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Stock-Based Compensation and Employee Benefit Plans - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified |
3 Months Ended | ||||
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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May 09, 2014
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Jan. 02, 2014
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Percentage of fair value market of common stock | 100.00%mxl_ShareBasedPaymentAwardExercisePriceAsPercentageOfCommonStockFairValueMinimum | ||||
| Vesting period for new restricted stock units | 4 years | ||||
| Term of option granted, minimum | 7 years | ||||
| Term of option granted, maximum | 10 years | ||||
| Shares Issued upon Settlement of Executive Bonus Plan | 600,000mxl_SharesIssueduponSettlementofExecutiveBonusPlan | ||||
| Accrued Bonuses, Current | $ 3.1us-gaap_AccruedBonusesCurrent | ||||
| Common stock, shares authorized (shares) | 550,000,000us-gaap_CommonStockSharesAuthorized | 550,000,000us-gaap_CommonStockSharesAuthorized | |||
| Class A Common Stock [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Common stock, shares authorized (shares) |
500,000,000us-gaap_CommonStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
500,000,000us-gaap_CommonStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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| Voting rights per share |
1mxl_NumberOfVotingRightsPerShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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| Number of convertible common stock |
1mxl_ConversionOfClassBCommonStockToClassCommonStockShares / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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| Class B Common Stock [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Common stock, shares authorized (shares) |
500,000,000us-gaap_CommonStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
500,000,000us-gaap_CommonStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
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| Voting rights per share |
10mxl_NumberOfVotingRightsPerShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
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| Equity Incentive Plan [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Shares authorized for issuance |
1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = mxl_EquityIncentivePlanMember |
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| Employee Stock Purchase Plan [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Shares authorized for issuance |
500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = mxl_EmployeeStockPurchasePlanMember |
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| Contribution of earnings by employees |
15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate / us-gaap_PlanNameAxis = mxl_EmployeeStockPurchasePlanMember |
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| Percentage of purchase of common stock |
85.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate / us-gaap_PlanNameAxis = mxl_EmployeeStockPurchasePlanMember |
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| Percentage of common stock on the date of purchase |
85.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate / us-gaap_PlanNameAxis = mxl_EmployeeStockPurchasePlanMember |
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| RSU and RSA [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value |
$ 8.22us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = mxl_RestrictedStockUnitandRestrictedStockAwardMember |
$ 9.93us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = mxl_RestrictedStockUnitandRestrictedStockAwardMember |
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| X | ||||||||||
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- Definition
Conversion of class B common stock to class A common stock, shares. No definition available.
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| X | ||||||||||
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- Definition
Number of voting rights per share. No definition available.
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| X | ||||||||||
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- Definition
The maximum period when the equity-based award expires as specified in the award agreement, which may be presented in a variety of ways (for example, year, month and year, day, month and year, quarter of a year). No definition available.
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| X | ||||||||||
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- Definition
The minimum period when the equity-based award expires as specified in the award agreement, which may be presented in a variety of ways (for example, year, month and year, day, month and year, quarter of a year). No definition available.
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| X | ||||||||||
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- Definition
Share based payment award exercise price as percentage of common stock fair value. No definition available.
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| X | ||||||||||
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- Definition
Shares issued upon settlement of executive bonus plan No definition available.
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Discount rate from fair value on offering date that participants pay for shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Discount rate from fair value on purchase date that participants pay for shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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| X | ||||||||||
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- Definition
The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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