v3.26.1
Form N-1A Cover
Nov. 30, 2025
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name NEW YORK LIFE INVESTMENTS FUNDS TRUST
Entity Central Index Key 0001469192
Entity Investment Company Type N-1A
Document Period End Date Nov. 30, 2025
Prospectus Date Mar. 30, 2026