Debt (Tables)

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Long-term debt

Debt consisted of the following:

		March 31, 2017
(in thousands)	Maturity	Gross			Unamortized Debt Issuance Costs			Net Carrying Amount
Amended Revolving Credit Facility	2019 - 2020		325,000		$	-			325,000
Term Loan	2017		250,000			(33	)		249,967
2.75% Senior Notes	2019		499,068			(1,937	)		497,131
2.80% Senior Notes	2020		598,704			(3,131	)		595,573
3.50% Senior Notes	2022		399,085			(2,837	)		396,248
3.90% Senior Notes	2024		497,201			(3,033	)		494,168
3.95% Senior Notes	2025		499,224			(3,752	)		495,472
Total debt			3,068,282			(14,723	)		3,053,559
Current portion of debt			(250,000	)		33			(249,967	)
Debt (less current portion)		$	2,818,282		$	(14,690	)	$	2,803,592
Fair value of debt *								$	3,108,663
		December 31, 2016
(in thousands)	Maturity	Gross			Unamortized Debt Issuance Costs			Net Carrying Amount
Amended Revolving Credit Facility	2019 - 2020		475,000		$	-			475,000
Term Loan	2017		250,000			(68	)		249,932
2.75% Senior Notes	2019		498,979			(2,124	)		496,855
2.80% Senior Notes	2020		598,602			(3,378	)		595,224
3.50% Senior Notes	2022		399,040			(2,975	)		396,065
3.90% Senior Notes	2024		497,110			(3,133	)		493,977
3.95% Senior Notes	2025		499,200			(3,867	)		495,333
Total debt			3,217,931			(15,545	)		3,202,386
Current portion of debt			(250,000	)		68			(249,932	)
Debt (less current portion)		$	2,967,931		$	(15,477	)	$	2,952,454
Fair value of debt *								$	3,254,862
*The fair value of the Senior Notes was estimated using level 2 inputs comprised of quoted prices in active markets, market indices and interest rate measurements for debt with similar remaining maturity.