Reverse Recapitalization & Business Combinations - Common Stock (Details)				3 Months Ended
	Jun. 29, 2021 shares	Mar. 12, 2021 shares	Feb. 26, 2021 shares	Oct. 31, 2021 shares	Apr. 30, 2021 shares
Schedule Of Reverse Recapitalization [Line Items]
Common stock, shares outstanding, beginning balance (in shares)					22,961,032
Less surrender of Switchback Founder Shares	(9,000,000)	(9,000,000)
Common stock, shares outstanding, ending balance (in shares)			277,768,357	330,964,104
Common Stock, shares outstanding (in shares)			277,768,357	330,964,104
Recapitalization exchange ratio			0.9966
Switchback
Schedule Of Reverse Recapitalization [Line Items]
Common stock, shares outstanding, beginning balance (in shares)			217,761,738
Less surrender of Switchback Founder Shares			(984,706)
Common stock of switchback (in shares)			38,246,989
Shares issued in PIPE (in shares)			22,500,000
Merger and PIPE financing shares (in shares)			60,746,989
Legacy Chargepoint shares (in shares)			217,021,368
Common stock, shares outstanding, ending balance (in shares)			277,768,357
Additional earn back shares (in shares)			900,000
Common Stock, shares outstanding (in shares)			277,768,357
Recapitalization exchange ratio			0.9966
Switchback | Switchback
Schedule Of Reverse Recapitalization [Line Items]
Common stock, shares outstanding, beginning balance (in shares)			39,264,704
Less redemption of Switchback shares			(33,009)
Common Stock, shares outstanding (in shares)