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Securities Sold Under Agreements to Repurchase (Tables) | 3 Months Ended
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Mar. 31, 2021
Transfers and Servicing [Abstract] |
Carrying value of repurchase agreements | The following table summarizes the carrying value of the Company’s securities sold under agreements to repurchase (“repurchase agreements”) by remaining contractual maturity of the agreements and category of collateral:
| Overnight and Continuous
(Dollars in thousands) | March 31, 2021 |  | December 31, 2020
State and local governments | $ | 418,077 |  |  |  |  |  |  | 787,016 |  |  |  |  |
Corporate bonds | 175,522 |  |  |  |  |  |  | 217,567 |  |  |  |  |
Residential mortgage-backed securities | 391,505 |  |  |  |  |  |  | — |  |  |  |  |
Commercial mortgage-backed securities | 11,774 |  |  |  |  |  |  | — |  |  |  |  |
Total | $ | 996,878 |  |  |  |  |  |  | 1,004,583 |  |  |  |  |

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- Definition Tabular disclosure of the nature and risks of short-term collateralized financing obtained through repurchase agreements, securities lending transactions and repurchase-to-maturity transactions, accounted for as secured borrowings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 + Details
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