Leases (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($) lease	Jan. 01, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Right of Use Assets				$ 45,384
Lease Liabilities				$ 54,548
Land [Member]
Lessee, Lease, Description [Line Items]
Number of leasing arrangement | lease				5
Rent expense		$ 4,228	$ 3,460
Building [Member]
Lessee, Lease, Description [Line Items]
Number of leasing arrangement | lease				2
Rent expense	$ 735	$ 785
Accounting Standards Update 2016-02 [Member]
Lessee, Lease, Description [Line Items]
Right of Use Assets					$ 55,515
Lease Liabilities					$ 55,515