Regulatory Matters (Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Cascade Bancorp
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Actual capital amount Tier 1 leverage (to average assets)	$ 217,907	$ 227,542
Actual capital amount to Tier 1 common (to risk-weighted assets)	217,907	227,542
Actual capital amount Tier 1 capital (to risk-weighted assets)	217,907	227,542
Actual capital amount total capital (to risk-weighted assets)	$ 242,780	$ 252,401
Actual ratio Tier 1 leverage (to average assets)	8.60%	9.40%
Actual ratio Tier 1 common (to risk-weighted assets)	10.40%	11.50%
Actual ratio Tier 1 capital (to risk-weighted assets)	10.40%	11.50%
Actual ratio Total capital (to risk-weighted assets)	11.60%	12.80%
Regulatory minimum to be adequately capitalized capital amount Tier 1 leverage (to average assets)	$ 100,857	$ 96,817
Regulatory minimum to be adequately capitalized capital amount Tier 1 common (to risk-weighted assets)	94,133	88,818
Regulatory minimum to be adequately capitalized capital amount Tier 1capital (to risk-weighted assets)	125,511	118,424
Regulatory minimum to be adequately capitalized total capital (to risk-weighted assets)	$ 167,348	$ 157,898
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%	4.50%
Regulatory minimum to be adequately capitalized ratio Tier 1capital (to risk-weighted assets)	6.00%	6.00%
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)	$ 126,072	$ 121,022
Regulatory minimum to be well capitalized under prompt corrective action provisions common equity Tier 1 (to risk-weighted assets)	135,970	128,292
Regulatory minimum to be well capitalized under prompt corrective action provisions capital amount Tier 1 capital (to risk-weighted assets)	167,348	157,898
Regulatory minimum to be well capitalized under prompt corrective action provisions total capital amount (to risk-weighted assets)	$ 209,185	$ 197,373
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%	6.50%
Regulatory minimum to be well capitalized under prompt corrective action provisions capital ratio Tier 1 capital (to risk-weighted assets)	8.00%	8.00%
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)	$ 213,514	$ 223,533
Actual capital amount to Tier 1 common (to risk-weighted assets)	213,514	223,533
Actual capital amount Tier 1 capital (to risk-weighted assets)	213,514	223,533
Actual capital amount total capital (to risk-weighted assets)	$ 238,387	$ 248,346
Actual ratio Tier 1 leverage (to average assets)	8.50%	9.30%
Actual ratio Tier 1 common (to risk-weighted assets)	10.20%	11.40%
Actual ratio Tier 1 capital (to risk-weighted assets)	10.20%	11.40%
Actual ratio Total capital (to risk-weighted assets)	11.40%	12.60%
Regulatory minimum to be adequately capitalized capital amount Tier 1 leverage (to average assets)	$ 100,663	$ 96,662
Regulatory minimum to be adequately capitalized capital amount Tier 1 common (to risk-weighted assets)	93,977	88,663
Regulatory minimum to be adequately capitalized capital amount Tier 1capital (to risk-weighted assets)	125,303	118,218
Regulatory minimum to be adequately capitalized total capital (to risk-weighted assets)	$ 167,070	$ 157,624
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%	4.50%
Regulatory minimum to be adequately capitalized ratio Tier 1capital (to risk-weighted assets)	6.00%	6.00%
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)	$ 125,829	$ 120,827
Regulatory minimum to be well capitalized under prompt corrective action provisions common equity Tier 1 (to risk-weighted assets)	135,745	128,069
Regulatory minimum to be well capitalized under prompt corrective action provisions capital amount Tier 1 capital (to risk-weighted assets)	167,070	157,624
Regulatory minimum to be well capitalized under prompt corrective action provisions total capital amount (to risk-weighted assets)	$ 208,838	$ 197,030
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%	6.50%
Regulatory minimum to be well capitalized under prompt corrective action provisions capital ratio Tier 1 capital (to risk-weighted assets)	8.00%	8.00%
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 minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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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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