Income Taxes (Details) - USD ($)	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Dec. 28, 2014
Income Taxes [Line Items]
Effective tax rate	(82.50%)	75.20%
Net deferred tax assets	$ 11,300,000		$ 12,800,000
Income tax payable	500,000
Current income tax receivable			2,400,000
Estimated tax payments	5,400,000
Current income tax expense	8,300,000
Current deferred tax liability	2,300,000
Interest and penalties benefit	100,000	$ 0
Accrued interest and penalties related to unrecognized tax benefits	2,400,000		4,300,000
Minimum
Income Taxes [Line Items]
Expected decrease of gross unrecognized tax benefits, minimum	4,400,000.0
Maximum
Income Taxes [Line Items]
Expected decrease of gross unrecognized tax benefits, minimum	4,600,000.0
Other Liabilities
Income Taxes [Line Items]
Accrued interest and penalties related to unrecognized tax benefits	$ 15,900,000		16,100,000
Domestic Tax Authority
Income Taxes [Line Items]
Valuation allowance			108,300,000
Deferred tax assets			$ 96,100,000