Fair Value - Fair Value of Financial Assets and Liabilities (Detail) - Investments [Member] - Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	$ 2,641	$ 2,802
Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	$ 2,641	$ 2,802

Fair Value - Fair Value of Financial Assets and Liabilities (Detail) - Investments [Member] - Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent - USD ($)
$ in Thousands

Sep. 30, 2026

Dec. 31, 2025

Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]

Assets, fair value

$ 2,641

$ 2,802

Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member]

Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]

Assets, fair value

$ 2,641

$ 2,802