Leases - Additional Information (Details) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2019 USD ($) lease	Dec. 31, 2019 USD ($) property	Dec. 31, 2018 USD ($)
Lessee, Lease, Description [Line Items]
Lease cost		$ 23.4	$ 20.6
Number of leases terminated | lease	3
Operating lease ROU asset, decrease from lease termination	$ 4.2
Operating lease liability, decrease from lease termination	4.2
Operating lease, liability, decrease from sale of leased asset	$ 10.9
Number of leased properties | property		3
Lease income		$ 2.8	$ 2.8
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lease term	1 year	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lease term	14 years	14 years
Air Transportation Equipment [Member]
Lessee, Lease, Description [Line Items]
Proceeds from sale of machinery and equipment	$ 15.5
Gain (loss) on termination of lease	2.8
Operating lease, ROU asset, decrease from sale of leased asset	$ 10.9