Parent company financial information (Condensed Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income:
Interest income	$ 20,217	$ 20,841	$ 19,819	$ 19,510	$ 19,745	$ 19,313	$ 16,212	$ 12,104	$ 80,387	$ 67,374	$ 50,985
Expenses:
Loss before income taxes and equity in undistributed net losses of subsidiary	9,445	7,725	7,656	8,266	8,022	4,397	(9,743)	1,239	33,092	3,915	699
Credit for income taxes	(3,878)	(2,626)	(2,861)	(3,148)	(2,982)	(1,965)	5,065	(296)	(12,513)	(178)	50,146
Net income	$ 5,567	$ 5,099	$ 4,795	$ 5,118	$ 5,040	$ 2,432	$ (4,678)	$ 943	20,579	3,737	50,845
Comprehensive income									19,365	6,608	47,125
Cascade Bancorp
Income:
Interest income									5	10	5
Expenses:
Administrative									2,619	1,347	1,031
Other									378	3,217	202
Total expenses									2,997	4,564	1,233
Loss before income taxes and equity in undistributed net losses of subsidiary									(2,992)	(4,554)	(1,228)
Credit for income taxes									1,154	2,053	1,797
Gain (loss) before equity in undistributed net losses of subsidiary									(1,838)	(2,501)	569
Equity in undistributed net income of subsidiary									22,417	6,238	50,276
Net income									20,579	3,737	50,845
Comprehensive income									$ 19,365	$ 6,608	$ 47,125