Pension (Projected Benefit Obligation and Fair Value of Assets) (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
	May 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Pension Plans and SERP
Change in projected benefit obligation:
Benefit obligation, beginning of year		$ 412,828	$ 433,592
Service cost (benefits earned during the period)		5,928	7,601	7,706
Interest cost on projected benefit obligation		20,944	19,074	20,352
Exchange rate fluctuations		(14,668)	2,150
Actuarial (gain) loss		79,117	(23,087)
Plan participants' contributions		1,249	1,108
Plan amendments		(780)	0
Settlements paid		(12,825)	(6,307)
Benefits paid		(20,330)	(21,303)
Benefit obligation, end of year		471,463	412,828	433,592
Change in fair value of plan assets:
Fair value of plan assets, beginning of year		403,249	382,266
Actual return on plan assets		45,985	37,322
Exchange rate fluctuations		(9,328)	2,667
Employer contributions		6,361	7,496
Plan participants' contributions		1,249	1,108
Settlements paid		(12,825)	(6,307)
Benefits paid		(20,330)	(21,303)
Fair value of plan assets, end of year		414,361	403,249	382,266
Funded status of plan:
Funded ratio		87.90%	97.70%
Funded status and net accrued pension benefit asset (cost)		(57,102)	(9,579)
U.S. Plans
Change in projected benefit obligation:
Benefit obligation, beginning of year		310,109	338,133
Service cost (benefits earned during the period)		3,664	4,739	5,957
Interest cost on projected benefit obligation		15,378	14,093	15,398
Exchange rate fluctuations		0	0
Actuarial (gain) loss		51,066	(25,324)
Plan participants' contributions		0	0
Plan amendments		0	0
Settlements paid		(12,825)	(6,307)
Benefits paid		(15,915)	(15,225)
Benefit obligation, end of year		351,477	310,109	338,133
Change in fair value of plan assets:
Fair value of plan assets, beginning of year		332,827	316,826
Actual return on plan assets		33,342	37,458
Exchange rate fluctuations		0	0
Employer contributions	79,700	2,653	75
Plan participants' contributions		0	0
Settlements paid		(12,825)	(6,307)
Benefits paid		(15,915)	(15,225)
Fair value of plan assets, end of year		340,082	332,827	316,826
Funded status of plan:
Funded ratio		96.80%	107.30%
Funded status and net accrued pension benefit asset (cost)		(11,395)	22,718
Non-U.S. Plans
Change in projected benefit obligation:
Benefit obligation, beginning of year		102,719	95,459
Service cost (benefits earned during the period)		2,264	2,862	1,749
Interest cost on projected benefit obligation		5,566	4,981	4,954
Exchange rate fluctuations		(14,668)	2,150
Actuarial (gain) loss		28,051	2,237
Plan participants' contributions		1,249	1,108
Plan amendments		(780)	0
Settlements paid		0	0
Benefits paid		(4,415)	(6,078)
Benefit obligation, end of year		119,986	102,719	95,459
Change in fair value of plan assets:
Fair value of plan assets, beginning of year		70,422	65,440
Actual return on plan assets		12,643	(136)
Exchange rate fluctuations		(9,328)	2,667
Employer contributions		3,708	7,421
Plan participants' contributions		1,249	1,108
Settlements paid		0	0
Benefits paid		(4,415)	(6,078)
Fair value of plan assets, end of year		74,279	70,422	65,440
Funded status of plan:
Funded ratio		61.90%	68.60%
Funded status and net accrued pension benefit asset (cost)		$ (45,707)	$ (32,297)