Supplemental Cash Flow Information - Schedule of Non Cash Investing and Financing Activities (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash paid for:
Interest	$ 53.0	$ 76.8
Income taxes	28.0	35.2
Non-cash investing/financing activities:
Property and equipment acquired through capital leases	2.5	5.0
Deferred and contingent acquisition payment obligations	31.5	12.3
Increase in beneficial interest in a securitization	$ 6.9	$ 1.7