Restructuring, Impairment and Other Charges - Schedule of Net Restructuring, Impairment and Other Charges (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost And Reserve [Line Items]
Employee Terminations	$ 18.8	$ 4.8	$ 39.8	$ 27.8
Other Restructuring Charges	4.6	5.1	13.0	16.0
Total Restructuring Charges	23.4	9.9	52.8	43.8
Impairment	28.2	0.3	29.0	10.1
Other Charges	1.3	9.7	23.1	34.0
Total	52.9	19.9	104.9	87.9
Publishing and Retail Services
Restructuring Cost And Reserve [Line Items]
Employee Terminations	2.1	(0.2)	5.3	0.2
Other Restructuring Charges	1.0	1.8	2.5	5.6
Total Restructuring Charges	3.1	1.6	7.8	5.8
Impairment	2.0	(1.2)	1.5	2.4
Other Charges	0.7	7.4	18.5	23.7
Total	5.8	7.8	27.8	31.9
Variable Print
Restructuring Cost And Reserve [Line Items]
Employee Terminations	0.5	1.6	3.6	15.7
Other Restructuring Charges	2.1	2.8	5.4	6.2
Total Restructuring Charges	2.6	4.4	9.0	21.9
Impairment	(0.1)	1.7	1.6	6.9
Other Charges	0.4	2.2	1.3	6.3
Total	2.9	8.3	11.9	35.1
Strategic Services
Restructuring Cost And Reserve [Line Items]
Employee Terminations	1.9	0.9	5.7	3.3
Other Restructuring Charges	0.5	0.2	1.6	1.7
Total Restructuring Charges	2.4	1.1	7.3	5.0
Impairment	0.9		0.9
Other Charges	0.2	0.1	3.3	4.0
Total	3.5	1.2	11.5	9.0
International
Restructuring Cost And Reserve [Line Items]
Employee Terminations	13.1	1.9	22.3	5.9
Other Restructuring Charges	0.8	0.2	2.5	0.8
Total Restructuring Charges	13.9	2.1	24.8	6.7
Impairment	25.4	(0.2)	25.0	0.8
Total	39.3	1.9	49.8	7.5
Corporate
Restructuring Cost And Reserve [Line Items]
Employee Terminations	1.2	0.6	2.9	2.7
Other Restructuring Charges	0.2	0.1	1.0	1.7
Total Restructuring Charges	1.4	0.7	3.9	4.4
Total	$ 1.4	$ 0.7	$ 3.9	$ 4.4