Earnings per Share - Narrative (Detail) - shares		3 Months Ended		9 Months Ended
	Jun. 08, 2015	Jun. 30, 2015	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Line Items]
Treasury stock, shares acquired				0	0
Courier Corporation
Earnings Per Share [Line Items]
Issuance of common stock shares for acquisitions of businesses	8,000,000	8,000,000
Consolidated Graphics, Inc
Earnings Per Share [Line Items]
Issuance of common stock shares for acquisitions of businesses			16,000,000
Esselte
Earnings Per Share [Line Items]
Issuance of common stock shares for acquisitions of businesses			1,000,000