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Supplemental Cash Flow Disclosures (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Supplemental Cash Flow Information [Line Items]        
Cash paid during the period for interest $ 3,931 $ 7,296 $ 12,473 $ 11,017
Cash received during the period for interest 340 519 1,071 961
Cash paid during the period for income taxes 9,129 6,401 46,690 15,058
International Subsidiaries [Member]
       
Supplemental Cash Flow Information [Line Items]        
Cash paid during the period for income taxes $ 0   $ 24,200