SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, SALE OF ASSET (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($) a	Sep. 30, 2013 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Proceeds from sale of property, plant, and equipment	$ 0	$ 6,010	$ 0
CR&R [Member]
Long Lived Assets Held-for-sale [Line Items]
Number of acres of undeveloped land | a		25.4
Proceeds from sale of property, plant, and equipment		$ 6,000
Pre-tax gain from sale of land		$ 313