Capitalized Interest - Summary of Interest Costs Incurred, Capitalized, Expensed and Charged to Cost of Sales (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Capitalized Interest Costs, Including Allowance for Funds Used During Construction [Roll Forward]
Interest capitalized, beginning of period	$ 644	$ 2,673	$ 1,025	$ 3,499
Interest incurred	13,263	11,792	39,977	28,092
Interest expense	(13,243)	(11,687)	(39,910)	(27,698)
Interest charged to cost of sales	(100)	(370)	(528)	(1,485)
Interest capitalized, end of period	$ 564	$ 2,408	$ 564	$ 2,408