Senior Notes (Tables)

6 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Carrying Amounts and Fair Values of Senior Notes

The following table presents the carrying amounts and fair values for the Senior Notes at March 31, 2018 and September 30, 2017:

	March 31, 2018						September 30, 2017
	Carrying Amounts			Fair Value			Carrying Amounts			Fair Value
	(In thousands)
The 2008 Senior Notes	$	131,000		$	131,527		$	131,000		$	134,250
The 2010 Senior Notes	113,000			116,601			113,000			119,106
Debt issuance costs	(132		)	(132		)	(199		)	(199		)
Total	$	243,868		$	247,996		$	243,801		$	253,157