Schedule II (Tables)

12 Months Ended

Dec. 31, 2018

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II Valuation and Qualifying Accounts [Table Text Block]

SCHEDULE II - Valuation and Qualifying Accounts

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Deductions (A)		Balance at End of Period
(In millions)
Balance at December 31, 2016
Reserve for Uncollectible Accounts	$	1.4	$	2.5	$	2.4	$	1.5
Balance at December 31, 2017
Reserve for Uncollectible Accounts	$	1.5	$	2.6	$	2.6	$	1.5
Balance at December 31, 2018
Reserve for Uncollectible Accounts	$	1.5	$	1.6	$	1.4	$	1.7

(A) Uncollectible accounts receivable written off, net of recoveries.