Restructuring and Related Charges (Details) - Restructuring and related expenses (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	$ 16,244	$ 262	$ 17,421	$ 522
Property, Plant and Equipment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	11,793		11,793
Operational Inefficiencies [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	1,664		2,254
System and Website Write Down [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	1,578		1,810
Allowances for Floor Samples [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	495		495
Lease Obligations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	354		354
Severance And Other Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	254	262	254	522
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	$ 106		$ 461