Fair Value Measurement - Contingent Consideration (Details) - Omni Energy, LLC - Contingent Consideration - USD ($) $ in Thousands	5 Months Ended	12 Months Ended
Dec. 31, 2019	Dec. 31, 2021
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]
Beginning balance	$ 11,809	$ 4,653
Change in fair value recognized in earnings within sales and marketing expense	(6,030)	(4,653)
Payable for solar systems that have met deployment milestones	$ (1,126)
Ending balance		$ 0

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- Definition

Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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