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Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2011 | Jun. 30, 2010
Denominator: |  |  |  |
Weighted-average common shares outstanding (in shares) | 109,992 | 113,321 | 108,809 | 113,227
Basic net income (loss) per share (in dollars per share) | $ (0.10) | $ (0.11) | $ (0.14) | $ 1.22
Denominator: |  |  |  |
Number of shares used in basic computation (in shares) | 109,992 | 113,321 | 108,809 | 113,227
Number of shares used in diluted computation (in shares) | 109,992 | 113,321 | 108,809 | 117,434
Diluted net income (loss) per share (in dollars per share) | $ (0.10) | $ (0.11) | $ (0.14) | $ 1.18
CRCS |  |  |  |
Numerator: |  |  |  |
Allocation of undistributed earnings | $ (461) | $ (528) | $ (652) | $ 5,271
Denominator: |  |  |  |
Weighted-average common shares outstanding (in shares) | 4,788 | 4,788 | 4,788 | 4,312
Basic net income (loss) per share (in dollars per share) | $ (0.10) | $ (0.11) | $ (0.14) | $ 1.22
Numerator: |  |  |  |
Allocation of undistributed earnings for basic computation | (461) | (528) | (652) | 5,271
Reallocation of undistributed earnings |  |  |  | (189)
Allocation of undistributed earnings for diluted computation | (461) | (528) | (652) | 5,082
Denominator: |  |  |  |
Number of shares used in basic computation (in shares) | 4,788 | 4,788 | 4,788 | 4,312
Number of shares used in diluted computation (in shares) | 4,788 | 4,788 | 4,788 | 4,312
Diluted net income (loss) per share (in dollars per share) | $ (0.10) | $ (0.11) | $ (0.14) | $ 1.18
Other CS |  |  |  |
Numerator: |  |  |  |
Allocation of undistributed earnings | (10,124) | (11,962) | (14,163) | 133,138
Denominator: |  |  |  |
Weighted-average common shares outstanding (in shares) | 105,204 | 108,533 | 104,021 | 108,915
Basic net income (loss) per share (in dollars per share) | $ (0.10) | $ (0.11) | $ (0.14) | $ 1.22
Numerator: |  |  |  |
Allocation of undistributed earnings for basic computation | (10,124) | (11,962) | (14,163) | 133,138
Reallocation of undistributed earnings |  |  |  | 189
Allocation of undistributed earnings for diluted computation | $ (10,124) | $ (11,962) | $ (14,163) | $ 133,327
Denominator: |  |  |  |
Number of shares used in basic computation (in shares) | 105,204 | 108,533 | 104,021 | 108,915
Dilutive potential shares from stock options, ESPP, Convertible notes and nonvested equity stock and stock units (in shares) |  |  |  | 4,207
Number of shares used in diluted computation (in shares) | 105,204 | 108,533 | 104,021 | 113,122
Diluted net income (loss) per share (in dollars per share) | $ (0.10) | $ (0.11) | $ (0.14) | $ 1.18

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