Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Feb. 28, 2013	May 31, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 31,664	$ 88,027
Receivables – net	98,458	98,836
Inventories	100,282	99,441
Deferred income taxes and prepaid expenses	20,282	19,007
Discontinued operations held for sale	38,769	40,344
TOTAL CURRENT ASSETS	289,455	345,655
PROPERTY, PLANT AND EQUIPMENT
Land and land improvements	170,078	168,173
Buildings	49,637	49,567
Machinery and equipment	1,156,061	1,142,439
Construction in progress	483,641	436,552
TOTAL PROPERTY, PLANT AND EQUIPMENT (Gross)	1,859,417	1,796,731
Less depreciation and depletion	647,281	611,406
TOTAL PROPERTY, PLANT AND EQUIPMENT	1,212,136	1,185,325
OTHER ASSETS
Goodwill	1,715	1,715
Real estate and investments	23,024	20,865
Deferred income taxes and other charges	22,141	23,368
TOTAL OTHER ASSETS	46,880	45,948
TOTAL ASSETS	1,548,471	1,576,928
CURRENT LIABILITIES
Accounts payable	57,000	64,825
Accrued interest, compensation and other	48,134	61,317
Current portion of long-term debt	1,816	1,214
TOTAL CURRENT LIABILITIES	106,950	127,356
LONG-TERM DEBT	658,392	656,949
OTHER CREDITS	88,088	96,352
SHAREHOLDERS' EQUITY
Common stock, $1 par value; authorized 100,000 shares; issued and outstanding 28,324 and 27,996 shares, respectively	28,324	27,996
Additional paid-in capital	506,112	488,637
Retained earnings	184,542	204,136
Accumulated other comprehensive loss	(23,937)	(24,498)
TOTAL SHAREHOLDERS' EQUITY	695,041	696,271
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,548,471	$ 1,576,928

Represents deferred tax assets net, current and prepaid expense, current. Deferred Tax Assets, Net, Current represents the current portion of the aggregate tax effects as of the balance sheet date of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after deducting the allocated valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets shall be classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, shall be classified according to the expected reversal date of the temporary difference. An unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward should be presented as a reduction of the related deferred tax asset. Prepaid expense, current represents the sum of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer.

No definition available.