Long-Term Debt - 2 1/4% Senior Notes (Details) - Two and One Quarter Percent Senior Notes Due 2028 [Member]	Feb. 26, 2020
Debt Instrument Redemption Period - Post March 1 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage, Initial	101.125%
Debt Instrument, Redemption Price, Percentage, Ending	100.00%
Debt Instrument, Redemption - Pre March 1 2023 [Member]
Debt Instrument [Line Items]
Maximum Redemption Percent Allowed And Limited To Proceeds From Equity Offering	35.00%
Debt Redemption, Price Percent Of Principal Amount, From the Proceeds of Certain Equity Offerings	102.25%
Debt Instrument, Redemption Price, Percentage	100.00%
Redemption Price Percent If Change in Control Occurs	101.00%

Debt Instrument, Redemption Price, Percentage, Ending

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- Definition

Debt Instrument, Redemption Price, Percentage, Initial

+ References

No definition available.

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- Definition

Debt Redemption, Price Percent Of Principal Amount, From the Proceeds of Certain Equity Offerings

+ References

No definition available.

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- Definition

Maximum Redemption Percent Allowed And Limited To Proceeds From Equity Offering

+ References

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- Definition

Redemption Price Percent If Change in Control Occurs

+ References

No definition available.

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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.

+ Details

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- 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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