Commitments, Contingencies, Guarantees and Indemnities (Details) (USD $)	Dec. 31, 2012 sqft
Office space | Novato, California
Commitments on rental lease
Area of office space (in square feet)	20,534
Remaining lease commitment	$ 3,200,000
Office space | Shanghai, China
Commitments on rental lease
Remaining lease commitment	64,800
Office space | London, United Kingdom
Commitments on rental lease
Remaining lease commitment	219,000
Office space | Blagnac, France
Commitments on rental lease
Remaining lease commitment	17,000
Office space | Dublin, Ireland
Commitments on rental lease
Remaining lease commitment	200,000
Office and warehouse space | San Diego, California
Commitments on rental lease
Remaining lease commitment	100,000
Warehouse lease | Shanghai, China
Commitments on rental lease
Remaining lease commitment	$ 28,000