FAIR VALUE MEASUREMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended								3 Months Ended	9 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2013 Not Designated as Hedging Instrument [Member]	Jul. 02, 2013 Designated as Hedging Instrument [Member]	Apr. 03, 2013 Designated as Hedging Instrument [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 1 [Member] Convertible Notes 2017 [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 1 [Member] Senior Notes 2018 [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 1 [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 2 [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 2 [Member]	Jun. 30, 2013 Convertible Notes 2017 [Member]	Jun. 30, 2013 Australian Dollar Forward Contracts [Member]	Jul. 02, 2013 Foreign Exchange Forward [Member]	Apr. 03, 2013 Foreign Exchange Forward [Member]	Jun. 30, 2013 Foreign Exchange Contract [Member]	Sep. 30, 2012 Foreign Exchange Contract [Member]	Jun. 30, 2013 Minimum [Member]	Jun. 30, 2013 Maximum [Member]
FAIR VALUE MEASUREMENTS (Details) [Line Items]
Debt Instrument, Interest Rate, Effective Percentage												4.00%
Senior Notes, Noncurrent								$ 594,000
Convertible Debt, Fair Value Disclosures							106,900
Insurance Contracts Fair Value									3,922
Trading Securities									2,198
Derivative Asset, Notional Amount													1,000
Derivative, Average Forward Exchange Rate				1.09
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments										135	122
Foreign Currency Contracts Duration																		15 days	60 days
Derivative, Notional Amount														1,313	3,375
Derivative, Forward Exchange Rate					1.31	1.35
Unrealized Gain on Foreign Currency Derivatives, before Tax	171	171
Prepaid Expense and Other Assets, Current	$ 58,711	$ 58,711	$ 47,472													$ 13	$ 0