REPORTABLE SEGMENTS AND RELATED INFORMATION - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Segment Reporting Information [Line Items]
Number of reportable segments	1
Texas NICUSA, LLC
Segment Reporting Information [Line Items]
Percentage of total revenues	21.00%	22.00%	15.00%
Data Resellers
Segment Reporting Information [Line Items]
Percentage of total revenues	28.00%	27.00%	32.00%
Percentage of accounts receivable	22.00%	25.00%
Outsourced Portals - DMV Transaction - Based
Segment Reporting Information [Line Items]
Percentage of total revenues	36.00%	39.00%	42.00%