Discontinued Operations - Schedule of Non-Cash Items and Capital Expenditures of Discontinued Operations (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Depreciation and amortization		$ 204.2	$ 232.5	$ 254.6
Impairment charges		558.3	36.5	47.3
Loss on debt extinguishment	$ 10.8	96.1		77.1
Gain on bargain purchase				(9.5)
Assumption of warehousing equipment related to customer contract		8.8
Donnelley Financial Solutions And L S C Communications | Discontinued Operations Spinoff
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Depreciation and amortization		159.0	221.5	219.4
Pension settlement charges		77.7		95.7
Impairment charges		1.5	7.1	22.0
Loss on debt extinguishment		96.1
Gain on bargain purchase				(9.5)
Assumption of warehousing equipment related to customer contract		8.8
Purchase of property, plant and equipment		$ (49.0)	$ (74.0)	$ (89.6)