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Securities Equity Securities - unrealized gains and losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Jun. 30, 2019 | Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract] |  |  |  |  |  |  |  |
Gains recognized during the period on equity securities | $ 0 |  | $ 0 | $ 16,425 | $ 0 |  |  |
Less: Gains recognized during the period on equity securities sold during the period | 0 |  | 0 | (3,000) | 0 |  |  |
Unrealized gains recognized during the reporting period on equity securities still held at the reporting date | $ 0 |  | 0 | $ 13,425 | 0 |  |  |
Visa Class B shares, shares sold |  | 17,360 |  |  |  |  |  |
Visa Class B shares, gain on sale |  | $ 3,000 |  |  |  |  |  |
Visa Class B shares, remaining shares | 77,683 |  |  | 77,683 |  |  |  |
Equity Securities | $ 13,425 | $ 13,425 | $ 0 | $ 13,425 | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Amount of unrealized and realized gain (loss) on 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=120269885&loc=SL75117546-209714 + 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=120269885&loc=SL75117546-209714 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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