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Basis of Presentation And Summary Of Significant Accounting Policies (Narrative) (Details) $ in Millions | Jan. 01, 2019 USD ($)
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Significant Accounting Policies [Line Items] |
Reclassification from AOCI to retained earnings | $ 2.8
ASU 2016-02 [Member] |
Significant Accounting Policies [Line Items] |
Cumulative-effect adjustment on assets | 22.7
Cumulative-effect adjustment on liabilities | $ 23.4

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