Capitalized Interest - Summary of Interest Incurred, Capitalized and Expensed Included in Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest Expense [Abstract]
Interest cost incurred	$ 1,902	$ 3,965	$ 8,513	$ 11,633
Interest capitalized				396
Interest expense	$ 1,902	$ 3,965	$ 8,513	$ 11,237