Income Taxes (Unrecognized tax benefit) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balances at beginning of the year	$ 2,810	$ 2,360	$ 2,630
Additions (reductions) related to current year tax positions	0	0	(390)
Additions related to tax positions taken in prior years	370	530	360
Reductions related to settlements with tax authorities	0	0	(240)
Reductions due to lapse of statute of limitations	0	(80)	0
Balance at the end of the year	$ 3,180	$ 2,810	$ 2,360