Contingencies - Additional Information (Details) - USD ($)	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019
Commitments And Contingencies [Line Items]
Estimated exposure of guarantees	$ 2,500,000	$ 3,300,000
Guarantees accrued	$ 0	$ 0
Minimum
Commitments And Contingencies [Line Items]
Term of guarantees	3 years
Maximum
Commitments And Contingencies [Line Items]
Term of guarantees	5 years

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12069-110248

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant