XML 30 R11.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Investments in Marketable Securities | 12 Months Ended
--- | ---
Dec. 31, 2021
Marketable Securities [Abstract] |
Investments in Marketable Securities | Investments in Marketable Securities The following is a summary of the cost, gross unrealized gains, gross unrealized losses, and fair value of Investments in marketable securities:
|  | December 31,
|  | 2020 |  | 2021
Cost |  | $ | 69.4 |  |  | $ | 73.2 |
Unrealized gains |  | 5.5 |  |  | 8.1 |
Unrealized losses |  | (0.0 | ) |  | (2.8) |
Fair value |  | $ | 74.9 |  |  | $ | 78.5 |
As of December 31, 2020 and 2021, Investments in marketable securities include consolidated Affiliate sponsored investment products with fair values of $52.3 million and $42.9 million, respectively.

X
- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
Name: | us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration