Transactions with Affiliates - Related Party Transactions (Details) - Related Party - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2025
Transactions with Affiliates
Accounts receivable-affiliates	$ 237		$ 237		$ 730
Accounts payable-affiliates	1		1		102
Entities affiliated with management
Transactions with Affiliates
Sales to entities affiliated with management	251	$ 74	415	$ 74
Accounts receivable-affiliates	237		237		135
Accounts payable-affiliates	1		1		1
Equity method investees
Transactions with Affiliates
Purchases from related party	0	$ 122	0	$ 141
Accounts receivable-affiliates	0		0		595
Accounts payable-affiliates	$ 0		$ 0		$ 101