Accumulated Other Comprehensive Income (Loss) - Components (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ 924.6	$ 829.8	$ 1,013.1	$ 590.3
Balance at end of period	698.1	922.0	698.1	922.0
Cumulative Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(153.4)	(109.3)	(114.3)	(109.0)
Other comprehensive income (loss)	(45.0)	(1.7)	(84.1)	(2.0)
Balance at end of period	(198.4)	(111.0)	(198.4)	(111.0)
Pension & Other Postretirement Benefit Plans, Net
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(27.0)	(69.8)	(33.6)	(71.9)
Other comprehensive income (loss)	2.4	9.3	10.0	9.3
Amounts reclassified from AOCI to net income	(0.9)	(1.2)	(1.9)	0.9
Balance at end of period	(25.5)	(61.7)	(25.5)	(61.7)
Cash Flow Hedges, Net
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	2.5	(0.8)	0.7	(5.2)
Other comprehensive income (loss)	(3.4)	0.6	(2.7)	3.0
Amounts reclassified from AOCI to net income	(2.2)	0.6	(1.1)	2.6
Balance at end of period	(3.1)	0.4	(3.1)	0.4
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(177.9)	(179.9)	(147.2)	(186.1)
Other comprehensive income (loss)	(46.0)	8.2	(76.8)	10.3
Amounts reclassified from AOCI to net income	(3.1)	(0.6)	(3.0)	3.5
Balance at end of period	$ (227.0)	$ (172.3)	$ (227.0)	$ (172.3)