XML 72 R54.htm IDEA: XBRL DOCUMENT v3.8.0.1
Acquisitions - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Oct. 02, 2017
Dec. 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Business Acquisition [Line Items]          
Intangible assets   $ 6,900 $ 6,900    
Goodwill   454,612 454,612 $ 443,529 $ 448,399
Acquisition related costs     344 0 11,682
Sales revenue     619,793 584,954 405,443
Net income     $ (163,052) (6,663) 6,486
NN Life Sciences Vandalia LLC [Member]          
Business Acquisition [Line Items]          
Date of acquisition     Oct. 02, 2017    
Cash payment to acquire business $ 38,700        
Acquisition percentage 100.00%        
Working capital post-closing adjustment $ 300        
Intangible assets 6,900 6,900 $ 6,900    
Goodwill $ 9,452 9,452 9,452    
Acquisition related costs   200 $ 300    
Sales revenue   6,700      
Net income   $ 500      
Precision Engineered Products Group [Member]          
Business Acquisition [Line Items]          
Date of acquisition     Oct. 19, 2015    
Cash payment to acquire business       621,196 621,196
Intangible assets       240,490 240,490
Goodwill       $ 370,904 $ 372,709