Leases - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee Lease Description [Line Items]
Lease option to extend	seven years
Lease existence of option to extend	true
Lease option to terminate	eighth year
Lease existence of option to terminate	true
Operating lease not yet commenced expense	$ 2.8
Indirect General and Administrative Expenses
Lessee Lease Description [Line Items]
Rent expense	$ 20.9	$ 20.3
Minimum
Lessee Lease Description [Line Items]
Lease term of contract	1 year
Operating lease not yet commenced term of contract	3 years
Maximum
Lessee Lease Description [Line Items]
Lease term of contract	11 years
Operating lease not yet commenced term of contract	6 years