Nature of Operations and Summary of Significant Accounting Policies, Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	13 years
Acquired intangible assets, gross	$ 50,474,000	$ 50,474,000
Currency translation	1,307,000	896,000
Accumulated amortization	(25,686,000)	(22,317,000)
Net	26,095,000	29,053,000
Amortization expense of acquired intangible assets	3,369,000	2,983,000	2,616,000
Estimated Future Amortization Expense [Abstract]
2013	3,196,000
2014	2,815,000
2015	2,100,000
2016	1,729,000
2017	1,650,000
Thereafter	6,505,000
Goodwill [Roll Forward]
Gross balance at beginning of period	191,468,000	183,497,000
Accumulated Impairment Losses at beginning of period	(85,509,000)	(85,509,000)
Net balance at beginning of period	105,959,000	97,988,000
Increase due to acquisitions	0	9,641,000
Currency translation adjustment	1,988,000	(1,670,000)
Total adjustments	1,988,000	7,971,000
Gross balance at end of period	193,456,000	191,468,000	183,497,000
Accumulated Impairment Losses at end of period	(85,509,000)	(85,509,000)	(85,509,000)
Net balance at end of period	107,947,000	105,959,000	97,988,000
Goodwill Reporting By Reporting Unit [Abstract]
Goodwill	107,947,000	105,959,000	97,988,000
Stock-Preparation [Member]
Goodwill [Roll Forward]
Net balance at end of period	17,583,000	17,488,000
Goodwill Reporting By Reporting Unit [Abstract]
Goodwill	17,583,000	17,488,000
Doctoring, Cleaning and Filtration [Member]
Goodwill [Roll Forward]
Net balance at end of period	33,081,000	32,032,000
Goodwill Reporting By Reporting Unit [Abstract]
Goodwill	33,081,000	32,032,000
Fluid-Handling [Member]
Goodwill [Roll Forward]
Net balance at end of period	57,283,000	56,439,000
Goodwill Reporting By Reporting Unit [Abstract]
Goodwill	57,283,000	56,439,000
Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	1 year
Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	20 years
Customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	19,054,000	19,054,000
Currency translation	1,433,000	1,194,000
Accumulated amortization	(9,825,000)	(8,247,000)
Net	10,662,000	12,001,000
Intellectual property [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	15,690,000	15,690,000
Currency translation	(60,000)	(162,000)
Accumulated amortization	(10,838,000)	(9,483,000)
Net	4,792,000	6,045,000
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	8,879,000	8,879,000
Currency translation	(30,000)	(63,000)
Accumulated amortization	(125,000)	(53,000)
Net	8,724,000	8,763,000
Non-compete agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	3,362,000	3,362,000
Currency translation	(9,000)	(21,000)
Accumulated amortization	(3,159,000)	(3,259,000)
Net	194,000	82,000
Distribution network [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	2,400,000	2,400,000
Currency translation	0	0
Accumulated amortization	(1,094,000)	(950,000)
Net	1,306,000	1,450,000
Licensing agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	400,000	400,000
Currency translation	0	0
Accumulated amortization	(153,000)	(133,000)
Net	247,000	267,000
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	689,000	689,000
Currency translation	(27,000)	(52,000)
Accumulated amortization	(492,000)	(192,000)
Net	170,000	445,000
Johnson Tradename [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite life intangible assets	$ 8,100,000