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Goodwill and Intangible Assets - Finite and Indefinite Lived Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Less: Accumulated Amortization	$ 10.3	$ 5.0
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible Assets, Gross Carrying Amount	60.2	21.5
Intangible Assets, Net	49.9	16.5
Trademarks
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 4.8	4.8
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	10 years
Gross Carrying amount	$ 40.1	15.2
Less: Accumulated Amortization	8.3	4.5
Net	$ 31.8	10.7
Candidate Database
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	4 years
Gross Carrying amount	$ 1.5	1.5
Less: Accumulated Amortization	0.9	0.5
Net	$ 0.6	1.0
Trade Names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	15 years
Gross Carrying amount	$ 12.1	0.0
Less: Accumulated Amortization	0.8	0.0
Net	$ 11.3	0.0
Noncompete Agreements
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	5 years
Gross Carrying amount	$ 1.7	0.0
Less: Accumulated Amortization	0.3	0.0
Net	$ 1.4	$ 0.0

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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