DEBT (Table)

12 Months Ended

Dec. 31, 2020

Debt Instruments [Abstract]

Summary of Debt

Debt consists of the following as of December 31:

(In thousands)	2020		2020		2019		2019
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
3.84% Senior notes due 2021	100,000		102,173		100,000		102,079
3.70% Senior notes due 2023	202,500		211,790		202,500		207,882
3.85% Senior notes due 2025	90,000		97,429		90,000		93,838
4.24% Senior notes due 2026	200,000		224,390		200,000		213,126
4.05% Senior notes due 2028	67,500		75,440		67,500		71,260
4.11% Senior notes due 2028	90,000		101,047		90,000		95,607
3.10% Senior notes due 2030	150,000		155,805		—		—
3.20% Senior notes due 2032	150,000		155,048		—		—
Total debt	1,050,000		1,123,122		750,000		783,792
Debt issuance costs, net	(1,147)		(1,147)		(594)		(594)
Unamortized interest rate swap proceeds (1)	9,439		9,439		11,233		11,233
Total debt, net	1,058,292		1,131,414		760,639		794,431
Less: current portion of long-term debt	100,000		100,000		—		—
Total long-term debt	$	958,292	$	1,031,414	$	760,639	$	794,431

Aggregate Maturities of Debt

Aggregate maturities of debt are as follows:

(In thousands)
2021	$	100,000
2022	—
2023	202,500
2024	—
2025	90,000
Thereafter	657,500
Total	$	1,050,000