Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitments and Contingencies Disclosure [Line Items]
Rent expense under company's operating leases	$ 5,996	$ 3,243	$ 1,300
Rights and ownership purchase of intellectual property		37	17
Patents [Member]
Commitments and Contingencies Disclosure [Line Items]
Rights and ownership purchase of intellectual property	$ 7,000
Number of Quarterly Installment Payments	9
Farmington Hills, Michigan [Member]
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Dec. 31, 2019
Azusa, California [Member]
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Jul. 31, 2017
Extended lease period	36 months
Irwindale, California [Member]
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Sep. 30, 2013
North America and Windsor, Canada
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Feb. 14, 2020
Del Rio, Texas
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Jun. 15, 2015
Acuna, Mexico | Location 1
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Jun. 30, 2015
Acuna, Mexico | Location 2
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Dec. 30, 2022
Ulsan, South Korea
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Oct. 31, 2013
Shanghai, China
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Oct. 31, 2015
Shen Zhen, China
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Jul. 19, 2017
Ta'Xbiex, Malta
Commitments and Contingencies Disclosure [Line Items]
Lease agreement expiry date	Mar. 31, 2013