CONDENSED BALANCE SHEETS - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash	$ 1,385,291
Prepaid expenses	414,746	$ 10,309
Total current assets	1,800,037	10,309
Deferred offering costs		33,000
Investments held in Trust Account	345,001,586
Total Assets	346,801,623	43,309
Current liabilities:
Accounts payable	65,450
Accrued expenses	393,300	33,000
Total current liabilities	458,750	33,000
Deferred underwriting commissions	12,075,000
Due to related party	4,820
Derivative warrant liabilities	13,728,750
Total liabilities	26,267,320	33,000
Commitments and Contingencies
Shareholders' Equity
Preference shares, $0.0001 par value; 5,000,000 shares authorized; none issued and outstanding
Additional paid-in capital	6,172,654	24,137
Accumulated deficit	(1,173,808)	(14,691)
Total shareholders' equity	5,000,003	10,309
Total Liabilities and Shareholders' Equity	346,801,623	43,309
Class A Ordinary Shares
Current liabilities:
Class A ordinary shares, $0.0001 par value; 31,553,430 and -0- shares subject to possible redemption at $10.00 per share as of March 31, 2021 and December 31, 2020, respectively	315,534,300
Shareholders' Equity
Common stock value	294
Total shareholders' equity	294
Class B Ordinary Shares
Shareholders' Equity
Common stock value	863	863
Total shareholders' equity	$ 863	$ 863

Deferred underwriting commission noncurrent.

No definition available.

Name:	snii_DeferredUnderwritingCommissionNoncurrent
Namespace Prefix:	snii_
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).