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Income Taxes (Tables)

6 Months Ended

Jun. 30, 2017

Income Tax Disclosure [Abstract]

Income Tax Expense From Continuing Operations And The Effective Tax Rate

The following table presents income tax expense and the effective tax rate:

	Three Months Ended June 30,								Six Months Ended June 30,
	2017				2016				2017				2016
	(Dollars in thousands)
Income tax expense	$	36,772			$	35,907			$	67,909			$	69,535
Effective tax rate	23		%		24		%		22		%		24		%

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Schedule of Effective Income Tax Rate and Expenses [Table Text Block]

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