Amount of impairment loss from right-of-use asset from finance lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 25
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121593497&loc=SL77918425-209957

Name:	us-gaap_FinanceLeaseImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring (Impairment Charges) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Right-of-use asset impairment	$ 0	$ 0	$ 8,881	$ 0
Level 3 [Member]
Restructuring Cost and Reserve [Line Items]
Right-of-use asset impairment			$ 8,900