Parent company financial information (Condensed Financial Information for Bancorp (Parent Company Only)) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]        
Cash and cash equivalents $ 83,089 $ 81,849 $ 113,028 $ 128,439
Deferred tax asset 66,126 50,068    
Other assets 30,169 11,418    
Total assets 2,341,137 1,406,219    
Stockholders' equity 315,483 188,715 140,775 132,881
Total liabilities and stockholders' equity 2,341,137 1,406,219    
Cascade Bancorp        
Condensed Financial Statements, Captions [Line Items]        
Cash and cash equivalents 3,177 127 119 512
Investment in subsidiary 307,568 186,580    
Deferred tax asset 3,614 1,820    
Other assets 1,124 188    
Total assets 315,483 188,715    
Stockholders' equity 315,483 188,715    
Total liabilities and stockholders' equity $ 315,483 $ 188,715