Notes Receivable from Asset Sales (Tables)

12 Months Ended

Dec. 31, 2017

Notes Receivable from Asset Sales [Abstract]

Notes receivable from asset sales [Table Text Block]

Dollar amounts in millions	Interest  Rate 2017		December 31,
			2017		2016
Notes receivable (secured), maturing 2018, interest rates fixed	7.3	%	$	22.2	$	22.2
Total			22.2		22.2
Current portion			22.2		—
Long-term portion			$	—	$	22.2