Stock-Based Compensation and Employee Benefit Plans (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Performance based awards
Stock-Based Compensation and Employee Benefit Plans
Compensation cost recognized	$ 0	$ 0
Stock option | Time-based awards
Stock-Based Compensation and Employee Benefit Plans
Total unrecognized compensation cost	4,748
Weighted average period for recognition of unrecognized compensation cost	2 years 8 months 12 days
Stock option | Performance based awards
Stock-Based Compensation and Employee Benefit Plans
Total unrecognized compensation cost	4,022
Compensation cost recognized	$ 0	$ 0