Employee Benefit Plans (Textuals) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Percentage of medical coverage cost payable by participants	100.00%
U.S. Based Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation (as a percent)	88.00%
Plan assets (as a percent)	88.00%
Long-term rate of return on assets assumption (as a percent)	7.50%
Components of fair value in our plan assets	88.00%
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated prior service (cost) credits	$ (0.2)
Estimated actuarial gains (losses)	$ (8.9)
Long-term rate of return on assets assumption (as a percent)	7.50%	7.50%	8.00%
Discount rate (as a percent)	4.17%	4.51%
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated prior service (cost) credits	$ 2.4
Estimated actuarial gains (losses)	$ (1.4)
Long-term rate of return on assets assumption (as a percent)	0.00%	0.00%	0.00%
Discount rate (as a percent)	3.50%	3.55%
Canadian Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Components of fair value in our plan assets	6.00%
United Kingdom Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Components of fair value in our plan assets	6.00%
Fixed Income, Money Market, Cash and Guaranteed Investment Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)	58.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)	42.00%
International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)	17.00%
U.S. Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target (as a percent)	25.00%