Quarterly report pursuant to Section 13 or 15(d)

Investments and Fair Value Measurements - Category of Financial Instruments Not Held at Fair Value (Detail)

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Investments and Fair Value Measurements - Category of Financial Instruments Not Held at Fair Value (Detail) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Carrying Amount    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Assets, Investments $ 146 $ 146
Carrying Amount | Level I    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Assets, Cash and cash equivalents 58,867 77,432
Carrying Amount | Level II    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Liabilities, Borrowings under credit facility 3,600 6,300
Fair Value    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Assets, Investments 146 146
Fair Value | Level I    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Assets, Cash and cash equivalents 58,867 77,432
Fair Value | Level II    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Liabilities, Borrowings under credit facility $ 3,600 $ 6,300