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Property and Equipment - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Nov. 08, 2021
Nov. 30, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property Plant And Equipment [Line Items]          
Depreciation Expense     $ 3.3 $ 2.0 $ 1.8
Casper L L C          
Property Plant And Equipment [Line Items]          
Sale price $ 102.3 $ 102.3      
Sale leaseback transaction, lease agreement period. 20 years        
Sale leaseback transaction, date November 8, 2021        
Manufacturing Equipment, Computer Hardware and Software, Computer Equipment, Lab Equipment, and Building Improvements          
Property Plant And Equipment [Line Items]          
Amount of divestiture of long-lived     $ 2.4 $ 1.1