Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Canadian Dollar [Member]
Description Of Business And Basis Of Presentation [Line Items]
Average exchange rate	1.0104	0.9678	1.0060	0.9769
Change in average foreign currency rate	(4.4)		(3.0)
Euros [Member]
Description Of Business And Basis Of Presentation [Line Items]
Average exchange rate	0.7796	0.6947	0.7712	0.7130
Change in average foreign currency rate	(12.2)		(8.2)
Polish Zloty [Member]
Description Of Business And Basis Of Presentation [Line Items]
Average exchange rate	3.3181	2.7495	3.2724	2.8180
Change in average foreign currency rate	(20.7)		(16.1)