Revenue from Lessor Arrangements and Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Revenues [Abstract]
Lease component, lease term (or less)	30 days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 187.0	$ 198.6
Property, Plant and Equipment [Line Items]
Revenue, remaining performance obligation	$ 6.7
Revenue, remaining performance obligation, expected timing of satisfaction	one to five years
Trade accounts receivable, lease revenue
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 4.6	$ 4.7
Dispensers
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
VERIFI equipment
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years