Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 02, 2016	Jan. 03, 2015
Deferred tax assets:
Federal net operating loss carryforwards	$ 13,416	$ 7,020
Compensation related	19,160	17,092
Accrued retirement benefits	43,930	8,211
Inventory reserves	8,183	6,503
Product liability and workers compensation reserves	5,811	7,810
Warranty reserves	9,252	9,191
Receivable related reserves	3,069	3,277
UNICAP	3,520	3,727
State net operating loss carryforwards	1,483	2,731
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	17,549	0
Interest rate swap	0	157
Other	32,347	18,154
Gross deferred tax assets	157,720	83,873
Valuation allowance	(20,395)	0
Deferred tax assets	137,325	83,873
Deferred tax liabilities:
Intangible assets	(182,471)	(111,501)
Foreign tax earnings repatriation	(1,363)	(3,029)
LIFO reserves	(93)	(90)
Depreciation	(551)	(1,366)
Deferred Tax Liabilities, Derivatives	(6)	0
Other	(2,690)	(2,745)
Deferred tax liabilities	(187,174)	(118,731)
Net deferred tax assets (liabilities)	(49,849)	(34,858)
Current deferred asset	51,723	51,017
Long-term deferred liability	11,438	2,925
Deferred Tax Liabilities, Net, Noncurrent	$ (113,010)	$ (88,800)