Business Combinations (Tables)

3 Months Ended

Mar. 31, 2015

Business Acquisition [Line Items]

Schedule of pro forma information from acquisition

The following schedule includes pro forma results for the periods ended December 31, 2014 and 2013 as if the CFS and Community acquisitions had occurred as of the beginning of the comparable prior annual reporting period.

	2014		2013
Total revenue (net interest income plus other income)	$	263,070	$	253,668
Net income	$	61,572	$	39,979
Net income available to common shareholders	$	61,572	$	37,599
Earnings per share:
Basic	$	1.63	$	0.98
Diluted	$	1.61	$	0.97

Merger with Community Bancshares, Inc.

Business Acquisition [Line Items]

Schedule of preliminary valuations of the fair value of assets acquired and liabilities assumed

Based on preliminary valuations of the fair value of tangible and intangible assets acquired and liabilities assumed, which are based on assumptions that are subject to change, the purchase price for the Community acquisition is detailed in the following table. Prior to the end of the one year measurement period for finalizing the purchase price allocation, if information becomes available which would indicate adjustments are required to the purchase price allocation, such adjustments will be included in the purchase price allocation retrospectively.

	Fair Value
Cash and cash equivalents	$	4,124
Interest -bearing time deposits	16,526
Investment Securities, available for sale	76,807
Loans	145,064
Premises and equipment	3,610
Federal Home Loan Bank stock	1,950
Interest receivable	767
Cash surrender value of life insurance	3,266
Other real estate owned	6,662
Taxes, deferred and receivable	3,348
Other assets	167
Deposits	(228,424		)
Interest payable	(98		)
Other liabilities	(3,014		)
Net tangible assets acquired	30,755
Core deposit intangible	4,658
Goodwill	13,776
Purchase price	$	49,189