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Significant Accounting Policies Reclassifications (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Reclassifications	Reclassifications Certain reclassifications and immaterial revisions have been made to prior-period financial statements to conform to the current-period presentation. Segment information for the prior period has been recast to conform to the current-period presentation.