Fair Value Measurements (Tables)

6 Months Ended

Jan. 31, 2015

Financial Assets and Liabilities Measured at Fair Value Related Valuation Inputs

The following table presents financial assets and liabilities measured at fair value and their related valuation inputs as of January 31, 2015 and July 31, 2014:

			Fair Value Measurements at Reporting Date Using (in thousands)
January 31, 2015	Total Fair Value of Asset or Liability		Quoted Prices in Active   Markets for Identical Assets (Level 1)		Significant Other     Observable Inputs     (Level 2)		Significant     Unobservable Inputs     (Level 3)
Cash and cash equivalents (1)	$	73,419	$	73,419	$	—	$	—
Marketable securities		56,890		5,826		51,064		—
Total assets	$	130,309	$	79,245	$	51,064	$	—
July 31, 2014	Total Fair Value of Asset or Liability		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other     Observable Inputs     (Level 2)		Significant     Unobservable Inputs     (Level 3)
Cash and cash equivalents (1)	$	59,269	$	59,269	$	—	$	—
Marketable securities		39,659		3,974		35,685		—
Total assets	$	98,928	$	63,243	$	35,685	$	—

(1) Cash and cash equivalents as of January 31, 2015 and July 31, 2014 included cash held in operating accounts of approximately $71.3 million and $56.0 million, respectively that are not subject to fair value measurements. For purposes of this disclosure, they are included as having level 1 inputs.