FAIR VALUE MEASUREMENTS (Details 3) (Contingent consideration, De Novo Legal LLC, USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Contingent consideration \| De Novo Legal LLC
Change in the acquisition-related contingent consideration obligation
Balance at the beginning of period	$ 16,226
Increase in fair value related to accretion	962
Decrease in fair value of contingent consideration obligation	$ (17,188)

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant