v3.25.4
Form N-1A Cover
Oct. 31, 2025
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name BBH TRUST
Entity Central Index Key 0001342947
Entity Investment Company Type N-1A
Document Period End Date Oct. 31, 2025
Prospectus Date Feb. 28, 2026