Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Operating Leases, Rent Expense, Net [Abstract]
Rent expense	$ 26,666us-gaap_OperatingLeasesRentExpenseNet	$ 25,450us-gaap_OperatingLeasesRentExpenseNet	$ 23,646us-gaap_OperatingLeasesRentExpenseNet
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating leases, future minimum payments due in 2015	25,140
Operating leases, committed sub-lease income due in 2015	(1,256)
Operating leases, future minimum payments due, net in 2015	23,884
Operating leases, future minimum payments, due in 2016	19,165
Operating leases, committed sub-lease income due in 2016	(750)
Operating leases, future minimum payments due, net in 2016	18,415
Operating leases, future minimum payments, due in 2017	11,468
Operating leases, committed sub-lease income due in 2017	(84)
Operating leases, future minimum payments due, net in 2017	11,384
Operating leases, future minimum payments, due in 2018	7,603
Operating leases, committed sub-lease income due in 2018	0
Operating leases, future minimum payments due, net in 2018	7,603
Operating leases, future minimum payments, due in 2019	5,183
Operating leases, committed sub-lease income due in 2019	0
Operating leases, future minimum payments due, net in 2019	5,183
Operating leases, future minimum payments, due thereafter	2,503
Operating leases, committed sub-lease income due thereafter	0
Operating leases, future minimum payments due, net thereafter	2,503
Operating leases, future minimum payments due	71,062
Operating leases, committed sub-lease income due	(2,090)
Operating leases, future minimum payments due, net	$ 68,972

Total Net Operating Leases Future Minimum Payments

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Net Operating Leases Future Minimum Payments Due, Next Twelve Months

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Net Operating Leases Future Minimum Payments Due after the fifth fiscal year following the current fiscal year

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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