Amount of amortization expense attributable to debt issuance costs.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt Obligations - Junior Subordinated Notes (Details) - Junior subordinated notes - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	Jun. 30, 2016	Sep. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Debt Instrument [Line Items]
Total debt obligations	$ 37,400	$ 37,400	$ 37,400		$ 37,400
Interest expense			318	$ 458	1,233	$ 1,375
Amortization of deferred costs included in interest expense			$ 5	$ 5	$ 15	$ 15
Debt Instrument, Interest Rate 30 April, 2016 Through 30 April, 2036
Debt Instrument [Line Items]
Description of variable rate basis	LIBOR	LIBOR
Basis spread on variable rate	2.00%	2.00%