Goodwill, Net (Details) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 153,984,000	$ 151,655,000	$ 151,655,000
Accumulated impairment, beginning balance	(49,405,000)	(49,405,000)	(49,405,000)
Goodwill, net	104,579,000	102,250,000	102,250,000
Additions	2,329,000
Impairment charge	0	0	0
Westemeyer Industries, Inc. [Member]
Goodwill [Roll Forward]
Cost of acquisition	11,600,000
Plumbing and Refrigeration Segment [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	141,684,000	141,684,000	141,684,000
Accumulated impairment, beginning balance	(39,434,000)	(39,434,000)	(39,434,000)
Goodwill, net	102,250,000	102,250,000	102,250,000
Additions	0
OEM Segment [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	12,300,000	9,971,000	9,971,000
Accumulated impairment, beginning balance	(9,971,000)	(9,971,000)	(9,971,000)
Goodwill, net	2,329,000	0	0
Additions	$ 2,329,000