Loans Held for Investment Accretable Yield Roll Forward (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Accretable yield on purchased credit impaired
Balance at the beginning of period	$ 1,403
Accretable yield at acquisition	602
Accretion	(284)
Disposals and other	(110)
Change in accretable yield	149
Balance at the end of period	1,760
Canyon National
Accretable yield on purchased credit impaired
Balance at the beginning of period	1,351
Accretable yield at acquisition	0
Accretion	(164)
Disposals and other	0
Change in accretable yield	0
Balance at the end of period	1,187
Palm Desert National
Accretable yield on purchased credit impaired
Balance at the beginning of period	52
Accretable yield at acquisition	0
Accretion	0
Disposals and other	(52)
Change in accretable yield	0
Balance at the end of period	0
IDPK
Accretable yield on purchased credit impaired
Balance at the beginning of period	0
Accretable yield at acquisition	602
Accretion	(120)
Disposals and other	(58)
Change in accretable yield	149
Balance at the end of period	$ 573