Commitments And Contingencies (Environmental Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Commitments And Contingencies [Abstract]
Balance, beginning of year	$ 13,806	$ 15,567	$ 18,970
Expenditures	(1,081)	(1,128)	(1,414)
Changes in estimates recorded to earnings and other	(270)	419	(2,202)
Foreign currency translation	(96)	(1,052)	213
Balance, end of year	12,359	13,806	15,567
Less amounts reported in Accrued expenses	1,433	1,661	5,775
Amounts reported in Other noncurrent liabilities	$ 10,926	$ 12,145	$ 9,792