Income Taxes (Tables)

9 Months Ended

Sep. 30, 2014

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The following table presents income tax expense and the effective income tax rate for the quarters and nine months ended September 30, 2014 and 2013.

Income Tax Expense

(Dollar amounts in thousands)

	Quarters Ended   September 30,						Nine Months Ended   September 30,
	2014			2013			2014			2013
Income before income tax expense	$	27,098		$	54,282		$	80,076		$	99,348
Income tax expense:
Federal income tax expense	$	6,714		$	19,145		$	19,719		$	29,058
State income tax expense	1,835			5,814			5,644			10,149
Total income tax expense	$	8,549		$	24,959		$	25,363		$	39,207
Effective income tax rate	31.5		%	46.0		%	31.7		%	39.5		%