Description of the Company and Summary of Significant Accounting Policies - Schedule of Company's Warranty Accrual (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Product Warranty Liability [Abstract]
Balance at beginning of year	$ 690	$ 803
Charged to expense	1,195	148
Payments	(611)	(261)
Balance at end of year	$ 1,274	$ 690