Long-Term Debt and Credit Arrangements (Capital Lease Obligations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014 M
Capital Lease Obligation - 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.04%
Term of Note Payable	84
Debt Instrument, Periodic Payment	$ 8
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Dec. 01, 2015
Capital Lease Obligation - 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.90%
Term of Note Payable	60
Debt Instrument, Periodic Payment	11
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Aug. 01, 2017
Capital Lease Obligation - 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.76%
Term of Note Payable	58
Debt Instrument, Periodic Payment	33
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 01, 2018
Capital Lease Obligation - 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.74%
Term of Note Payable	56
Debt Instrument, Periodic Payment	2
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 01, 2017
Capital Lease Obligation - 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.88%
Term of Note Payable	48
Debt Instrument, Periodic Payment	16
Debt Instrument, Frequency of Periodic Payment	Quarterly
Debt Instrument, Maturity Date	Apr. 01, 2017
Capital Lease Obligation - 6 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.65%
Term of Note Payable	48
Debt Instrument, Periodic Payment	13
Debt Instrument, Frequency of Periodic Payment	Quarterly
Debt Instrument, Maturity Date	Apr. 01, 2018
Capital Lease Obligation - 7 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.42%
Term of Note Payable	36
Debt Instrument, Periodic Payment	2
Debt Instrument, Frequency of Periodic Payment	Quarterly
Debt Instrument, Maturity Date	Apr. 01, 2017
Capital Lease Obligation - 8 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.10%
Term of Note Payable	60
Debt Instrument, Periodic Payment	3
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Nov. 01, 2018
Capital Lease Obligation - 9 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.69%
Term of Note Payable	84
Debt Instrument, Periodic Payment	21
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Mar. 25, 2021
Capital Lease Obligation - 10 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.59%
Term of Note Payable	60
Debt Instrument, Periodic Payment	6
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Feb. 01, 2018
Capital Lease Obligation - 11 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.70%
Term of Note Payable	60
Debt Instrument, Periodic Payment	3
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Apr. 01, 2018
Capital Lease Obligation - 12 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.78%
Term of Note Payable	60
Debt Instrument, Periodic Payment	1
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Jun. 01, 2018
Capital Lease Obligation - 13 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.24%
Term of Note Payable	72
Debt Instrument, Periodic Payment	28
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Jun. 01, 2020
Capital Lease Obligation - 14 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.82%
Term of Note Payable	51
Debt Instrument, Periodic Payment	43
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Sep. 01, 2018
Capital Lease Obligation - 15 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.22%
Term of Note Payable	84
Debt Instrument, Periodic Payment	11
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Aug. 01, 2021
Capital Lease Obligation - 16 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.69%
Term of Note Payable	84
Debt Instrument, Periodic Payment	5
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Jul. 07, 2021
Capital Lease Obligation - 17 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Term of Note Payable	84
Debt Instrument, Periodic Payment	22
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 01, 2021
Capital Lease Obligation - 18 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.28%
Term of Note Payable	84
Debt Instrument, Periodic Payment	33
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Oct. 01, 2021
Capital Lease Obligation - 19 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.37%
Term of Note Payable	60
Debt Instrument, Periodic Payment	1
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Apr. 24, 2019
Capital Lease Obligation - 20 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.07%
Term of Note Payable	48
Debt Instrument, Periodic Payment	38
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Jan. 01, 2019
Capital Lease Obligation - 21 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.14%
Term of Note Payable	84
Debt Instrument, Periodic Payment	$ 14
Debt Instrument, Frequency of Periodic Payment	Monthly
Debt Instrument, Maturity Date	Jan. 01, 2022