Commitments, contingencies and other (Narrative) (Details) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended				0 Months Ended	3 Months Ended		1 Months Ended	0 Months Ended
	Jun. 29, 2013 Cost of Sales [Member] USD ($)		Jun. 30, 2012 Cost of Sales [Member] USD ($)		Jun. 29, 2013 Cost of Sales [Member] USD ($)		Jun. 30, 2012 Cost of Sales [Member] USD ($)		Jan. 30, 2013 BELGIUM Foreign Tax Authority [Member] EUR (€)	Jun. 30, 2012 BELGIUM Foreign Tax Authority [Member] EUR (€)	Dec. 28, 2012 BELGIUM Foreign Tax Authority [Member] EUR (€)	Jan. 31, 2012 BELGIUM Foreign Tax Authority [Member] Two Thousand and Eight [Member] EUR (€)	Dec. 28, 2012 BELGIUM Foreign Tax Authority [Member] Two Thousand and Five [Member] EUR (€)	Dec. 28, 2012 BELGIUM Foreign Tax Authority [Member] Two Thousand and Nine [Member] EUR (€)
Commitments And Contingencies [Line Items]
Assessment received from Belgian tax authority (in euros)												€ 23,789	€ 46,135	€ 35,567
Interest on assessment (in euros)										2,912
Refund of interest deposit									2,912		23,789
Interest Tax Examination, Refund, Interest Income									1,583
Pre-tax business restructuring charges	$ 11,324	[1]	$ 6,636	[2]	$ 14,330	[1]	$ 6,636	[2]

[1] The restructuring costs for 2013 primarily relate to the Company’s actions taken to lower its cost structure and improve efficiencies of manufacturing operations and administrative functions, as well as actions related to the Company's acquisition of Pergo, Spano and Marazzi.

[2] The charges for 2012 primarily relate to the Company's actions taken to to lower its cost structure and improve efficiencies of manufacturing and distribution operations as the Company adjusted to changing economic conditions.