Acquisitions and FDIC Indemnification Asset (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Business Acquisition [Line Items]
Beginning balance	$ 9,222	$ 14,525	$ 10,085	$ 17,118	$ 17,118
Discount accretion	0	(5)	0	(37)	0
Disposals	(1,677)	(1,726)	(2,540)	(4,287)
ASC 310-30 Loans	7,545	12,794	7,545	12,794	10,085
Commercial Loan [Member]
Business Acquisition [Line Items]
Beginning balance	7,337	11,519	7,676	13,654	13,654
Discount accretion	0	0	0	(24)
Disposals	(1,569)	(1,382)	(1,908)	(3,493)
ASC 310-30 Loans	5,768	10,137	5,768	10,137
Consumer Loan [Member]
Business Acquisition [Line Items]
Beginning balance	1,885	3,006	2,409	3,464	3,464
Discount accretion	0	(5)	0	(13)
Disposals	(108)	(344)	(632)	(794)
ASC 310-30 Loans	$ 1,777	$ 2,657	$ 1,777	$ 2,657