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Discontinued Operations - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 17, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from sale of business   $ 838 $ 371,436 $ 0
Precision Bearing Components Group        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain on cumulative foreign currency translation $ 9,300      
Discontinued Operations, Disposed of by Sale | PBC Business | Precision Bearing Components Group        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from sale of business 387,600      
Receivables $ 800      
Estimated after-tax gain on sale     $ 127,700