CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Current assets:
Cash and cash equivalents	$ 235,266	$ 276,850
Short-term investments	160,051	97,859
Accounts receivable, net	128,219	136,581
Inventory, net	53,162	56,676
Deferred tax assets	0	6,564
Other current assets	20,297	28,124
Total current assets	596,995	602,654
Long-term investments	145,623	107,590
Property, plant, and equipment, net	149,735	139,413
Goodwill and purchased intangibles, net	15,827	16,077
Deferred tax and other assets	25,257	10,308
Total assets	933,437	876,042
Current liabilities:
Accounts payable	39,133	32,781
Accrued liabilities	70,034	62,041
Total current liabilities	109,167	94,822
Long term debt, net of issuance costs	489,609	0
Long-term income taxes payable	11,968	12,984
Revolving line of credit	0	34,500
Other long-term liabilities	10,294	6,339
Total liabilities	$ 621,038	$ 148,645
Commitments and contingencies (Note 8)
Stockholders' equity:
Preferred stock, $0.01 par value per share; 1,000 shares authorized, no shares outstanding	$ 0	$ 0
Common stock, $0.01 par value per share; 100,000 shares authorized, 47,028 shares and 46,050 shares issued at 2016 and 2015, respectively	793	783
Additional paid-in capital	769,489	717,848
Accumulated other comprehensive income	3,759	10,120
Retained earnings	257,291	209,960
Total stockholders' equity before treasury stock	1,031,332	938,711
Less: Treasury stock (common: 13,709 shares and 4,449 shares at 2016 and 2015, respectively) at cost	(718,933)	(211,314)
Total stockholders' equity	312,399	727,397
Total liabilities and stockholders' equity	$ 933,437	$ 876,042