Other Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount	$ 64,525	$ 63,215
Accumulated Amortization	62,772	61,079
Net	1,753	2,136
Customer relationships
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount	30,918	30,182
Accumulated Amortization	30,073	29,236
Net	845	946
Developed technology
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount	24,403	24,047
Accumulated Amortization	23,751	23,244
Net	652	803
Patents, trademarks and tradenames
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount	3,822	3,717
Accumulated Amortization	3,566	3,398
Net	256	319
Servicing contracts and other
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount	5,382	5,269
Accumulated Amortization	5,382	5,201
Net	$ 0	$ 68