Condensed Balance Sheets - USD ($)	Jun. 30, 2026	Dec. 31, 2025
Current assets
Cash	$ 821,425	$ 1,096,942
Prepaid expense	46,613	3,740
Prepaid insurance	88,116	98,356
Total current assets	956,154	1,199,038
Long-term prepaid insurance		38,534
Cash and investments held in Trust Account	239,776,741	235,633,565
Total Assets	240,732,895	236,871,137
Current Liabilities
Accrued offering costs		75,000
Accounts payable and accrued expenses	346,536	74,547
Due to affiliates	50,993	29,694
Total current liabilities	397,830	179,542
Deferred underwriting fee payable	9,200,000	9,200,000
Total Liabilities	9,597,830	9,379,542
Class A ordinary shares subject to possible redemption, 23,000,000 shares issued and outstanding at a redemption value of $10.33 and $10.24 per share as of March 31, 2026 and December 31, 2025, respectively	239,776,741	235,633,565
Shareholders’ Deficit
Accumulated deficit	(8,642,509)	(8,142,803)
Total Shareholders’ Deficit	(8,641,676)	(8,141,970)
Total Liabilities and Shareholders’ Deficit	240,732,895	236,871,137
Related Party
Current Liabilities
Promissory note - related party	301	301
Class A Ordinary Shares
Shareholders’ Deficit
Ordinary shares value	66	66
Class B Ordinary Shares
Shareholders’ Deficit
Ordinary shares value	$ 767	$ 767

Represent the amount of accrued offering costs.

No definition available.

Name:	cra_AccruedOfferingCosts
Namespace Prefix:	cra_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.