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SIGNIFICANT ACCOUNTING POLICIES (Intangible assets useful lives) (Details)	12 Months Ended
	Dec. 29, 2019
Customer contracts and customer relationships | Minimum
Disclosure of detailed information about intangible assets [line items]
Useful life	7 years
Customer contracts and customer relationships | Maximum
Disclosure of detailed information about intangible assets [line items]
Useful life	20 years
License agreements | Minimum
Disclosure of detailed information about intangible assets [line items]
Useful life	3 years
License agreements | Maximum
Disclosure of detailed information about intangible assets [line items]
Useful life	10 years
Computer software | Minimum
Disclosure of detailed information about intangible assets [line items]
Useful life	4 years
Computer software | Maximum
Disclosure of detailed information about intangible assets [line items]
Useful life	7 years
Trademarks
Disclosure of detailed information about intangible assets [line items]
Useful life	5 years
Non-compete agreements
Disclosure of detailed information about intangible assets [line items]
Useful life	2 years

X

- Definition

Useful Lives Or Amortisation Rates, Intangible Assets Other Than Goodwill, Period

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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