Retirement Plans And Postretirement Benefits (Fair Value Of Assets Of, And The Funded Status Of, Postretirement Plans) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Changes in Plan Assets:
Fair value of plan assets at end of year	$ 77,728
Funded status:	(4,875)	(5,736)
Postretirement Benefit Costs [Member] | U.S. [Member]
Changes in Benefit Obligation:
Net benefit obligation at beginning of year	11,275	13,506
Service cost	0	0	0
Interest cost	396	371	497
Foreign currency exchange rates	0	0
Actuarial loss (gain)	1,151	(1,284)
Gross benefits paid	(1,236)	(1,318)
Plan amendment	0	0
Net benefit obligation at end of year	11,586	11,275	13,506
Changes in Plan Assets:
Fair value of plan assets at beginning of year	0	0
Employer contributions	1,236	1,318
Gross benefits paid	(1,236)	(1,318)
Fair value of plan assets at end of year	0	0	0
Funded status:	(11,586)	(11,275)
Prior service credit	0	0
Current liabilities	(1,204)	(1,279)
Non-current liabilities	(10,382)	(9,996)
Net amount recognized	(11,586)	(11,275)
Postretirement Benefit Costs [Member] | Foreign [Member]
Changes in Benefit Obligation:
Net benefit obligation at beginning of year	15,645	19,188
Service cost	71	105	183
Interest cost	976	994	1,024
Foreign currency exchange rates	(1,437)	(2,183)
Actuarial loss (gain)	1,511	(1,365)
Gross benefits paid	(1,068)	(1,161)
Plan amendment	(294)	67
Net benefit obligation at end of year	15,404	15,645	19,188
Changes in Plan Assets:
Fair value of plan assets at beginning of year	0	0
Employer contributions	1,068	1,161
Gross benefits paid	(1,068)	(1,161)
Fair value of plan assets at end of year	0	0	0
Funded status:	(15,404)	(15,645)
Prior service credit	1,554	1,882
Current liabilities	(953)	(1,035)
Non-current liabilities	(14,451)	(14,610)
Net amount recognized	$ (15,404)	$ (15,645)