Mortgage Loans Serviced for Others, Amount

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- Definition

Mortgage Servicing Rights, Number Of Loans Serviced

+ References

No definition available.

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- Definition

Servicing Asset, Agreement Term

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No definition available.

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- Definition

Servicing Asset At Amortized Cost, Amortization, Term

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- Definition

Servicing Asset At Fair Value, Unpaid Principal Balance

+ 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=6876686&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

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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- Definition

The net cash outflow or inflow associated with acquisition or sale of mortgage servicing rights which is the net carrying value of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating mortgage loans and then (a) transferring the loans to a Variable Interest Entity (VIE) in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
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-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

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- Definition

Decrease in servicing assets subsequently measured at fair value resulting from conveyance of servicing rights to unrelated parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
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-URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122625-111746

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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=99377789&loc=d3e19207-110258

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=68078379&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
	Apr. 30, 2019 USD ($)	Mar. 31, 2019 USD ($) loan	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Valuation servicing rights in tranches [Line Items]
Book value of servicing portfolio		$ 73,605,000		$ 78,551,000
Loans guaranteed and sold with servicing retained		28,968,000		31,072,000
Valuation allowance		589,000		58,000
Dubuque Bank and Trust Company
Valuation servicing rights in tranches [Line Items]
Mortgage loans serviced for others		3,350,000,000		3,450,000,000
Custodial escrow balances maintained		23,300,000		17,700,000
First Bank & Trust
Valuation servicing rights in tranches [Line Items]
Mortgage loans serviced for others		692,300,000		648,900,000
Custodial escrow balances maintained		8,700,000		5,900,000
Mortgage servicing rights
Valuation servicing rights in tranches [Line Items]
Book value of servicing portfolio		27,472,000		29,363,000
Fair value of mortgage servicing rights		$ 6,500,000		$ 7,100,000
Average constant prepayment rate		12.00%		10.30%
Servicing assets, discount rate		9.03%		9.03%
Fees collected for servicing of mortgage loans		$ 427,000
Mortgage servicing rights \| Measurement Input, Cap Rate \| Minimum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)		0.0092		0.0093
Mortgage servicing rights \| Measurement Input, Cap Rate \| Maximum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)		0.0098		0.0117
Mortgage servicing rights \| Dubuque Bank and Trust Company
Valuation servicing rights in tranches [Line Items]
Book value of servicing portfolio		$ 21,000,000
Number of serviced residential mortgage loans \| loan		20,300
Unpaid principal balance		$ 3,350,000,000
Fair value of mortgage servicing rights		37,100,000		$ 41,500,000
Mortgage servicing rights \| Dubuque Bank and Trust Company \| Subsequent Event
Valuation servicing rights in tranches [Line Items]
Unpaid principal balance	$ 37,000,000
Amount derecognized	$ 21,000,000
Commercial servicing rights
Valuation servicing rights in tranches [Line Items]
Book value of servicing portfolio		1,496,000		1,709,000
Fair value of mortgage servicing rights		1,926,000	$ 2,781,000	2,100,000
Loans guaranteed and sold with servicing retained		$ 95,000,000		$ 107,400,000
Commercial servicing rights \| Minimum
Valuation servicing rights in tranches [Line Items]
Average constant prepayment rate		11.37%		11.01%
Servicing assets, discount rate		12.71%		13.44%
Commercial servicing rights \| Maximum
Valuation servicing rights in tranches [Line Items]
Average constant prepayment rate		14.44%		13.50%
Servicing assets, discount rate		16.13%		16.96%
Commercial servicing rights \| Measurement Input, Cap Rate \| Minimum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)		0.0310		0.0310
Commercial servicing rights \| Measurement Input, Cap Rate \| Maximum
Valuation servicing rights in tranches [Line Items]
Average capitalization rate (percent)		0.0445		0.0445
Less Than 20 Years
Valuation servicing rights in tranches [Line Items]
Fair value of mortgage servicing rights		$ 452,000		$ 491,000
Fees collected for servicing of mortgage loans		$ 380,000	$ 420,000
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		$ 1,474,000		$ 1,643,000
Period of tranche		20 years
Valuation allowance		$ 0		$ 0
Amortization period		20 years		20 years