Benefit Plan	12 Months Ended
Dec. 31, 2011
Benefit Plan [Abstract]
Benefit Plan	10. Benefit Plan The Company currently has a 401(k) plan in which substantially all U.S. employees are eligible to participate. The Company match was eliminated effective August 1, 2009, but was reinstated effective May 1, 2011 to match participant contributions equal to 100% of the first 3% of a participant’s eligible compensation. The Company made total matching contributions of $1.6 million and $3.4 million for the years ended December 31, 2011 and 2009, respectively. The Company made no matching contributions in the year ended December 31, 2010.

The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.

No definition available.

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