Property And Equipment, Net (Components Of Property And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property and equipment	$ 396,086	$ 326,121
Accumulated depreciation	(172,134)	(145,271)
Property and equipment, net	223,952	180,850
Leasehold and tenant improvements
Property, Plant and Equipment [Line Items]
Property and equipment	97,776	75,058
Furniture, fixtures and displays
Property, Plant and Equipment [Line Items]
Property and equipment	68,045	59,849
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment	45,903	42,533
Software
Property, Plant and Equipment [Line Items]
Property and equipment	51,984	40,836
Office equipment
Property, Plant and Equipment [Line Items]
Property and equipment	39,551	35,752
Plant equipment
Property, Plant and Equipment [Line Items]
Property and equipment	45,509	30,214
Land
Property, Plant and Equipment [Line Items]
Property and equipment	17,628	17,628
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment	28,471	23,005
Other
Property, Plant and Equipment [Line Items]
Property and equipment	$ 1,219	$ 1,246