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Business Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Disaggregation of Revenue [Line Items] |  |
Fixed income | $ 95,635 | $ 53,749
Deposit transactions and cash management | 30,290 | 31,621
Brokerage, management fees and commissions | 15,405 | 12,633
Bankcard income | 7,253 | 6,952
Trust services and investment management | 7,195 | 7,026
Bank-owned life insurance (BOLI) | 4,589 | 4,402
Equity securities gains/(losses), net | 25 | 31
All other income and commissions (Note 7) | 14,364 | 24,631
Total noninterest income | 174,756 | 141,045
Regional Banking |  |
Disaggregation of Revenue [Line Items] |  |
Fixed income | 121 | 17
Deposit transactions and cash management | 28,812 | 30,003
Brokerage, management fees and commissions | 15,405 | 12,630
Bankcard income | 7,150 | 7,039
Trust services and investment management | 7,213 | 7,056
Bank-owned life insurance (BOLI) | 0 | 0
Equity securities gains/(losses), net | 0 | 0
All other income and commissions (Note 7) | 23,170 | 16,284
Total noninterest income | 81,871 | 73,029
Fixed Income |  |
Disaggregation of Revenue [Line Items] |  |
Fixed income | 95,514 | 53,732
Deposit transactions and cash management | 0 | 3
Brokerage, management fees and commissions | 0 | 0
Bankcard income | 0 | 0
Trust services and investment management | 0 | 0
Bank-owned life insurance (BOLI) | 0 | 0
Equity securities gains/(losses), net | 0 | 0
All other income and commissions (Note 7) | 209 | 72
Total noninterest income | 95,723 | 53,807
Corporate |  |
Disaggregation of Revenue [Line Items] |  |
Fixed income | 0 | 0
Deposit transactions and cash management | 1,435 | 1,563
Brokerage, management fees and commissions | 0 | 0
Bankcard income | 70 | 62
Trust services and investment management | (18) | (30)
Bank-owned life insurance (BOLI) | 4,589 | 4,402
Equity securities gains/(losses), net | 25 | 31
All other income and commissions (Note 7) | (9,819) | 7,325
Total noninterest income | (3,718) | 13,353
Non-Strategic |  |
Disaggregation of Revenue [Line Items] |  |
Fixed income | 0 | 0
Deposit transactions and cash management | 43 | 52
Brokerage, management fees and commissions | 0 | 3
Bankcard income | 33 | (149)
Trust services and investment management | 0 | 0
Bank-owned life insurance (BOLI) | 0 | 0
Equity securities gains/(losses), net | 0 | 0
All other income and commissions (Note 7) | 804 | 950
Total noninterest income | 880 | 856
Underwriting, portfolio advisory, and other noninterest income |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from contract with customer | $ 9,300 | $ 7,300

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- Definition Bankcard Other Income + References No definition available. + Details
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- Definition Acting as an agent, a broker-dealer may buy and sell securities on behalf of its customers. In return for such services, the broker-dealer charges a commission. Each time a customer enters into a buy or sell transaction, a commission is earned by the broker-dealer for its selling and administrative efforts. For securities purchased, the commission is recorded as a receivable from customers; for securities sold, it is recorded as reductions in the payable to customers. Commissions earned are usually related to the broker-dealer's customers' trading volume and the dollar amounts of the trades. In general, commissions are for smaller trades of exchange-listed stocks and bonds made by retail customers. Revenue recognized in the period for (1) performance (incentive) fees based on the investment results achieved for management of certain institutional accounts and hedge funds, (2) schedule-based fees earned for management of mutual funds and closed-end funds, based either on average daily net assets or on a combination of the average daily net assets and gross income, and (3) other investment management and advisory fees. + References No definition available. + Details
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- Definition Deposit transactions and cash management. + References No definition available. + Details
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- Definition The major component of revenue in this line item is generated from the purchase and sale of securities as both principal and agent, and from other fee sources including loan sales, portfolio advisory, and derivative sales. + References No definition available. + Details
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- Definition Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
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- Definition Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
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