Other Operating Expenses/(Income) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Other Operating Expenses [Line Items]
Total other operating expenses	$ 242	$ 6,353
Litigation Settlement [Member]
Other Operating Expenses [Line Items]
Total other operating expenses		$ 6,000

The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

No definition available.

Name:	us-gaap_OtherOperatingIncomeExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration