Employees (Tables)

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan

Financial information related to our pension plans is presented below:

	Year Ended December 31,
	2019			2018
Change in projected benefit obligation:
Benefit obligation at beginning of year	$	131.0		$	146.9
Service cost	—			0.4
Interest cost	5.4			5.2
Actuarial loss (gain)	13.6			(9.9		)
Benefits paid	(5.3		)	(9.1		)
Other (effect of curtailment/settlement)	(13.2		)	(2.5		)
Projected benefit obligations at end of year	$	131.5		$	131.0
Change in plan assets:
Fair value of plan assets at beginning of year	$	115.7		$	108.8
Actual gain (loss) on plan assets	29.5			(8.2		)
Employer contribution	1.4			24.2
Benefits paid	(5.3		)	(9.1		)
Other (effect of curtailment/settlement)	(13.2		)	—
Fair value of plan assets at end of year	$	128.1		$	115.7
Reconciliation of funded status:
Fair value of plan assets at end of year	$	128.1		$	115.7
Less projected benefit obligations at end of year	131.5			131.0
Under-funded status at end of year	$	(3.4	)	$	(15.3	)

Schedule of Net Periodic Benefit Cost Not yet Recognized

The pre-tax amounts in accumulated other comprehensive loss that have not yet been recognized as components of net periodic benefit cost were as follows:

	December 31,
	2019			2018
Net actuarial loss	$	(0.1	)	$	5.5
Prior service credit	—			—
Projected benefit obligations at end of year	$	(0.1	)	$	5.5

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets

The accumulated benefit obligation for each of our pension plans was in excess of the fair value of plan assets. The projected benefit obligation, accumulated benefit obligation and fair value of plan assets for the pension plans were as follows:

	December 31,
	2019		2018
Projected benefit obligation	$	131.5	$	131.0
Accumulated benefit obligation	$	131.6	131.0
Fair value of plan assets	$	128.1	115.7

Schedule of Assumptions Used

The weighted-average assumptions used to determine benefit obligations were as follows:

	December 31,
	2019		2018
Discount rate	3.20	%	4.15	%
Rate of compensation increase	N/A		N/A

The weighted-average assumptions used to determine net periodic benefit costs were as follows:

	Year Ended December 31,
	2019		2018		2017
Discount rate	4.15	%	3.60	%	3.80	%
Expected long-term rate of return on plan assets	7.00	%	7.33	%	7.45	%
Rate of compensation increase	—	%	3.00	%	3.00	%

Schedule of Net Benefit Costs

The components of net periodic benefit cost related to our benefit plans consisted of the following:

	Year Ended December 31,
Components of net periodic benefit:	2019			2018			2017
Service cost	$	—		$	0.4		$	1.2
Interest cost	5.4			5.2			2.7
Expected return on plan assets	(7.5		)	(8.0		)	(2.7		)
Recognition of gain due to settlement	—			(0.1		)	—
Recognition of gain due to curtailment	(2.7		)	(2.4		)	(6.1		)
Net periodic benefit	$	(4.8	)	$	(4.9	)	$	(4.9	)

Schedule of Allocation of Plan Assets

The weighted-average asset allocation of our pension benefits plan assets were as follows:

	Year Ended December 31,
	2019		2018
Asset Category:
Equity securities	40.0	%	66.4	%
Debt securities	60.0	%	26.8	%
Real estate investment trust	—	%	6.8	%
Total	100.0	%	100.0	%

The fair value of our pension assets by category were as follows:

	Quoted Prices in Active Markets For Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Consolidated Total
Year Ended December 31, 2019
Equity securities:
U.S. companies	$	—	$	38.5	$	—	$	38.5
International companies	—		12.8		—		12.8
Debt securities:
Preferred securities	—		—		—		—
Bond securities	—		76.8		—		76.8
Real estate securities	—		—		—		—
Total	$	—	$	128.1	$	—	$	128.1
Year Ended December 31, 2018
Equity securities:
U.S. companies	$	—	$	62.8	$	—	$	62.8
International companies	—		14.0		—		14.0
Debt securities:
Preferred securities	—		4.4		—		4.4
Bond securities	—		26.6		—		26.6
Real estate securities	—		7.9		—		7.9
Total	$	—	$	115.7	$	—	$	115.7