Business Segment and Geographic Information (Details 2) (USD $) In Thousands	Oct. 02, 2011	Jan. 02, 2011
Asset Reconciliation of Segments
Assets	$ 2,990,590	$ 2,412,373
Reportable segment assets [Member]
Asset Reconciliation of Segments
Assets	2,806,419	2,252,016
Cash [Member]
Asset Reconciliation of Segments
Assets	43,956	39,664
Deferred income tax [Member]
Asset Reconciliation of Segments
Assets	45,908	30,051
Restricted cash and investments [Member]
Asset Reconciliation of Segments
Assets	$ 94,307	$ 90,642