Acquisition - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended	0 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Oct. 29, 2012 Design by Front Limited [Member]	Dec. 31, 2013 Design by Front Limited [Member]	Oct. 29, 2012 IRELAND [Member] Employees	Mar. 19, 2012 Bitstream Inc [Member] Foundries Fonts Patents	Mar. 19, 2012 Bitstream Inc [Member] Foundries Fonts Patents	Dec. 31, 2013 Bitstream Inc [Member]	Dec. 31, 2013 INDIA [Member] Engineer	Dec. 31, 2013 United States [Member] Employees
Business Acquisition [Line Items]
Business acquisition, total purchase price				$ 4,600,000			$ 49,600,000	$ 49,600,000
Business acquisition				2,500,000				24,600,000
Contingent consideration payable				2,100,000
Date of acquisition					Oct. 29, 2012				Mar. 19, 2012
Intangible asset balances increased due to acquisition				2,500,000
Goodwill associated with acquisition	176,350,000	174,294,000	140,807,000	2,500,000					30,397,000
Number of employees joined in connection with the acquisition						13				42	12
Revolving credit facility to finance business acquisition	$ 25,000,000
Number of fonts featured							89,000	89,000
Number of foundries							900	900
Number of patents purchased							10	10