Segment Reporting - Summary of Financial Information for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Revenues	$ 152,489	$ 171,772	$ 494,240	$ 560,063
Cost of revenues	136,446	155,351	440,875	500,019
Gross profit	16,043	16,421	53,365	60,044
Selling, general & administrative expenses	17,104	17,481	52,222	55,531
Operating income (loss)	(1,061)	(1,060)	1,143	4,513
Other (income) expense	1,004	(1,033)	1,358	(615)
Interest expense	4,068	2,371	8,862	6,974
Loss on extinguishment of debt	0	0	460	0
Income (loss) before provision for income taxes	(6,133)	(2,398)	(9,537)	(1,846)
Building | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Gain on sale of building		3,500		3,500
Global Seating
Segment Reporting Information [Line Items]
Revenues	68,707	76,643	216,574	239,844
Global Electrical Systems
Segment Reporting Information [Line Items]
Revenues	49,491	46,714	153,527	159,079
Trim Systems and Components
Segment Reporting Information [Line Items]
Revenues	34,291	48,415	124,139	161,140
Operating Segments
Segment Reporting Information [Line Items]
Revenues	152,489	171,772	494,240	560,063
Cost of revenues	136,446	155,351	440,875	500,019
Gross profit	16,043	16,421	53,365	60,044
Selling, general & administrative expenses	14,727	13,989	45,435	46,286
Operating income (loss)	1,316	2,432	7,930	13,758
Operating Segments | Global Seating
Segment Reporting Information [Line Items]
Revenues	68,707	76,643	216,574	239,844
Cost of revenues	60,191	68,924	189,037	210,861
Gross profit	8,516	7,719	27,537	28,983
Selling, general & administrative expenses	7,108	9,259	21,092	25,628
Operating income (loss)	1,408	(1,540)	6,445	3,355
Operating Segments | Global Electrical Systems
Segment Reporting Information [Line Items]
Revenues	49,491	46,714	153,527	159,079
Cost of revenues	44,170	43,721	138,305	147,277
Gross profit	5,321	2,993	15,222	11,802
Selling, general & administrative expenses	4,483	4,468	14,260	13,373
Operating income (loss)	838	(1,475)	962	(1,571)
Operating Segments | Trim Systems and Components
Segment Reporting Information [Line Items]
Revenues	34,291	48,415	124,139	161,140
Cost of revenues	32,085	42,706	113,533	141,881
Gross profit	2,206	5,709	10,606	19,259
Selling, general & administrative expenses	3,136	262	10,083	7,285
Operating income (loss)	(930)	5,447	523	11,974
Corporate and Reconciling Items
Segment Reporting Information [Line Items]
Corporate and other unallocated costs	$ 2,377	$ 3,492	$ 6,787	$ 9,245