Leases - Additional Information (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Lessor, Lease, Description [Line Items]
Lease expense	$ 6.9	$ 13.6
Amounts included in measurement of lease liabilities	7.7	14.4
Amount to obtain ROU assets	8.0	$ 13.2
Term of options to extend leases		12 months
Term for option to terminate leases		1 year
Interest income for sales-type and direct finance leases	$ 2.3	$ 4.3
Minimum
Lessor, Lease, Description [Line Items]
Term of contract on operating lease	1 year	1 year
Remaining lease terms on sales type and direct finance leases		4 years
Maximum
Lessor, Lease, Description [Line Items]
Term of contract on operating lease	45 years	45 years
Remaining lease terms on sales type and direct finance leases		20 years