Subsequent Events (Details) - USD ($) $ in Millions		1 Months Ended
Mar. 30, 2020	Oct. 31, 2020
Subsequent Event
Subsequent Event
Escrow deposit disbursements related to property acquisition		$ 2.5
Income tax refunds		$ 0.3
COVID-19 pandemic
Subsequent Event
Reduction headcount (percentage)	35.00%
COVID-19 pandemic \| Data Analytics \| Subsequent Event
Subsequent Event
Reduction headcount (percentage)		35.00%

Amount of escrow deposit disbursements related to property acquisition in noncash investing or financing transactions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

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