Leases (Additional Disclosures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, renewal term	10 years
Operating lease, right-of-use asset	$ 16,388		$ 0
Operating lease liability noncurrent	16,973
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, right-of-use asset		$ 18,400
Operating lease liability noncurrent	$ 18,400	$ 18,400
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, remaining lease term	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, remaining lease term	19 years