Borrowings - Blackstone Credit Facility - Additional Information (Detail) - USD ($)			1 Months Ended	9 Months Ended
	Sep. 30, 2025	Aug. 06, 2025	Aug. 31, 2019	Sep. 30, 2025	Oct. 07, 2025	Aug. 24, 2025	Dec. 31, 2020
Debt Instrument [Line Items]
Maturity date			Dec. 31, 2025
Subsequent Event \| Credit Agreement Amendment
Debt Instrument [Line Items]
Principal amount					$ 325,000,000
Blackstone Credit Facility
Debt Instrument [Line Items]
Maturity date				Aug. 06, 2030
Interest rate description				The term loans thereunder bear interest at a rate per annum equal to, (i) in the case of a Base Rate Loan, the greatest of (a) the prime rate in effect on such day, (b) the federal funds rate in effect on such day plus 0.5%, (c) Adjusted Term SOFR (defined below) for a one-month’s tenor in effect on such day plus 1%, and (d) 3.0% plus a margin of 3.75%, or (ii) in the case of a SOFR Loan, the one, three or six month term SOFR (at the Company’s election), subject to a 2.00% floor (the “Adjusted Term SOFR”), plus a margin of 4.75%. In addition, upon the occurrence and continuation of an event of default under the Amended Credit Agreement, interest on the term loans accrues at the applicable rate plus 2.00% per annum. As of September 30, 2025, the effective interest rate is 9.62% per annum. Interest is paid quarterly or, if the Company elects 1-month SOFR, monthly. The interest rate margin increases to 4.00% in the case of a Base Rate Loan and 5.00% in the case of a SOFR Loan at any time the Company’s ratio of indebtedness to adjusted EBITDA (measured on a trailing four quarter basis) is greater than or equal to 5.00:1.00 as of the most recent fiscal quarter for which the Company has delivered financial statements. Term loans under the Amended Credit Agreement are funded net of an upfront fee payable by the Company. The Company shall pay the delayed draw term loan lenders a ticking fee at a rate per annum equal to 1.00% of the daily unused portion of the delayed draw term loan commitments beginning on the one year anniversary of the agreement through the end of the delayed draw commitment period, payable quarterly in arrears.All term loans under the Blackstone Credit Facility, as well as any accrued and unpaid interest and fees, are repayable on the Maturity Date. The Company has the option to prepay the loans under the Blackstone Credit Facility in whole or in part, subject to early prepayment fees in an amount equal to (a) the greater of (i) the present value of the sum of (x) 3.00% of the principal amount to be prepaid as if that amount would otherwise be prepaid on the first anniversary of the Closing Date, and (y) the amount of all interest which would otherwise have accrued under the Amended Credit Agreement for the period from the date of such prepayment to the first anniversary of the Closing Date, assuming an interest rate for such period equal to the sum of the applicable margin for SOFR Loans plus Adjusted Term SOFR as of the date of determination, computed using a discount rate equal to the treasury rate as of such date plus 50 basis points (the “Make Whole Premium”) and (ii) 3.00% of the principal amount to be prepaid if prepayment occurs on or prior to the first anniversary of the Closing Date, (b) 3.00% of principal prepaid if prepayment occurs after the first anniversary of the Closing Date but on or prior to the second anniversary of the Closing Date, (c) 1.00% of principal prepaid if prepayment occurs after the second anniversary of the Closing Date and prior to or on the third anniversary of the Closing Date and (d) 0.00% after the date that is the third anniversary of the Closing Date. In addition, subject to the terms and conditions of the Amended Credit Agreement, the Company is required to make a mandatory prepayment of the term loans upon occurrence of certain events such as upon certain assets sales, events of loss, incurrence of debt not permitted to be incurred under the Amended Credit Agreement, or a change of control of our company.
Interest rate SOFR		4.75%
Indebtedness to adjusted EBITDA ratio		5
Net proceeds	$ 73,400,000
Unamortized debt issuance cost	$ 1,600,000			$ 1,600,000
Debt instrument effective interest rate	9.62%			9.62%
Blackstone Credit Facility \| Federal Funds Rate
Debt Instrument [Line Items]
Debt instrument effective interest rate		0.50%
Blackstone Credit Facility \| SOFR
Debt Instrument [Line Items]
Interest rate floor		2.00%
Interest rate SOFR		2.00%
Interest rate margin increase		5.00%
Debt instrument effective interest rate		1.00%
Blackstone Credit Facility \| Base Rate
Debt Instrument [Line Items]
Interest rate SOFR		3.75%
Interest rate margin increase		4.00%
Blackstone Credit Facility \| Additional Rate
Debt Instrument [Line Items]
Interest rate SOFR		3.00%
Blackstone Credit Facility \| Credit Agreement Amendment
Debt Instrument [Line Items]
Financial covenant liquidity		$ 40,000,000
On or Prior to First Anniversary of Closing Date \| Blackstone Credit Facility
Debt Instrument [Line Items]
Additional interest rate on prepayment		3.00%
After First Anniversary of Closing Date but on or Prior to Second Anniversary of Closing Date
Debt Instrument [Line Items]
Debt instrument effective interest rate							8.25%
After First Anniversary of Closing Date but on or Prior to Second Anniversary of Closing Date \| Blackstone Credit Facility
Debt Instrument [Line Items]
Additional interest rate on prepayment		3.00%
After second Anniversary of Closing Date and prior to or on Third Anniversary of Closing Date \| Blackstone Credit Facility
Debt Instrument [Line Items]
Additional interest rate on prepayment		1.00%
After Third Anniversary of Closing Date \| Blackstone Credit Facility
Debt Instrument [Line Items]
Additional interest rate on prepayment		0.00%
Delayed Draw Term Loan \| Blackstone Credit Facility
Debt Instrument [Line Items]
Unused commitments fee		1.00%
Term Loans \| Blackstone Credit Facility
Debt Instrument [Line Items]
Term loan		$ 500,000,000
Initial Term Loans \| Blackstone Credit Facility
Debt Instrument [Line Items]
Term loan		75,000,000
Delayed Draw Term Loan Commitments \| Blackstone Credit Facility
Debt Instrument [Line Items]
Term loan		$ 125,000,000
Option draw period		24 months
Delayed Draw Term Loan Commitments \| Blackstone Credit Facility \| Credit Agreement Amendment
Debt Instrument [Line Items]
Term loan						$ 125,000,000
Delayed Draw Term Loans \| Blackstone Credit Facility \| Credit Agreement Amendment
Debt Instrument [Line Items]
Term loan						250,000,000
Delayed Draw Term Loans \| Maximum \| Blackstone Credit Facility \| Credit Agreement Amendment
Debt Instrument [Line Items]
Term loan						75,000,000
Uncommitted Delayed Draw Term Loans \| Blackstone Credit Facility
Debt Instrument [Line Items]
Term loan		$ 300,000,000
Additional Delayed Draw Term Loan \| Blackstone Credit Facility \| Credit Agreement Amendment
Debt Instrument [Line Items]
Term loan						$ 175,000,000

MANNKIND CORP 10-Q