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Debt - Senior Credit Facilities (Details) - Line of Credit - USD ($) $ in Millions | 1 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Mar. 31, 2022
Debt Instrument [Line Items] |  |
Incremental borrowing capacity |  | $ 750.0
Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Maximum borrowing capacity |  | $ 2,750.0
Revolving Credit Facility | Base Rate | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.125% |
Revolving Credit Facility | Base Rate | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.50% |
Revolving Credit Facility | Daily Simple SOFR Rate | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.125% |
Revolving Credit Facility | Daily Simple SOFR Rate | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.50% |
Revolving Credit Facility | EURIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.125% |
Revolving Credit Facility | EURIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.50% |
Revolving Credit Facility | Federal Funds Rate |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 0.50% |
Revolving Credit Facility | Adjusted Term SOFR Rate |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.00% |

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- Definition Line of Credit Facility, Incremental Borrowing Capacity + References No definition available. + Details
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Namespace Prefix: | mchp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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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. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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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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Balance Type: | na
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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 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
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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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- Details
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- Details
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