Commitments and contingencies - Additional Information (Details) - FCX Solar, LLC [Member] - USD ($) $ / shares in Units, $ in Millions	Dec. 29, 2022	Apr. 21, 2021
Product Warranty Liability [Line Items]
Damages sought value		$ 134.0
Damages paid value	$ 1.5
Stock issued for litigation settlements, shares	797,396
Stock issued for litigation settlements, value	$ 2.0
Shares issued price per share	$ 0.0001
Share price	$ 2.508163

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration