Summary of Significant Accounting Policies - Summary of Useful Lives of Property Plant and Equipment (Detail) (Parenthetical) - Renewable Natural Gas [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Gain on Insurance Proceeds [Member]
Property, Plant and Equipment [Line Items]
Loss contingency receivable proceeds	$ 332	$ 3,934
Gain on Insurance Proceeds [Member] | Property Replacement [Member]
Property, Plant and Equipment [Line Items]
Loss contingency receivable proceeds		1,659
Gain on Insurance Proceeds [Member] | Business Interruption [Member]
Property, Plant and Equipment [Line Items]
Loss contingency receivable proceeds		$ 2,275
Other Nonoperating Income (Expense) [Member] | Business Interruption [Member]
Property, Plant and Equipment [Line Items]
Loss contingency receivable proceeds			$ 30