Subsequent Events - Additional Information (Detail) - Subsequent Event - Dividend Declared $ / shares in Units, $ in Thousands	1 Months Ended
	Oct. 31, 2018 USD ($) $ / shares
Subsequent Event [Line Items]
Distribution declared | $ / shares	$ 0.1175
Partners capital projected distribution amount on annualized basis | $ / shares	0.47
Minimum dividend distribution per unit | $ / shares	$ 0.0675
Amount to paid to common unit holders	$ 6,200
Amount to paid to the General Partner	200
Incentive distribution to the General Partner	170
Incentive distributions to management	$ 200
Dividend paid date	Nov. 06, 2018
Dividend record date	Oct. 29, 2018