Inventories (Notes)

12 Months Ended

Mar. 31, 2012

INVENTORIES

The components of inventories consist of the following (amounts in thousands):



	March 31, 2012		March 31, 2011
Raw materials	$	8,065	$	8,174
Work in process	139,045		141,462
Finished goods	70,168		31,164
	$	217,278	$	180,800

Inventories are valued at the lower of cost or market using the first-in, first-out method. Inventory impairment charges establish a new cost basis for inventory and charges are not subsequently reversed to income even if circumstances later suggest that increased carrying amounts are recoverable.

- Definition

The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

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