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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]      
Payments for (Proceeds from) Derivative Instrument, Investing Activities     $ 4,900
Cash and cash equivalents $ 157,125 $ 60,023  
Deferred tax assets recorded 90,394 72,242  
Valuation allowance [1] $ 9,413 $ 7,012  
Weighted average number of Trust shares outstanding 65,362,000 63,151,000 59,900,000
Advertising costs $ 26,200 $ 18,000 $ 17,300
Research and development expense 11,900 3,000 800
Total employer contributions to plans 3,500 2,500 2,100
Share-based Payment Arrangement, Expense 10,900 8,500 $ 5,800
Stock compensation expense in future years for unvested options $ 28,500    
Business Acquisitions      
Class of Stock [Line Items]      
Share of the voting interest percentage 50.00%    
Foreign | Subsidiaries      
Class of Stock [Line Items]      
Cash and cash equivalents $ 33,900 $ 28,100  
[1] Primarily relates to the 5.11, Arnold and Ergo operating segments.