Income Taxes - Reconciliation of Federal Statutory Income Tax Rate to Effective Tax Rate (Detail)		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	[1]	23.50%	19.00%	19.00%
Tax effect of international operations	[2]	(13.20%)	(7.60%)	(5.10%)
Change in valuation allowances		2.20%	1.00%	(0.20%)
Excess tax benefits on stock-based compensation		(0.10%)	(0.20%)	(1.10%)
Unrecognized tax benefits		0.00%	0.00%	(1.30%)
Effective Income Tax Rate Reconciliation, Worthless Stock Deduction, Percentage		(5.00%)	0.00%	0.00%
Change in tax basis in foreign assets	[3]	(8.00%)	0.00%	0.00%
Effective tax rate		(0.60%)	12.20%	11.30%

[1] The U.K. Finance Act of 2021 increased the statutory tax rate from 19.0% to 25.0%, effective April 1, 2023. Given this change, a prorated U.K. federal statutory income tax rate was utilized for 2023.

[2] The tax effect of international operations consists of non-U.K. jurisdictions.

[3] The 2023 impact primarily represents the initial recognition of tax basis in intangible assets in foreign jurisdictions and the related valuation allowance.