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Debt - Senior Notes (Details)	12 Months Ended
	Dec. 31, 2019 USD ($)
5.00% Senior Note
Debt Instrument [Line Items]
Interest rate	5.00%
Aggregate principal amount	$ 550,000,000.0
5.25% Senior Note
Debt Instrument [Line Items]
Interest rate	5.25%
Aggregate principal amount	$ 300,000,000.0
Redemption period one | 5.00% Senior Note
Debt Instrument [Line Items]
Redemption percentage	101.25%
Redemption period one | 5.25% Senior Note
Debt Instrument [Line Items]
Redemption percentage	102.625%
Redemption period two | 5.00% Senior Note
Debt Instrument [Line Items]
Redemption percentage	100.00%
Redemption period two | 5.25% Senior Note
Debt Instrument [Line Items]
Redemption percentage	101.313%
Redemption period three | 5.25% Senior Note
Debt Instrument [Line Items]
Redemption percentage	100.00%

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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

No definition available.

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X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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