Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands					12 Months Ended
	Jan. 25, 2020	May 10, 2019	Feb. 15, 2019	Sep. 24, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 22, 2017
Summary Of Significant Policies [Line Items]
Minimum percentage of investment consolidated					50.00%
Maximum percentage of cost method investments					20.00%
Cash and cash equivalents					$ 625,758	$ 391,332	$ 356,254
Accounts receivable, less allowances					506,305	544,257
Allowances for accounts receivable					11,162	8,109
Unremitted foreign earnings					738,000			$ 495,000
Product liability expenses, minimum					0
Product liability expenses, maximum					33,000
Advertising expense					53,662	58,453	54,177
Research and development expense					64,140	69,928	64,007
Expenses from transactions with related party					5,800	26,589	28,023
Revenue from related parties					2,784	4,373	4,713
Purchases from related party					2,784	10,920	$ 775
Investment in joint venture					$ 53,494	48,912
COOCSA professional and other costs
Summary Of Significant Policies [Line Items]
Payment of severance costs						$ 683
Member Of Joint Venture | COOCSA professional and other costs
Summary Of Significant Policies [Line Items]
Payment of severance costs	$ 15,984
Computer Software, Intangible Asset | Minimum
Summary Of Significant Policies [Line Items]
Intangible asset, useful life					1 year
Computer Software, Intangible Asset | Maximum
Summary Of Significant Policies [Line Items]
Intangible asset, useful life					10 years
Land use rights | Minimum
Summary Of Significant Policies [Line Items]
Intangible asset, useful life					35 years
Land use rights | Maximum
Summary Of Significant Policies [Line Items]
Intangible asset, useful life					42 years
Unfavorable Regulatory Action
Summary Of Significant Policies [Line Items]
Loss contingency imposed			42.16%
Section 301 Tariffs
Summary Of Significant Policies [Line Items]
Loss contingency imposed		25.00%		10.00%