Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2012

Organization and Summary of Significant Accounting Policies [Abstract]

Investments in available-for-sale securities and cash equivalents

	2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Money market	$	301,451	$	—	$	—	$	301,451
Auction rate securities		13,323		2,276		278		15,321
Total available-for-sale securities	$	314,774	$	2,276	$	278	$	316,772
	2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Money market	$	243,966	$	—	$	—	$	243,966
Auction rate securities		23,356		3,291		771		25,876
Total available-for-sale securities	$	267,322	$	3,291	$	771	$	269,842

Financial assets and liabilities measured at fair value on a recurring basis

	2012				2011
	Level 1		Level 3		Level 1		Level 3
Assets
Money market	$	301,451	$	—	$	243,966	$	—
Auction rate securities		—		15,321		—		25,876
Total available-for-sale securities	$	301,451	$	15,321	$	243,966	$	25,876
Liabilities
Contingent consideration liability recorded for business combination	$	—	$	11,900	$	—	$	—

Changes in fair value of Level 3 financial assets

	2012			2011
Beginning balance	$	25,876		$	28,012
Net unrealized gain/(loss)		(522	)		1,005
Impairment recovery of redeemed investments		77			59
Redemptions		(10,110	)		(3,200	)
Ending balance	$	15,321		$	25,876

Accounts Receivable Balance Percentage of Different Customers

	2012			2011
Customer A		14	%		12	%
Customer B		12	%		*

* Less than 10%

Inventories

	2012		2011
Raw materials	$	26,957	$	23,545
Finished goods		4,710		5,305
		$31,667	$	28,850

Other liabilities

	2012		2011
Customer obligation	$	13,076	$	7,837
Inventory obligation		5,680		6,275
Other		7,759		8,701
	$	26,515	$	22,813

Change in warranty liability

	2012			2011
Beginning accrued warranty	$	2,984		$	2,096
Provision for product warranties		1,759			5,963
Cost of warranty claims and settlements		(2,568	)		(5,075	)
Ending accrued warranty	$	2,175		$	2,984