XML 23 R11.htm IDEA: XBRL DOCUMENT v3.22.1
Investments in Marketable Securities
 3 Months Ended
Mar. 31, 2022
Marketable Securities [Abstract]  
Investments in Marketable Securities Investments in Marketable Securities
The following table summarizes the cost, gross unrealized gains, gross unrealized losses, and fair value of Investments in marketable securities:
 December 31,
2021		March 31,
2022
Cost$73.2 $81.7 
Unrealized gains8.1 5.6 
Unrealized losses(2.8)(6.2)
Fair value$78.5 $81.1 
As of December 31, 2021 and March 31, 2022, Investments in marketable securities include consolidated Affiliate sponsored investment products with fair values of $42.9 million and $41.5 million, respectively.