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Subsequent Events - Additional Information (Detail) - Subsequent Event - Dividend Declared
$ / shares in Units, $ in Millions
 1 Months Ended
Jan. 31, 2018
USD ($)
$ / shares
Subsequent Event [Line Items]  
Distribution declared | $ / shares $ 0.11
Partners capital projected distribution amount on annualized basis | $ / shares 0.44
Minimum dividend distribution per unit | $ / shares $ 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 $ 6.1
Amount to paid to the General Partner 0.2
Incentive distribution to the General Partner 0.1
Incentive distributions to management $ 0.1
Dividend payable date Feb. 06, 2018
Dividend record date Jan. 29, 2018