Significant Accounting Policies - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014 Segment
Significant Accounting Policies [Line Items]
Number of operating and reporting segments	1
Estimated useful life of assets	10 years
Products warranty grants description	The Company typically grants to customers a warranty that guarantees the 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
Warranty period	12 months
Minimum [Member]
Significant Accounting Policies [Line Items]
Period of royalties notification	30 days
Warranty period	3 months