The amount of increase in operating lease expense with each period renewal.

No definition available.

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Namespace Prefix:	gfn_
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Balance Type:	debit
Period Type:	duration

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977

+ Details

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

- 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.

+ Details

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Balance Type:	na
Period Type:	duration

- Details

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- Details

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Namespace Prefix:
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Period Type:

- Details

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Related-Party Transactions (Details)			3 Months Ended
Related-Party Transactions (Details)	May 12, 2017 USD ($)	Mar. 01, 2009 USD ($) ft²	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Aug. 07, 2017	Oct. 11, 2012
Affiliate of Chief Executive Officer
Related-Party Transactions
Rental payments		$ 7,393	$ 28,000	$ 28,000
Office space \| ft²		3,000
Term of lease		5 years
Renewal options of lease		5 years			5 years	5 years
Pac Van Las Vegas
Related-Party Transactions
Rental payments	$ 10,876		$ 40,000	$ 38,000
Term of lease	2 years
Pac Van Las Vegas \| Minimum
Related-Party Transactions
Increase in lease expense at renewal	$ 11,420
Pac Van Las Vegas \| Maximum
Related-Party Transactions
Increase in lease expense at renewal	$ 12,590