Fair Value Measurements (Tables)

3 Months Ended

Oct. 31, 2013

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 October 31, 2013 and as of July 31, 2013:

			Fair Value Measurements at Reporting Date Using (in thousands)
October 31, 2013	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)	$	30,716	$	30,716	$	—	$	—
Marketable securities (2)		87,269		11,824		75,445		—
Total assets	$	117,985	$	42,540	$	75,445	$	—

July 31, 2013	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)	$	28,235	$	28,235	$	—	$	—
Marketable securities (2)		93,306		8,553		84,753		—
Total assets	$	121,541	$	36,788	$	84,753	$	—

(1) Cash and cash equivalents as of October 31, 2013 and July 31, 2013 included cash held in operating accounts of approximately $25.3 million and $25.9 million, respectively that were not subject to fair value measurements. For purposes of this disclosure they are included as having Level 1 inputs.

(2) Marketable securities as of October 31, 2013 and July 31, 2013 excluded approximately $0 million and $2.8 million, respectively, of commercial paper which was held-to-maturity and not subject to fair value measurements.