DEBT (Tables)

9 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Summary of Long-Term Debt

A summary of long-term debt is as follows:

(In thousands)	June 30, 2017			September 30, 2016
6.5% Senior Notes due 2020 ("Senior Notes") aggregate principal amount	$	448,650		$	448,650
Senior Notes unamortized premium	2,568			3,245
Senior Notes unamortized debt issuance costs	(3,082		)	(3,976		)
Total Senior Notes	448,136			447,919
Revolving Credit Facility ("Credit Facility")	850,000			780,000
Total long-term debt	$	1,298,136		$	1,227,919