Interest coverage ratio under debt instrument covenant.

No definition available.

Name:	maxr_DebtInstrumentInterestCoverageRatio
Namespace Prefix:	maxr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of original issue discount on debt issued.

+ References

No definition available.

+ Details

Name:	maxr_DebtInstrumentOriginalIssueDiscountPercent
Namespace Prefix:	maxr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of periodic payment equal to the original principal amount of debt.

+ References

No definition available.

+ Details

Name:	maxr_DebtInstrumentPeriodicPaymentPercentage
Namespace Prefix:	maxr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of premium paid on repurchase of notes.

+ References

No definition available.

+ Details

Name:	maxr_DebtInstrumentPremiumPercentageOnRepurchaseOfNotes
Namespace Prefix:	maxr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Principal amount of debt redeemed.

+ References

No definition available.

+ Details

Name:	maxr_DebtInstrumentPrincipalAmountRedeemed
Namespace Prefix:	maxr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Threshold leverage ratio under debt instrument covenant.

+ References

No definition available.

+ Details

Name:	maxr_DebtInstrumentThresholdLeverageRatio
Namespace Prefix:	maxr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of debt modified.

+ References

No definition available.

+ Details

Name:	maxr_ModificationOfDebtAmount
Namespace Prefix:	maxr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of issue price on debt.

+ References

No definition available.

+ Details

Name:	maxr_PercentageOfIssuePrice
Namespace Prefix:	maxr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870

Reference 2: 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

Reference 3: 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 4: 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

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

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

- Definition

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

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1D
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12355-112629

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12317-112629

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
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

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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- 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

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 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_UnamortizedDebtIssuanceExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_CreditFacilityAxis=maxr_SyndicatedCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=maxr_DebtInstrumentCovenantFiscalQuarterEndingOnOrPriorToDecember312022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=maxr_DebtInstrumentCovenantFiscalQuarterEndingOnAndAfterMarch312023ThroughAndIncludingDecember312023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=maxr_DebtInstrumentCovenantFiscalQuarterEndingOnOrAfterMarch312024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=maxr_MaturingInJune2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=maxr_AdjustedBaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=maxr_TermLoanBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=maxr_MaturingInJune2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=maxr_SeniorSecuredNotes9.75PercentageDue2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=maxr_SeniorSecuredNotes7.75PercentageDue2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=maxr_SeniorSecuredNotes7.54PercentageDue2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-term debt and interest expense, net - Syndicated credit facility (Details) $ in Thousands			3 Months Ended	6 Months Ended
	Jun. 14, 2022 USD ($)	Jun. 25, 2020 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Long-term debt and interest expense, net
Debt modification				$ 103
Loss on debt extinguishment			$ 53,000	53,000	$ 41,000
Syndicated Credit Facility
Long-term debt and interest expense, net
Debt instrument interest coverage ratio	2.50
Syndicated Credit Facility \| Fiscal Quarter Ending On Or Prior To December 31, 2022
Long-term debt and interest expense, net
Debt instrument threshold leverage ratio	5.50
Syndicated Credit Facility \| Fiscal Quarter Ending On And After March 31, 2023 Through And Including December 31, 2023
Long-term debt and interest expense, net
Debt instrument threshold leverage ratio	5.00
Syndicated Credit Facility \| Fiscal Quarter Ending On Or After March 31, 2024
Long-term debt and interest expense, net
Debt instrument threshold leverage ratio	4.50
Revolving Credit Facility
Long-term debt and interest expense, net
Long-term debt			145,000	145,000
Loss on debt extinguishment	$ 1,000
Revolving Credit Facility \| Maturing in June 2027
Long-term debt and interest expense, net
Maximum borrowing capacity			500,000	500,000
Revolving Credit Facility \| Adjusted Base Rate \| Minimum
Long-term debt and interest expense, net
Spread on variable rate	1.75%
Revolving Credit Facility \| Adjusted Base Rate \| Maximum
Long-term debt and interest expense, net
Spread on variable rate	2.50%
Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Minimum
Long-term debt and interest expense, net
Spread on variable rate	2.75%
Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Maximum
Long-term debt and interest expense, net
Spread on variable rate	3.50%
Letter of credit
Long-term debt and interest expense, net
Maximum borrowing capacity			200,000	200,000
Letter of credit outstanding			29,000	29,000		$ 28,000
Term Loan B
Long-term debt and interest expense, net
Debt instrument periodic payment percentage	1.00%
Long-term debt	$ 1,500,000		1,500,000	1,500,000		1,444,000
Debt extinguishment	1,300,000
Debt modification	103,000
Loss on debt extinguishment	$ 10,000
Term Loan B \| Maturing in June 2029
Long-term debt and interest expense, net
Aggregate principal amount			$ 1,500,000	$ 1,500,000
Debt instrument original issue discount percent				4.50%
Term Loan B \| Adjusted Base Rate \| Minimum
Long-term debt and interest expense, net
Spread on variable rate	3.00%
Term Loan B \| Adjusted Base Rate \| Maximum
Long-term debt and interest expense, net
Spread on variable rate	3.25%
Term Loan B \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Minimum
Long-term debt and interest expense, net
Spread on variable rate	4.00%
Term Loan B \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Maximum
Long-term debt and interest expense, net
Spread on variable rate	4.25%
9.75% 2023 Notes
Long-term debt and interest expense, net
Unamortized deferred financing costs	$ 1,000
Debt instrument unamortized discount	$ 5,000
Long-term debt						500,000
Interest rate (as a percent)	9.75%		9.75%	9.75%
Principal amount of redeemed	$ 500,000
Loss on debt extinguishment	$ 42,000
Percentage of premium paid on repurchase of notes	7.313%
Debt instrument redemption price percentage	107.313%
7.75% 2027 Notes
Long-term debt and interest expense, net
Aggregate principal amount	$ 500,000
Long-term debt			$ 500,000	$ 500,000
Interest rate (as a percent)	7.75%		7.75%	7.75%
Issue Price (as a percent)	100.00%
7.54% 2027 Notes
Long-term debt and interest expense, net
Aggregate principal amount		$ 150,000
Long-term debt			$ 150,000	$ 150,000		$ 150,000
Interest rate (as a percent)	7.54%	7.54%	7.54%	7.54%
Issue Price (as a percent)		98.25%