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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, unless otherwise specified
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Gain (Loss)
Balance at Dec. 31, 2009 $ 255,327 $ 106 $ 818,992 $ (563,858) $ 87
Balance (in shares) at Dec. 31, 2009   105,934      
Increase (Decrease) in Stockholders' Equity          
Net income (loss) 150,917 0 0 150,917 0
Unrealized gain (loss) on marketable securities, net of tax (449) 0 0 0 (449)
Issuance of common stock upon exercise of options, equity stock and employee stock purchase plan 15,067 1 15,066 0 0
Issuance of common stock upon exercise of options, equity stock and stock units, and employee stock purchase plan (in shares)   1,481      
Issuance of common stock due to the settlement with Samsung 78,500 5 78,495 0 0
Issuance of common stock due to the settlement with Samsung (in shares)   4,788      
Repurchase and retirement of common stock under repurchase plan (195,107) (9) (31,449) (163,649) 0
Repurchase and retirement of common stock under repurchase plan (in shares)   9,527      
Stock-based compensation 30,528 0 30,528 0 0
Balance at Dec. 31, 2010 334,783 103 911,632 (576,590) (362)
Balance (in shares) at Dec. 31, 2010   102,676      
Increase (Decrease) in Stockholders' Equity          
Net income (loss) (43,053) 0 0 (43,053) 0
Unrealized gain (loss) on marketable securities, net of tax (27) 0 0 0 (27)
Issuance of common stock upon exercise of options, equity stock and employee stock purchase plan 10,094 1 10,093 0 0
Issuance of common stock upon exercise of options, equity stock and stock units, and employee stock purchase plan (in shares)   1,371      
Net issuance of common stock due to CRI acquisition 86,143 6 86,137 0 0
Net issuance of common stock due to CRI acquisition (in shares)   6,220      
Settlement of Samsung’s option related to the contingently redeemable common stock (13,500) 0 (13,500) 0 0
Stock-based compensation 28,354 0 28,354 0 0
Balance at Dec. 31, 2011 429,794 110 1,049,716 (619,643) (389)
Balance (in shares) at Dec. 31, 2011   110,267      
Increase (Decrease) in Stockholders' Equity          
Net income (loss) (134,336) 0 0 (134,336) 0
Unrealized gain (loss) on marketable securities, net of tax 89 0 0 0 89
Issuance of common stock upon exercise of options, equity stock and employee stock purchase plan 3,501 2 3,499 0 0
Issuance of common stock upon exercise of options, equity stock and stock units, and employee stock purchase plan (in shares)   1,258      
Stock-based compensation 22,546 0 22,546 0 0
Balance at Dec. 31, 2012 $ 321,594 $ 112 $ 1,075,761 $ (753,979) $ (300)
Balance (in shares) at Dec. 31, 2012   111,525