Leases (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Renewal terms (up to)	6 years
Finance lease liabilities arising from obtaining right-of-use assets		$ 3.6
Finance lease term		2 years
Additional minimum lease payments relating to operating leases signed but not yet commenced	$ 8.2
Minimum [Member]
Lessee, Lease, Description [Line Items]
Remaining terms (less than for minimum)	1 year
Lease not yet commenced, approximate term	3 years
Maximum [Member]
Lessee, Lease, Description [Line Items]
Remaining terms (less than for minimum)	6 years
Lease not yet commenced, approximate term	7 years