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.

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of joint and several liability recognized in the balance sheet.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 405
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84228828&loc=SL34748401-199205

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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Period Type:	duration

- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Details

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Namespace Prefix:
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- Details

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Significant Accounting Policies - Off-balance Sheet Arrangements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Feb. 05, 2020	Dec. 31, 2018
Obligation with Joint and Several Liability Arrangement [Line Items]
Increase in authorized shares under the repurchase program	389,938
Standby letters of credit
Obligation with Joint and Several Liability Arrangement [Line Items]
Term of debt instrument	1 year
Liabilities for potential obligations	$ 0.0		$ 0.0
Subsequent event
Obligation with Joint and Several Liability Arrangement [Line Items]
Increase in authorized shares under the repurchase program		2,000,000