Income Taxes, Components (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Income Tax Expense Benefit Continuing Operations [Line Items]
Total Income Tax Expense (Benefit)	$ 8,776	$ 7,312	$ 25,323	$ 20,537