Other Real Estate (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Other Real Estate, Foreclosed Assets, and Repossessed Assets [Abstract]
Other real estate	$ 64,346		$ 64,346		$ 85,472
Loans foreclosed and transferred to other real estate			23,900	$ 35,500
Foreclosed real estate expense, net	4,503	$ 9,074	18,350	18,818
Write-downs to net realizable value and losses resulting from sales transactions			14,864	$ 16,734
Consumer mortgages	$ 6,200		$ 6,200		$ 12,800