| Component: (Network and Table) | |
|---|---|
| Network | 41802 - Disclosure - Fair Value Measurements - Reconcoliation of the Beginning and Ending Balance of Financial Assets Measured At Fair Value On Recurring Basis Using Level 3 Inputs (Details) (http://www.cobizfinancial.com/role/DisclosureFairValueMeasurementsReconcoliationOfBeginningAndEndingBalanceOfFinancialAssetsMeasuredAtFairValueOnRecurringBasisUsingLevel3InputsDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001028734 (http://www.sec.gov/CIK) |
| Fair Value Measurements | Period [Axis] | |
|---|---|---|
2016-01-01 - 2016-12-31 | 2015-01-01 - 2015-12-31 | |
Fair Value Measurements | ||
Reconciliation of Level 3 inputs | ||
Beginning balance | ||
Transfers and purchases | ||
Net accretion | ||
Sales/calls/maturities | ( | |
Unrealized gain (loss) included in comprehensive income | ( | |
Ending balance | 5,810,000 | |