Financial Instruments and Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of Interest Rate Derivatives [Table Text Block]

The key terms of the interest rate swaps are as follows:

	March 19, 2019 Interest Rate Swap	February 7, 2017 Interest Rate Swap
Effective date	March 29, 2019	February 28, 2017
Termination date	March 28, 2024	February 28, 2022
Term	5 years	5 years
Notional amount	$130.0	$250.0
Fixed swap rate	2.43%	1.89%

The fair values of the interest rate swaps classified as Level 2 as of December 31, 2019 and 2018, were as follows:

	Balance Sheet Location	December 31, 2019			December 31, 2018
Interest rate swap assets	Prepaid expenses and other current assets	$	—		$	4.3
Interest rate swap liabilities	Other long-term liabilities	(6.4		)	—

	Year Ended December 31,
	2019			2018			2017
Net interest paid (received)	$	0.8		$	(0.2	)	$	1.6
Gain (loss) recognized in other comprehensive income (loss)	(10.7		)	2.2			2.1