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Borrowings - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Assets Sold Under Agreements To Repurchase [Line Items] |  |
Securities Sold Under Agreements to Repurchase | $ 450,490 | $ 600,590
Long-term Repurchase Agreements with Government Entities |  |
Assets Sold Under Agreements To Repurchase [Line Items] |  |
Securities Sold Under Agreements to Repurchase | $ 500 | 500
Repurchase agreements, Weighted average interest rate (as a percent) | 1.55% |
Repurchase agreement counterparty, weighted average maturity of agreements | 2 years 10 months 24 days |
Long-term Repurchase Agreements with Private Institutions |  |
Assets Sold Under Agreements To Repurchase [Line Items] |  |
Securities Sold Under Agreements to Repurchase | $ 450,000 | $ 600,000
Repurchase agreements, Weighted average interest rate (as a percent) | 2.46% |
Repurchase agreement counterparty, weighted average maturity of agreements | 3 years |
Long-term Repurchase Agreements with Private Institutions | Minimum [Member] |  |
Assets Sold Under Agreements To Repurchase [Line Items] |  |
Repurchase agreement remaining weighted average term range | 2024 |
Long-term Repurchase Agreements with Private Institutions | Maximum |  |
Assets Sold Under Agreements To Repurchase [Line Items] |  |
Repurchase agreement remaining weighted average term range | 2026 |

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- Definition Weighted average maturity (weighted by amount of the agreement) of repurchase agreements with the counterparty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(iii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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- Definition Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(i)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(1)(ii)(A)(i)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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