Face (par) amount of debt instrument at time of issuance.

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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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Contractual interest rate for funds borrowed, under the debt agreement.

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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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No definition available.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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Debt - 2027 Notes (Details) - USD ($)	1 Months Ended	12 Months Ended
Debt - 2027 Notes (Details) - USD ($)	Aug. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Proceeds from the issuance of senior notes		$ 693,300,000	$ 0	$ 744,700,000
Loss on extinguishment of debt		10,600,000	0	21,200,000
Debt issuance costs		$ 6,500,000	$ 0	$ 11,900,000
Senior Notes \| 2027 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 750,000,000.0
Stated interest rate	3.80%	3.80%
Percentage of par	99.294%
Debt interest rate, effective percentage	3.885%	3.885%	3.885%
Proceeds from the issuance of senior notes	$ 744,700,000
Debt issuance costs	6,000,000.0
Senior Notes \| 2027 Notes \| Prior to June 15, 2027
Debt Instrument [Line Items]
Percentage of par		100.00%
Senior Notes \| 2027 Notes \| On or After June 15, 2027
Debt Instrument [Line Items]
Percentage of par		100.00%
Senior Notes \| 2023 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0
Percentage of par	100.00%
Make-whole premium	$ 17,000,000.0
Loss on extinguishment of debt	21,200,000
Credit Agreement \| Prior Term Loan Facility \| Term Loan Facility
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0