Post-effective amendment to a registration statement that is not immediately effective upon filing

Cover

v3.20.4
Cover
12 Months Ended
Dec. 31, 2020
Cover [Abstract]  
Document Type POS AM
Amendment Flag false
Entity Registrant Name Landsea Homes Corporation
Entity Central Index Key 0001721386
Entity Tax Identification Number 82-2196021
Entity Incorporation, State or Country Code DE
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 Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Document Creation Date Mar. 12, 2021