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Discontinued Operations - Schedule of Non-Cash Items and Capital Expenditures of Discontinued Operations (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]    
Pension settlement charges $ 96.4  
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   108.5
Pension settlement charges   76.5
Impairment charges   1.4
Assumption of warehousing equipment related to customer contract   8.8
Purchase of property, plant and equipment   $ 31.2