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Restrictions on Subsidiary Dividends, Loans, or Advances (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cost of shares repurchased		$ 1,053	$ 7,716	$ 2,486
Special dividend for general operating liquidity		32,600
Maximum amount available for transfer in the form of loans or advances		503,200	$ 479,500
Covid 19
Special dividend for general operating liquidity	$ 33,000
Announced stock repurchase program
Amount available for special dividend distribution without approval from SCBFI	24,700	200,000
Cost of shares repurchased	$ 24,700	146,400
Special dividend for general operating liquidity		135,200
Repayment of trust preferred and subordinated debt		$ 74,500

X

- Definition

Represents the maximum amount available in the form of loans or advances under regulatory requirements.

+ References

No definition available.

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- Definition

The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

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- Definition

Amount of dividends available for payment after computation of statutory restrictions on capital surplus.

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- Definition

Amount of dividends that can be declared or paid without approval of regulatory agency.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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-Name Accounting Standards Codification
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