Nominal or face amount used to calculate payments on the derivative liability.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Name:	us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

Derivatives (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Derivatives (Details) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Mar. 03, 2020	Jan. 02, 2020	Apr. 13, 2017
Notional Amount of Interest Rate Cash Flow Hedge Derivatives	$ 200.0		$ 200.0		$ 25.0	$ 25.0	$ 25.0
Interest expense on derivatives	$ 0.3	$ 0.6	$ 1.5	$ 0.9
Minimum [Member]
Federal Home Loan Bank advance Fixed-rates of interest	0.631%		0.88%
Expiration dates	Mar. 31, 2026		Jan. 31, 2022
Maximum [Member]
Federal Home Loan Bank advance Fixed-rates of interest	0.955%		1.93%
Expiration dates	Jan. 31, 2028		Apr. 30, 2022