Details of Certain Financial Statement Components (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Inventory:
Raw materials, net of reserve	$ 28,279		$ 29,073
Work in process, net of reserve	2,461		2,497
Finished goods, net of reserve	23,016		14,774
Total inventory	53,756		46,344
Property and equipment:
Buildings, plant and equipment	49,259		39,408
Automobiles	398		347
Production tooling	8,393		6,050
Leasehold improvements	3,390		2,658
Computer equipment and software	11,293		8,849
Construction in progress	6,909		1,350
Total property, plant and equipment, gross	79,642		58,662
Less: Accumulated depreciation	(24,632)	[1]	(13,868)	[1]
Total property, plant and equipment, net	55,010		44,794
Other intangible assets:
Other intangible assets	124,445		117,943
Less: Accumulated amortization	(28,575)		(14,137)
Total Other intangible assets Net	95,870		103,806
Accrued liabilities:
Tax accruals	8,309		8,843
Accrued warranty	8,588		8,487		1,261
Accrued employee liabilities	11,183		7,991
Liabilities from discounts and rebates	3,977		7,392
Other accrued liabilities	22,100		13,580
Total accrued liabilities	54,157		46,293
Customer relationships
Other intangible assets:
Other intangible assets	77,499		75,980
Order Backlog [Member]
Other intangible assets:
Other intangible assets			2,819
Technology
Other intangible assets:
Other intangible assets	30,283		22,807
Product Development [Member]
Other intangible assets:
Other intangible assets	$ 16,663		$ 16,337

[1] Includes accumulated amortization of capital lease obligations.