Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt at March 31, 2020 and December 31, 2019 consisted of the following:  

(in thousands)	March 31, 2020			December 31, 2019
Current portion of long-term debt:
Current portion of 5-year term loan facility expires 2022	$	40,000		$	40,000
Current portion of 5-year term loan facility expires 2023		18,750			15,000
Total current portion of long-term debt		58,750			55,000
Long-term debt:
Note agreements:
4.200% senior notes, semi-annual interest payments, net of the unamortized discount,    balloon due 2024	$	499,298		$	499,259
4.500% senior notes, semi-annual interest payments, net of the unamortized discount,    balloon due 2029		349,498			349,484
Total notes		848,796			848,743
Credit agreements:
5-year term-loan facility, periodic interest and principal payments, LIBOR plus up to    1.750%, expires June 28, 2022		280,000			290,000
5-year revolving-loan facility, periodic interest payments, LIBOR plus up to 1.500%, plus    commitment fees up to 0.250%, expires June 28, 2022		100,000			100,000
5-year term-loan facility, periodic interest and principal payments, LIBOR plus up to    1.750%, expires December 21, 2023		262,500			270,000
Total credit agreements		642,500			660,000
Debt issuance costs (contra)		(7,941	)		(8,400	)
Total long-term debt less unamortized discount and debt issuance costs		1,483,355			1,500,343
Current portion of long-term debt		58,750			55,000
Total debt	$	1,542,105		$	1,555,343