XML 39 R42.htm IDEA: XBRL DOCUMENT v2.4.1.9
Significant Accounting Policies - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]  
Cash equivalents maturity period 3 months
Short-term investments maturity period 90 days
Estimated useful life of assets 10 years
Period of royalties notification, maximum 45 days
Period of royalties notification, minimum 30 days
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.
Warranty period, maximum 12 months
Warranty period, minimum 3 months
Cost capitalized $ 0us-gaap_CapitalizedComputerSoftwareNet