Revenue - Schedule of Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Contract assets	$ 61.1	$ 69.4
Contract liabilities	14.6	13.7
Net contract assets	46.5	$ 55.7
$ Change
Contract assets	(8.3)
Contract liabilities	0.9
Net contract assets	$ 9.2
% Change
Contract assets	(12.00%)
Contract liabilities	6.60%
Net contract assets	(16.50%)