Fair Value of Financial Instruments (Tables)
6 Months Ended
Jan. 31, 2015
Fair Value Disclosures [Abstract]  
Fair Value Measurements on Recurring Basis
The following table summarizes the fair value measurements of the Company’s cash, cash equivalents and short-term investments:
 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Balance at January 31, 2015
 
 
 
 
 
 
 
Assets
 
 
 
 
 
 
 
Cash and cash equivalents:
 
 
 
 
 
 
 
Cash deposits with third-party financial institutions
$
122,634

 
$

 
$

 
$
122,634

Money market funds
27,815

 

 

 
27,815

Commercial paper

 
1,500

 

 
1,500

Short-term investments:
 
 
 
 
 
 
 
Corporate bonds

 
44,273

 

 
44,273

U.S. government agency securities

 
79,542

 

 
79,542

U.S. treasury bills

 
9,837

 

 
9,837

Commercial paper

 
5,397

 

 
5,397

Total
$
150,449

 
$
140,549

 
$

 
$
290,998


 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Balance at July 31, 2014
 
 
 
 
 
 
 
Assets
 
 
 
 
 
 
 
Cash and cash equivalents:
 
 
 
 
 
 
 
Cash deposits with third-party financial institutions
$
113,303

 
$

 
$

 
$
113,303

Money market funds
2,291

 

 

 
2,291

Commercial paper

 
3,000

 

 
3,000

Short-term investments:
 
 
 
 
 
 
 
Corporate bonds

 
55,033

 

 
55,033

U.S. government agency securities

 
90,640

 

 
90,640

U.S. treasury bills

 
14,577

 

 
14,577

Commercial paper

 
4,591

 

 
4,591

Municipal notes and bonds

 
1,518

 

 
1,518

Total
$
115,594

 
$
169,359

 
$

 
$
284,953