Financing (Tables)

12 Months Ended

Dec. 31, 2020

Financing

Outstanding financing facilities

	December 31,
		2020		2019
Revolving Credit Facility	$	—	$	261,000
4.875% Senior Notes due 2021		—		500,000
4.625% Senior Notes due 2021, effective interest rate of 4.643%		300,000		300,000
3.800% Senior Notes due 2022, effective interest rate of 3.845%		300,000		300,000
3.850% Senior Notes due 2023, effective interest rate of 3.851%		300,000		300,000
3.550% Senior Notes due 2026, effective interest rate of 3.570%		500,000		500,000
3.600% Senior Notes due 2027, effective interest rate of 3.619%		750,000		750,000
4.350% Senior Notes due 2028, effective interest rate of 4.383%		500,000		500,000
3.900% Senior Notes due 2029, effective interest rate of 3.901%		500,000		500,000
4.200% Senior Notes due 2030, effective interest rate of 4.205%		500,000		—
1.750% Senior Notes due 2031, effective interest rate of 1.798%		500,000		—
Total principal amount of debt		4,150,000		3,911,000
Less: Unamortized discount and debt issuance costs		26,783		20,473
Total long-term debt	$	4,123,217	$	3,890,527

Principle maturities of financing facilities

	Scheduled Maturities
2021	$	300,000
2022		300,000
2023		300,000
2024		—
2025		—
Thereafter		3,250,000
Total	$	4,150,000