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Warranties - Changes in Product Warranty Reserve (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance at beginning of year $ 138,992 $ 92,064
Warranty expense 15,961 17,853
Acquisitions 397 7,547
Warranty claim payments (16,479) (20,422)
Foreign currency impact/other 5,887 (696)
Balance at end of period $ 144,758 $ 96,346