INVENTORIES, NET	6 Months Ended
INVENTORIES, NET	Feb. 28, 2015
Inventory Disclosure [Abstract]
Inventories, net	NOTE 4. INVENTORIES, NET Inventories are stated at the lower of cost or market. Inventory cost for most U.S. inventories is determined by the last-in, first-out ("LIFO") method. At February 28, 2015 and August 31, 2014, 57% and 44%, respectively, of the Company's total net inventories were valued at LIFO. LIFO inventory reserves were $120.2 million and $198.8 million at February 28, 2015 and August 31, 2014, respectively. Effective September 1, 2014, the Company changed its method of determining its interim LIFO inventory reserve from the complete quarterly LIFO valuation method to the expected annual LIFO valuation method. Under the expected annual LIFO valuation method, interim LIFO expense or income is based on management's current estimates of inventory costs and quantities at year end, and that annual estimate is incurred ratably over the remainder of the fiscal year. Key assumptions related to estimates of inventory costs used in management’s estimate changed in the three months ended February 28, 2015 resulting in a change in the annual LIFO estimate for the fiscal year ended August 31, 2015. Accordingly, the Company recorded pre-tax LIFO income of $72.5 million and $78.7 million for the three and six months ended February 28, 2015, respectively. Inventory cost for the International Mill segment is determined by the weighted average cost method. Inventory cost for the remaining international and U.S. inventories is determined by the first-in, first-out ("FIFO") method. The majority of the Company's inventories are in the form of finished goods with minimal work in process. At February 28, 2015 and August 31, 2014, $82.6 million and $84.3 million, before LIFO reserves, respectively, of the Company's inventories were in the form of raw materials.

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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