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Fair Value Measurements (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended
Sep. 30, 2017
Dec. 31, 2022
Dec. 31, 2021
Fair Value Measurements (Details) [Line Items]      
Net change in unrealized gain (loss)   $ 2.3 $ (10.3)
Investment transferred in/out, description   Reclassifications impacting Level 3 of the fair value hierarchy are reported as transfers in/out of the Level 3 category as of the beginning of the quarter in which the reclassifications occur. During the three months ended December 31, 2022, no investments were transferred out of Level 3 and one investment was transferred into Level 3. During the three months ended December 31, 2021, one of our investments transferred out of Level 3 and no investments transferred into Level 3.  
Membership interest percentage 5.00%    
Aggregate fair value $ 2.4    
Lydell Jewelry Design Studio, LLC [Member]      
Fair Value Measurements (Details) [Line Items]      
Membership interest percentage 3.80%