Segment Reporting (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Summary of long-lived assets by geography
Total long-lived assets	$ 244,439	$ 262,517	$ 285,115
Americas:
United States	214,711	230,884	254,113
Total Americas	214,896	230,919	254,147
Other Americas [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	185	35	34
Europe, Middle East and Africa [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	5,410	4,813	6,341
Japan [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	1,649	3,960	4,532
Asia [Member]
Summary of long-lived assets by geography
Long-Lived Assets in Individual Foreign Countries	$ 22,484	$ 22,825	$ 20,095