Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of Debt

Long-term Debt consisted of the following:

			December 31,
	(in thousands)		2018			2017
4.650% Senior Notes due 2024:			$	500,000		$	500,000
6.000% Senior Notes due 2028:		300,000,000	300,000			—
Term Loan Facility			—			300,000
Fair value of interest rate swaps on $200 million of principal			(5,600		)	(2,990		)
Unamortized debt issuance costs			(7,820		)	(4,698		)
Revolving Credit Facility			—			—
Long-term Debt			$	786,580		$	792,312