Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Mar. 07, 2023
Jun. 30, 2022
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-38545    
Entity Registrant Name LANDSEA HOMES CORPORATION    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 82-2196021    
Entity Address, Address Line One 660 Newport Center Drive    
Entity Address, Address Line Two Suite 300    
Entity Address, City or Town Newport Beach    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92660    
City Area Code 949    
Local Phone Number 345-8080    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 117.4
Entity Common Stock, Shares Outstanding   39,975,309  
Documents Incorporated by Reference Portions of the registrant’s definitive proxy statement with respect to its 2023 Annual Meeting of Stockholders to be filed not later than 120 days after the end of the registrant’s fiscal year are incorporated by reference into Part III of this Annual Report on Form 10-K.    
Entity CIK 0001721386    
Amendment Flag false    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Common Stock | NASDAQ      
Entity Information [Line Items]      
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol LSEA    
Security Exchange Name NASDAQ    
Warrant | NASDAQ      
Entity Information [Line Items]      
Title of 12(b) Security Warrants exercisable for Common Stock    
Trading Symbol LSEAW    
Security Exchange Name NASDAQ