Leases - Summary of Leases as Lessee (Details) $ in Thousands	9 Months Ended
Sep. 30, 2020 USD ($) lease	Sep. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lease liabilities and ROU assets recognized	$ 383	$ 103,519
Office
Lessee, Lease, Description [Line Items]
Number of leases \| lease	1
Lease liabilities and ROU assets recognized	$ 383

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(2)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

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