Goodwill and Acquired Intangible Assets - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Mortgage servicing rights retained from sale of SBA loans	$ 1.7	$ 1.7

Mortgage Servicing Rights, Small Business Administration Loans

No definition available.

Name:	sbcf_MortgageServicingRightsSmallBusinessAdministrationLoans
Namespace Prefix:	sbcf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant