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FAIR VALUE - Schedule of Fair Value of Debt (Details) - Senior Notes - USD ($) $ in Thousands	Mar. 27, 2021	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
5.5% Senior Notes due 2026
Debt Instrument [Line Items]
Stated interest rate	5.50%	5.50%		5.50%
5.5% Senior Notes due 2026 | Book Value
Debt Instrument [Line Items]
Debt instrument value	$ 0	$ 500,000
5.5% Senior Notes due 2026 | Estimated Fair Value
Debt Instrument [Line Items]
Debt instrument value	$ 0	$ 523,100
4.25% Senior Notes due 2028
Debt Instrument [Line Items]
Stated interest rate	4.25%	4.25%	4.25%
4.25% Senior Notes due 2028 | Book Value
Debt Instrument [Line Items]
Debt instrument value	$ 500,000	$ 500,000
4.25% Senior Notes due 2028 | Estimated Fair Value
Debt Instrument [Line Items]
Debt instrument value	$ 513,750	$ 523,750
3.75% Senior Notes due 2029
Debt Instrument [Line Items]
Stated interest rate	3.75%	3.75%
3.75% Senior Notes due 2029 | Book Value
Debt Instrument [Line Items]
Debt instrument value	$ 500,000	$ 0
3.75% Senior Notes due 2029 | Estimated Fair Value
Debt Instrument [Line Items]
Debt instrument value	$ 501,250	$ 0
4.0% Senior Notes due 2031
Debt Instrument [Line Items]
Stated interest rate	4.00%	4.00%
4.0% Senior Notes due 2031 | Book Value
Debt Instrument [Line Items]
Debt instrument value	$ 500,000	$ 0
4.0% Senior Notes due 2031 | Estimated Fair Value
Debt Instrument [Line Items]
Debt instrument value	$ 504,350	$ 0

X

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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