EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Dec. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Selling, general and administrative expenses		$ 117,989	$ 115,112	$ 343,526	$ 326,229
Other, net		979	1,228	3,251	3,988
Interest cost		1,570	1,408	4,711	4,222
Expected return on plan assets		(2,583)	(2,714)	(7,749)	(7,992)
Amortization:
Prior service cost		4	3	11	11
Recognized actuarial loss		222	345	666	1,037
Net periodic expense (income)		$ (787)	(958)	$ (2,361)	(2,722)
Pension settlement gain	$ 13,715
Accounting Standards Update 2017-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Selling, general and administrative expenses			958		2,722
Other, net			$ (958)		$ (2,722)