Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2012

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities of the Company measured at fair value on a recurring basis as of June 30, 2012 and September 30, 2011 are summarized as follows (in thousands):

			Fair Value Measurements at Reporting Date Using
Description	June 30, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash Equivalents	$	20,613	$	20,613	$	—	$	—
Available-for-sale securities		142,104		62,008		80,096		—
Total Assets	$	162,717	$	82,621	$	80,096	$	—
Liabilities
Foreign exchange contracts	$	13	$	—	$	13	$	—

			Fair Value Measurements at Reporting Date Using
Description	September 30, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash Equivalents	$	9,576	$	9,576	$	—	$	—
Available-for-sale securities		146,985		63,331		83,654		—
Total Assets	$	156,561	$	72,907	$	83,654	$	—