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Cash, Cash Equivalents and Marketable Securities

12 Months Ended

Jul. 31, 2012

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Marketable Securities

(3) Cash, Cash Equivalents and Marketable Securities

As of July 31, 2012, cash and cash equivalents include the following (in thousands):

				Cost				Unrealized Gains				Unrealized Losses Less Than 12 Months				Unrealized Losses 12 Months or Longer				Estimated Fair Value
Cash				$	96,779			$	—			$	—			$	—			$	96,779
Money market funds					43,333				—				—				—				43,333
Total				$	140,112			$	—			$	—			$	—			$	140,112

As of July 31, 2011, cash and cash equivalents include the following (in thousands):

				Cost				Unrealized Gains				Unrealized Losses Less Than 12 Months				Unrealized Losses 12 Months or Longer				Estimated Fair Value
Cash				$	42,664			$	—			$	—			$	—			$	42,664
Money market funds					31,345				—				—				—				31,345
Total				$	74,009			$	—			$	—			$	—			$	74,009

The Company invests its excess cash in money market funds and U.S. Treasury Bills. The Company’s cash and cash equivalents are placed with high credit quality financial institutions.

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- Definition

The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss).

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