XML 61 R49.htm IDEA: XBRL DOCUMENT v3.24.3

Basic and Diluted Loss Per Share - Schedule of potentially dilutive securities excluded from the diluted loss per share calculation (Details) - shares	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Earnings (Loss) Per Share
Total potentially dilutive securities	49,762,936	49,032,283
Warrants
Earnings (Loss) Per Share
Total potentially dilutive securities	19,333,303	19,333,303
2014 Plan & 2021 Plan - Stock Options
Earnings (Loss) Per Share
Total potentially dilutive securities	23,497,907	26,386,130
2021 Plan - RSUs
Earnings (Loss) Per Share
Total potentially dilutive securities	6,764,178	3,192,511
ESPP - Common Stock
Earnings (Loss) Per Share
Total potentially dilutive securities	167,548	120,339

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

+ Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=sldp_EquityIncentive2014And2021PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=sldp_EquityIncentive2021PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=sldp_EmployeeStockPurchasePlan2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: