DEBT (Tables)

6 Months Ended

Jun. 30, 2017

Schedule Of Debt Outstanding

Debt outstanding as of June 30, 2017 and December 31, 2016 consists of the following (in thousands):

	June 30, 2017			December 31, 2016
$900.0 Million Revolving Credit Facility, principal due at    maturity in July 2020; interest payable periodically at    variable interest rates. The weighted average rate at    June 30, 2017 and December 31, 2016 was 2.6% and 2.2%,    respectively.	$	411,000		$	435,000
Term Loan, scheduled principal payments through maturity in    July 2020; interest payable periodically at variable interest    rates. The rate at June 30, 2017 and December 31, 2016    was 2.7% and 2.3%, respectively.  Unamortized debt    issuance costs amounted to $0.4 million at both    June 30, 2017 and December 31, 2016.		90,000			95,000
4.625% Senior Notes, principal due at maturity in May 2023;    interest payable semi-annually in May and November at    4.625%. Unamortized debt issuance costs amounted to    $3.6 million and $3.9 million at June 30, 2017 and    December 31, 2016, respectively.		350,000			350,000
4.125% Senior Notes, principal due at maturity in April 2020;    interest payable semi-annually in April and October at    4.125%. Unamortized debt issuance costs amounted to    $2.3 million and $2.7 million at June 30, 2017 and    December 31, 2016, respectively.		325,000			325,000
5.0% Senior Notes, principal due at maturity in October 2022;    interest payable semi-annually in April and October at 5.0%.    Unamortized debt issuance costs amounted to $2.5 million    and $2.8 million at June 30, 2017 and December 31, 2016,    respectively.		250,000			250,000
Total debt		1,426,000			1,455,000
Unamortized debt issuance costs		(8,804	)		(9,831	)
Current portion of long-term debt		(10,000	)		(10,000	)
Long-term debt, net	$	1,407,196		$	1,435,169

Schedule of Principal Payments

Scheduled principal payments as of June 30, 2017 for the remainder of 2017, the next four years, and thereafter were as follows (in thousands):

2017 (remainder)	$	5,000
2018		10,000
2019		15,000
2020		796,000
2021		—
Thereafter		600,000
Total debt	$	1,426,000