CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Mar. 31, 2013
ASSETS
Cash and cash equivalents	$ 375,100	$ 528,334
Short-term investments	932,302	1,050,263
Accounts receivable, net	224,273	229,955
Inventories	274,629	242,334
Prepaid expenses	29,441	37,439
Deferred tax assets	72,142	80,687
Other current assets	61,141	67,358
Total current assets	1,969,028	2,236,370
Property, plant and equipment, net	520,565	514,544
Long-term investments	723,925	257,450
Goodwill	275,967	271,348
Intangible assets, net	466,278	530,136
Other assets	47,345	41,557
Total assets	4,003,108	3,851,405
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	62,750	75,551
Accrued liabilities	96,176	127,108
Short-term borrowings	14,159	0
Deferred income on shipments to distributors	143,315	138,952
Total current liabilities	316,400	341,611
Junior convertible debentures	369,618	363,385
Long-term line of credit	300,000	620,000
Long-term borrowings, net	335,694	0
Long-term income tax payable	179,246	182,723
Deferred tax liability	388,620	388,250
Other long-term liabilities	38,422	21,966
Stockholders' equity:
Preferred stock, $0.001 par value; authorized 5,000,000 shares; no shares issued or outstanding	0	0
Common stock, $0.001 par value; authorized 450,000,000 shares; 218,789,994 shares issued and 199,117,558 shares outstanding at December 31, 2013; 218,789,994 shares issued and 196,472,856 shares outstanding at March 31, 2013	199	196
Additional paid-in capital	1,254,764	1,255,627
Common stock held in treasury: 19,672,436 shares at December 31, 2013; 22,317,138 shares at March 31, 2013	(603,672)	(682,220)
Accumulated other comprehensive (loss) income	(2,579)	6,935
Retained earnings	1,426,396	1,352,932
Total stockholders' equity	2,075,108	1,933,470
Total liabilities and stockholders' equity	$ 4,003,108	$ 3,851,405