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Loans and Leases Receivable and Allowance for Credit Losses - Schedule of Loan Purchases and Sales (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Purchases | $ 115,849 | $ 192,256
Sales | $ 39,534 | $ 1,822
Purchase price as a percentage of loans outstanding | 101.00% | 100.60%
Net gain on sale of loans | $ 1,600 | $ 11
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Purchases | 0 | 495
Installment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Purchases | 115,849 | 191,761
Sales | 0 | 1,822
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Sales | 18,931 | 0
Commercial real estate owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Sales | 2,237 | 0
Commercial real estate non-owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Sales | $ 18,366 | $ 0

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- Definition Amount of decrease from sale and reclassification to held-for-sale of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 11 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919244-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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