Condensed Balance Sheet (Unaudited)	Sep. 30, 2019 USD ($)
Current assets:
Cash and cash equivalents	$ 1,223,868
Prepaid expenses	366,667
Total current assets	1,590,535
Marketable securities held in Trust Account	451,483,512
Total assets	453,074,047
Current liabilities:
Accounts payable and accrued expenses	102,125
Accounts payable - related party	52,256
Income taxes payable	345,918
Total current liabilities	500,299
Deferred underwriting commissions	15,750,000
Total liabilities	16,250,299
Commitments and contingencies:
Class A common stock, $0.0001 par value; 500,000,000 shares authorized; 43,182,374 shares subject to possible redemption at redemption value	431,823,740
Stockholders' equity:
Preferred stock, $0.0001 par value; 1,000,000 shares authorized; none issued and outstanding
Additional paid-in capital	3,837,479
Retained earnings	1,161,222
Total stockholders' equity	5,000,008
Total liabilities and stockholders' equity	453,074,047
Common Class A [Member]
Stockholders' equity:
common stock	182
Total stockholders' equity	182
Common Class B [Member]
Stockholders' equity:
common stock	1,125
Total stockholders' equity	$ 1,125

No definition available.

Name:	cpaau_DeferredUnderwritingCommission
Namespace Prefix:	cpaau_
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.