Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Investments, All Other Investments [Abstract]

Summary of Carrying Amounts and Estimated Fair Values of Other Financial Instruments

The following table summarizes the carrying amounts and estimated fair values of our other financial instruments at June 30, 2019:

	Carrying Amount		Fair Value
	(Dollars in thousands)
Assets:
Cash and cash equivalents	$	111,341	$	111,341
Liabilities:
Bank debt	$	1,361,402	$	1,361,402
5½% Senior Notes	300,000		301,404
4¾% Senior Notes	300,000		303,672
3¼% Senior Notes	739,245		766,841
Derivative instruments (accrued and other liabilities)	4,571		4,571