Loans (Details) - Loans Sold - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total net gains on loan sales	$ 1,151	$ 925	$ 3,733	$ 2,846
Corporate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from sales	0	0	945	650
Total book value of loans sold	0	0	945	650
Total net gains on loan sales	0	0	0	0
1-4 family mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from sales	43,340	32,611	132,367	117,549
Loans originated with intent to sell	42,069	26,384	113,566	62,319
Loans held-for-investment	120	5,302	15,068	52,384
Total book value of loans sold	42,189	31,686	128,634	114,703
Total net gains on loan sales	$ 1,151	$ 925	$ 3,733	$ 2,846