Equity Capital	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Equity Capital	Equity CapitalThe Company is well capitalized and at March 31, 2021, the Company and the Company’s principal banking subsidiary, Seacoast Bank, exceeded the common equity Tier 1 (CET1) capital ratio regulatory threshold of 6.5% for well-capitalized institutions under the Basel III standardized transition approach, as well as risk-based and leverage ratio requirements for well capitalized banks under the regulatory framework for prompt corrective action.