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Revenue from Contracts with Customers (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | $ 14,759,000 | $ 13,312,000 | $ 41,800,000 | $ 41,336,000 |
Other sources of noninterest income | 36,715,000 | 33,190,000 | 104,564,000 | 127,878,000 |
Total noninterest income | 51,474,000 | 46,502,000 | 146,364,000 | 169,214,000 |
Contract with customer, asset, net | 0 |  | 0 |  | $ 0
Contract with Customer, Liability | 0 |  | 0 |  | $ 0
Consumer and Business Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 10,974,000 | 9,838,000 | 30,736,000 | 30,890,000 |
Other sources of noninterest income | 4,129,000 | 3,299,000 | 12,642,000 | 41,280,000 |
Total noninterest income | 15,103,000 | 13,137,000 | 43,378,000 | 72,170,000 |
Commercial Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 3,776,000 | 3,468,000 | 11,029,000 | 10,034,000 |
Other sources of noninterest income | 29,955,000 | 24,393,000 | 80,902,000 | 76,009,000 |
Total noninterest income | 33,731,000 | 27,861,000 | 91,931,000 | 86,043,000 |
Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 9,000 | 6,000 | 35,000 | 412,000 |
Other sources of noninterest income | 2,631,000 | 5,498,000 | 11,020,000 | 10,589,000 |
Total noninterest income | 2,640,000 | 5,504,000 | 11,055,000 | 11,001,000 |
Deposit service charges and related fee income |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 8,788,000 | 8,627,000 | 26,017,000 | 26,799,000 |
Deposit service charges and related fee income | Consumer and Business Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 5,345,000 | 5,488,000 | 15,975,000 | 17,240,000 |
Deposit service charges and related fee income | Commercial Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 3,434,000 | 3,133,000 | 10,007,000 | 9,147,000 |
Deposit service charges and related fee income | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 9,000 | 6,000 | 35,000 | 412,000 |
Card income |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 1,130,000 | 1,150,000 | 3,330,000 | 3,548,000 |
Card income | Consumer and Business Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 985,000 | 949,000 | 2,846,000 | 2,952,000 |
Card income | Commercial Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 145,000 | 201,000 | 484,000 | 596,000 |
Card income | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 0 | 0 | 0 | 0 |
Wealth management fees |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 4,841,000 | 3,535,000 | 12,453,000 | 10,989,000 |
Wealth management fees | Consumer and Business Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 4,644,000 | 3,401,000 | 11,915,000 | 10,698,000 |
Wealth management fees | Commercial Banking |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | 197,000 | 134,000 | 538,000 | 291,000 |
Wealth management fees | Other |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue from contracts with customers | $ 0 | $ 0 | $ 0 | $ 0 |

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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130533-203044 + Details
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044 + 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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