Leases (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Lessee Lease Description [Line Items]
Finance lease, expiration period	2020
Cash payments for operating lease liabilities	$ 1.4
Operating lease, lease not yet commenced, future minimum lease payments	$ 14.9
Operating lease, lease not yet commenced, description	These leases commenced in January 2020 with a term of 10 years.
Operating lease, lease not yet commenced, term of contract	10 years
Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease, expiration period	2020
Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease, expiration period	2030