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Supplemental Cash Flow Disclosures (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Supplemental Cash Flow Information [Line Items]        
Cash paid during the period for interest $ 4,302 $ 1,139 $ 8,542 $ 3,721
Cash received during the period for interest 322 290 731 442
Cash paid during the period for income taxes 21,280 7,891 37,561 8,657
International Subsidiaries [Member]
       
Supplemental Cash Flow Information [Line Items]        
Cash paid during the period for income taxes $ 8,800   $ 24,200