The per share price of the Company's stock at which the contract holder of the freestanding contract has the right to purchase or sell the Company's stock at a future date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 50
-Paragraph 5
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120519210&loc=d3e90205-114008

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(1)
-URI http://asc.fasb.org/extlink&oid=109262807&loc=d3e22047-110879

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- Definition

The maximum number of shares that could be issued to net share settle a contract, if applicable. If a contract does not have a fixed or determinable maximum number of shares that may be required to be issued, disclose the fact that a potentially infinite number of shares could be issued to settle the contract.

+ References

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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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Financings and Capitalization (Forward Stock Contracts) (Details) - $ / shares	Dec. 31, 2020	Dec. 22, 2020	Sep. 15, 2020
Forward Contracts Entered Into September 15, 2020 And Maturing December 31, 2021
Debt and Equity Securities, FV-NI [Line Items]
Number of Shares			846,759
Initial forward price (in dollars per share)	$ 60.53		$ 61.04
Forward Contracts Entered Into December 22, 2020 And Maturing June 22, 2022
Debt and Equity Securities, FV-NI [Line Items]
Number of Shares		115,595
Initial forward price (in dollars per share)	$ 61.81	$ 61.81