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Balance Sheet Details- Accrued Price Protection Liability (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Accrued Price Protection Rebate Activity [Roll Forward] |  |
Begining Balance | $ 16,454 | $ 21,571
Charged as a reduction of revenue | 24,449 | 34,288
Reversal of unclaimed rebates | (42) | (2,413)
Payments | (28,304) | (36,992)
Ending Balance | $ 12,557 | $ 16,454

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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

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- Definition Reversal Of Unclaimed Rebates + References No definition available. + Details
Name: | mxl_ReversalOfUnclaimedRebates
Namespace Prefix: | mxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration