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Investment Securities - Additional Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) security shares | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) shares | Sep. 30, 2021 USD ($) security shares | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items] |  |  |  |  |  |
Accrued interest receivable | $ 46,751 |  |  | $ 46,751 |  | $ 49,303
Carrying Value Of Investment Securities Pledged | 3,500,000 |  |  | 3,500,000 |  | 3,600,000
Gain (loss) on sale of investment securities | $ (1,259) | $ (1,121) |  | (39) | $ 11,125 |
Fees paid to counterparties |  |  |  | $ 3,800 |  |
Number of available for sale debt securities in unrealized loss positions | security | 213 |  |  | 213 |  |
Gross Gains on Sales of Investment Securities | $ 110 |  |  | $ 3,785 | 14,257 |
Visa Class B Restricted Securities |  |  |  |  |  |
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items] |  |  |  |  |  |
Gain (loss) on sale of investment securities |  |  |  |  | $ 11,200 |
Equity securities remaining, shares | shares | 0 |  | 80,214 | 0 |  |
Conversion ratio |  |  |  | 0.016228 |  |
Gross Gains on Sales of Investment Securities |  |  | $ 14,200 |  |  |
Available-for-sale Securities |  |  |  |  |  |
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items] |  |  |  |  |  |
Accrued interest receivable | $ 7,900 |  |  | $ 7,900 |  | 6,600
Held-to-maturity Securities |  |  |  |  |  |
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items] |  |  |  |  |  |
Accrued interest receivable | $ 9,000 |  |  | $ 9,000 |  | $ 6,800

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- Definition The carrying value, as of the date of each statement of financial position presented, of investment securities, classified as available for sale or held to maturity, which are owned but transferred to serve as collateral to secure deposits of government entities and securities sold under agreements to repurchase, and payment of the related debt obligation, primarily a secured borrowing or repurchase agreement. + References No definition available. + Details
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- Definition Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21521-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(5)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details
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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455 + Details
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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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