Restructuring Charges	12 Months Ended
Restructuring Charges	Dec. 31, 2012
Restructuring Charges [Abstract]
Restructuring Charges	Restructuring Charges 2010 Restructuring Plan In connection with the sale of the Authentication Services business and the migration of its corporate functions from California to Virginia, the Company initiated a restructuring plan in 2010, including workforce reductions, abandonment of excess facilities and other exit costs (the “2010 Restructuring Plan”). Under the 2010 Restructuring Plan, the Company incurred pre-tax cash severance charges of $21.3 million, stock-based compensation expenses of $16.2 million upon acceleration of stock-based awards, and excess facility exit costs of $8.0 million, inclusive of amounts reported in discontinued operations. As of December 31, 2012, the 2010 Restructuring Plan was complete and all expenses incurred under the plan have been paid or settled.

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

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