Capitalized Interest - Summary of Interest Costs Incurred, Capitalized, Expensed and Charged to Cost of Sales (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Capitalized Interest Costs, Including Allowance for Funds Used During Construction [Roll Forward]
Interest capitalized, beginning of period	$ 3,499	$ 4,154
Interest incurred	6,635	6,499
Interest expense	(6,486)	(6,215)
Interest charged to cost of sales	(614)	(298)
Interest capitalized, end of period	$ 3,034	$ 4,140