Goodwill - Summary of Changes in the Carrying Amount of Goodwill, By Operating Segment (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Goodwill [Line Items]
Balance, beginning of period	$ 55,311
Balance, end of period	63,501
Operating Segments
Goodwill [Line Items]
Balance, beginning of period	55,311
Stihler acquisition	9,816
Currency impact	(1,626)
Balance, end of period	63,501
Automotive Segments | Operating Segments
Goodwill [Line Items]
Balance, beginning of period	37,533
Currency impact	(1,388)
Balance, end of period	36,145
Industrial Segments | Operating Segments
Goodwill [Line Items]
Balance, beginning of period	17,778
Stihler acquisition	9,816
Currency impact	(238)
Balance, end of period	$ 27,356