v3.26.1
Form N-1A Cover
Mar. 27, 2026
Prospectus [Line Items]  
Document Type 497
Amendment Flag false
Registrant Name NEUBERGER BERMAN ADVISERS MANAGEMENT TRUST
Entity Central Index Key 0000736913
Entity Investment Company Type N-1A
Document Period End Date Mar. 27, 2026
Prospectus Date May 01, 2025