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Subsequent Events - Additional Information (Detail) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
1 Months Ended 2 Months Ended
Oct. 29, 2013
Dividend Declared
Nov. 30, 2013
Subsequent Event
Plan III Common Units Repurchase Program
Subsequent Event [Line Items]    
Distribution declared $ 0.0825  
Partners capital projected distribution amount on annualized basis $ 0.33  
Minimum dividend distribution per unit $ 0.0675  
Percentage of distributions to common unit holders in excess of minimum quarterly distribution 90.00%  
Percentage of distributions to general unit holders in excess of minimum quarterly distribution 10.00%  
Amount to paid to common unit holders $ 4.7  
Amount to paid to the General Partner 0.07  
Incentive distribution to the General Partner 0.05  
Incentive distributions to Management $ 0.05  
Dividend payable date Nov. 14, 2013  
Dividend record date Nov. 12, 2013  
Number of shares repurchased and retired   250
Average price paid to common units   $ 5.20