UNAUDITED CONDENSED BALANCE SHEETS - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Current Assets:
Cash	$ 358,534	$ 560,813
Prepaid expenses - current	139,217	82,032
Due from related party	6,935	15,410
Total Current Assets	504,686	658,255
Non-current Assets:
Cash and marketable securities held in Trust Account	207,450,297	205,642,100
Prepaid expenses – non-current	15,205	33,699
Total Non-current Assets	207,465,502	205,675,799
TOTAL ASSETS	207,970,188	206,334,054
Current Liabilities:
Accounts payable	121,517	107,053
Accrued expenses	1,474,518	962,012
Administrative services fee payable	0	5,000
Total Current Liabilities	1,596,035	1,074,065
Non-current Liabilities:
Deferred underwriter fee liability	7,043,750	7,043,750
Total Non-current Liabilities	7,043,750	7,043,750
TOTAL LIABILITIES	8,639,785	8,117,815
Commitments and Contingencies (Note 7)	0	0
Class A Ordinary Shares subject to possible redemption, $0.0001 par value; 20,125,000 shares issued and outstanding at redemption value	207,450,297	205,642,100
Shareholders’ Deficit
Preference shares, $0.0001 par value; 5,000,000 shares authorized; none issued or outstanding	0	0
Additional paid-in capital	0	0
Accumulated deficit	(8,120,678)	(7,426,645)
Total Shareholders’ Deficit	(8,119,894)	(7,425,861)
TOTAL LIABILITIES, ORDINARY SHARES SUBJECT TO POSSIBLE REDEMPTION AND SHAREHOLDERS’ DEFICIT	207,970,188	206,334,054
Class A Ordinary Shares Subject to Possible Redemption
Non-current Liabilities:
Class A Ordinary Shares subject to possible redemption, $0.0001 par value; 20,125,000 shares issued and outstanding at redemption value	207,450,297	205,642,100
Class A Ordinary Shares
Shareholders’ Deficit
Common stock, value, issued	77	77
Class B Ordinary Shares
Shareholders’ Deficit
Common stock, value, issued	$ 707	$ 707

Administrative services fee payable.

No definition available.

Name:	bacc_AdministrativeServicesFeePayable
Namespace Prefix:	bacc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).