Recent Accounting Pronouncements (Tables)

9 Months Ended

Sep. 30, 2018

New Accounting Pronouncements And Changes In Accounting Principles [Abstract]

Summary of Adjustments Made to Condensed Consolidated Statements of Income Due to Adoption of New Accounting Standards

The adjustments made to the Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 are as follows:

	For the Three Months Ended September 30, 2017						For the Nine Months Ended September 30, 2017
(Dollars in thousands)	Previously Reported		Effect of Change		As Adjusted		Previously Reported		Effect of Change		As Adjusted
Operating income	$	43,793		1,596	$	45,389	$	108,475		4,788	$	113,263