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Significant Accounting Policies - COVID-19 Pandemic (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) customer | Dec. 31, 2020 USD ($)
Paycheck Protection Program ("PPP") |  |
Percentage of remaining loan maintains government guarantee | 100.00% |
Paycheck Protection Program |  |
Paycheck Protection Program ("PPP") |  |
Loans outstanding | $ 533.4 |
Amortized cost of the loans outstanding | $ 522.1 | $ 446.4
Number of customers | customer | 3,441 |
Paycheck Protection Program First Round [Member] |  |
Paycheck Protection Program ("PPP") |  |
Total loans | $ 749.4 |
New and existing customers | customer | 4,569 |
Loan forgiveness | $ 478.5 |
Forgiveness application amount | 131.6 |
Net fee income accretion | 3.3 |
Paycheck Protection Program Second Round [Member] |  |
Paycheck Protection Program ("PPP") |  |
Total loans | $ 262.5 |
New and existing customers | customer | 2,123 |
Net fee income accretion | $ 0.3 |

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- Definition Amount of loan forgiveness application on behalf of borrowers submitted to SBA related to the PPP (Paycheck Protection Program). + References No definition available. + Details
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- Definition Net fees income accretion recognized during the period. + References No definition available. + Details
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- Definition Amount, before allowance for credit loss and fee, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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