Goodwill, Net (Details) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Goodwill [Roll Forward]
Goodwill	$ 153,984,000	$ 151,655,000
Accumulated impairment, beginning balance	(49,405,000)	(49,405,000)
Goodwill, net	94,357,000	104,579,000	102,250,000
Additions	310,000	2,329,000
Disposition	(10,532,000)
Goodwill	143,762,000	153,984,000
Accumulated impairment, ending balance	(49,405,000)	(49,405,000)
Westemeyer Industries, Inc. [Member]
Goodwill [Roll Forward]
Cost of acquisition		11,600,000
Howell [Member]
Goodwill [Roll Forward]
Cost of acquisition	55,300,000
Plumbing and Refrigeration Segment [Member]
Goodwill [Roll Forward]
Goodwill	141,684,000	141,684,000
Accumulated impairment, beginning balance	(39,434,000)	(39,434,000)
Goodwill, net	92,028,000	102,250,000	102,250,000
Additions	310,000	0
Disposition	(10,532,000)
Goodwill	131,462,000	141,684,000
Accumulated impairment, ending balance	(39,434,000)	(39,434,000)
OEM Segment [Member]
Goodwill [Roll Forward]
Goodwill	12,300,000	9,971,000
Accumulated impairment, beginning balance	(9,971,000)	(9,971,000)
Goodwill, net	2,329,000	2,329,000	0
Additions	0	2,329,000
Disposition	0
Goodwill	12,300,000	12,300,000
Accumulated impairment, ending balance	$ (9,971,000)	$ (9,971,000)