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WARRANTY OBLIGATIONS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Product Warranty Liability [Line Items]
Change in estimates, increase (decrease)	$ 5,509	$ (275)	$ 13,230	$ (12,636)
Product Replacement Costs Related To Battery
Product Warranty Liability [Line Items]
Change in estimates, increase (decrease)	1,800	(1,800)	7,700	(11,100)
Enphase IQ Battery Storage System
Product Warranty Liability [Line Items]
Change in estimates, increase (decrease)		(1,400)		(4,400)
Other Products
Product Warranty Liability [Line Items]
Change in estimates, increase (decrease)	$ 3,700	$ 2,900	$ 5,500	$ 2,900

X

- Definition

Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (c)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-8

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- Definition

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+ References

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