EQUITY INVESTMENTS (Detail 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
EQUITY INVESTMENTS
Representation of investee financial information in the summarized equity method investments (as a percent)	100.00%
INCOME STATEMENT DATA:
Revenue	$ 21,472	$ 19,694
Costs and expenses	(9,738)	(11,422)
Non-operating expenses	(4,296)	(2,721)
Net income	$ 7,438	$ 5,551