Other Real Estate Owned (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Real Estate Properties [Line Items]
Mortgage Loans in Process of Foreclosure, Amount	$ 18,900		$ 24,800
Covered
Beginning balance	22,982	$ 47,081
Additions	6,202	25,235
Sales	(17,539)	(27,756)
Writedowns	(1,387)	(9,751)
Other Real Estate Covered Transfers	(2,106)	(5,537)
Ending balance	8,152	29,272
Noncovered
Beginning balance	70,454	36,898
Additions	38,022	16,901
Sales	(46,612)	(23,526)
Writedowns	(2,263)	(4,215)
Other Real Estate Non Covered Transfers	2,106	5,537
Ending balance	61,707	43,186
Total
Beginning balance	93,436	83,979
Additions	44,224	42,136
Sales	(64,151)	(51,282)
Writedowns	(3,650)	(13,966)
Other Real Estate Transfers	0	0
Ending balance	69,859	72,458
Mortgage
Total
Beginning balance	29,048
Ending balance	$ 15,768
1st Financial
Covered
Additions		0
Noncovered
Additions		11,591
Total
Additions		$ 11,591