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

Summary of Significant Accounting Policies (Details Narrative)

v3.20.4
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 02, 2019
Schedule of Capitalization, Equity [Line Items]          
Federal depository insurance coverage $ 250,000        
Common stock shares redemption 0 14,461,820      
Unrecognized tax benefits $ 0 $ 0      
Interest and penalties 0 0      
Landsea Homes [Member]          
Schedule of Capitalization, Equity [Line Items]          
Real estate inventories not owned 0 0      
Allowance for notes receivable 0 0      
Impairment of goodwill 0 0      
Depreciation expense 1,400,000 1,100,000 $ 500,000    
Deferred revenue 0 0      
Recognized deferred revenue   15,900,000      
Long-term incentive compensation 1,200,000 1,600,000 300,000    
Long term debt 2,200,000 1,900,000      
Right-of-use asset 6,000,000.0 6,300,000     $ 4,600,000
Operating lease liability 6,396,000 6,700,000     $ 4,600,000
Landsea Homes [Member] | Selling and Marketing Expense [Member]          
Schedule of Capitalization, Equity [Line Items]          
Depreciation expense 1,600,000 1,900,000 1,100,000    
Landsea Homes [Member] | Garrett Walker [Member]          
Schedule of Capitalization, Equity [Line Items]          
Goodwill acquired 15,400,000        
Landsea Homes [Member] | Pinnacle West [Member]          
Schedule of Capitalization, Equity [Line Items]          
Goodwill acquired   5,300,000      
LS Boston Point LLC [Member]          
Schedule of Capitalization, Equity [Line Items]          
Impairment of investment $ 225,000 $ 0 $ 0 $ 0  
Common Class A [Member]          
Schedule of Capitalization, Equity [Line Items]          
Antidilutive securities 23,285,000