Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Capitalized Contract Cost [Line Items]
Revenues	$ 971,578	$ 717,699	$ 901,238
Seats
Capitalized Contract Cost [Line Items]
Revenues	322,957	264,211	362,768
Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	207,333	187,965	198,196
Trim
Capitalized Contract Cost [Line Items]
Revenues	156,760	111,863	196,087
Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	162,583	63,559	1,151
Cab structures
Capitalized Contract Cost [Line Items]
Revenues	77,510	49,781	87,872
Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	44,435	40,320	55,164
Vehicle Solutions
Capitalized Contract Cost [Line Items]
Revenues	498,913	366,636	577,989
Vehicle Solutions | Seats
Capitalized Contract Cost [Line Items]
Revenues	267,580	205,232	291,496
Vehicle Solutions | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	2,682	1,751	2,404
Vehicle Solutions | Trim
Capitalized Contract Cost [Line Items]
Revenues	154,205	109,450	193,918
Vehicle Solutions | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Vehicle Solutions | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	69,749	46,483	85,885
Vehicle Solutions | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	4,697	3,720	4,286
Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	187,912	101,655	12,803
Warehouse Automation | Seats
Capitalized Contract Cost [Line Items]
Revenues	0	147	0
Warehouse Automation | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	25,329	37,949	11,652
Warehouse Automation | Trim
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Warehouse Automation | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	162,583	63,559	1,151
Warehouse Automation | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Warehouse Automation | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Electrical Systems
Capitalized Contract Cost [Line Items]
Revenues	168,971	141,094	178,398
Electrical Systems | Seats
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Electrical Systems | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	168,108	138,903	172,341
Electrical Systems | Trim
Capitalized Contract Cost [Line Items]
Revenues	0	0	342
Electrical Systems | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Electrical Systems | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Electrical Systems | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	863	2,191	5,715
Aftermarket and Accessories
Capitalized Contract Cost [Line Items]
Revenues	115,782	108,314	132,048
Aftermarket and Accessories | Seats
Capitalized Contract Cost [Line Items]
Revenues	55,377	58,832	71,272
Aftermarket and Accessories | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	11,214	9,362	11,799
Aftermarket and Accessories | Trim
Capitalized Contract Cost [Line Items]
Revenues	2,555	2,413	1,827
Aftermarket and Accessories | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Aftermarket and Accessories | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	7,761	3,298	1,987
Aftermarket and Accessories | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	$ 38,875	$ 34,409	$ 45,163