CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
Current assets:
Cash and cash equivalents	$ 475,379	$ 276,850
Short-term investments	114,615	97,859
Accounts receivable, net	127,160	136,581
Inventory, net	55,918	56,676
Deferred tax assets	6,376	6,564
Other current assets	25,866	28,124
Total current assets	805,314	602,654
Long-term investments	92,753	107,590
Property, plant, and equipment, net	139,074	139,413
Goodwill and purchased intangibles, net	16,015	16,077
Other assets	6,530	10,308
Total assets	1,059,686	876,042
Current liabilities:
Accounts payable	38,398	32,781
Accrued liabilities	55,485	62,041
Total current liabilities	93,883	94,822
Long term debt, net of issuance costs	488,524	0
Long-term income taxes payable	11,999	12,984
Revolving line of credit	0	34,500
Other long-term liabilities	8,832	6,339
Total liabilities	$ 603,238	$ 148,645
Commitments and contingencies (Note 6)
Stockholders' equity:
Common stock	$ 790	$ 783
Additional paid-in capital	731,406	717,848
Accumulated other comprehensive income	4,555	10,120
Retained earnings	225,360	209,960
Total stockholders' equity before treasury stock	962,111	938,711
Less: Treasury stock, at cost	(505,663)	(211,314)
Total stockholders' equity	456,448	727,397
Total liabilities and stockholders' equity	$ 1,059,686	$ 876,042