Contract Liabilities (Details) - USD ($)	Sep. 30, 2024	Mar. 31, 2024
Short-term contract liabilities [Abstract]
Customer allowances earned	$ 25,537,000	$ 19,789,000
Customer core returns accruals	12,114,000	10,448,000
Accrued core payment	3,208,000	3,476,000
Customer deposits	2,536,000	1,735,000
Core bank liability	1,767,000	1,739,000
Finished goods liabilities	355,000	404,000
Total short-term contract liabilities	45,517,000	37,591,000
Long-term contract liabilities [Abstract]
Customer core returns accruals	203,572,000	193,545,000
Core bank liability	10,953,000	11,843,000
Accrued core payment	5,366,000	6,535,000
Finished goods liabilities	0	145,000
Total long-term contract liabilities	$ 219,891,000	$ 212,068,000