Segments - Schedule of Selected Financial Information for Each Reportable Segment and Reconciliation of EBITDAP to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Segment Reporting Information [Line Items]
Net sales to external customers	$ 287,495		$ 284,678		$ 568,511	$ 548,501
Intersegment sales (eliminated in consolidation)	0		0		0	0
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	56,714		45,783		96,834	84,704
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(7,487)		(7,314)		(14,854)	(14,679)
Interest expense and other, net	(21,869)		(29,833)		(40,853)	(61,935)
Corporate expenses	(14,071)		(11,915)		(28,822)	(28,365)
Share-based compensation expense	(3,350)	$ (3,015)	(3,724)	$ (3,622)	(6,365)	(7,346)
Gain (loss) on sale of assets and businesses			409			(12,208)
Amortization of acquired contract liabilities	622		590		1,213	1,165
Non-service defined benefit income (loss)	(1,468)		820		(2,501)	1,640
Legal contingencies loss			(1,338)		(7,464)	(1,338)
Debt modification and extinguishment gain (loss)			688		(5,369)	4,079
Warrant remeasurement gain, net			544			8,545
Income (Loss) from continuing operations before income taxes	9,091		(5,290)		(8,181)	(25,738)
Total capital expenditures	6,286		4,627		14,458	11,028
Total assets	1,511,465				1,511,465		$ 1,686,270
Systems & Support [Member]
Reconciliation of segment profit to income (loss) before income taxes
Amortization of acquired contract liabilities	622		590		1,213	1,165
Corporate & Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales to external customers	0		0		0	0
Intersegment sales (eliminated in consolidation)	(3)		(411)		(19)	(503)
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	0		0		0	0
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(578)		(445)		(990)	(940)
Total capital expenditures	558		105		656	1,937
Total assets	85,680				85,680
Operating Segments [Member] | Discontinued Operations [Member]
Reconciliation of segment profit to income (loss) before income taxes
Total capital expenditures			465			824
Operating Segments [Member] | Systems & Support [Member]
Segment Reporting Information [Line Items]
Net sales to external customers	249,954		249,385		501,934	476,638
Intersegment sales (eliminated in consolidation)	0		411		8	490
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	54,823		48,487		102,220	89,301
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(6,385)		(6,225)		(12,764)	(12,412)
Total capital expenditures	5,624		3,506		13,346	7,208
Total assets	1,309,907				1,309,907
Operating Segments [Member] | Interiors [Member]
Segment Reporting Information [Line Items]
Net sales to external customers	37,541		35,293		66,577	71,863
Intersegment sales (eliminated in consolidation)	3		0		11	13
Segment profit and reconciliation to consolidated income before income taxes:
Adjusted EBITDAP	1,891		(2,704)		(5,386)	(4,597)
Reconciliation of segment profit to income (loss) before income taxes
Depreciation and amortization	(524)		(644)		(1,100)	(1,327)
Total capital expenditures	104		$ 551		456	$ 1,059
Total assets	$ 115,878				$ 115,878