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Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Debt Instrument [Line Items]
Long-term debt	$ 581,116	$ 276,677
Less: current portion of long-term debt	(1,736)	0
Long-term debt, net	579,380	276,677
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Long-term debt	409,112	179,569
Deferred financing fees	6,200	3,100
Mortgage Note Payable | Secured Debt
Debt Instrument [Line Items]
Long-term debt	0	97,108
Deferred financing fees	0	800
Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Long-term debt	172,004	0
Deferred financing fees	$ 7,100	$ 0

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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