Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Goodwill - Summary of Changes in Carrying Amount of Goodwill (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
Goodwill [Roll Forward]  
Balance at beginning of period $ 125,645
Acquisition/Adjustments (141)
Foreign Currency Translation 126
Balance at end of period 125,630
Operating Segments | Aerospace  
Goodwill [Roll Forward]  
Balance at beginning of period 125,645
Acquisition/Adjustments (141)
Foreign Currency Translation 126
Balance at end of period 125,630
Operating Segments | Test Systems  
Goodwill [Roll Forward]  
Balance at beginning of period 0
Acquisition/Adjustments 0
Foreign Currency Translation 0
Balance at end of period $ 0