Other Real Estate - Changes and Gains, Net on Other Real Estate (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	[1]
Reconciliation Of Carrying Amount Of Real Estate Investments Roll Forward
Balance at beginning of period		$ 62,051	$ 78,828
Additions	[2]	4,498	8,668
Disposals		(14,430)	(14,587)
Write-downs		(2,161)	(3,019)
Balance at end of period		49,958	69,890
Gain, net on the sale of other real estate included in other real estate expense		$ 1,518	$ 3,445

[1] The changes and gains, net on other real estate for the six months ended June 30, 2016 include covered other real estate.

[2] Includes $475 thousand of other real estate acquired in the Reliance merger on April 7, 2017.