Convertible Senior Notes (Tables)

3 Months Ended

Oct. 31, 2021

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):

	October 31, 2021		July 31, 2021
Principal	$	400,000	$	400,000
Less unamortized:
Debt discount	47,022		50,198
Debt issuance costs	5,629		5,977
Net carrying amount	$	347,349	$	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 October 31,
	2021		2020
Contractual interest expense	$	1,250	$	1,250
Amortization of debt discount	3,176		3,020
Amortization of debt issuance costs	348		315
Total	$	4,774	$	4,585