CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fee Revenue and Other Income:
Information services payment and processing revenue	$ 70,805	$ 66,695	$ 60,688
Bank service fees	1,215	1,272	1,354
Gains on sales of securities	4,024	2,635	43
Other	528	536	739
Total fee revenue and other income	76,572	71,138	62,824
Interest Income:
Interest and fees on loans	32,110	35,525	39,515
Interest and dividends on securities:
Taxable	48	60	41
Exempt from federal income taxes	8,867	9,878	9,993
Interest on federal funds sold and other short-term investments	552	470	686
Total interest income	41,577	45,933	50,235
Interest Expense:
Interest on deposits	2,832	3,148	4,374
Total interest expense	2,832	3,148	4,374
Net interest income	38,745	42,785	45,861
Provision for loan losses	500	2,400	2,150
Net interest income after provision for loan losses	38,245	40,385	43,711
Total net revenue	114,817	111,523	106,535
Operating Expense:
Salaries and employee benefits	65,722	62,563	56,573
Occupancy	2,874	2,157	2,318
Equipment	3,810	3,516	3,525
Amortization of intangible assets	535	581	107
Other operating	11,145	11,516	12,506
Total operating expense	84,086	80,333	75,029
Income before income tax expense	30,731	31,190	31,506
Income tax expense	7,234	7,887	8,497
Net income	$ 23,497	$ 23,303	$ 23,009
Basic Earnings Per Share	$ 2.05	$ 2.05	$ 2.03
Diluted Earnings Per Share	$ 2.02	$ 2.02	$ 2.01