| Cover | Nov. 15, 2021 |
| Entity Addresses [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 15, 2021 |
| Entity File Number | 001-39881 |
| Entity Registrant Name | NORTHERN GENESIS ACQUISITION CORP. III |
| Entity Central Index Key | 0001843249 |
| Entity Tax Identification Number | 86-1484719 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 4801 Main Street |
| Entity Address, Address Line Two | Suite 1000 |
| Entity Address, City or Town | Kansas City |
| Entity Address, State or Province | MO |
| Entity Address, Postal Zip Code | 64112 |
| City Area Code | (816) |
| Local Phone Number | 514-0324 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one share of common stock and one-quarter of one redeemable warrant | |
| Entity Addresses [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one share of common stock and one-quarter of one redeemable warrant |
| Trading Symbol | NGC.U |
| Security Exchange Name | NYSE |
| Common Stock, par value $0.0001 per share | |
| Entity Addresses [Line Items] | |
| Title of 12(b) Security | Common Stock, par value $0.0001 per share |
| Trading Symbol | NGC |
| Security Exchange Name | NYSE |
| Warrants, each whole warrant exercisable for one share of common stock at an exercise price of $11.50 per share | |
| Entity Addresses [Line Items] | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one share of common stock at an exercise price of $11.50 per share |
| Trading Symbol | NGC.WS |
| Security Exchange Name | NYSE |
| Former Address [Member] | |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | (816) 514-0324 |
