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Nature of Operations and Items Impacting Basis of Presentation (Tables)
12 Months Ended
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Gain by Transactions Component
The following represents a summary of the deferred gain related to Assurant Employee Benefits that was amortized within the Financial Statements:
Years Ended December 31,
202020192018
Amortization of deferred gains$2.3 $13.6 $46.4