Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2013

Long-Term Debt

Outstanding long-term debt and capital lease obligations

	June 30, 2013		December 31, 2012
Revolving Credit Facility	$	-	$	-
4.875% Senior Notes due 2021(1), effective interest rate of 4.972%		497,349		497,173
4.625% Senior Notes due 2021(2), effective interest rate of 4.649%		299,572		299,545
3.800% Senior Notes due 2022(3), effective interest rate of 3.845%		298,963		298,916
3.850% Senior Notes due 2023(4), effective interest rate of 3.851%		299,976		-
Capital leases		131		322
Total debt and capital lease obligations		1,395,991		1,095,956
Current portion of long-term debt		69		222
Long-term debt, less current portion	$	1,395,922	$	1,095,734
(1) Net of unamortized original issuance discount of$2.7 million as of June 30, 2013, and $2.8 million as of December 31, 2012.
(2) Net of unamortized original issuance discount of $0.4 million as of June 30, 2013, and $0.5 million as of December 31, 2012.
(3) Net of unamortized original issuance discount of$1.0 million as of June 30, 2013, and $1.1 million as of December 31, 2012.
(4) Net of unamortized original issuance discount of less than $0.1 million as of June 30, 2013.