Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Capitalized Contract Cost [Line Items]
Revenues	$ 994,679	$ 981,553	$ 971,578
Seats
Capitalized Contract Cost [Line Items]
Revenues	345,705	362,215	322,957
Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	271,634	205,181	207,333
Plastic & Trim components
Capitalized Contract Cost [Line Items]
Revenues	194,420	185,462	156,760
Industrial Automation
Capitalized Contract Cost [Line Items]
Revenues	12,642	73,340	162,583
Cab structures
Capitalized Contract Cost [Line Items]
Revenues	120,310	110,624	77,510
Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	49,968	44,731	44,435
Vehicle Solutions
Capitalized Contract Cost [Line Items]
Revenues	587,119	579,731	498,913
Vehicle Solutions | Seats
Capitalized Contract Cost [Line Items]
Revenues	274,591	286,391	267,580
Vehicle Solutions | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	2,985	89	2,682
Vehicle Solutions | Plastic & Trim components
Capitalized Contract Cost [Line Items]
Revenues	186,816	179,910	154,205
Vehicle Solutions | Industrial Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Vehicle Solutions | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	117,157	109,268	69,749
Vehicle Solutions | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	5,570	4,073	4,697
Electrical Systems
Capitalized Contract Cost [Line Items]
Revenues	228,424	180,404	168,971
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	228,424	179,849	168,108
Electrical Systems | Plastic & Trim components
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Electrical Systems | Industrial Automation
Capitalized Contract Cost [Line Items]
Revenues	0	520	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	0	35	863
Aftermarket & Accessories
Capitalized Contract Cost [Line Items]
Revenues	140,236	133,671	115,782
Aftermarket & Accessories | Seats
Capitalized Contract Cost [Line Items]
Revenues	71,114	75,824	55,377
Aftermarket & Accessories | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	13,967	10,316	11,214
Aftermarket & Accessories | Plastic & Trim components
Capitalized Contract Cost [Line Items]
Revenues	7,604	5,552	2,555
Aftermarket & Accessories | Industrial Automation
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Aftermarket & Accessories | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	3,153	1,356	7,761
Aftermarket & Accessories | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	44,398	40,623	38,875
Industrial Automation
Capitalized Contract Cost [Line Items]
Revenues	38,900	87,747	187,912
Industrial Automation | Seats
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Industrial Automation | Electrical wire harnesses, panels and assemblies
Capitalized Contract Cost [Line Items]
Revenues	26,258	14,927	25,329
Industrial Automation | Plastic & Trim components
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Industrial Automation | Industrial Automation
Capitalized Contract Cost [Line Items]
Revenues	12,642	72,820	162,583
Industrial Automation | Cab structures
Capitalized Contract Cost [Line Items]
Revenues	0	0	0
Industrial Automation | Mirrors, wipers and controls
Capitalized Contract Cost [Line Items]
Revenues	$ 0	$ 0	$ 0