Reconciliation of Segment Assets to Consolidated Total Assets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Apr. 01, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 3,693,727	$ 3,739,497	$ 3,649,886
Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,211,149		2,853,596
Corporate assets
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	474,742		788,264
Assets Held-for-sale
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 7,836		$ 8,026