Acquisition - FRC Agreements (Details) $ in Millions		12 Months Ended
	Oct. 02, 2019 USD ($) location item state	Dec. 31, 2019 USD ($)
Minimum
FRC Agreements
Undiscounted range of outcomes per the Monte Carlo model		$ 0.0
Maximum
FRC Agreements
Undiscounted range of outcomes per the Monte Carlo model		$ 69.2
FRC Acquisition
FRC Agreements
Number of locations | location	47
Number of states | state	8
Number of concept | item	10
Gross consideration payable in cash	$ 288.1
Amount owed by the acquiree	10.0
Amount in escrow account	$ 13.0
Period of amount deferred	4 years
Deferred consideration	$ 45.0
Acquisition date fair value	12.8
Future compensation expense	$ 7.3
Number of years for providing finance to achieve the targets	5 years
North Italia Acquisition
FRC Agreements
Number of locations | location	21
Number of states | state	10
Amount in escrow account	$ 12.0
Period of amount deferred	2 years
Remeasured value of the equity interest	$ 122.0
Gain or loss on revaluation of equity interest	$ 52.7