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Segment Reporting - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017	Nov. 01, 2017	Sep. 30, 2017
Segment Reporting Information [Line Items]
Goodwill	$ 55,705	$ 69,685
Assets held for sale	56,184
Automotive Segments
Segment Reporting Information [Line Items]
Goodwill	37,927			$ 23,514
Industrial Segments
Segment Reporting Information [Line Items]
Goodwill	30,773			$ 30,773
Assets held for sale	$ 12,995
Etratech Inc.
Segment Reporting Information [Line Items]
Date of acquisition	Nov. 01, 2017
Goodwill			$ 14,881