Fair Value Measurements - Schedule of Assets Measured at Estimated Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Carrying Value Balance		$ 16,484
Other Investments, Amounts impaired		200	$ 0
Other Investments, Carrying Value Balance		7,067	16,484
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Carrying Value Balance		0	91,959
Other Investments, Amounts impaired			(91,959)
Other Investments, Carrying Value Balance			0
Nonrecurring [Member] | Goodwill [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments, Carrying Value Balance	[1]	$ 0	91,959
Other Investments, Amounts impaired	[1]		(91,959)
Other Investments, Carrying Value Balance	[1]		$ 0

[1] Non-cash impairment charge recorded in operating expenses in the consolidated statement of operations by the legal entity or related holding companies acquired. Goodwill that is impaired and subject to nonrecurring fair value measurements is a Level 3 valuation.