Fair Value of Financial Instruments (Tables)

12 Months Ended

Jun. 30, 2012

Summary of Financial Assets Measured at Fair Value on Recurring Basis

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis at June 30, 2012:

	Fair Value Measurements
	June 30, 2012		Level 1		Level 2		Level 3
Assets:
U.S. Treasury bills and money market funds	$	97,049	$	97,049	$	—	$	—
Restricted cash		3,281		3,281		—		—
Total	$	100,330	$	100,330	$	—	$	—

Fair Value of Contingent Consideration, Whose Fair Values Were Determined by Level 3 Inputs

The following table provides a rollforward of the fair value of the contingent consideration, whose fair values were determined by Level 3 inputs:

	Fair Value
Balance at June 30, 2010	$	—
Contingent consideration from the LNX acquisition		4,828
Recognition of accretion expense in operating expenses		26
Balance at June 30, 2011	$	4,854
Recognition of accretion expense in operating expenses		84
Change in the fair value of the liability related to the LNX earn-out		(4,938	)
Balance at June 30, 2012	$	—

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes the Company’s financial assets and liabilities measured at fair value on a recurring basis at June 30, 2011:

	Fair Value Measurements
	June 30, 2011		Level 1		Level 2		Level 3
Assets:
U.S. Treasury bills and money market funds	$	153,038	$	153,038	$	—	$	—
Restricted cash		3,000		3,000		—		—
Total	$	156,038	$	156,038	$	—	$	—
Liabilities:
Contingent consideration	$	4,854	$	—	$	—	$	4,854