Summary of Significant Accounting Policies - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 1,292,916	$ 1,196,061	$ 1,100,000
Under Customer Agreements:
Deferred Revenue Arrangement [Line Items]
Deferred revenue	1,005,251	945,426
Under Customer Agreements: | Payments received, net
Deferred Revenue Arrangement [Line Items]
Deferred revenue	927,422	873,137
Under Customer Agreements: | Financing component balance
Deferred Revenue Arrangement [Line Items]
Deferred revenue	77,829	72,289
Under SREC contracts:
Deferred Revenue Arrangement [Line Items]
Deferred revenue	287,665	250,635
Under SREC contracts: | Payments received, net
Deferred Revenue Arrangement [Line Items]
Deferred revenue	272,417	237,800
Under SREC contracts: | Financing component balance
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 15,248	$ 12,835