Shareholders' Equity Part 2 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Loss
Balance at the beginning of the year	$ (37.2)	$ (22.3)
Other comprehensive income (loss) before reclassifications	3.5
Amounts reclassified from Accumulated Other Comprehensive Loss	(4.8)
Net current period other comprehensive income (loss)	1.3	14.9	$ (27.6)
Balance at the end of the year	(38.5)	(37.2)	$ (22.3)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Loss
Balance at the beginning of the year	(31.9)
Other comprehensive income (loss) before reclassifications	(4.4)
Amounts reclassified from Accumulated Other Comprehensive Loss	0.0
Net current period other comprehensive income (loss)	4.4
Balance at the end of the year	(36.3)	(31.9)
Pension and Postretirement Benefits
Accumulated Other Comprehensive Loss
Balance at the beginning of the year	(0.3)
Other comprehensive income (loss) before reclassifications	(0.4)
Amounts reclassified from Accumulated Other Comprehensive Loss	0.0
Net current period other comprehensive income (loss)	0.4
Balance at the end of the year	(0.7)	(0.3)
Cash Flow Hedge
Accumulated Other Comprehensive Loss
Balance at the beginning of the year	(5.0)
Other comprehensive income (loss) before reclassifications	8.3
Amounts reclassified from Accumulated Other Comprehensive Loss	(4.8)
Net current period other comprehensive income (loss)	(3.5)
Balance at the end of the year	$ (1.5)	$ (5.0)