Long-term debt (Tables)

3 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

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

	Mar. 31, 2022		Dec. 31, 2021
Borrowings under revolving credit agreement expiring August 2024	$	—	$	166,000
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	3,090,000		3,256,000
Debt issuance costs	(30,295)		(31,378)
Unamortized premiums	7,078		7,348
Total long-term debt	$	3,066,783	$	3,231,970