Income Taxes (Tables)

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

The following table presents the provision for income taxes for the respective periods:

	Three Months Ended September 30,						Nine Months Ended September 30,
(dollars in thousands)	2018			2017			2018			2017
Provision for income taxes	$	8,692		$	21,249		$	7,357		$	16,841
Effective tax rate		12.8	%		30.7	%		14.5	%		29.4	%