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Warranties - Changes in Product Warranty Reserve (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance at beginning of year $ 153,063 $ 138,992
Warranty expense 11,677 5,760
Acquisitions 1,975 62
Warranty claim payments (11,282) (8,224)
Foreign currency impact/other 2,138 1,076
Balance at end of period $ 157,571 $ 137,666