Significant Accounting Policies - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2013
Significant Accounting Policies [Line Items]
Product warranty grants description	Company typically grants to customers a warranty which guarantees that products will substantially conform to the Company’s current specifications for generally three to twelve months from the delivery date pursuant to the terms of the arrangement.
Maximum [Member]
Significant Accounting Policies [Line Items]
Period of royalties notification	45 days
Product warranty period	12
Minimum [Member]
Significant Accounting Policies [Line Items]
Period of royalties notification	30 days
Product warranty period	3