Operating Segments and Geographic Information - 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								12 Months Ended
	Dec. 31, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from equity method investment									$ 3,955	$ 8,922	$ 9,704
Total operating income	43,271	58,011	12,326	49,511	49,174	53,935	53,913	44,240	163,119	201,262	108,497
Interest expense									(82,156)	(73,095)	(52,038)
Interest income									583	494	1,033
Loss on debt extinguishment					(1,600)					(1,612)	(52,450)
Income tax benefit (expense)									(7,114)	(22,315)	38,194
Income from continuing operations	15,414	33,847	15	25,156	23,929	29,068	29,492	22,245	74,432	104,734	43,236
Income (loss) from discontinued operations, net of tax	579				(1,421)				579	(1,421)	16,774
Gain (loss) from disposal of discontinued operations, net of tax				(562)					(562)		134,480
Net income	15,993	33,847	15	24,594	22,508	29,068	29,492	22,245	74,449	103,313	194,490
Reportable Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating income									163,046	196,132	100,932
Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating income									$ (3,882)	$ (3,792)	$ (2,139)