Acquisition (Narrative) (Detail) - USD ($) $ in Thousands		3 Months Ended
	Aug. 04, 2015	Sep. 27, 2015	Jun. 26, 2016	Dec. 31, 2015	Jun. 28, 2015
Business Acquisition [Line Items]
Goodwill			$ 54,542	$ 54,182	$ 26,105
Deeley Imports
Business Acquisition [Line Items]
Total consideration in business combination	$ 59,900
Goodwill	28,567
Goodwill expected to be tax deductible	28,600
Acquired finite-lived intangible assets	20,842
Acquisition, integration related costs		$ 3,300
Deeley Imports | Distribution Rights
Business Acquisition [Line Items]
Acquired finite-lived intangible assets	$ 13,300
Acquired finite-lived intangible assets, weighted average useful life (in years)	2 years
Deeley Imports | Customer Relationships
Business Acquisition [Line Items]
Acquired finite-lived intangible assets	$ 7,500
Acquired finite-lived intangible assets, weighted average useful life (in years)	20 years