Stockholders' Equity (Details1) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Securities to be Issued Upon Exercise of Outstanding Options & Vesting of RSUs	17,182
Weighted-Average Exercise Price of Outstanding Options	$ 9.29
Number of Securities Remaining Available for Issuance under Equity Compensation Plans (Excluding Securities Reflected in Column	8,206
Equity compensation plans approved by security holders [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Securities to be Issued Upon Exercise of Outstanding Options & Vesting of RSUs	10,051
Weighted-Average Exercise Price of Outstanding Options	$ 8.98
Number of Securities Remaining Available for Issuance under Equity Compensation Plans (Excluding Securities Reflected in Column	7,600
Equity compensation plans not approved by security holders [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Securities to be Issued Upon Exercise of Outstanding Options & Vesting of RSUs	7,131
Weighted-Average Exercise Price of Outstanding Options	$ 9.73
Number of Securities Remaining Available for Issuance under Equity Compensation Plans (Excluding Securities Reflected in Column	606