Quarterly Financial Data (unaudited) (Reported and Revised Investments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Mar. 31, 2013	Jun. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Reclassification from investing activities to financing activities	$ 208	$ 208	$ 407
Cash provided by (used in) investing activities				(3,305)	(12,842)	(426)
Cash provided by (used in) financing activities				138,721	14,478	5,200
As Reported [Member]
Cash provided by (used in) investing activities	189	(864)	(1,553)
Cash provided by (used in) financing activities	(386)	5,903	77,279
As Revised [Member]
Cash provided by (used in) investing activities	(19)	(1,072)	(1,960)
Cash provided by (used in) financing activities	$ (178)	$ 6,111	$ 77,686