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Related-Party Arrangements - Additional Information (Detail) (USD $) | 12 Months Ended | 1 Months Ended
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Oct. 31, 2013 | Oct. 31, 2007 | Feb. 28, 2009
Related Party Transaction [Line Items] |  |  |  |  |  |
Principal amount outstanding under credit facility | $ 80,000,000 us-gaap_LineOfCredit |  |  |  |  |
Amount available for future borrowings | 30,100,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity |  |  |  |  |
Accrued interest of related party debt | 3,500,000 mnkd_AccruedInterestOfRelatedPartyDebt | 600,000 mnkd_AccruedInterestOfRelatedPartyDebt |  |  |  |
Available borrowings under loan agreement | 30,100,000 mnkd_AvailableBorrowingsUnderLoanAgreement | 30,100,000 mnkd_AvailableBorrowingsUnderLoanAgreement |  |  |  |
Interest expense on note payable principal stockholder | 2,894,000 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty | 6,309,000 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty | 10,491,000 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty |  |  |
Expenses related to charter service on behalf of principal shareholder | 79,000 mnkd_PaymentsForUseOfAircrafts | 82,000 mnkd_PaymentsForUseOfAircrafts | 200,000 mnkd_PaymentsForUseOfAircrafts |  |  |
Principal stockholder |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Loan agreement with related party |  |  |  | 370,000,000 mnkd_LoanAgreementWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember | 350,000,000 mnkd_LoanAgreementWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |
Principal stockholder | Loan Arrangement |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Interest rate (LIBOR) |  |  |  |  |  | 3.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember
Description of variable rate interest |  |  |  |  |  | One-year LIBOR
Fixed borrowing rate |  | 5.84%mnkd_BorrowingRate / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |  |  |
Accrued interest that became due and payable upon cancellation of the of principal indebtedness, to be capitalized | 3,500,000 us-gaap_InterestPayableCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |  |  |  |
Principal amount outstanding under credit facility | 49,500,000 us-gaap_LineOfCredit / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |  |  |  |
Amount available for future borrowings | 30,100,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |  |  |  |
Fixed borrowing rate | 5.84%us-gaap_LongTermDebtPercentageBearingFixedInterestRate / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |  |  |  |
Related party transaction prepayment period | 90 days |  |  |  |  |
Aggregate principal amount cancelled | 105,000,000 mnkd_AvailableLoanBalanceCancelled / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |  |  |  |
Principal stockholder | Loan Arrangement | Maximum |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Amount prepaid for cancellation of indebtedness | 200,000,000 mnkd_RelatedPartyTransactionDebtInstrumentPrepayment / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionAxis = mnkd_LoanArrangementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |  |  |  |
Principal stockholder | Loan Arrangement | Minimum |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Number of months advances outstanding | 12 months |  |  |  |  |
Principal stockholder | Amended Agreement |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Promissory note maturity date |  |  |  | Jan. 05, 2020 |  |
Principal indebtedness cancelled under the loan arrangement as payment for the aggregate exercise price of The Mann Group Warrants |  |  |  | 78,000,000 mnkd_PrincipalIndebtednessCancelledUnderLoanArrangementAsPaymentForAggregateExercisePriceOfWarrants / us-gaap_RelatedPartyTransactionAxis = mnkd_AmendedAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |
Accrued interest that became due and payable upon cancellation of the of principal indebtedness, to be capitalized |  |  |  | $ 7,900,000 us-gaap_InterestPayableCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionAxis = mnkd_AmendedAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_PrincipalOwnerMember |  |
Related Party Debt | Letter Agreement |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Description of variable rate interest | The interest rate will increase to the one-year LIBOR rate calculated on the date of the initial advance or in effect on the date of default, whichever is greater, plus 5% per annum. |  |  |  |  |
Related Party Debt | Letter Agreement | LIBOR |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Interest rate (LIBOR) | 5.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_RelatedPartyTransactionAxis = mnkd_LetterAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mnkd_RelatedPartyDebtMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |  |

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- Definition Accrued interest of related party debt. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Available borrowings under the loan agreement. + References No definition available. + Details
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Namespace Prefix: | mnkd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Available Loan Balance Cancelled + References No definition available. + Details
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Namespace Prefix: | mnkd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Borrowing rate. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Loan agreement with related party. + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Number of months advances outstanding. + References No definition available. + Details
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- Definition Payments for Use of Aircrafts + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Principal Indebtedness Cancelled Under Loan Arrangement As Payment For Aggregate Exercise Price Of Warrants + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Related Party Transaction Debt Instrument Prepayment + References No definition available. + Details
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Namespace Prefix: | mnkd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Related party transaction prepayment period. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of interest payable on debt, including, but not limited to, trade payables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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Period Type: | duration

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- Details
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- Details
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- Details
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