Revenues from Contracts - Contract Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Contract Accounts Receivable	$ 215.3	$ 200.6
Increase (decrease) in accounts receivable	14.7
Contract Assets	28.9	32.5
Increase (decrease) in contract with customer, asset, net, current	(3.6)
Contract Liabilities - current	(44.7)	(38.8)
Increase (decrease) in contract with customer, liability, current	(5.9)
Contract liabilities - non-current	(5.8)	(3.4)
Increase (decrease) in contract with customer, liability, noncurrent	(2.4)
Net contract balance	193.7	$ 190.9
Increase (decrease) in contract with customers, net	$ 2.8