Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Financial Assets And Liabilities At Carrying and Fair Value

A summary of financial assets and liabilities that are measured at fair value on a recurring basis were as follows ($ in millions):

	Quoted Prices in Active Market (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
December 31, 2021:
Liabilities:
Interest rate swap derivative contracts	$	—	$	2.2	$	—	$	2.2
Cross-currency swap derivative contracts	$	—	$	17.4	$	—	$	17.4
Deferred compensation plans	$	—	$	16.5	$	—	$	16.5
December 31, 2020:
Liabilities:
Interest rate swap derivative contracts	$	—	$	8.3	$	—	$	8.3
Cross-currency swap derivative contracts	$	—	$	61.8	$	—	$	61.8
Deferred compensation plans	$	—	$	11.8	$	—	$	11.8

The carrying amounts and fair values of the Company’s financial instruments as if December 31, were as follows ($ in millions):

	2021				2020
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Liabilities:
Interest rate swap derivative contracts	$	2.2	$	2.2	$	8.3	$	8.3
Cross-currency swap derivative contracts	$	17.4	$	17.4	$	61.8	$	61.8
Convertible senior notes due 2025	$	432.1	$	1,162.5	$	411.1	$	902.7
Long-term debt	$	883.4	$	883.4	$	907.7	$	907.7