Stock-based Compensation - Schedule of Fair Value at the Date of Grant (Detail)	3 Months Ended
	Dec. 31, 2013
Fiscal 2012 - 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum Shares	12,499
Target Shares	62,497
Maximum Shares	124,994
Fiscal 2013 - 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum Shares	8,551
Target Shares	42,753
Maximum Shares	85,506
Fiscal 2014 - 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum Shares	7,861
Target Shares	39,303
Maximum Shares	78,606