DESCRIPTION OF BUSINESS AND ORGANIZATION (Details) - Office	12 Months Ended									152 Months Ended	260 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2007	Dec. 31, 2016
DESCRIPTION OF BUSINESS AND ORGANIZATION [Abstract]
Number of offices	69	68	67								69
Number of acquisitions	0	0	0	0	0	0	0	3	0	42	45
Number of de novo Developments	1	1	2	2	2	0	2	0	1	26	37
Office Consolidations/Closings	0	0	(1)	(1)	(1)	0	(2)	0	0	(8)	(13)