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Basis of Presentation and Summary of Significant Accounting Policies - Share-Based Compensation (Details)	12 Months Ended
	Dec. 31, 2020 plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based compensation plans	1
Minimum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement, vesting percentage	0.00%
Maximum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement, vesting percentage	100.00%

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Number Of Share-based Compensation plans

+ References

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+ References

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- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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