Debt instrument additional borrowing amount.

No definition available.

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Namespace Prefix:	geg_
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Balance Type:	credit
Period Type:	instant

- Definition

Debt instrument last installment payment date.

+ References

No definition available.

+ Details

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Namespace Prefix:	geg_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument maturity date month and year.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Debt instrument remaining outstanding principal amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	geg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Deferred structuring fees.

+ References

No definition available.

+ Details

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Namespace Prefix:	geg_
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Balance Type:	credit
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- Definition

Inventory and equipment financing.

+ References

No definition available.

+ Details

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- Definition

Prepayment premiums and settlement fees.

+ References

No definition available.

+ Details

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- Definition

Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

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-Name Accounting Standards Codification
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-SubTopic 10
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-Subparagraph (g)(2)
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Balance Type:	credit
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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Amount of long-term debt due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

The average effective interest rate during the reporting period.

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-Subparagraph (SX 210.5-02.22(a)(1))
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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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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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
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- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Amount, after accumulated amortization, of debt premium.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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- Definition

Amount of interest expense classified as other.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

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- Definition

The effective interest rate at the end of the reporting period.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

Fair value portion of notes payable.

+ References

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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Borrowings - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended
Borrowings - Additional Information (Details) - USD ($)	Dec. 29, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 10, 2021	Jun. 30, 2020	Jun. 30, 2019	Sep. 30, 2018	Sep. 07, 2018	Mar. 31, 2018
Debt Instrument [Line Items]
Interest expense other borrowings		$ 1,500,000	$ 1,600,000	$ 4,200,000	$ 4,900,000
Loss on extinguishment of debt				(1,866,000)
Additional paid-in-capital		3,319,516,000		3,319,516,000			$ 3,318,117,000
MAST Capital
Debt Instrument [Line Items]
Convertible notes issued						$ 2,300,000
Additional paid-in-capital						$ 600,000
Equipment Financing Debt Agreements \| Operating Subsidiaries of DME Inc
Debt Instrument [Line Items]
Inventory and equipment financing				$ 1,600,000	$ 1,300,000
Equipment Financing Debt Agreements \| Minimum \| Operating Subsidiaries of DME Inc
Debt Instrument [Line Items]
Term of debt				1 year
Implicit interest rate				7.00%
Equipment Financing Debt Agreements \| Maximum \| Operating Subsidiaries of DME Inc
Debt Instrument [Line Items]
Term of debt				3 years
Implicit interest rate				8.00%
DME Revolver
Debt Instrument [Line Items]
Credit facility balance		0.0		$ 0.0
Credit facility maximum borrowing capacity		$ 10,000,000		$ 10,000,000
Credit facility expiration date				Nov. 29, 2022
Debt Instrument, Basis Spread on Variable Rate				0.40%
Credit facility interest rate		3.70%		3.70%
Debt instrument description				the prime rate plus 0.4% per annum
DME, Inc.
Debt Instrument [Line Items]
Percentage of voting interests acquired										80.10%
DME, Inc. \| DME Revolver
Debt Instrument [Line Items]
Debt acquired principal amount		$ 6,300,000		$ 6,300,000						$ 800,000
Corbel Facility
Debt Instrument [Line Items]
Additional borrowings								$ 3,400,000
Remaining outstanding principal amount	$ 24,800,000
Deferred structuring fees	600,000
Prepayment premiums and settlement fees	1,000,000.0
Lender legal fees	100,000
Unamortized debt issuance costs	200,000
Loss on extinguishment of debt	$ 1,900,000
Corbel Facility \| DME, Inc.
Debt Instrument [Line Items]
Debt acquired principal amount									$ 25,000,000	$ 8,500,000
GP Corp. Note
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				3.00%
Debt instrument description				three-month LIBOR plus 3.0% per annum
Secured notes, maturity month and year				2026-11
Senior Notes
Debt Instrument [Line Items]
Debt acquired principal amount											$ 54,800,000
Long term debt, fair value											52,200,000
Debt instrument unamortized discount											2,600,000
Debt instrument accrues interest rate		3.49%		3.49%
Debt instrument last required payment		$ 18,400,000		$ 18,400,000
Secured notes, maturity date				Mar. 15, 2030
Debt instrument last installment payment date				Mar. 15, 2030
Subordinated Notes
Debt Instrument [Line Items]
Debt acquired principal amount											2,700,000
Long term debt, fair value											5,800,000
Debt instrument accrues interest rate		15.00%		15.00%
Debt instrument last required payment		$ 16,300,000		$ 16,300,000
Secured notes, maturity date				Mar. 15, 2030
Debt instrument last installment payment date				Mar. 15, 2030
Subordinated Notes \| CRIC IT
Debt Instrument [Line Items]
Debt instrument unamortized premium											$ 3,100,000