DEFERRED REVENUE AND COSTS (DEFERRED COSTS CLASSIFICATION TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
DEFERRED REVENUE AND COSTS [ABSTRACT]
Deferred costs - current	$ 15,953	$ 12,996
Deferred costs - long-term	13,202	11,625
Total deferred costs	$ 29,155	$ 24,621