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Balance Sheet Details - Accrued Price Protection Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	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

X

- 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

X

- 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

X

- 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

X

- 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