LONG-TERM OBLIGATIONS (Details) (USD $)	0 Months Ended			3 Months Ended	9 Months Ended		0 Months Ended	9 Months Ended		0 Months Ended	3 Months Ended	0 Months Ended		9 Months Ended					9 Months Ended			9 Months Ended					9 Months Ended
	Aug. 27, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 De Novo Legal LLC	Sep. 30, 2013 De Novo Legal LLC	Dec. 31, 2012 De Novo Legal LLC	May 31, 2012 Jupiter eSources LLC	Sep. 30, 2013 Jupiter eSources LLC	Dec. 31, 2012 Jupiter eSources LLC	Aug. 27, 2013 Credit Facility	Sep. 30, 2013 Credit Facility	Aug. 27, 2013 Senior secured term loan	Sep. 30, 2013 Senior secured term loan	Sep. 30, 2013 Senior secured term loan Prime rate	Sep. 30, 2013 Senior secured term loan LIBOR	Sep. 30, 2013 Senior revolving loan item	Aug. 27, 2013 Senior revolving loan	Dec. 31, 2012 Senior revolving loan	Sep. 30, 2013 Senior revolving loan Prime rate	Sep. 30, 2013 Senior revolving loan Prime rate Minimum	Sep. 30, 2013 Senior revolving loan Prime rate Maximum	Sep. 30, 2013 Senior revolving loan LIBOR	Sep. 30, 2013 Senior revolving loan LIBOR Minimum	Sep. 30, 2013 Senior revolving loan LIBOR Maximum	Sep. 30, 2013 Capital leases	Dec. 31, 2012 Capital leases	Sep. 30, 2013 Notes payable	Dec. 31, 2012 Notes payable	Dec. 31, 2012 Acquisition-related liabilities	Dec. 31, 2012 Deferred acquisition price De Novo Legal LLC
LONG-TERM OBLIGATIONS
Total long-term obligations, including current portion		$ 312,028,000	$ 212,439,000										$ 300,000,000			$ 0		$ 199,000,000							$ 6,943,000	$ 2,860,000	$ 5,085,000	$ 7,080,000	$ 3,499,000	$ 3,499,000
Total current maturities of long-term obligations		11,059,000	9,151,000										3,000,000												4,002,000	1,640,000	4,057,000	4,012,000	3,499,000
Total long-term obligations		300,969,000	203,288,000																											3,499,000
Weighted average interest rate (as a percent)													4.75%												6.00%		2.20%
Aggregate amount of funds available										400,000,000							100,000,000
Principal amount of debt issued												300,000,000
Maximum borrowing capacity subject at the entity's option, subject to compliance with covenants										600,000,000							200,000,000
Fees and expenses associated with the repayment of the Credit Facility, and the repayment of the outstanding balance under the Former Credit Facility										8,100,000
Write-off of a portion of the unamortized deferred debt issuance costs for the Former Credit Facility											1,000,000
Days followiing the closing date required, as specified within the credit agreement, to enter into a hedging arrangement related to protection against interest rate fluctuations										90 days
Basis points added to reference rate (as a percent)														2.75%	3.75%					2.00%	3.00%		3.00%	4.00%
Variable interest rate basis														prime rate	one, two, three or six month LIBOR rate				Prime rate			LIBOR
Interest rate, variable interest rate floor														2.00%	1.00%
Number of rate options																2
First date of required quarterly payments of principal	Dec. 31, 2013
Percentage of payments of the principal amount of debt per quarter												0.25%
Payments of the principal amount of debt annually												3,000,000
Net leverage ratio, maximum											4.50
Annual maturities under the senior secured term loan, due August 2020
2013													750,000
2014													3,000,000
2015													3,000,000
2016													3,000,000
2017													3,000,000
2018 and Thereafter													287,250,000
Total		312,028,000	212,439,000										300,000,000			0		199,000,000							6,943,000	2,860,000	5,085,000	7,080,000	3,499,000	3,499,000
Interest rate bearing notes payable (as a percent)																											2.20%
Contingent consideration paid				3,100,000
Balance amount written off as a credit to operating expenses				800,000	800,000
Potential undiscounted amount of all future payments, minimum				0	0			0
Potential undiscounted amount of all future payments, maximum				29,100,000	29,100,000			10,000,000
Amount of potential contingent consideration recorded				0	0	0		0	0
Payment of deferred acquisition consideration							8,400,000
Payment of deferred acquisition consideration reclassified from investing activities to financing activities								$ 8,400,000