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Debt Instrument, Total Amount Authorized under Shelf Agreement

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States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

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Face (par) amount of debt instrument at time of issuance.

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Description of covenants that limit or prohibit certain actions or activities without the lender's prior consent within a specified period of time or until certain specified targets are achieved for example, reduction of the debt or an increase in net worth to a specified amount).

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Disclosure of accounting policy for derivatives used in hedging relationships, which may include how gains or losses are recognized and presented in the financial statements, and amortization policies for deferred amounts.

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Disclosure that addresses (a) how and why an entity uses derivative instruments, (b) how derivative instruments and related hedged items are accounted for, and (c) how derivative instruments affect an entity's financial position, results of operations, and cash flows.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

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The effective interest rate at the end of the reporting period.

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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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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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Indebtedness (Details) - USD ($) $ in Thousands	12 Months Ended
Indebtedness (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 28, 2019	Dec. 29, 2018	Jan. 29, 2015
Debt Instrument [Line Items]
Repayment of long-term debt	$ 2,500	$ 0	$ 75,000
Long-term Debt	$ 1,336,662	1,039,162
Debt Instrument, Covenant Compliance	As of December 31, 2020, we were in compliance with all debt covenants
General Discussion of Derivative Instruments and Hedging Activities	We are exposed to market risk from fluctuations in the variable interest rates on outstanding indebtedness under our Credit Agreement. In order to manage this exposure, we have entered into an interest rate swap agreement, with an initial notional amount of $600 million, to hedge the variability of cash flows associated with such interest obligations through May 2024. The interest rate swap has an effective start date of May 13, 2019, and is designated as a cash flow hedge, which effectively fixes the interest rate on the hedged indebtedness under our Credit Agreement at 3.06%
Derivative, Fair Value, Net	$ 37,000	$ 17,000
Derivatives, Methods of Accounting, Hedging Derivatives [Policy Text Block]	Our interest rate swap agreement is accounted for in accordance with ASC Topic 815, Derivatives and Hedging. Such agreement is designated as a cash flow hedge and considered to be highly effective under hedge accounting principles. Therefore, the swap agreement is recognized in our consolidated balance sheets as either an asset or liability, measured at fair value. Changes in the fair value of the swap agreement are initially recorded in accumulated other comprehensive loss, net and then subsequently recognized in our consolidated statements of operations in the periods in which earnings are affected by the hedged item. All cash flows associated with the swap agreement are classified as operating activities in our consolidated statements of cash flows
Line of Credit Facility, Description	In May 2019 and November 2019, we entered into amendments to our Third Amended and Restated Credit Agreement (as amended, the "Credit Agreement") with a syndicate of lenders. The Credit Agreement provides for an unsecured revolving credit facility expiring in May 2024, and includes: (a) a revolving credit loan facility of up to $1.00 billion at any time outstanding, and (b) a letter of credit facility of up to $100 million at any time outstanding (which is a sub-facility of the $1.00 billion revolving credit loan facility). The Credit Agreement also includes an accordion feature allowing an increase of the credit facility of up to an additional $200 million ($1.20 billion in the aggregate) at any time outstanding, subject to lender participation and the satisfaction of specified conditions. Borrowings outstanding under the Credit Agreement are due in May 2024, with prepayment permitted at any time. Proceeds may be used for working capital and general corporate purposes, including but not limited to certain business acquisitions and purchases under our share repurchase programs. The Credit Agreement provides certain restrictions on our ability to borrow, incur liens, sell assets and pay dividends, and contains certain leverage and interest coverage covenants
Line of Credit Facility, Interest Rate Description	Generally, interest on revolving credit loans is payable at a variable rate based on LIBOR, prime, or the U.S. federal funds rate, plus a spread that varies depending on leverage ratios maintained. Unused commitment, letter of credit, and other fees are also payable under the Credit Agreement
Line of Credit Facility, Interest Rate at Period End	0.95%	2.54%
Letters of Credit Outstanding, Amount	$ 34,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 366,000
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 500,000
Debt Instrument, Restrictive Covenants	The Master Note Purchase Agreement contains certain leverage and interest coverage ratio covenants and provides certain restrictions on our ability to borrow, incur liens, sell assets, and other customary terms
Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	May 05, 2024
Long-term Debt	$ 600,000	$ 600,000
2014 Shelf Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Aggregate Principle Amount	1,500,000
Debt Instrument, Amount Uncommitted and Available for Sale	$ 1,000,000
Other [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Sep. 01, 2025
Long-term Debt	$ 11,662	14,162
Senior Notes - Series 2015-A due February 15, 2022
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 225,000
Debt Instrument, Interest Rate, Stated Percentage				3.18%
Debt Instrument, Frequency of Periodic Payment	payable semiannually
Debt Instrument, Date of First Required Payment	Aug. 15, 2015
Debt Instrument, Maturity Date	Feb. 15, 2022
Long-term Debt	$ 225,000	225,000
Senior Notes - Series 2015-B due February 14, 2025
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 200,000
Debt Instrument, Interest Rate, Stated Percentage				3.58%
Debt Instrument, Maturity Date	Feb. 14, 2025
Long-term Debt	$ 200,000	200,000
Senior Notes - Series 2015-C due February 15, 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 75,000
Debt Instrument, Maturity Date	Feb. 15, 2022
Repayment of long-term debt		75,000
Senior Notes - Series 2020-A due March 11, 2030
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300,000
Debt Instrument, Interest Rate, Stated Percentage	2.50%
Debt Instrument, Frequency of Periodic Payment	payable semiannually
Debt Instrument, Date of First Required Payment	Sep. 11, 2020
Debt Instrument, Maturity Date	Mar. 11, 2030
Debt Instrument, Restrictive Covenants	The Series 2020-A Notes are subject to the terms of the 2019 Shelf Agreement, which contains customary events of default and covenants related to limitations on indebtedness and transactions with affiliates and the maintenance of certain financial ratios.
Long-term Debt	$ 300,000	$ 0
2019 Shelf Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Amount Uncommitted and Available for Sale	$ 1,500,000