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DEBT DEBT (Tables)
 12 Months Ended
Jul. 31, 2018
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
The total net proceeds from the Notes are as follows:
 
Amount
 
(in thousands)
Principal amount
$
575,000

Less: initial purchasers' discount
(10,781
)
Less: cost of the bond hedges
(143,175
)
Add: proceeds from the sale of warrants
87,975

Less: other issuance costs
(707
)
Net proceeds
$
508,312
Schedule of Debt
The Notes consisted of the following:
 
As of
July 31, 2018
 
(in thousands)
Principal amounts:
 
Principal
$
575,000

Unamortized debt discount (1)
(137,719
)
Unamortized debt issuance costs (1)
(7,683
)
Net carrying amount
$
429,598

Carrying amount of equity component (2)
$
148,598

 
(1)
Included in the consolidated balance sheets within "Convertible senior notes, net" and amortized over the remaining life of the Notes using the effective interest rate method. The effective interest rate is 6.62%.
(2)
Included in the consolidated balance sheets within additional paid-in capital, net of $3.0 million in equity issuance costs.
Interest Income and Interest Expense Disclosure
The following table sets forth the total interest expense recognized related to the Notes:
 
Fiscal Year Ended July 31, 2018
 
(in thousands)
Interest expense related to amortization of debt discount
$
13,909

Interest expense related to amortization of debt issuance costs
776

Total interest expense
$
14,685