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Shareholders' Equity (Details) - ATM Program - USD ($)	Feb. 19, 2021	Feb. 11, 2021
Subsidiary, Sale of Stock [Line Items]
Maximum aggregate offering price for sale of stock		$ 500,000,000
Value of common stock sold	$ 500,000,000.0
Number of shares issued (in shares)		4,222,511
Sale of stock, price per share (in dollars per share)	$ 118.41
Proceeds from issuance of common stock, gross	$ 500,000,000.0
Proceeds from issuance of common stock, net	489,100,000
Commissions and offering costs	10,000,000.0
Other offering costs	$ 900,000

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Payments Of Stock Issuance Costs, Commissions

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Sale Of Stock, Maximum Aggregate Offering Price, Value

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The cash inflow from the additional capital contribution to the entity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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Cash received on stock transaction after deduction of issuance costs.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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