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Supplemental Cash Flow Information (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 [Abstract]        
Cash received from interest $ 2,584 $ 1,780 $ 5,709 $ 4,489
Cash paid for interest 2,053 2,386 4,053 5,514
Cash paid for income taxes $ 10,137 $ 16,974 $ 10,479 $ 20,755