Leases - Summary of Supplemental Information Related to Leases (Details) $ in Millions	Sep. 30, 2020 USD ($)
Assets And Liabilities Lessee [Abstract]
Finance leases, right of use assets	$ 13.2
Financing Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Finance leases, current lease liabilities	$ 3.6
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Finance leases, long-term lease liabilities	$ 9.7
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]]	us-gaap:OtherLiabilitiesNoncurrent
Finance leases, weighted average remaining lease term	4 years
Finance leases, weighted average discount rates	2.40%
Operating leases, right of use assets	$ 149.0
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Operating leases, current lease liabilities	$ 43.5
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating leases, long-term lease liabilities	$ 109.1
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent
Operating leases, weighted average remaining lease term	5 years 6 months
Operating leases, weighted average discount rates	2.90%
Lease right of use assets, total	$ 162.2
Current lease liabilities, total	47.1
Long-term lease liabilities, total	$ 118.8