Business Combination - Common Stock Issued (Details) - Ivanhoe Capital Acquisition Corp., Reverse Recapitalization [Member]	6 Months Ended
	Jun. 30, 2022 shares
Business Acquisition [Line Items]
Ivanhoe Class A common stock, outstanding prior to Business Combination (in shares)	27,600,000
Less: Redemption of Ivanhoe Class A common stock (in shares)	(22,455,850)
Ivanhoe Class A common stock, net of redemptions (in shares)	5,144,150
Ivanhoe Class B ordinary shares, converted to Class A Common Stock upon Closing (in shares)	6,900,000
Total Ivanhoe Class A Common Stock (in shares)	12,044,150
PIPE Investors - Class A Common Stock (in shares)	27,450,000
Old SES common and preferred shares (other than SES Founder Group) converted to Class A Common Stock (in shares)	236,221,766
Old SES Restricted Shares converted to restricted shares of Class A Common Stock (in shares)	2,273,727
SES Founder Group shares of common stock converted to shares of Class B Common Stock (in shares)	39,881,455
Founder Earn-Out Shares (Class B Common Stock) (in shares)	3,999,796
Earn-Out Shares (Class A Common Stock) (in shares)	23,691,182
Earn-Out Restricted Shares (Class A Common Stock) (in shares)	2,308,969
Total (in shares)	347,871,045
Less: Shares of Old SES outstanding prior to Business Combination and PIPE Financing (in shares)	(276,103,221)
Business Combination and PIPE Financing Shares (in shares)	71,767,824