Acquisitions and Dispositions - Fair Value, Valuation Techniques and Related Unobservable Inputs (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Customer Relationships
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	178.2
Customer Relationships | Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value			3.1
Valuation Technique	Excess earnings	With and without method	Excess earnings
Discount rate		16.00%
Customer Relationships | Fair Value, Inputs, Level 3 | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate	12.00%		12.50%
Attrition rate	6.60%		2.00%
Customer Relationships | Fair Value, Inputs, Level 3 | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate	18.00%		15.00%
Attrition rate	12.00%		15.90%
Trade Names
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	17.8
Noncompete Agreements
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	0.3
Consolidated Graphics, Esselte and MultiCorpora | Customer Relationships | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	178.2
Valuation Technique	Excess earnings
Consolidated Graphics, Esselte and MultiCorpora | Customer Relationships | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate	17.00%
Attrition rate	5.00%
Consolidated Graphics, Esselte and MultiCorpora | Customer Relationships | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate	21.00%
Attrition rate	9.50%
Consolidated Graphics, Esselte and MultiCorpora | Trade Names | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	26.5
Valuation Technique	Relief-from-royalty method
Discount rate	19.00%
Consolidated Graphics, Esselte and MultiCorpora | Trade Names | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Royalty rate (after-tax)	0.50%
Consolidated Graphics, Esselte and MultiCorpora | Trade Names | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Royalty rate (after-tax)	1.50%
Consolidated Graphics, Esselte and MultiCorpora | Technology | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	1.1
Valuation Technique	Excess earnings
Discount rate	17.00%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Contingent Consideration
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value			3.5
Valuation Technique	Probability weighted discounted future cash flows
Discount rate			4.50%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Customer Relationships | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value			31.4
Valuation Technique	Excess earnings, with and without method
Presort, Meisel, XPO and EDGAR Online Acquisitions | Customer Relationships | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate			16.00%
Attrition rate			7.00%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Customer Relationships | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate			17.00%
Attrition rate			20.00%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Trade Names | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value			3.5
Valuation Technique	Relief-from-royalty method
Presort, Meisel, XPO and EDGAR Online Acquisitions | Trade Names | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Royalty rate (after-tax)			0.30%
Discount rate			15.50%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Trade Names | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Royalty rate (after-tax)			1.20%
Discount rate			17.00%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Technology | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value			14.5
Royalty rate (after-tax)			4.50%
Valuation Technique	Excess earnings, relief-from-royalty method, cost approach
Presort, Meisel, XPO and EDGAR Online Acquisitions | Technology | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate			16.00%
Obsolescence factor			10.00%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Technology | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate			17.00%
Obsolescence factor			20.00%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Noncompete Agreements | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value			$ 2.6
Valuation Technique	Excess earnings, with and without method
Presort, Meisel, XPO and EDGAR Online Acquisitions | Noncompete Agreements | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate			16.00%
Presort, Meisel, XPO and EDGAR Online Acquisitions | Noncompete Agreements | Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate			17.00%