Offerings	Oct. 04, 2025 USD ($) shares
Offering: 1
Offering:
Fee Previously Paid	true
Other Rule	true
Security Type	Other
Security Class Title	Units, each consisting of one ordinary share, $0.0001 par value, and one right
Amount Registered \| shares	23,000,000
Proposed Maximum Offering Price per Unit	10.00
Maximum Aggregate Offering Price	$ 230,000,000.00
Amount of Registration Fee	$ 35,213.00
Offering Note	Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Includes up to 3,000,000 units which may be issued upon exercise of a 45-day option granted to the underwriters to cover over-allotments, if any. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions.
Offering: 2
Offering:
Fee Previously Paid	true
Other Rule	true
Security Type	Equity
Security Class Title	Ordinary shares included as part of the units
Amount Registered \| shares	23,000,000
Amount of Registration Fee	$ 0.00
Offering Note	Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Includes up to 3,000,000 units which may be issued upon exercise of a 45-day option granted to the underwriters to cover over-allotments, if any. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions.
Offering: 3
Offering:
Fee Previously Paid	true
Other Rule	true
Security Type	Equity
Security Class Title	Rights included as part of the units
Amount Registered \| shares	23,000,000
Amount of Registration Fee	$ 0.00
Offering Note	Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Includes up to 3,000,000 units which may be issued upon exercise of a 45-day option granted to the underwriters to cover over-allotments, if any. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions.
Offering: 4
Offering:
Fee Previously Paid	true
Other Rule	true
Security Type	Equity
Security Class Title	Ordinary shares underlying the Rights included as part of the Units
Amount Registered \| shares	2,300,000
Proposed Maximum Offering Price per Unit	10.00
Maximum Aggregate Offering Price	$ 23,000,000.00
Amount of Registration Fee	$ 3,521.30
Offering Note	Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Includes up to 3,000,000 units which may be issued upon exercise of a 45-day option granted to the underwriters to cover over-allotments, if any. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act. Pursuant to Rule 416(a), there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share splits, share capitalizations or similar transactions.

Iron Horse Acquisition II Corp. S-1/A