Reclassifications out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense										$ (112,784)	$ (115,160)	$ (121,843)
Other expense, net										472	1,524	2,027
Income before income taxes										(145,080)	(84,127)	(55,614)
(Benefit from) provision for income taxes		$ (56,560)								(18,237)	16,634	22,835
Net income		$ (62,969)	$ (44,719)	$ (45,173)	$ (10,653)	$ (13,300)	$ (34,658)	$ (30,494)	$ 10,753	(163,317)	(67,493)	(32,779)
Loss on Qualifying Hedges | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	[1]									(15,946)	(24,366)	(24,741)
(Benefit from) provision for income taxes	[1]									6,219	9,503	9,649
Net income	[1]									(9,727)	(14,863)	(15,092)
Loss on Qualifying Hedges | Interest Rate Contract | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest expense	[1]									(15,946)	(24,366)	(24,741)
Loss on Foreign Currency Translation | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Other expense, net	[1]									(787)	0	0
Income before income taxes	[1]									(787)	0	0
(Benefit from) provision for income taxes	[1]									0	0	0
Net income	[1]									$ (787)	$ 0	$ 0

[1] Amounts in parentheses indicate debits to profit / loss