Quarterly report pursuant to Section 13 or 15(d)

Guarantor Subsidiaries (Schedule Of Condensed Consolidating Statements Of Cash Flows) (Details)

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Guarantor Subsidiaries (Schedule Of Condensed Consolidating Statements Of Cash Flows) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Nov. 30, 2011
Nov. 30, 2010
Guarantor Obligations [Line Items]    
Net cash provided by (used in) operating activities $ 20,475 $ 6,486
Proceeds from sale of property, plant and equipment 5,918 59
Capital expenditures (5,595) (4,077)
Business acquisitions, net of cash acquired (290) (326)
Net cash provided by (used in) investing activities 33 (4,344)
Net borrowings (repayments) on revolver and other debt 4,809 14
Purchase of treasury shares (20,410)  
Repurchases of 2% Convertible Notes   (34)
Intercompany loan activity      
Stock option exercises, related tax benefits and other 2,782 3,553
Cash dividend (2,748) (2,716)
Net cash (used in) provided by financing activities (15,567) 817
Effect of exchange rate changes on cash (1,043) 1,029
Net increase in cash and cash equivalents 3,898 3,988
Cash and cash equivalents - beginning of period 44,221 40,222
Cash and cash equivalents - end of period 48,119 44,210
Parent [Member]
   
Guarantor Obligations [Line Items]    
Net cash provided by (used in) operating activities (10,089) (16,313)
Capital expenditures (2,206) (319)
Business acquisitions, net of cash acquired (290)  
Net cash provided by (used in) investing activities (2,496) (319)
Net borrowings (repayments) on revolver and other debt 4,700  
Purchase of treasury shares (20,410)  
Repurchases of 2% Convertible Notes   (34)
Intercompany loan activity 28,060 13,276
Stock option exercises, related tax benefits and other 2,782 3,553
Cash dividend (2,748) (2,716)
Net cash (used in) provided by financing activities 12,384 14,079
Net increase in cash and cash equivalents (201) (2,553)
Cash and cash equivalents - beginning of period 872 5,055
Cash and cash equivalents - end of period 671 2,502
Guarantors [Member]
   
Guarantor Obligations [Line Items]    
Net cash provided by (used in) operating activities 7,121 9,615
Proceeds from sale of property, plant and equipment 68 16
Capital expenditures (571) (1,466)
Business acquisitions, net of cash acquired   (350)
Net cash provided by (used in) investing activities (503) (1,800)
Intercompany loan activity (6,618) (7,815)
Net cash (used in) provided by financing activities (6,618) (7,815)
Non-Guarantors [Member]
   
Guarantor Obligations [Line Items]    
Net cash provided by (used in) operating activities 23,443 14,717
Proceeds from sale of property, plant and equipment 5,850 43
Capital expenditures (2,818) (2,292)
Business acquisitions, net of cash acquired   24
Net cash provided by (used in) investing activities 3,032 (2,225)
Net borrowings (repayments) on revolver and other debt 109 14
Intercompany loan activity (21,442) (5,461)
Cash dividend   (1,533)
Net cash (used in) provided by financing activities (21,333) (6,980)
Effect of exchange rate changes on cash (1,043) 1,029
Net increase in cash and cash equivalents 4,099 6,541
Cash and cash equivalents - beginning of period 43,349 35,167
Cash and cash equivalents - end of period 47,448 41,708
Eliminations [Member]
   
Guarantor Obligations [Line Items]    
Net cash provided by (used in) operating activities   (1,533)
Intercompany loan activity      
Cash dividend   1,533
Net cash (used in) provided by financing activities   $ 1,533