Benefit Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Benefit Plans [Abstract]
Employee vesting period for defined benefit plans (in years)		5
Change in plan assets [Roll Foward]
Fair value of plan assets beginning of year		$ 187,500,000
Fair value of plan assets at end of year		212,000,000	187,500,000
Amounts recognized in Balance Sheet [Abstract]
Non-current liability		(108,035,000)	(97,318,000)
Amounts recognized in accumulated other comprehensive income [Abstract]
Accumulated benefit obligation		287,100,000	250,500,000
Amounts that will be amortized from Accumulated other comprehensive income (loss) in next fiscal year [Abstract]
Actual return (loss) on pension assets (in hundredths)		9.00%	2.00%	11.00%
Maximum health care cost trend rate (in hundredths)		5.00%
Weighted average asset allocations [Abstract]
Equity securities (in hundredths)		56.40%	56.50%
Fixed income securities (in hundredths)		34.90%	40.80%
Real estate (in hundredths)		0.50%	0.10%
Other (in hundredths)		8.20%	2.60%
Total (in hundredths)		100.00%	100.00%
Fair value of plan assets [Abstract]
Fair value of plan assets		212,000,000	187,500,000
Fair value of plan assets		212,000,000	187,500,000
Estimated future benefit payments [Abstract]
Target long-term investment portfolio mix, equity securities (in hundredths)		65.00%
Target long-term investment portfolio mix, fixed income securities (in hundredths)		35.00%
Actual long-term investment portfolio mix, equity securities (in hundredths)		0.7
Actual long-term investment portfolio mix, fixed income securities (in hundredths)		0.3
Average rate of return on assets (in hundredths)		9.50%
Company's contributions to employee voluntary savings and investment plan		2,700,000	2,700,000
Weighted average assumptions used to determine net periodic benefit cost [Abstract]
Discount rate (in hundredths)		4.32%	5.70%	5.75%
Expected return on plan assets (in hundredths)		7.06%	7.25%	7.40%
Rate of compensation increase (in hundredths)		3.11%	3.20%	3.50%
Weighted average assumptions used to determine benefit obligation [Abstract]
Discount rate (in hundredths)		3.77%	4.30%	5.70%
Rate of compensation increase (in hundredths)		3.14%	3.10%	3.20%
Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		162,600,000	165,800,000
Fair value of plan assets [Abstract]
Fair value of plan assets		162,600,000	165,800,000
Fair value of plan assets		162,600,000	165,800,000
Level 2 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		31,000,000	16,900,000
Fair value of plan assets [Abstract]
Fair value of plan assets		31,000,000	16,900,000
Fair value of plan assets		31,000,000	16,900,000
Level 3 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		18,400,000	4,800,000
Fair value of plan assets [Abstract]
Fair value of plan assets		18,400,000	4,800,000
Fair value of plan assets		18,400,000	4,800,000
US Equities [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			72,500,000
Fair value of plan assets [Abstract]
Fair value of plan assets			72,500,000
Fair value of plan assets			72,500,000
US Equities [Member] | Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			72,500,000
Fair value of plan assets [Abstract]
Fair value of plan assets			72,500,000
Fair value of plan assets			72,500,000
US Equities [Member] | Level 2 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			0
Fair value of plan assets [Abstract]
Fair value of plan assets			0
Fair value of plan assets			0
US Equities [Member] | Level 3 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			0
Fair value of plan assets [Abstract]
Fair value of plan assets			0
Fair value of plan assets			0
Other Assets [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		17,400,000	4,800,000
Fair value of plan assets [Abstract]
Fair value of plan assets		17,400,000	4,800,000
Fair value of plan assets		17,400,000	4,800,000
Other Assets [Member] | Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			200,000
Fair value of plan assets [Abstract]
Fair value of plan assets			200,000
Fair value of plan assets			200,000
Other Assets [Member] | 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 Assets [Member] | Level 3 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		17,400,000	4,600,000
Fair value of plan assets [Abstract]
Fair value of plan assets		17,400,000	4,600,000
Fair value of plan assets		17,400,000	4,600,000
Non-US Equities [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		15,000,000	33,600,000
Fair value of plan assets [Abstract]
Fair value of plan assets		15,000,000	33,600,000
Fair value of plan assets		15,000,000	33,600,000
Non-US Equities [Member] | Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		15,000,000	33,600,000
Fair value of plan assets [Abstract]
Fair value of plan assets		15,000,000	33,600,000
Fair value of plan assets		15,000,000	33,600,000
Non-US Equities [Member] | 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
Non-US Equities [Member] | 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
Government Treasuries [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			0
Fair value of plan assets [Abstract]
Fair value of plan assets			0
Fair value of plan assets			0
Government Treasuries [Member] | Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			0
Fair value of plan assets [Abstract]
Fair value of plan assets			0
Fair value of plan assets			0
Government Treasuries [Member] | Level 2 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			0
Fair value of plan assets [Abstract]
Fair value of plan assets			0
Fair value of plan assets			0
Government Treasuries [Member] | Level 3 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			0
Fair value of plan assets [Abstract]
Fair value of plan assets			0
Fair value of plan assets			0
Corporate Debt Instruments [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		74,100,000	76,400,000
Fair value of plan assets [Abstract]
Fair value of plan assets		74,100,000	76,400,000
Fair value of plan assets		74,100,000	76,400,000
Corporate Debt Instruments [Member] | Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		43,100,000	59,500,000
Fair value of plan assets [Abstract]
Fair value of plan assets		43,100,000	59,500,000
Fair value of plan assets		43,100,000	59,500,000
Corporate Debt Instruments [Member] | Level 2 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		31,000,000	16,900,000
Fair value of plan assets [Abstract]
Fair value of plan assets		31,000,000	16,900,000
Fair value of plan assets		31,000,000	16,900,000
Corporate Debt Instruments [Member] | 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]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		119,500,000	106,100,000
Fair value of plan assets [Abstract]
Fair value of plan assets		119,500,000	106,100,000
Fair value of plan assets		119,500,000	106,100,000
Equity Securities [Member] | Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		104,500,000
Fair value of plan assets [Abstract]
Fair value of plan assets		104,500,000
Fair value of plan assets		104,500,000
Equity Securities [Member] | Level 2 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		0
Fair value of plan assets [Abstract]
Fair value of plan assets		0
Fair value of plan assets		0
Equity Securities [Member] | Level 3 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		0
Fair value of plan assets [Abstract]
Fair value of plan assets		0
Fair value of plan assets		0
Fixed Income Securities [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		74,100,000	76,400,000
Fair value of plan assets [Abstract]
Fair value of plan assets		74,100,000	76,400,000
Fair value of plan assets		74,100,000	76,400,000
Real Estate [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		1,000,000	200,000
Fair value of plan assets [Abstract]
Fair value of plan assets		1,000,000	200,000
Fair value of plan assets		1,000,000	200,000
Real Estate [Member] | Level 1 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year			0
Fair value of plan assets [Abstract]
Fair value of plan assets			0
Fair value of plan assets			0
Real Estate [Member] | 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] | Level 3 [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		1,000,000	200,000
Fair value of plan assets [Abstract]
Fair value of plan assets		1,000,000	200,000
Fair value of plan assets		1,000,000	200,000
Other Plan Assets [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		17,400,000	4,800,000
Fair value of plan assets [Abstract]
Fair value of plan assets		17,400,000	4,800,000
Fair value of plan assets		17,400,000	4,800,000
Pension Plans, Defined Benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	311,400,000	271,900,000	226,500,000
Service cost		8,100,000	7,100,000	6,600,000
Interest cost		11,600,000	11,600,000	11,500,000
Actuarial (gain) loss		30,400,000	40,500,000
Benefits paid		(12,500,000)	(11,700,000)
Settlements		(600,000)	(1,500,000)
Foreign exchange impact		1,900,000	(600,000)
Other		600,000	0
Benefit obligation at end of year		311,400,000	271,900,000	226,500,000
Change in plan assets [Roll Foward]
Fair value of plan assets beginning of year	212,000,000	187,500,000	191,600,000
Actual return on plan assets		17,200,000	3,100,000
Employer contributions		16,400,000	6,100,000
Plan participants' contributions		500,000	400,000
Benefits paid		(12,500,000)	(11,700,000)
Settlements		(600,000)	(1,500,000)
Foreign exchange impact		3,500,000	(500,000)
Fair value of plan assets at end of year		212,000,000	187,500,000	191,600,000
Funded status		(99,400,000)	(84,400,000)
Amounts recognized in Balance Sheet [Abstract]
Current liability		(300,000)	(400,000)
Non-current liability		(99,100,000)	(84,000,000)
Recognized liability		(99,400,000)	(84,400,000)
Amounts recognized in accumulated other comprehensive income [Abstract]
Net actuarial loss		93,700,000	84,700,000
Prior service cost		3,000,000	2,900,000
Amount recognized end of year		96,700,000	87,600,000
Changes in Plan assets and benefit obligations recognized in other comprehensive income [Abstract]
Current year actuarial gain (loss)		(17,600,000)
Amortization of actuarial loss		8,400,000
Amortization of prior service credit (gain) loss		700,000
Total recognized in other comprehensive income		(8,500,000)
Components of net periodic benefit cost [Abstract]
Service cost		8,100,000	7,100,000	6,600,000
Interest cost		11,600,000	11,600,000	11,500,000
Expected return on plan assets		(13,500,000)	(13,800,000)	(12,600,000)
Amortization of prior service cost		1,200,000	1,300,000	1,400,000
Recognized net actuarial loss		13,300,000	8,600,000	8,400,000
Settlement /curtailment loss		200,000	500,000	0
Net periodic benefit cost		20,900,000	15,300,000	15,300,000
Amounts that will be amortized from Accumulated other comprehensive income (loss) in next fiscal year [Abstract]
Amortization of prior service cost	1,000,000
Amortization of net loss	14,100,000
Total costs to be recognized	15,100,000
Fair value of plan assets [Abstract]
Fair value of plan assets		212,000,000	187,500,000	191,600,000
Fair value of plan assets		212,000,000	187,500,000	191,600,000
Expected company contribution to its benefit plans	10,000,000
Estimated future benefit payments [Abstract]
2013		13,800,000
2014		14,800,000
2015		16,900,000
2016		17,200,000
2017		19,000,000
2018-2022		98,900,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	10,600,000	14,400,000	15,600,000
Service cost		600,000	700,000	700,000
Interest cost		400,000	600,000	800,000
Actuarial (gain) loss		(4,200,000)	(2,100,000)
Benefits paid		(500,000)	(500,000)
Settlements		0	0
Foreign exchange impact		0	0
Other		0	0
Benefit obligation at end of year		10,600,000	14,400,000	15,600,000
Change in plan assets [Roll Foward]
Fair value of plan assets beginning of year	0	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		10,600,000	(14,400,000)
Amounts recognized in Balance Sheet [Abstract]
Current liability		(1,000,000)	(1,200,000)
Non-current liability		(9,600,000)	(13,200,000)
Recognized liability		(10,600,000)	(14,400,000)
Amounts recognized in accumulated other comprehensive income [Abstract]
Net actuarial loss		(10,100,000)	1,500,000
Prior service cost		(800,000)	(11,700,000)
Amount recognized end of year		(10,900,000)	(10,200,000)
Changes in Plan assets and benefit obligations recognized in other comprehensive income [Abstract]
Current year actuarial gain (loss)		2,700,000
Amortization of actuarial loss		(100,000)
Amortization of prior service credit (gain) loss		(1,800,000)
Total recognized in other comprehensive income		800,000
Components of net periodic benefit cost [Abstract]
Service cost		600,000	700,000	700,000
Interest cost		400,000	600,000	800,000
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 loss		(100,000)	100,000	400,000
Settlement /curtailment loss			0	0
Net periodic benefit cost		(2,200,000)	(1,700,000)	(1,200,000)
Amounts that will be amortized from Accumulated other comprehensive income (loss) in next fiscal year [Abstract]
Amortization of prior service cost	(3,100,000)
Amortization of net loss	0
Total costs to be recognized	(3,100,000)
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]
2013		1,000,000
2014		900,000
2015		800,000
2016		800,000
2017		800,000
2018-2022		4,000,000
U.S. Plans [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		148,200,000	132,200,000	138,100,000
Fair value of plan assets [Abstract]
Fair value of plan assets		148,200,000	132,200,000	138,100,000
Fair value of plan assets		148,200,000	132,200,000	138,100,000
International Plans [Member]
Change in plan assets [Roll Foward]
Fair value of plan assets at end of year		63,800,000	55,300,000	53,500,000
Fair value of plan assets [Abstract]
Fair value of plan assets		63,800,000	55,300,000	53,500,000
Fair value of plan assets		$ 63,800,000	$ 55,300,000	$ 53,500,000