Restructuring 2012 Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended			0 Months Ended	12 Months Ended
	Sep. 30, 2013	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011	Apr. 26, 2012 2012 Restructuring [Member] employees	Sep. 30, 2013 2012 Restructuring [Member]	Sep. 30, 2012 2012 Restructuring [Member]	Sep. 30, 2013 2012 Restructuring [Member] Employee Termination Costs	Sep. 30, 2012 2012 Restructuring [Member] Employee Termination Costs	Sep. 30, 2013 2012 Restructuring [Member] Other	Sep. 30, 2012 2012 Restructuring [Member] Other
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated								30
Restructuring Reserve [Roll Forward]
Beginning Balance									$ 121	$ 0	$ 13	$ 0	$ 108	$ 0
Restructuring charge	400	1,000	100	200	313	1,259	154			963		568		395
Payments									(84)	(842)	0	(555)	(84)	(287)
Reversals									(37)		(13)		(24)
Ending Balance									$ 0	$ 121	$ 0	$ 13	$ 0	$ 108