Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 27, 2013	Sep. 28, 2012	Sep. 27, 2013	Sep. 28, 2012
Income Taxes [Line Items]
Effective tax rate on income from operations	42.60%	21.50%	48.50%	15.70%
Income tax refund received			$ 12,607,000	$ 222,000
CANADA
Income Taxes [Line Items]
Statutory tax rate	26.00%		26.00%
Internal Revenue Service (IRS)
Income Taxes [Line Items]
Income tax refund received	12,500,000
Income tax receivable	$ 300,000		$ 300,000