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Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended		8 Months Ended	9 Months Ended	11 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Increase decrease in derivative liabilities	$ 1.2	$ 5.3	$ 8.8	$ 22.9
Increase in fair value of derivative warrant liabilities					$ 6.7

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- Definition

Increase in fair value of derivative warrant liabilities.

+ References

No definition available.

+ Details

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Namespace Prefix:	roni_
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Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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- Definition

Amount of increase (decrease) in fair value adjustment on other assets (liabilities) carried at fair value under the fair value option on the statement of cash flows of Federal Home Loan Banks (FHLBanks).

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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