DEBT (Table)

12 Months Ended

Dec. 31, 2017

Debt Instruments [Abstract]

Summary of Debt

Debt consists of the following as of December 31:

(In thousands)	2017	2017	2016	2016
	Carrying Value	Estimated Fair Value	Carrying Value	Estimated Fair Value
5.51% Senior notes due 2017	—	—	150,000	154,509
3.84% Senior notes due 2021	100,000	102,472	100,000	102,463
3.70% Senior notes due 2023	225,000	228,783	225,000	226,946
3.85% Senior notes due 2025	100,000	102,164	100,000	100,338
4.24% Senior notes due 2026	200,000	208,873	200,000	203,592
4.05% Senior notes due 2028	75,000	76,997	75,000	74,630
4.11% Senior notes due 2028	100,000	103,226	100,000	99,876
Other debt	150	150	668	668
Total debt	800,150	822,665	950,668	963,022
Debt issuance costs, net	(831)	(831)	(984)	(984)
Unamortized interest rate swap proceeds	14,820	14,820	16,614	16,614
Total debt, net	814,139	836,654	966,298	978,652
Less: current portion of long-term debt and short-term debt	150	150	150,668	150,668
Total long-term debt	$813,989	$836,504	$815,630	$827,984

Aggregate Maturities of Debt

Aggregate maturities of debt are as follows:

(In thousands)
2018	$	150
2019	—
2020	—
2021	100,000
2022	—
Thereafter	700,000
Total	$	800,150