Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt and Capital Lease Obligations
Less: Unamortized debt issuance costs	$ (7,619)	$ (10,832)
Carrying amount, total long-term debt	2,392,381	2,389,168
Carrying amount, current portion, net	(897,303)	0
Carrying amount, long-term debt, net	1,495,078	2,389,168
Fair value, total long-term debt	2,550,273	2,622,994
Fair value, current portion, net	(935,343)	0
Fair value, long-term debt, net	$ 1,614,930	2,622,994
5 1/4% Senior Secured Notes due 2026
Debt and Capital Lease Obligations
Stated interest rate	5.25%
Effective interest rates	5.32%
Carrying Amount	$ 750,000	750,000
Fair value, total long-term debt	$ 799,905	825,308
7 5/8% Senior Unsecured Notes due 2021
Debt and Capital Lease Obligations
Stated interest rate	7.625%
Effective interest rates	8.062%
Carrying Amount	$ 900,000	900,000
Fair value, total long-term debt	$ 935,343	963,783
6 5/8% Senior Unsecured Notes due 2026
Debt and Capital Lease Obligations
Stated interest rate	6.625%
Effective interest rates	6.688%
Carrying Amount	$ 750,000	750,000
Fair value, total long-term debt	$ 815,025	$ 833,903

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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