Supplemental Financial Information (Assets and Liabilities Held for Sale) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Assets
Current assets, total	$ 339
Current operating lease assets	1,710
Current assets held for sale	1,747
Liabilities
Current operating lease liabilities	1,408
Net assets held for sale	$ 37

Amount of other assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 15
-Paragraph 4
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=77912953&loc=d3e400-110220

Name:	us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant