Represents number of days to apply the proceeds in accordance with Assets Sale covenant.

No definition available.

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Namespace Prefix:	maxr_
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- Definition

The spot rate of foreign currency exchange rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	maxr_
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Period Type:	duration

- Definition

The percentage of instruments held for derivative hedging.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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- Definition

Amount of contingent consideration received or receivable for the disposal of assets and liabilities, including discontinued operation related to foreign currency hedge arrangement.

+ References

No definition available.

+ Details

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Namespace Prefix:	maxr_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

+ Details

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

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

+ Details

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

- 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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Data Type:	xbrli:stringItemType
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- Details

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- Details

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- Details

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- Details

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Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
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Subsequent Events (Details) $ / shares in Units, $ in Millions, $ in Billions				3 Months Ended
	Apr. 16, 2020 USD ($)	Apr. 08, 2020 USD ($)	Feb. 11, 2020 $ / shares	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 29, 2019 CAD ($)	Dec. 29, 2019 USD ($)
Subsequent events
Repayments of long-term debt				$ 5	$ 4
Subsequent event \| Term Loan B
Subsequent events
Repayments of long-term debt	$ 472
Subsequent event \| 2023 Notes
Subsequent events
Repayments of long-term debt	$ 208
MDA business \| Foreign exchange contract
Subsequent events
Derivative hedge percentage			50
Spot rate \| $ / shares			$ 1.339181
MDA business \| Discontinued operations
Subsequent events
Aggregate purchase price						$ 1.0	$ 729
MDA business \| Discontinued operations \| Subsequent event
Subsequent events
Proceeds from sale of business		$ 680
Days to apply proceeds as per asset sales covenant		365 days
MDA business \| Discontinued operations \| Subsequent event \| Foreign exchange contract
Subsequent events
Contingent consideration		$ 373