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Derivatives (Tables) | 12 Months Ended
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Dec. 31, 2016
Derivatives [Abstract] |
Fair Values of Derivative Financial Instruments | ﻿
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﻿ |  |  |  |  |  |  |  |  |  | Fair Values (1)
﻿ |  |  |  | Notional Amounts |  | Assets |  | Liabilities
﻿ |  | Type of |  | December 31, |  | December 31, |  | December 31,
﻿(in thousands) |  | Hedge |  | 2016 |  | 2015 |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Derivatives designated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Interest rate swaps |  | Cash Flow |  | $ | 1,100,000 |  | $ | 500,000 |  | $ | — |  | $ | — |  | $ | 7,787 |  | $ | 281
﻿ |  |  |  | $ | 1,100,000 |  | $ | 500,000 |  | $ | — |  | $ | — |  | $ | 7,787 |  | $ | 281
﻿Derivatives not designated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Interest rate swaps (2) |  | N/A |  | $ | 979,391 |  | $ | 780,871 |  | $ | 18,405 |  | $ | 20,622 |  | $ | 18,362 |  | $ | 21,007
﻿Risk participation agreements |  | N/A |  |  | 84,732 |  |  | 83,430 |  |  | 50 |  |  | 83 |  |  | 105 |  |  | 162
﻿Forward commitments to sell |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿residential mortgage loans |  | N/A |  |  | 75,676 |  |  | 55,128 |  |  | 900 |  |  | 263 |  |  | 221 |  |  | 336
﻿Interest rate-lock commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿on residential mortgage loans |  | N/A |  |  | 46,840 |  |  | 38,853 |  |  | 189 |  |  | 243 |  |  | 228 |  |  | 167
﻿Foreign exchange forward |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿contracts |  | N/A |  |  | 56,152 |  |  | 44,068 |  |  | 771 |  |  | 2,040 |  |  | 729 |  |  | 2,015
﻿ |  |  |  | $ | 1,242,791 |  | $ | 1,002,350 |  | $ | 20,315 |  | $ | 23,251 |  | $ | 19,645 |  | $ | 23,687
﻿
| (1) |  | Derivative assets and liabilities are reported with other assets or other liabilities, respectively, in the consolidated balance sheets.
| (2) |  | The notional amount represents both the customer accommodation agreements and offsetting agreements with unrelated financial institutions
Offsetting Derivative Assets and Liabilities Subject to Master Netting Arrangements |
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﻿As of December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  | Gross Amounts Offset in the |  | Net Amounts Presented in the |  | Gross Amounts Not Offset in the Statement of Financial Position
﻿(in thousands) |  | Gross Amounts Recognized |  | Statement of Financial Position |  | Statement of Financial Position |  | Financial Instruments |  | Cash Collateral |  | Net Amount
﻿Derivative Assets |  | $ | 4,788 |  | $ | — |  | $ | 4,788 |  | $ | 4,788 |  | $ | — |  | $ | —
﻿Derivative Liabilities |  | $ | 26,846 |  | $ | — |  | $ | 26,846 |  | $ | 4,788 |  | $ | 19,095 |  | $ | 2,963
﻿ ﻿
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﻿As of December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  | Gross Amounts Offset in the |  | Net Amounts Presented in the |  | Gross Amounts Not Offset in the Statement of Financial Position
﻿(in thousands) |  | Gross Amounts Recognized |  | Statement of Financial Position |  | Statement of Financial Position |  | Financial Instruments |  | Cash Collateral |  | Net Amount
﻿Derivative Assets |  | $ | 224 |  | $ | — |  | $ | 224 |  | $ | 224 |  | $ | — |  | $ | —
﻿Derivative Liabilities |  | $ | 21,034 |  | $ | — |  | $ | 21,034 |  | $ | 224 |  | $ | 23,482 |  | $ | (2,672)
﻿

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- Definition Tabular disclosure of derivative assets and liabilities that are subject to offsetting, including master netting arrangements. + References No definition available. + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 + Details
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