Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Capitalized Contract Cost [Line Items]
Revenues	$ 244,374	$ 245,122
Seats
Capitalized Contract Cost [Line Items]
Revenues	85,596	81,579
Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	44,992	53,546
Trim
Capitalized Contract Cost [Line Items]
Revenues	46,054	37,317
Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	32,331	41,120
Cab structures
Capitalized Contract Cost [Line Items]
Revenues	25,591	20,660
Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	9,810	10,900
Vehicle Solutions
Capitalized Contract Cost [Line Items]
Revenues	140,157	124,342
Vehicle Solutions | Seats
Capitalized Contract Cost [Line Items]
Revenues	69,808	67,502
Vehicle Solutions | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	0	695
Vehicle Solutions | Trim
Capitalized Contract Cost [Line Items]
Revenues	44,758	36,757
Vehicle Solutions | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0
Vehicle Solutions | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	25,591	17,913
Vehicle Solutions | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	0	1,475
Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	34,126	44,372
Warehouse Automation | Seats
Capitalized Contract Cost [Line Items]
Revenues	0	0
Warehouse Automation | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	1,795	3,252
Warehouse Automation | Trim
Capitalized Contract Cost [Line Items]
Revenues	0	0
Warehouse Automation | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	32,331	41,120
Warehouse Automation | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	0	0
Warehouse Automation | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	0	0
Electrical Systems
Capitalized Contract Cost [Line Items]
Revenues	39,876	46,462
Electrical Systems | Seats
Capitalized Contract Cost [Line Items]
Revenues	0	0
Electrical Systems | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	39,876	46,127
Electrical Systems | Trim
Capitalized Contract Cost [Line Items]
Revenues	0	0
Electrical Systems | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0
Electrical Systems | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	0	0
Electrical Systems | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	0	335
Aftermarket and Accessories
Capitalized Contract Cost [Line Items]
Revenues	30,215	29,946
Aftermarket and Accessories | Seats
Capitalized Contract Cost [Line Items]
Revenues	15,788	14,077
Aftermarket and Accessories | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	3,321	3,472
Aftermarket and Accessories | Trim
Capitalized Contract Cost [Line Items]
Revenues	1,296	560
Aftermarket and Accessories | Warehouse Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0
Aftermarket and Accessories | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	0	2,747
Aftermarket and Accessories | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	$ 9,810	$ 9,090