Discontinued Operations - Results of Discontinued Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net income (loss) from discontinued operations	$ 0.6	$ 124.9	$ (88.4)
Business Services | Disposition by Sale | Logistics
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Net sales		632.5	865.7
Cost of sales		(548.6)	(758.7)
Selling, general, administrative and other operating expenses		(66.2)	(95.1)
Restructuring, impairment and other expense		(21.1)	(98.6)
Operating loss from discontinued operations		(3.4)	(86.7)
Income tax (benefit) expense		(0.9)	1.7
Net income (loss) from discontinued operations		$ (2.5)	$ (88.4)