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Segment Reporting and Significant Customer Information - Narrative (Details) - Segments		6 Months Ended
	Jan. 13, 2020	Jun. 30, 2020
Segment Reporting Information [Line Items]
Number of reportable operating segments		3
JFC Travel Group Co. | Stock Purchase Agreement
Segment Reporting Information [Line Items]
Percentage of ownership after transaction	60.00%	40.00%

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Details

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- Details

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