Summary of Lease information (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Noncash component of lease expense		$ 13.2
Lease extension term		10 years
Lease expiration period		2033
Increase (decrease) in right-of-use asset	$ 53.0
Increase (decrease) in operating lease liabilities	$ 53.0