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FAIR VALUE - Valuation Methodology and Unobservable Inputs for Level 3 Assets (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) item | Dec. 31, 2019 USD ($)
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Loans and Leases Receivable, Gross | $ 4,484,767 |  | $ 4,657,183 |
Loans and Leases Receivable, Allowance | 71,844 | $ 53,609 | 61,408 | $ 50,652
Provision for credit losses | 1,477 | 6,600 |  |
Fair Value, Measurements, Nonrecurring [Member] |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Impaired loans | $ 5,539 |  | 6,765 |
Commercial and industrial loans |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology | Collateral basedmeasurements |  |  |
Loans and Leases Receivable, Gross | $ 1,676,464 |  | 1,791,378 |
Loans and Leases Receivable, Allowance | 32,052 | 24,739 | $ 28,333 | 25,789
Provision for credit losses | $ (540) | 2,628 |  |
Commercial and industrial loans | Fair Value, Measurements, Nonrecurring [Member] |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology |  |  | Collateral basedmeasurements |
Unobservable Inputs | Discount to reflect current market conditions and ultimate collectability |  | Discount to reflect current market conditions and ultimate collectability |
Commercial and industrial loans | Fair Value, Measurements, Nonrecurring [Member] | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Impaired loans | $ 4,464 |  | $ 5,082 |
Commercial and industrial loans | Fair Value, Measurements, Nonrecurring [Member] | Minimum | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 22 |  | 16 |
Commercial and industrial loans | Fair Value, Measurements, Nonrecurring [Member] | Maximum | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 100 |  | 100 |
Commercial and industrial loans | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 61 |  | 55 |
Commercial real estate and multi-family residential loans |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology | Collateral basedmeasurements |  |  |
Loans and Leases Receivable, Allowance | $ 29,445 | 18,658 | $ 22,907 | 15,796
Provision for credit losses | $ 2,285 | 2,750 |  |
Commercial real estate and multi-family residential loans | Fair Value, Measurements, Nonrecurring [Member] |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology |  |  | Collateral basedmeasurements |
Unobservable Inputs | Discount to reflect current market conditions and ultimate collectability |  | Discount to reflect current market conditions and ultimate collectability |
Commercial real estate and multi-family residential loans | Fair Value, Measurements, Nonrecurring [Member] | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Impaired loans | $ 710 |  | $ 1,211 |
Commercial real estate and multi-family residential loans | Fair Value, Measurements, Nonrecurring [Member] | Minimum | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 25 |  | 21 |
Commercial real estate and multi-family residential loans | Fair Value, Measurements, Nonrecurring [Member] | Maximum | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 73 |  | 74 |
Commercial real estate and multi-family residential loans | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 67 |  | 53 |
Consumer 1-4 family loans |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology | Collateral basedmeasurements |  |  |
Loans and Leases Receivable, Allowance | $ 3,384 | 2,475 | $ 2,619 | $ 2,086
Provision for credit losses | $ (233) | $ 395 |  |
Consumer 1-4 family loans | Fair Value, Measurements, Nonrecurring [Member] |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology |  |  | Collateral basedmeasurements |
Unobservable Inputs | Discount to reflect current market conditions and ultimate collectability |  | Discount to reflect current market conditions and ultimate collectability |
Consumer 1-4 family loans | Fair Value, Measurements, Nonrecurring [Member] | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Impaired loans | $ 322 |  | $ 411 |
Consumer 1-4 family loans | Fair Value, Measurements, Nonrecurring [Member] | Minimum | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) |  |  | 10 |
Consumer 1-4 family loans | Fair Value, Measurements, Nonrecurring [Member] | Maximum | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) |  |  | 15 |
Consumer 1-4 family loans | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 9 |  | 11 |
Agribusiness and Agricultural |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology | Collateral basedmeasurements |  |  |
Agribusiness and Agricultural | Fair Value, Measurements, Nonrecurring [Member] |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Valuation Methodology |  |  | Collateral basedmeasurements |
Unobservable Inputs | Discount to reflect current market conditions and ultimate collectability |  | Discount to reflect current market conditions and ultimate collectability |
Agribusiness and Agricultural | Fair Value, Measurements, Nonrecurring [Member] | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Impaired loans | $ 43 |  | $ 61 |
Agribusiness and Agricultural | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average | Collateral Based Measurements | Measurement Input, Discount Rate |  |  |  |
Valuation Methodology and Unobservable Inputs For Level 3 Assets Measured At Fair Value [Line Items] |  |  |  |
Range of Inputs (Average) (in hundredths) | 70 |  | 58 |

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- Definition This element represents the aggregate of the impaired loans reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
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