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v3.25.2

Junior Subordinated Debt - Summary of Terms and Recorded Balance of Subordinated Debenture (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Subordinated Borrowing [Line Items] |  |
Recorded Book Value | $ 101,264 | $ 101,191
Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Face Value | 98,889 |
Recorded Book Value | 101,264 | 101,191
TriCo Cap Trust I | Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Face Value | $ 20,619 |
Coupon Rate (Variable) 3 mo. SOFR + | 3.05% |
Current Coupon Rate | 7.57% |
Recorded Book Value | $ 20,619 | 20,619
TriCo Cap Trust II | Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Face Value | $ 20,619 |
Coupon Rate (Variable) 3 mo. SOFR + | 2.55% |
Current Coupon Rate | 7.09% |
Recorded Book Value | $ 20,619 | 20,619
North Valley Trust II | Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Face Value | $ 6,186 |
Coupon Rate (Variable) 3 mo. SOFR + | 3.25% |
Current Coupon Rate | 7.79% |
Recorded Book Value | $ 5,774 | 5,713
North Valley Trust III | Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Face Value | $ 5,155 |
Coupon Rate (Variable) 3 mo. SOFR + | 2.80% |
Current Coupon Rate | 7.34% |
Recorded Book Value | $ 4,625 | 4,571
North Valley Trust IV | Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Face Value | $ 10,310 |
Coupon Rate (Variable) 3 mo. SOFR + | 1.33% |
Current Coupon Rate | 5.91% |
Recorded Book Value | $ 8,003 | 7,863
VRB Subordinated | Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Face Value | $ 16,000 |
Coupon Rate (Variable) 3 mo. SOFR + | 3.52% |
Current Coupon Rate | 9.11% |
Recorded Book Value | $ 16,700 | 16,799
VRB Subordinated - 5% | Subordinated debt |  |
Subordinated Borrowing [Line Items] |  |
Interest rate | 5.00% |
Face Value | $ 20,000 |
Current Coupon Rate | 5.00% |
Recorded Book Value | $ 24,924 | $ 25,007

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