Segment Information - Schedule of Segment Reporting Information (Detail) - USD ($) $ in Millions	3 Months Ended							9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Net Sales	$ 1,734.9	$ 1,620.0	$ 1,658.9	$ 1,858.9	$ 1,725.6	$ 1,616.0	$ 1,632.5	$ 5,013.8	$ 4,974.1
Income (Loss) from Operations	35.9				84.0			121.9	166.3
Assets of Operations	3,956.7			$ 4,268.8				3,956.7
Depreciation and amortization	47.0				51.0			143.1	153.5
Capital Expenditures								77.2	147.9
Continuing operations
Segment Reporting Information [Line Items]
Depreciation and amortization	47.0				51.0			143.1	153.5
Capital Expenditures	23.0				28.7			77.2	98.9
Total Operating Segments
Segment Reporting Information [Line Items]
Total Sales	1,787.8				1,785.2			5,174.4	5,135.9
Income (Loss) from Operations	45.1				99.4			161.0	271.1
Total Operating Segments | Continuing operations
Segment Reporting Information [Line Items]
Depreciation and amortization	46.0				49.6			139.9	151.2
Capital Expenditures	18.0				21.3			62.1	82.4
Intersegment Sales
Segment Reporting Information [Line Items]
Net Sales	(52.9)				(59.6)			(160.6)	(161.8)
Corporate
Segment Reporting Information [Line Items]
Income (Loss) from Operations	(9.2)				(15.4)			(39.1)	(104.8)
Corporate | Continuing operations
Segment Reporting Information [Line Items]
Depreciation and amortization	1.0				1.4			3.2	2.3
Capital Expenditures	5.0				7.4			15.1	16.5
Variable Print
Segment Reporting Information [Line Items]
Net Sales	767.5				790.3			2,279.6	2,311.8
Variable Print | Total Operating Segments
Segment Reporting Information [Line Items]
Total Sales	771.7				796.8			2,291.9	2,326.3
Income (Loss) from Operations	39.3				50.1			114.2	144.0
Variable Print | Total Operating Segments | Continuing operations
Segment Reporting Information [Line Items]
Depreciation and amortization	28.5				30.5			86.2	90.5
Capital Expenditures	6.3				15.0			21.8	45.5
Variable Print | Intersegment Sales
Segment Reporting Information [Line Items]
Net Sales	(4.2)				(6.5)			(12.3)	(14.5)
Strategic Services
Segment Reporting Information [Line Items]
Net Sales	443.7				445.0			1,274.3	1,229.6
Strategic Services | Total Operating Segments
Segment Reporting Information [Line Items]
Total Sales	483.5				486.9			1,394.4	1,343.9
Income (Loss) from Operations	(14.8)				13.3			(7.0)	25.3
Strategic Services | Total Operating Segments | Continuing operations
Segment Reporting Information [Line Items]
Depreciation and amortization	3.8				4.3			12.6	14.0
Capital Expenditures	(0.2)							6.0	13.1
Strategic Services | Intersegment Sales
Segment Reporting Information [Line Items]
Net Sales	(39.8)				(41.9)			(120.1)	(114.3)
International
Segment Reporting Information [Line Items]
Net Sales	523.7				490.3			1,459.9	1,432.7
International | Total Operating Segments
Segment Reporting Information [Line Items]
Total Sales	532.6				501.5			1,488.1	1,465.7
Income (Loss) from Operations	20.6				36.0			53.8	101.8
International | Total Operating Segments | Continuing operations
Segment Reporting Information [Line Items]
Depreciation and amortization	13.7				14.8			41.1	46.7
Capital Expenditures	11.9				6.3			34.3	23.8
International | Intersegment Sales
Segment Reporting Information [Line Items]
Net Sales	$ (8.9)				$ (11.2)			$ (28.2)	$ (33.0)