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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, 2010 | $ 334,783 | $ 103 | $ 911,632 | $ (576,590) | $ (362)
Balance (in shares) at Dec. 31, 2010 |  | 102,676 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net 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 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 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (33,748) | 0 | 0 | (33,748) |
Unrealized gain (loss) on marketable securities, net of tax | (5) | 0 | 0 | 0 | (5)
Issuance of common stock upon exercise of options, equity stock and employee stock purchase plan | 7,865 | 1 | 7,864 | 0 | 0
Issuance of common stock upon exercise of options, equity stock and stock units, and employee stock purchase plan (in shares) |  | 1,934 |  |  |
Stock-based compensation | 14,981 | 0 | 14,981 | 0 | 0
Equity component of 1.125% convertible senior notes due 2018 | 29,542 | 0 | 29,542 | 0 | 0
Balance at Dec. 31, 2013 | $ 340,229 | $ 113 | $ 1,128,148 | $ (787,727) | $ (305)
Balance (in shares) at Dec. 31, 2013 |  | 113,459 |  |  |

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