Income Taxes - Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Deferred tax assets:
Federal net operating loss carryforwards	$ 13,406	$ 20,430
Compensation related	20,038	18,654
Accrued retirement benefits	7,105	8,780
Inventory reserves	5,241	4,611
Product liability and workers compensation reserves	6,351	5,052
Warranty reserves	5,122	4,490
Receivable related reserves	2,192	2,350
UNICAP	2,425	2,138
State net operating loss carryforwards	509	580
Interest rate swap	964	1,114
Other	10,501	10,802
Gross deferred tax assets	73,854	79,001
Valuation allowance	(740)	0
Deferred tax assets	73,114	79,001
Deferred tax liabilities:
Intangible assets	(68,568)	(69,998)
Foreign tax earnings repatriation	(2,005)	(1,546)
LIFO reserves	(72)	(161)
Depreciation	(1,794)	(2,547)
Other	(2,148)	(3,504)
Deferred tax liabilities	(74,587)	(77,756)
Net deferred tax assets (liabilities)	(1,473)	1,245
Current deferred asset	43,365	39,090
Long-term deferred liability	$ (44,838)	$ (37,845)