DEBT (Tables)

6 Months Ended

Jan. 31, 2018

Net Carrying Value of the Notes

	January 31,			July 31,
	2018			2017
	(In thousands)
Carrying amount of equity component (net of allocated debt issuance costs)	$	26,961		$	26,961
Principal amount of Notes	$	67,625		$	67,625
Unamortized debt discount		(5,110	)		(7,227	)
Unamortized debt issuance costs		(453	)		(640	)
Net carrying amount	$	62,062		$	59,758

Summary of Interest Expense Related to Convertible Notes

	Three Months Ended				Six Months Ended
	January 31,				January 31,
	2018		2017		2018		2017
	(In thousands)				(In thousands)
Interest expense related to contractual interest coupon	$	913	$	888	$	1,827	$	1,823
Interest expense related to accretion of the discount		1,076		999		2,117		1,940
Interest expense related to debt issuance costs		95		89		187		172
	$	2,084	$	1,976	$	4,131	$	3,935