Nature of Operations	12 Months Ended
Aug. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of operations	NOTE 1. NATURE OF OPERATIONS Nature of Operations Through its global operations and marketing offices, Commercial Metals Company ("CMC," and together with its consolidated subsidiaries, the "Company") recycles ferrous and nonferrous scrap metal, operates steel mills, commonly referred to as "minimills", and fabrication shops and trades and distributes steel and nonferrous metal products and other industrial products worldwide. The Company has five business segments across two geographic divisions, the CMC Americas Division and the CMC International Division. The CMC Americas Division includes three segments: Americas Recycling, Americas Mills and Americas Fabrication. The CMC International Division includes two segments: International Mill and International Marketing and Distribution. Americas Recycling The Americas Recycling segment processes scrap metals for use as a raw material by manufacturers of new metal products. This segment sells scrap metals to steel mills and foundries, aluminum sheet and ingot manufacturers, brass and bronze ingot makers, copper refineries and mills, secondary lead smelters, specialty steel mills, high temperature alloy manufacturers and other consumers. Americas Mills The Americas Mills segment manufactures finished long steel products including rebar, merchant bar, light structural, some special bar quality (SBQ) and other special sections as well as semi-finished billets for re-rolling and forging applications. This segment's products are sold to the construction, service center, transportation, steel warehousing, fabrication, energy, petrochemical and original equipment manufacturing industries. Americas Fabrication The Americas Fabrication segment consists of rebar and structural fabrication operations, fence post manufacturing plants, construction-related product facilities and plants that heat-treat steel to strengthen and provide flexibility. Fabricated steel products are used primarily in the construction of commercial and non-commercial buildings, hospitals, convention centers, industrial plants, power plants, highways, bridges, arenas, stadiums and dams. International Mill The International Mill segment is comprised of all recycling and fabrication operations and one steel mill located in Poland. Principal products manufactured include rebar and wire rod as well as merchant bar and billets. International Marketing and Distribution The International Marketing and Distribution segment includes international operations for the sale, distribution and processing of steel products, ferrous and nonferrous metals and other industrial products. Additionally, this segment includes the U.S.-based marketing and distribution divisions and also operates a recycling facility in Singapore. The International Marketing and Distribution segment buys and sells primary and secondary metals, fabricated metals, semi-finished, long and flat steel products and other industrial products. This segment sells its products to customers, primarily manufacturers, in the steel, nonferrous metals, metal fabrication, chemical, refractory, construction and transportation businesses.

NOTE 1. NATURE OF OPERATIONS

Nature of Operations Through its global operations and marketing offices, Commercial Metals Company ("CMC," and together with its consolidated subsidiaries, the "Company") recycles ferrous and nonferrous scrap metal, operates steel mills, commonly referred to as "minimills", and fabrication shops and trades and distributes steel and nonferrous metal products and other industrial products worldwide.

The Company has five business segments across two geographic divisions, the CMC Americas Division and the CMC International Division. The CMC Americas Division includes three segments: Americas Recycling, Americas Mills and Americas Fabrication. The CMC International Division includes two segments: International Mill and International Marketing and Distribution.

Americas Recycling The Americas Recycling segment processes scrap metals for use as a raw material by manufacturers of new metal products. This segment sells scrap metals to steel mills and foundries, aluminum sheet and ingot manufacturers, brass and bronze ingot makers, copper refineries and mills, secondary lead smelters, specialty steel mills, high temperature alloy manufacturers and other consumers.

Americas Mills The Americas Mills segment manufactures finished long steel products including rebar, merchant bar, light structural, some special bar quality (SBQ) and other special sections as well as semi-finished billets for re-rolling and forging applications. This segment's products are sold to the construction, service center, transportation, steel warehousing, fabrication, energy, petrochemical and original equipment manufacturing industries.

Americas Fabrication The Americas Fabrication segment consists of rebar and structural fabrication operations, fence post manufacturing plants, construction-related product facilities and plants that heat-treat steel to strengthen and provide flexibility. Fabricated steel products are used primarily in the construction of commercial and non-commercial buildings, hospitals, convention centers, industrial plants, power plants, highways, bridges, arenas, stadiums and dams.

International Mill The International Mill segment is comprised of all recycling and fabrication operations and one steel mill located in Poland. Principal products manufactured include rebar and wire rod as well as merchant bar and billets.

International Marketing and Distribution The International Marketing and Distribution segment includes international operations for the sale, distribution and processing of steel products, ferrous and nonferrous metals and other industrial products. Additionally, this segment includes the U.S.-based marketing and distribution divisions and also operates a recycling facility in Singapore. The International Marketing and Distribution segment buys and sells primary and secondary metals, fabricated metals, semi-finished, long and flat steel products and other industrial products. This segment sells its products to customers, primarily manufacturers, in the steel, nonferrous metals, metal fabrication, chemical, refractory, construction and transportation businesses.