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Cash and Investments - Narrative (Details)	Apr. 02, 2021 USD ($) investment	Jan. 01, 2021 USD ($) investment	Apr. 03, 2020 USD ($)
Investments, Debt and Equity Securities [Abstract]
Restricted cash short-term investments	$ 48,200,000
Interest receivable	$ 3,600,000	$ 4,500,000
Number of investments in an unrealized loss position | investment	53	14
Allowance for credit losses	$ 0		$ 0

X

- Definition

Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
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-Subparagraph (a)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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X

- Definition

Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
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X

- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of cash equivalents restricted as to withdrawal or usage, classified as current. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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