XML 60 R46.htm IDEA: XBRL DOCUMENT v3.19.3
Leasing Leasing (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Mar. 31, 2019
Leases [Abstract]      
Operating Lease, Right-of-Use Asset $ 180.0 $ 180.0 $ 137.0
Lease, Cost [Abstract]      
Weighted-average remaining lease term 11 years 11 years  
Weighted-average discount rate operating leases 3.20% 3.20%  
Operating lease cost recognized as occupancy and equipment expense $ 7.1 $ 19.3  
Operating cash flows from operating leases 5.9 17.3  
Short-term Lease, Cost 3.3 10.9  
Finance Lease, Liability, Payment, Due, Rolling Maturity [Abstract]      
Lessee, Operating Lease, Liability, Payments, Due Next Rolling Twelve Months 7.0 7.0  
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Two 29.6 29.6  
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Three 27.4 27.4  
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Four 20.3 20.3  
Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Five 18.6 18.6  
Lessee, Operating Lease, Liability, Payments, Due after Rolling Year Five $ 136.3 $ 136.3