Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Current Assets
Cash	$ 16,862	$ 17,251
Prepaid expenses	51,847	73,418
Total Current Assets	68,709	90,669
Investments held in Trust Account	77,578,527	76,902,330
Total Assets	77,647,236	76,992,999
Current Liabilities
Accounts payable and accrued expenses	93,434	16,567
Total Current Liabilities	251,105	168,238
Deferred underwriting commission payable	1,495,000	1,495,000
Total Liabilities	1,746,105	1,663,238
Commitments and Contingencies (Note 6)
Shareholders’ Deficit:
Preference shares, $0.0001 par value, 5,000,000 shares authorized, none issued and outstanding
Additional paid-in capital
Accumulated deficit	(1,677,647)	(1,572,820)
Total Shareholders’ Deficit	(1,677,396)	(1,572,569)
Total Liabilities and Shareholders’ Deficit	77,647,236	76,992,999
Class A Ordinary Shares
Current Liabilities
Class A ordinary shares subject to possible redemption, 7,475,000 shares at redemption value of $10.38 per share and $10.29 as of March 31, 2026 and December 31, 2025, respectively	77,578,527	76,902,330
Shareholders’ Deficit:
Ordinary shares, Value	114	114
Class B Ordinary Shares
Shareholders’ Deficit:
Ordinary shares, Value	137	137
Related Party
Current Liabilities
Working capital loan - related party	$ 157,671	$ 151,671

The amount of working capital loan - related party.

No definition available.

Name:	chpgu_WorkingCapitalLoanRelatedParty
Namespace Prefix:	chpgu_
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.