DEFERRED REVENUE AND COSTS (DEFERRED COSTS CLASSIFICATION TABLE) (DETAILS) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
DEFERRED REVENUE AND COSTS [ABSTRACT]
Deferred costs - current	$ 16,905	$ 16,845
Deferred costs - long-term	11,472	12,214
Total deferred costs	$ 28,377	$ 29,059

Sum of the carrying amounts of deferred costs that are expected to be recognized as a charge against earnings in periods after one year or beyond the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 17
-Article 5

Name:	us-gaap_DeferredCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant