Cash and Cash Equivalents - Schedule of Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Summary of Investment Holdings [Line Items]
Cost	$ 24,170	$ 18,615
Fair Market Value	24,170	18,615
Cash [Member]
Summary of Investment Holdings [Line Items]
Cost	24,125	18,571
Fair Market Value	24,125	18,571
Money Market Funds [Member]
Summary of Investment Holdings [Line Items]
Cost	45	44
Fair Market Value	$ 45	$ 44