Other (Income) Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Other (Income) Expense, Net
Equity interest in earnings of the JV (Note 4)	$ (684)	$ 0
Net (gain) loss on sales of assets	(3,699)	(1,602)
Rent income	(73)	(101)
Net (gain) loss on investments in deferred compensation program	(24)	(304)
Other	(108)	(2)
Other (income) expense, net	$ (4,588)	$ (2,009)