Restructuring, Impairment and Other Charges - Other Charges - Narrative (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) Pension_Plan	Dec. 31, 2014 USD ($)
Restructuring Cost And Reserve [Line Items]
Other Charges	$ 2.3	$ 2.2	$ 11.5
Accrued liabilities	541.7	462.1
Other noncurrent liabilities	193.1	$ 217.9
Courier Corporation
Restructuring Cost And Reserve [Line Items]
Number of multi-employer pension plans | Pension_Plan		2
Multi-employer pension plan withdrawal obligations
Restructuring Cost And Reserve [Line Items]
Other Charges		$ 2.2	$ 11.5
Accrued liabilities	4.9	4.7
Other noncurrent liabilities	$ 34.8	$ 38.0