Benefit Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Benefit Plans [Abstract]
Employee vesting period for defined benefit plans (in years)	5 years
Change in plan assets [Roll Foward]
Fair value of plan assets beginning of year	$ 212,000,000
Fair value of plan assets at end of year	240,700,000	212,000,000
Amounts recognized in Balance Sheet [Abstract]
Non-current liability	(57,893,000)	(108,035,000)
Amounts recognized in accumulated other comprehensive income [Abstract]
Accumulated benefit obligation	269,000,000	287,100,000
Weighted average assumptions used to determine net periodic benefit cost [Abstract]
Discount rate (in hundredths)	3.80%	4.32%	5.70%
Expected return on plan assets (in hundredths)	7.18%	7.06%	7.25%
Rate of compensation increase (in hundredths)	3.16%	3.11%	3.20%
Weighted average assumptions used to determine benefit obligation [Abstract]
Discount rate (in hundredths)	4.37%	3.77%	4.30%
Rate of compensation increase (in hundredths)	3.10%	3.14%	3.10%
Actual return (loss) on pension assets (in hundredths)	14.00%	9.00%	2.00%
Maximum health care cost trend rate (in hundredths)	5.00%
Weighted average asset allocations [Abstract]
Weighted average asset allocation percentages, Total (in hundredths)	100.00%	100.00%
Weighted average asset allocations value [Abstract]
Total value	240,700,000	212,000,000
Fair value of plan assets [Abstract]
Fair value of plan assets	240,700,000	212,000,000
Fair value of plan assets	240,700,000	212,000,000
Estimated future benefit payments [Abstract]
Average rate of return on assets (in hundredths)	10.00%
Company's contributions to employee voluntary savings and investment plan	2,800,000	2,800,000	2,800,000
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	189,500,000	162,600,000
Fair value of plan assets [Abstract]
Fair value of plan assets	189,500,000	162,600,000
Fair value of plan assets	189,500,000	162,600,000
Significant Other Observable Inputs (Level 2) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	30,600,000	31,000,000
Fair value of plan assets [Abstract]
Fair value of plan assets	30,600,000	31,000,000
Fair value of plan assets	30,600,000	31,000,000
Significant Unobservable Inputs (Level 3) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	20,600,000	18,400,000
Fair value of plan assets [Abstract]
Fair value of plan assets	20,600,000	18,400,000
Fair value of plan assets	20,600,000	18,400,000
Equity Securities [Member]
Weighted average asset allocations [Abstract]
Weighted average asset allocation percentages, Total (in hundredths)	56.40%	56.40%
Weighted average asset allocations value [Abstract]
Total value	135,900,000	119,500,000
Estimated future benefit payments [Abstract]
Target long-term investment portfolio mix (in hundredths)	65.00%
Actual investment portfolio mix (in hundredths)	65.00%
Equity Securities [Member] | US Equities [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	116,800,000	104,500,000
Fair value of plan assets [Abstract]
Fair value of plan assets	116,800,000	104,500,000
Fair value of plan assets	116,800,000	104,500,000
Equity Securities [Member] | US Equities [Member] | Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	116,800,000	104,500,000
Fair value of plan assets [Abstract]
Fair value of plan assets	116,800,000	104,500,000
Fair value of plan assets	116,800,000	104,500,000
Equity Securities [Member] | US Equities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Equity Securities [Member] | US Equities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Equity Securities [Member] | Non-US Equities [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	19,000,000	15,000,000
Fair value of plan assets [Abstract]
Fair value of plan assets	19,000,000	15,000,000
Fair value of plan assets	19,000,000	15,000,000
Equity Securities [Member] | Non-US Equities [Member] | Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	19,000,000	15,000,000
Fair value of plan assets [Abstract]
Fair value of plan assets	19,000,000	15,000,000
Fair value of plan assets	19,000,000	15,000,000
Equity Securities [Member] | Non-US Equities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Equity Securities [Member] | Non-US Equities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Fixed Income Securities [Member]
Weighted average asset allocations [Abstract]
Weighted average asset allocation percentages, Total (in hundredths)	35.00%	34.90%
Weighted average asset allocations value [Abstract]
Total value	84,200,000	74,100,000
Estimated future benefit payments [Abstract]
Target long-term investment portfolio mix (in hundredths)	35.00%
Actual investment portfolio mix (in hundredths)	35.00%
Fixed Income Securities [Member] | Corporate Debt Instruments [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	84,300,000	74,100,000
Fair value of plan assets [Abstract]
Fair value of plan assets	84,300,000	74,100,000
Fair value of plan assets	84,300,000	74,100,000
Fixed Income Securities [Member] | Corporate Debt Instruments [Member] | Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	53,700,000	43,100,000
Fair value of plan assets [Abstract]
Fair value of plan assets	53,700,000	43,100,000
Fair value of plan assets	53,700,000	43,100,000
Fixed Income Securities [Member] | Corporate Debt Instruments [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	30,600,000	31,000,000
Fair value of plan assets [Abstract]
Fair value of plan assets	30,600,000	31,000,000
Fair value of plan assets	30,600,000	31,000,000
Fixed Income Securities [Member] | Corporate Debt Instruments [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Real Estate [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	1,100,000	1,000,000
Weighted average asset allocations [Abstract]
Weighted average asset allocation percentages, Total (in hundredths)	0.50%	0.50%
Weighted average asset allocations value [Abstract]
Total value	1,100,000	1,000,000
Fair value of plan assets [Abstract]
Fair value of plan assets	1,100,000	1,000,000
Fair value of plan assets	1,100,000	1,000,000
Real Estate [Member] | Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Real Estate [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Real Estate [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	1,100,000	1,000,000
Fair value of plan assets [Abstract]
Fair value of plan assets	1,100,000	1,000,000
Fair value of plan assets	1,100,000	1,000,000
Other [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	19,500,000	17,400,000
Weighted average asset allocations [Abstract]
Weighted average asset allocation percentages, Total (in hundredths)	8.10%	8.20%
Weighted average asset allocations value [Abstract]
Total value	19,500,000	17,400,000
Fair value of plan assets [Abstract]
Fair value of plan assets	19,500,000	17,400,000
Fair value of plan assets	19,500,000	17,400,000
Other [Member] | Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Other [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	0	0
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0
Fair value of plan assets	0	0
Other [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	19,500,000	17,400,000
Fair value of plan assets [Abstract]
Fair value of plan assets	19,500,000	17,400,000
Fair value of plan assets	19,500,000	17,400,000
Pension Benefits [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	311,400,000	271,900,000
Service cost	8,400,000	8,100,000	7,100,000
Interest cost	11,300,000	11,600,000	11,600,000
Actuarial (gain) loss	(28,000,000)	30,400,000
Benefits paid	(14,000,000)	(12,500,000)
Settlements	0	(600,000)
Foreign exchange impact	300,000	1,900,000
Other	500,000	600,000
Benefit obligation at end of year	289,900,000	311,400,000	271,900,000
Change in plan assets [Roll Foward]
Fair value of plan assets beginning of year	212,000,000	187,500,000
Actual return on plan assets	31,000,000	17,200,000
Employer contributions	10,900,000	16,400,000
Plan participants' contributions	500,000	500,000
Benefits paid	(14,000,000)	(12,500,000)
Settlements	0	(500,000)
Foreign exchange impact	300,000	3,400,000
Fair value of plan assets at end of year	240,700,000	212,000,000	187,500,000
Funded status	(49,200,000)	(99,400,000)
Amounts recognized in Balance Sheet [Abstract]
Current liability	(300,000)	(300,000)
Non-current liability	(48,900,000)	(99,100,000)
Recognized liability	(49,200,000)	(99,400,000)
Amounts recognized in accumulated other comprehensive income [Abstract]
Net actuarial (gain) loss	58,400,000	93,700,000
Prior service cost	2,200,000	3,000,000
Amount recognized end of year	60,600,000	96,700,000
Changes in Plan assets and benefit obligations recognized in other comprehensive income [Abstract]
Current year actuarial gain (loss)	26,100,000	(17,600,000)
Amortization of actuarial (gain) loss	8,800,000	8,400,000
Amortization of prior service credit (gain) loss	600,000	700,000
Total recognized in other comprehensive income	35,500,000	(8,500,000)
Components of net periodic benefit cost [Abstract]
Service cost	8,400,000	8,100,000	7,100,000
Interest cost	11,300,000	11,600,000	11,600,000
Expected return on plan assets	(14,800,000)	(13,500,000)	(13,800,000)
Amortization of prior service cost	1,000,000	1,200,000	1,300,000
Recognized net actuarial (gain) loss	13,900,000	13,300,000	8,600,000
Settlement /curtailment loss	0	200,000	500,000
Net periodic benefit cost	19,800,000	20,900,000	15,300,000
Amounts that will be amortized from Accumulated other comprehensive income (loss) in next fiscal year [Abstract]
Amortization of prior service credit (gain) loss	1,000,000
Amortization of net (gain) loss	7,200,000
Total costs to be recognized	8,200,000
Fair value of plan assets [Abstract]
Fair value of plan assets	240,700,000	212,000,000	187,500,000
Fair value of plan assets	240,700,000	212,000,000	187,500,000
Expected company contribution to its benefit plans	10,000,000
Estimated future benefit payments [Abstract]
2014	14,100,000
2015	15,400,000
2016	17,300,000
2017	18,100,000
2018	18,000,000
2019-2023	101,400,000
Post-retirement Benefits [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	10,600,000	14,400,000
Service cost	600,000	600,000	700,000
Interest cost	300,000	400,000	600,000
Actuarial (gain) loss	(1,100,000)	(4,300,000)
Benefits paid	(500,000)	(500,000)
Settlements	0	0
Foreign exchange impact	0	0
Other	0	0
Benefit obligation at end of year	9,900,000	10,600,000	14,400,000
Change in plan assets [Roll Foward]
Fair value of plan assets beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	500,000	500,000
Plan participants' contributions	0	0
Benefits paid	(500,000)	(500,000)
Settlements	0	0
Foreign exchange impact	0	0
Fair value of plan assets at end of year	0	0	0
Funded status	(9,900,000)	(10,600,000)
Amounts recognized in Balance Sheet [Abstract]
Current liability	(800,000)	(1,000,000)
Non-current liability	(9,100,000)	(9,600,000)
Recognized liability	(9,900,000)	(10,600,000)
Amounts recognized in accumulated other comprehensive income [Abstract]
Net actuarial (gain) loss	(1,600,000)	(10,100,000)
Prior service cost	(8,100,000)	(800,000)
Amount recognized end of year	(9,700,000)	(10,900,000)
Changes in Plan assets and benefit obligations recognized in other comprehensive income [Abstract]
Current year actuarial gain (loss)	700,000	2,700,000
Amortization of actuarial (gain) loss	0	(100,000)
Amortization of prior service credit (gain) loss	(1,900,000)	(1,800,000)
Total recognized in other comprehensive income	(1,200,000)	800,000
Components of net periodic benefit cost [Abstract]
Service cost	600,000	600,000	700,000
Interest cost	300,000	400,000	600,000
Expected return on plan assets	0	0	0
Amortization of prior service cost	(3,100,000)	(3,100,000)	(3,100,000)
Recognized net actuarial (gain) loss	0	(100,000)	100,000
Settlement /curtailment loss	0	0	0
Net periodic benefit cost	(2,200,000)	(2,200,000)	(1,700,000)
Amounts that will be amortized from Accumulated other comprehensive income (loss) in next fiscal year [Abstract]
Amortization of prior service credit (gain) loss	(3,100,000)
Amortization of net (gain) loss	(100,000)
Total costs to be recognized	(3,200,000)
Fair value of plan assets [Abstract]
Fair value of plan assets	0	0	0
Fair value of plan assets	0	0	0
Expected company contribution to its benefit plans	1,000,000
Estimated future benefit payments [Abstract]
2014	800,000
2015	800,000
2016	800,000
2017	700,000
2018	800,000
2019-2023	3,400,000
U.S. Plans [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	170,600,000	148,200,000	132,200,000
Fair value of plan assets [Abstract]
Fair value of plan assets	170,600,000	148,200,000	132,200,000
Fair value of plan assets	170,600,000	148,200,000	132,200,000
International Plans [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year	70,100,000	63,800,000	55,300,000
Fair value of plan assets [Abstract]
Fair value of plan assets	70,100,000	63,800,000	55,300,000
Fair value of plan assets	$ 70,100,000	$ 63,800,000	$ 55,300,000