Defined Benefit Pension Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Estimated net loss that will be amortized from accumulated other comprehensive loss	$ 17,012
Estimated prior service credit that will be amortized from accumulated other comprehensive loss	9
Target asset allocation period		5 years
End of year	809,217	$ 787,998	$ 739,579
Contribution already made in 2016	40,000
Expected benefit payments, 2016	61,241
Expected benefit payments, 2017	61,652
Expected benefit payments, 2018	63,861
Expected benefit payments, 2019	66,633
Expected benefit payments, 2020	68,241
Expected benefit payments, Thereafter	357,746
Nonretirement postemployment benefit plans liability	49,646	51,598
Nonretirment postemployement benefit plans expense	499	1,284
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
End of year	167,069	192,935
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
End of year	260,323	248,690
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
End of year	$ 381,825	$ 346,373