Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Dec. 27, 2014	Dec. 28, 2013
Operating Loss Carryforwards [Line Items]
Valuation allowance, change in deferred tax asset			$ 40,600
Net operating loss carryforwards	$ 128,232	$ 135,930
Alternative minimum tax credit carryforwards	7,450	7,706
Valuation allowance	163,225	164,121
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense [Abstract]
Unrecognized tax benefits that would impact effective tax rate	2,200
Unrecognized tax benefits, interest on income taxes expense	300
Unrecognized tax benefits, interest on income taxes accrued	2,800
Income Taxes Paid, Net [Abstract]
Income taxes receivable	300	1,100
Income taxes paid	700	$ 1,600	$ 300
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	330,700
Federal and State Net Operating Loss Carry Forwards [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance	144,400
State Net Operating Loss [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ 18,800