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Income Taxes - Reconciliation of Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	21.00%	21.00%	21.00%
U.S. taxation of foreign profits, net of foreign tax credits	0.00%	0.00%	(5.60%)
Research and employment tax credits	(3.60%)	(2.20%)	(1.10%)
State and local taxes	3.00%	1.50%	(1.20%)
Foreign tax rate differences	24.90%	8.40%	10.10%
Statutory changes in tax rates	(1.10%)	(1.10%)	0.20%
Valuation allowance	(1.50%)	8.10%	(5.10%)
Changes in uncertain tax positions	1.80%	(3.40%)	(9.40%)
Goodwill impairment	33.80%	48.40%	0.00%
Nondeductible expenses	2.30%	2.30%	4.10%
GILTI and FDII	0.20%	4.00%	(0.40%)
Other items, net	0.80%	(0.80%)	0.80%
Effective income tax rate	81.60%	86.20%	13.40%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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