Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Additional Information (Detail)

v2.4.0.8
Fair Value - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Oct. 01, 2013
AeroSat [Member]
Jun. 28, 2014
Level 3 [Member]
Max-Viz, Inc. [Member]
Jun. 28, 2014
Level 3 [Member]
Ballard [Member]
Jun. 28, 2014
Level 3 [Member]
AeroSat [Member]
Jun. 28, 2014
Maximum [Member]
Level 3 [Member]
Max-Viz, Inc. [Member]
Jun. 28, 2014
Maximum [Member]
Level 3 [Member]
Ballard [Member]
Jun. 28, 2014
Maximum [Member]
Level 3 [Member]
AeroSat [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]              
Revenue growth target period   2 years 3 years 2 years      
Contingent consideration on fair value liabilities $ 5,000       $ 8,000 $ 5,500 $ 53,000