Pension and Non-pension Postretirement Benefits (Net Benefit Costs) (Details) (USD $)	0 Months Ended	3 Months Ended		6 Months Ended
	Jan. 02, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Amortization of unrecognized:
Settlement charge		$ 0	$ 715,000	$ 0	$ 715,000
Defined Benefit Pension Plans and SERP [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		1,386,000	1,778,000	2,989,000	3,778,000
Interest cost		5,241,000	4,696,000	10,535,000	9,433,000
Expected return on plan assets		(6,209,000)	(6,101,000)	(12,449,000)	(12,181,000)
Amortization of unrecognized:
Prior service cost		322,000	353,000	644,000	708,000
Loss / (gain)		1,046,000	2,478,000	2,546,000	4,803,000
Settlement charge		0	715,000	0	715,000
Pension expense or non-pension postretirement benefit expense		1,786,000	3,919,000	4,265,000	7,256,000
Defined Benefit Plan, Contributions [Abstract]
Employer contributions made to defined benefit plans		800,000		1,900,000
Estimated employer contributions to defined benefit plans in remainder of 2014		4,400,000
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		807,000	1,092,000	1,832,000	2,370,000
Interest cost		3,819,000	3,501,000	7,689,000	6,982,000
Expected return on plan assets		(5,585,000)	(5,605,000)	(11,193,000)	(11,204,000)
Amortization of unrecognized:
Prior service cost		264,000	293,000	529,000	586,000
Loss / (gain)		787,000	2,263,000	2,029,000	4,350,000
Settlement charge		0	715,000	0	715,000
Pension expense or non-pension postretirement benefit expense		92,000	2,259,000	886,000	3,799,000
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		579,000	686,000	1,157,000	1,408,000
Interest cost		1,422,000	1,195,000	2,846,000	2,451,000
Expected return on plan assets		(624,000)	(496,000)	(1,256,000)	(977,000)
Amortization of unrecognized:
Prior service cost		58,000	60,000	115,000	122,000
Loss / (gain)		259,000	215,000	517,000	453,000
Settlement charge		0	0	0	0
Pension expense or non-pension postretirement benefit expense		1,694,000	1,660,000	3,379,000	3,457,000
Non-Pension Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		252,000	204,000	504,000	596,000
Interest cost		739,000	641,000	1,476,000	1,365,000
Amortization of unrecognized:
Prior service cost		35,000	36,000	70,000	70,000
Loss / (gain)		67,000	139,000	134,000	429,000
Pension expense or non-pension postretirement benefit expense		1,093,000	1,020,000	2,184,000	2,460,000
Defined Benefit Plan, Contributions [Abstract]
Employer contributions made to defined benefit plans		1,000,000		2,100,000
Estimated employer contributions to defined benefit plans in year 2014		4,800,000
Retirees subject to health reimbursement arrangement, minimum age	65 years
Life insurance benefit, maximum	10,000
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		251,000	203,000	503,000	595,000
Interest cost		710,000	610,000	1,420,000	1,311,000
Amortization of unrecognized:
Prior service cost		35,000	36,000	70,000	70,000
Loss / (gain)		67,000	138,000	134,000	429,000
Pension expense or non-pension postretirement benefit expense		1,063,000	987,000	2,127,000	2,405,000
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		1,000	1,000	1,000	1,000
Interest cost		29,000	31,000	56,000	54,000
Amortization of unrecognized:
Prior service cost		0	0	0	0
Loss / (gain)		0	1,000	0	0
Pension expense or non-pension postretirement benefit expense		$ 30,000	$ 33,000	$ 57,000	$ 55,000