Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Long-Term Debt Instrument

Long-term debt at September 30, 2015 and December 31, 2014 consisted of the following:

(in thousands)	September 30, 2015		December 31, 2014
Current portion of long-term debt:
Current portion of 5-year term loan facility expires 2019	$	41,250	$	20,625
5.370% senior notes, Series D, quarterly interest payments, balloon due 2015	—		25,000
Total current portion of long-term debt	41,250		45,625
Long-term debt:
Note agreements:
5.660% senior notes, Series C, semi-annual interest payments, balloon due 2016	25,000		25,000
4.500% senior notes, Series E, quarterly interest payments, balloon due 2018	100,000		100,000
4.200% senior notes, semi-annual interest payments, balloon due 2024	498,589		498,471
Total notes	623,589		623,471
Credit agreements:
5-year term-loan facility, periodic interest and principal payments, currently LIBOR plus 1.375%, expires May 20, 2019	495,000		529,375
5-year revolving-loan facility, periodic interest payments, currently LIBOR plus 1.175%, plus commitment fees of 0.20%, expires May 20, 2019	—		—
Revolving credit loan, quarterly interest payments, LIBOR plus up to 1.40% and availability fee up to 0.25%, expires December 31, 2016	—		—
Total credit agreements	495,000		529,375
Total long-term debt	1,118,589		1,152,846
Current portion of long-term debt	41,250		45,625
Total debt	$	1,159,839	$	1,198,471