145 1,356 Residential real estate: Commercial 1,803 1,725 455 1,951 1,844 550 Consumer — — — — — — Total $ 100,188 $ 77,998 $ 4,232 $ 109,305 $ 80,664 $ 4,191
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 and nine months ended September 30, 2016 and September 30, 2015 : Three Months Ended Three Months Ended (In thousands) Recorded Investment as of September 30, 2016 Average Recorded Investment Interest Income Recognized Recorded Investment as of September 30, 2015 Average Recorded Investment Interest Income Recognized Commercial, financial and agricultural $ 23,856 $ 26,679 $ 194 $ 19,154 $ 19,793 $ 35 Commercial real estate 26,065 27,982 243 17,662 17,453 132 Construction real estate: SEPH commercial land and development 1,700 1,700 — 2,045 2,068 — Remaining commercial 2,677 3,943 16 5,993 6,059 2 Residential real estate: Commercial 23,700 24,422 314 24,370 24,560 240 Consumer — 10 — — — — Total $ 77,998 $ 84,736 $ 767 $ 69,224 $ 69,933 $ 409 Nine Months Ended Nine Months Ended (In thousands) Recorded investment as of September 30, 2016 Average recorded investment Interest income recognized Recorded investment as of September 30, 2015 Average recorded investment Interest income recognized Commercial, financial and agricultural $ 23,856 $ 28,217 $ 740 $ 19,154 $ 19,056 $ 306 Commercial real estate 26,065 22,108 608 17,662 17,857 418 Construction real estate: SEPH commercial land and development 1,700 1,906 — 2,045 2,073 8 Remaining commercial 2,677 4,338 44 5,993 5,771 13 Residential real estate: Commercial 23,700 24,618 2,619 24,370 24,784 768 Consumer — 4 — — — — Total $ 77,998 $ 81,191 $ 4,011 $ 69,224 $ 69,541 $ 1,513
Aging Of Recorded Investment In Past Due Loans	The following tables present the aging of the recorded investment in past due loans as of September 30, 2016 and December 31, 2015 by class of loan. September 30, 2016 (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 $ 1,368 $ 4,071 $ 5,439 $ 956,376 $ 961,815 Commercial real estate 448 2,724 3,172 1,142,098 1,145,270 Construction real estate: SEPH commercial land and development — 1,700 1,700 — 1,700 Remaining commercial — 79 79 137,120 137,199 Mortgage 45 — 45 41,891 41,936 Installment 93 — 93 5,469 5,562 Residential real estate: Commercial 120 3,878 3,998 405,299 409,297 Mortgage 8,753 9,637 18,390 1,172,224 1,190,614 HELOC 277 1,190 1,467 212,289 213,756 Installment 293 882 1,175 18,371 19,546 Consumer 10,046 1,955 12,001 1,059,226 1,071,227 Leases — — — 3,657 3,657 Total loans $ 21,443 $ 26,116 $ 47,559 $ 5,154,020 $ 5,201,579 (1) Includes $1.7 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $73.4 million of nonaccrual loans which are current in regards to contractual principal and interest payments. December 31, 2015 (in thousands) Accruing Loans Past Due 30-89 Days Past Due Total Past Due Total Current (2) Total Recorded Investment Commercial, financial and agricultural $ 670 $ 7,536 $ 8,206 $ 950,958 $ 959,164 Commercial real estate 142 530 672 1,116,940 1,117,612 Construction real estate: SEPH commercial land and development — 2,044 2,044 — 2,044 Remaining commercial 165 84 249 128,118 128,367 Mortgage 63 7 70 36,727 36,797 Installment 200 46 246 6,308 6,554 Residential real estate: Commercial 325 19,521 19,846 391,739 411,585 Mortgage 10,569 8,735 19,304 1,192,984 1,212,288 HELOC 487 186 673 211,511 212,184 Installment 426 318 744 21,972 22,716 Consumer 11,458 3,376 14,834 955,309 970,143 Leases — — — 2,870 2,870 Total loans $ 24,505 $ 42,383 $ 66,888 $ 5,015,436 $ 5,082,324 (1) Includes $2.0 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans. (2) Includes $55.5 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 September 30, 2016 and December 31, 2015 for all commercial loans: September 30, 2016 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 5,339 $ 25 $ 23,904 $ 932,547 $ 961,815 Commercial real estate * 6,917 434 26,065 1,111,854 1,145,270 Construction real estate: SEPH commercial land and development — — 1,700 — 1,700 Remaining commercial 504 119 2,677 133,899 137,199 Residential real estate: Commercial 989 177 23,700 384,431 409,297 Leases — — — 3,657 3,657 Total commercial loans $ 13,749 $ 755 $ 78,046 $ 2,566,388 $ 2,658,938 * Included within 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, 2015 (In thousands) 5 Rated 6 Rated Nonaccrual and Accruing Troubled Debt Restructurings Pass-Rated Recorded Investment Commercial, financial and agricultural * $ 4,392 $ 347 $ 30,623 $ 923,802 $ 959,164 Commercial real estate * 14,880 3,417 18,025 1,081,290 1,117,612 Construction real estate: SEPH commercial land and development — — 2,044 — 2,044 Remaining commercial 2,151 122 4,676 121,418 128,367 Residential real estate: Commercial 3,280 386 25,324 382,595 411,585 Leases — — — 2,870 2,870 Total Commercial Loans $ 24,703 $ 4,272 $ 80,692 $ 2,511,975 $ 2,621,642
TDR Number Of Contracts Modified And Recorded Investment	The following tables detail the number of contracts modified as TDRs during the three -month and nine -month periods ended September 30, 2016 and September 30, 2015 , as well as the recorded investment of these contracts at September 30, 2016 and September 30, 2015 . 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 12 $ 152 $ 6,451 $ 6,603 Commercial real estate 6 — 1,777 1,777 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 1 — 947 947 Mortgage — — — — Installment — — — — Residential real estate: Commercial 4 — 225 225 Mortgage 14 — 1,173 1,173 HELOC 2 — 91 91 Installment 2 33 4 37 Consumer 74 61 1,508 1,569 Total loans 115 $ 246 $ 12,176 $ 12,422 Three Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 8 $ 245 $ 3,818 $ 4,063 Commercial real estate 5 — 1,512 1,512 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 1 196 — 196 Mortgage — — — — Installment — — — — Residential real estate: Commercial 1 200 — 200 Mortgage 9 — 748 748 HELOC 5 16 31 47 Installment 1 — 4 4 Consumer 61 51 412 463 Total loans 91 $ 708 $ 6,525 $ 7,233 Of those loans which were modified and determined to be a TDR during the three -month period ended September 30, 2016 , $7.6 million were on nonaccrual status as of December 31, 2015 . Of those loans which were modified and determined to be a TDR during the three -month period ended September 30, 2015 , $160,000 were on nonaccrual status as of December 31, 2014 . Nine Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 29 $ 102 $ 7,242 $ 7,344 Commercial real estate 10 2,812 2,306 5,118 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 2 — 1,144 1,144 Mortgage — — — — Installment 1 — 9 9 Residential real estate: Commercial 7 — 918 918 Mortgage 23 96 1,713 1,809 HELOC 10 17 184 201 Installment 4 72 7 79 Consumer 223 115 2,042 2,157 Total loans 309 $ 3,214 $ 15,565 $ 18,779 Nine Months Ended (In thousands) Number of Contracts Accruing Nonaccrual Total Recorded Investment Commercial, financial and agricultural 33 $ 1,014 $ 5,168 $ 6,182 Commercial real estate 11 — 2,525 2,525 Construction real estate: SEPH commercial land and development — — — — Remaining commercial 1 196 — 196 Mortgage 1 — 20 20 Installment — — — — Residential real estate: Commercial 10 200 1,144 1,344 Mortgage 24 325 1,199 1,524 HELOC 21 242 105 347 Installment 4 — 36 36 Consumer 217 71 748 819 Total loans 322 $ 2,048 $ 10,945 $ 12,993 Of those loans which were modified and determined to be a TDR during the nine -month period ended September 30, 2016 , $8.5 million were on nonaccrual status as of December 31, 2015 . Of those loans which were modified and determined to be a TDR during the nine -month period ended September 30, 2015 , $1.0 million were on nonaccrual status as of December 31, 2014 .
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 and nine -month periods ended September 30, 2016 and September 30, 2015 , 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 5 $ 129 7 $ 821 Commercial real estate 4 808 — — Construction real estate: SEPH commercial land and development — — — — Remaining commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 3 679 1 603 Mortgage 13 1,687 13 902 HELOC — — — — Installment 2 7 1 28 Consumer 53 559 50 310 Leases — — — — Total loans 80 $ 3,869 72 $ 2,664 Of the $3.9 million in modified TDRs which defaulted during the three months ended September 30, 2016 , $14,000 were accruing loans and $3.9 million were nonaccrual loans. Of the $2.7 million in modified TDRs which defaulted during the three months ended September 30, 2015 , there were $61,000 accruing loans and $2.6 million were nonaccrual loans. Nine Months Ended Nine Months Ended (In thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial, financial and agricultural 5 $ 129 7 $ 821 Commercial real estate 4 808 — — Construction real estate: SEPH commercial land and development — — — — Remaining commercial — — — — Mortgage — — — — Installment — — — — Residential real estate: Commercial 4 709 1 603 Mortgage 13 1,687 13 902 HELOC — — — — Installment 2 7 1 28 Consumer 60 611 55 356 Leases — — — — Total loans 88 $ 3,951 77 $ 2,710 Of the $4.0 million in modified TDRs which defaulted during the nine months ended September 30, 2016 , $14,000 were accruing loans and $3.9 million were nonaccrual loans. Of the $2.7 million in modified TDRs which defaulted during the nine months ended September 30, 2015 , $61,000 were accruing loans and $2.6 million were nonaccrual loans.

Allowance For Loan Losses (Tabl

Allowance For Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2016
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 and nine months ended September 30, 2016 and September 30, 2015 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 $ 16,478 $ 9,203 $ 8,256 $ 13,180 $ 11,581 $ 1 $ 58,699 Charge-offs 457 4 1,300 293 2,086 — 4,140 Recoveries 246 973 3,659 348 1,142 1 6,369 Net charge-offs/(recoveries) 211 (969 ) (2,359 ) (55 ) 944 (1 ) (2,229 ) Provision/(recovery) 3 401 (5,257 ) (1,907 ) (604 ) (2 ) (7,366 ) Ending balance $ 16,270 $ 10,573 $ 5,358 $ 11,328 $ 10,033 $ — $ 53,562 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 $ 12,124 $ 9,467 $ 8,670 $ 15,268 $ 11,898 $ — $ 57,427 Charge-offs 829 46 4 575 2,262 — 3,716 Recoveries 415 386 274 461 832 — 2,368 Net charge-offs/(recoveries) 414 (340 ) (270 ) 114 1,430 — 1,348 Provision/(recovery) 1,549 (352 ) 50 (132 ) 1,289 — 2,404 Ending balance $ 13,259 $ 9,455 $ 8,990 $ 15,022 $ 11,757 $ — $ 58,483 Nine 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 1,601 82 1,318 1,776 7,183 — 11,960 Recoveries 889 3,005 4,708 1,226 3,017 2 12,847 Net charge-offs/(recoveries) 712 (2,923 ) (3,390 ) 550 4,166 (2 ) (887 ) Provision/(recovery) 3,288 (1,547 ) (6,596 ) (1,636 ) 2,675 (3 ) (3,819 ) Ending balance $ 16,270 $ 10,573 $ 5,358 $ 11,328 $ 10,033 $ — $ 53,562 Nine 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 $ 10,719 $ 8,808 $ 8,652 $ 14,772 $ 11,401 $ — $ 54,352 Charge-offs 1,680 329 41 1,732 6,379 — 10,161 Recoveries 987 2,188 1,238 1,808 2,420 3 8,644 Net charge-offs/(recoveries) 693 (1,859 ) (1,197 ) (76 ) 3,959 (3 ) 1,517 Provision/(recovery) 3,233 (1,212 ) (859 ) 174 4,315 (3 ) 5,648 Ending balance $ 13,259 $ 9,455 $ 8,990 $ 15,022 $ 11,757 $ — $ 58,483
Composition Of The Allowance For Loan Losses	The composition of the allowance for loan losses at September 30, 2016 and December 31, 2015 was as follows: September 30, 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 $ 3,191 $ 525 $ 61 $ 455 $ — $ — $ 4,232 Collectively evaluated for impairment 13,079 10,048 5,297 10,873 10,033 — 49,330 Total ending allowance balance $ 16,270 $ 10,573 $ 5,358 $ 11,328 $ 10,033 $ — $ 53,562 Loan balance: Loans individually evaluated for impairment $ 23,852 $ 26,057 $ 4,377 $ 23,700 $ — $ — $ 77,986 Loans collectively evaluated for impairment 934,177 1,114,945 181,599 1,806,352 1,068,343 3,602 5,109,018 Total ending loan balance $ 958,029 $ 1,141,002 $ 185,976 $ 1,830,052 $ 1,068,343 $ 3,602 $ 5,187,004 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 13.38 % 2.01 % 1.39 % 1.92 % — % — % 5.43 % Loans collectively evaluated for impairment 1.40 % 0.90 % 2.92 % 0.60 % 0.94 % — % 0.97 % Total 1.70 % 0.93 % 2.88 % 0.62 % 0.94 % — % 1.03 % Recorded investment: Loans individually evaluated for impairment $ 23,856 $ 26,065 $ 4,377 $ 23,700 $ — $ — $ 77,998 Loans collectively evaluated for impairment 937,959 1,119,205 182,020 1,809,513 1,071,227 3,657 5,123,581 Total ending recorded investment $ 961,815 $ 1,145,270 $ 186,397 $ 1,833,213 $ 1,071,227 $ 3,657 $ 5,201,579 December 31, 2015 (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 $ 1,904 $ 381 $ 1,356 $ 550 $ — $ — $ 4,191 Collectively evaluated for impairment 11,790 8,816 7,208 12,964 11,524 1 52,303 Total ending allowance balance $ 13,694 $ 9,197 $ 8,564 $ 13,514 $ 11,524 $ 1 $ 56,494 Loan balance: Loans individually evaluated for impairment $ 30,545 $ 18,015 $ 6,716 $ 25,323 $ — $ — $ 80,599 Loans collectively evaluated for impairment 925,182 1,095,588 166,629 1,830,120 967,111 2,856 4,987,486 Total ending loan balance $ 955,727 $ 1,113,603 $ 173,345 $ 1,855,443 $ 967,111 $ 2,856 $ 5,068,085 Allowance for loan losses as a percentage of loan balance: Loans individually evaluated for impairment 6.23 % 2.11 % 20.19 % 2.17 % — % — % 5.20 % Loans collectively evaluated for impairment 1.27 % 0.80 % 4.33 % 0.71 % 1.19 % 0.04 % 1.05 % Total 1.43 % 0.83 % 4.94 % 0.73 % 1.19 % 0.04 % 1.11 % Recorded investment: Loans individually evaluated for impairment $ 30,595 $ 18,025 $ 6,720 $ 25,324 $ — $ — $ 80,664 Loans collectively evaluated for impairment 928,569 1,099,587 167,042 1,833,449 970,143 2,870 5,001,660 Total ending recorded investment $ 959,164 $ 1,117,612 $ 173,762 $ 1,858,773 $ 970,143 $ 2,870 $ 5,082,324

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2016
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 amount of foreclosed properties held at September 30, 2016 and December 31, 2015 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) September 30, 2016 December 31, 2015 OREO: Commercial real estate $ 8,123 $ 8,333 Construction real estate 4,668 7,259 Residential real estate 2,150 3,059 Total OREO $ 14,941 $ 18,651 Loans in process of foreclosure: Residential real estate $ 3,341 $ 2,021

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2016
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 and nine months ended September 30, 2016 and 2015 . Three Months Ended Nine Months Ended (In thousands, except share and per common share data) 2016 2015 2016 2015 Numerator: Net income available to common shareholders $ 27,449 $ 20,040 $ 66,133 $ 60,123 Denominator: Weighted-average common shares outstanding 15,330,791 15,361,087 15,330,802 15,370,380 Effect of dilutive performance-based restricted stock units 68,916 40,721 71,023 41,131 Weighted-average common shares outstanding adjusted for the effect of dilutive performance-based restricted stock units 15,399,707 15,401,808 15,401,825 15,411,511 Earnings per common share: Basic earnings per common share $ 1.79 $ 1.30 $ 4.31 $ 3.91 Diluted earnings per common share $ 1.78 $ 1.30 $ 4.29 $ 3.90

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Schedule Of Operating Results By Segment	Operating Results for the three months ended September 30, 2016 (In thousands) PNB GFSC SEPH All Other Total Net interest income $ 57,033 $ 1,472 $ 8 $ 20 $ 58,533 Recovery of loan losses (3,345 ) (313 ) (3,708 ) — (7,366 ) Other income (loss) 19,279 (1 ) 1,126 131 20,535 Other expense 42,327 800 1,789 1,840 46,756 Income (loss) before income taxes $ 37,330 $ 984 $ 3,053 $ (1,689 ) $ 39,678 Federal income taxes (benefit) 11,839 344 1,070 (1,024 ) 12,229 Net income (loss) $ 25,491 $ 640 $ 1,983 $ (665 ) $ 27,449 Assets (as of September 30, 2016) $ 7,287,923 $ 32,759 $ 36,938 $ 6,472 $ 7,364,092 Operating Results for the three months ended September 30, 2015 (In thousands) PNB GFSC SEPH All Other Total Net interest income $ 55,972 $ 1,643 $ 65 $ 35 $ 57,715 Provision for (recovery of) loan losses 2,587 282 (465 ) — 2,404 Other income 19,699 1 347 144 20,191 Other expense 43,144 726 1,456 2,103 47,429 Income (loss) before income taxes $ 29,940 $ 636 $ (579 ) $ (1,924 ) $ 28,073 Federal income taxes (benefit) 9,233 242 (203 ) (1,239 ) 8,033 Net income (loss) $ 20,707 $ 394 $ (376 ) $ (685 ) $ 20,040 Assets (as of September 30, 2015) $ 7,216,773 $ 36,517 $ 37,938 $ 9,112 $ 7,300,340 Operating Results for the nine months ended September 30, 2016 (in thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 170,194 $ 4,416 $ 1,240 $ (13 ) $ 175,837 (Recovery of) provision for loan losses (450 ) 1,658 (5,027 ) — (3,819 ) Other income (loss) 55,010 (1 ) 1,272 379 56,660 Other expense 126,418 3,632 4,525 7,386 141,961 Income (loss) before income taxes $ 99,236 $ (875 ) $ 3,014 $ (7,020 ) $ 94,355 Federal income taxes (benefit) 30,923 (305 ) 1,056 (3,452 ) 28,222 Net income (loss) $ 68,313 $ (570 ) $ 1,958 $ (3,568 ) $ 66,133 Operating Results for the nine months ended September 30, 2015 (in thousands) PNB GFSC SEPH All Other Total Net interest income (expense) $ 164,559 $ 5,014 $ (37 ) $ 229 $ 169,765 Provision for (recovery of) loan losses 7,329 1,086 (2,767 ) — 5,648 Other income 56,431 2 1,434 388 58,255 Other expense 124,662 2,264 4,939 5,951 137,816 Income (loss) before income taxes $ 88,999 $ 1,666 $ (775 ) $ (5,334 ) $ 84,556 Federal income taxes (benefit) 27,800 584 (271 ) (3,680 ) 24,433 Net income (loss) $ 61,199 $ 1,082 $ (504 ) $ (1,654 ) $ 60,123

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule Of Investment Securities	Investment securities at September 30, 2016 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 270,000 $ — $ 855 $ 269,145 U.S. Government sponsored entities' asset-backed securities 932,869 20,157 129 952,897 Other equity securities 1,119 1,688 — 2,807 Total $ 1,203,988 $ 21,845 $ 984 $ 1,224,849 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value U.S. Government sponsored entities' asset-backed securities $ 81,812 $ 1,885 $ 19 $ 83,678 Obligations of states and political subdivisions 113,283 3,777 $ 200 116,860 Total $ 195,095 $ 5,662 $ 219 $ 200,538 Investment securities at December 31, 2015 , were as follows: Securities Available-for-Sale (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 527,605 $ — $ 5,542 $ 522,063 U.S. Government sponsored entities' asset-backed securities 907,989 8,776 5,272 911,493 Other equity securities 1,120 1,590 — 2,710 Total $ 1,436,714 $ 10,366 $ 10,814 $ 1,436,266 Securities Held-to-Maturity (In thousands) Amortized Cost Gross Unrealized Holding Gains Gross Unrealized Holding Losses Estimated Fair Value Obligations of states and political subdivision $ 48,190 $ 734 $ — $ 48,924 U.S. Government sponsored entities' asset-backed securities 101,112 1,526 134 102,504 Total $ 149,302 $ 2,260 $ 134 $ 151,428
Schedule Of Unrealized Loss On Securities	Securities with unrealized losses at September 30, 2016 , were as follows: Unrealized loss position for less than 12 months Unrealized loss position for 12 months or longer Total (In thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 269,145 $ 855 $ — $ — $ 269,145 $ 855 U.S. Government sponsored entities' asset-backed securities 48,885 64 $ 28,993 65 $ 77,878 129 Total $ 318,030 $ 919 $ 28,993 $ 65 $ 347,023 $ 984 Securities Held-to-Maturity U.S. Government sponsored entities' asset-backed securities $ — $ — $ 7,700 $ 19 $ 7,700 $ 19 Obligations of states and political subdivisions 13,259 $ 200 — — $ 13,259 200 Total $ 13,259 $ 200 $ 7,700 $ 19 $ 20,959 $ 219 Securities with unrealized losses at December 31, 2015 , were as follows: Unrealized loss position for less than 12 months Unrealized loss position for 12 months or longer Total (In thousands) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Securities Available-for-Sale Obligations of U.S. Treasury and other U.S. Government sponsored entities $ 326,973 $ 2,117 $ 195,090 $ 3,425 $ 522,063 $ 5,542 U.S. Government sponsored entities' asset-backed securities 384,169 2,776 114,543 2,496 498,712 5,272 Total $ 711,142 $ 4,893 $ 309,633 $ 5,921 $ 1,020,775 $ 10,814 Securities Held-to-Maturity U.S. Government sponsored entities' asset-backed securities $ 5,656 $ 10 $ 7,792 $ 124 $ 13,448 $ 134
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 September 30, 2016 , 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 one through five years $ 270,000 269,145 1.18 % Total $ 270,000 $ 269,145 1.18 % U.S. Government sponsored entities' asset-backed securities: $ 932,869 $ 952,897 2.13 % Securities Held-to-Maturity (In thousands) Amortized cost Fair value Tax equivalent yield Obligations of state and political subdivisions: Due over ten years $ 113,283 $ 116,860 4.35 % Total $ 113,283 $ 116,860 4.35 % U.S. Government sponsored entities' asset-backed securities $ 81,812 $ 83,678 3.31 %

Other Investment Securities (Ta

Other Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2016
Other Investment Securities [Abstract]
Schedule Of Other Investment Securities	Other investment securities consist of stock investments in the Federal Home Loan Bank ("FHLB") and the Federal Reserve Bank ("FRB"). These restricted stock investments are carried at their redemption value. September 30, December 31, 2015 (In thousands) FHLB stock $ 50,086 $ 50,086 FRB stock 8,225 8,225 Total $ 58,311 $ 58,311

Pension Plan (Tables)

Pension Plan (Tables)	9 Months Ended
	Sep. 30, 2016
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 Nine Months Ended (In thousands) 2016 2015 2016 2015 Service cost $ 1,264 $ 1,342 $ 3,792 $ 4,026 Interest cost 1,217 1,174 3,651 3,522 Expected return on plan assets (2,737 ) (2,855 ) (8,211 ) (8,565 ) Amortization of prior service cost — 4 — 12 Recognized net actuarial loss 193 159 579 477 Net periodic benefit income $ (63 ) $ (176 ) $ (189 ) $ (528 )

Loan Servicing (Tables)

Loan Servicing (Tables)	9 Months Ended
	Sep. 30, 2016
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 Nine Months Ended (In thousands) 2016 2015 2016 2015 Mortgage servicing rights: Carrying amount, net, beginning of period $ 8,880 $ 8,561 $ 9,008 $ 8,613 Additions 747 476 1,618 1,283 Amortization (522 ) (436 ) (1,312 ) (1,266 ) Changes in valuation allowance (360 ) 211 (569 ) 182 Carrying amount, net, end of period $ 8,745 $ 8,812 $ 8,745 $ 8,812 Valuation allowance: Beginning of period $ 751 $ 855 $ 542 $ 826 Changes in valuation allowance 360 (211 ) 569 (182 ) End of period $ 1,111 $ 644 $ 1,111 $ 644

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2016
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. September 30, 2016 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 8,918 $ 3,929 $ 1,042 $ 7,876 Remaining impaired loans 69,080 18,272 3,190 65,890 Total impaired loans $ 77,998 $ 22,201 $ 4,232 $ 73,766 December 31, 2015 (In thousands) Recorded Investment Prior Charge-Offs Specific Valuation Allowance Carrying Balance Impaired loans recorded at fair value $ 11,783 $ 10,512 $ 2,287 $ 9,496 Remaining impaired loans 68,881 18,193 1,904 66,977 Total impaired loans $ 80,664 $ 28,705 $ 4,191 $ 76,473
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 September 30, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at September 30, 2016 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 269,145 $ — $ 269,145 U.S. Government sponsored entities’ asset-backed securities — 952,897 — 952,897 Equity securities 2,028 — 779 2,807 Mortgage loans held for sale — 15,204 — 15,204 Mortgage IRLCs — 301 — 301 Liabilities Fair value swap $ — $ — $ 226 $ 226 Fair Value Measurements at December 31, 2015 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2015 Assets Investment securities: Obligations of U.S. Treasury and other U.S. Government sponsored entities $ — $ 522,063 $ — $ 522,063 U.S. Government sponsored entities’ asset-backed securities — 911,493 — 911,493 Equity securities 1,941 — 769 2,710 Mortgage loans held for sale — 7,306 — 7,306 Mortgage IRLCs — 165 — 165 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 and nine months ended September 30, 2016 and 2015 , for financial instruments measured on a recurring basis and classified as Level 3: Level 3 Fair Value Measurements Three months ended September 30, 2016 and 2015 (In thousands) Equity Securities Fair value swap Balance at July 1, 2016 $ 821 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income (42 ) — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2016 $ 779 $ (226 ) Balance at July 1, 2015 $ 744 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income 13 — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2015 $ 757 $ (226 ) Level 3 Fair Value Measurements Nine months ended September 30, 2016 and 2015 (In thousands) Equity Securities Fair value swap Balance at January 1, 2016 $ 769 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income 10 — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2016 $ 779 $ (226 ) Balance at January 1, 2015 $ 776 $ (226 ) Total gains/(losses) Included in earnings – realized — — Included in earnings – unrealized — — Included in other comprehensive income (19 ) — Purchases, sales, issuances and settlements, other — — Re-evaluation of fair value swap — — Balance at September 30, 2015 $ 757 $ (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 September 30, 2016 using: (In thousands) Level 1 Level 2 Level 3 Balance at September 30, 2016 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 3,374 $ 3,374 Construction real estate: SEPH commercial land and development — — 1,700 1,700 Remaining commercial — — 861 861 Residential real estate — — 1,941 1,941 Total impaired loans recorded at fair value $ — $ — $ 7,876 $ 7,876 Mortgage servicing rights $ — $ 4,319 $ — $ 4,319 OREO: Commercial real estate — — 3,125 3,125 Construction real estate — — 3,348 3,348 Residential real estate — — 1,254 1,254 Total OREO $ — $ — $ 7,727 $ 7,727 Fair Value Measurements at December 31, 2015 using: (In thousands) Level 1 Level 2 Level 3 Balance at December 31, 2015 Impaired loans recorded at fair value: Commercial real estate $ — $ — $ 3,698 $ 3,698 Construction real estate: SEPH commercial land and development — — 2,044 2,044 Remaining commercial — — 1,872 1,872 Residential real estate — — 1,882 1,882 Total impaired loans recorded at fair value $ — $ — $ 9,496 $ 9,496 Mortgage servicing rights $ — $ 1,867 $ — $ 1,867 OREO: Commercial real estate — — 2,796 2,796 Construction real estate — — 3,387 3,387 Residential real estate — — 2,332 2,332 Total OREO $ — $ — $ 8,515 $ 8,515
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 September 30, 2016 and December 31, 2015 : September 30, 2016 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 3,374 Sales comparison approach Adj to comparables 0.0% - 90.0% (21.9%) Income approach Capitalization rate 7.0% - 11.0% (10.1%) Cost approach Accumulated depreciation 17.0% - 50.0% (38.2%) Construction real estate: SEPH commercial land and development $ 1,700 Sales comparison approach Adj to comparables 5.0% - 40.0% (22.5%) Remaining commercial $ 861 Sales comparison approach Adj to comparables 0.0% - 15.6% (1.6%) Bulk sale approach Discount rate 10.0% (10.0%) Residential real estate $ 1,941 Sales comparison approach Adj to comparables 0.0% - 110.0% (15.4%) Income approach Capitalization rate 10.0% (10.0%) Cost approach Accumulated depreciation 50.0% (50.0%) Other real estate owned: Commercial real estate $ 3,125 Sales comparison approach Adj to comparables 0.0% - 69.0% (23.0%) Income approach Capitalization rate 9.5% - 14.0% (9.9%) Construction real estate $ 3,348 Sales comparison approach Adj to comparables 0.0% - 85.0% (27.4%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 1,254 Sales comparison approach Adj to comparables 2.8% - 61.8% (30.2%) Balance at December 31, 2015 (In thousands) Fair Value Valuation Technique Unobservable Input(s) Range (Weighted Average) Impaired loans: Commercial real estate $ 3,698 Sales comparison approach Adj to comparables 0.0% - 45.9% (20.3%) Income approach Capitalization rate 7.0% - 13.3% (9.5%) Cost approach Accumulated depreciation 50.0% (50.0%) Construction real estate: SEPH commercial land and development $ 2,044 Sales comparison approach Adj to comparables 5.0% - 40.0% (22.1%) Bulk sale approach Discount rate 10.7% (10.7%) Remaining commercial $ 1,872 Sales comparison approach Adj to comparables 0.0% - 25.3% (1.0%) Bulk sale approach Discount rate 10.0% - 10.7% (10.0%) Residential real estate $ 1,882 Sales comparison approach Adj to comparables 0.0% - 96.7% (12.5%) Income approach Capitalization rate 3.8% - 10.1% (9.1%) Cost approach Accumulated depreciation 33.3% - 50.0% (43.4%) Other real estate owned: Commercial real estate $ 2,796 Sales comparison approach Adj to comparables 2.0% - 71.0% (26.9%) Income approach Capitalization rate 9.5% (9.5%) Construction real estate $ 3,387 Sales comparison approach Adj to comparables 0.0% - 85.0% (24.3%) Bulk sale approach Discount rate 15.0% (15.0%) Residential real estate $ 2,332 Sales comparison approach Adj to comparables 0.1% - 61.8% (23.0%)
Fair Value, by Balance Sheet Grouping	The fair value of financial instruments at September 30, 2016 and December 31, 2015 , was as follows: September 30, 2016 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 239,998 $ 239,998 $ — $ — $ 239,998 Investment securities 1,419,944 2,028 1,422,580 779 1,425,387 Accrued interest receivable - securities 3,376 — 3,376 — 3,376 Accrued interest receivable - loans 14,575 — — 14,575 14,575 Loans held for sale 15,204 — 15,204 — 15,204 Mortgage IRLCs 301 — 301 — 301 Impaired loans carried at fair value 7,876 — — 7,876 7,876 Other loans, net 5,110,061 — — 5,090,488 5,090,488 Loans receivable, net $ 5,133,442 $ — $ 15,505 $ 5,098,364 $ 5,113,869 Financial liabilities: Noninterest bearing checking accounts $ 1,429,024 $ 1,429,024 $ — $ — $ 1,429,024 Interest bearing transactions accounts 1,227,995 1,227,995 — — 1,227,995 Savings accounts 1,716,951 1,716,951 — — 1,716,951 Time deposits 1,140,288 — 1,145,680 — 1,145,680 Other 5,401 5,401 — — 5,401 Total deposits $ 5,519,659 $ 4,379,371 $ 1,145,680 $ — $ 5,525,051 Short-term borrowings $ 218,214 $ — $ 218,214 $ — $ 218,214 Long-term debt 742,723 — 777,696 — 777,696 Subordinated debentures/notes 45,000 — 40,964 — 40,964 Accrued interest payable – deposits 977 75 902 — 977 Accrued interest payable – debt/borrowings 1,328 — 1,327 — 1,327 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226 December 31, 2015 Fair Value Measurements (In thousands) Carrying value Level 1 Level 2 Level 3 Total fair value Financial assets: Cash and money market instruments $ 149,459 $ 149,459 $ — $ — $ 149,459 Investment securities 1,585,568 1,941 1,584,984 769 1,587,694 Accrued interest receivable - securities 4,436 — 4,436 — 4,436 Accrued interest receivable - loans 14,239 — — 14,239 14,239 Loans held for sale 7,306 — 7,306 — 7,306 Mortgage IRLCs 165 — 165 — 165 Impaired loans carried at fair value 9,496 — — 9,496 9,496 Other loans, net 4,994,624 — — 4,997,318 4,997,318 Loans receivable, net $ 5,011,591 $ — $ 7,471 $ 5,006,814 $ 5,014,285 Financial liabilities: Noninterest bearing checking accounts $ 1,404,032 $ 1,404,032 $ — $ — $ 1,404,032 Interest bearing transactions accounts 1,107,200 1,107,200 — — 1,107,200 Savings accounts 1,544,708 1,544,708 — — 1,544,708 Time deposits 1,290,412 — 1,295,329 — 1,295,329 Other 1,290 1,290 — — 1,290 Total deposits $ 5,347,642 $ 4,057,230 $ 1,295,329 $ — $ 5,352,559 Short-term borrowings $ 394,242 $ — $ 394,242 $ — $ 394,242 Long-term debt 738,105 — 771,420 — 771,420 Subordinated debentures/notes 45,000 — 41,596 — 41,596 Accrued interest payable – deposits 987 66 921 — 987 Accrued interest payable – debt/borrowings 1,351 4 1,347 — 1,351 Derivative financial instruments: Fair value swap $ 226 $ — $ — $ 226 $ 226

Other Comprehensive Income (L39

Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) Net of Tax (Tables)	9 Months Ended
	Sep. 30, 2016
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 and nine -month periods ended September 30, 2016 and 2015 : (in thousands) Changes in pension plan assets and benefit obligations Unrealized gains and losses on available for sale securities Total Beginning balance at July 1, 2016 $ (15,351 ) $ 15,740 $ 389 Other comprehensive loss before reclassifications — (2,182 ) (2,182 ) Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive loss — (2,182 ) (2,182 ) Ending balance at September 30, 2016 $ (15,351 ) $ 13,558 $ (1,793 ) Beginning balance at July 1, 2015 $ (14,865 ) $ 885 $ (13,980 ) Other comprehensive income before reclassifications — 6,551 6,551 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 6,551 6,551 Ending balance at September 30, 2015 $ (14,865 ) $ 7,436 $ (7,429 ) (in thousands) Changes in pension plan assets and benefit obligations Unrealized gains and losses on available for sale securities Total Beginning balance at January 1, 2016 $ (15,351 ) $ (292 ) $ (15,643 ) Other comprehensive income before reclassifications — 13,850 13,850 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 13,850 13,850 Ending balance at September 30, 2016 $ (15,351 ) $ 13,558 $ (1,793 ) Beginning balance at January 1, 2015 $ (14,865 ) $ 1,257 $ (13,608 ) Other comprehensive income before reclassifications — 6,179 6,179 Amounts reclassified from accumulated other comprehensive loss — — — Net current period other comprehensive income — 6,179 6,179 Ending balance at September 30, 2015 $ (14,865 ) $ 7,436 $ (7,429 )

Investment in Qualified Affor40

Investment in Qualified Affordable Housing (Tables)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 and December 31, 2015. (in thousands) September 30, 2016 December 31, 2015 Affordable housing tax credit investments $ 54,757 $ 51,247 Unfunded commitments 24,756 20,311

Repurchase Agreement Borrowin41

Repurchase Agreement Borrowings (Tables)	9 Months Ended
	Sep. 30, 2016
Transfers and Servicing [Abstract]
Schedule of Assets and Associated Liabilities Accounted for as Secured Borrowings [Table Text Block]	The following table presents the carrying value of Park's repurchase agreements by remaining contractual maturity at September 30, 2016 and December 31, 2015 : September 30, 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 $ 217,110 $ — $ — $ 301,104 $ 518,214 December 31, 2015 (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 $ 247,618 $ 2,239 $ — $ 304,385 $ 554,242

Loans (Narrative) (Details)

Loans (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Deferred Income	$ 11,000,000		$ 11,000,000		$ 10,400,000
Troubled Debt Restructuring, Classification removed	335,000		2,000,000
Partial Charge-Offs On Impaired Loans			22,201,000		28,705,000
Impaired Financing Receivable, Related Allowance	4,232,000		4,232,000		4,191,000
Recorded investment, related to loans	16,000,000		16,000,000		19,900,000
Troubled Debt Restructuring Included In Nonaccrual Loans	51,200,000		51,200,000		41,100,000
TDRs included in accruing loan totals	17,400,000		17,400,000		25,100,000
Nonaccrual Trouble Debt Restructuring Current	42,700,000		42,700,000		19,100,000
Commitments to lend additional funds to borrowers whose terms had been modified in a TDR	1,200,000		1,200,000		2,300,000
Specific reserves related to troubled debt restructuring	1,900,000		1,900,000		2,300,000
Additional Specific Reserves Related To Troubled Debt Restructuring	0	$ 212,000	975,000	$ 1,200,000
Modified substandard commercial loans, total recorded investment	437,000	245,000	437,000	245,000
Modified substandard consumer loans, total recorded investment	5,100,000	12,800,000	5,100,000	12,800,000
Loan Modifications on Nonacrrual status	7,600,000	160,000	$ 8,500,000	1,000,000
Loan past due period before entering default status			30 days
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	3,869,000	2,664,000	$ 3,951,000	2,710,000
Deposit Liabilities Reclassified as Loans Receivable	2,800,000		2,800,000		1,700,000
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans			16,700,000		24,200,000
Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans			5,500,000		4,500,000
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	808,000		808,000
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		0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Related Allowance	525,000		525,000		$ 381,000
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	14,000	61,000	14,000	61,000
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period	$ 3,900,000	$ 2,600,000	$ 3,900,000	$ 2,600,000

Loans (Composition Of Loan Port

Loans (Composition Of Loan Portfolio By Class Of Loan) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		$ 77,998	$ 69,224	$ 77,998	$ 69,224	$ 80,664
Loan balance		5,187,004		5,187,004		5,068,085
Accrued interest receivable		17,951		17,951		18,675
Recorded Investment		5,201,579		5,201,579		5,082,324
Impaired Financing Receivable, Average Recorded Investment		84,736	69,933	81,191	69,541
Impaired Financing Receivable, Interest Income, Cash Basis Method		767	409	4,011	1,513
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		23,856	19,154	23,856	19,154
Impaired Financing Receivable, Average Recorded Investment		26,679	19,793	28,217	19,056
Impaired Financing Receivable, Interest Income, Cash Basis Method		194	35	740	306
Construction Real Estate, SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		1,700	2,045	1,700	2,045
Loan balance	[1]	1,700		1,700		2,044
Accrued interest receivable	[1]	0		0		0
Recorded Investment	[1]	1,700		1,700		2,044
Impaired Financing Receivable, Average Recorded Investment		1,700	2,068	1,906	2,073
Impaired Financing Receivable, Interest Income, Cash Basis Method		0	0	0	8
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		2,677	5,993	2,677	5,993
Loan balance		136,883		136,883		128,046
Accrued interest receivable		316		316		321
Recorded Investment		137,199		137,199		128,367
Impaired Financing Receivable, Average Recorded Investment		3,943	6,059	4,338	5,771
Impaired Financing Receivable, Interest Income, Cash Basis Method		16	2	44	13
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		41,848		41,848		36,722
Accrued interest receivable		88		88		75
Recorded Investment		41,936		41,936		36,797
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		5,544		5,544		6,533
Accrued interest receivable		18		18		21
Recorded Investment		5,562		5,562		6,554
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		23,700	24,370	23,700	24,370
Loan balance		408,372		408,372		410,571
Accrued interest receivable		925		925		1,014
Recorded Investment		409,297		409,297		411,585
Impaired Financing Receivable, Average Recorded Investment		24,422	24,560	24,618	24,784
Impaired Financing Receivable, Interest Income, Cash Basis Method		314	240	2,619	768
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		1,189,232		1,189,232		1,210,819
Accrued interest receivable		1,382		1,382		1,469
Recorded Investment		1,190,614		1,190,614		1,212,288
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		212,968		212,968		211,415
Accrued interest receivable		788		788		769
Recorded Investment		213,756		213,756		212,184
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		19,481		19,481		22,638
Accrued interest receivable		65		65		78
Recorded Investment		19,546		19,546		22,716
Loans Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Accrued interest receivable		14,575		14,575		14,239
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance	[1]	958,029		958,029		955,727
Accrued interest receivable	[1]	3,786		3,786		3,437
Recorded Investment	[1]	961,815		961,815		959,164
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Recorded Investment		26,065	17,662	26,065	17,662
Loan balance	[1]	1,141,002		1,141,002		1,113,603
Accrued interest receivable	[1]	4,268		4,268		4,009
Recorded Investment	[1]	1,145,270		1,145,270		1,117,612
Impaired Financing Receivable, Average Recorded Investment		27,982	17,453	22,108	17,857
Impaired Financing Receivable, Interest Income, Cash Basis Method		243	$ 132	608	$ 418
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		1,068,343		1,068,343		967,111
Accrued interest receivable		2,884		2,884		3,032
Recorded Investment		1,071,227		1,071,227		970,143
Impaired Financing Receivable, Average Recorded Investment		10		4
Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Loan balance		3,602		3,602		2,856
Accrued interest receivable		55		55		14
Recorded Investment		$ 3,657		$ 3,657		$ 2,870
[1]	Included within 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	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	$ 97,832	$ 95,887
Accruing restructured loans	17,403	25,088
Loans past due 90 days or more and accruing	1,723	1,975
Total nonperforming loans	116,958	122,950
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	22,951	21,676
Accruing restructured loans	953	8,947
Loans past due 90 days or more and accruing	0
Total nonperforming loans	23,904	30,623
Construction Real Estate, SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	1,700	2,044
Accruing restructured loans	0	0
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	1,700	2,044
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	2,257	4,162
Accruing restructured loans	420	514
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	2,677	4,676
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	0	7
Accruing restructured loans	105	110
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	105	117
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	46	64
Accruing restructured loans	96	114
Loans past due 90 days or more and accruing	0	0
Total nonperforming loans	142	178
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	23,700	25,063
Accruing restructured loans	0	261
Loans past due 90 days or more and accruing	0
Total nonperforming loans	23,700	25,324
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	19,768	20,378
Accruing restructured loans	9,570	10,143
Loans past due 90 days or more and accruing	750	851
Total nonperforming loans	30,088	31,372
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	2,111	1,749
Accruing restructured loans	629	873
Loans past due 90 days or more and accruing	51	27
Total nonperforming loans	2,791	2,649
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	589	1,657
Accruing restructured loans	609	635
Loans past due 90 days or more and accruing	25	4
Total nonperforming loans	1,223	2,296
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	21,760	15,268
Accruing restructured loans	4,305	2,757
Loans past due 90 days or more and accruing	0
Total nonperforming loans	26,065	18,025
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Nonaccrual loans	2,950	3,819
Accruing restructured loans	716	734
Loans past due 90 days or more and accruing	897	1,093
Total nonperforming loans	$ 4,563	$ 5,646

Loans (Loans Individually And C

Loans (Loans Individually And Collectively Evaluated For Impairment) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 4,232	$ 4,191
Nonaccrual and accruing restructured loans	115,235	120,975
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	77,998	80,664
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	37,237	40,311
Partial Charge-Offs On Impaired Loans	22,201	28,705
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	23,904	30,623
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	23,856	30,595
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	48	28
Construction Real Estate, SEPH Commercial Land and Development [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	1,700	2,044
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	1,700	2,044
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	2,677	4,676
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	2,677	4,676
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	105	117
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	105	117
Construction Real Estate - Installment [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	142	178
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	142	178
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	23,700	25,324
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	23,700	25,324
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	29,338	30,521
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	29,338	30,521
Residential Real Estate - HELOC [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	2,740	2,622
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	2,740	2,622
Residential Real Estate - Installment [Member]
Financing Receivable, Impaired [Line Items]
Nonaccrual and accruing restructured loans	1,198	2,292
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	0	0
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	1,198	2,292
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	525	381
Nonaccrual and accruing restructured loans	26,065	18,025
Nonaccrual and accruing restructured loans, loans individually evaluated for impairment	26,065	18,025
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	0	0
Nonaccrual and accruing restructured loans	3,666	4,553
Nonaccrual and accruing restructured loans, loans collectively evaluated for impairment	3,666	4,553
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Partial Charge-Offs On Impaired Loans	$ 16,700	$ 24,200

Loans (Loans Individually Evalu

Loans (Loans Individually Evaluated For Impairment By Class Of Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	$ 100,188		$ 100,188		$ 109,305
Recorded investment	77,998	$ 69,224	77,998	$ 69,224	80,664
Allowance for loan losses allocated	4,232		4,232		4,191
Impaired Financing Receivable, Average Recorded Investment	84,736	69,933	81,191	69,541
Impaired Financing Receivable, Interest Income, Cash Basis Method	767	409	4,011	1,513
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	23,856	19,154	23,856	19,154
Impaired Financing Receivable, Average Recorded Investment	26,679	19,793	28,217	19,056
Impaired Financing Receivable, Interest Income, Cash Basis Method	194	35	740	306
Commercial Financial And Agricultural [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	27,346		27,346		32,583
Recorded investment	13,225		13,225		18,763
Allowance for loan losses allocated	0		0		0
Commercial Financial And Agricultural [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	14,777		14,777		16,155
Recorded investment	10,631		10,631		11,832
Allowance for loan losses allocated	3,191		3,191		1,904
Construction Real Estate, SEPH Commercial Land and Development [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	1,700	2,045	1,700	2,045
Impaired Financing Receivable, Average Recorded Investment	1,700	2,068	1,906	2,073
Impaired Financing Receivable, Interest Income, Cash Basis Method	0	0	0	8
Construction Real Estate, SEPH Commercial Land and Development [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	3,268		3,268		10,834
Recorded investment	1,700		1,700		2,044
Allowance for loan losses allocated	0		0		0
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	2,677	5,993	2,677	5,993
Impaired Financing Receivable, Average Recorded Investment	3,943	6,059	4,338	5,771
Impaired Financing Receivable, Interest Income, Cash Basis Method	16	2	44	13
Construction Real Estate - Remaining Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	1,882		1,882		2,506
Recorded investment	1,834		1,834		1,531
Allowance for loan losses allocated	0		0		0
Construction Real Estate - Remaining Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	2,112		2,112		3,145
Recorded investment	843		843		3,145
Allowance for loan losses allocated	61		61		1,356
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	23,700	24,370	23,700	24,370
Impaired Financing Receivable, Average Recorded Investment	24,422	24,560	24,618	24,784
Impaired Financing Receivable, Interest Income, Cash Basis Method	314	240	2,619	768
Residential Real Estate - Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	22,671		22,671		23,798
Recorded investment	21,975		21,975		23,480
Allowance for loan losses allocated	0		0		0
Residential Real Estate - Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	1,803		1,803		1,951
Recorded investment	1,725		1,725		1,844
Allowance for loan losses allocated	455		455		550
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	26,065	17,662	26,065	17,662
Impaired Financing Receivable, Average Recorded Investment	27,982	17,453	22,108	17,857
Impaired Financing Receivable, Interest Income, Cash Basis Method	243	$ 132	608	$ 418
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	23,558		23,558		15,138
Recorded investment	23,294		23,294		14,916
Allowance for loan losses allocated	0		0		0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Impaired [Line Items]
Unpaid principal balance	2,771		2,771		3,195
Recorded investment	2,771		2,771		3,109
Allowance for loan losses allocated	525		525		$ 381
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Average Recorded Investment	$ 10		$ 4

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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Recorded investment	$ 77,998	$ 69,224	$ 77,998	$ 69,224	$ 80,664
Average recorded investment	84,736	69,933	81,191	69,541
Interest income recognized	767	409	4,011	1,513
Commercial Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	23,856	19,154	23,856	19,154
Average recorded investment	26,679	19,793	28,217	19,056
Interest income recognized	194	35	740	306
Construction Real Estate, SEPH Commercial Land and Development [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	1,700	2,045	1,700	2,045
Average recorded investment	1,700	2,068	1,906	2,073
Interest income recognized	0	0	0	8
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	2,677	5,993	2,677	5,993
Average recorded investment	3,943	6,059	4,338	5,771
Interest income recognized	16	2	44	13
Residential Real Estate - Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	23,700	24,370	23,700	24,370
Average recorded investment	24,422	24,560	24,618	24,784
Interest income recognized	314	240	2,619	768
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment	26,065	17,662	26,065	17,662
Average recorded investment	27,982	17,453	22,108	17,857
Interest income recognized	243	$ 132	608	$ 418
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Average recorded investment	$ 10		$ 4

Loans (Aging Of Recorded Invest

Loans (Aging Of Recorded Investment In Past Due Loans) (Details) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2016USD ($)contracts		Sep. 30, 2015USD ($)contracts	Sep. 30, 2016USD ($)contracts		Sep. 30, 2015USD ($)contracts	Dec. 31, 2015USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		115		91	309		322
Accruing loans past due 30-89 days		$ 21,443			$ 21,443			$ 24,505
Past due nonaccrual loans and loans past due 90 days or more and accruing		26,116	[1]		26,116	[1]		42,383	[2]
Total loans past due		47,559			47,559			66,888
Total current		5,154,020			5,154,020			5,015,436
Recorded Investment		5,201,579			5,201,579			5,082,324
Loans past due 90 days or more and accruing		1,723			1,723			1,975
Impaired Financing Receivable, Recorded Investment, Nonaccrual loans which are current in regards to contractual P&I payments		73,400			73,400			55,500
Financing Receivable, Modifications, Recorded Investment, During Period		$ 12,422		$ 7,233	$ 18,779		$ 12,993
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		12		8	29		33
Accruing loans past due 30-89 days		$ 1,368			$ 1,368			670
Past due nonaccrual loans and loans past due 90 days or more and accruing		4,071	[1]		4,071	[1]		7,536	[2]
Total loans past due		5,439			5,439			8,206
Total current		956,376			956,376			950,958
Loans past due 90 days or more and accruing		0			0
Financing Receivable, Modifications, Recorded Investment, During Period		6,603		$ 4,063	7,344		$ 6,182
Construction Real Estate, SEPH Commercial Land and Development [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		1,700	[1]		1,700	[1]		2,044	[2]
Total loans past due		1,700			1,700			2,044
Recorded Investment	[3]	1,700			1,700			2,044
Loans past due 90 days or more and accruing		$ 0			$ 0			0
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		1		1	2		1
Accruing loans past due 30-89 days								165
Past due nonaccrual loans and loans past due 90 days or more and accruing		$ 79	[1]		$ 79	[1]		84	[2]
Total loans past due		79			79			249
Total current		137,120			137,120			128,118
Recorded Investment		137,199			137,199			128,367
Loans past due 90 days or more and accruing		0			0			0
Financing Receivable, Modifications, Recorded Investment, During Period		$ 947		$ 196	$ 1,144		$ 196
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		0		0	0		1
Accruing loans past due 30-89 days		$ 45			$ 45			63
Past due nonaccrual loans and loans past due 90 days or more and accruing	[2]							7
Total loans past due		45			45			70
Total current		41,891			41,891			36,727
Recorded Investment		41,936			41,936			36,797
Loans past due 90 days or more and accruing		$ 0			$ 0			0
Financing Receivable, Modifications, Recorded Investment, During Period							$ 20
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		0		0	1		0
Accruing loans past due 30-89 days		$ 93			$ 93			200
Past due nonaccrual loans and loans past due 90 days or more and accruing	[2]							46
Total loans past due		93			93			246
Total current		5,469			5,469			6,308
Recorded Investment		5,562			5,562			6,554
Loans past due 90 days or more and accruing		$ 0			0			0
Financing Receivable, Modifications, Recorded Investment, During Period					$ 9
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		4		1	7		10
Accruing loans past due 30-89 days		$ 120			$ 120			325
Past due nonaccrual loans and loans past due 90 days or more and accruing		3,878	[1]		3,878	[1]		19,521	[2]
Total loans past due		3,998			3,998			19,846
Total current		405,299			405,299			391,739
Recorded Investment		409,297			409,297			411,585
Loans past due 90 days or more and accruing		0			0
Financing Receivable, Modifications, Recorded Investment, During Period		$ 225		$ 200	$ 918		$ 1,344
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		14		9	23		24
Accruing loans past due 30-89 days		$ 8,753			$ 8,753			10,569
Past due nonaccrual loans and loans past due 90 days or more and accruing		9,637	[1]		9,637	[1]		8,735	[2]
Total loans past due		18,390			18,390			19,304
Total current		1,172,224			1,172,224			1,192,984
Recorded Investment		1,190,614			1,190,614			1,212,288
Loans past due 90 days or more and accruing		750			750			851
Financing Receivable, Modifications, Recorded Investment, During Period		$ 1,173		$ 748	$ 1,809		$ 1,524
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		2		5	10		21
Accruing loans past due 30-89 days		$ 277			$ 277			487
Past due nonaccrual loans and loans past due 90 days or more and accruing		1,190	[1]		1,190	[1]		186	[2]
Total loans past due		1,467			1,467			673
Total current		212,289			212,289			211,511
Recorded Investment		213,756			213,756			212,184
Loans past due 90 days or more and accruing		51			51			27
Financing Receivable, Modifications, Recorded Investment, During Period		91		$ 47	201		$ 347
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing loans past due 30-89 days		293			293			426
Past due nonaccrual loans and loans past due 90 days or more and accruing		882	[1]		882	[1]		318	[2]
Total loans past due		1,175			1,175			744
Total current		18,371			18,371			21,972
Recorded Investment		19,546			19,546			22,716
Loans past due 90 days or more and accruing		25			25			4
Financing Receivable, Modifications, Recorded Investment, During Period		$ 37		$ 4	$ 79		$ 36
SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		0		0	0		0
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Recorded Investment	[3]	$ 961,815			$ 961,815			959,164
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		6		5	10		11
Accruing loans past due 30-89 days		$ 448			$ 448			142
Past due nonaccrual loans and loans past due 90 days or more and accruing		2,724	[1]		2,724	[1]		530	[2]
Total loans past due		3,172			3,172			672
Total current		1,142,098			1,142,098			1,116,940
Recorded Investment	[3]	1,145,270			1,145,270			1,117,612
Loans past due 90 days or more and accruing		0			0
Financing Receivable, Modifications, Recorded Investment, During Period		$ 1,777		$ 1,512	$ 5,118		$ 2,525
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		74		61	223		217
Accruing loans past due 30-89 days		$ 10,046			$ 10,046			11,458
Past due nonaccrual loans and loans past due 90 days or more and accruing		1,955	[1]		1,955	[1]		3,376	[2]
Total loans past due		12,001			12,001			14,834
Total current		1,059,226			1,059,226			955,309
Recorded Investment		1,071,227			1,071,227			970,143
Loans past due 90 days or more and accruing		897			897			1,093
Financing Receivable, Modifications, Recorded Investment, During Period		1,569		$ 463	2,157		$ 819
Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing loans past due 30-89 days		0			0			0
Past due nonaccrual loans and loans past due 90 days or more and accruing		0	[1]		0	[1]		0	[2]
Total loans past due		0			0			0
Total current		3,657			3,657			2,870
Recorded Investment		$ 3,657			$ 3,657			$ 2,870
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts		2		1	4		4
Accruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		$ 246		$ 708	$ 3,214		$ 2,048
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		152		245	102		1,014
Accruing Financing Receivable Modifications [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period				196			196
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	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	0		0
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period				200			200
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		0	96		325
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		0		16	17		242
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		33			72
Accruing Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period					2,812
Accruing Financing Receivable Modifications [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		61		51	115		71
Nonaccruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		12,176		6,525	15,565		10,945
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		6,451		3,818	7,242		5,168
Nonaccruing Financing Receivable Modifications [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		947			1,144
Nonaccruing Financing Receivable Modifications [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period							20
Nonaccruing Financing Receivable Modifications [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period					9
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		225			918		1,144
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		1,173		748	1,713		1,199
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		91		31	184		105
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		4		4	7		36
Nonaccruing Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		1,777		1,512	2,306		2,525
Nonaccruing Financing Receivable Modifications [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		$ 1,508		$ 412	$ 2,042		$ 748
[1]	1) Includes $1.7 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans.(2) Includes $73.4 million of nonaccrual loans which are current in regards to contractual principal and interest payments
[2]	1) Includes $2.0 million of loans past due 90 days or more and accruing. The remaining are past due nonaccrual loans.(2) Includes $55.5 million of nonaccrual loans which are current in regards to contractual principal and interest payments.
[3]	Included within 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		Sep. 30, 2016		Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		$ 5,201,579		$ 5,082,324
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		409,297		411,585
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	[1]	1,145,270		1,117,612
Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		3,657		2,870
5 Rated [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		13,749		24,703
5 Rated [Member] | Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		504		2,151
5 Rated [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		989		3,280
5 Rated [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		5,339	[2]	4,392	[3]
5 Rated [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		6,917	[2]	14,880	[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		755		4,272
6 Rated [Member] | SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		0	[2]	0	[3]
6 Rated [Member] | Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		119		122
6 Rated [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		177		386
6 Rated [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		25	[2]	347	[3]
6 Rated [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		434	[2]	3,417	[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		78,046		80,692
Impaired [Member] | SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		1,700	[2]	2,044	[3]
Impaired [Member] | Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		2,677		4,676
Impaired [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		23,700		25,324
Impaired [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		23,904	[2]	30,623	[3]
Impaired [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		26,065	[2]	18,025	[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		2,566,388		2,511,975
Pass Rated [Member] | Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		133,899		121,418
Pass Rated [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		384,431		382,595
Pass Rated [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		932,547	[2]	923,802	[3]
Pass Rated [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		1,111,854	[2]	1,081,290	[3]
Pass Rated [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loan balance, recorded investment		3,657		2,870
Recorded Investment [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		2,658,938		2,621,642
Recorded Investment [Member] | SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		1,700	[2]	2,044	[3]
Recorded Investment [Member] | Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		137,199		128,367
Recorded Investment [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		409,297		411,585
Recorded Investment [Member] | Commercial, Financial, and Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		961,815	[2]	959,164	[3]
Recorded Investment [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		1,145,270	[2]	1,117,612	[3]
Recorded Investment [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment		$ 3,657		$ 2,870
[1]	Included within 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 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 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		9 Months Ended
	Sep. 30, 2016USD ($)contracts	Sep. 30, 2015USD ($)contracts	Sep. 30, 2016USD ($)contracts	Sep. 30, 2015USD ($)contracts
Financing Receivable, Recorded Investment [Line Items]
Additional Specific Reserves Related To Troubled Debt Restructuring	$ 0	$ 212	$ 975	$ 1,200
Troubled Debt Restructuring, Classification removed	$ 335		$ 2,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	80	72	88	77
Number of Contracts | contracts	115	91	309	322
Total Recorded Investment	$ 12,422	$ 7,233	$ 18,779	$ 12,993
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 3,869	$ 2,664	$ 3,951	$ 2,710
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0	0	1
Total Recorded Investment				$ 20
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	5	7	5	7
Number of Contracts | contracts	12	8	29	33
Total Recorded Investment	$ 6,603	$ 4,063	$ 7,344	$ 6,182
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 129	$ 821	$ 129	$ 821
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Number of Contracts | contracts	1	1	2	1
Total Recorded Investment	$ 947	$ 196	$ 1,144	$ 196
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	3	1	4	1
Number of Contracts | contracts	4	1	7	10
Total Recorded Investment	$ 225	$ 200	$ 918	$ 1,344
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 679	$ 603	$ 709	$ 603
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	13	13	13	13
Number of Contracts | contracts	14	9	23	24
Total Recorded Investment	$ 1,173	$ 748	$ 1,809	$ 1,524
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 1,687	$ 902	$ 1,687	$ 902
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0	1	0
Total Recorded Investment			$ 9
Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	$ 37	$ 4	$ 79	$ 36
SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Number of Contracts | contracts	0	0	0	0
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	0	0
Number of Contracts | contracts	2	5	10	21
Total Recorded Investment	$ 91	$ 47	$ 201	$ 347
Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	53	50	60	55
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 559	$ 310	$ 611	$ 356
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0	$ 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	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	4	0	4	0
Number of Contracts | contracts	6	5	10	11
Total Recorded Investment	$ 1,777	$ 1,512	$ 5,118	$ 2,525
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 808		$ 808
Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	2	1	2	1
Number of Contracts | contracts	2	1	4	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 7	$ 28	$ 7	$ 28
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	74	61	223	217
Total Recorded Investment	$ 1,569	$ 463	$ 2,157	$ 819
Finance Leases Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0	$ 0	$ 0
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	246	708	3,214	2,048
Accruing [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	0	0	0
Accruing [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	152	245	102	1,014
Accruing [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment		196		196
Accruing [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment		200		200
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	0	96	325
Accruing [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	0	0	0
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	33		72
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	16	17	242
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment			2,812
Accruing [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	61	51	115	71
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	12,176	6,525	15,565	10,945
Nonaccrual [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment				20
Nonaccrual [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	6,451	3,818	7,242	5,168
Nonaccrual [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	947		1,144
Nonaccrual [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	225		918	1,144
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	1,173	748	1,713	1,199
Nonaccrual [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment			9
Nonaccrual [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	4	4	7	36
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	91	31	184	105
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	1,777	1,512	2,306	2,525
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	$ 1,508	$ 412	$ 2,042	$ 748

Loans (Recorded Investment In F

Loans (Recorded Investment In Financing Receivable Modified As TDR Within 12 Months) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)contracts	Sep. 30, 2015USD ($)contracts	Sep. 30, 2016USD ($)contracts	Sep. 30, 2015USD ($)contracts	Dec. 31, 2015USD ($)
Financing Receivable, Recorded Investment [Line Items]
Troubled Debt Restructuring, Classification removed	$ 335		$ 2,000
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	115	91	309	322
Number of Contracts | contracts	80	72	88	77
Recorded Investment	$ 3,869	$ 2,664	$ 3,951	$ 2,710
Financing Receivable, Modifications, Recorded Investment, During Period	12,422	$ 7,233	18,779	$ 12,993
Troubled Debt Restructuring Included In Nonaccrual Loans	51,200		51,200		$ 41,100
Nonaccrual Trouble Debt Restructuring Current	$ 42,700		$ 42,700		$ 19,100
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	0	0	1	0
Financing Receivable, Modifications, Recorded Investment, During Period			$ 9
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	12	8	29	33
Number of Contracts | contracts	5	7	5	7
Recorded Investment	$ 129	$ 821	$ 129	$ 821
Financing Receivable, Modifications, Recorded Investment, During Period	$ 6,603	$ 4,063	$ 7,344	$ 6,182
SEPH Commercial Land and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	0	0	0	0
Number of Contracts | contracts	0	0	0	0
Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	1	1	2	1
Number of Contracts | contracts	0	0	0	0
Financing Receivable, Modifications, Recorded Investment, During Period	$ 947	$ 196	$ 1,144	$ 196
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	4	1	7	10
Number of Contracts | contracts	3	1	4	1
Recorded Investment	$ 679	$ 603	$ 709	$ 603
Financing Receivable, Modifications, Recorded Investment, During Period	$ 225	$ 200	$ 918	$ 1,344
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	14	9	23	24
Number of Contracts | contracts	13	13	13	13
Recorded Investment	$ 1,687	$ 902	$ 1,687	$ 902
Financing Receivable, Modifications, Recorded Investment, During Period	$ 1,173	$ 748	$ 1,809	$ 1,524
Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	2	5	10	21
Number of Contracts | contracts	0	0	0	0
Financing Receivable, Modifications, Recorded Investment, During Period	$ 91	$ 47	$ 201	$ 347
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	0	0	0	1
Financing Receivable, Modifications, Recorded Investment, During Period				$ 20
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	$ 37	$ 4	$ 79	$ 36
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	74	61	223	217
Financing Receivable, Modifications, Recorded Investment, During Period	$ 1,569	$ 463	$ 2,157	$ 819
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	6	5	10	11
Number of Contracts | contracts	4	0	4	0
Recorded Investment	$ 808		$ 808
Financing Receivable, Modifications, Recorded Investment, During Period	$ 1,777	$ 1,512	$ 5,118	$ 2,525
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Number of Contracts, During Period | contracts	2	1	4	4
Number of Contracts | contracts	2	1	2	1
Recorded Investment	$ 7	$ 28	$ 7	$ 28
Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	53	50	60	55
Recorded Investment	$ 559	$ 310	$ 611	$ 356
Finance Leases Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Accruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	246	708	3,214	2,048
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	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	152	245	102	1,014
Accruing Financing Receivable Modifications [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		196		196
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period		200		200
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	0	0	96	325
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	0	16	17	242
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	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	33		72
Accruing Financing Receivable Modifications [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	61	51	115	71
Accruing Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period			2,812
Nonaccruing Financing Receivable Modifications [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	12,176	6,525	15,565	10,945
Nonaccruing Financing Receivable Modifications [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period			9
Nonaccruing Financing Receivable Modifications [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	6,451	3,818	7,242	5,168
Nonaccruing Financing Receivable Modifications [Member] | Construction Real Estate - Remaining Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	947		1,144
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	225		918	1,144
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	1,173	748	1,713	1,199
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	91	31	184	105
Nonaccruing Financing Receivable Modifications [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period				20
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	4	4	7	36
Nonaccruing Financing Receivable Modifications [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	1,508	412	2,042	748
Nonaccruing Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Recorded Investment, During Period	$ 1,777	$ 1,512	$ 2,306	$ 2,525

Allowance For Loan Losses (Acti

Allowance For Loan Losses (Activity In The Allowance For Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
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	4,140	$ 3,716	$ 11,960	$ 10,161
Financing Receivable, Allowance for Credit Losses, Recovery	6,369	2,368	12,847	8,644
Financing Receivables Allowance For Credit Losses Net Charge Offs	(2,229)	1,348	(887)	1,517
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	58,699	57,427	56,494	54,352
Ending balance	53,562	58,483	53,562	58,483
Provision for Loan, Lease, and Other Losses	(7,366)	2,404	(3,819)	5,648
Commercial Financial And Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	457	829	1,601	1,680
Financing Receivable, Allowance for Credit Losses, Recovery	246	415	889	987
Financing Receivables Allowance For Credit Losses Net Charge Offs	211	414	712	693
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	16,478	12,124	13,694	10,719
Ending balance	16,270	13,259	16,270	13,259
Provision for Loan, Lease, and Other Losses	3	1,549	3,288	3,233
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	4	46	82	329
Financing Receivable, Allowance for Credit Losses, Recovery	973	386	3,005	2,188
Financing Receivables Allowance For Credit Losses Net Charge Offs	(969)	(340)	(2,923)	(1,859)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	9,203	9,467	9,197	8,808
Ending balance	10,573	9,455	10,573	9,455
Provision for Loan, Lease, and Other Losses	401	(352)	(1,547)	(1,212)
Construction Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	1,300	4	1,318	41
Financing Receivable, Allowance for Credit Losses, Recovery	3,659	274	4,708	1,238
Financing Receivables Allowance For Credit Losses Net Charge Offs	(2,359)	(270)	(3,390)	(1,197)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	8,256	8,670	8,564	8,652
Ending balance	5,358	8,990	5,358	8,990
Provision for Loan, Lease, and Other Losses	(5,257)	50	(6,596)	(859)
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	293	575	1,776	1,732
Financing Receivable, Allowance for Credit Losses, Recovery	348	461	1,226	1,808
Financing Receivables Allowance For Credit Losses Net Charge Offs	(55)	114	550	(76)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	13,180	15,268	13,514	14,772
Ending balance	11,328	15,022	11,328	15,022
Provision for Loan, Lease, and Other Losses	(1,907)	(132)	(1,636)	174
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	2,086	2,262	7,183	6,379
Financing Receivable, Allowance for Credit Losses, Recovery	1,142	832	3,017	2,420
Financing Receivables Allowance For Credit Losses Net Charge Offs	944	1,430	4,166	3,959
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	11,581	11,898	11,524	11,401
Ending balance	10,033	11,757	10,033	11,757
Provision for Loan, Lease, and Other Losses	(604)	1,289	2,675	4,315
Leases [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	0	0	0	0
Financing Receivable, Allowance for Credit Losses, Recovery	1	0	2	3
Financing Receivables Allowance For Credit Losses Net Charge Offs	(1)	0	(2)	(3)
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1	0	1	0
Ending balance	0	0	0	0
Provision for Loan, Lease, and Other Losses	$ (2)	$ 0	$ (3)	$ (3)

Allowance For Loan Losses (Comp

Allowance For Loan Losses (Composition Of The Allowance For Loan Losses) (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		$ 4,232	$ 4,191
Allowance for loan losses collectively evaluated for impairment		49,330	52,303
Total ending allowance balance		53,562	56,494
Loans individually evaluated for impairment		77,986	80,599
Loans collectively evaluated for impairment		5,109,018	4,987,486
Total ending loan balance, net of accrued interest receivable		$ 5,187,004	$ 5,068,085
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		5.42662%	5.19982%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.96555%	1.04868%
Total ending allowance for loan losses balance as a percentage of loan balance		1.03262%	1.1147%
Recorded investment		$ 77,998	$ 80,664
Recorded investment collectively evaluated for impairment		5,123,581	5,001,660
Recorded Investment		5,201,579	5,082,324
Commercial Financial And Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		3,191	1,904
Allowance for loan losses collectively evaluated for impairment		13,079	11,790
Total ending allowance balance		16,270	13,694
Loans individually evaluated for impairment		23,852	30,545
Loans collectively evaluated for impairment		934,177	925,182
Total ending loan balance, net of accrued interest receivable	[1]	$ 958,029	$ 955,727
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		13.37833%	6.23343%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		1.40006%	1.27434%
Total ending allowance for loan losses balance as a percentage of loan balance		1.69828%	1.43284%
Recorded investment		$ 23,856	$ 30,595
Recorded investment collectively evaluated for impairment		937,959	928,569
Recorded Investment	[1]	961,815	959,164
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		525	381
Allowance for loan losses collectively evaluated for impairment		10,048	8,816
Total ending allowance balance		10,573	9,197
Loans individually evaluated for impairment		26,057	18,015
Loans collectively evaluated for impairment		1,114,945	1,095,588
Total ending loan balance, net of accrued interest receivable	[1]	$ 1,141,002	$ 1,113,603
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		2.01481%	2.1149%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.90121%	0.80468%
Total ending allowance for loan losses balance as a percentage of loan balance		0.92664%	0.82588%
Recorded investment		$ 26,065	$ 18,025
Recorded investment collectively evaluated for impairment		1,119,205	1,099,587
Recorded Investment	[1]	1,145,270	1,117,612
Construction Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		61	1,356
Allowance for loan losses collectively evaluated for impairment		5,297	7,208
Total ending allowance balance		5,358	8,564
Loans individually evaluated for impairment		4,377	6,716
Loans collectively evaluated for impairment		181,599	166,629
Total ending loan balance, net of accrued interest receivable		$ 185,976	$ 173,345
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		1.39365%	20.19059%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		2.91687%	4.32578%
Total ending allowance for loan losses balance as a percentage of loan balance		2.88102%	4.94044%
Recorded investment		$ 4,377	$ 6,720
Recorded investment collectively evaluated for impairment		182,020	167,042
Recorded Investment		186,397	173,762
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses individually evaluated for impairment		455	550
Allowance for loan losses collectively evaluated for impairment		10,873	12,964
Total ending allowance balance		11,328	13,514
Loans individually evaluated for impairment		23,700	25,323
Loans collectively evaluated for impairment		1,806,352	1,830,120
Total ending loan balance, net of accrued interest receivable		$ 1,830,052	$ 1,855,443
Allowance for loan losses as a percentage of loan balance individually evaluated for impairment		1.91983%	2.17194%
Allowance for loan losses as a percentage of loan balance collectively evaluated for impairment		0.60193%	0.70837%
Total ending allowance for loan losses balance as a percentage of loan balance		0.619%	0.72834%
Recorded investment		$ 23,700	$ 25,324
Recorded investment collectively evaluated for impairment		1,809,513	1,833,449
Recorded Investment		1,833,213	1,858,773
Consumer [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		10,033	11,524
Total ending allowance balance		10,033	11,524
Loans individually evaluated for impairment		0	0
Loans collectively evaluated for impairment		1,068,343	967,111
Total ending loan balance, net of accrued interest receivable		$ 1,068,343	$ 967,111
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		0.93912%	1.19159%
Total ending allowance for loan losses balance as a percentage of loan balance		0.93912%	1.19159%
Recorded investment		$ 0	$ 0
Recorded investment collectively evaluated for impairment		1,071,227	970,143
Recorded Investment		1,071,227	970,143
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	1
Total ending allowance balance		0	1
Loans individually evaluated for impairment		0	0
Loans collectively evaluated for impairment		3,602	2,856
Total ending loan balance, net of accrued interest receivable		$ 3,602	$ 2,856
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%	0.03501%
Total ending allowance for loan losses balance as a percentage of loan balance		0.00%	0.03501%
Recorded investment		$ 0	$ 0
Recorded investment collectively evaluated for impairment		3,657	2,870
Recorded Investment		$ 3,657	$ 2,870
[1]	Included within 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	Sep. 30, 2016	Dec. 31, 2015
Schedule of Assets Repossessed or Foreclosed, or loans in process of foreclosure [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 14,941	$ 18,651
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	8,123	8,333
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	4,668	7,259
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	2,150	3,059
Mortgage Loans in Process of Foreclosure, Amount	$ 3,341	$ 2,021

Earnings Per Common Share (Narr

Earnings Per Common Share (Narrative) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	85,425		85,425
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	68,916	40,721	71,023	41,131
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		0	41,550,000	23,025,000
Treasury Stock, Shares, Acquired		20,000	0	41,500

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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Income available to common shareholders	$ 27,449	$ 20,040	$ 66,133	$ 60,123
Denominator for basic earnings per share (weighted average common shares outstanding)	15,330,791	15,361,087	15,330,802	15,370,380
Effect of dilutive options and warrants	68,916	40,721	71,023	41,131
Denominator for diluted earnings per share (weighted average common shares outstanding adjusted for the effect of dilutive options and warrants)	15,399,707	15,401,808	15,401,825	15,411,511
Basic earnings per common share	$ 1.79	$ 1.30	$ 4.31	$ 3.91
Diluted earnings per common share	$ 1.78	$ 1.30	$ 4.29	$ 3.90

Segment Information (Schedule O

Segment Information (Schedule Of Operating Results By Segment) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)segments	Sep. 30, 2015USD ($)	Dec. 31, 2015USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments | segments			3
Net interest income	$ 58,533,000	$ 57,715,000	$ 175,837,000	$ 169,765,000
Provision for (recovery of) loan losses	(7,366,000)	2,404,000	(3,819,000)	5,648,000
Other income and security gains	20,535,000	20,191,000	56,660,000	58,255,000
Total other expense	46,756,000	47,429,000	141,961,000	137,816,000
Income (loss) before income taxes	39,678,000	28,073,000	94,355,000	84,556,000
Income Tax Expense (Benefit)	12,229,000	8,033,000	28,222,000	24,433,000
Net Income	27,449,000	20,040,000	66,133,000	60,123,000
Assets	7,364,092,000	7,300,340,000	7,364,092,000	7,300,340,000	$ 7,311,354,000
PNB [Member]
Segment Reporting Information [Line Items]
Net interest income	57,033,000	55,972,000	170,194,000	164,559,000
Provision for (recovery of) loan losses	(3,345,000)	2,587,000	(450,000)	7,329,000
Other income and security gains	19,279,000	19,699,000	55,010,000	56,431,000
Total other expense	42,327,000	43,144,000	126,418,000	124,662,000
Income (loss) before income taxes	37,330,000	29,940,000	99,236,000	88,999,000
Income Tax Expense (Benefit)	11,839,000	9,233,000	30,923,000	27,800,000
Net Income	25,491,000	20,707,000	68,313,000	61,199,000
Assets	7,287,923,000	7,216,773,000	7,287,923,000	7,216,773,000
GFSC [Member]
Segment Reporting Information [Line Items]
Net interest income	1,472,000	1,643,000	4,416,000	5,014,000
Provision for (recovery of) loan losses	(313,000)	282,000	1,658,000	1,086,000
Other income and security gains	(1,000)	1,000	(1,000)	2,000
Total other expense	800,000	726,000	3,632,000	2,264,000
Income (loss) before income taxes	984,000	636,000	(875,000)	1,666,000
Income Tax Expense (Benefit)	344,000	242,000	(305,000)	584,000
Net Income	640,000	394,000	(570,000)	1,082,000
Assets	32,759,000	36,517,000	32,759,000	36,517,000
SEPH [Member]
Segment Reporting Information [Line Items]
Net interest income	8,000	65,000	1,240,000	(37,000)
Provision for (recovery of) loan losses	(3,708,000)	(465,000)	(5,027,000)	(2,767,000)
Other income and security gains	1,126,000	347,000	1,272,000	1,434,000
Total other expense	1,789,000	1,456,000	4,525,000	4,939,000
Income (loss) before income taxes	3,053,000	(579,000)	3,014,000	(775,000)
Income Tax Expense (Benefit)	1,070,000	(203,000)	1,056,000	(271,000)
Net Income	1,983,000	(376,000)	1,958,000	(504,000)
Assets	36,938,000	37,938,000	36,938,000	37,938,000
All Other [Member]
Segment Reporting Information [Line Items]
Net interest income	20,000	35,000	(13,000)	229,000
Other income and security gains	131,000	144,000	379,000	388,000
Total other expense	1,840,000	2,103,000	7,386,000	5,951,000
Income (loss) before income taxes	(1,689,000)	(1,924,000)	(7,020,000)	(5,334,000)
Income Tax Expense (Benefit)	(1,024,000)	(1,239,000)	(3,452,000)	(3,680,000)
Net Income	(665,000)	(685,000)	(3,568,000)	(1,654,000)
Assets	$ 6,472,000	$ 9,112,000	$ 6,472,000	$ 9,112,000

Mortgage Loans Held For Sale (D

Mortgage Loans Held For Sale (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Mortgage Loans Held for Sale [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	$ 15,204		$ 7,306
Disposal Group, Including Discontinued Operation, Mortgage Loans	15,000		7,200
Gain (Loss) on Sale of Mortgage Loans	200		$ 95
Commercial Portfolio Segment [Member]
Mortgage Loans Held for Sale [Line Items]
Gain on sale of loans in secondary market	$ 0	$ 800
Loans held for sale - lower of cost or market		$ 100

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Schedule of Investments [Line Items]
Investment Securities average remaining life		3 years 11 months 15 days
Other than Temporary Impairment Losses, Investments	$ 0	$ 0	$ 0
Available-for-sale Securities, Gross Realized Gains	0	$ 0	$ 0
Asset backed securities mortgage portfolio, term		15 years
Federal Home Loan Bank Advances	1,033,000,000	$ 1,033,000,000		$ 1,072,000,000
U.S. Treasury And Sponsored Entities Callable Notes [Member]
Schedule of Investments [Line Items]
Available for Sale expected to be called	0	0
Available-for-sale securities	$ 269,100,000	$ 269,100,000
U.S. Treasury And Sponsored Entities Callable Notes [Member] | Minimum [Member]
Schedule of Investments [Line Items]
Available for Sale Securities, Debt Maturities, Term		1 year
U.S. Treasury And Sponsored Entities Callable Notes [Member] | Maximum [Member]
Schedule of Investments [Line Items]
Available for Sale Securities, Debt Maturities, Term		4 years

Investment Securities (Schedule

Investment Securities (Schedule Of Investment Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Securities Available-for-Sale, Amortized Cost	$ 1,203,988	$ 1,436,714
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	21,845	10,366
Securities Available-for-Sale, Gross Unrealized Holding Losses	984	10,814
Securities Available-for-Sale, Total Fair value	1,224,849	1,436,266
Securities Held-to-Maturity, Amortized Cost	195,095	149,302
Securities Held-to-Maturity, Gross Unrecognized Holding Gains	5,662	2,260
Securities Held-to-Maturity, Gross Unrecognized Holding Losses	219	134
Securities Held-to-Maturity, Estimated Fair Value	200,538	151,428
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	527,605
Securities Available-for-Sale, Gross Unrealized Holding Losses	855	5,542
Securities Available-for-Sale, Total Fair value	269,145	522,063
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Amortized Cost	932,869	907,989
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	20,157	8,776
Securities Available-for-Sale, Gross Unrealized Holding Losses	129	5,272
Securities Available-for-Sale, Total Fair value	952,897	911,493
Securities Held-to-Maturity, Amortized Cost	81,812	101,112
Securities Held-to-Maturity, Gross Unrecognized Holding Gains	1,885	1,526
Securities Held-to-Maturity, Gross Unrecognized Holding Losses	19	134
Securities Held-to-Maturity, Estimated Fair Value	83,678	102,504
Other Equity Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Amortized Cost	1,119	1,120
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	1,688	1,590
Securities Available-for-Sale, Total Fair value	2,807	2,710
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Securities Held-to-Maturity, Amortized Cost	113,283	48,190
Securities Held-to-Maturity, Gross Unrecognized Holding Gains	3,777	734
Securities Held-to-Maturity, Gross Unrecognized Holding Losses	200
Securities Held-to-Maturity, Estimated Fair Value	$ 116,860	$ 48,924

Investment Securities (Schedu61

Investment Securities (Schedule Of Unrealized Loss On Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Securities Available-for-Sale, Less than 12 months, Fair value	$ 318,030	$ 711,142
Securities Available-for-Sale, Less than 12 months, Unrealized losses	919	4,893
Securities Available-for-Sale, 12 months or longer, Fair value	28,993	309,633
Securities Available-for-Sale, 12 months or longer, Unrealized losses	65	5,921
Securities Available-for-Sale, Fair value, Total	347,023	1,020,775
Securities Available-for-Sale, Unrealized losses, Total	984	10,814
Securities Held-to-Maturity, Less than 12 months, Fair value	13,259
Securities Held-to-Maturity, Less than 12 months, Unrealized losses	200
Securities Held-to-Maturity, 12 months or longer, Fair value	7,700
Securities Held-to-Maturity, 12 months or longer, Unrealized losses	19
Securities Held-to-Maturity, Fair value, Total	20,959
Securities Held-to-Maturity, Unrealized losses, Total	219	134
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	269,145	326,973
Securities Available-for-Sale, Less than 12 months, Unrealized losses	855	2,117
Securities Available-for-Sale, 12 months or longer, Fair value		195,090
Securities Available-for-Sale, 12 months or longer, Unrealized losses		3,425
Securities Available-for-Sale, Fair value, Total	269,145	522,063
Securities Available-for-Sale, Unrealized losses, Total	855	5,542
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Less than 12 months, Fair value	48,885	384,169
Securities Available-for-Sale, Less than 12 months, Unrealized losses	64	2,776
Securities Available-for-Sale, 12 months or longer, Fair value	28,993	114,543
Securities Available-for-Sale, 12 months or longer, Unrealized losses	65	2,496
Securities Available-for-Sale, Fair value, Total	77,878	498,712
Securities Available-for-Sale, Unrealized losses, Total	129	5,272
Securities Held-to-Maturity, Less than 12 months, Fair value		5,656
Securities Held-to-Maturity, Less than 12 months, Unrealized losses		10
Securities Held-to-Maturity, 12 months or longer, Fair value	7,700	7,792
Securities Held-to-Maturity, 12 months or longer, Unrealized losses	19	124
Securities Held-to-Maturity, Fair value, Total	7,700	13,448
Securities Held-to-Maturity, Unrealized losses, Total	19	$ 134
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Securities Held-to-Maturity, Less than 12 months, Fair value	13,259
Securities Held-to-Maturity, Less than 12 months, Unrealized losses	200
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	13,259
Securities Held-to-Maturity, Unrealized losses, Total	$ 200

Investment Securities (Amortize

Investment Securities (Amortized Cost And Estimated Fair Value Of Investments In Debt Securities By Contractual Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Securities Available-for-Sale, Total Fair value	$ 1,224,849	$ 1,436,266
Securities Held-to-Maturity, Amortized Cost	195,095	149,302
Securities held-to-maturity, fair value	200,538	151,428
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	113,283
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	116,860
Securities Held-to-Maturity, Amortized Cost	113,283	48,190
Securities held-to-maturity, fair value	$ 116,860	48,924
Held to Maturity Securities weighted avg yield	4.35%
Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	$ 270,000
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	$ 269,145
Available for Sale Securities Debt Maturities two through five Weighted Avg Yield	1.18%
Securities Available-for-Sale, Total, Amortized cost	$ 270,000
Securities Available-for-Sale, Total Fair value	$ 269,145	522,063
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	$ 932,869
Securities Available-for-Sale, Total Fair value	$ 952,897	911,493
Available for Sale Securities Weighted Avg Yield	2.13%
Securities Held-to-Maturity, Amortized Cost	$ 81,812	101,112
Securities held-to-maturity, fair value	$ 83,678	$ 102,504
Held to Maturity Securities weighted avg yield	3.31%

Other Investment Securities (Sc

Other Investment Securities (Schedule Of Other Investment Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Federal Home Loan Bank Stock	$ 50,086	$ 50,086
Federal Reserve Bank Stock	8,225	8,225
Other investment securities	$ 58,311	$ 58,311

Share Based Compensation (Detai

Share Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended			12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			1,125
Allocated Share-based Compensation Expense	$ 398	$ 234	$ 1,190	$ 704
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		600,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	483,675		483,675
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			41,550	23,025	21,975
2014 Awards | Scenario, Forecast [Member] | 2013 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense						$ 389
2015 Awards | Scenario, Forecast [Member] | 2013 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense						871
2016 Awards [Member] | Scenario, Forecast [Member] | 2013 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense						$ 2,254

Pension Plan (Components Of Net

Pension Plan (Components Of Net Periodic Benefit Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 1,264	$ 1,342	$ 3,792	$ 4,026
Interest cost	1,217	1,174	3,651	3,522
Expected return on plan assets	(2,737)	(2,855)	(8,211)	(8,565)
Amortization of prior service cost	0	4	0	12
Recognized net actuarial loss	193	159	579	477
Benefit expense	$ (63)	$ (176)	(189)	(528)
Pension plan contributions			$ 0	$ 0

Loan Servicing (Narrative) (Det

Loan Servicing (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Transfers and Servicing of Financial Assets [Abstract]
Serviced sold mortgage loans	$ 1,310,000	$ 1,270,000	$ 1,310,000	$ 1,270,000	$ 1,280,000
Serviced sold mortgage loans with recourse	4,300	5,700	4,300	5,700	5,400
Mortgage Loans Sold with Recourse, Reserve	270		270		$ 454
Servicing fees included in other service income	$ 900	$ 800	$ 2,500	$ 2,500

Loan Servicing (Activity For MS

Loan Servicing (Activity For MSRs And Related Valuation Allowance) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Servicing Asset at Amortized Value, Balance [Roll Forward]
Carrying amount, net, beginning of period	$ 8,880,000	$ 8,561,000	$ 9,008,000	$ 8,613,000
Additions	747,000	476,000	1,618,000	1,283,000
Amortization	(522,000)	(436,000)	(1,312,000)	(1,266,000)
Changes in valuation inputs & assumptions	(360,000)	211,000	(569,000)	182,000
Carrying amount, net, end of period	8,745,000	8,812,000	8,745,000	8,812,000
Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward]
Valuation allowance, beginning of period	751,000	855,000	542,000	826,000
Changes in valuation allowance	360,000	211,000	569,000	(182,000)
Valuation allowance, end of period	$ 1,111,000	$ 644,000	$ 1,111,000	$ 644,000

Fair Value (Narrative) (Details

Fair Value (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 15,204,000		$ 15,204,000		$ 7,306,000
Impaired Financing Receivable, Carrying Value	73,766,000		$ 73,766,000		76,473,000
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			$ 22,201,000		28,705,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	4,232,000		4,232,000		4,191,000
Impaired Financing Receivable, Related Allowance	4,232,000		4,232,000		4,191,000
Impaired Loan Fair Value	7,876,000		7,876,000		9,496,000
Partial Charge-Offs On Impaired Loans carried at Fair Value			3,929,000		10,512,000
Book Value Of Impaired Loans Carried At Fair Value	8,918,000		8,918,000		11,783,000
Impaired Financing Receivable, carried at fair value, related expense	2,900,000	$ (100,000)	1,900,000	$ (1,800,000)
MSR recorded at lower of cost or fair value	8,745,000	8,812,000	8,745,000	8,812,000	9,008,000	$ 8,880,000	$ 8,561,000	$ 8,613,000
Mortgage Servicing Rights Fair Value	4,300,000		4,300,000		1,900,000
Valuation allowance of MSR	1,111,000	644,000	1,111,000	644,000	542,000	$ 751,000	$ 855,000	$ 826,000
MSRs recorded at cost	4,400,000		4,400,000		7,100,000
Changes due to fair value adjustments	360,000	211,000	569,000	(182,000)
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 14,941,000		$ 14,941,000		$ 18,651,000
Percent of OREO held at fair value	51.72%		51.72%		45.57396%
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Fair Value	$ 7,700,000		$ 7,700,000		$ 8,500,000
OREO valuation adjustments	233,000	$ 718,000	572,000	$ 1,273,000
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	1,042,000		1,042,000		2,287,000
Financing Receivable, not collateral dependent [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	3,190,000		3,190,000		1,904,000
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	525,000		525,000		381,000
Residential Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets	$ 2,150,000		$ 2,150,000		3,059,000
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					3,698,000
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					$ 1,882,000
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			69.00%		71.00%
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			85.00%		85.00%
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%		45.90%
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%		96.70%
Sales Comparison Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			61.80%		61.80%
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			23.00%		26.90%
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			27.40%		24.30%
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			21.90%		20.30%
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			15.40%		12.50%
Sales Comparison Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			30.20%		23.00%
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			0.00%		2.00%
Sales Comparison Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [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] | 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] | Residential Real Estate [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] | Other Real Estate Owned, Residential [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Comparability Adjustments			2.80%		0.10%
Income Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate			14.00%		9.50%
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			11.00%		13.30%
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			10.00%		10.10%
Income Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate			9.90%		9.50%
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			10.10%		9.50%
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			10.00%		9.10%
Income Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Cap Rate			9.50%		9.50%
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			7.00%		7.00%
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			10.00%		3.80%
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			50.00%		50.00%
Cost 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, Accumulated Depreciation			50.00%		50.00%
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			38.20%		50.00%
Cost 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, Accumulated Depreciation			50.00%		43.40%
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%		50.00%
Cost 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, Accumulated Depreciation			50.00%		33.30%
Bulk Sale Approach Valuation Technique [Member] | Maximum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Discount Rate			15.00%		15.00%
Bulk Sale Approach Valuation Technique [Member] | Weighted Average [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [Member] | Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Discount Rate			15.00%		15.00%
Bulk Sale Approach Valuation Technique [Member] | Minimum [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Inputs, Discount Rate			15.00%		15.00%

Fair Value (Assets And Liabilit

Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 239,998	$ 149,459
Mortgage loans held for sale	15,204	7,306
Investment securities	1,425,387	1,587,694
Loans Held-for-sale, Fair Value Disclosure	15,204	7,306
Impaired Loan Fair Value	7,876	9,496
Other Assets, Fair Value Disclosure	5,090,488	4,997,318
Loans Receivable, Fair Value Disclosure	5,113,869	5,014,285
Noninterest Bearing Deposit Liabilities Fair Value	1,429,024	1,404,032
Interest bearing transactions accounts	1,227,995	1,107,200
Savings accounts	1,716,951	1,544,708
Time deposits	1,145,680	1,295,329
Other Liabilities, Fair Value Disclosure	5,401	1,290
Deposits, Fair Value Disclosure	5,525,051	5,352,559
Short Term Borrowings Fair Value	218,214	394,242
Long-term debt	777,696	771,420
Subordinated Debt Obligations, Fair Value Disclosure	40,964	41,596
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	239,998	149,459
Mortgage IRLCs	0	0
Investment securities	2,028	1,941
Noninterest Bearing Deposit Liabilities Fair Value	1,429,024	1,404,032
Interest bearing transactions accounts	1,227,995	1,107,200
Savings accounts	1,716,951	1,544,708
Other Liabilities, Fair Value Disclosure	5,401	1,290
Deposits, Fair Value Disclosure	4,379,371	4,057,230
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	301	165
Investment securities	1,422,580	1,584,984
Loans Held-for-sale, Fair Value Disclosure	15,204	7,306
Loans Receivable, Fair Value Disclosure	15,505	7,471
Time deposits	1,145,680	1,295,329
Deposits, Fair Value Disclosure	1,145,680	1,295,329
Short Term Borrowings Fair Value	218,214	394,242
Long-term debt	777,696	771,420
Subordinated Debt Obligations, Fair Value Disclosure	40,964	41,596
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	0	0
Investment securities	779	769
Impaired Loan Fair Value	7,876	9,496
Other Assets, Fair Value Disclosure	5,090,488	4,997,318
Loans Receivable, Fair Value Disclosure	5,098,364	5,006,814
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	15,204	7,306
Mortgage IRLCs	301	165
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	15,204	7,306
Mortgage IRLCs	301	165
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	269,145	522,063
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	269,145	522,063
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	952,897	911,493
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	952,897	911,493
Fair Value, Measurements, Recurring [Member] | Other Equity Securities [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	2,807	2,710
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	2,028	1,941
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	779	769
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	3,376	4,436
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	3,376	4,436
Loans Receivable [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued interest receivable	14,575	14,239
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued interest receivable	14,575	14,239
Deposits [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	977	987
Deposits [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	75	66
Deposits [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	902	921
Borrowings [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	1,327	1,351
Borrowings [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure		4
Borrowings [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrued Liabilities, Fair Value Disclosure	$ 1,327	$ 1,347

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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning	$ 821	$ 744	$ 769	$ 776
Included in earnings - realized	0	0	0	0
Included in other comprehensive income	(42)	13	10	(19)
Periodic, sales, issuances and settlements, other	0	0	0	0
Periodic settlement of fair value swap	0	0	0	0
Balance, ending	779	757	779	757
Fair Value Swap [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, Beginning of Period	(226)	(226)	(226)	(226)
Included in earnings - unrealized	0	0	0	0
Included in other comprehensive income	0	0	0	0
Purchases, sales, issuances and settlements, other	0	0	0	0
Periodic settlement of fair value swap	0	0	0	0
Balance, End of Period	$ (226)	$ (226)	$ (226)	$ (226)

Fair Value (Fair Value Of Finan

Fair Value (Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	$ 239,998	$ 149,459
Investment securities	1,425,387	1,587,694
Federal Home Loan Bank Stock	50,086	50,086
Federal Reserve Bank Stock	8,225	8,225
Loans Held-for-sale, Fair Value Disclosure	15,204	7,306
Impaired Loan Fair Value	7,876	9,496
Other loans	5,090,488	4,997,318
Loans receivable, net	5,113,869	5,014,285
Noninterest bearing checking accounts	1,429,024	1,404,032
Interest bearing transactions accounts	1,227,995	1,107,200
Savings accounts	1,716,951	1,544,708
Time deposits	1,145,680	1,295,329
Other	5,401	1,290
Total deposits	5,525,051	5,352,559
Short-term borrowings	218,214	394,242
Long-term debt	777,696	771,420
Subordinated debentures/notes	40,964	41,596
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	3,376	4,436
Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	14,575	14,239
Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	977	987
Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,327	1,351
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	239,998	149,459
Investment securities	1,419,944	1,585,568
Loans Held-for-sale, Fair Value Disclosure	15,204	7,306
Derivative Assets	301	165
Impaired Loan Fair Value	7,876	9,496
Other loans	5,110,061	4,994,624
Loans receivable, net	5,133,442	5,011,591
Noninterest bearing checking accounts	1,429,024	1,404,032
Interest bearing transactions accounts	1,227,995	1,107,200
Savings accounts	1,716,951	1,544,708
Time deposits	1,140,288	1,290,412
Other	5,401	1,290
Total deposits	5,519,659	5,347,642
Short-term borrowings	218,214	394,242
Long-term debt	742,723	738,105
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	3,376	4,436
Reported Value Measurement [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	14,575	14,239
Reported Value Measurement [Member] | Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	977	987
Reported Value Measurement [Member] | Borrowings [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest payable	1,328	1,351
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	$ 301	165
Impaired Loan Fair Value		$ 9,496

Fair Value Qualitative informat

Fair Value Qualitative information about Level 3 fair value measurements (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	$ 5,113,869	$ 5,014,285
Impaired Loan Fair Value	7,876	9,496
Other Assets, Fair Value Disclosure	5,090,488	4,997,318
Loans Held-for-sale, Fair Value Disclosure	15,204	7,306
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	5,098,364	5,006,814
Impaired Loan Fair Value	7,876	9,496
Other Assets, Fair Value Disclosure	5,090,488	4,997,318
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	7,876	9,496
Other Assets, Fair Value Disclosure	7,727	8,515
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	7,876	9,496
Other Assets, Fair Value Disclosure	7,727	8,515
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	3,348	3,387
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	3,348	3,387
Fair Value, Measurements, Nonrecurring [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	3,374	3,698
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	$ 3,374	3,698
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		$ 3,698
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	7.00%	7.00%
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%	50.00%
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%	45.90%
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	11.00%	13.30%
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	50.00%	50.00%
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	21.90%	20.30%
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	10.10%	9.50%
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	38.20%	50.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate, SEPH Commercial Land and Development [Member] | Loans Receivable [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired Loan Fair Value		$ 2,044
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate, SEPH Commercial Land and Development [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	5.00%	5.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate, SEPH Commercial Land and Development [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		10.70%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate, SEPH Commercial Land and Development [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	40.00%	40.00%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate, SEPH Commercial Land and Development [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		10.70%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate, SEPH Commercial Land and Development [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	22.50%	22.10%
Fair Value, Measurements, Nonrecurring [Member] | Construction Real Estate, SEPH Commercial Land and Development [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		10.70%
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		$ 1,872
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	15.60%	25.30%
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%	10.70%
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	1.60%	1.00%
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	$ 1,254	$ 2,332
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	$ 1,254	2,332
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired Loan Fair Value		$ 1,882
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	0.00%	0.00%
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	10.00%	3.80%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Minimum [Member] | Cost Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Accumulated Depreciation	50.00%	33.30%
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%	96.70%
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	10.00%	10.10%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [Member] | Loans Receivable [Member] | Maximum [Member] | Cost Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Accumulated Depreciation	50.00%	50.00%
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	15.40%	12.50%
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	10.00%	9.10%
Fair Value, Measurements, Nonrecurring [Member] | Residential Real Estate [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	50.00%	43.40%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	0.00%	2.00%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	9.50%	9.50%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	69.00%	71.00%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member] | Maximum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	14.00%	9.50%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [Member] | Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 3,125	$ 2,796
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [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	23.00%	26.90%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Commercial [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	9.90%	9.50%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [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] | Other Real Estate Owned, Construction [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] | Other Real Estate Owned, Construction [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	85.00%	85.00%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [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] | Other Real Estate Owned, Construction [Member] | Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 3,348	$ 3,387
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [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	27.40%	24.30%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Construction [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] | Other Real Estate Owned, Residential [Member] | Minimum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	2.80%	0.10%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] | Maximum [Member] | Sales Comparison Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	61.80%	61.80%
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [Member] | Real Estate [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Other Assets, Fair Value Disclosure	$ 1,254	$ 2,332
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned, Residential [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	30.20%	23.00%
Construction Real Estate, SEPH Commercial Land and Development [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	$ 1,700	$ 2,044
Construction Real Estate, SEPH Commercial Land and Development [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	1,700	2,044
Construction Real Estate - Remaining Commercial [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans Receivable, Fair Value Disclosure	861	1,872
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	861	1,872
Fair Value [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired Loan Fair Value		$ 9,496
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	3,374
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	1,941
Fair Value [Member] | Construction Real Estate, SEPH Commercial Land and Development [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	1,700
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	$ 861

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	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 15,204	$ 7,306
Loans Receivable, Fair Value Disclosure	5,113,869	5,014,285
Other Assets, Fair Value Disclosure	5,090,488	4,997,318
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	15,204	7,306
Loans Receivable, Fair Value Disclosure	15,505	7,471
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	5,098,364	5,006,814
Other Assets, Fair Value Disclosure	5,090,488	4,997,318
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	7,876	9,496
Servicing Asset at Fair Value, Amount	4,319	1,867
Other Assets, Fair Value Disclosure	7,727	8,515
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	4,319	1,867
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	7,876	9,496
Other Assets, Fair Value Disclosure	7,727	8,515
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	3,374	3,698
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	3,374	3,698
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	1,254	2,332
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	1,254	2,332
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	3,348	3,387
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	3,348	3,387
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	3,125	2,796
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	3,125	2,796
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	1,941	1,882
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	1,941	1,882
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	861	1,872
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	861	1,872
Construction Real Estate, SEPH Commercial Land and Development [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	1,700	2,044
Construction Real Estate, SEPH Commercial Land and Development [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	1,700	2,044
Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	15,204	7,306
Loans Receivable, Fair Value Disclosure	5,133,442	5,011,591
Other Assets, Fair Value Disclosure	5,110,061	$ 4,994,624
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	3,374
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	1,941
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	861
Fair Value [Member] | Construction Real Estate, SEPH Commercial Land and Development [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	$ 1,700

Fair Value Fair Value (Impaired

Fair Value Fair Value (Impaired Financing Receivables Additional Information) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Schedule of Impaired Financing Receivables Additional Information [Line Items]
Book Value Of Impaired Loans Carried At Fair Value	$ 8,918	$ 11,783
Partial Charge-Offs On Impaired Loans carried at Fair Value	3,929	10,512
Impaired Financing Receivable, Related Allowance	4,232	4,191
impaired Financing Receivable, loans not held at Fair Value, Carrying Amount	65,890	66,977
Impaired Financing Receivable, Recorded Investment	77,998	80,664	$ 69,224
Impaired Loan Fair Value	7,876	9,496
Impaired Financing Receivable, loans not held at Fair Value, Recorded Investment	69,080	68,881
Partial Charge-offs on Impaired Loans carried at Cost	18,272	18,193
Impaired Financing Receivable, Carrying Value	73,766	76,473
Partial Charge-Offs On Impaired Loans	22,201	28,705
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	4,232	4,191
Financing Receivable, not collateral dependent [Domain]
Schedule of Impaired Financing Receivables Additional Information [Line Items]
Impaired Financing Receivable, Related Allowance	3,190	1,904
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain]
Schedule of Impaired Financing Receivables Additional Information [Line Items]
Impaired Financing Receivable, Related Allowance	$ 1,042	$ 2,287

Other Comprehensive Income (L75

Other Comprehensive Income (Loss) (Component Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive loss before reclassifications	$ (2,182)	$ 6,551	$ 13,850	$ 6,179
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0	0	0	0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, before Tax	0	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(2,182)	6,551	13,850	6,179
Other comprehensive income (loss)	(2,182)	6,551	13,850	6,179
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	(2,182)	6,551	13,850	6,179
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax		0	0	0
Changes in pension plan assets and benefit obligations, Net-of-tax amount	(15,351)	(14,865)	(15,351)	(14,865)	$ 15,351	$ 15,351	$ 14,865	$ 14,865
Unrealized gains on available-for-sale securities, Net-of-tax amount	13,558	7,436	13,558	7,436	15,740	(292)	885	1,257
Total accumulated other comprehensive income (loss), Net-of-tax amount	$ (1,793)	$ (7,429)	(1,793)	$ (7,429)	$ 389	$ (15,643)	$ (13,980)	$ (13,608)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, before Tax			$ 0

Investment in Qualified Affor76

Investment in Qualified Affordable Housing (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Amortization Method Qualified Affordable Housing Project Investments, Amortization	$ 1,800	$ 1,700	$ 5,500	$ 5,200
Affordable Housing Program Obligation	24,756		24,756		$ 20,311
Affordable Housing Tax Credits and Other Tax Benefits, Amount	2,300	$ 2,300	7,000	$ 6,800
Qualified Affordable Housing [Domain]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	$ 54,757		$ 54,757		$ 51,247

Repurchase Agreement Borrowin77

Repurchase Agreement Borrowings (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	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	$ 518,214	$ 554,242
Pledged Assets Separately Reported, Securities Pledged for Repurchase Agreements, at Fair Value	572,000	622,000
Available unpledged securities	465,000	583,000
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	6,000	9,800
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	217,110	247,618
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	2,239
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	$ 304,385

Contingent Liabilities (Details

Contingent Liabilities (Details) $ in Millions	Sep. 30, 2016USD ($)
Loss Contingencies [Line Items]
Loss Contingency Accrual	$ 2.3

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Thousands	Oct. 28, 2016	Sep. 30, 2016	Oct. 20, 2016
Subsequent Event [Line Items]
Federal Funds Sold		$ 220,500
Weighted Average Rate Federal funds Sold		0.00%
Subsequent Event [Member]
Subsequent Event [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties	$ 5,600
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate			3.15%
Federal Home Loan Bank, Advances, anticipated expense	1,575
Federal Home Loan Bank Certificates and Obligations (FHLB) [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties	$ 50,000