Employee Benefit Plans (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan Amount of Employer Matching Contribution	50.00%		100.00%
Defined Contribution Plan Amount of Eligible Employee Contribution	2.00%		3.00%
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 150.5
Fair value of plan assets at end of year	157.2	$ 150.5
Other Pension Plan, Postretirement or Supplemental Plans [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	4.2	4.9
Fair value of plan assets at end of year	$ 3.4	4.2	$ 4.9
Assets expected to be returned to the Company during 2016	0
Pension Plan [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 150.5	162.9
Fair value of plan assets at end of year	157.2	150.5	162.9
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	3.7
Fair value of plan assets at end of year	0.0	3.7
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	143.4
Fair value of plan assets at end of year	154.4	143.4
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	3.4	3.5
Unrealized gains relating to instruments still held at the reporting date	(0.6)	(0.1)
Fair value of plan assets at end of year	2.8	3.4	$ 3.5
Fixed Income Funds [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	52.6
Fair value of plan assets at end of year	$ 54.0	52.6
Fixed Income Funds [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	35.00%
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 0.0
Fair value of plan assets at end of year	0.0	0.0
Fixed Income Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	52.6
Fair value of plan assets at end of year	54.0	52.6
Fixed Income Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
Equity Funds (U.S. large cap) [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	55.1
Fair value of plan assets at end of year	61.8	55.1
Equity Funds (U.S. large cap) [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
Equity Funds (U.S. large cap) [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	55.1
Fair value of plan assets at end of year	61.8	55.1
Equity Funds (U.S. large cap) [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
Equity Funds (U.S. small cap) [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	10.1
Fair value of plan assets at end of year	10.6	10.1
Equity Funds (U.S. small cap) [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
Equity Funds (U.S. small cap) [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	10.1
Fair value of plan assets at end of year	10.6	10.1
Equity Funds (U.S. small cap) [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
International Equity Funds [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	25.6
Fair value of plan assets at end of year	28.0	25.6
International Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
International Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	25.6
Fair value of plan assets at end of year	28.0	25.6
International Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
Venture Capital Funds [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	3.4
Fair value of plan assets at end of year	2.8	3.4
Venture Capital Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
Venture Capital Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year	0.0	0.0
Venture Capital Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	3.4
Fair value of plan assets at end of year	2.8	3.4
Common Stock [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	3.7
Fair value of plan assets at end of year		3.7
Common Stock [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	3.7
Fair value of plan assets at end of year		3.7
Common Stock [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0.0
Fair value of plan assets at end of year		0.0
Common Stock [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 0.0
Fair value of plan assets at end of year		$ 0.0