Summary of Significant Accounting Policies - Employee Benefits (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Employee Benefits
Employees' contributions	3.00%
Participant contribution	5.00%
Contribution to the Redbox 401(k) plan	$ 1.5	$ 0.6
Scenario One
Employee Benefits
Employers' contributions	100.00%
Employees' contributions	2.00%
Scenario Two
Employee Benefits
Employers' contributions	50.00%
Employees' contributions	4.00%

Amount of cost for defined contribution plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480794/715-70-50-1

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