PROPERTY AND EQUIPMENT (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Less accumulated depreciation	$ (87,646,000)	$ (80,949,000)
Property and equipment, net	89,117,000	91,435,000
Depreciation	7,788,000	8,593,000	9,208,000
Rental expense	7,100,000	6,700,000	6,800,000
Depreciable Assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, net	69,143,000	70,812,000
Buildings and leased improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	95,270,000	95,374,000
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	61,519,000	56,387,000
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 19,974,000	$ 20,623,000