Accounts Payable and Other Accrued Expenses and Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Accounts payable and other accrued expenses
Trade accounts payable	$ 34,950	$ 22,014
Accrued payroll	14,768	9,333
Bonus accrual	6,300	7,528
Other payroll related expenses	4,137	4,265
Accrued interest	2,984	1,414
Accrued rent and property taxes	14,064	13,350
Accrual for expected losses on credit service letters of credit	4,708	2,623
Collected funds payable to unaffiliated lenders under credit service programs	1,026	1,036
Deferred revenues	6,189	5,252
Other accrued expenses	8,087	13,152
Total	$ 97,213	$ 79,967