Restructuring (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
	Sep. 25, 2011	Sep. 25, 2011
Games Reorganization (Thousands of Dollars) [Abstract]
Total cost incurred related to Games Reorganization	$ 1,811	$ 14,950
Costs incurred related to Games Reorganization allocated to product development expense	641	7,127
Costs incurred related to Games Reorganization allocated to selling, distribution and administration expense	1,170	7,823
Total estimated costs expected related to Games Reorganization	$ 20,100	$ 20,100