XML 39 R29.htm IDEA: XBRL DOCUMENT v3.21.1

Note 4 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

			2021								2020
	Fair Value		Carrying				Estimated				Carrying				Estimated
	Hierarchy		Value				Fair Value				Value				Fair Value
Financial instruments not carried at fair value:
Senior notes (Note 10)	Level 2		$	3,141.1			$	3,426.9			$	3,140.8			$	3,652.2

X

- Definition

Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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