Debt outstanding as of June 30, 2015 and December 31, 2014 consists of the following (in thousands):


	June 30, 2015		December 31, 2014
$900.0 Million Revolving Credit Facility, principal due at maturity in December 2017 (extended to July 2020, as further described hereafter); interest payable periodically at variable interest rates. The weighted average rate at June 30, 2015 and December 31, 2014 was 2.0% and 1.9%, respectively.	$	563,000	$	525,000
4.625% Senior Notes, principal due at maturity in May 2023; interest payable semi-annually in May and November at 4.625%.		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%.		325,000		325,000

	$	1,238,000	$	1,200,000