Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Additional Information (Detail)

v2.4.0.8
Fair Value - Additional Information (Detail) (USD $)
3 Months Ended 3 Months Ended
Mar. 29, 2014
Oct. 01, 2013
AeroSat [Member]
Mar. 29, 2014
Level 3 [Member]
Test Systems [Member]
Mar. 29, 2014
Level 3 [Member]
Max-Viz, Inc. [Member]
Mar. 29, 2014
Level 3 [Member]
Ballard [Member]
Mar. 29, 2014
Level 3 [Member]
AeroSat [Member]
Mar. 29, 2014
Maximum [Member]
Level 3 [Member]
Max-Viz, Inc. [Member]
Mar. 29, 2014
Maximum [Member]
Level 3 [Member]
Ballard [Member]
Mar. 29, 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   $ 5,000,000         $ 8,000,000 $ 5,500,000 $ 53,000,000
Unamortized trade names     400,000            
Term of amortization 13 years   10 years            
Total amortized intangible assets     3,900,000            
Change in fair value of goodwill and intangible assets     $ 0