Acquisitions and Dispositions - Fair Value, Valuation Techniques and Related Unobservable Inputs (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
Customer Relationships
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	$ 96.3
Trade Names
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	4.6
Non-Compete Agreements
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value	0.1
Courier Corporation | 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	$ 96.3
Valuation Technique	Excess earnings
Courier Corporation | Customer Relationships | Fair Value, Inputs, Level 3 | Minimum | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate	13.00%
Attrition rate	0.00%
Courier Corporation | Customer Relationships | Fair Value, Inputs, Level 3 | Maximum | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Discount rate	16.00%
Attrition rate	5.00%
Courier Corporation | 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	$ 10.1
Valuation Technique	Relief-from-royalty method
Discount rate	12.00%
Courier Corporation | Trade Names | Fair Value, Inputs, Level 3 | Minimum | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Royalty rate (after-tax)	0.30%
Courier Corporation | Trade Names | Fair Value, Inputs, Level 3 | Maximum | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Royalty rate (after-tax)	1.00%
Courier Corporation | 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	$ 1.6
Valuation Technique	Relief-from-royalty method
Discount rate	11.00%
Royalty rate (after-tax)	15.00%
Courier Corporation | Non-Compete 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	$ 0.1
Valuation Technique	Excess earnings
Discount rate	17.00%
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 | Minimum | Fair Value, Measurements, Nonrecurring
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 | Maximum | Fair Value, Measurements, Nonrecurring
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 | Minimum | Fair Value, Measurements, Nonrecurring
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 | Maximum | Fair Value, Measurements, Nonrecurring
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%