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Fair Value Measurements - Summary of Company's Fair Value Hierarchy for its Financial Assets and Liabilities (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Assets:    
Fair value of investments $ 88,733 $ 81,465
Money market funds [Member]    
Assets:    
Fair value of cash equivalents 68,690 [1] 64,743 [2]
Marketable Investments [Member]    
Assets:    
Fair value of investments [3] 20,043 16,722
Level 1 [Member]    
Assets:    
Fair value of investments 68,690 64,743
Level 1 [Member] | Money market funds [Member]    
Assets:    
Fair value of cash equivalents 68,690 [1] 64,743 [2]
Level 1 [Member] | Marketable Investments [Member]    
Assets:    
Fair value of investments [3] 0 0
Level 2 [Member]    
Assets:    
Fair value of investments 20,043 16,722
Level 2 [Member] | Money market funds [Member]    
Assets:    
Fair value of cash equivalents 0 [1] 0 [2]
Level 2 [Member] | Marketable Investments [Member]    
Assets:    
Fair value of investments [3] $ 20,043 $ 16,722
[1] U.S. based funds of $17.2 million are included in cash and cash equivalents and non-U.S. based funds of $51.5 million are included in marketable investments in the Consolidated Balance Sheets.
[2] U.S. based funds of $17.1 million are included in cash and cash equivalents and non-U.S. based funds of $47.6 million are included in marketable investments in the Consolidated Balance Sheets.
[3] Marketable investments have been initially valued at the transaction price and subsequently valued, at the end of the reporting period, utilizing third party pricing services or other market observable data. The pricing services utilize industry standard valuation methods, including both income and market-based approaches and observable market inputs to determine value. These observable market inputs include reportable trades, benchmark yields, credit spreads, broker/dealer quotes, bids, offers, current spot rates and other industry and economic events.