v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
Apr. 30, 2026
Entity Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Entity File Number 1-43038  
Entity Registrant Name PINNACLE FINANCIAL PARTNERS, INC.  
Entity Incorporation, State or Country Code GA  
Entity Tax Identification Number 39-3738880  
Entity Address, Address Line One 3400 Overton Park Drive  
Entity Address, City or Town Atlanta,  
Entity Address, State or Province GA  
Entity Address, Postal Zip Code 30339  
City Area Code 706  
Local Phone Number 641-6500  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   151,106,812
Entity Central Index Key 0002082866  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Document Transition Report false  
Common Stock    
Entity Information [Line Items]    
Title of 12(b) Security Common Stock, $1.00 Par Value  
Trading Symbol PNFP  
Security Exchange Name NYSE  
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series A    
Entity Information [Line Items]    
Title of 12(b) Security Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series A  
Trading Symbol PNFP - PrA  
Security Exchange Name NYSE  
Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series B    
Entity Information [Line Items]    
Title of 12(b) Security Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series B  
Trading Symbol PNFP - PrB  
Security Exchange Name NYSE  
Depositary Shares, each representing 1/40 interest in a Share of 6.75% Fixed-Rate Non-Cumulative Perpetual Preferred Stock Series C    
Entity Information [Line Items]    
Title of 12(b) Security Depositary Shares, each representing 1/40 interest in a Share of 6.75% Fixed-Rate Non-Cumulative Perpetual Preferred Stock Series C  
Trading Symbol PNFP - PrC  
Security Exchange Name NYSE