Significant Accounting Policies - Investments (Narrative) (Details) - Fair Value, Recurring - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Change in Accounting Estimate [Line Items]
Short-term investments	$ 31.6	$ 39.2
Level 2
Change in Accounting Estimate [Line Items]
Short-term investments	$ 31.6	$ 39.2

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

Name:	us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant