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Stock-Based Compensation and Employee Benefit Plans - Additional Information (Detail) (USD $)
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12 Months Ended | ||||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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May 09, 2014
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May 03, 2013
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Intrinsic value of restricted stock units, vested | $ 21,900,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested | $ 14,900,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested | $ 3,200,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested | ||
| Intrinsic value of options exercised | 600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue | 300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue | 2,100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue | ||
| Restricted stock units issued in the period | 1,786,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | 1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | |||
| Shares issed upon settlement of executive bonus plan | 600,000mxl_SharesIssueduponSettlementofExecutiveBonusPlan | 800,000mxl_SharesIssueduponSettlementofExecutiveBonusPlan | |||
| Common stock, shares authorized (shares) | 550,000,000us-gaap_CommonStockSharesAuthorized | 550,000,000us-gaap_CommonStockSharesAuthorized | |||
| Stock repurchased and retired during the period, shares | 0us-gaap_StockRepurchasedAndRetiredDuringPeriodShares | ||||
| Share based compensation expense exchange offer | 7,300,000mxl_ShareBasedCompensationExpenseExchangeOffer | ||||
| Incremental value attributable to modification of options | 1,800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost | ||||
| Stock repurchased and retired during the period, value | (12,076,000)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue | ||||
| Share-based compensation expense related to non-employee | 100,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims | 200,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims | 800,000us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims | ||
| Intrinsic value of restricted stock units, outstanding | 26,000,000mxl_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingIntrinsicValue | ||||
| Accrual of bonus awards recorded for employees | 3,100,000us-gaap_AccruedBonusesCurrent | ||||
| Class A Common Stock | |||||
| 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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| Stock repurchased and retired during the period, shares |
(1,152,000)us-gaap_StockRepurchasedAndRetiredDuringPeriodShares / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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| Eligible options to purchase shares |
1,300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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| Class B Common Stock | |||||
| 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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| Right to appoint directors number of directors |
2mxl_RightToAppointDirectorsNumberOfDirectors / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
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| Stock repurchased and retired during the period, shares |
(1,000,000)us-gaap_StockRepurchasedAndRetiredDuringPeriodShares / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
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| Eligible options to purchase shares |
600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
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| 2010 Equity Incentive Plan [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Vesting period for new restricted stock units | 4 years 0 months 0 days | ||||
| Term of option granted, minimum | 7 years 0 months 0 days | ||||
| Term of option granted, maximum | 10 years 0 months 0 days | ||||
| 2010 Equity Incentive Plan [Member] | Class A Common Stock | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Increase in common stock reserved for issuance |
2,600,000mxl_CommonStockCapitalSharesReservedForFutureIssuancePeriodIncreaseDecrease / us-gaap_PlanNameAxis = mxl_TwoThousandTenEquityIncentivePlanMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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| Percentage of outstanding shares of common stock |
4.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum / us-gaap_PlanNameAxis = mxl_TwoThousandTenEquityIncentivePlanMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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| 2010 Employee Stock Purchase Plan [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Contribution of earnings by employees |
15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate / us-gaap_PlanNameAxis = mxl_TwoThousandTenEmployeeStockPurchasePlanMember |
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| Percentage of purchase of common stock |
85.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate / us-gaap_PlanNameAxis = mxl_TwoThousandTenEmployeeStockPurchasePlanMember |
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| Increase in common stock reserved for issuance |
1,000,000mxl_CommonStockCapitalSharesReservedForFutureIssuancePeriodIncreaseDecrease / us-gaap_PlanNameAxis = mxl_TwoThousandTenEmployeeStockPurchasePlanMember |
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| Percentage of outstanding shares of common stock |
1.25%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum / us-gaap_PlanNameAxis = mxl_TwoThousandTenEmployeeStockPurchasePlanMember |
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| Maximum duration of employee stock purchase plan | 27 months | ||||
| Percentage of common stock at the date of purchase |
85.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate / us-gaap_PlanNameAxis = mxl_TwoThousandTenEmployeeStockPurchasePlanMember |
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| Unvested Stock Options [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Total unrecognized compensation cost |
3,100,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = mxl_UnvestedStockOptionsMember |
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| Weighted average period over equity awards expected to vest | 2 years 1 month 21 days | ||||
| RSU and RSA | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Total unrecognized compensation cost |
$ 18,100,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = mxl_RestrictedStockUnitandRestrictedStockAwardMember |
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| Weighted average period over equity awards expected to vest | 2 years 2 months 16 days | ||||
| X | ||||||||||
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- Definition
Common Stock Capital Shares Reserved For Future Issuance Period Increase Decrease No definition available.
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| X | ||||||||||
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- Definition
Maximum duration of employee stock purchase plan 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
Right To Appoint Directors Number Of Directors 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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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Other Than Options Outstanding Intrinsic Value No definition available.
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- Definition
Represents total expense to be recognized in relation to the Exchange Offer. No definition available.
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- Definition
Shares issued upon settlement of executive bonus plan No definition available.
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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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- Definition
Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, 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
Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims. 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
Intrinsic value of equity-based compensation awards vested. Excludes stock and unit options. No definition available.
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| X | ||||||||||
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- Definition
The number of grants made 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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- Details
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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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- Definition
Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock. No definition available.
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- Definition
An excess of the fair value of the modified award over the fair value of the award immediately before the modification. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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