Recently Issued Accounting Pronouncements (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
Schedule of Equity Method Investments [Line Items]
Operating lease liability	$ 23,542
Operating lease asset	$ 22,372
Accounting Standards Update 2016-02 [Member]
Schedule of Equity Method Investments [Line Items]
Operating lease liability		$ 26,500
Operating lease asset		$ 25,600