Restricted Cash and Cash Equivalents - Additional Information (Details) - USD ($) $ in Thousands		1 Months Ended	5 Months Ended
	Dec. 31, 2020	Jul. 31, 2020	Dec. 31, 2020
Restricted Cash And Cash Equivalents Items [Line Items]
Qualified expenditures for construction of facility			$ 47,300
Restricted cash and cash equivalents	$ 115,258		$ 115,258
Variable Rate Green Bonds [Member]
Restricted Cash And Cash Equivalents Items [Line Items]
Debt instrument, issuance date	Jul. 27, 2020
Issuance of bonds	$ 162,600	$ 162,600
Debt instrument, term	40 years	40 years