LONG-TERM DEBT - Schedule of debt issuance cost reclassification (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets, net	$ 38,468	$ 41,691
Long-term debt	$ 1,485,620	1,483,176
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets, net		58,515
Long-term debt		$ 1,500,000