Employee Benefit Plans (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Oct. 15, 2019	Apr. 03, 2019
Defined Benefit Plan Disclosure [Line Items]
Transfer of pension plan asset to life insurance company						$ 73.5	$ 100.0
transfer of pension plan obligation to Life Insurance company						$ 77.9	$ 105.6
non-cash pension settlement loss	$ (38.6)	$ 60.6	$ 0.6	$ 99.2	$ 0.4
Reclassification pension benefit obligations to AOCL	$ 4.4	$ 5.6
UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation (as a percent)			82.00%
Plan assets (as a percent)			75.00%
Components of fair value in our plan assets			75.00%
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on assets assumption (as a percent)			3.31%	3.92%	4.19%
Discount rate (as a percent)	2.15%		1.48%	2.15%
CANADA
Defined Benefit Plan Disclosure [Line Items]
Components of fair value in our plan assets			11.00%
UNITED KINGDOM
Defined Benefit Plan Disclosure [Line Items]
Components of fair value in our plan assets			14.00%
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated prior service (cost) credits			$ (0.2)
Estimated actuarial gains (losses)			$ (6.9)
Long-term rate of return on assets assumption (as a percent)			6.50%	6.50%	6.50%
Discount rate (as a percent)	3.19%		2.40%	3.19%
Fixed Income, Money Market, Cash and Guaranteed Investment Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)			50.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)			50.00%
International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)			6.00%
U.S. Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)			44.00%