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Solar Energy Systems, net - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Solar Energy Systems Disclosure [Abstract]
Depreciation expense	$ 161.2	$ 141.7
Amortization of deferred grants	$ 2.8	$ 2.0

X

- Definition

Amortization of deferred grants.

+ References

No definition available.

+ Details

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Namespace Prefix:	run_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Solar energy systems disclosure.

+ References

No definition available.

+ Details

Name:	run_SolarEnergySystemsDisclosureAbstract
Namespace Prefix:	run_
Data Type:	xbrli:stringItemType
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Period Type:	duration

X

- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

+ Details

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Period Type:	duration