COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended										3 Months Ended	1 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Directors and Officers Liability Insurance Minimum Day	Dec. 31, 2011 Directors and Officers Liability Insurance Maximum Day	Dec. 31, 2011 Legal Fees and Other Third Party Costs	Dec. 31, 2011 Legal Fees and Other Third Party Costs Directors and Officers Liability Insurance	Dec. 31, 2010 Legal Fees, Civil Penalties and Other Third Party Costs	Dec. 31, 2009 Legal Fees, Civil Penalties and Other Third Party Costs	Dec. 31, 2010 Legal Fees, Civil Penalties and Other Third Party Costs Directors and Officers Liability Insurance	Sep. 30, 2010 SEC Matter Legal Fees, Civil Penalties and Other Third Party Costs	Oct. 11, 2011 Derivative Action	Oct. 31, 2011 Derivative Action Legal Fees and Other Third Party Costs	Jul. 29, 2011 Claims that Specify Amount of Damages Sought NIC Technologies, LLC	Jul. 29, 2011 Claims that Specify Amount of Damages Sought NIC Technologies, LLC Minimum
Commitments and Contingencies Disclosure [Line Items]
Rent expense for operating leases									$ 3,400,000	$ 3,100,000	$ 2,800,000
Selling & administrative	7,350,510	6,275,587	8,419,671	6,685,990	6,016,791	6,503,567	8,102,849	7,303,233	28,731,758	27,926,440	25,650,798			4,200,000		5,100,000	1,000,000		500,000
Reimbursement from insurance carrier															4,500,000			2,700,000
Receipt of reimbursement from Mr. Fraser																					225,000
Operating income	9,620,512	10,979,966	9,442,917	8,464,677	8,032,180	9,247,948	6,551,651	5,566,335	38,508,072	29,398,114	22,020,844				500,000			(2,400,000)
Expenses that are subject to insurance reimbursement, collection period												90	120
Case contribution and award																				5,000
Attorney's fees and costs paid to plaintiff's counsel																				495,000
Derivative Action settlement agreement amount																				225,000
Damages sought value																							3,487,500
Paid for settlement																						$ 195,000