Business Combinations (Narrative) (Details) (USD $)
12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended
Dec. 31, 2014
Oct. 18, 2013
Dec. 31, 2013
May 16, 2014
Business Acquisition [Line Items]        
Goodwill 80,082,000   $ 0  
Core Deposits        
Business Acquisition [Line Items]        
Core deposit intangible, useful life 10 years      
American West Bank        
Business Acquisition [Line Items]        
Deposits   25,485,000    
Premium paid on core deposits   2.00%    
Loans, net   1,635,000    
Consideration paid in cash ($8.43 per share)   2,800,000    
Cost incurred related to business acquisition     200,000  
American West Bank | Core Deposits        
Business Acquisition [Line Items]        
Core deposit intangible, useful life   10 years    
Home Federal Bank        
Business Acquisition [Line Items]        
Deposits       760,648,000
Consideration paid in cash ($8.43 per share)       122,163,000
Exercise price of right (in dollars per share)       $ 8.43
Number of securities called by each right (in shares)       1.6772
Cascade Bancorp common stock shares issued for Home Federal shares       24,309,131
Goodwill       80,082,000
Merger related charges 11,600,000