CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017
Current assets:
Cash and cash equivalents	$ 290,484	$ 301,970
Short-term investments	196,992	178,179
Accounts receivable, net	134,833	141,177
Inventory, net	57,571	55,456
Other current assets	35,486	22,195
Total current assets	715,366	698,977
Long-term investments	112,090	127,176
Property, plant, and equipment, net	148,759	150,307
Goodwill and purchased intangibles, net	15,514	15,577
Deferred tax and other assets	18,265	25,122
Total assets	1,009,994	1,017,159
Current liabilities:
Accounts payable	43,596	42,885
Accrued liabilities	59,039	74,285
Total current liabilities	102,635	117,170
Long term debt, net of issuance costs	491,421	491,059
Long-term income taxes payable	11,326	11,729
Other long-term liabilities	16,191	15,045
Total liabilities	621,573	635,003
Commitments and contingencies (Note 6)
Stockholders' equity:
Common stock	812	804
Additional paid-in capital	837,186	818,777
Accumulated other comprehensive income	2,705	4,694
Retained earnings	333,745	319,931
Total stockholders' equity before treasury stock	1,174,448	1,144,206
Less: Treasury stock, at cost	(786,027)	(762,050)
Total stockholders' equity	388,421	382,156
Total liabilities and stockholders' equity	$ 1,009,994	$ 1,017,159