Number of Statutory Business Trusts

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- Definition

Trust preferred securities limited to tier one capital elements, net of goodwill.

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
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Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
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-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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- Definition

The cash outflow associated with the purchase of all investments (debt, security, other) during the period.

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-Name Accounting Standards Codification
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The cash inflow from the additional capital contribution to the entity.

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-Topic 230
-SubTopic 10
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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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Borrowed Funds (Subordinated Debentures Owed to Unconsolidated Subsidiary Trusts) (Narrative) (Details)	1 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2005 USD ($)	Mar. 31, 2004 USD ($)	Oct. 31, 2002 USD ($)	Sep. 30, 2020	Dec. 31, 2020 USD ($) trust	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Number of Statutory Business Trusts \| trust					3
Subordinated debentures owed to unconsolidated subsidiary trusts					$ 19,589,000	$ 19,589,000
Ownership percentage					100.00%
Proceeds from issuance of common stock, net of issuance costs					$ 178,000	$ 159,000	$ 237,000
Basis spread on variable rate				487.00%
Trust preferred securities limited to tier one capital elements, Nnt of goodwill					25.00%
Sfg Capital Trust I [Member]
Debt Instrument [Line Items]
Proceeds from issuance or sale of equity			$ 3,500,000
Proceeds from issuance of common stock, net of issuance costs			109,000
Payments to acquire investments			$ 3,610,000
Basis spread on variable rate			345.00%
Sfg Capital Trust Ii [Member]
Debt Instrument [Line Items]
Proceeds from issuance or sale of equity		$ 7,500,000
Proceeds from issuance of common stock, net of issuance costs		232,000
Payments to acquire investments		$ 7,730,000
Basis spread on variable rate		280.00%
Sfg Capital Trust Iii [Member]
Debt Instrument [Line Items]
Proceeds from issuance or sale of equity	$ 8,000,000.0
Proceeds from issuance of common stock, net of issuance costs	248,000
Payments to acquire investments	$ 8,250,000
Basis spread on variable rate	145.00%