Income Taxes (Tables)

9 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Schedule of Income Tax Expense and Effective Tax Rate

The following table presents the income tax expense and the effective tax rate for the three and nine months ended September 30, 2019 and 2018:

($ in thousands)	Three Months Ended September 30,								Nine Months Ended September 30,
	2019			2018			% Change		2019			2018			% Change
Income before income taxes	$	206,367		$	204,865		1	%	$	624,635		$	613,641		2	%
Income tax expense	$	34,951		$	33,563		4	%	$	138,815		$	82,958		67	%
Effective tax rate	16.9		%	16.4		%			22.2		%	13.5		%