Goodwill and Other Intangible Assets (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012
Estimate of the amount and classification of amortization expense for definite-lived intangible assets
Amortization Expense, 2013	$ 3,886
Amortization Expense, 2014	5,344
Amortization Expense, 2015	5,063
Amortization Expense, 2016	5,003
Amortization Expense, 2017	4,914
Operations Expense, 2013	102
Operations Expense, 2014	125
Operations Expense, 2015	113
Operations Expense, 2016	111
Operations Expense, 2017	111
Interest Expense, 2013	2,230
Interest Expense, 2014	2,123
Interest Expense, 2015	1,011
Interest Expense, 2016	574
Interest Expense, 2017	$ 464