Loans Held for Investment Purchased Credit Impaired Loans (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Loans Held for Investment
Total purchase credit impaired	$ 5,776
Commercial and industrial
Loans Held for Investment
Total purchase credit impaired	634
Commercial owner occupied
Loans Held for Investment
Total purchase credit impaired	2,870
Commercial non-owner occupied
Loans Held for Investment
Total purchase credit impaired	2,180
One-to-four family
Loans Held for Investment
Total purchase credit impaired	92
Canyon National
Loans Held for Investment
Total purchase credit impaired	1,572
Canyon National | Commercial and industrial
Loans Held for Investment
Total purchase credit impaired	94
Canyon National | Commercial owner occupied
Loans Held for Investment
Total purchase credit impaired	535
Canyon National | Commercial non-owner occupied
Loans Held for Investment
Total purchase credit impaired	943
Canyon National | One-to-four family
Loans Held for Investment
Total purchase credit impaired	0
Palm Desert National
Loans Held for Investment
Total purchase credit impaired	0
Palm Desert National | Commercial and industrial
Loans Held for Investment
Total purchase credit impaired	0
Palm Desert National | Commercial owner occupied
Loans Held for Investment
Total purchase credit impaired	0
Palm Desert National | Commercial non-owner occupied
Loans Held for Investment
Total purchase credit impaired	0
Palm Desert National | One-to-four family
Loans Held for Investment
Total purchase credit impaired	0
IDPK
Loans Held for Investment
Total purchase credit impaired	4,204
IDPK | Commercial and industrial
Loans Held for Investment
Total purchase credit impaired	540
IDPK | Commercial owner occupied
Loans Held for Investment
Total purchase credit impaired	2,335
IDPK | Commercial non-owner occupied
Loans Held for Investment
Total purchase credit impaired	1,237
IDPK | One-to-four family
Loans Held for Investment
Total purchase credit impaired	$ 92