Quarterly report pursuant to Section 13 or 15(d)

Investments - Additional Information (Detail)

v2.4.1.9
Investments - Additional Information (Detail) (USD $)
3 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Investments Schedule [Abstract]    
Sale of available-for-sale securities $ 0us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities $ 0us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities