INCOME TAXES (Schedule of Income Before Income Tax, Domestic and Foreign) (Details) - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Sep. 30, 2015	[1]	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2014	[1]	Sep. 30, 2014	[1]	Jun. 30, 2014	[1]	Mar. 31, 2014	[1]	Dec. 31, 2013	[1]	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Domestic loss																	$ 22,788	$ (36,756)	$ (17,823)
Foreign income																	456,182	434,049	422,624
INCOME BEFORE INCOME TAXES	$ 166,115		$ 122,539		$ 134,976		$ 55,340		$ 126,385		$ 79,365		$ 97,283		$ 94,260		$ 478,970	$ 397,293	$ 404,801

[1] The sum of the individual quarterly earnings per common share amounts may not agree with year-to-date earnings per common share as each quarterly computation is based on the weighted-average number of common shares outstanding during that period.