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Balance Sheet Details - Accrued Price Protection Liability (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Accrued Price Protection Rebate Activity [Roll Forward] |  |
Beginning balance | $ 40,509 | $ 47,766
Charged as a reduction of revenue | 41,473 | 24,423
Payments | (13,633) | (17,160)
Ending balance | $ 68,349 | $ 55,029

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- Definition Accrued price protection liability. + References No definition available. + Details
Name: | mxl_AccruedPriceProtectionLiability
Namespace Prefix: | mxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Accrued price protection rebate activity + References No definition available. + Details
Name: | mxl_AccruedPriceProtectionRebateActivityRollForward
Namespace Prefix: | mxl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Price protection rebate charges as a reduction of revenue + References No definition available. + Details
Name: | mxl_PriceProtectionRebateCharges
Namespace Prefix: | mxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Price Protection payments + References No definition available. + Details
Name: | mxl_PriceProtectionpayments
Namespace Prefix: | mxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration