Financing Receivable, Number Of Loans Originated

No definition available.

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- Definition

Financing Receivables, Amount Funded Through CARES Act Paycheck Protection Program, Balance

+ References

No definition available.

+ Details

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- Definition

Financing Receivables, Modifications, Amount

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Represents the entity's number of financial centers as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Number Of Financial Centers Temporarily Closed

+ References

No definition available.

+ Details

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Namespace Prefix:	sfnc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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Recent Events - Textual (Details) $ in Millions	3 Months Ended		4 Months Ended	6 Months Ended
Recent Events - Textual (Details) $ in Millions	Jun. 30, 2020 loan financial_center	Jun. 30, 2019 loan	May 05, 2020 USD ($) loan	Jun. 30, 2020 loan financial_center	Jun. 30, 2019 loan	Mar. 31, 2020 financial_center
Subsequent Event [Line Items]
Number of financial centers \| financial_center	226			226
Number of financial centers temporarily closed \| financial_center						52
Number of Loans	1	0		1	0
COVID-19 Pandemic
Subsequent Event [Line Items]
Number of loans originated				7,800
Balance of loans funded through CARES Act PPP, \| $			$ 963.7
Extended Maturity and Payment Deferral \| COVID-19 Pandemic
Subsequent Event [Line Items]
Number of Loans			4,600
Loans modified, amount \| $			$ 3,300.0