Annual report pursuant to Section 13 and 15(d)

NATURE OF OPERATIONS AND ACCOUNTING POLICIES Deferred Revenues (Details)

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NATURE OF OPERATIONS AND ACCOUNTING POLICIES Deferred Revenues (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Movement in Deferred Revenue [Roll Forward]  
Balance at beginning of period $ 31,047
Revenues deferred during period 32,531
Revenues recognized during period (21,446)
Elimination due to consolidation (42,132)
Balance at end of period $ 0