Debt Instrument, Repayment Of Aggregate Principal Amount Of Loans

No definition available.

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Namespace Prefix:	mtga_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum Liquidity Requirement

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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- Details

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SUBSEQUENT EVENTS (Details) $ in Millions	Dec. 01, 2020 USD ($)	Nov. 18, 2020 USD ($)	Dec. 15, 2020 USD ($)	Nov. 30, 2020 CAD ($)	Sep. 30, 2020 USD ($)	Jul. 31, 2020 CAD ($)	Oct. 31, 2016 USD ($)
Senior Secured Credit Facility \| Credit Facility
Subsequent Event [Line Items]
Borrowing capacity					$ 25,000,000.0		$ 25,000,000.0
Credit facility outstanding					$ 0
MGE Niagara Resorts Credit Facility \| Third Waiver
Subsequent Event [Line Items]
Minimum liquidity requirement						$ 15.0
Subsequent event \| Senior Secured Credit Facility \| Credit Facility
Subsequent Event [Line Items]
Borrowing capacity		$ 20,000,000.0
Subsequent event \| Senior Secured Credit Facility \| LIBOR Floor \| Credit Facility
Subsequent Event [Line Items]
Basis spread on variable rate		0.75%
Subsequent event \| MGE Niagara Resorts Credit Facility \| Third Waiver
Subsequent Event [Line Items]
Minimum liquidity requirement				$ 15.0
Subsequent event \| Term Loan Facility
Subsequent Event [Line Items]
Repayment of aggregate principal amount of loans	15.00%
Subsequent event \| Term Loan Facility \| Notes payable to banks
Subsequent Event [Line Items]
Borrowing capacity	$ 50,000,000.0
Credit facility outstanding			$ 50,000,000.0
Subsequent event \| Term Loan Facility \| LIBOR
Subsequent Event [Line Items]
Basis spread on variable rate	3.00%