Revenue Recognition - Net Sales Disaggregated by Products and Services (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Total net sales	$ 1,521.9	$ 1,707.8
Commercial Print
Disaggregation Of Revenue [Line Items]
Total net sales	422.4	462.2
Statements
Disaggregation Of Revenue [Line Items]
Total net sales	149.5	159.8
Direct Marketing
Disaggregation Of Revenue [Line Items]
Total net sales	148.5	148.1
Packaging
Disaggregation Of Revenue [Line Items]
Total net sales	139.5	141.4
Labels
Disaggregation Of Revenue [Line Items]
Total net sales	120.5	117.5
Digital Print and Fulfillment
Disaggregation Of Revenue [Line Items]
Total net sales	109.6	110.8
Supply Chain Management
Disaggregation Of Revenue [Line Items]
Total net sales	78.5	79.8
Forms
Disaggregation Of Revenue [Line Items]
Total net sales	62.4	67.0
Products
Disaggregation Of Revenue [Line Items]
Total net sales	1,230.9	1,286.6
Logistics
Disaggregation Of Revenue [Line Items]
Total net sales	201.7	327.2
Business Process Outsourcing
Disaggregation Of Revenue [Line Items]
Total net sales	61.8	61.2
Digital and Creative Solutions
Disaggregation Of Revenue [Line Items]
Total net sales	27.5	32.8
Services
Disaggregation Of Revenue [Line Items]
Total net sales	$ 291.0	$ 421.2