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Cover Page
 12 Months Ended
Mar. 31, 2023
Document Information [Line Items]  
Document Type S-1
Amendment Flag false
Entity Registrant Name NEXTRACKER INC.
Entity Central Index Key 0001852131
Entity Incorporation, State or Country Code DE
Entity Primary SIC Number 3990
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Tax Identification Number 36-5047383
Entity Address, Address Line One 6200 Paseo Padre Parkway
Entity Address, City or Town Fremont
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94555
City Area Code 510
Local Phone Number 270-2500
Business Contact [Member]  
Document Information [Line Items]  
Contact Personnel Name Léah Schlesinger, Esq.
Entity Address, Address Line One 6200 Paseo Padre Parkway
Entity Address, City or Town Fremont
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94555
City Area Code 510
Local Phone Number 270-2500