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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | $ 13,383 | $ 14,259
Other sources of noninterest income | 61,061 | 101,569
Total noninterest income | 74,444 | 115,828
Retail Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 9,880 | 10,110
Other sources of noninterest income | 34,568 | 3,454
Total noninterest income | 44,448 | 13,564
Commercial Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 3,345 | 4,044
Other sources of noninterest income | 24,093 | 21,690
Total noninterest income | 27,438 | 25,734
Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 158 | 105
Other sources of noninterest income | 2,400 | 76,425
Total noninterest income | 2,558 | 76,530
Deposit service charges and related fee income |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 9,186 | 8,684
Deposit service charges and related fee income | Retail Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 6,014 | 5,837
Deposit service charges and related fee income | Commercial Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 3,014 | 2,742
Deposit service charges and related fee income | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 158 | 105
Card income |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,244 | 1,240
Card income | Retail Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 1,070 | 1,027
Card income | Commercial Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 174 | 213
Card income | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 0 | 0
Wealth management fees |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 2,953 | 4,335
Wealth management fees | Retail Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 2,796 | 3,246
Wealth management fees | Commercial Banking |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | 157 | 1,089
Wealth management fees | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contracts with customers | $ 0 | $ 0

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- Definition The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 32 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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