Leases (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease term	9 years	9 years
Operating lease termination period		1 year
Lease cost	$ 13.3	$ 25.7