Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2016

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, 2016:

	Carrying Amount		Fair Value
	(Dollars in thousands)
Assets:
Cash and cash equivalents	$	120,467	$	120,467
Liabilities:
Bank debt	$	1,146,012	$	1,146,012
5½% Senior Notes	300,000		310,875
5% Senior Notes	500,000		513,725
Interest rate swap agreements	858		858