Property and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Buildings	Dec. 31, 2013 Data Processing Equipment Minimum	Dec. 31, 2013 Data Processing Equipment Maximum	Dec. 31, 2013 Furniture and Equipment Minimum	Dec. 31, 2013 Furniture and Equipment Maximum	Dec. 31, 2013 Leasehold Improvements Minimum	Dec. 31, 2013 Leasehold Improvements Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			30 years	3 years	5 years	3 years	20 years	5 years	10 years
Buildings	$ 1,726	$ 2,096
Data processing equipment	68,273	59,901
Furniture and equipment	6,385	6,183
Leasehold improvements	2,880	2,380
Property and equipment	79,264	70,560
Less-accumulated depreciation and amortization	(47,555)	(35,331)
Depreciable assets, net	31,709	35,229
Land	1,531	1,508
Property and equipment, net	$ 33,240	$ 36,737