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Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill [Roll Forward]      
Goodwill, balance at the beginning of the period $ 83,243 $ 84,761 $ 74,825
Translation adjustment 20 (2,376) 2,195
Goodwill acquired 114,759 858 7,741
Goodwill, balance at the end of the period 198,022 83,243 84,761
Industrial      
Goodwill [Roll Forward]      
Goodwill, balance at the beginning of the period 68,672 69,504 63,152
Translation adjustment (124) (916) 1,506
Goodwill acquired 114,759 84 4,846
Goodwill, balance at the end of the period 183,307 68,672 69,504
Agricultural      
Goodwill [Roll Forward]      
Goodwill, balance at the beginning of the period 14,571 15,257 11,673
Translation adjustment 144 (1,460) 689
Goodwill acquired 0 774 2,895
Goodwill, balance at the end of the period $ 14,715 $ 14,571 $ 15,257