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Divestitures - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Nov. 27, 2018
Mar. 30, 2018
Feb. 28, 2018
Dec. 31, 2018
Dec. 31, 2017
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]          
Gain (loss) on disposal       $ (4,390)  
Strobic Air Corporation [Member]          
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]          
Sale price, subject to post-closing purchase price adjustments   $ 28,500      
Gain (loss) on disposal   6,900      
Net proceeds after adjustments   27,900      
Net assets disposed   18,800      
Transaction-related cost   2,200      
Goodwill   13,000      
Net sales         $ 17,700
Income from operations         $ 1,600
Strobic Air Corporation [Member] | Definite-Lived Intangible Assets [Member]          
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]          
Intangible assets   2,300      
Strobic Air Corporation [Member] | Indefinite-Lived Intangible Assets [Member]          
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]          
Intangible assets   $ 1,200      
Keystone Filter [Member]          
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]          
Sale price, subject to post-closing purchase price adjustments     $ 7,500    
Gain (loss) on disposal     4,300    
Net proceeds after adjustments     7,200    
Net assets disposed     2,700    
Transaction-related cost     $ 200    
Zhongli [Member]          
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]          
Gain (loss) on disposal $ (15,100)        
Disposal group, consideration receivable $ 3,600