Summary of Significant Accounting Policies - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Dec. 31, 2024
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 1,530,386	$ 1,513,333	$ 1,300,000
Under Customer Agreements:
Deferred Revenue Arrangement [Line Items]
Deferred revenue	1,136,810	1,135,223
Under Customer Agreements: | Payments received, net
Deferred Revenue Arrangement [Line Items]
Deferred revenue	1,047,600	1,047,929
Under Customer Agreements: | Financing component balance
Deferred Revenue Arrangement [Line Items]
Deferred revenue	89,210	87,294
Under SREC contracts:
Deferred Revenue Arrangement [Line Items]
Deferred revenue	393,576	378,110
Under SREC contracts: | Payments received, net
Deferred Revenue Arrangement [Line Items]
Deferred revenue	367,997	356,263
Under SREC contracts: | Financing component balance
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 25,579	$ 21,847