Other Matters - Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disposal Group, Not Discontinued Operation, Disposal Disclosures [Abstract]
Loss on write-down to fair value less cost to sell	$ 1,600
Accounts receivable-trade, net	565
Prepaid expenses and other current assets	13
Property, plant and equipment, net	14,354
Goodwill	4,108
Intangible assets, net	49,179
Valuation allowance on assets held for sale	(1,622)
Total assets held for sale	66,597	$ 0
Accounts payable-trade	63
Accrued expenses and other payables	31
Advance payments received from customers	164
Other noncurrent liabilities	356
Total liabilities held for sale	$ 614	$ 0