Other (Income) Expense, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Other (Income) Expense, Net
Net (gain) loss on sales of assets	$ (626)	$ 166	$ (100)
Rent income	(485)	(565)	(555)
Net (gain) loss on investments in deferred compensation program	33	(794)	(946)
Other	(84)	(107)	(21)
Other (income) expense, net	$ (1,162)	$ (1,300)	$ (1,622)