ACQUISITIONS AND DISPOSITIONS (Schedule of Assets and Liabilities Held for Sale) (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Long Lived Assets Held-for-sale [Line Items]    
Prepaid expenses and other assets $ 1,353  
Property, plant, and equipment, net 58,554 0
Intangibles and other assets, net 1,057 50
Assets held for sale 60,964 50
Liabilities related to assets held for sale (2,198) 0
Asset Retirement Obligations    
Long Lived Assets Held-for-sale [Line Items]    
Liabilities related to assets held for sale   $ 0