Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
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	$ 504,423	$ 505,157	$ 551,652	$ 397,731
Finite lived intangible asset useful life, Minimum	2 years
Finite lived intangible asset useful life, Maximum	12 years
Product liability expenses, minimum	$ 0
Product liability expenses, maximum	33,000	33,000
Advertising expense	53,715	53,007	57,439
Warranty accrual	10,634	12,339	14,005	30,853
Additions to product warranty accrual reserve	8,349	9,122	17,413
Product warranty accrual payments	10,054	10,788	19,112
Research and development expense	55,534	51,793	56,848
Interest paid to related party			15
Payment made by company's joint venture to related party for purchases			32,918
Payment made by company's joint venture to related party for services	33,774	26,598	27,573
Sale to noncontrolling shareholder	$ 6,335	$ 6,555	6,159
CCT Agreement
Summary Of Significant Policies [Line Items]
Warranty accrual			0	$ 16,807
Additions to product warranty accrual reserve			6,813
Product warranty accrual payments			$ 8,471
Minimum
Summary Of Significant Policies [Line Items]
Equity investments ownership percentage	20.00%
Maximum
Summary Of Significant Policies [Line Items]
Equity investments ownership percentage	50.00%
Software | Minimum
Summary Of Significant Policies [Line Items]
Intangible asset useful life	3 years
Software | Maximum
Summary Of Significant Policies [Line Items]
Intangible asset useful life	12 years
Land use rights | Minimum
Summary Of Significant Policies [Line Items]
Intangible asset useful life	39 years
Land use rights | Maximum
Summary Of Significant Policies [Line Items]
Intangible asset useful life	46 years