XML 73 R64.htm IDEA: XBRL DOCUMENT v3.22.1

Leases (Narrative Disclosures) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Leases [Abstract]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 1,600
Tenant Improvement Allowance Recognized as a Lease Incentive	$ 991

X

- Definition

Tenant Improvement Allowance Recognized as a Lease Incentive

+ References

No definition available.

+ Details

Name:	fbiz_TenantImprovementAllowanceRecognizedAsALeaseIncentive
Namespace Prefix:	fbiz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_LeasesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(2)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

+ Details

Name:	us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration