Line of Credit Facility, Number of Syndicated Banks

No definition available.

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- Definition

Amount of the total principal payments made during the annual reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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- Definition

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

+ 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.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 210
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Balance Type:	credit
Period Type:	instant

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Balance Type:	credit
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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Period Type:	duration

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- Details

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- Details

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- Details

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Debt - Additional Information (Details)				12 Months Ended
Debt - Additional Information (Details)	Dec. 31, 2019 USD ($)	May 17, 2019	Jul. 20, 2017 USD ($) numberOfBanks	Dec. 31, 2018 USD ($)	May 20, 2019 USD ($)
Debt Instrument [Line Items]
Unused short-term lines of credit	$ 237,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, term			5 years
Maximum borrowing capacity			$ 500,000,000
Medium-term Notes
Debt Instrument [Line Items]
Debt instrument, term			5 years
Maximum borrowing capacity			$ 250,000,000
Annual amortization payments			$ 12,500,000
Debt repaid				$ 75,000,000
Medium-term Notes \| LIBOR
Debt Instrument [Line Items]
Basis points			112.50%
Commercial Paper
Debt Instrument [Line Items]
Maximum borrowing capacity				500,000,000
Eight Banks Syndicate
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 750,000,000
Number of banks syndicated \| numberOfBanks			8
Term loan, due May 2020 \| Term Loan Facility
Debt Instrument [Line Items]
Debt instrument, term		364 days
Loan agreement	$ 200,000,000			0	$ 200,000,000
Term loan, due May 2020 \| Term Loan Facility \| LIBOR
Debt Instrument [Line Items]
Basis points	100.00%
Commercial Paper
Debt Instrument [Line Items]
Loan agreement	$ 250,000,000			$ 120,000,000