v3.25.4

Lease Commitments - Supplemental Balance Sheet and Cash Flow Information Related to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Operating lease ROUAs	$ 57,925	$ 40,935
Other assets [Extensible Enumeration]	Other assets	Other assets
Operating lease liabilities	$ 62,322	$ 44,717
Other liabilities [Extensible Enumeration]	Other liabilities	Other liabilities
Cash paid during the year for amounts included in the measurement of operating lease liabilities	$ 11,764	$ 10,600
ROUAs recorded during the year in exchange for new or renewed operating lease obligations	16,540	2,815
ROUAs obtained during the year through bank acquisition	$ 9,906	$ 0
Weighted-average remaining lease term for operating leases	7 years 3 months 18 days	6 years 4 months 24 days
Weighted-average discount rate for operating leases	5.17%	5.10%

Right-Of-Use Asset Acquired in Acquisition

+ References

No definition available.

+ Details

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Namespace Prefix:	sbcf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Indicates line item in statement of financial position that includes operating lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-2

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Subparagraph (c)
-Publisher FASB
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Balance Type:	credit
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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

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-SubTopic 20
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-Section 45
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Indicates line item in statement of financial position that includes operating lease right-of-use asset.

+ References

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
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- Definition

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

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SEACOAST BANKING CORP OF FLORIDA 10-K