Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended							1 Months Ended	0 Months Ended	1 Months Ended
	Dec. 31, 2013 Customer	Dec. 31, 2013 Customer	Dec. 31, 2012 Customer	Dec. 31, 2011	Dec. 31, 2013 Minimum [Member] Other Licenses [Member]	Dec. 31, 2013 Maximum [Member] Other Licenses [Member]	Dec. 31, 2013 Accounts Receivable [Member]	Dec. 31, 2012 Accounts Receivable [Member]	Oct. 29, 2012 Design by Front Limited [Member]	Mar. 19, 2012 Bitstream Inc [Member]	Mar. 19, 2012 Bitstream Inc [Member]
Summary Of Significant Accounting Policy [Line Items]
Cash paid, acquisition									$ 4,600,000	$ 49,600,000	$ 49,600,000
Cash available for payment of business acquisition										24,600,000	24,600,000
Cash borrowed from revolving credit facility										25,000,000	25,000,000
Cash and cash equivalents maturity period		Less than 90 days
Time of acquisition		Three months or less
Deposits of cash	6,800,000	6,800,000	3,100,000
Number of customers	1	0	1
Total revenue	10.20%	10.00%	10.00%	10.00%			10.00%	10.20%
Collateral required	0	0
Number of reporting unit		1	1
Write down of assets		0
Impairment of long-lived assets		0
Unamortized software costs	1,500,000	1,500,000	900,000
Intangible assets useful life					1 year	5 years
Advertising expenses		1,700,000	1,300,000	3,800,000
Cumulative translation adjustment, net of tax	1,300,000	1,300,000	45,000	100,000
Cumulative translation adjustment, tax		700,000	100,000	500,000
Unrecognized actuarial gain (loss)	300,000	300,000	600,000	100,000
Unrecognized actuarial gain (loss), net of tax		80,000	300,000	40,000
Total amount of uncertain tax positions	6,200,000	6,200,000	4,600,000
Total amount of recorded interest and penalties expense	$ 56,000	$ 56,000	$ 78,000	$ 300,000