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Earnings (Loss) Per Share (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Denominator:        
Weighted-average common shares outstanding, Basic (in shares) 110,826,000 112,334,000 110,580,000 109,997,000
Net loss per share, Basic (in dollars per share) $ (0.52) $ 0.00 $ (1.07) $ (0.13)
Denominator:        
Weighted-average common shares outstanding, Basic (in shares) 110,826,000 112,334,000 110,580,000 109,997,000
Weighted-average common shares outstanding, Diluted (in shares) 110,826,000 115,552,000 110,580,000 109,997,000
Net loss per share, Diluted (in dollars per share) $ (0.52) $ 0.00 $ (1.07) $ (0.13)
CRCS
        
Numerator:        
Allocation of undistributed earnings, Basic $ 0 [1] $ 11,000 [1] $ 0 [1] $ (526,000) [1]
Denominator:        
Weighted-average common shares outstanding, Basic (in shares) 0 [1] 4,788,000 [1] 0 [1] 4,788,000 [1]
Net loss per share, Basic (in dollars per share) $ 0.00 [1] $ 0.00 [1] $ 0.00 [1] $ (0.11) [1]
Numerator:        
Allocation of undistributed earnings, Basic 0 [1] 11,000 [1] 0 [1] (526,000) [1]
Relocation of undistributed earnings 0 [1] 0 [1]    
Allocation of undistributed earnings, Diluted 0 [1] 11,000 [1] 0 [1] (526,000) [1]
Denominator:        
Weighted-average common shares outstanding, Basic (in shares) 0 [1] 4,788,000 [1] 0 [1] 4,788,000 [1]
Dilutive potential shares from stock options, ESPP, convertible notes, CRI retention bonuses and nonvested equity stock and stock units (in shares) 0.00 [1] 0.00 [1]    
Weighted-average common shares outstanding, Diluted (in shares) 0 [1] 4,788,000 [1] 0 [1] 4,788,000 [1]
Net loss per share, Diluted (in dollars per share) $ 0.00 [1] $ 0.00 [1] $ 0.00 [1] $ (0.11) [1]
Common Stock other than CRCS
        
Numerator:        
Allocation of undistributed earnings, Basic (58,098,000) [2] 467,000 [2] (118,204,000) [2] (13,811,000) [2]
Denominator:        
Weighted-average common shares outstanding, Basic (in shares) 110,826,000 [2] 109,784,000 [2] 110,580,000 [2] 105,963,000 [2]
Net loss per share, Basic (in dollars per share) $ (0.52) [2] $ 0.00 [2] $ (1.07) [2] $ (0.13) [2]
Numerator:        
Allocation of undistributed earnings, Basic (58,098,000) [2] 467,000 [2] (118,204,000) [2] (13,811,000) [2]
Relocation of undistributed earnings 0 [2] 0 [2]    
Allocation of undistributed earnings, Diluted $ (58,098,000) [2] $ 467,000 [2] $ (118,204,000) [2] $ (13,811,000) [2]
Denominator:        
Weighted-average common shares outstanding, Basic (in shares) 110,826,000 [2] 109,784,000 [2] 110,580,000 [2] 105,963,000 [2]
Dilutive potential shares from stock options, ESPP, convertible notes, CRI retention bonuses and nonvested equity stock and stock units (in shares) 0.00 [2] 3,218,000 [2]    
Weighted-average common shares outstanding, Diluted (in shares) 110,826,000 [2] 113,002,000 [2] 110,580,000 [2] 105,963,000 [2]
Net loss per share, Diluted (in dollars per share) $ (0.52) [2] $ 0.00 [2] $ (1.07) [2] $ (0.13) [2]
[1] * CRCS — Contingently Redeemable Common Stock
[2] ** Other CS — Common Stock other than CRCS