Segment Information (Geographic Segments Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 517,879	$ 487,181
Adjusted EBITDA	61,414	52,594
Operating Segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	524,282	493,216
Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	(6,403)	(6,035)
North American Residential
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	359,680	338,042
Adjusted EBITDA	50,398	44,937
North American Residential | Operating Segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	360,542	339,129
North American Residential | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	(862)	(1,087)
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	87,104	69,971
Adjusted EBITDA	9,930	7,738
Europe | Operating Segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	87,752	70,827
Europe | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	(648)	(856)
Architectural
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	66,671	71,827
Adjusted EBITDA	7,660	5,214
Architectural | Operating Segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	71,564	75,919
Architectural | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	(4,893)	(4,092)
Corporate & Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	4,424	7,341
Adjusted EBITDA	(6,574)	(5,295)
Corporate & Other | Operating Segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	4,424	7,341
Corporate & Other | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 0	$ 0