Operating Segments - Reconciliation of Total Reportable Segments' Net Income to Consolidated Income (Loss) from Continuing Operations Before Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from equity method investment	$ 2,271	$ 2,741
Segment operating income	44,240	37,126
Interest expense	(15,905)	(11,919)
Interest income	108	351
Income from continuing operations before taxes	28,443	25,558
Reportable Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment operating income	42,655	35,064
Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment operating income	$ (686)	$ (679)