Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2015
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Income Tax Expense (Benefit)	$ 4,504	$ 651	$ 19,904	$ 654
Federal income tax	2,837	574	16,182	574
State income tax	$ 1,667	$ 77	$ 3,722	$ 80
Reconciliation of the statutory tax rate to effective tax rate
Income taxes computed at the federal statutory rate	35.00%		35.00%
State taxes, net of federal benefit	4.80%		4.80%
Net income attributable to non-controlling interest	(19.20%)		(23.70%)
Total	20.60%		16.10%
Net deferred tax asset	$ 45,383		$ 45,383
Uncertain tax provisions	$ 0		$ 0		$ 0