Number of additional common stock outstanding owned by related party.

No definition available.

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Namespace Prefix:	meg_
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Period Type:	instant

- Definition

Amount for accounts payable to related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
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-Publisher FASB
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-Publisher FASB
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-Topic 942
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-Section S99
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-Subparagraph (SX 210.9-03.15(5))
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-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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- Definition

Number of shares of common stock issued as dividends during the period. Excludes stock splits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Costs of sales and operating expenses for the period incurred from transactions with related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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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.

+ Details

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- Details

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- Details

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Related-Party Transactions - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Amount due to related party	$ 0		$ 0		$ 0
Number of shares issued as dividend payment					1,786,739
Number of additional common stock outstanding owned by related party					2,534,239
Acquisition Targets \| Selling, General and Administrative Expenses
Related Party Transaction [Line Items]
Payment to related party	$ 0	$ 0	$ 0	$ 100,000