Long-term debt (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long-term debt

Our long-term debt is summarized below (in thousands):

	Dec. 31,
	2021		2020
Borrowings under revolving credit facility expiring August 2024	$	166,000	$	355,000
Unsecured notes bearing fixed rate interest at 5.50% due September 2024	—		137,000
Unsecured notes bearing fixed rate interest at 4.75% due March 2026	550,000		550,000
Unsecured notes bearing fixed rate interest at 7.75% due June 2027	200,000		200,000
Unsecured notes bearing fixed rate interest at 7.25% due September 2027	240,000		240,000
Unsecured notes bearing fixed rate interest at 4.625% due March 2028	1,000,000		1,000,000
Unsecured notes bearing fixed rate interest at 5.00% due September 2029	1,100,000		1,100,000
Total principal long-term debt	3,256,000		3,582,000
Debt issuance costs	(31,378)		(36,595)
Unamortized premiums and discounts, net	7,348		7,815
Total long-term debt	$	3,231,970	$	3,553,220

Schedule of Annual Maturities of Long-Term Debt

The following schedule discloses annual maturities of the principal amount of total debt due (in thousands):

Repayment schedule of principal long-term debt as of Dec. 31, 2021
2022	$	—
2023	—
2024 (1)	166,000
2025	—
2026	550,000
Thereafter	2,540,000
Total	$	3,256,000

(1) Assumes current revolving credit facility borrowings come due in 2024 and credit facility is not extended.