S-K 1603(b) Conflicts of Interest	Aug. 18, 2025
SPAC Officers and Directors [Member]
SPAC Sponsor, Conflict of Interest [Line Items]
Conflict of Interest, Description [Text Block]	Our officers and directors are not required to, and will not, commit their full time to our affairs, which may result in a conflict of interest in allocating their time between our operations and our search for a business combination and their other businesses. We do not intend to have any full-time employees prior to the completion of our initial business combination. Each of our officers is engaged in several other business endeavors for which he may be entitled to substantial compensation, and our officers are not obligated to contribute any specific number of hours per week to our affairs.
SPAC Initial Shareholders [Member]
SPAC Sponsor, Conflict of Interest [Line Items]
Conflict of Interest, Description [Text Block]	Our initial shareholders purchased founder shares prior to the date of this prospectus and will purchase private placement warrants in a transaction that will close simultaneously with the closing of this offering. Our sponsor, officers and directors have entered into a letter agreement with us, pursuant to which they have agreed to waive their redemption rights with respect to their founder shares and public shares in connection with the completion of our initial business combination. Additionally, our sponsor, officers and directors have agreed to waive their rights to liquidating distributions from the trust account with respect to their founder shares if we fail to complete our initial business combination within the prescribed time frame, although they will be entitled to liquidating distributions from assets outside the trust account. If we do not complete our initial business combination within the prescribed time frame, the private placement warrants will expire worthless. Furthermore, our sponsor, officers and directors have agreed not to transfer, assign or sell any of their founder shares and any Class A ordinary shares issuable upon conversion thereof until the earlier to occur of: (i) one year after the completion of our initial business combination or (ii) the date following the completion of our initial business combination on which we complete a liquidation, merger, share exchange or other similar transaction that results in all of our shareholders having the right to exchange their ordinary shares for cash, securities or other property. Notwithstanding the foregoing, if the closing price of our Class A ordinary shares equals or exceeds $12.00 per share (as adjusted for share sub-divisions, share capitalizations, share consolidations, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after our initial business combination, the founder shares will be released from the lockup. The private placement warrants (including the Class A ordinary shares issuable upon exercise of the private placement warrants) will not be transferable until 30 days following the completion of our initial business combination. Because certain of our officers and directors will own ordinary shares or warrants directly or indirectly, they may have a conflict of interest in determining whether a particular target business is an appropriate business with which to effectuate our initial business combination.
Officers and Directors [Member]
SPAC Sponsor, Conflict of Interest [Line Items]
Conflict of Interest, Description [Text Block]	Our officers and directors may have a conflict of interest with respect to evaluating a particular business combination if the retention or resignation of any such officers and directors was included by a target business as a condition to any agreement with respect to our initial business combination.
Independent Directors[Member]
SPAC Sponsor, Conflict of Interest [Line Items]
Conflict of Interest, Description [Text Block]	Our independent directors will receive an indirect interest in up to 15,000 founder shares per director through membership interests in our sponsor, but will have no right to control the sponsor or participate in any decision regarding the disposal of any security held by the sponsor, or otherwise.

M3-Brigade Acquisition VI Corp. S-1/A