Segment Reporting (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenues	$ 126,896	$ 243,190	$ 314,001	$ 486,354
Gross Profit	6,475	32,436	26,778	65,525
Selling, General & Administrative Expenses	15,984	16,248	33,083	31,447
Amortization Expense	856	322	1,716	643
Impairment Expense	150	0	29,017	0
Operating Loss	(10,515)	15,866	(37,038)	33,435
Capital and Other Expenditures [Abstract]
Capital Expenditures	994	7,416	3,901	12,718
Depreciation Expense	3,729	2,982	7,509	6,341
Other Items	6,405		6,576
Operating Segments
Segment Reporting Information [Line Items]
Revenues	126,896	243,190	314,001	486,354
Corporate/ Other
Segment Reporting Information [Line Items]
Revenues	(1,176)	(4,033)	(2,149)	(8,541)
Gross Profit	(14)	(11)	(26)	(34)
Selling, General & Administrative Expenses	5,721	7,395	14,077	13,108
Amortization Expense	0	0	0	0
Impairment Expense	150		793
Operating Loss	(5,885)	(7,406)	(14,896)	(13,142)
Capital and Other Expenditures [Abstract]
Capital Expenditures	64	773	366	1,613
Depreciation Expense	499	600	1,127	1,196
Other Items	412		452
Electrical Systems
Segment Reporting Information [Line Items]
Revenues	74,210	141,947	186,308	285,558
Electrical Systems | Operating Segments
Segment Reporting Information [Line Items]
Revenues	73,498	139,089	184,665	279,761
Gross Profit	1,144	17,761	12,090	37,093
Selling, General & Administrative Expenses	6,580	3,676	10,531	7,825
Amortization Expense	729	186	1,458	373
Impairment Expense	0		23,415
Operating Loss	(6,165)	13,899	(23,314)	28,895
Capital and Other Expenditures [Abstract]
Capital Expenditures	642	5,837	2,518	9,322
Depreciation Expense	2,176	1,317	4,258	2,999
Other Items	5,447		5,447
Electrical Systems | Intersegment Revenues
Segment Reporting Information [Line Items]
Revenues	(712)	(2,858)	(1,643)	(5,797)
Global Seating
Segment Reporting Information [Line Items]
Revenues	53,862	105,276	129,842	209,337
Global Seating | Operating Segments
Segment Reporting Information [Line Items]
Revenues	53,398	104,101	129,336	206,593
Gross Profit	5,345	14,686	14,714	28,466
Selling, General & Administrative Expenses	3,683	5,177	8,475	10,514
Amortization Expense	127	136	258	270
Impairment Expense	0		4,809
Operating Loss	1,535	9,373	1,172	17,682
Capital and Other Expenditures [Abstract]
Capital Expenditures	288	806	1,017	1,783
Depreciation Expense	1,054	1,065	2,124	2,146
Other Items	546		677
Global Seating | Intersegment Revenues
Segment Reporting Information [Line Items]
Revenues	$ (464)	$ (1,175)	$ (506)	$ (2,744)