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Intangible Assets and Goodwill 2 (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Dec. 31, 2012
Finite lived intangible assets future amortization expense  
2013 $ 37,634
2014 36,944
2015 33,763
2016 25,412
2017 11,491
Thereafter 20,970
Total $ 166,214