Mortgage Loans Serviced for Others, Amount

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- Definition

Servicing Asset, Agreement Term

+ References

No definition available.

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- Definition

Servicing Asset At Amortized Cost, Amortization, Term

+ References

No definition available.

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- Definition

Valuation servicing rights in tranches [Line Items]

+ References

No definition available.

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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- Definition

Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans.

+ References

No definition available.

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- Definition

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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- Definition

Fair value of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7516967&loc=d3e66267-113978

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- Definition

Amount of increase (decrease) in the amortized amount from a decrease (increase) in the valuation allowance applied to the servicing asset for a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

+ Details

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- Definition

Value of input used to measure servicing asset.

+ 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

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Balance Type:	na
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- Definition

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122596-111746

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- Definition

Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

+ References

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GOODWILL, CORE DEPOSIT PREMIUM AND OTHER INTANGIBLE ASSETS (Mortgage and commercial loans servicing narrative) (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Valuation servicing rights in tranches [Line Items]
Loans guaranteed and sold with servicing retained	$ 6,953,000		$ 6,052,000
Valuation allowance	1,400,000
First Bank & Trust
Valuation servicing rights in tranches [Line Items]
Mortgage loans serviced for others	745,100,000		743,300,000
Custodial escrow balances maintained	$ 9,400,000		$ 5,700,000
Mortgage servicing rights
Valuation servicing rights in tranches [Line Items]
Average constant prepayment rate	14.20%		16.20%
Servicing assets, discount rate	9.02%		9.02%
Fees collected for servicing of mortgage loans	$ 464,000	$ 409,000
Mortgage servicing rights \| Measurement Input, Cap Rate \| Minimum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)	0.0076	0.0095
Mortgage servicing rights \| Measurement Input, Cap Rate \| Maximum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)	0.0112	0.0116
Mortgage servicing rights \| First Bank & Trust
Valuation servicing rights in tranches [Line Items]
Fair value of mortgage servicing rights	$ 6,200,000		$ 5,200,000
Commercial servicing rights
Valuation servicing rights in tranches [Line Items]
Fair value of mortgage servicing rights	1,239,000	$ 1,407,000	1,300,000
Loans guaranteed and sold with servicing retained	$ 62,400,000		$ 66,200,000
Commercial servicing rights \| Minimum
Valuation servicing rights in tranches [Line Items]
Average constant prepayment rate	13.83%		14.95%
Servicing assets, discount rate	6.89%		7.70%
Commercial servicing rights \| Maximum
Valuation servicing rights in tranches [Line Items]
Average constant prepayment rate	17.76%		19.25%
Servicing assets, discount rate	8.53%		12.88%
Commercial servicing rights \| Measurement Input, Cap Rate \| Minimum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)			0.0310
Commercial servicing rights \| Measurement Input, Cap Rate \| Maximum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)			0.0445
Mortgage Servicing Rights 15-year Tranche
Valuation servicing rights in tranches [Line Items]
Valuation allowance	$ 401,000		$ 422,000
Amortization period	15 years
Mortgage Servicing Rights 30-year Tranche
Valuation servicing rights in tranches [Line Items]
Valuation allowance			1,400,000
Amortization period	30 years
Less Than 20 Years
Valuation servicing rights in tranches [Line Items]
Fair value of mortgage servicing rights	$ 230,000		203,000
Fees collected for servicing of mortgage loans	$ 129,000	$ 118,000
Period of tranche	20 years
Valuation allowance	$ 0		$ 0
Amortization period	20 years		20 years
More Than 20 Years
Valuation servicing rights in tranches [Line Items]
Fair value of mortgage servicing rights	$ 1,009,000		$ 1,085,000
Period of tranche	20 years
Valuation allowance	$ 0		$ 0
Amortization period	20 years		20 years