Other Real Estate Owned (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Covered OREO
Beginning balance	$ 6,368	$ 12,942
Acquired OREO	3,722	0
Transfer of balance to non-covered OREO	(3,431)
Transfers of loans	4,563	7,794
Capitalized improvements	0	0
Impairments	(454)	(3,242)
Dispositions	(7,941)	(10,428)
Other	(9)	(698)
Ending balance	2,818	6,368
Not Covered OREO
Beginning balance	28,104	39,945
Acquired OREO	6,250	0
Transfer of balance to non-covered OREO	3,431
Transfers of loans	10,372	8,529
Capitalized improvements	0	0
Impairments	(2,065)	(1,786)
Dispositions	(13,483)	(18,379)
Other	(25)	(205)
Ending balance	32,584	28,104
Total OREO
Beginning balance	34,472	52,887
Acquired OREO	9,972	0
Transfer of balance to non-covered OREO	0
Transfers of loans	14,935	16,323
Capitalized improvements	0	0
Impairments	(2,519)	(5,028)
Dispositions	(21,424)	(28,807)
Other	(34)	(903)
Ending balance	$ 35,402	$ 34,472