Parent Company Financial Information - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Total assets	$ 1,899,739	$ 1,710,127
Liabilities
Junior subordinated debentures	10,438	13,233
Other Liabilities	14,385	8,592
Total liabilities	1,693,305	1,512,187
Shareholders' Equity
Common stock	165,517	164,196
Additional paid in capital	8,251	6,984
Retained earnings	32,200	24,772
Accumulated other comprehensive income	466	932
Total shareholders' equity	206,434	197,940	$ 126,427	$ 145,529
Total liabilities and shareholders' equity	1,899,739	1,710,127
Heritage Oaks Bancorp
Assets
Cash	6,034	6,642
Prepaid and other assets	2,077	2,122
Investment in subsidiary	208,916	202,565
Total assets	217,027	211,329
Liabilities
Junior subordinated debentures	10,438	13,233
Other Liabilities	155	156
Total liabilities	10,593	13,389
Shareholders' Equity
Preferred stock		1,056
Common stock	165,517	164,196
Additional paid in capital	8,251	6,984
Retained earnings	32,200	24,772
Accumulated other comprehensive income	466	932
Total shareholders' equity	206,434	197,940
Total liabilities and shareholders' equity	$ 217,027	$ 211,329