DEBT (Tables)

12 Months Ended

Sep. 30, 2018

DEBT

Schedule of components of unsecured long-term debt outstanding

	September 30, 2018						September 30, 2017
			Unamortized						Unamortized
	Face		Debt Issuance		Book		Face		Debt Issuance		Book
	Amount		Cost		Value		Amount		Cost		Value
	(in thousands)
Unsecured senior notes issued March 19, 2015:
Due March 19, 2025	$	500,000	$	(6,032)	$	493,968	$	500,000	$	(7,098)	$	492,902
		500,000		(6,032)		493,968		500,000		(7,098)		492,902
Less long-term debt due within one year		—		—		—		—		—		—
Long-term debt	$	500,000	$	(6,032)	$	493,968	$	500,000	$	(7,098)	$	492,902

Schedule of aggregate maturities of long-term debt

At September 30, 2018, aggregate maturities of long-term debt are as follows (in thousands):

Year ending September 30,
2019	$	—
2020		—
2021		—
2022		—
2023		—
Thereafter		500,000
	$	500,000