Regulatory Matters (Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Cascade Bancorp
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Actual capital amount Tier 1 leverage (to average assets)	$ 206,851	$ 170,615
Actual capital amount to Tier 1 common (to risk-weighted assets)	206,851
Actual capital amount Tier 1 capital (to risk-weighted assets)	206,851	170,615
Actual capital amount total capital (to risk-weighted assets)	$ 230,471	$ 192,162
Actual Ratio Tier 1 leverage (to average assets)	9.10%	7.70%
Actual ratio Tier 1 common (to risk-weighted assets)	11.10%
Actual Ratio Tier 1 capital (to risk-weighted assets)	11.10%	9.90%
Actual Ratio Total capital (to risk-weighted assets)	12.40%	11.20%
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1 leverage (to average assets)	$ 91,445	$ 89,076
Regulatory minimum to be adequately capitalized capital amount Tier 1 common (to risk-weighted assets)	84,009
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1capital (to risk-weighted assets)	112,012	68,892
Regulatory minimum to be "adequately capitalized" total capital (to risk-weighted assets)	$ 149,349	$ 137,784
Regulatory minimum to be "adequately capitalized" Ratio Tier 1 leverage (to average assets)	4.00%	4.00%
Regulatory minimum to be adequately capitalized ratio Tier 1 common (to risk-weighted assets)	4.50%
Regulatory minimum to be "adequately capitalized" Ratio Tier 1capital (to risk-weighted assets)	6.00%	4.00%
Regulatory minimum to be "adequately capitalized" Ratio Total capital (to risk-weighted assets)	8.00%	8.00%
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital amount Tier 1 leverage (to average assets)	$ 114,306	$ 111,345
Regulatory minimum to be well capitalized under prompt corrective action provisions common equity Tier 1 (to risk-weighted assets)	121,346
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital amount Tier 1capital (to risk-weighted assets)	149,349	103,338
Regulatory minimum to be "well capitalized" under prompt corrective action provisions total capital amount (to risk-weighted assets)	$ 186,687	$ 172,230
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital Ratio Tier 1 leverage (to average assets)	5.00%	5.00%
Regulatory minimum to be well capitalized under prompt corrective action provisions capital ratio Tier 1 common (to risk-weighted assets)	6.50%
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital Ratio Tier 1capital (to risk-weighted assets)	8.00%	6.00%
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Total capital Ratio (to risk-weighted assets)	10.00%	10.00%
Bank of the Cascades
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Actual capital amount Tier 1 leverage (to average assets)	$ 203,761	$ 167,056
Actual capital amount to Tier 1 common (to risk-weighted assets)	203,761
Actual capital amount Tier 1 capital (to risk-weighted assets)	203,761	167,056
Actual capital amount total capital (to risk-weighted assets)	$ 227,399	$ 188,543
Actual Ratio Tier 1 leverage (to average assets)	8.90%	7.50%
Actual ratio Tier 1 common (to risk-weighted assets)	10.90%
Actual Ratio Tier 1 capital (to risk-weighted assets)	10.90%	9.70%
Actual Ratio Total capital (to risk-weighted assets)	12.20%	11.00%
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1 leverage (to average assets)	$ 91,306	$ 88,946
Regulatory minimum to be adequately capitalized capital amount Tier 1 common (to risk-weighted assets)	84,200
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1capital (to risk-weighted assets)	112,267	68,700
Regulatory minimum to be "adequately capitalized" total capital (to risk-weighted assets)	$ 149,689	$ 137,400
Regulatory minimum to be "adequately capitalized" Ratio Tier 1 leverage (to average assets)	4.00%	4.00%
Regulatory minimum to be adequately capitalized ratio Tier 1 common (to risk-weighted assets)	4.50%
Regulatory minimum to be "adequately capitalized" Ratio Tier 1capital (to risk-weighted assets)	6.00%	4.00%
Regulatory minimum to be "adequately capitalized" Ratio Total capital (to risk-weighted assets)	8.00%	8.00%
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital amount Tier 1 leverage (to average assets)	$ 114,132	$ 111,183
Regulatory minimum to be well capitalized under prompt corrective action provisions common equity Tier 1 (to risk-weighted assets)	121,622
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital amount Tier 1capital (to risk-weighted assets)	149,689	103,050
Regulatory minimum to be "well capitalized" under prompt corrective action provisions total capital amount (to risk-weighted assets)	$ 187,111	$ 171,750
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital Ratio Tier 1 leverage (to average assets)	5.00%	5.00%
Regulatory minimum to be well capitalized under prompt corrective action provisions capital ratio Tier 1 common (to risk-weighted assets)	6.50%
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital Ratio Tier 1capital (to risk-weighted assets)	8.00%	6.00%
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Total capital Ratio (to risk-weighted assets)	10.00%	10.00%

Tier One Common Equity

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Tier One Common Equity Required For Capital Adequacy

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Tier One Common Equity Required For Capital Adequacy To Average Assets

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Tier One Common Equity Required To Be Well Capitalized

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Tier One Common Equity Required To Be Well Capitalized To Average Assets

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Tier One Common Equity To Average Assets

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The amount of total capital as defined in the regulations.

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The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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Tier 1 Leverage Capital divided by average assets as defined in the regulations.

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Tier 1 Risk Based Capital as defined in the regulations.

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The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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