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Subsequent Events Subsequent Events (Details) - USD ($) $ / shares in Units, shares in Millions | Feb. 01, 2022 | Jan. 26, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Commercial Portfolio Segment [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Loans held for investment |  |  | $ 1,475,500,000 | $ 2,153,900,000
Subsequent Event | GWB Acquisition |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued | 46.9 |  |  |
Cash | $ 1,700,000,000 |  |  |
Subsequent Event | GWB Acquisition | Scott Family |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Business Acquisition, Transaction Costs | 8,200,000 |  |  |
Foundation Donation | $ 21,500,000 |  |  |
Class A Common Stock | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Dividends (in dollars per share) |  | $ 0.41 |  |

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- Definition Foundation Donation + References No definition available. + Details
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- Definition Gross carrying amount of all categories of loans and leases held in the portfolio, excluding loans held for sale. + References No definition available. + Details
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- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. + References No definition available. + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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