Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Current:
Federal	$ (6,149)	$ 10,060	$ 23,437
State and foreign	2,000	(11,132)	593
Total	(4,149)	(1,072)	24,030
Deferred:
Federal	(5,643)	(1,220)	(17,689)
State and foreign	(16,903)	(4,954)	2,756
Total	(22,546)	(6,174)	(14,933)
Total income tax (benefit) expense	$ (26,695)	$ (7,246)	$ 9,097