Investments in Affiliates Equity Investee Summarized Financial Information (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity Method Investment, Summarized Financial Information [Abstract]
Revenue	$ 330.2	$ 329.8	$ 292.7
Gross profit	94.6	91.0	88.9
Net income (loss)	15.5	19.4	$ 20.7
Current assets	114.2	123.6
Noncurrent assets	80.3	74.4
Current liabilities	18.8	16.9
Noncurrent liabilities	$ 96.1	$ 54.2