Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities - Summary of Company's Investment Securities (Detail)

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Marketable Securities - Summary of Company's Investment Securities (Detail) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Marketable Securities [Line Items]    
Cost $ 11,177 $ 8,032
Unrealized Gains 0 34
Unrealized Losses (400) (31)
Fair Value 10,777 8,035
Exchange traded funds    
Marketable Securities [Line Items]    
Cost 1,610 1,159
Unrealized Gains 0 16
Unrealized Losses (28) (4)
Fair Value 1,582 1,171
Mutual funds    
Marketable Securities [Line Items]    
Cost 9,567 6,873
Unrealized Gains 0 18
Unrealized Losses (372) (27)
Fair Value $ 9,195 $ 6,864