XML 58 R33.htm IDEA: XBRL DOCUMENT v3.25.0.1

MARKETABLE INVESTMENT SECURITIES (Tables)

12 Months Ended

Dec. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Fair Value for Available-for-Sale Securities by Major Security Type and Class of Security

The amortized cost, gross unrealized holding losses, and fair value for debt securities classified as available-for-sale securities by major security type and class of security at December 31, 2023 were as follows:

(in millions)			Amortized cost												Gross unrealized holding losses						Estimated fair value
December 31, 2023:
Cash and cash equivalents:
Cash			$	129.9											$	—					$	129.9
Cash equivalents			2.2												—						2.2
Total cash and cash equivalents			132.1												—						132.1
Available-for-sale:
Corporate bonds and notes			8.4												(0.1)						8.3
Municipal bonds			0.5												—						0.5
Total			$	141.0											$	(0.1)					$	140.9

X

- References

No definition available.

+ Details

Name:	us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration