Goodwill and Purchased Intangible Assets - Details of Purchased Intangible Assets (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 28, 2014
UCT Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Value of UCT tradename	$ 9.0
American Integration Technologies LLC [Member] \| Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Value of AIT tradename	$ 1.9

Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

No definition available.

Name:	us-gaap_IndefinitelivedIntangibleAssetsAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration