XML 83 R63.htm IDEA: XBRL DOCUMENT v3.21.1

Fair Value Measurements (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2021

Dec. 31, 2020

Schedule of change in the fair value of the derivative warrant liabilities

The following table presents the changes in the liability for warrants on convertible preferred stock during the three months ended March 31, 2021 (in thousands):

​

​	​	​	​	​
​		Convertible Preferred Warrant Warrant Stock
Balance as of December 31, 2020	​	$	95,342	​
Change in fair value of warrants	​	​	66,397	​
Exercised warrants	​	​	(253)	​
Balance as of March 31, 2021	​	$	161,486	​

Schedule of quantitative information regarding Level 3 fair value measurements inputs as their measurement dates

The key assumptions used for the valuation of the preferred stock warrant liabilities upon remeasurement were as follows:

​

​	​	​	​	​	​
​	​	Three Months Ended March 31,
​		2021		2020	​
Volatility	​	65.0	%	75.0	%
Risk-free interest rate	​	0.1	%	0.3	%
Expected term (in years)	​	1.2	​	2.3	​
Dividend yield	​	—	%	—	%
Discount for lack of marketability	​	6.8	%	40.0	%

Star Peak Energy Transition Corp [Member]

Summary of gross holding losses and fair value of held-to-maturity securities

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Fair Value Measured as of March 31,2021

​

Level 1

Level 2

Level 3

Total

Assets

​

​

​

​

​

​

Investments held in Trust Account - U.S. Treasury Securities

​

$

383,585,733

​

$

—

​

$

—

​

$

383,585,733

Liabilities:

​

​

​

​

​

​

​

​

​

​

​

​

Warrant liabilities - public warrants

​

​

171,878,063

​

​

—

​

​

—

​

​

171,878,063

Warrant liabilities - private warrants

​

​

—

​

​

—

​

​

104,995,656

​

​

104,995,656

Total fair value

​

$

555,463,796

​

$

—

​

$

104,995,656

​

$

660,459,452

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Fair Value Measured as of December 31, 2020

​

Level 1

Level 2

Level 3

Total

Assets

​

​

​

​

Investments held in Trust Account - U.S. Treasury Securities

​

$

383,721,747

​

$

—

​

$

—

​

$

383,721,747

Liabilities:

​

​

​

​

Warrant liabilities - public warrants

​

64,339,997

​

—

​

—

​

64,339,997

Warrant liabilities - private warrants

​

—

​

—

​

56,751,981

​

56,751,981

Total fair value

​

$

448,061,744

​

$

—

​

$

56,751,981

​

$

504,813,725

Schedule of change in the fair value of the derivative warrant liabilities

​

​	​	​	​
Warrant liabilities at December 31, 2020		$	121,091,978
Change in fair value of warrant liabilities	​		155,781,741
Warrant liabilities at March 31, 2021	​	$	276,873,719

The change in the fair value of the derivative warrant liabilities for the year ended December 31, 2020 is summarized as follows:

​

​	​	​	​
Warrant liabilities at January 1, 2020		$	—
Issuance of Public and Private Warrants	​	​	11,822,148
Warrant liabilities at September 30, 2020	​	$	11,822,148
Change in fair value of warrant liabilibites	​	​	109,269,830
Warrant liabilities at December 31, 2020	​	$	121,091,978

Schedule of quantitative information regarding Level 3 fair value measurements inputs as their measurement dates

​

​	​	​	​	​
​		As of March 31, 2021
Exercise price	​	$	11.50	​
Stock Price	​	$	20.58	​
Term (in years)	​		5.09	​
Volatility	​		15.00	%
Risk-free interest rate	​		0.94	%
Dividend yield	​		—	​
Probability of completing a Business Combination	​		95.00	%
Discount for lack of marketability	​	​	1.5	%

​

​	​	​	​	​	​	​	​
​	​	As of December 31,		​	As of August 20, 2020 and		​
​		2020			September 30, 2020		​
Exercise price	​	$	11.50	​	$	11.50	​
Stock price	​	$	20.46	​	$	9.90	​
Term (in years)	​	​	5.33	​	​	5.58	​
Volatility	​	​	21.00	%	​	21.50	%
Risk-free interest rate	​	​	0.41	%	​	0.34	%
Dividend yield	​	​	—	​	​	—	​
Probability of completing a Business Combination	​	​	85.00	%	​	50.00	%
Discount for lack of marketability	​	​	3.00	%	​	4.00	%

X

- Definition

Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.

+ 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
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ 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
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258

+ Details

Name:	us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5B
-URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269825-111563

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5A
-URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=stem_StarPeakEnergyTransitionCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: