Parent company financial information (Condensed Financial Information for Bancorp (Parent Company Only)) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 72,577	$ 77,805	$ 83,089	$ 81,849
Deferred tax asset	45,172	50,673
Other assets	31,195	35,921
Total assets	3,079,058	2,468,029
Stockholders’ equity	369,652	336,774	315,483	188,715
Total liabilities and stockholders’ equity	3,079,058	2,468,029
Cascade Bancorp
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	1,253	2,272	$ 3,177	$ 127
Investment in subsidiary	360,426	328,771
Deferred tax asset	6,338	4,624
Other assets	1,635	1,107
Total assets	369,652	336,774
Stockholders’ equity	369,652	336,774
Total liabilities and stockholders’ equity	$ 369,652	$ 336,774