Description of Company and Summary of Significant Accounting Policies - Factoring Arrangements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Proceeds from sales of accounts receivables	$ 74.5	$ 56.3
Factoring costs	$ 0.5	$ 0.4