v3.3.1.900
SUBSEQUENT EVENTS (Details) - Subsequent Event - Settlement Agreement with AES and NuDevco
$ in Millions
3 Months Ended
Mar. 30, 2016
USD ($)
shares
Subsequent Events  
Letter of credit, amount issued due to contract default | $ $ 15.0
NuDevco  
Subsequent Events  
Number of IDR units to be surrendered (in shares) 10
NuDevco | Subordinate Units  
Subsequent Events  
Number of limited partner units to be surrendered (in shares) 8,724,545
NuDevco | Common Units  
Subsequent Events  
Number of limited partner units to be surrendered (in shares) 1,939,265