Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

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 March 31,
	2018			2017
	(Dollars in thousands)
Income tax expense	$	18,172		$	31,137
Effective tax rate	12		%	21		%