Debt - Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Scheduled maturities of debt during the five year period and thereafter
Total	$ 2,050,000	$ 2,175,000
2020	0
2021	174,800
2022	284,200
2023	271,600
2024	440,829
Thereafter	878,571
Debt Instrument [Line Items]
Outstanding debt principal	2,050,000	2,175,000
Senior Notes \| Senior Notes 7.125% Due 2026
Scheduled maturities of debt during the five year period and thereafter
Total	650,000	0
Debt Instrument [Line Items]
Outstanding debt principal	$ 650,000	$ 0

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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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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