Commitments and Contingencies - Additional Information (Detail)	1 Months Ended		3 Months Ended	11 Months Ended	12 Months Ended			20 Months Ended
	Feb. 29, 2016 USD ($)	Jul. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($) Customer $ / d	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 USD ($)	May 31, 2015 USD ($)
Operating Leased Assets [Line Items]
Accrual for loss contingencies			$ 0	$ 0	$ 0	$ 0		$ 0
Earn-out Payments paid					$ 1,373,000	870,000	$ 0
Fine amount for storage without permit limit (per day) | $ / d					298
Fine amount donated for storage without permit limit			100,000	100,000	$ 100,000			100,000
Settlement agreement aggregate amount payable	$ 2,000,000					2,000,000
Settlement agreement period	3 years
Reduction in settlement payment	$ 500,000
Settlement agreement date	Jan. 01, 2018
Settlement agreement amount paid				1,000,000
JBBR Acquisition [Member]
Operating Leased Assets [Line Items]
Earn-out payments			27,000,000	27,000,000	27,000,000			27,000,000	$ 27,000,000
Earn-out liability recognized			18,000,000	18,000,000	18,000,000	18,830,000	$ 0	18,000,000	$ 19,700,000
Earn-out Payments paid					1,873,000	$ 870,000		2,700,000
Pawnee Terminal Acquisition [Member]
Operating Leased Assets [Line Items]
Estimated remaining construction total cost		$ 11,000,000	11,000,000
Gulf Coast Asphalt Company, L.L.C. [Member]
Operating Leased Assets [Line Items]
Earn-out payments			5,000,000	5,000,000	5,000,000			5,000,000
Earn-out payments, low			$ 0	$ 0	$ 0			$ 0
Number of customers | Customer					1