Regulatory Matters (Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Cascade Bancorp
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Actual capital amount Tier 1 leverage (to average assets)	$ 163,920	$ 142,937
Actual capital amount Tier 1capital (to risk-weighted assets)	163,920	142,937
Actual capital amount total capital (to risk-weighted assets)	184,991	156,787
Actual Ratio Tier 1 leverage (to average assets)	7.50%	10.50%
Actual Ratio Tier 1 capital (to risk-weighted assets)	9.70%	13.00%
Actual Ratio Total capital (to risk-weighted assets)	11.00%	14.30%
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1 leverage (to average assets)	88,005	54,527
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1capital (to risk-weighted assets)	67,385	44,021
Regulatory minimum to be "adequately capitalized" total capital (to risk-weighted assets)	134,771	88,041
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 1capital (to risk-weighted assets)	4.00%	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)	110,007	68,159
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital amount Tier 1capital (to risk-weighted assets)	101,078	66,031
Regulatory minimum to be "well capitalized" under prompt corrective action provisions total capital amount (to risk-weighted assets)	168,464	110,052
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 1capital (to risk-weighted assets)	6.00%	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)	159,292	142,964
Actual capital amount Tier 1capital (to risk-weighted assets)	159,292	142,964
Actual capital amount total capital (to risk-weighted assets)	180,286	156,788
Actual Ratio Tier 1 leverage (to average assets)	7.30%	10.50%
Actual Ratio Tier 1 capital (to risk-weighted assets)	9.50%	13.00%
Actual Ratio Total capital (to risk-weighted assets)	10.70%	14.30%
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1 leverage (to average assets)	87,828	54,529
Regulatory minimum to be "adequately capitalized" Capital amount Tier 1capital (to risk-weighted assets)	67,137	43,939
Regulatory minimum to be "adequately capitalized" total capital (to risk-weighted assets)	134,274	87,879
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 1capital (to risk-weighted assets)	4.00%	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)	109,785	68,162
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Capital amount Tier 1capital (to risk-weighted assets)	100,705	65,909
Regulatory minimum to be "well capitalized" under prompt corrective action provisions total capital amount (to risk-weighted assets)	$ 167,842	$ 109,848
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 1capital (to risk-weighted assets)	6.00%	6.00%
Regulatory minimum to be "well capitalized" under prompt corrective action provisions Total capital Ratio (to risk-weighted assets)	10.00%	10.00%