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Supplemental Cash Flow Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Mar. 31, 2013
Supplemental Cash Flow Information [Abstract]        
Cash received from interest $ 3,422 $ 2,395 $ 9,886 $ 8,104
Cash paid for interest 1,651 2,020 5,317 6,073
Cash paid for income taxes $ 1,570 $ 1,701 $ 16,097 $ 12,180