Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt [Abstract]

Summary Of Long-Term Debt

	December 31,
	2016				2015
	Long-term		Current		Long-term		Current
Senior Notes due May 2019	$	500,000	$	-	$	500,000	$	-
Senior Notes due December 2021		800,000		-		800,000		-
Term loan		-		-		305,000		20,000
Other		-		-		3,089		9,957
Total debt, gross		1,300,000		-		1,608,089		29,957
Unamortized debt issuance costs		(15,400)		-		(19,826)		-
Total debt, net	$	1,284,600	$	-	$	1,588,263	$	29,957

Schedule Of Maturities Of Long-Term Debt

2017	$	-
2018		-
2019		500,000
2020		-
2021		800,000
Thereafter		-
Total	$	1,300,000