Performance-Based Stock Awards Issued and Outstanding (Parenthetical) (Details) - Amended and Restated 2010 Incentive Plan - Performance Stock Units	12 Months Ended
Dec. 31, 2019 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of PSUs available to be earned \| shares	305,000
Common stock fair value per share	$ 88.44
Performance stock units purchase price per share	$ 0
Vesting percentage	200.00%

Performance stock price per share.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options unvested maximum number of shares available to earn.

+ References

No definition available.

+ Details

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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

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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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=116856206&loc=d3e5070-113901

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