Accounts Receivable Sales Agreement (Details) - A/R Agreement - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Sep. 13, 2019
Accounts Receivable Sales Agreement
Agreement amount	$ 67.0	$ 250.0
Accounts receivables sold to purchasers	54.0
Gain (loss) on sale of receivables	0.0
Trade receivables pledged as collateral	$ 63.1