Shareholders' Equity (Narrative) (Details) $ in Millions	Aug. 06, 2020 USD ($)
Class A Common Stock [Member] \| Subsequent Event [Member]
Class of Stock [Line Items]
Stock repurchase program, remaining authorization	$ 424.3

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.

No definition available.

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