Annual report pursuant to Section 13 and 15(d)

Investments and Fair Value Measurements - Additional Information (Detail)

v3.22.0.1
Investments and Fair Value Measurements - Additional Information (Detail) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Investments $ 1,588,000 $ 914,000  
Fair Value, Measurements, Recurring      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Financial assets   0 $ 0
Financial liabilities   $ 0 $ 0
Maximum      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Maximum financial interest in affiliated investment funds 2.00%