Income Taxes (Tables)

6 Months Ended

Jun. 30, 2014

Income Tax Disclosure [Abstract]

Summary of Differences in Taxes Computed at Statutory Rate

Following is a summary of the major items comprising the differences in taxes from continuing operations computed at the federal statutory rate and as recorded in the consolidated statement of income for the three and six months ended June 30:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(dollars in thousands)	2014			2013			2014			2013
Provision at statutory rate of 35%	$	9,251		$	14,774		$	21,764		$	26,792
Tax-exempt income		(3,422	)		(3,092	)		(6,559	)		(5,989	)
State income taxes		182			1,156			825			2,372
State statutory rate change		(218	)		1,257			904			1,257
Interim period effective rate adjustment		2,149			(358	)		124			(223	)
Other, net		(284	)		(3	)		(158	)		(83	)
Income tax expense	$	7,658		$	13,734		$	16,900		$	24,126
Effective tax rate		29.0	%		32.5	%		27.2	%		31.5	%

Summary of Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

(dollars in thousands)	2014		2013
Balance at January 1	$	3,847	$	3,953
Additions (reductions) based on tax positions related to the current year		21		8
Balance at June 30	$	3,868	$	3,961