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Debt - Schedule of Outstanding Amounts of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 01, 2020	Dec. 31, 2019	Dec. 01, 2016
Line Of Credit Facility [Line Items]
Long-term debt, Gross	$ 873,798
Unamortized debt discount and issuance costs	(34,448)		$ (9,321)
Long-term debt	839,350		334,679
Less: current portion, net of debt discount and issuance costs	(43,689)		0
Long-term debt, net	795,661		334,679
2020 Term B Loan Facility
Line Of Credit Facility [Line Items]
Long-term debt, Gross	873,750
Unamortized debt discount and issuance costs		$ (39,700)
2021 Convertible Notes
Line Of Credit Facility [Line Items]
Long-term debt, Gross	48
Unamortized debt discount and issuance costs	(34,400)		(9,300)
Long-term debt	$ 873,800		344,000
2018 Amended Term B Loan
Line Of Credit Facility [Line Items]
Long-term debt, Gross			$ 344,000
Long-term debt				$ 600,000

X

- Definition

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 unamortized debt discount (premium) and debt issuance costs.

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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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