v3.26.1
Cover Page
6 Months Ended
Jun. 30, 2026
Cover [Abstract]  
Document Type 6-K
Document Period End Date Jun. 30, 2026
Entity Registrant Name NAVIGATOR HOLDINGS LTD
Entity Central Index Key 0001581804
Current Fiscal Year End Date --12-31
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2026
Amendment Flag false