OTHER LONG-TERM ASSETS (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2013 USD ($)	Jun. 30, 2015 USD ($) Security	Sep. 30, 2014 USD ($)
Other long-term assets [Abstract]
Auction rate securities (ARS)		$ 5,694	$ 5,895
Other long-term assets		5,611	3,043
Long-term contract asset		4,230	0
Other long-term investments		1,855	1,654
Total		$ 17,390	$ 10,592
Number of Auction rate securities | Security		2
Auction rate securities (ARS)		$ 5,117
Reduction in fair value Auction Rate Securities, pretax		577
Percentage of par value received from auction rate security settlement	65.00%
Monetization of Auction Rate Securities	$ 2,113
Reversal of temporary impairment	$ 234
Long-term contract asset face amount		4,500
Long-term liability, SERP investments		$ 1,855