Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail)

v3.7.0.1
Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail)
$ in Thousands
3 Months Ended
Apr. 01, 2017
USD ($)
Goodwill [Roll Forward]  
Balance at beginning of period $ 115,207
Acquisition 0
Foreign Currency Translation 87
Balance at end of period 115,294
Operating Segments | Aerospace  
Goodwill [Roll Forward]  
Balance at beginning of period 115,207
Acquisition 0
Foreign Currency Translation 87
Balance at end of period 115,294
Operating Segments | Test Systems  
Goodwill [Roll Forward]  
Balance at beginning of period 0
Acquisition 0
Foreign Currency Translation 0
Balance at end of period $ 0