Inventories

3 Months Ended

Jun. 30, 2025

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consisted of the following (in thousands):

	June 30, 2025		March 31, 2025
At cost - FIFO basis:
Raw materials	$	176,551	$	163,053
Work-in-process	33,786		30,349
Finished goods	39,283		37,197
Total at cost FIFO basis	249,620		230,599
LIFO cost less than FIFO cost	(33,417)		(32,001)
Net inventories	$	216,203	$	198,598

An actual valuation of inventory under the LIFO method can be made only at the end of each year based on the inventory levels and costs at that time. Accordingly, interim LIFO calculations must necessarily be based on management's estimates of expected year-end inventory levels and costs. Because these are subject to many factors beyond management's control, estimated interim results are subject to change in the final year-end LIFO inventory valuation.