Quarterly report pursuant to Section 13 or 15(d)

CERTAIN RELATIONSHIPS AND RELATED-PARTY TRANSACTIONS (Details)

v2.4.0.8
CERTAIN RELATIONSHIPS AND RELATED-PARTY TRANSACTIONS (Details) (Other related-parties [Member], USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Other related-parties [Member]
         
Related Party Transaction [Line Items]          
Receivable balance $ 8,500,000   $ 8,500,000   $ 13,500,000
Revenue from transactions with related parties 1,946,000 1,627,000 3,193,000 2,954,000  
Expenses from transactions with related party $ 5,142,000 $ 2,677,000 $ 9,651,000 $ 7,827,000