Convertible Senior Notes (Tables)

6 Months Ended

Jan. 31, 2022

Debt Disclosure [Abstract]

Schedule of convertible debt

The net carrying value of the liability component, unamortized debt discount and unamortized debt issuance costs of the Convertible Senior Notes was as follows (in thousands):

	January 31, 2022		July 31, 2021
Principal	$	400,000	$	400,000
Less unamortized:
Debt discount	43,807		50,198
Debt issuance costs	5,272		5,977
Net carrying amount	$	350,921	$	343,825

The effective interest rate of the Convertible Senior Notes is 5.53%. The following table sets forth the interest expense recognized related to the Convertible Senior Notes (in thousands):

	Three Months Ended January 31,				Six Months Ended January 31,
	2022		2021		2022		2021
Contractual interest expense	$	1,250	$	1,250	$	2,500	$	2,500
Amortization of debt discount	3,215		3,057		6,391		6,077
Amortization of debt issuance costs	357		322		705		637
Total	$	4,822	$	4,629	$	9,596	$	9,214