Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Land	$ 188,096	$ 117,559
Buildings and equipment	937,926	512,870
Other	20,961	18,939
Total property, plant, and equipment	1,146,983	649,368
Proved oil and gas properties	0	400
Less accumulated depreciation, depletion, and amortization	(185,040)	(111,507)
Property, plant, and equipment, net	961,943	538,261
Depreciation expense	$ 75,200	$ 39,000	$ 31,800