Debt - Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal amount outstanding	$ 1,995,919	$ 2,006,046
Less: deferred financing fees	(26,322)	(27,245)
Net balance sheet carrying amount	1,969,597	1,978,801
Term Loan Facility \| 2020 Credit Agreement
Debt Instrument [Line Items]
Principal amount outstanding	390,000	395,000
Line of Credit \| Revolving credit facility \| 2020 Credit Agreement
Debt Instrument [Line Items]
Principal amount outstanding	0	5,000
Senior Notes \| Senior Notes Due 2028
Debt Instrument [Line Items]
Principal amount outstanding	800,000	800,000
Senior Notes \| Senior Notes Due 2030
Debt Instrument [Line Items]
Principal amount outstanding	800,000	800,000
Other
Debt Instrument [Line Items]
Principal amount outstanding	$ 5,919	$ 6,046

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

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