CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS SUPPLEMENTAL DISCLOSURE OF NON-CASH ITEMS (Parenthetical) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS NON-CASH SUPPLEMENTAL DATA
Capital lease for acquisition of promotional vehicles	$ 0.7	$ 1.5
Accounts payable for property and equipment	1.5	0.3
Accrued liabilities for property and equipment	0.1	12.1
Accounts payable for other intangible assets	1.8	0.0
Accrued liabilities for other intangible assets	$ 9.5	$ 6.2