Acquisitions - Allocation of Purchase Price to Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Purchase Price Allocation, Goodwill	$ 328,617	$ 245,443
Matan Digital Printers [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Purchase Price Allocation, Goodwill	26,609
Purchase Price Allocation	47,859
Net tangible liabilities	(4,945)
Total purchase price	42,914
Reggiani Macchine [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Purchase Price Allocation, Goodwill	65,167
Purchase Price Allocation	134,019
Net tangible liabilities	(34,075)
Total purchase price	$ 99,944
Customer Relationships [Member] | Matan Digital Printers [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	6 years
Purchase Price Allocation, intangible assets	$ 6,630
Customer Relationships [Member] | Reggiani Macchine [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	5 years
Purchase Price Allocation, intangible assets	$ 12,187
Existing Technology [Member] | Matan Digital Printers [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	5 years
Purchase Price Allocation, intangible assets	$ 8,790
Existing Technology [Member] | Reggiani Macchine [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	5 years
Purchase Price Allocation, intangible assets	$ 33,118
Trade Names [Member] | Matan Digital Printers [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	5 years
Purchase Price Allocation, intangible assets	$ 2,570
Trade Names [Member] | Reggiani Macchine [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	5 years
Purchase Price Allocation, intangible assets	$ 11,964
IPR&D [Member] | Matan Digital Printers [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Purchase Price Allocation, intangible assets	3,190
IPR&D [Member] | Reggiani Macchine [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Purchase Price Allocation, intangible assets	$ 10,879
Backlog [Member] | Matan Digital Printers [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life, Description	Less than one year
Purchase Price Allocation, intangible assets	$ 70
Backlog [Member] | Reggiani Macchine [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life, Description	Less than one year
Purchase Price Allocation, intangible assets	$ 704