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Earnings per Share - Narrative (Details) shares in Millions | 12 Months Ended
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Dec. 31, 2020 shares
Earnings Per Share [Abstract] |
Repurchase of common stock (in shares) | 22.4

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- Definition Number of shares of common stock subject to repurchase or cancellation determined by relating the portion of time within a reporting period that these shares have been outstanding to the total time in that period. Common stock subject to repurchase are outstanding common shares that are contingently returnable (that is, subject to recall). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e2646-109256 + Details
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