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Acquisitions and Divestiture (Schedule of Fair Value of Net Assets Acquired Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Business Acquisition [Line Items] |  |
Goodwill | $ 791,157 | $ 745,523
Capital One [Member] |  |
Business Acquisition [Line Items] |  |
Accounts receivable | 2,803 |
Identifiable intangible assets | 27,377 |
Total identifiable assets | 30,180 |
Deposit liabilities | 217,432 |
Other liabilities | 151 |
Total liabilities | 217,583 |
Net liabilities assumed | (187,403) |
Consideration received | 141,769 |
Goodwill | $ 45,634 |

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- Definition Amount of assets acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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