Other Intangible Assets (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets and Indefinite-Lived Assets [Line Items]
Gross Amount	$ 76,852,000	$ 73,953,000
Accumulated Amortization	69,424,000	65,460,000
Net	7,428,000	8,493,000
Intangible Assets, Gross (Excluding Goodwill)	81,352,000	78,453,000
Other intangible assets, net	11,928,000	12,993,000
Customer relationships
Finite-Lived Intangible Assets and Indefinite-Lived Assets [Line Items]
Gross Amount	36,350,000	35,156,000
Accumulated Amortization	33,512,000	31,262,000
Net	2,838,000	3,894,000
Developed technology
Finite-Lived Intangible Assets and Indefinite-Lived Assets [Line Items]
Gross Amount	29,738,000	29,097,000
Accumulated Amortization	26,365,000	25,039,000
Net	3,373,000	4,058,000
Patents, trademarks and tradenames
Finite-Lived Intangible Assets and Indefinite-Lived Assets [Line Items]
Gross Amount	4,145,000	4,021,000
Accumulated Amortization	3,784,000	3,627,000
Net	361,000	394,000
Servicing contracts and other
Finite-Lived Intangible Assets and Indefinite-Lived Assets [Line Items]
Gross Amount	6,619,000	5,679,000
Accumulated Amortization	5,763,000	5,532,000
Net	856,000	147,000
Tradenames and Trademarks
Finite-Lived Intangible Assets and Indefinite-Lived Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	4,500,000	4,500,000
RealPlayer Group
Finite-Lived Intangible Assets and Indefinite-Lived Assets [Line Items]
Intangible assets acquired	$ 800,000