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Leases - Additional Information (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2019
USD ($)
RealEstate
Location
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Lessee Lease Description [Line Items]      
Number of real estate leases | RealEstate 31    
Number of service center locations | Location 236    
Lessee, operating lease, option to renew, earliest year 2020    
Lessee, operating lease, option to renew, latest year 2033    
Operating lease, liability, current $ 10.4    
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] us-gaap:AccruedLiabilitiesCurrent    
Operating lease, liability, noncurrent $ 56.1    
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesNoncurrent    
operating Lease right of use asset $ 65.3    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] us-gaap:OtherAssetsNoncurrent    
Operating lease, weighted average remaining lease term 9 years 4 months 24 days    
Operating lease, weighted average discount rate, percent 4.00%    
Cash paid for amounts included in the measurement of operating leases $ 14.3    
Operating lease, expense 14.7 $ 12.6 $ 14.1
Right-of-use assets obtained in exchange for new operating lease liabilities $ 8.3    
Minimum [Member]      
Lessee Lease Description [Line Items]      
Lessee, operating lease, renewal term 1 year    
Maximum [Member]      
Lessee Lease Description [Line Items]      
Lessee, operating lease, renewal term 10 years