Consolidated Statements Of Financial Position (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Common Stock, Par or Stated Value Per Share	$ 0	$ 0
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares, Issued	52,799,000	52,431,000
Common Stock, Shares, Outstanding	51,483,000	52,226,000
Treasury Stock, Shares	1,316,000	205,000
Trade accounts receivable, allowances	$ 21,870	$ 14,128
Property, plant and equipment, accumulated depreciation	$ 139,994	$ 107,357