Income Taxes - Principal Reasons for Differences from Federal Statutory Rate (Detail)	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Abstract]
Federal tax at statutory rate	34.00%	34.00%
True-up of prior year's tax provision	2.50%	(0.20%)
State tax at statutory rate	5.50%	5.80%
Permanent differences	0.40%	0.70%
Disallowed capital loss	0.10%	0.80%
Effective Tax Rate	42.50%	41.10%