| Cover Page | Oct. 10, 2020 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 10, 2020 |
| Entity Registrant Name | TRISTATE CAPITAL HOLDINGS, INC. |
| Entity Incorporation, State or Country Code | PA |
| Entity File Number | 001-35913 |
| Entity Tax Identification Number | 20-4929029 |
| Entity Address, Address Line One | One Oxford Centre |
| Entity Address, Address Line Two | 301 Grant Street, Suite 2700 |
| Entity Address, City or Town | Pittsburgh, |
| Entity Address, State or Province | PA |
| City Area Code | (412) |
| Local Phone Number | 304-0304 |
| Entity Address, Postal Zip Code | 15219 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001380846 |
| Common Stock | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common Stock, no par value |
| Trading Symbol | TSC |
| Security Exchange Name | NASDAQ |
| Series A depositary share | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Depositary Shares, Each Representing a 1/40th Interest in a Share of 6.75% Fixed-to-Floating Rate Series A Non-Cumulative Perpetual Preferred Stock |
| Trading Symbol | TSCAP |
| Security Exchange Name | NASDAQ |
| Series B depositary share | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Depositary Shares, Each Representing a 1/40th Interest in a Share of 6.375% Fixed-to-Floating Rate Series B Non-Cumulative Perpetual Preferred Stock |
| Trading Symbol | TSCBP |
| Security Exchange Name | NASDAQ |
