Segment and Geographic Area Information - Schedule of Segment Reporting Information (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net Sales	$ 6,276.2	$ 6,800.2	$ 6,939.6
Income (Loss) from Operations	98.6	208.6	211.4
Assets of Operations	3,330.1	3,640.8
Depreciation and amortization	169.2	181.4	191.4
Capital Expenditures	138.8	104.4	108.5
Continuing Operations
Segment Reporting Information [Line Items]
Assets of Operations	3,330.1	3,640.8	3,904.5
Depreciation and amortization	169.2	181.4	191.4
Capital Expenditures	138.8	104.4	108.5
Business Services
Segment Reporting Information [Line Items]
Net Sales	4,995.7	5,619.1	5,762.7
Marketing Solutions
Segment Reporting Information [Line Items]
Net Sales	1,280.5	1,181.1	1,176.9
Total Operating Segments
Segment Reporting Information [Line Items]
Net Sales	6,408.7	6,939.0	7,106.1
Income (Loss) from Operations	199.7	296.9	279.4
Total Operating Segments \| Continuing Operations
Segment Reporting Information [Line Items]
Assets of Operations	3,077.8	3,439.1	3,706.5
Depreciation and amortization	162.2	175.8	187.3
Capital Expenditures	116.3	81.0	84.9
Total Operating Segments \| Business Services
Segment Reporting Information [Line Items]
Net Sales	5,094.4	5,720.4	5,890.4
Income (Loss) from Operations	132.7	242.3	248.6
Total Operating Segments \| Business Services \| Continuing Operations
Segment Reporting Information [Line Items]
Assets of Operations	2,329.7	2,764.5	2,989.5
Depreciation and amortization	108.3	128.4	139.9
Capital Expenditures	79.8	69.4	70.3
Total Operating Segments \| Marketing Solutions
Segment Reporting Information [Line Items]
Net Sales	1,314.3	1,218.6	1,215.7
Income (Loss) from Operations	67.0	54.6	30.8
Total Operating Segments \| Marketing Solutions \| Continuing Operations
Segment Reporting Information [Line Items]
Assets of Operations	748.1	674.6	717.0
Depreciation and amortization	53.9	47.4	47.4
Capital Expenditures	36.5	11.6	14.6
Intersegment Sales
Segment Reporting Information [Line Items]
Net Sales	(132.5)	(138.8)	(166.5)
Intersegment Sales \| Business Services
Segment Reporting Information [Line Items]
Net Sales	(98.7)	(101.3)	(127.7)
Intersegment Sales \| Marketing Solutions
Segment Reporting Information [Line Items]
Net Sales	(33.8)	(37.5)	(38.8)
Corporate
Segment Reporting Information [Line Items]
Income (Loss) from Operations	(101.1)	(88.3)	(68.0)
Assets of Operations	252.3	201.7	198.0
Corporate \| Continuing Operations
Segment Reporting Information [Line Items]
Assets of Operations	252.3	201.7	198.0
Depreciation and amortization	7.0	5.6	4.1
Capital Expenditures	$ 22.5	$ 23.4	$ 23.6

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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