Restructuring, Impairment and Other Charges - Schedule of Net Restructuring, Impairment and Other Charges (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost And Reserve [Line Items]
Employee Terminations	$ 21.9	$ 22.4	$ 24.6
Other Restructuring Charges	3.5	9.2	11.1
Total Restructuring Charges	25.4	31.6	35.7
Impairment	556.6	28.9	25.1
Other Charges	2.3	2.2	11.5
Total	584.3	62.7	72.3
Total Operating Segments | Variable Print
Restructuring Cost And Reserve [Line Items]
Employee Terminations	1.4	3.1	13.2
Other Restructuring Charges	1.7	4.7	7.9
Total Restructuring Charges	3.1	7.8	21.1
Impairment	557.9	(0.5)	11.4
Other Charges	1.9	1.8	7.6
Total	562.9	9.1	40.1
Total Operating Segments | Strategic Services
Restructuring Cost And Reserve [Line Items]
Employee Terminations	1.8	4.4	2.8
Other Restructuring Charges	(0.1)	0.1	(0.1)
Total Restructuring Charges	1.7	4.5	2.7
Impairment		0.9
Other Charges	0.4	0.4	3.9
Total	2.1	5.8	6.6
Total Operating Segments | International
Restructuring Cost And Reserve [Line Items]
Employee Terminations	9.6	11.9	6.1
Other Restructuring Charges	1.8	3.2	1.3
Total Restructuring Charges	11.4	15.1	7.4
Impairment	(2.5)	28.5	13.7
Total	8.9	43.6	21.1
Corporate
Restructuring Cost And Reserve [Line Items]
Employee Terminations	9.1	3.0	2.5
Other Restructuring Charges	0.1	1.2	2.0
Total Restructuring Charges	9.2	4.2	4.5
Impairment	1.2
Total	$ 10.4	$ 4.2	$ 4.5