Borrowings - Global Senior Secured Revolving Credit Facility - Narrative (Details) - Revolving Credit Facility - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Global senior secured revolving credit facility
Debt Instrument [Line Items]
Revolving credit facility	$ 1,050,000,000.0
Maximum ratio of financial indebtedness to cash and cash equivalent investments	0.75
Utilization threshold (as a percent)	20.00%
Maximum ratio of super senior liabilities to cash and cash equivalent investments	0.275
Fixed charge coverage ratio	2.0
Long-term debt	$ 520,500,000
Weighted average interest rate (as a percent)	3.25%
Remaining borrowing capacity	$ 529,500,000
Cabot credit facility
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)		3.55%
Encore revolving credit facility
Debt Instrument [Line Items]
Weighted average interest rate (as a percent)		4.58%
Euro Interbank Offered Rate (EURIBOR) \| Global senior secured revolving credit facility
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Floor interest rate (as a percent)	0.75%
LIBOR \| Global senior secured revolving credit facility
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Floor interest rate (as a percent)	0.75%

Debt Instrument, Interest Rate, Floor Base Rate

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- Definition

Line Of Credit Facility, Covenant Terms, Fixed Charge Coverage Ratio

+ References

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- Definition

Line Of Credit Facility, Covenant Terms, Maximum Ratio Of Financial Indebtedness to Cash And Cash Equivalent Investments

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- Definition

Line Of Credit Facility, Covenant Terms, Maximum Ratio Of Super Senior Liabilities To Cash And Cash Equivalent Investments

+ References

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- Definition

Line Of Credit Facility, Covenant Terms, Utilization Threshold

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The average effective interest rate during the reporting period.

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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.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

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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