Fair Values of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Estimated Fair Value of Outstanding Debt Balances

The estimated fair value of the Company’s outstanding debt balances as of June 30, 2019 and December 31, 2018 is set forth below (in thousands):

	June 30, 2019				December 31, 2018
	Carrying		Fair		Carrying		Fair
	Value		Value		Value		Value
3.95% Senior Notes	$	525,000	$	526,235	$	525,000	$	482,488
4.97% Series A Senior Notes		300,000		306,592		300,000		300,043
4.27% Series B Senior Notes		300,000		305,603		300,000		293,900
Total debt	$	1,125,000	$	1,138,430	$	1,125,000	$	1,076,431